diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/ubicom32/Makefile | 3 | ||||
| -rw-r--r-- | target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch | 48922 |
2 files changed, 2 insertions, 48923 deletions
diff --git a/target/linux/ubicom32/Makefile b/target/linux/ubicom32/Makefile index fb181d6a76..2901e28412 100644 --- a/target/linux/ubicom32/Makefile +++ b/target/linux/ubicom32/Makefile @@ -1,5 +1,5 @@ # -# Copyright (C) 2006-2008 OpenWrt.org +# Copyright (C) 2006-2009 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. @@ -13,6 +13,7 @@ ARCH:=ubicom32 BOARD:=ubicom32 BOARDNAME:=Ubicom IPxx FEATURES:=nommu ramdisk +CFLAGS:=-Os -pipe -march=ubicom32v4 -funit-at-a-time LINUX_VERSION:=2.6.28.10 diff --git a/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch b/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch deleted file mode 100644 index 4ec511fa6e..0000000000 --- a/target/linux/ubicom32/patches-2.6.28/100-ubicom32_support.patch +++ /dev/null @@ -1,48922 +0,0 @@ ---- /dev/null -+++ b/arch/ubicom32/crypto/aes_ubicom32.c -@@ -0,0 +1,458 @@ -+/* -+ * arch/ubicom32/crypto/aes_ubicom32.c -+ * Ubicom32 implementation of the AES Cipher Algorithm. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <crypto/aes.h> -+#include <crypto/algapi.h> -+#include <linux/err.h> -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/spinlock.h> -+#include "crypto_ubicom32.h" -+#include <asm/linkage.h> -+ -+struct ubicom32_aes_ctx { -+ u8 key[AES_MAX_KEY_SIZE]; -+ u32 ctrl; -+ int key_len; -+}; -+ -+static inline void aes_hw_set_key(const u8 *key, u8 key_len) -+{ -+ /* -+ * switch case has more overhead than 4 move.4 instructions, so just copy 256 bits -+ */ -+ SEC_SET_KEY_256(key); -+} -+ -+static inline void aes_hw_set_iv(const u8 *iv) -+{ -+ SEC_SET_IV_4W(iv); -+} -+ -+static inline void aes_hw_cipher(u8 *out, const u8 *in) -+{ -+ SEC_SET_INPUT_4W(in); -+ -+ asm volatile ( -+ " ; start AES by writing 0x40(SECURITY_BASE) \n\t" -+ " move.4 0x40(%0), #0x01 \n\t" -+ " pipe_flush 0 \n\t" -+ " \n\t" -+ " ; wait for the module to calculate the output \n\t" -+ " btst 0x04(%0), #0 \n\t" -+ " jmpne.f .-4 \n\t" -+ : -+ : "a" (SEC_BASE) -+ : "cc" -+ ); -+ -+ SEC_GET_OUTPUT_4W(out); -+} -+ -+static int __ocm_text aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, -+ unsigned int key_len) -+{ -+ struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm); -+ -+ uctx->key_len = key_len; -+ memcpy(uctx->key, in_key, key_len); -+ -+ /* -+ * leave out HASH_ALG (none = 0), CBC (no = 0), DIR (unknown) yet -+ */ -+ switch (uctx->key_len) { -+ case 16: -+ uctx->ctrl = SEC_KEY_128_BITS | SEC_ALG_AES; -+ break; -+ case 24: -+ uctx->ctrl = SEC_KEY_192_BITS | SEC_ALG_AES; -+ break; -+ case 32: -+ uctx->ctrl = SEC_KEY_256_BITS | SEC_ALG_AES; -+ break; -+ } -+ -+ return 0; -+} -+ -+static inline void aes_cipher(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags) -+{ -+ const struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm); -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ hw_crypto_set_ctrl(uctx->ctrl | extra_flags); -+ -+ aes_hw_set_key(uctx->key, uctx->key_len); -+ aes_hw_cipher(out, in); -+ -+ hw_crypto_unlock(); -+} -+ -+static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) -+{ -+ aes_cipher(tfm, out, in, SEC_DIR_ENCRYPT); -+} -+ -+static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) -+{ -+ aes_cipher(tfm, out, in, SEC_DIR_DECRYPT); -+} -+ -+static struct crypto_alg aes_alg = { -+ .cra_name = "aes", -+ .cra_driver_name = "aes-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER, -+ .cra_blocksize = AES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(aes_alg.cra_list), -+ .cra_u = { -+ .cipher = { -+ .cia_min_keysize = AES_MIN_KEY_SIZE, -+ .cia_max_keysize = AES_MAX_KEY_SIZE, -+ .cia_setkey = aes_set_key, -+ .cia_encrypt = aes_encrypt, -+ .cia_decrypt = aes_decrypt, -+ } -+ } -+}; -+ -+static void __ocm_text ecb_aes_crypt_loop(u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ aes_hw_cipher(out, in); -+ out += AES_BLOCK_SIZE; -+ in += AES_BLOCK_SIZE; -+ n -= AES_BLOCK_SIZE; -+ } -+} -+ -+static int __ocm_text ecb_aes_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes, u32 extra_flags) -+{ -+ const struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm); -+ int ret; -+ -+ struct blkcipher_walk walk; -+ blkcipher_walk_init(&walk, dst, src, nbytes); -+ ret = blkcipher_walk_virt(desc, &walk); -+ if (ret) { -+ return ret; -+ } -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ hw_crypto_set_ctrl(uctx->ctrl | extra_flags); -+ aes_hw_set_key(uctx->key, uctx->key_len); -+ -+ while (likely((nbytes = walk.nbytes))) { -+ /* only use complete blocks */ -+ unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1); -+ u8 *out = walk.dst.virt.addr; -+ u8 *in = walk.src.virt.addr; -+ -+ /* finish n/16 blocks */ -+ ecb_aes_crypt_loop(out, in, n); -+ -+ nbytes &= AES_BLOCK_SIZE - 1; -+ ret = blkcipher_walk_done(desc, &walk, nbytes); -+ } -+ -+ hw_crypto_unlock(); -+ return ret; -+} -+ -+static int ecb_aes_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT); -+} -+ -+static int ecb_aes_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT); -+} -+ -+static struct crypto_alg ecb_aes_alg = { -+ .cra_name = "ecb(aes)", -+ .cra_driver_name = "ecb-aes-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = AES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(ecb_aes_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = AES_MIN_KEY_SIZE, -+ .max_keysize = AES_MAX_KEY_SIZE, -+ .setkey = aes_set_key, -+ .encrypt = ecb_aes_encrypt, -+ .decrypt = ecb_aes_decrypt, -+ } -+ } -+}; -+ -+#if CRYPTO_UBICOM32_LOOP_ASM -+void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ asm volatile ( -+ "; set init. iv 4w \n\t" -+ " move.4 0x50(%0), 0x0(%3) \n\t" -+ " move.4 0x54(%0), 0x4(%3) \n\t" -+ " move.4 0x58(%0), 0x8(%3) \n\t" -+ " move.4 0x5c(%0), 0xc(%3) \n\t" -+ " \n\t" -+ "; we know n > 0, so we can always \n\t" -+ "; load the first block \n\t" -+ "; set input 4w \n\t" -+ " move.4 0x30(%0), 0x0(%2) \n\t" -+ " move.4 0x34(%0), 0x4(%2) \n\t" -+ " move.4 0x38(%0), 0x8(%2) \n\t" -+ " move.4 0x3c(%0), 0xc(%2) \n\t" -+ " \n\t" -+ "; kickoff hw \n\t" -+ " move.4 0x40(%0), %2 \n\t" -+ " \n\t" -+ "; update n & flush \n\t" -+ " add.4 %4, #-16, %4 \n\t" -+ " pipe_flush 0 \n\t" -+ " \n\t" -+ "; while (n): work on 2nd block \n\t" -+ " 1: lsl.4 d15, %4, #0x0 \n\t" -+ " jmpeq.f 5f \n\t" -+ " \n\t" -+ "; set input 4w (2nd) \n\t" -+ " move.4 0x30(%0), 0x10(%2) \n\t" -+ " move.4 0x34(%0), 0x14(%2) \n\t" -+ " move.4 0x38(%0), 0x18(%2) \n\t" -+ " move.4 0x3c(%0), 0x1c(%2) \n\t" -+ " \n\t" -+ "; update n/in asap while waiting \n\t" -+ " add.4 %4, #-16, %4 \n\t" -+ " move.4 d15, 16(%2)++ \n\t" -+ " \n\t" -+ "; wait for the previous output \n\t" -+ " btst 0x04(%0), #0 \n\t" -+ " jmpne.f -4 \n\t" -+ " \n\t" -+ "; read previous output \n\t" -+ " move.4 0x0(%1), 0x50(%0) \n\t" -+ " move.4 0x4(%1), 0x54(%0) \n\t" -+ " move.4 0x8(%1), 0x58(%0) \n\t" -+ " move.4 0xc(%1), 0x5c(%0) \n\t" -+ " \n\t" -+ "; kick off hw for 2nd input \n\t" -+ " move.4 0x40(%0), %2 \n\t" -+ " \n\t" -+ "; update out asap \n\t" -+ " move.4 d15, 16(%1)++ \n\t" -+ " \n\t" -+ "; go back to loop \n\t" -+ " jmpt 1b \n\t" -+ " \n\t" -+ "; wait for last output \n\t" -+ " 5: btst 0x04(%0), #0 \n\t" -+ " jmpne.f -4 \n\t" -+ " \n\t" -+ "; read last output \n\t" -+ " move.4 0x0(%1), 0x50(%0) \n\t" -+ " move.4 0x4(%1), 0x54(%0) \n\t" -+ " move.4 0x8(%1), 0x58(%0) \n\t" -+ " move.4 0xc(%1), 0x5c(%0) \n\t" -+ " \n\t" -+ "; copy out iv \n\t" -+ " move.4 0x0(%3), 0x50(%0) \n\t" -+ " move.4 0x4(%3), 0x54(%0) \n\t" -+ " move.4 0x8(%3), 0x58(%0) \n\t" -+ " move.4 0xc(%3), 0x5c(%0) \n\t" -+ " \n\t" -+ : -+ : "a" (SEC_BASE), "a" (out), "a" (in), "a" (iv), "d" (n) -+ : "d15", "cc" -+ ); -+} -+ -+#else -+ -+static void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ aes_hw_set_iv(iv); -+ while (likely(n)) { -+ aes_hw_cipher(out, in); -+ out += AES_BLOCK_SIZE; -+ in += AES_BLOCK_SIZE; -+ n -= AES_BLOCK_SIZE; -+ } -+ SEC_COPY_4W(iv, out - AES_BLOCK_SIZE); -+} -+ -+#endif -+ -+static void __ocm_text cbc_aes_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ while (likely(n)) { -+ aes_hw_set_iv(iv); -+ SEC_COPY_4W(iv, in); -+ aes_hw_cipher(out, in); -+ out += AES_BLOCK_SIZE; -+ in += AES_BLOCK_SIZE; -+ n -= AES_BLOCK_SIZE; -+ } -+} -+ -+static int __ocm_text cbc_aes_crypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes, u32 extra_flags) -+{ -+ struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm); -+ int ret; -+ -+ struct blkcipher_walk walk; -+ blkcipher_walk_init(&walk, dst, src, nbytes); -+ ret = blkcipher_walk_virt(desc, &walk); -+ if (unlikely(ret)) { -+ return ret; -+ } -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ hw_crypto_set_ctrl(uctx->ctrl | extra_flags); -+ aes_hw_set_key(uctx->key, uctx->key_len); -+ -+ while (likely((nbytes = walk.nbytes))) { -+ /* only use complete blocks */ -+ unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1); -+ if (likely(n)) { -+ u8 *out = walk.dst.virt.addr; -+ u8 *in = walk.src.virt.addr; -+ -+ if (extra_flags & SEC_DIR_ENCRYPT) { -+ cbc_aes_encrypt_loop(out, in, walk.iv, n); -+ } else { -+ cbc_aes_decrypt_loop(out, in, walk.iv, n); -+ } -+ } -+ -+ nbytes &= AES_BLOCK_SIZE - 1; -+ ret = blkcipher_walk_done(desc, &walk, nbytes); -+ } -+ hw_crypto_unlock(); -+ -+ return ret; -+} -+ -+static int __ocm_text cbc_aes_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT | SEC_CBC_SET); -+} -+ -+static int __ocm_text cbc_aes_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT | SEC_CBC_SET); -+} -+ -+static struct crypto_alg cbc_aes_alg = { -+ .cra_name = "cbc(aes)", -+ .cra_driver_name = "cbc-aes-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = AES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(cbc_aes_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = AES_MIN_KEY_SIZE, -+ .max_keysize = AES_MAX_KEY_SIZE, -+ .ivsize = AES_BLOCK_SIZE, -+ .setkey = aes_set_key, -+ .encrypt = cbc_aes_encrypt, -+ .decrypt = cbc_aes_decrypt, -+ } -+ } -+}; -+ -+static int __init aes_init(void) -+{ -+ int ret; -+ -+ hw_crypto_init(); -+ -+ ret = crypto_register_alg(&aes_alg); -+ if (ret) -+ goto aes_err; -+ -+ ret = crypto_register_alg(&ecb_aes_alg); -+ if (ret) -+ goto ecb_aes_err; -+ -+ ret = crypto_register_alg(&cbc_aes_alg); -+ if (ret) -+ goto cbc_aes_err; -+ -+out: -+ return ret; -+ -+cbc_aes_err: -+ crypto_unregister_alg(&ecb_aes_alg); -+ecb_aes_err: -+ crypto_unregister_alg(&aes_alg); -+aes_err: -+ goto out; -+} -+ -+static void __exit aes_fini(void) -+{ -+ crypto_unregister_alg(&cbc_aes_alg); -+ crypto_unregister_alg(&ecb_aes_alg); -+ crypto_unregister_alg(&aes_alg); -+} -+ -+module_init(aes_init); -+module_exit(aes_fini); -+ -+MODULE_ALIAS("aes"); -+ -+MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/arch/ubicom32/crypto/crypto_des.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/crypto/crypto_des.h -+ * Function for checking keys for the DES and Triple DES Encryption -+ * algorithms. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef __CRYPTO_DES_H__ -+#define __CRYPTO_DES_H__ -+ -+extern int crypto_des_check_key(const u8*, unsigned int, u32*); -+ -+#endif /* __CRYPTO_DES_H__ */ ---- /dev/null -+++ b/arch/ubicom32/crypto/crypto_ubicom32.c -@@ -0,0 +1,50 @@ -+/* -+ * arch/ubicom32/crypto/crypto_ubicom32.c -+ * Generic code to support ubicom32 hardware crypto accelerator -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include "crypto_ubicom32.h" -+ -+spinlock_t crypto_ubicom32_lock; -+bool crypto_ubicom32_inited = false; -+volatile bool crypto_ubicom32_on = false; -+volatile unsigned long crypto_ubicom32_last_use; -+ -+struct timer_list crypto_ubicom32_ps_timer; -+void crypto_ubicom32_ps_check(unsigned long data) -+{ -+ unsigned long idle_time = msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS); -+ -+ BUG_ON(!crypto_ubicom32_on); -+ -+ if (((jiffies - crypto_ubicom32_last_use) > idle_time) && spin_trylock_bh(&crypto_ubicom32_lock)) { -+ hw_crypto_turn_off(); -+ spin_unlock_bh(&crypto_ubicom32_lock); -+ return; -+ } -+ -+ /* keep monitoring */ -+ hw_crypto_ps_start(); -+} ---- /dev/null -+++ b/arch/ubicom32/crypto/crypto_ubicom32.h -@@ -0,0 +1,346 @@ -+/* -+ * arch/ubicom32/crypto/crypto_ubicom32.h -+ * Support for Ubicom32 cryptographic instructions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _CRYPTO_ARCH_UBICOM32_CRYPT_H -+#define _CRYPTO_ARCH_UBICOM32_CRYPT_H -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/jiffies.h> -+#include <linux/timer.h> -+#include <linux/spinlock.h> -+#include <asm/errno.h> -+#include <asm/io.h> -+#include <asm/ip5000.h> -+ -+#define CRYPTO_UBICOM32_LOOP_ASM 1 -+#define CRYPTO_UBICOM32_ALIGNMENT 4 -+#define SEC_ALIGNED(p) (((u32)p & 3) == 0) -+ -+#define SEC_BASE SECURITY_BASE -+#define SEC_KEY_OFFSET SECURITY_KEY_VALUE(0) -+#define SEC_INPUT_OFFSET SECURITY_KEY_IN(0) -+#define SEC_OUTPUT_OFFSET SECURITY_KEY_OUT(0) -+#define SEC_HASH_OFFSET SECURITY_KEY_HASH(0) -+ -+#define SEC_KEY_128_BITS SECURITY_CTRL_KEY_SIZE(0) -+#define SEC_KEY_192_BITS SECURITY_CTRL_KEY_SIZE(1) -+#define SEC_KEY_256_BITS SECURITY_CTRL_KEY_SIZE(2) -+ -+#define SEC_HASH_NONE SECURITY_CTRL_HASH_ALG_NONE -+#define SEC_HASH_MD5 SECURITY_CTRL_HASH_ALG_MD5 -+#define SEC_HASH_SHA1 SECURITY_CTRL_HASH_ALG_SHA1 -+ -+#define SEC_CBC_SET SECURITY_CTRL_CBC -+#define SEC_CBC_NONE 0 -+ -+#define SEC_ALG_AES SECURITY_CTRL_CIPHER_ALG_AES -+#define SEC_ALG_NONE SECURITY_CTRL_CIPHER_ALG_NONE -+#define SEC_ALG_DES SECURITY_CTRL_CIPHER_ALG_DES -+#define SEC_ALG_3DES SECURITY_CTRL_CIPHER_ALG_3DES -+ -+#define SEC_DIR_ENCRYPT SECURITY_CTRL_ENCIPHER -+#define SEC_DIR_DECRYPT 0 -+ -+#define CRYPTO_UBICOM32_PRIORITY 300 -+#define CRYPTO_UBICOM32_COMPOSITE_PRIORITY 400 -+ -+#define HW_CRYPTO_PS_MAX_IDLE_MS 100 /* idle time (ms) before shuting down sm */ -+ -+extern spinlock_t crypto_ubicom32_lock; -+extern bool crypto_ubicom32_inited; -+extern volatile bool crypto_ubicom32_on; -+extern volatile unsigned long crypto_ubicom32_last_use; -+extern struct timer_list crypto_ubicom32_ps_timer; -+extern void crypto_ubicom32_ps_check(unsigned long data); -+ -+#define SEC_COPY_2W(t, s) \ -+ asm volatile ( \ -+ " move.4 0(%0), 0(%1) \n\t" \ -+ " move.4 4(%0), 4(%1) \n\t" \ -+ \ -+ : \ -+ : "a" (t), "a" (s) \ -+ ) -+ -+#define SEC_COPY_4W(t, s) \ -+ asm volatile ( \ -+ " move.4 0(%0), 0(%1) \n\t" \ -+ " move.4 4(%0), 4(%1) \n\t" \ -+ " move.4 8(%0), 8(%1) \n\t" \ -+ " move.4 12(%0), 12(%1) \n\t" \ -+ : \ -+ : "a" (t), "a" (s) \ -+ ) -+ -+#define SEC_COPY_5W(t, s) \ -+ asm volatile ( \ -+ " move.4 0(%0), 0(%1) \n\t" \ -+ " move.4 4(%0), 4(%1) \n\t" \ -+ " move.4 8(%0), 8(%1) \n\t" \ -+ " move.4 12(%0), 12(%1) \n\t" \ -+ " move.4 16(%0), 16(%1) \n\t" \ -+ : \ -+ : "a" (t), "a" (s) \ -+ ) -+ -+#define SEC_SET_KEY_2W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x10(%0), 0(%1) \n\t" \ -+ " move.4 0x14(%0), 4(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_SET_KEY_4W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x10(%0), 0(%1) \n\t" \ -+ " move.4 0x14(%0), 4(%1) \n\t" \ -+ " move.4 0x18(%0), 8(%1) \n\t" \ -+ " move.4 0x1c(%0), 12(%1) \n\t" \ -+ : \ -+ : "a"(SECURITY_BASE), "a"(x) \ -+ ) -+ -+#define SEC_SET_KEY_6W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x10(%0), 0(%1) \n\t" \ -+ " move.4 0x14(%0), 4(%1) \n\t" \ -+ " move.4 0x18(%0), 8(%1) \n\t" \ -+ " move.4 0x1c(%0), 12(%1) \n\t" \ -+ " move.4 0x20(%0), 16(%1) \n\t" \ -+ " move.4 0x24(%0), 20(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_SET_KEY_8W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x10(%0), 0(%1) \n\t" \ -+ " move.4 0x14(%0), 4(%1) \n\t" \ -+ " move.4 0x18(%0), 8(%1) \n\t" \ -+ " move.4 0x1c(%0), 12(%1) \n\t" \ -+ " move.4 0x20(%0), 16(%1) \n\t" \ -+ " move.4 0x24(%0), 20(%1) \n\t" \ -+ " move.4 0x28(%0), 24(%1) \n\t" \ -+ " move.4 0x2c(%0), 28(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_SET_KEY_64(k) SEC_SET_KEY_2W(k) -+#define SEC_SET_KEY_128(k) SEC_SET_KEY_4W(k) -+#define SEC_SET_KEY_192(k) SEC_SET_KEY_6W(k) -+#define SEC_SET_KEY_256(k) SEC_SET_KEY_8W(k) -+ -+#define DES_SET_KEY(x) SEC_SET_KEY_64(x) -+#define DES3_SET_KEY(x) SEC_SET_KEY_192(x) -+ -+#define SEC_SET_INPUT_2W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x30(%0), 0(%1) \n\t" \ -+ " move.4 0x34(%0), 4(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_GET_OUTPUT_2W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0(%1), 0x50(%0) \n\t" \ -+ " move.4 4(%1), 0x54(%0) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_SET_INPUT_4W(x) \ -+ asm volatile ( \ -+ " ; write key to Security Keyblock \n\t" \ -+ " move.4 0x30(%0), 0(%1) \n\t" \ -+ " move.4 0x34(%0), 4(%1) \n\t" \ -+ " move.4 0x38(%0), 8(%1) \n\t" \ -+ " move.4 0x3c(%0), 12(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_GET_OUTPUT_4W(x) \ -+ asm volatile ( \ -+ " ; read output from Security Keyblock \n\t" \ -+ " move.4 0(%1), 0x50(%0) \n\t" \ -+ " move.4 4(%1), 0x54(%0) \n\t" \ -+ " move.4 8(%1), 0x58(%0) \n\t" \ -+ " move.4 12(%1), 0x5c(%0) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_SET_IV_4W(x) \ -+ asm volatile ( \ -+ " ; write IV to Security Keyblock \n\t" \ -+ " move.4 0x50(%0), 0(%1) \n\t" \ -+ " move.4 0x54(%0), 4(%1) \n\t" \ -+ " move.4 0x58(%0), 8(%1) \n\t" \ -+ " move.4 0x5c(%0), 12(%1) \n\t" \ -+ : \ -+ : "a" (SECURITY_BASE), "a" (x) \ -+ ) -+ -+#define SEC_PIPE_FLUSH() asm volatile ( " pipe_flush 0 \n\t" ) -+ -+static inline void hw_crypto_set_ctrl(uint32_t c) -+{ -+ asm volatile ( -+ " move.4 0(%0), %1 \n\t" -+ : -+ : "a" (SECURITY_BASE + SECURITY_CTRL), "d" (c) -+ ); -+} -+ -+static inline void hw_crypto_ps_start(void) -+{ -+ crypto_ubicom32_ps_timer.expires = jiffies + msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS >> 1); -+ add_timer(&crypto_ubicom32_ps_timer); -+} -+ -+static inline void hw_crypto_turn_on(void) -+{ -+ asm volatile ( -+ " moveai A4, %0 \n\t" -+ " bset 0x0(A4), 0x0(A4), %1 \n\t" -+ " cycles 11 \n\t" -+ : -+ : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO) -+ : "a4", "cc" -+ ); -+ crypto_ubicom32_on = true; -+} -+ -+static inline void hw_crypto_turn_off(void) -+{ -+ asm volatile ( -+ " moveai A4, %0 \n\t" -+ " bclr 0x0(A4), 0x0(A4), %1 \n\t" -+ : -+ : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO) -+ : "a4", "cc" -+ ); -+ crypto_ubicom32_on = false; -+} -+ -+/* -+ * hw_crypto_check -+ * Most probably hw crypto is called in clusters and it makes no sense to turn it off -+ * and on and waster 13 cycles every time. -+ */ -+static inline void hw_crypto_check(void) -+{ -+ if (likely(crypto_ubicom32_on)) { -+ return; -+ } -+ crypto_ubicom32_last_use = jiffies; -+ hw_crypto_turn_on(); -+ hw_crypto_ps_start(); -+} -+ -+/* -+ * hw_crypto_ps_init -+ * Init power save timer -+ */ -+static inline void hw_crypto_ps_init(void) -+{ -+ init_timer_deferrable(&crypto_ubicom32_ps_timer); -+ crypto_ubicom32_ps_timer.function = crypto_ubicom32_ps_check; -+ crypto_ubicom32_ps_timer.data = 0; -+} -+ -+/* -+ * hw_crypto_init() -+ * Initialize OCP security module lock and disables its clock. -+ */ -+static inline void hw_crypto_init(void) -+{ -+ if (!crypto_ubicom32_inited) { -+ crypto_ubicom32_inited = true; -+ spin_lock_init(&crypto_ubicom32_lock); -+ hw_crypto_ps_init(); -+ hw_crypto_turn_off(); -+ } -+} -+ -+/* -+ * hw_crypto_lock() -+ * Locks the OCP security module and enables its clock. -+ */ -+static inline void hw_crypto_lock(void) -+{ -+ spin_lock_bh(&crypto_ubicom32_lock); -+} -+ -+/* -+ * hw_crypto_unlock() -+ * Unlocks the OCP security module and disables its clock. -+ */ -+static inline void hw_crypto_unlock(void) -+{ -+ crypto_ubicom32_last_use = jiffies; -+ spin_unlock_bh(&crypto_ubicom32_lock); -+} -+ -+#define CONFIG_CRYPTO_UBICOM32_DEBUG 1 -+ -+#ifdef CONFIG_CRYPTO_UBICOM32_DEBUG -+static inline void hex_dump(void *buf, int b_size, const char *msg) -+{ -+ u8 *b = (u8 *)buf; -+ int i; -+ if (msg) { -+ printk("%s:\t", msg); -+ } -+ -+ for (i=0; i < b_size; i++) { -+ printk("%02x ", b[i]); -+ if ((i & 3) == 3) { -+ printk(" "); -+ } -+ if ((i & 31) == 31) { -+ printk("\n"); -+ } -+ } -+ printk("\n"); -+} -+#define UBICOM32_SEC_DUMP(a, b, c) hex_dump(a, b, c) -+#else -+#define UBICOM32_SEC_DUMP(a, b, c) -+#endif -+ -+#endif /* _CRYPTO_ARCH_UBICOM32_CRYPT_H */ ---- /dev/null -+++ b/arch/ubicom32/crypto/des_check_key.c -@@ -0,0 +1,148 @@ -+/* -+ * arch/ubicom32/crypto/des_check_key.c -+ * Ubicom32 architecture function for checking keys for the DES and -+ * Tripple DES Encryption algorithms. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * Originally released as descore by Dana L. How <how@isl.stanford.edu>. -+ * Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel. -+ * Derived from Cryptoapi and Nettle implementations, adapted for in-place -+ * scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL. -+ * -+ * s390 Version: -+ * Copyright IBM Corp. 2003 -+ * Author(s): Thomas Spatzier -+ * Jan Glauber (jan.glauber@de.ibm.com) -+ * -+ * Derived from "crypto/des.c" -+ * Copyright (c) 1992 Dana L. How. -+ * Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de> -+ * Copyright (c) Gisle Sflensminde <gisle@ii.uib.no> -+ * Copyright (C) 2001 Niels Mvller. -+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/errno.h> -+#include <linux/crypto.h> -+#include "crypto_des.h" -+ -+#define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o)) -+ -+static const u8 parity[] = { -+ 8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3, -+ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, -+ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, -+ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, -+ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8, -+ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, -+ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0, -+ 4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8, -+}; -+ -+/* -+ * RFC2451: Weak key checks SHOULD be performed. -+ */ -+int -+crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags) -+{ -+ u32 n, w; -+ -+ n = parity[key[0]]; n <<= 4; -+ n |= parity[key[1]]; n <<= 4; -+ n |= parity[key[2]]; n <<= 4; -+ n |= parity[key[3]]; n <<= 4; -+ n |= parity[key[4]]; n <<= 4; -+ n |= parity[key[5]]; n <<= 4; -+ n |= parity[key[6]]; n <<= 4; -+ n |= parity[key[7]]; -+ w = 0x88888888L; -+ -+ if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY) -+ && !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */ -+ if (n < 0x41415151) { -+ if (n < 0x31312121) { -+ if (n < 0x14141515) { -+ /* 01 01 01 01 01 01 01 01 */ -+ if (n == 0x11111111) goto weak; -+ /* 01 1F 01 1F 01 0E 01 0E */ -+ if (n == 0x13131212) goto weak; -+ } else { -+ /* 01 E0 01 E0 01 F1 01 F1 */ -+ if (n == 0x14141515) goto weak; -+ /* 01 FE 01 FE 01 FE 01 FE */ -+ if (n == 0x16161616) goto weak; -+ } -+ } else { -+ if (n < 0x34342525) { -+ /* 1F 01 1F 01 0E 01 0E 01 */ -+ if (n == 0x31312121) goto weak; -+ /* 1F 1F 1F 1F 0E 0E 0E 0E (?) */ -+ if (n == 0x33332222) goto weak; -+ } else { -+ /* 1F E0 1F E0 0E F1 0E F1 */ -+ if (n == 0x34342525) goto weak; -+ /* 1F FE 1F FE 0E FE 0E FE */ -+ if (n == 0x36362626) goto weak; -+ } -+ } -+ } else { -+ if (n < 0x61616161) { -+ if (n < 0x44445555) { -+ /* E0 01 E0 01 F1 01 F1 01 */ -+ if (n == 0x41415151) goto weak; -+ /* E0 1F E0 1F F1 0E F1 0E */ -+ if (n == 0x43435252) goto weak; -+ } else { -+ /* E0 E0 E0 E0 F1 F1 F1 F1 (?) */ -+ if (n == 0x44445555) goto weak; -+ /* E0 FE E0 FE F1 FE F1 FE */ -+ if (n == 0x46465656) goto weak; -+ } -+ } else { -+ if (n < 0x64646565) { -+ /* FE 01 FE 01 FE 01 FE 01 */ -+ if (n == 0x61616161) goto weak; -+ /* FE 1F FE 1F FE 0E FE 0E */ -+ if (n == 0x63636262) goto weak; -+ } else { -+ /* FE E0 FE E0 FE F1 FE F1 */ -+ if (n == 0x64646565) goto weak; -+ /* FE FE FE FE FE FE FE FE */ -+ if (n == 0x66666666) goto weak; -+ } -+ } -+ } -+ } -+ return 0; -+weak: -+ *flags |= CRYPTO_TFM_RES_WEAK_KEY; -+ return -EINVAL; -+} -+ -+EXPORT_SYMBOL(crypto_des_check_key); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("Key Check function for DES & DES3 Cipher Algorithms"); ---- /dev/null -+++ b/arch/ubicom32/crypto/des_ubicom32.c -@@ -0,0 +1,761 @@ -+/* -+ * arch/ubicom32/crypto/des_ubicom32.c -+ * Ubicom32 implementation of the DES Cipher Algorithm. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <crypto/algapi.h> -+#include <linux/init.h> -+#include <linux/module.h> -+ -+#include "crypto_ubicom32.h" -+extern int crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags); -+ -+#define DES_BLOCK_SIZE 8 -+#define DES_KEY_SIZE 8 -+ -+#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE) -+#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE -+ -+#define DES3_SUB_KEY(key, i) (((u8 *)key) + (i * DES_KEY_SIZE)) -+ -+enum des_ops { -+ DES_ENCRYPT, -+ DES_DECRYPT, -+ -+ DES3_EDE_ENCRYPT, -+ DES3_EDE_DECRYPT, -+ -+#ifdef DES3_EEE -+ DES3_EEE_ENCRYPT, -+ DES3_EEE_DECRYPT, -+#endif -+}; -+ -+struct ubicom32_des_ctx { -+ u8 key[3 * DES_KEY_SIZE]; -+ u32 ctrl; -+ int key_len; -+}; -+ -+static inline void des_hw_set_key(const u8 *key, u8 key_len) -+{ -+ /* -+ * HW 3DES is not tested yet, use DES just as ipOS -+ */ -+ DES_SET_KEY(key); -+} -+ -+static inline void des_hw_cipher(u8 *out, const u8 *in) -+{ -+ SEC_SET_INPUT_2W(in); -+ -+ asm volatile ( -+ " ; start DES by writing 0x38(SECURITY_BASE) \n\t" -+ " move.4 0x38(%0), #0x01 \n\t" -+ " pipe_flush 0 \n\t" -+ " \n\t" -+ " ; wait for the module to calculate the output \n\t" -+ " btst 0x04(%0), #0 \n\t" -+ " jmpne.f .-4 \n\t" -+ : -+ : "a" (SEC_BASE) -+ : "cc" -+ ); -+ -+ SEC_GET_OUTPUT_2W(out); -+} -+ -+ -+static void inline des3_hw_ede_encrypt(u8 *keys, u8 *out, const u8 *in) -+{ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE); -+ des_hw_cipher(out, in); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE); -+ des_hw_cipher(out, out); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE); -+ des_hw_cipher(out, out); -+} -+ -+static void inline des3_hw_ede_decrypt(u8 *keys, u8 *out, const u8 *in) -+{ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE); -+ des_hw_cipher(out, in); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE); -+ des_hw_cipher(out, out); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE); -+ des_hw_cipher(out, out); -+} -+ -+#ifdef DES3_EEE -+static void inline des3_hw_eee_encrypt(u8 *keys, u8 *out, const u8 *in) -+{ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 0), 2); -+ des_hw_cipher(out, in); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 1), 2); -+ des_hw_cipher(out, out); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 2), 2); -+ des_hw_cipher(out, out); -+} -+ -+static void inline des3_hw_eee_decrypt(u8 *keys, u8 *out, const u8 *in) -+{ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 2), 2); -+ des_hw_cipher(out, in); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 1), 2); -+ des_hw_cipher(out, out); -+ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(DES3_SUB_KEY(keys, 0), 2); -+ des_hw_cipher(out, out); -+} -+#endif -+ -+static int des_setkey(struct crypto_tfm *tfm, const u8 *key, -+ unsigned int keylen) -+{ -+ struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm); -+ u32 *flags = &tfm->crt_flags; -+ int ret; -+ -+ /* test if key is valid (not a weak key) */ -+ ret = crypto_des_check_key(key, keylen, flags); -+ if (ret == 0) { -+ memcpy(dctx->key, key, keylen); -+ dctx->key_len = keylen; -+ //dctx->ctrl = (keylen == DES_KEY_SIZE) ? SEC_ALG_DES : SEC_ALG_3DES -+ /* 2DES and 3DES are both implemented with DES hw function */ -+ dctx->ctrl = SEC_ALG_DES; -+ } -+ return ret; -+} -+ -+static inline void des_cipher_1b(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags) -+{ -+ const struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ hw_crypto_set_ctrl(uctx->ctrl | extra_flags); -+ -+ des_hw_set_key(uctx->key, uctx->key_len); -+ des_hw_cipher(out, in); -+ -+ hw_crypto_unlock(); -+} -+ -+static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) -+{ -+ des_cipher_1b(tfm, out, in, SEC_DIR_ENCRYPT); -+} -+ -+static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) -+{ -+ des_cipher_1b(tfm, out, in, SEC_DIR_DECRYPT); -+} -+ -+static struct crypto_alg des_alg = { -+ .cra_name = "des", -+ .cra_driver_name = "des-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER, -+ .cra_blocksize = DES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(des_alg.cra_list), -+ .cra_u = { -+ .cipher = { -+ .cia_min_keysize = DES_KEY_SIZE, -+ .cia_max_keysize = DES_KEY_SIZE, -+ .cia_setkey = des_setkey, -+ .cia_encrypt = des_encrypt, -+ .cia_decrypt = des_decrypt, -+ } -+ } -+}; -+ -+static void ecb_des_ciper_loop(u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ des_hw_cipher(out, in); -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void ecb_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ des3_hw_ede_encrypt(keys, out, in); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void ecb_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ des3_hw_ede_decrypt(keys, out, in); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+#ifdef DES3_EEE -+static void ecb_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ des3_hw_eee_encrypt(keys, out, in); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void ecb_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n) -+{ -+ while (likely(n)) { -+ des3_hw_eee_decrypt(keys, out, in); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+#endif -+ -+static inline void ecb_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, unsigned int n) -+{ -+ switch (op) { -+ case DES_ENCRYPT: -+ case DES_DECRYPT: -+ /* set the right algo, direction and key once */ -+ hw_crypto_set_ctrl(SEC_ALG_DES | (op == DES_ENCRYPT ? SEC_DIR_ENCRYPT : 0)); -+ des_hw_set_key(uctx->key, uctx->key_len); -+ ecb_des_ciper_loop(out, in, n); -+ break; -+ -+ case DES3_EDE_ENCRYPT: -+ ecb_des3_ede_encrypt_loop(uctx->key, out, in, n); -+ break; -+ -+ case DES3_EDE_DECRYPT: -+ ecb_des3_ede_decrypt_loop(uctx->key, out, in, n); -+ break; -+ -+#ifdef DES3_EEE -+ case DES3_EEE_ENCRYPT: -+ ecb_des3_eee_encrypt_loop(uctx->key, out, in, n); -+ break; -+ -+ case DES3_EEE_DECRYPT: -+ ecb_des3_eee_decrypt_loop(uctx->key, out, in, n); -+ break; -+#endif -+ } -+} -+ -+static inline void des_xor_2w(u32 *data, u32 *iv) -+{ -+ data[0] ^= iv[0]; -+ data[1] ^= iv[1]; -+} -+ -+static void cbc_des_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ while (likely(n)) { -+ des_xor_2w((u32 *)in, (u32 *)iv); -+ des_hw_cipher(out, in); -+ SEC_COPY_2W(iv, out); -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void cbc_des_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ u8 next_iv[DES_BLOCK_SIZE]; -+ while (likely(n)) { -+ SEC_COPY_2W(next_iv, in); -+ des_hw_cipher(out, in); -+ des_xor_2w((u32 *)out, (u32 *)iv); -+ SEC_COPY_2W(iv, next_iv); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void cbc_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ while (likely(n)) { -+ des_xor_2w((u32 *)in, (u32 *)iv); -+ des3_hw_ede_encrypt(keys, out, in); -+ SEC_COPY_2W(iv, out); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void cbc_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ u8 next_iv[DES_BLOCK_SIZE]; -+ while (likely(n)) { -+ SEC_COPY_2W(next_iv, in); -+ des3_hw_ede_decrypt(keys, out, in); -+ des_xor_2w((u32 *)out, (u32 *)iv); -+ SEC_COPY_2W(iv, next_iv); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+#ifdef DES3_EEE -+static void cbc_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ while (likely(n)) { -+ des_xor_2w((u32 *)in, (u32 *)iv); -+ des3_hw_eee_encrypt(keys, out, in); -+ SEC_COPY_2W(iv, out); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+ -+static void cbc_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ u8 next_iv[DES_BLOCK_SIZE]; -+ while (likely(n)) { -+ SEC_COPY_2W(next_iv, in); -+ des3_hw_eee_decrypt(keys, out, in); -+ des_xor_2w((u32 *)out, (u32 *)iv); -+ SEC_COPY_2W(iv, next_iv); -+ -+ out += DES_BLOCK_SIZE; -+ in += DES_BLOCK_SIZE; -+ n -= DES_BLOCK_SIZE; -+ } -+} -+#endif -+ -+static inline void cbc_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, u8 *iv, unsigned int n) -+{ -+ switch (op) { -+ case DES_ENCRYPT: -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT); -+ des_hw_set_key(uctx->key, uctx->key_len); -+ cbc_des_encrypt_loop(out, in, iv, n); -+ break; -+ -+ case DES_DECRYPT: -+ /* set the right algo, direction and key once */ -+ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT); -+ des_hw_set_key(uctx->key, uctx->key_len); -+ cbc_des_decrypt_loop(out, in, iv, n); -+ break; -+ -+ case DES3_EDE_ENCRYPT: -+ cbc_des3_ede_encrypt_loop(uctx->key, out, in, iv, n); -+ break; -+ -+ case DES3_EDE_DECRYPT: -+ cbc_des3_ede_decrypt_loop(uctx->key, out, in, iv, n); -+ break; -+ -+#ifdef DES3_EEE -+ case DES3_EEE_ENCRYPT: -+ cbc_des3_eee_encrypt_loop(uctx->key, out, in, iv, n); -+ break; -+ -+ case DES3_EEE_DECRYPT: -+ cbc_des3_eee_decrypt_loop(uctx->key, out, in, iv, n); -+ break; -+#endif -+ } -+} -+ -+static int des_cipher(struct blkcipher_desc *desc, struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes, u32 extra_flags, enum des_ops op) -+{ -+ struct ubicom32_des_ctx *uctx = crypto_blkcipher_ctx(desc->tfm); -+ int ret; -+ -+ struct blkcipher_walk walk; -+ blkcipher_walk_init(&walk, dst, src, nbytes); -+ ret = blkcipher_walk_virt(desc, &walk); -+ if (ret) { -+ return ret; -+ } -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ while ((nbytes = walk.nbytes)) { -+ /* only use complete blocks */ -+ unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1); -+ u8 *out = walk.dst.virt.addr; -+ u8 *in = walk.src.virt.addr; -+ -+ /* finish n/16 blocks */ -+ if (extra_flags & SEC_CBC_SET) { -+ cbc_des_cipher_n(uctx, op, out, in, walk.iv, n); -+ } else { -+ ecb_des_cipher_n(uctx, op, out, in, n); -+ } -+ -+ nbytes &= DES_BLOCK_SIZE - 1; -+ ret = blkcipher_walk_done(desc, &walk, nbytes); -+ } -+ -+ hw_crypto_unlock(); -+ return ret; -+} -+ -+static int ecb_des_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_ENCRYPT); -+} -+ -+static int ecb_des_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_DECRYPT); -+} -+ -+static struct crypto_alg ecb_des_alg = { -+ .cra_name = "ecb(des)", -+ .cra_driver_name = "ecb-des-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = DES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = DES_KEY_SIZE, -+ .max_keysize = DES_KEY_SIZE, -+ .setkey = des_setkey, -+ .encrypt = ecb_des_encrypt, -+ .decrypt = ecb_des_decrypt, -+ } -+ } -+}; -+ -+static int cbc_des_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_ENCRYPT); -+} -+ -+static int cbc_des_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, struct scatterlist *src, -+ unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_DECRYPT); -+} -+ -+static struct crypto_alg cbc_des_alg = { -+ .cra_name = "cbc(des)", -+ .cra_driver_name = "cbc-des-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = DES_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = DES_KEY_SIZE, -+ .max_keysize = DES_KEY_SIZE, -+ .ivsize = DES_BLOCK_SIZE, -+ .setkey = des_setkey, -+ .encrypt = cbc_des_encrypt, -+ .decrypt = cbc_des_decrypt, -+ } -+ } -+}; -+ -+/* -+ * RFC2451: -+ * -+ * For DES-EDE3, there is no known need to reject weak or -+ * complementation keys. Any weakness is obviated by the use of -+ * multiple keys. -+ * -+ * However, if the first two or last two independent 64-bit keys are -+ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the -+ * same as DES. Implementers MUST reject keys that exhibit this -+ * property. -+ * -+ */ -+static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, -+ unsigned int keylen) -+{ -+ int i, ret; -+ struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm); -+ const u8 *temp_key = key; -+ u32 *flags = &tfm->crt_flags; -+ -+ if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && -+ memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2], -+ DES_KEY_SIZE))) { -+ -+ *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED; -+ return -EINVAL; -+ } -+ for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) { -+ ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags); -+ if (ret < 0) -+ return ret; -+ } -+ memcpy(dctx->key, key, keylen); -+ dctx->ctrl = SEC_ALG_DES; //hw 3DES not working yet -+ dctx->key_len = keylen; -+ return 0; -+} -+ -+static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -+{ -+ struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ des3_hw_ede_encrypt(uctx->key, dst, src); -+ -+ hw_crypto_unlock(); -+} -+ -+static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -+{ -+ struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm); -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ des3_hw_ede_decrypt(uctx->key, dst, src); -+ -+ hw_crypto_unlock(); -+} -+ -+static struct crypto_alg des3_192_alg = { -+ .cra_name = "des3_ede", -+ .cra_driver_name = "des3_ede-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER, -+ .cra_blocksize = DES3_192_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list), -+ .cra_u = { -+ .cipher = { -+ .cia_min_keysize = DES3_192_KEY_SIZE, -+ .cia_max_keysize = DES3_192_KEY_SIZE, -+ .cia_setkey = des3_192_setkey, -+ .cia_encrypt = des3_192_encrypt, -+ .cia_decrypt = des3_192_decrypt, -+ } -+ } -+}; -+ -+static int ecb_des3_192_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_ENCRYPT); -+} -+ -+static int ecb_des3_192_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_DECRYPT); -+} -+ -+static struct crypto_alg ecb_des3_192_alg = { -+ .cra_name = "ecb(des3_ede)", -+ .cra_driver_name = "ecb-des3_ede-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = DES3_192_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT( -+ ecb_des3_192_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = DES3_192_KEY_SIZE, -+ .max_keysize = DES3_192_KEY_SIZE, -+ .setkey = des3_192_setkey, -+ .encrypt = ecb_des3_192_encrypt, -+ .decrypt = ecb_des3_192_decrypt, -+ } -+ } -+}; -+ -+static int cbc_des3_192_encrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_ENCRYPT); -+} -+ -+static int cbc_des3_192_decrypt(struct blkcipher_desc *desc, -+ struct scatterlist *dst, -+ struct scatterlist *src, unsigned int nbytes) -+{ -+ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_DECRYPT); -+} -+ -+static struct crypto_alg cbc_des3_192_alg = { -+ .cra_name = "cbc(des3_ede)", -+ .cra_driver_name = "cbc-des3_ede-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, -+ .cra_blocksize = DES3_192_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_des_ctx), -+ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1, -+ .cra_type = &crypto_blkcipher_type, -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT( -+ cbc_des3_192_alg.cra_list), -+ .cra_u = { -+ .blkcipher = { -+ .min_keysize = DES3_192_KEY_SIZE, -+ .max_keysize = DES3_192_KEY_SIZE, -+ .ivsize = DES3_192_BLOCK_SIZE, -+ .setkey = des3_192_setkey, -+ .encrypt = cbc_des3_192_encrypt, -+ .decrypt = cbc_des3_192_decrypt, -+ } -+ } -+}; -+ -+static int init(void) -+{ -+ int ret = 0; -+ -+ hw_crypto_init(); -+ -+ ret = crypto_register_alg(&des_alg); -+ if (ret) -+ goto des_err; -+ ret = crypto_register_alg(&ecb_des_alg); -+ if (ret) -+ goto ecb_des_err; -+ ret = crypto_register_alg(&cbc_des_alg); -+ if (ret) -+ goto cbc_des_err; -+ -+ ret = crypto_register_alg(&des3_192_alg); -+ if (ret) -+ goto des3_192_err; -+ ret = crypto_register_alg(&ecb_des3_192_alg); -+ if (ret) -+ goto ecb_des3_192_err; -+ ret = crypto_register_alg(&cbc_des3_192_alg); -+ if (ret) -+ goto cbc_des3_192_err; -+ -+out: -+ return ret; -+ -+cbc_des3_192_err: -+ crypto_unregister_alg(&ecb_des3_192_alg); -+ecb_des3_192_err: -+ crypto_unregister_alg(&des3_192_alg); -+des3_192_err: -+ crypto_unregister_alg(&cbc_des_alg); -+cbc_des_err: -+ crypto_unregister_alg(&ecb_des_alg); -+ecb_des_err: -+ crypto_unregister_alg(&des_alg); -+des_err: -+ goto out; -+} -+ -+static void __exit fini(void) -+{ -+ crypto_unregister_alg(&cbc_des3_192_alg); -+ crypto_unregister_alg(&ecb_des3_192_alg); -+ crypto_unregister_alg(&des3_192_alg); -+ crypto_unregister_alg(&cbc_des_alg); -+ crypto_unregister_alg(&ecb_des_alg); -+ crypto_unregister_alg(&des_alg); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+MODULE_ALIAS("des"); -+MODULE_ALIAS("des3_ede"); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms"); ---- /dev/null -+++ b/arch/ubicom32/crypto/Makefile -@@ -0,0 +1,36 @@ -+# -+# arch/ubicom32/crypto/Makefile -+# <TODO: Replace with short file description> -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+obj-$(CONFIG_CRYPTO_UBICOM32) += crypto_ubicom32.o -+obj-$(CONFIG_CRYPTO_AES_UBICOM32) += aes_ubicom32.o -+obj-$(CONFIG_CRYPTO_DES_UBICOM32) += des.o -+obj-$(CONFIG_CRYPTO_MD5_UBICOM32) += md5.o -+obj-$(CONFIG_CRYPTO_SHA1_UBICOM32) += sha1.o -+ -+des-y := des_ubicom32.o des_check_key.o -+md5-y := md5_ubicom32.o md5_ubicom32_asm.o -+sha1-y := sha1_ubicom32.o ---- /dev/null -+++ b/arch/ubicom32/crypto/md5_ubicom32_asm.S -@@ -0,0 +1,235 @@ -+/* -+ * arch/ubicom32/crypto/md5_ubicom32_asm.S -+ * MD5 (Message Digest 5) support for Ubicom32 v3 architecture -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#define __ASM__ -+#include <asm/ip5000.h> -+ -+#ifndef RP -+#define RP A5 -+#endif -+ -+;***************************************************************************************** -+; The function prototypes -+;***************************************************************************************** -+; void md5_ip5k_init(void) -+; void md5_ip5k_transform(u32_t *data_input) -+; void md5_get_digest(u32_t *digest) -+ -+;***************************************************************************************** -+; Inputs -+;*****************************************************************************************; -+; data_input is the pointer to the block of data over which the digest will be calculated. -+; It should be word aligned. -+; -+; digest is the pointer to the block of data into which the digest (the output) will be written. -+; It should be word aligned. -+; -+ -+;***************************************************************************************** -+; Outputs -+;***************************************************************************************** -+; None -+ -+;***************************************************************************************** -+; An: Address Registers -+;***************************************************************************************** -+#define an_digest A3 -+#define an_data_input A3 -+#define an_security_block A4 -+ -+;***************************************************************************************** -+; Hash Constants -+;***************************************************************************************** -+#define HASH_MD5_IN0 0x01234567 -+#define HASH_MD5_IN1 0x89abcdef -+#define HASH_MD5_IN2 0xfedcba98 -+#define HASH_MD5_IN3 0x76543210 -+ -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2 -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_MD5 ((1 << 4) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION) -+ -+;***************************************************************************************** -+; Hash related defines -+;***************************************************************************************** -+#define hash_control 0x00(an_security_block) -+#define hash_control_low 0x02(an_security_block) -+#define hash_status 0x04(an_security_block) -+ -+#define hash_input_0 0x30(an_security_block) -+#define hash_input_1 0x34(an_security_block) -+#define hash_input_2 0x38(an_security_block) -+#define hash_input_3 0x3c(an_security_block) -+#define hash_input_4 0x40(an_security_block) -+ -+#define hash_output_0 0x70(an_security_block) -+#define hash_output_0_low 0x72(an_security_block) -+#define hash_output_1 0x74(an_security_block) -+#define hash_output_1_low 0x76(an_security_block) -+#define hash_output_2 0x78(an_security_block) -+#define hash_output_2_low 0x7a(an_security_block) -+#define hash_output_3 0x7c(an_security_block) -+#define hash_output_3_low 0x7e(an_security_block) -+ -+;***************************************************************************************** -+; Assembly macros -+;***************************************************************************************** -+ ; C compiler reserves RP (A5) for return address during subroutine call. -+ ; Use RP to return to caller -+.macro call_return_macro -+ calli RP, 0(RP) -+.endm -+ -+#if 0 -+;***************************************************************************************** -+; void md5_ip5k_init(void) -+; initialize the output registers of the hash module -+; -+ ;.section .text.md5_ip5k_init,"ax",@progbits -+ .section .text -+ .global _md5_ip5k_init -+ .func md5_ip5k_init, _md5_ip5k_init -+ -+_md5_ip5k_init: -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5) -+ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5) -+ -+ movei hash_output_0, #%hi(HASH_MD5_IN0) -+ movei hash_output_0_low, #%lo(HASH_MD5_IN0) -+ -+ movei hash_output_1, #%hi(HASH_MD5_IN1) -+ movei hash_output_1_low, #%lo(HASH_MD5_IN1) -+ -+ movei hash_output_2, #%hi(HASH_MD5_IN2) -+ movei hash_output_2_low, #%lo(HASH_MD5_IN2) -+ -+ movei hash_output_3, #%hi(HASH_MD5_IN3) -+ movei hash_output_3_low, #%lo(HASH_MD5_IN3) -+ -+ call_return_macro -+ .endfunc -+#endif -+ -+;***************************************************************************************** -+; void md5_ip5k_init_digest(u32_t *hash_input) -+; initialize the output registers of the hash module -+ -+ ;.section .text.md5_ip5k_init_digest,"ax",@progbits -+ .section .text -+ .global _md5_ip5k_init_digest -+ .func md5_ip5k_init_digest, _md5_ip5k_init_digest -+ -+_md5_ip5k_init_digest: -+ movea an_data_input, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5) -+ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5) -+ -+ move.4 hash_output_0, (an_data_input)4++ -+ move.4 hash_output_1, (an_data_input)4++ -+ move.4 hash_output_2, (an_data_input)4++ -+ move.4 hash_output_3, (an_data_input)4++ -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+; void md5_ip5k_transform(u32_t *data_input) -+; performs intermediate transformation step for the hash calculation -+; -+ ;.sect .text.md5_ip5k_transform,"ax",@progbits -+ .section .text -+ .global _md5_ip5k_transform -+ .func md5_ip5k_transform, _md5_ip5k_transform -+ -+_md5_ip5k_transform: -+ movea an_data_input, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ ; Write the first 128bits (16 bytes) -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ pipe_flush 0 -+ -+md5_ip5k_transform_wait: -+ ; wait for the module to calculate the output hash -+ btst hash_status, #0 -+ jmpne.f md5_ip5k_transform_wait -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+; void md5_ip5k_get_digest(u32_t *digest) -+; Return the hash of the input data -+; -+ ;.sect .text.md5_get_digest,"ax",@progbits -+ .section .text -+ .global _md5_ip5k_get_digest -+ .func md5_ip5k_get_digest, _md5_ip5k_get_digest -+ -+_md5_ip5k_get_digest: -+ movea an_digest, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ ; we have finished -+ move.4 0(an_digest), hash_output_0 -+ move.4 4(an_digest), hash_output_1 -+ move.4 8(an_digest), hash_output_2 -+ move.4 12(an_digest), hash_output_3 -+ -+ call_return_macro -+ .endfunc -+ ---- /dev/null -+++ b/arch/ubicom32/crypto/md5_ubicom32.c -@@ -0,0 +1,200 @@ -+/* -+ * arch/ubicom32/crypto/md5_ubicom32.c -+ * Ubicom32 implementation of the MD5 Secure Hash Algorithm -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/crypto.h> -+ -+#include "crypto_ubicom32.h" -+ -+#define MD5_DIGEST_SIZE 16 -+#define MD5_BLOCK_SIZE 64 -+#define MD5_HASH_WORDS 4 -+ -+extern void _md5_ip5k_init_digest(u32_t *digest); -+extern void _md5_ip5k_transform(u32_t *data_input); -+extern void _md5_ip5k_get_digest(u32_t *digest); -+ -+struct ubicom32_md5_ctx { -+ u64 count; /* message length */ -+ u32 state[MD5_HASH_WORDS]; -+ u8 buf[2 * MD5_BLOCK_SIZE]; -+}; -+ -+static void md5_init(struct crypto_tfm *tfm) -+{ -+ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm); -+ mctx->state[0] = 0x01234567; -+ mctx->state[1] = 0x89abcdef; -+ mctx->state[2] = 0xfedcba98; -+ mctx->state[3] = 0x76543210; -+ -+ mctx->count = 0; -+} -+ -+static inline void _md5_process(u32 *digest, const u8 *data) -+{ -+ _md5_ip5k_transform((u32 *)data); -+} -+ -+static void md5_update(struct crypto_tfm *tfm, const u8 *data, -+ unsigned int len) -+{ -+ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm); -+ int index, clen; -+ -+ /* how much is already in the buffer? */ -+ index = mctx->count & 0x3f; -+ -+ mctx->count += len; -+ -+ if (index + len < MD5_BLOCK_SIZE) { -+ goto store_only; -+ } -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ /* init digest set ctrl register too */ -+ _md5_ip5k_init_digest(mctx->state); -+ -+ if (unlikely(index == 0 && SEC_ALIGNED(data))) { -+fast_process: -+ while (len >= MD5_BLOCK_SIZE) { -+ _md5_process(mctx->state, data); -+ data += MD5_BLOCK_SIZE; -+ len -= MD5_BLOCK_SIZE; -+ } -+ goto store; -+ } -+ -+ /* process one stored block */ -+ if (index) { -+ clen = MD5_BLOCK_SIZE - index; -+ memcpy(mctx->buf + index, data, clen); -+ _md5_process(mctx->state, mctx->buf); -+ data += clen; -+ len -= clen; -+ index = 0; -+ } -+ -+ if (likely(SEC_ALIGNED(data))) { -+ goto fast_process; -+ } -+ -+ /* process as many blocks as possible */ -+ while (len >= MD5_BLOCK_SIZE) { -+ memcpy(mctx->buf, data, MD5_BLOCK_SIZE); -+ _md5_process(mctx->state, mctx->buf); -+ data += MD5_BLOCK_SIZE; -+ len -= MD5_BLOCK_SIZE; -+ } -+ -+store: -+ _md5_ip5k_get_digest(mctx->state); -+ hw_crypto_unlock(); -+ -+store_only: -+ /* anything left? */ -+ if (len) -+ memcpy(mctx->buf + index , data, len); -+} -+ -+/* Add padding and return the message digest. */ -+static void md5_final(struct crypto_tfm *tfm, u8 *out) -+{ -+ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm); -+ u32 bits[2]; -+ unsigned int index, end; -+ -+ /* must perform manual padding */ -+ index = mctx->count & 0x3f; -+ end = (index < 56) ? MD5_BLOCK_SIZE : (2 * MD5_BLOCK_SIZE); -+ -+ /* start pad with 1 */ -+ mctx->buf[index] = 0x80; -+ -+ /* pad with zeros */ -+ index++; -+ memset(mctx->buf + index, 0x00, end - index - 8); -+ -+ /* append message length */ -+ bits[0] = mctx->count << 3; -+ bits[1] = mctx->count >> 29; -+ __cpu_to_le32s(bits); -+ __cpu_to_le32s(bits + 1); -+ -+ memcpy(mctx->buf + end - 8, &bits, sizeof(bits)); -+ -+ /* force to use the mctx->buf and ignore the partial buf */ -+ mctx->count = mctx->count & ~0x3f; -+ md5_update(tfm, mctx->buf, end); -+ -+ /* copy digest to out */ -+ memcpy(out, mctx->state, MD5_DIGEST_SIZE); -+ -+ /* wipe context */ -+ memset(mctx, 0, sizeof *mctx); -+} -+ -+static struct crypto_alg alg = { -+ .cra_name = "md5", -+ .cra_driver_name= "md5-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST, -+ .cra_blocksize = MD5_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_md5_ctx), -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(alg.cra_list), -+ .cra_u = { -+ .digest = { -+ .dia_digestsize = MD5_DIGEST_SIZE, -+ .dia_init = md5_init, -+ .dia_update = md5_update, -+ .dia_final = md5_final, -+ } -+ } -+}; -+ -+static int __init init(void) -+{ -+ hw_crypto_init(); -+ return crypto_register_alg(&alg); -+} -+ -+static void __exit fini(void) -+{ -+ crypto_unregister_alg(&alg); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+MODULE_ALIAS("md5"); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("MD5 Secure Hash Algorithm"); ---- /dev/null -+++ b/arch/ubicom32/crypto/sha1_ubicom32_asm.S -@@ -0,0 +1,244 @@ -+/* -+ * arch/ubicom32/crypto/sha1_ubicom32_asm.S -+ * SHA1 hash support for Ubicom32 architecture V3. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#define __ASM__ -+#include <asm/ip5000.h> -+ -+#ifndef RP -+#define RP A5 -+#endif -+ -+;***************************************************************************************** -+; The function prototype -+;***************************************************************************************** -+; void sha1_ip5k_init(void) -+; void sha1_ip5k_transform(u32_t *data_input) -+; void sha1_ip5k_output(u32_t *digest) -+ -+;***************************************************************************************** -+; Inputs -+;***************************************************************************************** -+; data_input is the pointer to the block of data over which the digest will be calculated. -+; It should be word aligned. -+; -+; digest is the pointer to the block of data into which the digest (the output) will be written. -+; It should be word aligned. -+; -+ -+;***************************************************************************************** -+; Outputs -+;***************************************************************************************** -+; None -+ -+;***************************************************************************************** -+; Hash Constants -+;***************************************************************************************** -+#define HASH_SHA1_IN0 0x67452301 -+#define HASH_SHA1_IN1 0xefcdab89 -+#define HASH_SHA1_IN2 0x98badcfe -+#define HASH_SHA1_IN3 0x10325476 -+#define HASH_SHA1_IN4 0xc3d2e1f0 -+ -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2 -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION) -+ -+;***************************************************************************************** -+; An: Address Registers -+;***************************************************************************************** -+#define an_digest a4 -+#define an_data_input a4 -+#define an_security_block a3 -+ -+;***************************************************************************************** -+; Hash related defines -+;***************************************************************************************** -+#define hash_control 0x00(an_security_block) -+#define hash_control_low 0x02(an_security_block) -+#define hash_status 0x04(an_security_block) -+ -+#define hash_input_0 0x30(an_security_block) -+#define hash_input_1 0x34(an_security_block) -+#define hash_input_2 0x38(an_security_block) -+#define hash_input_3 0x3c(an_security_block) -+#define hash_input_4 0x40(an_security_block) -+ -+#define hash_output_0 0x70(an_security_block) -+#define hash_output_0_low 0x72(an_security_block) -+#define hash_output_1 0x74(an_security_block) -+#define hash_output_1_low 0x76(an_security_block) -+#define hash_output_2 0x78(an_security_block) -+#define hash_output_2_low 0x7a(an_security_block) -+#define hash_output_3 0x7c(an_security_block) -+#define hash_output_3_low 0x7e(an_security_block) -+#define hash_output_4 0x80(an_security_block) -+#define hash_output_4_low 0x82(an_security_block) -+ -+;***************************************************************************************** -+; Assembly macros -+;***************************************************************************************** -+ ; C compiler reserves RP (A5) for return address during subroutine call. -+ ; Use RP to return to caller -+.macro call_return_macro -+ calli RP, 0(RP) -+.endm -+ -+;***************************************************************************************** -+; void sha1_ip5k_init(void) -+; initialize the output registers of the hash module -+ -+ ;.section .text.sha1_ip5k_init,"ax",@progbits -+ .section .ocm_text,"ax",@progbits -+ .global _sha1_ip5k_init -+ .func sha1_ip5k_init, _sha1_ip5k_init -+ -+_sha1_ip5k_init: -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1) -+ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1) -+ -+ movei hash_output_0, #%hi(HASH_SHA1_IN0) -+ movei hash_output_0_low, #%lo(HASH_SHA1_IN0) -+ -+ movei hash_output_1, #%hi(HASH_SHA1_IN1) -+ movei hash_output_1_low, #%lo(HASH_SHA1_IN1) -+ -+ movei hash_output_2, #%hi(HASH_SHA1_IN2) -+ movei hash_output_2_low, #%lo(HASH_SHA1_IN2) -+ -+ movei hash_output_3, #%hi(HASH_SHA1_IN3) -+ movei hash_output_3_low, #%lo(HASH_SHA1_IN3) -+ -+ movei hash_output_4, #%hi(HASH_SHA1_IN4) -+ movei hash_output_4_low, #%lo(HASH_SHA1_IN4) -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+; void sha1_ip5k_init_digest(u32_t *hash_input) -+; initialize the output registers of the hash module -+ -+ ;.section .text.sha1_ip5k_init_digest,"ax",@progbits -+ .section .ocm_text,"ax",@progbits -+ .global _sha1_ip5k_init_digest -+ .func sha1_ip5k_init_digest, _sha1_ip5k_init_digest -+ -+_sha1_ip5k_init_digest: -+ movea an_data_input, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1) -+ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1) -+ -+ move.4 hash_output_0, (an_data_input)4++ -+ move.4 hash_output_1, (an_data_input)4++ -+ move.4 hash_output_2, (an_data_input)4++ -+ move.4 hash_output_3, (an_data_input)4++ -+ move.4 hash_output_4, (an_data_input)4++ -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+; void sha1_ip5k_transform(u32_t *data_input) -+; performs intermediate transformation step for the hash calculation -+ -+ ;.section .text.sha1_ip5k_transform,"ax",@progbits -+ .section .ocm_text,"ax",@progbits -+ .global _sha1_ip5k_transform -+ .func sha1_ip5k_transform, _sha1_ip5k_transform -+ -+_sha1_ip5k_transform: -+ movea an_data_input, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ ; Write the first 128bits (16 bytes) -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ move.4 hash_input_0, (an_data_input)4++ -+ move.4 hash_input_1, (an_data_input)4++ -+ move.4 hash_input_2, (an_data_input)4++ -+ move.4 hash_input_3, (an_data_input)4++ -+ move.4 hash_input_4, D0 -+ -+ pipe_flush 0 -+ -+sha1_ip5k_transform_wait: -+ ; wait for the module to calculate the output hash -+ btst hash_status, #0 -+ jmpne.f sha1_ip5k_transform_wait -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+; void sha1_ip5k_output(u32_t *digest) -+; Return the hash of the input data -+ -+ ;.section .text.sha1_ip5k_output,"ax",@progbits -+ .section .ocm_text,"ax",@progbits -+ .global _sha1_ip5k_output -+ .func sha1_ip5k_output, _sha1_ip5k_output -+ -+_sha1_ip5k_output: -+ movea an_digest, D0 -+ -+ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS -+ -+ ; we have finished -+ move.4 0(an_digest), hash_output_0 -+ move.4 4(an_digest), hash_output_1 -+ move.4 8(an_digest), hash_output_2 -+ move.4 12(an_digest), hash_output_3 -+ move.4 16(an_digest), hash_output_4 -+ -+ call_return_macro -+ .endfunc -+ -+;***************************************************************************************** -+;END ;End of program code -+;***************************************************************************************** ---- /dev/null -+++ b/arch/ubicom32/crypto/sha1_ubicom32.c -@@ -0,0 +1,354 @@ -+/* -+ * arch/ubicom32/crypto/sha1_ubicom32.c -+ * Ubicom32 implementation of the SHA1 Secure Hash Algorithm. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/crypto.h> -+#include <crypto/sha.h> -+#include <asm/linkage.h> -+ -+#include "crypto_ubicom32.h" -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2 -+#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION) -+ -+struct ubicom32_sha1_ctx { -+ u64 count; /* message length */ -+ u32 state[5]; -+ u8 buf[2 * SHA1_BLOCK_SIZE]; -+}; -+ -+static inline void sha1_clear_2ws(u8 *buf, int wc) -+{ -+ asm volatile ( -+ "1: move.4 (%0)4++, #0 \n\t" -+ " move.4 (%0)4++, #0 \n\t" -+ " sub.4 %1, #2, %1 \n\t" -+ " jmple.f 1b \n\t" -+ : -+ : "a" (buf), "d" (wc) -+ : "cc" -+ ); -+} -+ -+/* only wipe out count, state, and 1st half of buf - 9 bytes at most */ -+#define sha1_wipe_out(sctx) sha1_clear_2ws((u8 *)sctx, 2 + 5 + 16 - 2) -+ -+static inline void sha1_init_digest(u32 *digest) -+{ -+ hw_crypto_set_ctrl(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1); -+ asm volatile ( -+ " ; move digests to hash_output regs \n\t" -+ " move.4 0x70(%0), 0x0(%1) \n\t" -+ " move.4 0x74(%0), 0x4(%1) \n\t" -+ " move.4 0x78(%0), 0x8(%1) \n\t" -+ " move.4 0x7c(%0), 0xc(%1) \n\t" -+ " move.4 0x80(%0), 0x10(%1) \n\t" -+ : -+ : "a" (SEC_BASE), "a" (digest) -+ ); -+} -+ -+static inline void sha1_transform_feed(const u8 *in) -+{ -+ asm volatile ( -+ " ; write the 1st 16 bytes \n\t" -+ " move.4 0x30(%0), 0x0(%1) \n\t" -+ " move.4 0x34(%0), 0x4(%1) \n\t" -+ " move.4 0x38(%0), 0x8(%1) \n\t" -+ " move.4 0x3c(%0), 0xc(%1) \n\t" -+ " move.4 0x40(%0), %1 \n\t" -+ " ; write the 2nd 16 bytes \n\t" -+ " move.4 0x30(%0), 0x10(%1) \n\t" -+ " move.4 0x34(%0), 0x14(%1) \n\t" -+ " move.4 0x38(%0), 0x18(%1) \n\t" -+ " move.4 0x3c(%0), 0x1c(%1) \n\t" -+ " move.4 0x40(%0), %1 \n\t" -+ " ; write the 3rd 16 bytes \n\t" -+ " move.4 0x30(%0), 0x20(%1) \n\t" -+ " move.4 0x34(%0), 0x24(%1) \n\t" -+ " move.4 0x38(%0), 0x28(%1) \n\t" -+ " move.4 0x3c(%0), 0x2c(%1) \n\t" -+ " move.4 0x40(%0), %1 \n\t" -+ " ; write the 4th 16 bytes \n\t" -+ " move.4 0x30(%0), 0x30(%1) \n\t" -+ " move.4 0x34(%0), 0x34(%1) \n\t" -+ " move.4 0x38(%0), 0x38(%1) \n\t" -+ " move.4 0x3c(%0), 0x3c(%1) \n\t" -+ " move.4 0x40(%0), %1 \n\t" -+ " pipe_flush 0 \n\t" -+ : -+ : "a"(SEC_BASE), "a"(in) -+ ); -+} -+ -+static inline void sha1_transform_wait(void) -+{ -+ asm volatile ( -+ " btst 0x04(%0), #0 \n\t" -+ " jmpne.f -4 \n\t" -+ : -+ : "a"(SEC_BASE) -+ : "cc" -+ ); -+} -+ -+static inline void sha1_output_digest(u32 *digest) -+{ -+ asm volatile ( -+ " move.4 0x0(%1), 0x70(%0) \n\t" -+ " move.4 0x4(%1), 0x74(%0) \n\t" -+ " move.4 0x8(%1), 0x78(%0) \n\t" -+ " move.4 0xc(%1), 0x7c(%0) \n\t" -+ " move.4 0x10(%1), 0x80(%0) \n\t" -+ : -+ : "a" (SEC_BASE), "a" (digest) -+ ); -+} -+ -+static __ocm_text void sha1_init(struct crypto_tfm *tfm) -+{ -+ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm); -+ -+ sctx->state[0] = SHA1_H0; -+ sctx->state[1] = SHA1_H1; -+ sctx->state[2] = SHA1_H2; -+ sctx->state[3] = SHA1_H3; -+ sctx->state[4] = SHA1_H4; -+ sctx->count = 0; -+} -+ -+static void __ocm_text sha1_update(struct crypto_tfm *tfm, const u8 *data, -+ unsigned int len) -+{ -+ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm); -+ int index, clen; -+ -+ /* how much is already in the buffer? */ -+ index = sctx->count & 0x3f; -+ -+ sctx->count += len; -+ -+ if (index + len < SHA1_BLOCK_SIZE) { -+ goto store_only; -+ } -+ -+ hw_crypto_lock(); -+ hw_crypto_check(); -+ -+ /* init digest set ctrl register too */ -+ sha1_init_digest(sctx->state); -+ -+ if (unlikely(index == 0 && SEC_ALIGNED(data))) { -+fast_process: -+#if CRYPTO_UBICOM32_LOOP_ASM -+ if (likely(len >= SHA1_BLOCK_SIZE)) { -+ register unsigned int cnt = len >> 6; // loop = len / 64; -+ sha1_transform_feed(data); -+ data += SHA1_BLOCK_SIZE; -+ -+ /* cnt is pre-decremented in the loop */ -+ asm volatile ( -+ "; while (--loop): work on 2nd block \n\t" -+ "1: add.4 %2, #-1, %2 \n\t" -+ " jmpeq.f 5f \n\t" -+ " \n\t" -+ " ; write the 1st 16 bytes \n\t" -+ " move.4 0x30(%1), (%0)4++ \n\t" -+ " move.4 0x34(%1), (%0)4++ \n\t" -+ " move.4 0x38(%1), (%0)4++ \n\t" -+ " move.4 0x3c(%1), (%0)4++ \n\t" -+ " ; can not kick off hw before it \n\t" -+ " ; is done with the prev block \n\t" -+ " \n\t" -+ " btst 0x04(%1), #0 \n\t" -+ " jmpne.f -4 \n\t" -+ " \n\t" -+ " ; tell hw to load 1st 16 bytes \n\t" -+ " move.4 0x40(%1), %2 \n\t" -+ " \n\t" -+ " ; write the 2nd 16 bytes \n\t" -+ " move.4 0x30(%1), (%0)4++ \n\t" -+ " move.4 0x34(%1), (%0)4++ \n\t" -+ " move.4 0x38(%1), (%0)4++ \n\t" -+ " move.4 0x3c(%1), (%0)4++ \n\t" -+ " move.4 0x40(%1), %2 \n\t" -+ " \n\t" -+ " ; write the 3rd 16 bytes \n\t" -+ " move.4 0x30(%1), (%0)4++ \n\t" -+ " move.4 0x34(%1), (%0)4++ \n\t" -+ " move.4 0x38(%1), (%0)4++ \n\t" -+ " move.4 0x3c(%1), (%0)4++ \n\t" -+ " move.4 0x40(%1), %2 \n\t" -+ " \n\t" -+ " ; write the 4th 16 bytes \n\t" -+ " move.4 0x30(%1), (%0)4++ \n\t" -+ " move.4 0x34(%1), (%0)4++ \n\t" -+ " move.4 0x38(%1), (%0)4++ \n\t" -+ " move.4 0x3c(%1), (%0)4++ \n\t" -+ " move.4 0x40(%1), %2 \n\t" -+ " \n\t" -+ "; no need flush, enough insts \n\t" -+ "; before next hw wait \n\t" -+ " \n\t" -+ "; go back to loop \n\t" -+ " jmpt 1b \n\t" -+ " \n\t" -+ "; wait hw for last block \n\t" -+ "5: btst 0x04(%1), #0 \n\t" -+ " jmpne.f -4 \n\t" -+ " \n\t" -+ : "+a" (data) -+ : "a"( SEC_BASE), "d" (cnt) -+ : "cc" -+ ); -+ -+ len = len & (64 - 1); -+ } -+#else -+ while (likely(len >= SHA1_BLOCK_SIZE)) { -+ sha1_transform_feed(data); -+ data += SHA1_BLOCK_SIZE; -+ len -= SHA1_BLOCK_SIZE; -+ sha1_transform_wait(); -+ } -+#endif -+ goto store; -+ } -+ -+ /* process one stored block */ -+ if (index) { -+ clen = SHA1_BLOCK_SIZE - index; -+ memcpy(sctx->buf + index, data, clen); -+ sha1_transform_feed(sctx->buf); -+ data += clen; -+ len -= clen; -+ index = 0; -+ sha1_transform_wait(); -+ } -+ -+ if (likely(SEC_ALIGNED(data))) { -+ goto fast_process; -+ } -+ -+ /* process as many blocks as possible */ -+ if (likely(len >= SHA1_BLOCK_SIZE)) { -+ memcpy(sctx->buf, data, SHA1_BLOCK_SIZE); -+ do { -+ sha1_transform_feed(sctx->buf); -+ data += SHA1_BLOCK_SIZE; -+ len -= SHA1_BLOCK_SIZE; -+ if (likely(len >= SHA1_BLOCK_SIZE)) { -+ memcpy(sctx->buf, data, SHA1_BLOCK_SIZE); -+ sha1_transform_wait(); -+ continue; -+ } -+ /* it is the last block */ -+ sha1_transform_wait(); -+ break; -+ } while (1); -+ } -+ -+store: -+ sha1_output_digest(sctx->state); -+ hw_crypto_unlock(); -+ -+store_only: -+ /* anything left? */ -+ if (len) -+ memcpy(sctx->buf + index , data, len); -+} -+ -+/* Add padding and return the message digest. */ -+static void __ocm_text sha1_final(struct crypto_tfm *tfm, u8 *out) -+{ -+ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm); -+ u64 bits; -+ unsigned int index, end; -+ -+ /* must perform manual padding */ -+ index = sctx->count & 0x3f; -+ end = (index < 56) ? SHA1_BLOCK_SIZE : (2 * SHA1_BLOCK_SIZE); -+ -+ /* start pad with 1 */ -+ sctx->buf[index] = 0x80; -+ -+ /* pad with zeros */ -+ index++; -+ memset(sctx->buf + index, 0x00, end - index - 8); -+ -+ /* append message length */ -+ bits = sctx->count << 3 ; -+ SEC_COPY_2W(sctx->buf + end - 8, &bits); -+ -+ /* force to use the sctx->buf and ignore the partial buf */ -+ sctx->count = sctx->count & ~0x3f; -+ sha1_update(tfm, sctx->buf, end); -+ -+ /* copy digest to out */ -+ SEC_COPY_5W(out, sctx->state); -+ -+ /* wipe context */ -+ sha1_wipe_out(sctx); -+} -+ -+static struct crypto_alg alg = { -+ .cra_name = "sha1", -+ .cra_driver_name= "sha1-ubicom32", -+ .cra_priority = CRYPTO_UBICOM32_PRIORITY, -+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST, -+ .cra_blocksize = SHA1_BLOCK_SIZE, -+ .cra_ctxsize = sizeof(struct ubicom32_sha1_ctx), -+ .cra_module = THIS_MODULE, -+ .cra_list = LIST_HEAD_INIT(alg.cra_list), -+ .cra_u = { -+ .digest = { -+ .dia_digestsize = SHA1_DIGEST_SIZE, -+ .dia_init = sha1_init, -+ .dia_update = sha1_update, -+ .dia_final = sha1_final, -+ } -+ } -+}; -+ -+static int __init init(void) -+{ -+ hw_crypto_init(); -+ return crypto_register_alg(&alg); -+} -+ -+static void __exit fini(void) -+{ -+ crypto_unregister_alg(&alg); -+} -+ -+module_init(init); -+module_exit(fini); -+ -+MODULE_ALIAS("sha1"); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm"); ---- /dev/null -+++ b/arch/ubicom32/include/asm/a.out.h -@@ -0,0 +1,47 @@ -+/* -+ * arch/ubicom32/include/asm/a.out.h -+ * Definitions for Ubicom32 a.out executable format. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_A_OUT_H -+#define _ASM_UBICOM32_A_OUT_H -+ -+struct exec -+{ -+ unsigned long a_info; /* Use macros N_MAGIC, etc for access */ -+ unsigned a_text; /* length of text, in bytes */ -+ unsigned a_data; /* length of data, in bytes */ -+ unsigned a_bss; /* length of uninitialized data area for file, in bytes */ -+ unsigned a_syms; /* length of symbol table data in file, in bytes */ -+ unsigned a_entry; /* start address */ -+ unsigned a_trsize; /* length of relocation info for text, in bytes */ -+ unsigned a_drsize; /* length of relocation info for data, in bytes */ -+}; -+ -+#define N_TRSIZE(a) ((a).a_trsize) -+#define N_DRSIZE(a) ((a).a_drsize) -+#define N_SYMSIZE(a) ((a).a_syms) -+ -+#endif /* _ASM_UBICOM32_A_OUT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/atomic.h -@@ -0,0 +1,352 @@ -+/* -+ * arch/ubicom32/include/asm/atomic.h -+ * Atomic operations definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_ATOMIC_H -+#define _ASM_UBICOM32_ATOMIC_H -+ -+#include <asm/system.h> -+#include <asm/ubicom32-common.h> -+#include <asm/types.h> -+ -+/* -+ * Most instructions on the Ubicom32 processor are atomic in that they -+ * execute in one clock cycle. However, Linux has several operations -+ * (e.g. compare and swap) which will require more than a single instruction -+ * to perform. To achieve this, the Ubicom32 processor uses a single -+ * global bit in a scratchpad register as a critical section lock. All -+ * atomic operations acquire this lock. -+ * -+ * NOTE: To AVOID DEADLOCK(s), the atomic lock must only be used for atomic -+ * operations or by the ldsr to avoid disabling a thread performing an atomic -+ * operation. -+ * -+ * Do not attempt to disable interrupts while holding the atomic operations -+ * lock or you will DEADLOCK the system. -+ */ -+ -+typedef struct { -+ volatile int counter; -+} atomic_t; -+ -+#define ATOMIC_INIT(i) { (i) } -+ -+/* -+ * __atomic_add() -+ * Add i to v and return the result. -+ */ -+static inline void __atomic_add(int i, atomic_t *v) -+{ -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ vt->counter += i; -+ __atomic_lock_release(); -+} -+ -+/* -+ * __atomic_sub() -+ * Subtract i from v and return the result. -+ */ -+static inline void __atomic_sub(int i, atomic_t *v) -+{ -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ vt->counter -= i; -+ __atomic_lock_release(); -+} -+ -+/* -+ * __atomic_add_return() -+ * Add i to v and return the result. -+ * -+ * The implementation here looks rather odd because we appear to be doing -+ * the addition twice. In fact that's exactly what we're doing but with -+ * the ubicom32 instruction set we can do the inner load and add with two -+ * instructions whereas generating both the atomic result and the "ret" -+ * result requires three instructions. The second add is generally only as -+ * costly as a move instruction and in cases where we compare the result -+ * with a constant the compiler can fold two constant values and do a -+ * single instruction, thus saving an instruction overall! -+ * -+ * At the worst we save one instruction inside the atomic lock. -+ */ -+static inline int __atomic_add_return(int i, atomic_t *v) -+{ -+ int ret; -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ ret = vt->counter; -+ vt->counter = ret + i; -+ __atomic_lock_release(); -+ -+ return ret + i; -+} -+ -+/* -+ * __atomic_sub_return() -+ * Subtract i from v and return the result. -+ * -+ * The implementation here looks rather odd because we appear to be doing -+ * the subtraction twice. In fact that's exactly what we're doing but with -+ * the ubicom32 instruction set we can do the inner load and sub with two -+ * instructions whereas generating both the atomic result and the "ret" -+ * result requires three instructions. The second sub is generally only as -+ * costly as a move instruction and in cases where we compare the result -+ * with a constant the compiler can fold two constant values and do a -+ * single instruction, thus saving an instruction overall! -+ * -+ * At the worst we save one instruction inside the atomic lock. -+ */ -+static inline int __atomic_sub_return(int i, atomic_t *v) -+{ -+ int ret; -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ ret = vt->counter; -+ vt->counter = ret - i; -+ __atomic_lock_release(); -+ -+ return ret - i; -+} -+ -+/* -+ * PUBLIC API FOR ATOMIC! -+ */ -+#define atomic_add(i,v) (__atomic_add( ((int)i),(v))) -+#define atomic_sub(i,v) (__atomic_sub( ((int)i),(v))) -+#define atomic_inc(v) (__atomic_add( 1,(v))) -+#define atomic_dec(v) (__atomic_sub( 1,(v))) -+#define atomic_add_return(i,v) (__atomic_add_return( ((int)i),(v))) -+#define atomic_sub_return(i,v) (__atomic_sub_return( ((int)i),(v))) -+#define atomic_inc_return(v) (__atomic_add_return( 1,(v))) -+#define atomic_dec_return(v) (__atomic_sub_return( 1,(v))) -+#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) -+#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) -+#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) -+#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0) -+ -+/* -+ * atomic_read() -+ * Acquire the atomic lock and read the variable. -+ */ -+static inline int atomic_read(const atomic_t *v) -+{ -+ int ret; -+ const atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ ret = vt->counter; -+ __atomic_lock_release(); -+ -+ return ret; -+} -+ -+/* -+ * atomic_set() -+ * Acquire the atomic lock and set the variable. -+ */ -+static inline void atomic_set(atomic_t *v, int i) -+{ -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ vt->counter = i; -+ __atomic_lock_release(); -+} -+ -+/* -+ * atomic_cmpxchg -+ * Acquire the atomic lock and exchange if current == old. -+ */ -+static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -+{ -+ int prev; -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ prev = vt->counter; -+ if (prev == old) { -+ vt->counter = new; -+ } -+ __atomic_lock_release(); -+ -+ return prev; -+} -+ -+/* -+ * atomic_xchg() -+ * Acquire the atomic lock and exchange values. -+ */ -+static inline int atomic_xchg(atomic_t *v, int new) -+{ -+ int prev; -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ prev = vt->counter; -+ vt->counter = new; -+ __atomic_lock_release(); -+ -+ return prev; -+} -+ -+/* -+ * atomic_add_unless() -+ * Acquire the atomic lock and add a unless the value is u. -+ */ -+static inline int atomic_add_unless(atomic_t *v, int a, int u) -+{ -+ int prev; -+ atomic_t *vt = v; -+ -+ __atomic_lock_acquire(); -+ prev = vt->counter; -+ if (prev != u) { -+ vt->counter += a; -+ __atomic_lock_release(); -+ return 1; -+ } -+ -+ __atomic_lock_release(); -+ return 0; -+} -+ -+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -+ -+#include <asm-generic/atomic.h> -+ -+/* -+ * The following is not a real function. The compiler should remove the function -+ * call as long as the user does not pass in a size that __xchg and __cmpxchg -+ * are not prepared for. If the user does pass in an unknown size, the user -+ * will get a link time error. -+ * -+ * The no return is to prevent a compiler error that can occur when dealing with -+ * uninitialized variables. Given that the function doesn't exist there is no -+ * net effect (and if it did it would not return). -+ */ -+extern void __xchg_called_with_bad_pointer(void) __attribute__((noreturn)); -+ -+/* -+ * __xchg() -+ * Xchange *ptr for x atomically. -+ * -+ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an -+ * atomic exchange instruction so we use the global atomic_lock. -+ */ -+static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size) -+{ -+ unsigned long ret; -+ -+ __atomic_lock_acquire(); -+ -+ switch (size) { -+ case 1: -+ ret = *(volatile unsigned char *)ptr; -+ *(volatile unsigned char *)ptr = x; -+ break; -+ -+ case 2: -+ ret = *(volatile unsigned short *)ptr; -+ *(volatile unsigned short *)ptr = x; -+ break; -+ -+ case 4: -+ ret = *(volatile unsigned int *)ptr; -+ *(volatile unsigned int *)ptr = x; -+ break; -+ -+ default: -+ __xchg_called_with_bad_pointer(); -+ break; -+ } -+ __atomic_lock_release(); -+ return ret; -+} -+ -+#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) -+ -+/* -+ * __cmpxchg() -+ * Compare and Xchange *ptr for x atomically. -+ * -+ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an -+ * atomic exchange instruction so we use the global atomic_lock. -+ */ -+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long next, int size) -+{ -+ unsigned long prev; -+ -+ __atomic_lock_acquire(); -+ switch (size) { -+ case 1: -+ prev = *(u8 *)ptr; -+ if (prev == old) { -+ *(u8 *)ptr = (u8)next; -+ } -+ break; -+ -+ case 2: -+ prev = *(u16 *)ptr; -+ if (prev == old) { -+ *(u16 *)ptr = (u16)next; -+ } -+ break; -+ -+ case 4: -+ prev = *(u32 *)ptr; -+ if (prev == old) { -+ *(u32 *)ptr = (u32)next; -+ } -+ break; -+ -+ default: -+ __xchg_called_with_bad_pointer(); -+ break; -+ } -+ __atomic_lock_release(); -+ return prev; -+} -+ -+/* -+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make -+ * them available. -+ */ -+#define cmpxchg_local(ptr, o, n) \ -+ ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr)))) -+ -+#define cmpxchg(ptr, o, n) __cmpxchg((ptr), (o), (n), sizeof(*(ptr))) -+ -+#define smp_mb__before_atomic_inc() asm volatile ("" : : : "memory") -+#define smp_mb__after_atomic_inc() asm volatile ("" : : : "memory") -+#define smp_mb__before_atomic_dec() asm volatile ("" : : : "memory") -+#define smp_mb__after_atomic_dec() asm volatile ("" : : : "memory") -+ -+#endif /* _ASM_UBICOM32_ATOMIC_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/audio_tio.h -@@ -0,0 +1,124 @@ -+/* -+ * arch/ubicom32/include/asm/audio_tio.h -+ * AudioTIO include file -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#ifndef _AUDIO_TIO_H -+#define _AUDIO_TIO_H -+ -+#include <asm/devtree.h> -+#include <asm/ubi32-pcm.h> -+ -+#define UBI32_AUDIO_INT_FLAG_MORE_SAMPLES 0x00000001 -+#define UBI32_AUDIO_INT_FLAG_COMMAND 0x00000002 -+ -+/* -+ * Commands the Primary OS sends to the audio device -+ */ -+enum ubi32_audio_command { -+ UBI32_AUDIO_CMD_NONE, -+ UBI32_AUDIO_CMD_START, -+ UBI32_AUDIO_CMD_STOP, -+ UBI32_AUDIO_CMD_PAUSE, -+ UBI32_AUDIO_CMD_RESUME, -+ UBI32_AUDIO_CMD_MUTE, -+ UBI32_AUDIO_CMD_UNMUTE, -+ UBI32_AUDIO_CMD_SETUP, -+ UBI32_AUDIO_CMD_ENABLE, -+ UBI32_AUDIO_CMD_DISABLE, -+}; -+ -+/* -+ * Flag bits passed in the registers -+ */ -+#define UBI32_CMD_SETUP_FLAG_LE (1 << 0) /* Use Little Endian Mode */ -+ -+/* -+ * Status bits that audio device can set to indicate reason -+ * for interrupting the Primary OS -+ */ -+#define UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST (1 << 0) /* Audio device needs samples in DMA0 for playback */ -+#define UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST (1 << 1) /* Audio device needs samples in DMA1 for playback */ -+ -+struct ubi32_audio_dma { -+ /* -+ * NOTE: The active flag shall only be SET by the producer and CLEARED -+ * by the consumer, NEVER the other way around. For playback, the -+ * Primary OS sets this flag and ipAudioTIO clears it. -+ * -+ * The producer shall not modify the ptr or ctr fields when the transfer -+ * is marked as active, as these are used by the consumer to do the -+ * transfer. -+ */ -+ volatile uint32_t active; /* Nonzero if data in ptr/ctr ready to be transferred */ -+ //volatile u32_t active; /* Nonzero if data in ptr/ctr ready to be transferred */ -+ volatile void *ptr; /* Pointer to data to be transferred */ -+ volatile uint32_t ctr; /* Counter: number of data units to transfer */ -+ //volatile u32_t ctr; /* Counter: number of data units to transfer */ -+}; -+ -+#define AUDIOTIONODE_CAP_BE (1 << 0) -+#define AUDIOTIONODE_CAP_LE (1 << 1) -+ -+/* -+ * Resource indices used to access IRQs via platform_get_resource -+ */ -+#define AUDIOTIO_MEM_RESOURCE 0 -+#define AUDIOTIO_TX_IRQ_RESOURCE 0 -+#define AUDIOTIO_RX_IRQ_RESOURCE 1 -+ -+#define AUDIOTIONODE_VERSION 5 -+struct audiotionode { -+ struct devtree_node dn; -+ uint32_t version; /* Version of this node */ -+ struct audiotioregs *regs; -+}; -+ -+#define AUDIOTIOREGS_VERSION 3 -+struct audiotioregs { -+ uint32_t version; -+ uint32_t caps; /* Capabilities of the driver */ -+ u32_t *sample_rates; /* Sample Rates supported by this driver */ -+ u32_t n_sample_rates; /* Number of sample rates supported by this driver */ -+ u32_t channel_mask; /* The channel configs supported by this driver (bit 1 = 1 channel, etc) */ -+ volatile uint32_t int_flags; /* Reason for interrupting audio device */ -+ volatile enum ubi32_audio_command command; /* Command from Primary OS */ -+ volatile uint32_t flags; /* Flag bits for this command */ -+ volatile uint32_t channels; /* Number of channels in stream */ -+ volatile uint32_t sample_rate; /* Sample rate */ -+ volatile uint32_t status; /* Status bits sent from AudioTIO to Primary OS */ -+ volatile void *current_read_pos; /* Position of next sample to be removed from Primary OS sample buffer */ -+ -+ /* -+ * These are the transfer requests. They are used in alternating -+ * order so that when ipAudioTIO is processing one request, the -+ * Primary OS can fill in the other one. -+ * -+ * NOTE: The active bit shall always be SET by the producer and -+ * CLEARED by the consumer, NEVER the other way around. -+ */ -+ struct ubi32_audio_dma playback_xfer_requests[2]; -+}; -+ -+extern struct platform_device * __init audio_tio_alloc(const char *driver_name, const char *node_name, int priv_size); -+ -+#define audio_tio_priv(pdev) (((struct ubi32pcm_platform_data *)(((struct platform_device *)(pdev))->dev.platform_data))->priv_data) -+#endif ---- /dev/null -+++ b/arch/ubicom32/include/asm/auxvec.h -@@ -0,0 +1,32 @@ -+/* -+ * arch/ubicom32/include/asm/auxvec.h -+ * Symbolic values for the entries in the auxiliary table -+ * put on the initial stack. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_AUXVEC_H -+#define _ASM_UBICOM32_AUXVEC_H -+ -+#endif /* _ASM_UBICOM32_AUXVEC_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/bitops.h -@@ -0,0 +1,171 @@ -+/* -+ * arch/ubicom32/include/asm/bitops.h -+ * Bit manipulation definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_BITOPS_H -+#define _ASM_UBICOM32_BITOPS_H -+ -+/* -+ * Copyright 1992, Linus Torvalds. -+ */ -+ -+#include <linux/compiler.h> -+#include <asm/byteorder.h> /* swab32 */ -+ -+#ifdef __KERNEL__ -+ -+#ifndef _LINUX_BITOPS_H -+#error only <linux/bitops.h> can be included directly -+#endif -+ -+#include <asm-generic/bitops/ffs.h> -+#include <asm-generic/bitops/__ffs.h> -+ -+#include <asm-generic/bitops/sched.h> -+#include <asm-generic/bitops/ffz.h> -+ -+#include <asm/ubicom32-common.h> -+ -+static inline void set_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ *p |= mask; -+ __atomic_lock_release(); -+} -+ -+static inline void clear_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ *p &= ~mask; -+ __atomic_lock_release(); -+} -+ -+/* -+ * clear_bit() doesn't provide any barrier for the compiler. -+ */ -+#define smp_mb__before_clear_bit() barrier() -+#define smp_mb__after_clear_bit() barrier() -+ -+static inline void change_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ *p ^= mask; -+ __atomic_lock_release(); -+} -+ -+static inline int test_and_set_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned int res; -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ res = *p; -+ *p = res | mask; -+ __atomic_lock_release(); -+ -+ return res & mask; -+} -+ -+static inline int test_and_clear_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned int res; -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ res = *p; -+ *p = res & ~mask; -+ __atomic_lock_release(); -+ -+ return res & mask; -+} -+ -+static inline int test_and_change_bit(int bit, volatile unsigned long *p) -+{ -+ unsigned int res; -+ unsigned long mask = 1UL << (bit & 31); -+ -+ p += bit >> 5; -+ -+ __atomic_lock_acquire(); -+ res = *p; -+ *p = res ^ mask; -+ __atomic_lock_release(); -+ -+ return res & mask; -+} -+ -+#include <asm-generic/bitops/non-atomic.h> -+ -+/* -+ * This routine doesn't need to be atomic. -+ */ -+static inline int __constant_test_bit(int nr, const volatile unsigned long *addr) -+{ -+ return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0; -+} -+ -+static inline int __test_bit(int nr, const volatile unsigned long *addr) -+{ -+ int * a = (int *) addr; -+ int mask; -+ -+ a += nr >> 5; -+ mask = 1 << (nr & 0x1f); -+ return ((mask & *a) != 0); -+} -+ -+#define test_bit(nr,addr) (__builtin_constant_p(nr) ? __constant_test_bit((nr),(addr)) : __test_bit((nr),(addr))) -+ -+#include <asm-generic/bitops/find.h> -+#include <asm-generic/bitops/hweight.h> -+#include <asm-generic/bitops/lock.h> -+ -+#include <asm-generic/bitops/ext2-non-atomic.h> -+#include <asm-generic/bitops/ext2-atomic.h> -+#include <asm-generic/bitops/minix.h> -+ -+#endif /* __KERNEL__ */ -+ -+#include <asm-generic/bitops/fls.h> -+#include <asm-generic/bitops/fls64.h> -+ -+#endif /* _ASM_UBICOM32_BITOPS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/board.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/board.h -+ * Board init and revision definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_BOARD_H -+#define _ASM_UBICOM32_BOARD_H -+ -+extern const char *board_get_revision(void); -+extern void __init board_init(void); -+ -+#endif /* _ASM_UBICOM32_BOARD_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/bootargs.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/bootargs.h -+ * Kernel command line via the devtree API. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_BOOTARGS_H -+#define _ASM_UBICOM32_BOOTARGS_H -+ -+extern const char *bootargs_get_cmdline(void); -+extern void __init bootargs_init(void); -+ -+#endif /* _ASM_UBICOM32_BOOTARGS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/bootinfo.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/bootinfo.h -+ * Definitions of firmware boot parameters passed to the kernel. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_BOOTINFO_H -+#define _ASM_UBICOM32_BOOTINFO_H -+ -+/* Nothing for ubicom32 */ -+ -+#endif /* _ASM_UBICOM32_BOOTINFO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/bug.h -@@ -0,0 +1,53 @@ -+/* -+ * arch/ubicom32/include/asm/bug.h -+ * Generic bug.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_BUG_H -+#define _ASM_UBICOM32_BUG_H -+ -+#include <linux/kernel.h> -+#include <asm/thread.h> -+ -+#if defined(CONFIG_STOP_ON_BUG) -+/* -+ * __BUG_ON() -+ * Stall all threads to enable debugging. -+ */ -+static inline void __BUG_ON(unsigned long c) -+{ -+ if (unlikely(c)) { -+ THREAD_STALL; -+ } -+ return; -+} -+ -+#define BUG_ON(c) __BUG_ON((unsigned long)(c)) -+#define HAVE_ARCH_BUG_ON -+#endif -+ -+#include <asm-generic/bug.h> -+ -+#endif /* _ASM_UBICOM32_BUG_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/bugs.h -@@ -0,0 +1,44 @@ -+/* -+ * arch/ubicom32/include/asm/bugs.h -+ * Definition of check_bugs() for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1994 Linus Torvalds -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+/* -+ * This is included by init/main.c to check for architecture-dependent bugs. -+ * -+ * Needs: -+ * void check_bugs(void); -+ */ -+ -+#ifndef _ASM_UBICOM32_BUGS_H -+#define _ASM_UBICOM32_BUGS_H -+ -+static void check_bugs(void) -+{ -+} -+ -+#endif /* _ASM_UBICOM32_BUGS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/byteorder.h -@@ -0,0 +1,48 @@ -+/* -+ * arch/ubicom32/include/asm/byteorder.h -+ * Byte order swapping utility routines. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_BYTEORDER_H -+#define _ASM_UBICOM32_BYTEORDER_H -+ -+#include <linux/types.h> -+ -+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) -+# define __BYTEORDER_HAS_U64__ -+# define __SWAB_64_THRU_32__ -+#endif -+ -+#if defined(IP7000) || defined(IP7000_REV2) -+ -+#define __arch__swab16 __builtin_ubicom32_swapb_2 -+#define __arch__swab32 __builtin_ubicom32_swapb_4 -+ -+#endif /* IP7000 */ -+ -+#include <linux/byteorder/big_endian.h> -+ -+#endif /* _ASM_UBICOM32_BYTEORDER_H */ -+ ---- /dev/null -+++ b/arch/ubicom32/include/asm/cachectl.h -@@ -0,0 +1,39 @@ -+/* -+ * arch/ubicom32/include/asm/cachectl.h -+ * Ubicom32 cache control definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CACHECTL_H -+#define _ASM_UBICOM32_CACHECTL_H -+ -+#include <asm/ip5000.h> -+ -+/* -+ * mem_cache_control() -+ * Special cache control operation -+ */ -+extern void mem_cache_control(unsigned long cc, unsigned long begin_addr, unsigned long end_addr, unsigned long op); -+ -+#endif /* _ASM_UBICOM32_CACHECTL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/cacheflush.h -@@ -0,0 +1,104 @@ -+/* -+ * arch/ubicom32/include/asm/cacheflush.h -+ * Cache flushing definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CACHEFLUSH_H -+#define _ASM_UBICOM32_CACHEFLUSH_H -+ -+/* -+ * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> -+ */ -+#include <linux/mm.h> -+#include <asm/cachectl.h> -+#include <asm/ip5000.h> -+ -+#define flush_cache_all() __flush_cache_all() -+#define flush_cache_mm(mm) do { } while (0) -+#define flush_cache_dup_mm(mm) do { } while (0) -+#define flush_cache_range(vma, start, end) __flush_cache_all() -+#define flush_cache_page(vma, vmaddr) do { } while (0) -+#define flush_dcache_page(page) do { } while (0) -+#define flush_dcache_mmap_lock(mapping) do { } while (0) -+#define flush_dcache_mmap_unlock(mapping) do { } while (0) -+ -+#define flush_dcache_range(start, end) \ -+do { \ -+ /* Flush the data cache and invalidate the I cache. */ \ -+ local_irq_disable(); \ -+ mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR); \ -+ mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR); \ -+ local_irq_enable(); \ -+} while (0) -+ -+#define flush_icache_range(start, end) \ -+do { \ -+ /* Flush the data cache and invalidate the I cache. */ \ -+ local_irq_disable(); \ -+ mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR); \ -+ mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR); \ -+ local_irq_enable(); \ -+} while (0) -+ -+#define flush_icache_page(vma,pg) do { } while (0) -+#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) -+#define flush_cache_vmap(start, end) do { } while (0) -+#define flush_cache_vunmap(start, end) do { } while (0) -+ -+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -+ memcpy(dst, src, len) -+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ -+ memcpy(dst, src, len) -+ -+/* -+ * Cache handling for IP5000 -+ */ -+extern inline void mem_cache_invalidate_all(unsigned long cc) -+{ -+ asm volatile ( -+ " bset "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)" \n\t" -+ " nop \n\t" -+ " bclr "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)" \n\t" -+ " pipe_flush 0 \n\t" -+ : -+ : "a"(cc) -+ : "cc" -+ ); -+} -+ -+static inline void __flush_cache_all(void) -+{ -+ /* -+ * Flush Icache -+ */ -+ mem_cache_invalidate_all(ICCR_BASE); -+ -+ /* -+ * Flush Dcache -+ */ -+ mem_cache_invalidate_all(DCCR_BASE); -+} -+ -+#endif /* _ASM_UBICOM32_CACHEFLUSH_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/cache.h -@@ -0,0 +1,40 @@ -+/* -+ * arch/ubicom32/include/asm/cache.h -+ * Cache line definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CACHE_H -+#define _ASM_UBICOM32_CACHE_H -+ -+/* -+ * bytes per L1 cache line -+ */ -+#define L1_CACHE_SHIFT 5 -+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+ -+#define __cacheline_aligned -+#define ____cacheline_aligned -+ -+#endif /* _ASM_UBICOM32_CACHE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/checksum.h -@@ -0,0 +1,149 @@ -+/* -+ * arch/ubicom32/include/asm/checksum.h -+ * Checksum utilities for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CHECKSUM_H -+#define _ASM_UBICOM32_CHECKSUM_H -+ -+#include <linux/in6.h> -+ -+/* -+ * computes the checksum of a memory block at buff, length len, -+ * and adds in "sum" (32-bit) -+ * -+ * returns a 32-bit number suitable for feeding into itself -+ * or csum_tcpudp_magic -+ * -+ * this function must be called with even lengths, except -+ * for the last fragment, which may be odd -+ * -+ * it's best to have buff aligned on a 32-bit boundary -+ */ -+__wsum csum_partial(const void *buff, int len, __wsum sum); -+ -+/* -+ * the same as csum_partial, but copies from src while it -+ * checksums -+ * -+ * here even more important to align src and dst on a 32-bit (or even -+ * better 64-bit) boundary -+ */ -+ -+__wsum csum_partial_copy_nocheck(const void *src, void *dst, -+ int len, __wsum sum); -+ -+ -+/* -+ * the same as csum_partial_copy, but copies from user space. -+ * -+ * here even more important to align src and dst on a 32-bit (or even -+ * better 64-bit) boundary -+ */ -+ -+extern __wsum csum_partial_copy_from_user(const void __user *src, -+ void *dst, int len, __wsum sum, int *csum_err); -+ -+__sum16 ip_fast_csum(const void *iph, unsigned int ihl); -+ -+/* -+ * Fold a partial checksum -+ */ -+ -+static inline __sum16 csum_fold(__wsum sum) -+{ -+ asm volatile ( -+ " lsr.4 d15, %0, #16 \n\t" -+ " bfextu %0, %0, #16 \n\t" -+ " add.4 %0, d15, %0 \n\t" -+ " lsr.4 d15, %0, #16 \n\t" -+ " bfextu %0, %0, #16 \n\t" -+ " add.4 %0, d15, %0 \n\t" -+ : "=&d" (sum) -+ : "0"(sum) -+ : "d15" -+ ); -+ return (__force __sum16)~sum; -+} -+ -+ -+/* -+ * computes the checksum of the TCP/UDP pseudo-header -+ * returns a 16-bit checksum, already complemented -+ */ -+ -+static inline __wsum -+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, -+ unsigned short proto, __wsum sum) -+{ -+ asm volatile ( -+ " add.4 %0, %2, %0 \n\t" -+ " addc %0, %3, %0 \n\t" -+ " addc %0, %4, %0 \n\t" -+ " addc %0, %5, %0 \n\t" -+ " addc %0, #0, %0 \n\t" -+ : "=&d" (sum) -+ : "0"(sum), "r" (saddr), "r" (daddr), "r" (len), "r"(proto) -+ ); -+ return sum; -+} -+ -+static inline __sum16 -+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len, -+ unsigned short proto, __wsum sum) -+{ -+ return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); -+} -+ -+/* -+ * this routine is used for miscellaneous IP-like checksums, mainly -+ * in icmp.c -+ */ -+extern __sum16 ip_compute_csum(const void *buff, int len); -+ -+#define _HAVE_ARCH_IPV6_CSUM -+ -+static __inline__ __sum16 -+csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr, -+ __u32 len, unsigned short proto, __wsum sum) -+{ -+ asm volatile ( -+ " add.4 %0, 0(%2), %0 \n\t" -+ " addc %0, 4(%2), %0 \n\t" -+ " addc %0, 8(%2), %0 \n\t" -+ " addc %0, 12(%2), %0 \n\t" -+ " addc %0, 0(%3), %0 \n\t" -+ " addc %0, 4(%3), %0 \n\t" -+ " addc %0, 8(%3), %0 \n\t" -+ " addc %0, 12(%3), %0 \n\t" -+ " addc %0, %4, %0 \n\t" -+ " addc %0, #0, %0 \n\t" -+ : "=&d" (sum) -+ : "0" (sum), "a" (saddr), "a" (daddr), "d" (len + proto) -+ ); -+ return csum_fold(sum); -+} -+ -+#endif /* _ASM_UBICOM32_CHECKSUM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/cpu.h -@@ -0,0 +1,45 @@ -+/* -+ * arch/ubicom32/include/asm/cpu.h -+ * CPU definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004-2005 ARM Ltd. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CPU_H -+#define _ASM_UBICOM32_CPU_H -+ -+#include <linux/percpu.h> -+ -+struct cpuinfo_ubicom32 { -+ unsigned long tid; /* Hardware thread number */ -+ -+#ifdef CONFIG_SMP -+ volatile unsigned long ipi_pending; /* Bit map of operations to execute */ -+ unsigned long ipi_count; /* Number of IPI(s) taken on this cpu */ -+#endif -+}; -+ -+DECLARE_PER_CPU(struct cpuinfo_ubicom32, cpu_data); -+ -+#endif /* _ASM_UBICOM32_CPU_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/cputime.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/cputime.h -+ * Generic cputime.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CPUTIME_H -+#define _ASM_UBICOM32_CPUTIME_H -+ -+#include <asm-generic/cputime.h> -+ -+#endif /* _ASM_UBICOM32_CPUTIME_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/current.h -@@ -0,0 +1,44 @@ -+/* -+ * arch/ubicom32/include/asm/current.h -+ * Definition of get_current() for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * (C) Copyright 2000, Lineo, David McCullough <davidm@uclinux.org> -+ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_CURRENT_H -+#define _ASM_UBICOM32_CURRENT_H -+ -+#include <linux/thread_info.h> -+ -+struct task_struct; -+ -+static inline struct task_struct *get_current(void) -+{ -+ return(current_thread_info()->task); -+} -+ -+#define current get_current() -+ -+#endif /* _ASM_UBICOM32_CURRENT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/delay.h -@@ -0,0 +1,75 @@ -+/* -+ * arch/ubicom32/include/asm/delay.h -+ * Definition of delay routines for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_DELAY_H -+#define _ASM_UBICOM32_DELAY_H -+ -+#include <asm/param.h> -+#include <asm/ip5000.h> -+ -+static inline void __delay(unsigned long loops) -+{ -+ if (loops == 0) { -+ return; -+ } -+ -+ asm volatile ( -+ "1: add.4 %0, #-1, %0 \n\t" -+ " jmpne.t 1b \n\t" -+ : "+d" (loops) -+ ); -+} -+ -+/* -+ * Ubicom32 processor uses fixed 12MHz external OSC. -+ * So we use that as reference to count 12 cycles/us -+ */ -+ -+extern unsigned long loops_per_jiffy; -+ -+static inline void _udelay(unsigned long usecs) -+{ -+#if defined(CONFIG_UBICOM32_V4) || defined(CONFIG_UBICOM32_V3) -+ asm volatile ( -+ " add.4 d15, 0(%0), %1 \n\t" -+ " sub.4 #0, 0(%0), d15 \n\t" -+ " jmpmi.w.f .-4 \n\t" -+ : -+ : "a"(TIMER_BASE + TIMER_MPTVAL), "d"(usecs * (12000000/1000000)) -+ : "d15" -+ ); -+#else -+ BUG(); -+#endif -+} -+ -+/* -+ * Moved the udelay() function into library code, no longer inlined. -+ */ -+extern void udelay(unsigned long usecs); -+ -+#endif /* _ASM_UBICOM32_DELAY_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/device.h -@@ -0,0 +1,35 @@ -+/* -+ * arch/ubicom32/include/asm/device.h -+ * Generic device.h for Ubicom32 architecture. -+ * -+ * Used for arch specific extensions to struct device -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_DEVICE_H -+#define _ASM_UBICOM32_DEVICE_H -+ -+#include <asm-generic/device.h> -+ -+#endif /* _ASM_UBICOM32_DEVICE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/devtree.h -@@ -0,0 +1,52 @@ -+/* -+ * arch/ubicom32/include/asm/devtree.h -+ * Device Tree Header File (Shared between ultra and the Host OS) -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_DEVTREE_H -+#define _ASM_UBICOM32_DEVTREE_H -+ -+#define DEVTREE_MAX_NAME 32 -+#define DEVTREE_IRQ_NONE 0xff -+#define DEVTREE_IRQ_DONTCARE 0xff -+#define DEVTREE_NODE_MAGIC 0x10203040 -+ -+struct devtree_node { -+ struct devtree_node *next; -+ unsigned char sendirq; -+ unsigned char recvirq; -+ char name[DEVTREE_MAX_NAME]; -+ unsigned int magic; -+}; -+ -+extern struct devtree_node *devtree; -+extern struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq); -+extern struct devtree_node *devtree_find_node(const char *str); -+extern struct devtree_node *devtree_find_next(struct devtree_node **cur); -+extern int devtree_irq(struct devtree_node *dn, unsigned char *sendirq, unsigned char *recvirq); -+extern void devtree_print(void); -+ -+#endif /* _ASM_UBICOM32_DEVTREE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/div64.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/div64.h -+ * Generic div64.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_DIV64_H -+#define _ASM_UBICOM32_DIV64_H -+ -+#include <asm-generic/div64.h> -+ -+#endif /* _ASM_UBICOM32_DIV64_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/dma.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/dma.h -+ * DMA definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_DMA_H -+#define _ASM_UBICOM32_DMA_H -+ -+/* Nothing so far */ -+#define MAX_DMA_ADDRESS 0x00 /* This is quite suspicious */ -+ -+#endif /* _ASM_UBICOM32_DMA_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/dma-mapping.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/dma-mapping.h -+ * Generic dma-mapping.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_DMA_MAPPING_H -+#define _ASM_UBICOM32_DMA_MAPPING_H -+ -+#include <linux/scatterlist.h> -+#include <asm-generic/dma-mapping.h> -+ -+#endif /* _ASM_UBICOM32_DMA_MAPPING_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/elf.h -@@ -0,0 +1,167 @@ -+/* -+ * arch/ubicom32/include/asm/elf.h -+ * Definitions for elf executable format for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_ELF_H -+#define _ASM_UBICOM32_ELF_H -+ -+/* -+ * ELF register definitions.. -+ */ -+ -+#include <asm/ptrace.h> -+#include <asm/user.h> -+ -+/* -+ * Processor specific flags for the ELF header e_flags field. -+ */ -+#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */ -+#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */ -+#define EF_UBICOM32_PIC 0x80000000 /* -fpic */ -+#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */ -+ -+/* -+ * Ubicom32 ELF relocation types -+ */ -+#define R_UBICOM32_NONE 0 -+#define R_UBICOM32_16 1 -+#define R_UBICOM32_32 2 -+#define R_UBICOM32_LO16 3 -+#define R_UBICOM32_HI16 4 -+#define R_UBICOM32_21_PCREL 5 -+#define R_UBICOM32_24_PCREL 6 -+#define R_UBICOM32_HI24 7 -+#define R_UBICOM32_LO7_S 8 -+#define R_UBICOM32_LO7_2_S 9 -+#define R_UBICOM32_LO7_4_S 10 -+#define R_UBICOM32_LO7_D 11 -+#define R_UBICOM32_LO7_2_D 12 -+#define R_UBICOM32_LO7_4_D 13 -+#define R_UBICOM32_32_HARVARD 14 -+#define R_UBICOM32_LO7_CALLI 15 -+#define R_UBICOM32_LO16_CALLI 16 -+#define R_UBICOM32_GOT_HI24 17 -+#define R_UBICOM32_GOT_LO7_S 18 -+#define R_UBICOM32_GOT_LO7_2_S 19 -+#define R_UBICOM32_GOT_LO7_4_S 20 -+#define R_UBICOM32_GOT_LO7_D 21 -+#define R_UBICOM32_GOT_LO7_2_D 22 -+#define R_UBICOM32_GOT_LO7_4_D 23 -+#define R_UBICOM32_FUNCDESC_GOT_HI24 24 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30 -+#define R_UBICOM32_GOT_LO7_CALLI 31 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32 -+#define R_UBICOM32_FUNCDESC_VALUE 33 -+#define R_UBICOM32_FUNCDESC 34 -+#define R_UBICOM32_GOTOFFSET_LO 35 -+#define R_UBICOM32_GOTOFFSET_HI 36 -+#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37 -+#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38 -+#define R_UBICOM32_GNU_VTINHERIT 200 -+#define R_UBICOM32_GNU_VTENTRY 201 -+ -+typedef unsigned long elf_greg_t; -+ -+#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) -+typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -+ -+typedef struct user_ubicom32fp_struct elf_fpregset_t; -+ -+/* -+ * This is used to ensure we don't load something for the wrong architecture. -+ */ -+#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32) -+ -+#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC) -+ -+#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC) -+ -+/* -+ * These are used to set parameters in the core dumps. -+ */ -+#define ELF_CLASS ELFCLASS32 -+#define ELF_DATA ELFDATA2MSB -+#define ELF_ARCH EM_UBICOM32 -+ -+/* For SVR4/m68k the function pointer to be registered with `atexit' is -+ passed in %a1. Although my copy of the ABI has no such statement, it -+ is actually used on ASV. */ -+#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 -+ -+#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, \ -+ _dynamic_addr) \ -+ do { \ -+ _regs->dn[1] = _exec_map_addr; \ -+ _regs->dn[2] = _interp_map_addr; \ -+ _regs->dn[3] = _dynamic_addr; \ -+ _regs->an[1] = 0; /* dl_fini will be set by ldso */ \ -+ } while (0) -+ -+#define USE_ELF_CORE_DUMP -+#define ELF_EXEC_PAGESIZE 4096 -+ -+#ifdef __KERNEL__ -+#ifdef CONFIG_UBICOM32_V4 -+#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V4) -+#elif defined CONFIG_UBICOM32_V3 -+#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V3) -+#else -+#error Unknown/Unsupported ubicom32 architecture. -+#endif -+#endif -+ -+/* This is the location that an ET_DYN program is loaded if exec'ed. Typical -+ use of this is to invoke "./ld.so someprog" to test out a new version of -+ the loader. We need to make sure that it is out of the way of the program -+ that it will "exec", and that there is sufficient room for the brk. */ -+ -+#define ELF_ET_DYN_BASE 0xD0000000UL -+ -+/* -+ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size -+ * data structure so a copy is performed instead of providing the -+ * ELF_CORE_COPY_REGS macro. -+ */ -+ -+/* This yields a mask that user programs can use to figure out what -+ instruction set this cpu supports. */ -+ -+#define ELF_HWCAP (0) -+ -+/* This yields a string that ld.so will use to load implementation -+ specific libraries for optimization. This is more specific in -+ intent than poking at uname or /proc/cpuinfo. */ -+ -+#define ELF_PLATFORM (NULL) -+ -+#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) -+ -+#endif /* _ASM_UBICOM32_ELF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/elf.h~ -@@ -0,0 +1,165 @@ -+/* -+ * arch/ubicom32/include/asm/elf.h -+ * Definitions for elf executable format for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_ELF_H -+#define _ASM_UBICOM32_ELF_H -+ -+/* -+ * ELF register definitions.. -+ */ -+ -+#include <asm/ptrace.h> -+#include <asm/user.h> -+ -+/* -+ * Processor specific flags for the ELF header e_flags field. -+ */ -+#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */ -+#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */ -+#define EF_UBICOM32_PIC 0x80000000 /* -fpic */ -+#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */ -+ -+/* -+ * Ubicom32 ELF relocation types -+ */ -+#define R_UBICOM32_NONE 0 -+#define R_UBICOM32_16 1 -+#define R_UBICOM32_32 2 -+#define R_UBICOM32_LO16 3 -+#define R_UBICOM32_HI16 4 -+#define R_UBICOM32_21_PCREL 5 -+#define R_UBICOM32_24_PCREL 6 -+#define R_UBICOM32_HI24 7 -+#define R_UBICOM32_LO7_S 8 -+#define R_UBICOM32_LO7_2_S 9 -+#define R_UBICOM32_LO7_4_S 10 -+#define R_UBICOM32_LO7_D 11 -+#define R_UBICOM32_LO7_2_D 12 -+#define R_UBICOM32_LO7_4_D 13 -+#define R_UBICOM32_32_HARVARD 14 -+#define R_UBICOM32_LO7_CALLI 15 -+#define R_UBICOM32_LO16_CALLI 16 -+#define R_UBICOM32_GOT_HI24 17 -+#define R_UBICOM32_GOT_LO7_S 18 -+#define R_UBICOM32_GOT_LO7_2_S 19 -+#define R_UBICOM32_GOT_LO7_4_S 20 -+#define R_UBICOM32_GOT_LO7_D 21 -+#define R_UBICOM32_GOT_LO7_2_D 22 -+#define R_UBICOM32_GOT_LO7_4_D 23 -+#define R_UBICOM32_FUNCDESC_GOT_HI24 24 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30 -+#define R_UBICOM32_GOT_LO7_CALLI 31 -+#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32 -+#define R_UBICOM32_FUNCDESC_VALUE 33 -+#define R_UBICOM32_FUNCDESC 34 -+#define R_UBICOM32_GOTOFFSET_LO 35 -+#define R_UBICOM32_GOTOFFSET_HI 36 -+#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37 -+#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38 -+#define R_UBICOM32_GNU_VTINHERIT 200 -+#define R_UBICOM32_GNU_VTENTRY 201 -+ -+typedef unsigned long elf_greg_t; -+ -+#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) -+typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -+ -+typedef struct user_ubicom32fp_struct elf_fpregset_t; -+ -+/* -+ * This is used to ensure we don't load something for the wrong architecture. -+ */ -+#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32) -+ -+#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC) -+ -+#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC) -+ -+/* -+ * These are used to set parameters in the core dumps. -+ */ -+#define ELF_CLASS ELFCLASS32 -+#define ELF_DATA ELFDATA2MSB -+#define ELF_ARCH EM_UBICOM32 -+ -+/* For SVR4/m68k the function pointer to be registered with `atexit' is -+ passed in %a1. Although my copy of the ABI has no such statement, it -+ is actually used on ASV. */ -+#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 -+ -+#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, \ -+ _dynamic_addr) \ -+ do { \ -+ _regs->dn[1] = _exec_map_addr; \ -+ _regs->dn[2] = _interp_map_addr; \ -+ _regs->dn[3] = _dynamic_addr; \ -+ _regs->an[1] = 0; /* dl_fini will be set by ldso */ \ -+ } while (0) -+ -+#define USE_ELF_CORE_DUMP -+#define ELF_EXEC_PAGESIZE 4096 -+ -+#ifdef CONFIG_UBICOM32_V4 -+#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V4) -+#elif defined CONFIG_UBICOM32_V3 -+#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V3) -+#else -+#error Unknown/Unsupported ubicom32 architecture. -+#endif -+ -+/* This is the location that an ET_DYN program is loaded if exec'ed. Typical -+ use of this is to invoke "./ld.so someprog" to test out a new version of -+ the loader. We need to make sure that it is out of the way of the program -+ that it will "exec", and that there is sufficient room for the brk. */ -+ -+#define ELF_ET_DYN_BASE 0xD0000000UL -+ -+/* -+ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size -+ * data structure so a copy is performed instead of providing the -+ * ELF_CORE_COPY_REGS macro. -+ */ -+ -+/* This yields a mask that user programs can use to figure out what -+ instruction set this cpu supports. */ -+ -+#define ELF_HWCAP (0) -+ -+/* This yields a string that ld.so will use to load implementation -+ specific libraries for optimization. This is more specific in -+ intent than poking at uname or /proc/cpuinfo. */ -+ -+#define ELF_PLATFORM (NULL) -+ -+#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) -+ -+#endif /* _ASM_UBICOM32_ELF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/emergency-restart.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/emergency-restart.h -+ * Generic emergency-restart.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_EMERGENCY_RESTART_H -+#define _ASM_UBICOM32_EMERGENCY_RESTART_H -+ -+#include <asm-generic/emergency-restart.h> -+ -+#endif /* _ASM_UBICOM32_EMERGENCY_RESTART_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/entry.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/entry.h -+ * Entry register/stack definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_ENTRY_H -+#define _ASM_UBICOM32_ENTRY_H -+ -+#include <asm/setup.h> -+#include <asm/page.h> -+ -+#endif /* _ASM_UBICOM32_ENTRY_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/errno.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/errno.h -+ * Generic errno.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_ERRNO_H -+#define _ASM_UBICOM32_ERRNO_H -+ -+#include <asm-generic/errno.h> -+ -+#endif /* _ASM_UBICOM32_ERRNO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/fb.h -@@ -0,0 +1,39 @@ -+/* -+ * arch/ubicom32/include/asm/fb.h -+ * Definition of fb_is_primary_device() for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_FB_H -+#define _ASM_UBICOM32_FB_H -+#include <linux/fb.h> -+ -+#define fb_pgprotect(...) do {} while (0) -+ -+static inline int fb_is_primary_device(struct fb_info *info) -+{ -+ return 0; -+} -+ -+#endif /* _ASM_UBICOM32_FB_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/fcntl.h -@@ -0,0 +1,38 @@ -+/* -+ * arch/ubicom32/include/asm/fcntl.h -+ * File control bit definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_FCNTL_H -+#define _ASM_UBICOM32_FCNTL_H -+ -+#define O_DIRECTORY 040000 /* must be a directory */ -+#define O_NOFOLLOW 0100000 /* don't follow links */ -+#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */ -+#define O_LARGEFILE 0400000 -+ -+#include <asm-generic/fcntl.h> -+ -+#endif /* _ASM_UBICOM32_FCNTL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/flat.h -@@ -0,0 +1,73 @@ -+/* -+ * arch/ubicom32/include/asm/flat.h -+ * Definitions to support flat-format executables. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_FLAT_H -+#define _ASM_UBICOM32_FLAT_H -+ -+#define ARCH_FLAT_ALIGN 0x80 -+#define ARCH_FLAT_ALIGN_TEXT 1 -+ -+#define R_UBICOM32_32 2 -+#define R_UBICOM32_HI24 7 -+#define R_UBICOM32_LO7_S 8 -+#define R_UBICOM32_LO7_2_S 9 -+#define R_UBICOM32_LO7_4_S 10 -+#define R_UBICOM32_LO7_D 11 -+#define R_UBICOM32_LO7_2_D 12 -+#define R_UBICOM32_LO7_4_D 13 -+#define R_UBICOM32_LO7_CALLI 15 -+#define R_UBICOM32_LO16_CALLI 16 -+ -+extern void ubicom32_flat_put_addr_at_rp(unsigned long *rp, u32_t val, u32_t rval, unsigned long *p); -+extern unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp, u32_t relval, u32_t flags, unsigned long *p); -+ -+#define flat_stack_align(sp) /* nothing needed */ -+#define flat_argvp_envp_on_stack() 1 -+#define flat_old_ram_flag(flags) (flags) -+#define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -+#define flat_get_addr_from_rp(rp, relval, flags, p) (ubicom32_flat_get_addr_from_rp(rp, relval,flags, p)) -+#define flat_put_addr_at_rp(rp, val, relval) do {ubicom32_flat_put_addr_at_rp(rp, val, relval, &persistent);} while(0) -+#define flat_get_relocate_addr(rel) ((persistent) ? (persistent & 0x07ffffff) : (rel & 0x07ffffff)) -+ -+static inline int flat_set_persistent(unsigned int relval, unsigned long *p) -+{ -+ if (*p) { -+ return 0; -+ } else { -+ if ((relval >> 27) != R_UBICOM32_32) { -+ /* -+ * Something other than UBICOM32_32. The next entry has the relocation. -+ */ -+ *p = relval; -+ return 1; -+ } -+ } -+ return 0; -+} -+ -+#endif /* _ASM_UBICOM32_FLAT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/fpu.h -@@ -0,0 +1,37 @@ -+/* -+ * arch/ubicom32/include/asm/fpu.h -+ * Floating point state definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_FPU_H -+#define _ASM_UBICOM32_FPU_H -+ -+/* -+ * MAX floating point unit state size (FSAVE/FRESTORE) -+ */ -+/* No FP unit present then... */ -+#define FPSTATESIZE (2) /* dummy size */ -+ -+#endif /* _ASM_UBICOM32_FPU_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/futex.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/futex.h -+ * Generic futex.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_FUTEX_H -+#define _ASM_UBICOM32_FUTEX_H -+ -+#include <asm-generic/futex.h> -+ -+#endif /* _ASM_UBICOM32_FUTEX_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/.gitignore -@@ -0,0 +1 @@ -+/ocm_size.h ---- /dev/null -+++ b/arch/ubicom32/include/asm/gpio.h -@@ -0,0 +1,451 @@ -+/* -+ * arch/ubicom32/include/asm/gpio.h -+ * Definitions for GPIO operations on Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_GPIO_H -+#define _ASM_UBICOM32_GPIO_H -+ -+#include <linux/compiler.h> -+#include <asm/irq.h> -+ -+#include <asm/ip5000.h> -+ -+#define ARCH_NR_GPIOS 512 -+#define MAX_UBICOM_ONCHIP_GPIO (9 * 32) -+ -+/* -+ * Macros for manipulating GPIO numbers -+ */ -+#define gpio_bit(gn) (1 << (gn & 0x1f)) -+#define gpio_bank(gn) (gn >> 5) -+ -+#define gpio_pin_index(gn) (gn & 0x1f) -+#define gpio_port_index(gn) (gn >> 5) -+ -+#define GPIO_RA_0 ((32 * 0) + 0) -+#define GPIO_RA_1 ((32 * 0) + 1) -+#define GPIO_RA_2 ((32 * 0) + 2) -+#define GPIO_RA_3 ((32 * 0) + 3) -+#define GPIO_RA_4 ((32 * 0) + 4) -+#define GPIO_RA_5 ((32 * 0) + 5) -+#define GPIO_RA_6 ((32 * 0) + 6) -+#define GPIO_RA_7 ((32 * 0) + 7) -+ -+#define GPIO_RB_0 ((32 * 1) + 0) -+#define GPIO_RB_1 ((32 * 1) + 1) -+#define GPIO_RB_2 ((32 * 1) + 2) -+#define GPIO_RB_3 ((32 * 1) + 3) -+#define GPIO_RB_4 ((32 * 1) + 4) -+#define GPIO_RB_5 ((32 * 1) + 5) -+#define GPIO_RB_6 ((32 * 1) + 6) -+#define GPIO_RB_7 ((32 * 1) + 7) -+#define GPIO_RB_8 ((32 * 1) + 8) -+#define GPIO_RB_9 ((32 * 1) + 9) -+#define GPIO_RB_10 ((32 * 1) + 10) -+#define GPIO_RB_11 ((32 * 1) + 11) -+#define GPIO_RB_12 ((32 * 1) + 12) -+#define GPIO_RB_13 ((32 * 1) + 13) -+#define GPIO_RB_14 ((32 * 1) + 14) -+#define GPIO_RB_15 ((32 * 1) + 15) -+#define GPIO_RB_16 ((32 * 1) + 16) -+#define GPIO_RB_17 ((32 * 1) + 17) -+#define GPIO_RB_18 ((32 * 1) + 18) -+#define GPIO_RB_19 ((32 * 1) + 19) -+ -+#define GPIO_RC_0 ((32 * 2) + 0) -+#define GPIO_RC_1 ((32 * 2) + 1) -+#define GPIO_RC_2 ((32 * 2) + 2) -+#define GPIO_RC_3 ((32 * 2) + 3) -+#define GPIO_RC_4 ((32 * 2) + 4) -+#define GPIO_RC_5 ((32 * 2) + 5) -+#define GPIO_RC_6 ((32 * 2) + 6) -+#define GPIO_RC_7 ((32 * 2) + 7) -+#define GPIO_RC_8 ((32 * 2) + 8) -+#define GPIO_RC_9 ((32 * 2) + 9) -+#define GPIO_RC_10 ((32 * 2) + 10) -+#define GPIO_RC_11 ((32 * 2) + 11) -+#define GPIO_RC_12 ((32 * 2) + 12) -+#define GPIO_RC_13 ((32 * 2) + 13) -+#define GPIO_RC_14 ((32 * 2) + 14) -+#define GPIO_RC_15 ((32 * 2) + 15) -+#define GPIO_RC_16 ((32 * 2) + 16) -+#define GPIO_RC_17 ((32 * 2) + 17) -+#define GPIO_RC_18 ((32 * 2) + 18) -+#define GPIO_RC_19 ((32 * 2) + 19) -+#define GPIO_RC_20 ((32 * 2) + 20) -+#define GPIO_RC_21 ((32 * 2) + 21) -+#define GPIO_RC_22 ((32 * 2) + 22) -+#define GPIO_RC_23 ((32 * 2) + 23) -+#define GPIO_RC_24 ((32 * 2) + 24) -+#define GPIO_RC_25 ((32 * 2) + 25) -+#define GPIO_RC_26 ((32 * 2) + 26) -+#define GPIO_RC_27 ((32 * 2) + 27) -+#define GPIO_RC_28 ((32 * 2) + 28) -+#define GPIO_RC_29 ((32 * 2) + 29) -+#define GPIO_RC_30 ((32 * 2) + 30) -+#define GPIO_RC_31 ((32 * 2) + 31) -+ -+#define GPIO_RD_0 ((32 * 3) + 0) -+#define GPIO_RD_1 ((32 * 3) + 1) -+#define GPIO_RD_2 ((32 * 3) + 2) -+#define GPIO_RD_3 ((32 * 3) + 3) -+#define GPIO_RD_4 ((32 * 3) + 4) -+#define GPIO_RD_5 ((32 * 3) + 5) -+#define GPIO_RD_6 ((32 * 3) + 6) -+#define GPIO_RD_7 ((32 * 3) + 7) -+#define GPIO_RD_8 ((32 * 3) + 8) -+#define GPIO_RD_9 ((32 * 3) + 9) -+#define GPIO_RD_10 ((32 * 3) + 10) -+#define GPIO_RD_11 ((32 * 3) + 11) -+ -+#define GPIO_RE_0 ((32 * 4) + 0) -+#define GPIO_RE_1 ((32 * 4) + 1) -+#define GPIO_RE_2 ((32 * 4) + 2) -+#define GPIO_RE_3 ((32 * 4) + 3) -+#define GPIO_RE_4 ((32 * 4) + 4) -+#define GPIO_RE_5 ((32 * 4) + 5) -+#define GPIO_RE_6 ((32 * 4) + 6) -+#define GPIO_RE_7 ((32 * 4) + 7) -+ -+#define GPIO_RF_0 ((32 * 5) + 0) -+#define GPIO_RF_1 ((32 * 5) + 1) -+#define GPIO_RF_2 ((32 * 5) + 2) -+#define GPIO_RF_3 ((32 * 5) + 3) -+#define GPIO_RF_4 ((32 * 5) + 4) -+#define GPIO_RF_5 ((32 * 5) + 5) -+#define GPIO_RF_6 ((32 * 5) + 6) -+#define GPIO_RF_7 ((32 * 5) + 7) -+#define GPIO_RF_8 ((32 * 5) + 8) -+#define GPIO_RF_9 ((32 * 5) + 9) -+#define GPIO_RF_10 ((32 * 5) + 10) -+#define GPIO_RF_11 ((32 * 5) + 11) -+#define GPIO_RF_12 ((32 * 5) + 12) -+#define GPIO_RF_13 ((32 * 5) + 13) -+#define GPIO_RF_14 ((32 * 5) + 14) -+#define GPIO_RF_15 ((32 * 5) + 15) -+ -+#define GPIO_RG_0 ((32 * 6) + 0) -+#define GPIO_RG_1 ((32 * 6) + 1) -+#define GPIO_RG_2 ((32 * 6) + 2) -+#define GPIO_RG_3 ((32 * 6) + 3) -+#define GPIO_RG_4 ((32 * 6) + 4) -+#define GPIO_RG_5 ((32 * 6) + 5) -+#define GPIO_RG_6 ((32 * 6) + 6) -+#define GPIO_RG_7 ((32 * 6) + 7) -+#define GPIO_RG_8 ((32 * 6) + 8) -+#define GPIO_RG_9 ((32 * 6) + 9) -+#define GPIO_RG_10 ((32 * 6) + 10) -+#define GPIO_RG_11 ((32 * 6) + 11) -+#define GPIO_RG_12 ((32 * 6) + 12) -+#define GPIO_RG_13 ((32 * 6) + 13) -+#define GPIO_RG_14 ((32 * 6) + 14) -+#define GPIO_RG_15 ((32 * 6) + 15) -+#define GPIO_RG_16 ((32 * 6) + 16) -+#define GPIO_RG_17 ((32 * 6) + 17) -+#define GPIO_RG_18 ((32 * 6) + 18) -+#define GPIO_RG_19 ((32 * 6) + 19) -+#define GPIO_RG_20 ((32 * 6) + 20) -+#define GPIO_RG_21 ((32 * 6) + 21) -+#define GPIO_RG_22 ((32 * 6) + 22) -+#define GPIO_RG_23 ((32 * 6) + 23) -+#define GPIO_RG_24 ((32 * 6) + 24) -+#define GPIO_RG_25 ((32 * 6) + 25) -+#define GPIO_RG_26 ((32 * 6) + 26) -+#define GPIO_RG_27 ((32 * 6) + 27) -+#define GPIO_RG_28 ((32 * 6) + 28) -+#define GPIO_RG_29 ((32 * 6) + 29) -+#define GPIO_RG_30 ((32 * 6) + 30) -+#define GPIO_RG_31 ((32 * 6) + 31) -+ -+#define GPIO_RH_0 ((32 * 7) + 0) -+#define GPIO_RH_1 ((32 * 7) + 1) -+#define GPIO_RH_2 ((32 * 7) + 2) -+#define GPIO_RH_3 ((32 * 7) + 3) -+#define GPIO_RH_4 ((32 * 7) + 4) -+#define GPIO_RH_5 ((32 * 7) + 5) -+#define GPIO_RH_6 ((32 * 7) + 6) -+#define GPIO_RH_7 ((32 * 7) + 7) -+#define GPIO_RH_8 ((32 * 7) + 8) -+#define GPIO_RH_9 ((32 * 7) + 9) -+ -+#define GPIO_RI_0 ((32 * 8) + 0) -+#define GPIO_RI_1 ((32 * 8) + 1) -+#define GPIO_RI_2 ((32 * 8) + 2) -+#define GPIO_RI_3 ((32 * 8) + 3) -+#define GPIO_RI_4 ((32 * 8) + 4) -+#define GPIO_RI_5 ((32 * 8) + 5) -+#define GPIO_RI_6 ((32 * 8) + 6) -+#define GPIO_RI_7 ((32 * 8) + 7) -+#define GPIO_RI_8 ((32 * 8) + 8) -+#define GPIO_RI_9 ((32 * 8) + 9) -+#define GPIO_RI_10 ((32 * 8) + 10) -+#define GPIO_RI_11 ((32 * 8) + 11) -+#define GPIO_RI_12 ((32 * 8) + 12) -+#define GPIO_RI_13 ((32 * 8) + 13) -+ -+/* -+ * The following section defines extra GPIO available to some boards. -+ * These GPIO are generally external to the processor (i.e. SPI/I2C -+ * expander chips). -+ * -+ * Note that these defines show all possible GPIO available, however, -+ * depending on the actual board configuration, some GPIO are not -+ * available for use. -+ */ -+#ifdef CONFIG_IP7500MEDIA -+/* -+ * U15 -+ */ -+#define IP7500MEDIA_U15_BASE (32 * 10) -+#define IP7500MEDIA_IO0 (IP7500MEDIA_U15_BASE + 0) -+#define IP7500MEDIA_IO1 (IP7500MEDIA_U15_BASE + 1) -+#define IP7500MEDIA_IO2 (IP7500MEDIA_U15_BASE + 2) -+#define IP7500MEDIA_IO3 (IP7500MEDIA_U15_BASE + 3) -+#define IP7500MEDIA_IO4 (IP7500MEDIA_U15_BASE + 4) -+#define IP7500MEDIA_IO5 (IP7500MEDIA_U15_BASE + 5) -+#define IP7500MEDIA_IO6 (IP7500MEDIA_U15_BASE + 6) -+#define IP7500MEDIA_IO7 (IP7500MEDIA_U15_BASE + 7) -+ -+/* -+ * U16 -+ */ -+#define IP7500MEDIA_U16_BASE (32 * 11) -+#define IP7500MEDIA_IO8 (IP7500MEDIA_U16_BASE + 0) -+#define IP7500MEDIA_IO9 (IP7500MEDIA_U16_BASE + 1) -+#define IP7500MEDIA_IO10 (IP7500MEDIA_U16_BASE + 2) -+#define IP7500MEDIA_IO11 (IP7500MEDIA_U16_BASE + 3) -+#define IP7500MEDIA_IO12 (IP7500MEDIA_U16_BASE + 4) -+#define IP7500MEDIA_IO13 (IP7500MEDIA_U16_BASE + 5) -+#define IP7500MEDIA_IO14 (IP7500MEDIA_U16_BASE + 6) -+#define IP7500MEDIA_IO15 (IP7500MEDIA_U16_BASE + 7) -+ -+/* -+ * U17 -+ */ -+#define IP7500MEDIA_U17_BASE (32 * 12) -+#define IP7500MEDIA_IO16 (IP7500MEDIA_U17_BASE + 0) -+#define IP7500MEDIA_IO17 (IP7500MEDIA_U17_BASE + 1) -+#define IP7500MEDIA_IO18 (IP7500MEDIA_U17_BASE + 2) -+#define IP7500MEDIA_IO19 (IP7500MEDIA_U17_BASE + 3) -+#define IP7500MEDIA_IO20 (IP7500MEDIA_U17_BASE + 4) -+#define IP7500MEDIA_IO21 (IP7500MEDIA_U17_BASE + 5) -+#define IP7500MEDIA_IO22 (IP7500MEDIA_U17_BASE + 6) -+#define IP7500MEDIA_IO23 (IP7500MEDIA_U17_BASE + 7) -+ -+/* -+ * U18 -+ */ -+#define IP7500MEDIA_U18_BASE (32 * 13) -+#define IP7500MEDIA_IO24 (IP7500MEDIA_U18_BASE + 0) -+#define IP7500MEDIA_IO25 (IP7500MEDIA_U18_BASE + 1) -+#define IP7500MEDIA_IO26 (IP7500MEDIA_U18_BASE + 2) -+#define IP7500MEDIA_IO27 (IP7500MEDIA_U18_BASE + 3) -+#define IP7500MEDIA_IO28 (IP7500MEDIA_U18_BASE + 4) -+#define IP7500MEDIA_IO29 (IP7500MEDIA_U18_BASE + 5) -+#define IP7500MEDIA_IO30 (IP7500MEDIA_U18_BASE + 6) -+#define IP7500MEDIA_IO31 (IP7500MEDIA_U18_BASE + 7) -+#endif -+ -+#ifdef CONFIG_IP7145DPF -+/* -+ * U48 -+ */ -+#define IP7145DPF_U48_BASE (32 * 10) -+#define IP7145DPF_IO0 (IP7145DPF_U48_BASE + 0) -+#define IP7145DPF_IO1 (IP7145DPF_U48_BASE + 1) -+#define IP7145DPF_IO2 (IP7145DPF_U48_BASE + 2) -+#define IP7145DPF_IO3 (IP7145DPF_U48_BASE + 3) -+#define IP7145DPF_IO4 (IP7145DPF_U48_BASE + 4) -+#define IP7145DPF_IO5 (IP7145DPF_U48_BASE + 5) -+#define IP7145DPF_IO6 (IP7145DPF_U48_BASE + 6) -+#define IP7145DPF_IO7 (IP7145DPF_U48_BASE + 7) -+ -+/* -+ * U72 -+ */ -+#define IP7145DPF_U72_BASE (32 * 11) -+#define IP7145DPF_IOB0 (IP7145DPF_U72_BASE + 0) -+#define IP7145DPF_IOB1 (IP7145DPF_U72_BASE + 1) -+#define IP7145DPF_IOB2 (IP7145DPF_U72_BASE + 2) -+#define IP7145DPF_IOB3 (IP7145DPF_U72_BASE + 3) -+#define IP7145DPF_IOB4 (IP7145DPF_U72_BASE + 4) -+#define IP7145DPF_IOB5 (IP7145DPF_U72_BASE + 5) -+#define IP7145DPF_IOB6 (IP7145DPF_U72_BASE + 6) -+#define IP7145DPF_IOB7 (IP7145DPF_U72_BASE + 7) -+#endif -+ -+#include <asm-generic/gpio.h> -+ -+/* -+ * The following macros bypass gpiolib to generate direct references -+ * to the port registers. These assume, minimally, that either -+ * gpio_direction_input() or gpio_direction_output() have already been -+ * called to setup the pin direction and to enable the pin function to -+ * be gpio. These macros generate the hardware port address based on -+ * the assumption that all ports are 32 bits wide (even though we know -+ * they are not). This is so we can efficiently turn pin numbers into -+ * port addresses without a lookup. -+ * -+ * These operations must be done in one instruction to prevent clobbering -+ * other thread's accesses to the same port. -+ */ -+#define UBICOM32_GPIO_ENABLE(pin) \ -+ do { \ -+ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask), \ -+ [mask] "d" (gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_DISABLE(pin) \ -+ do { \ -+ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask), \ -+ [mask] "d" (~gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN_INPUT(pin) \ -+ do { \ -+ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl), \ -+ [mask] "d" (~gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN_OUTPUT(pin) \ -+ do { \ -+ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl), \ -+ [mask] "d" (gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN_TOGGLE(pin) \ -+ do { \ -+ asm volatile ("xor.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \ -+ [mask] "d" (gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN_HIGH(pin) \ -+ do { \ -+ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \ -+ [mask] "d" (gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN_LOW(pin) \ -+ do { \ -+ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \ -+ : \ -+ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \ -+ [mask] "d" (~gpio_bit(pin)) \ -+ : "cc", "memory" \ -+ ); \ -+ } while (0); -+ -+#define UBICOM32_GPIO_SET_PIN(pin, val) \ -+ if ( val ) { \ -+ UBICOM32_GPIO_SET_PIN_HIGH(pin); \ -+ } else { \ -+ UBICOM32_GPIO_SET_PIN_LOW(pin); \ -+ } -+ -+#define UBICOM32_GPIO_GET_PIN(pin) \ -+ (0 != (UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_in \ -+ & gpio_bit(pin))) -+ -+ -+static inline int gpio_get_value(unsigned gpio) -+{ -+ if (gpio <= MAX_UBICOM_ONCHIP_GPIO) -+ return UBICOM32_GPIO_GET_PIN(gpio); -+ else -+ return __gpio_get_value(gpio); -+} -+ -+static inline void gpio_set_value(unsigned gpio, int value) -+{ -+ if (gpio <= MAX_UBICOM_ONCHIP_GPIO) -+ { -+ UBICOM32_GPIO_SET_PIN(gpio, value); -+ } -+ else -+ { -+ __gpio_set_value(gpio, value); -+ } -+} -+ -+static inline int gpio_cansleep(unsigned gpio) -+{ -+ return __gpio_cansleep(gpio); -+} -+ -+static inline int gpio_to_irq(unsigned gpio) -+{ -+#if defined(IP5000) || defined(IP5000_REV2) -+ if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6)) -+ return 25; -+ else -+ return -ENXIO; -+ -+#elif defined(IP7000) || defined(IP7000_REV2) -+ if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6)) -+ return 44 + (gpio - GPIO_RA_4); -+ else -+ return -ENXIO; -+ -+#else -+ return -ENXIO; -+ -+#endif -+} -+ -+static inline int irq_to_gpio(unsigned gpio) -+{ -+ return -ENXIO; -+} -+ -+extern struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio); -+ -+extern int __init ubi_gpio_init(void); -+ -+#endif /* _ASM_UBICOM32_GPIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/hardirq.h -@@ -0,0 +1,55 @@ -+/* -+ * arch/ubicom32/include/asm/hardirq.h -+ * Definition of ack_bad_irq() for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1997, 98, 99, 2000, 01, 05 Ralf Baechle (ralf@linux-mips.org) -+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc. -+ * Copyright (C) 2001 MIPS Technologies, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_HARDIRQ_H -+#define _ASM_UBICOM32_HARDIRQ_H -+ -+#include <linux/threads.h> -+#include <linux/irq.h> -+ -+/* -+ * The hardirq mask has to be large enough to have space -+ * for potentially all IRQ sources in the system nesting -+ * on a single CPU. For Ubicom32, we have 64 IRQ sources. -+ */ -+#define HARDIRQ_BITS 6 -+#if (1 << HARDIRQ_BITS) < NR_IRQS -+# error HARDIRQ_BITS is too low! -+#endif -+ -+typedef struct { -+ unsigned int __softirq_pending; -+} ____cacheline_aligned irq_cpustat_t; -+ -+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ -+ -+extern void ack_bad_irq(unsigned int irq); -+ -+#endif /* _ASM_UBICOM32_HARDIRQ_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/hw_irq.h -@@ -0,0 +1,31 @@ -+/* -+ * arch/ubicom32/include/asm/hw_irq.h -+ * Ubicom32 architecture APIC support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_HW_IRQ_H -+#define _ASM_UBICOM32_HW_IRQ_H -+ -+#endif /* _ASM_UBICOM32_HW_IRQ_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ioctl.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/ioctl.h -+ * Generic ioctl.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IOCTL_H -+#define _ASM_UBICOM32_IOCTL_H -+ -+#include <asm-generic/ioctl.h> -+ -+#endif /* _ASM_UBICOM32_IOCTL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ioctls.h -@@ -0,0 +1,111 @@ -+/* -+ * arch/ubicom32/include/asm/ioctls.h -+ * Definitions of ioctls for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IOCTLS_H -+#define _ASM_UBICOM32_IOCTLS_H -+ -+#include <asm/ioctl.h> -+ -+/* 0x54 is just a magic number to make these relatively unique ('T') */ -+ -+#define TCGETS 0x5401 -+#define TCSETS 0x5402 -+#define TCSETSW 0x5403 -+#define TCSETSF 0x5404 -+#define TCGETA 0x5405 -+#define TCSETA 0x5406 -+#define TCSETAW 0x5407 -+#define TCSETAF 0x5408 -+#define TCSBRK 0x5409 -+#define TCXONC 0x540A -+#define TCFLSH 0x540B -+#define TIOCEXCL 0x540C -+#define TIOCNXCL 0x540D -+#define TIOCSCTTY 0x540E -+#define TIOCGPGRP 0x540F -+#define TIOCSPGRP 0x5410 -+#define TIOCOUTQ 0x5411 -+#define TIOCSTI 0x5412 -+#define TIOCGWINSZ 0x5413 -+#define TIOCSWINSZ 0x5414 -+#define TIOCMGET 0x5415 -+#define TIOCMBIS 0x5416 -+#define TIOCMBIC 0x5417 -+#define TIOCMSET 0x5418 -+#define TIOCGSOFTCAR 0x5419 -+#define TIOCSSOFTCAR 0x541A -+#define FIONREAD 0x541B -+#define TIOCINQ FIONREAD -+#define TIOCLINUX 0x541C -+#define TIOCCONS 0x541D -+#define TIOCGSERIAL 0x541E -+#define TIOCSSERIAL 0x541F -+#define TIOCPKT 0x5420 -+#define FIONBIO 0x5421 -+#define TIOCNOTTY 0x5422 -+#define TIOCSETD 0x5423 -+#define TIOCGETD 0x5424 -+#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ -+#define TIOCSBRK 0x5427 /* BSD compatibility */ -+#define TIOCCBRK 0x5428 /* BSD compatibility */ -+#define TIOCGSID 0x5429 /* Return the session ID of FD */ -+#define TCGETS2 _IOR('T',0x2A, struct termios2) -+#define TCSETS2 _IOW('T',0x2B, struct termios2) -+#define TCSETSW2 _IOW('T',0x2C, struct termios2) -+#define TCSETSF2 _IOW('T',0x2D, struct termios2) -+#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ -+#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ -+ -+#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ -+#define FIOCLEX 0x5451 -+#define FIOASYNC 0x5452 -+#define TIOCSERCONFIG 0x5453 -+#define TIOCSERGWILD 0x5454 -+#define TIOCSERSWILD 0x5455 -+#define TIOCGLCKTRMIOS 0x5456 -+#define TIOCSLCKTRMIOS 0x5457 -+#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ -+#define TIOCSERGETLSR 0x5459 /* Get line status register */ -+#define TIOCSERGETMULTI 0x545A /* Get multiport config */ -+#define TIOCSERSETMULTI 0x545B /* Set multiport config */ -+ -+#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ -+#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ -+#define FIOQSIZE 0x545E -+ -+/* Used for packet mode */ -+#define TIOCPKT_DATA 0 -+#define TIOCPKT_FLUSHREAD 1 -+#define TIOCPKT_FLUSHWRITE 2 -+#define TIOCPKT_STOP 4 -+#define TIOCPKT_START 8 -+#define TIOCPKT_NOSTOP 16 -+#define TIOCPKT_DOSTOP 32 -+ -+#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ -+ -+#endif /* _ASM_UBICOM32_IOCTLS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/io.h -@@ -0,0 +1,313 @@ -+/* -+ * arch/ubicom32/include/asm/io.h -+ * I/O memory accessor functions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IO_H -+#define _ASM_UBICOM32_IO_H -+ -+#ifdef __KERNEL__ -+#include <linux/string.h> -+#include <linux/compiler.h> -+ -+static inline unsigned short _swapw(volatile unsigned short v) -+{ -+ return ((v << 8) | (v >> 8)); -+} -+ -+static inline unsigned int _swapl(volatile unsigned long v) -+{ -+ return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24)); -+} -+ -+#ifndef CONFIG_PCI -+#define readb(addr) \ -+ ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) -+#define readw(addr) \ -+ ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) -+#define readl(addr) \ -+ ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; }) -+ -+#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b)) -+#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b)) -+#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b)) -+#else /*CONFIG_PCI */ -+ -+#define PCI_CPU_REG_BASE (0x00000000UL) /* taking lower 2GB space */ -+#define PCI_DEV_REG_BASE (0x80000000UL) -+ -+#if PCI_CPU_REG_BASE > PCI_DEV_REG_BASE -+#define IS_PCI_ADDRESS(x) (((unsigned int)(x)&(PCI_CPU_REG_BASE)) == 0) -+#else -+#define IS_PCI_ADDRESS(x) ((unsigned int)(x)&(PCI_DEV_REG_BASE)) -+#endif -+ -+extern unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr); -+extern unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr); -+extern unsigned char ubi32_pci_read_u8(const volatile void __iomem *addr); -+extern void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr); -+extern void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr); -+extern void ubi32_pci_write_u8(unsigned char val, const volatile void __iomem *addr); -+ -+static inline unsigned char readb(const volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u8(addr); -+ else -+ return (unsigned char)(*(volatile unsigned char *)addr); -+} -+static inline unsigned short readw(const volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u16(addr); -+ else -+ return (unsigned short)(*(volatile unsigned short *)addr); -+} -+ -+static inline unsigned int readl(const volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u32(addr); -+ else -+ return (unsigned int)(*(volatile unsigned int *)addr); -+} -+ -+static inline void writel(unsigned int val, volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u32(val, addr); -+ else -+ *(volatile unsigned int *)addr = val; -+} -+ -+static inline void writew(unsigned short val, volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u16(val, addr); -+ else -+ *(volatile unsigned short *)addr = val; -+} -+ -+static inline void writeb(unsigned char val, volatile void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u8(val, addr); -+ else -+ *(volatile unsigned char *)addr = val; -+} -+#endif -+ -+#define readb_relaxed(addr) readb(addr) -+#define readw_relaxed(addr) readw(addr) -+#define readl_relaxed(addr) readl(addr) -+ -+ -+#define __raw_readb readb -+#define __raw_readw readw -+#define __raw_readl readl -+#define __raw_writeb writeb -+#define __raw_writew writew -+#define __raw_writel writel -+ -+static inline void io_outsb(unsigned int addr, const void *buf, int len) -+{ -+ volatile unsigned char *ap = (volatile unsigned char *) addr; -+ unsigned char *bp = (unsigned char *) buf; -+ while (len--) -+ *ap = *bp++; -+} -+ -+static inline void io_outsw(unsigned int addr, const void *buf, int len) -+{ -+ volatile unsigned short *ap = (volatile unsigned short *) addr; -+ unsigned short *bp = (unsigned short *) buf; -+ while (len--) -+ *ap = _swapw(*bp++); -+} -+ -+static inline void io_outsl(unsigned int addr, const void *buf, int len) -+{ -+ volatile unsigned int *ap = (volatile unsigned int *) addr; -+ unsigned int *bp = (unsigned int *) buf; -+ while (len--) -+ *ap = _swapl(*bp++); -+} -+ -+static inline void io_insb(unsigned int addr, void *buf, int len) -+{ -+ volatile unsigned char *ap = (volatile unsigned char *) addr; -+ unsigned char *bp = (unsigned char *) buf; -+ while (len--) -+ *bp++ = *ap; -+} -+ -+static inline void io_insw(unsigned int addr, void *buf, int len) -+{ -+ volatile unsigned short *ap = (volatile unsigned short *) addr; -+ unsigned short *bp = (unsigned short *) buf; -+ while (len--) -+ *bp++ = _swapw(*ap); -+} -+ -+static inline void io_insl(unsigned int addr, void *buf, int len) -+{ -+ volatile unsigned int *ap = (volatile unsigned int *) addr; -+ unsigned int *bp = (unsigned int *) buf; -+ while (len--) -+ *bp++ = _swapl(*ap); -+} -+ -+#define mmiowb() -+ -+/* -+ * make the short names macros so specific devices -+ * can override them as required -+ */ -+#ifndef CONFIG_PCI -+#define memset_io(a,b,c) memset((void *)(a),(b),(c)) -+#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c)) -+#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c)) -+#else -+extern void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len); -+extern void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len); -+extern void memset_io(volatile void __iomem *addr, int val, size_t count); -+#endif -+ -+#define inb(addr) readb(addr) -+#define inw(addr) readw(addr) -+#define inl(addr) readl(addr) -+#define outb(x,addr) ((void) writeb(x,addr)) -+#define outw(x,addr) ((void) writew(x,addr)) -+#define outl(x,addr) ((void) writel(x,addr)) -+ -+#define inb_p(addr) inb(addr) -+#define inw_p(addr) inw(addr) -+#define inl_p(addr) inl(addr) -+#define outb_p(x,addr) outb(x,addr) -+#define outw_p(x,addr) outw(x,addr) -+#define outl_p(x,addr) outl(x,addr) -+ -+#define outsb(a,b,l) io_outsb(a,b,l) -+#define outsw(a,b,l) io_outsw(a,b,l) -+#define outsl(a,b,l) io_outsl(a,b,l) -+ -+#define insb(a,b,l) io_insb(a,b,l) -+#define insw(a,b,l) io_insw(a,b,l) -+#define insl(a,b,l) io_insl(a,b,l) -+ -+#ifndef CONFIG_PCI -+#define ioread8_rep(a,d,c) insb(a,d,c) -+#define ioread16_rep(a,d,c) insw(a,d,c) -+#define ioread32_rep(a,d,c) insl(a,d,c) -+#define iowrite8_rep(a,s,c) outsb(a,s,c) -+#define iowrite16_rep(a,s,c) outsw(a,s,c) -+#define iowrite32_rep(a,s,c) outsl(a,s,c) -+#else -+extern void ioread8_rep(void __iomem *port, void *buf, unsigned long count); -+extern void ioread16_rep(void __iomem *port, void *buf, unsigned long count); -+extern void ioread32_rep(void __iomem *port, void *buf, unsigned long count); -+extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count); -+extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count); -+extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count); -+#endif -+ -+ -+#ifndef CONFIG_PCI -+#define ioread8(X) readb(X) -+#define ioread16(X) readw(X) -+#define ioread32(X) readl(X) -+#define iowrite8(val,X) writeb(val,X) -+#define iowrite16(val,X) writew(val,X) -+#define iowrite32(val,X) writel(val,X) -+#else /*CONFIG_PCI */ -+extern unsigned char ioread8(void __iomem *addr); -+extern unsigned short ioread16(void __iomem *addr); -+extern unsigned int ioread32(void __iomem *addr); -+extern void iowrite8(unsigned char val, void __iomem *addr); -+extern void iowrite16(unsigned short val, void __iomem *addr); -+extern void iowrite32(unsigned int val, void __iomem *addr); -+#endif /* CONFIG_PCI */ -+ -+#define IO_SPACE_LIMIT 0xffff -+ -+/* Values for nocacheflag and cmode */ -+#define IOMAP_FULL_CACHING 0 -+#define IOMAP_NOCACHE_SER 1 -+#define IOMAP_NOCACHE_NONSER 2 -+#define IOMAP_WRITETHROUGH 3 -+ -+extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag); -+extern void __iounmap(void *addr, unsigned long size); -+ -+static inline void *ioremap(unsigned long physaddr, unsigned long size) -+{ -+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); -+} -+static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size) -+{ -+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); -+} -+static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size) -+{ -+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); -+} -+static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size) -+{ -+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING); -+} -+ -+extern void iounmap(void *addr); -+ -+#define ioport_map(port, nr) ((void __iomem*)(port)) -+#define ioport_unmap(addr) -+ -+ -+/* Pages to physical address... */ -+#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) -+#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT) -+ -+/* -+ * Macros used for converting between virtual and physical mappings. -+ */ -+#define phys_to_virt(vaddr) ((void *) (vaddr)) -+#define virt_to_phys(vaddr) ((unsigned long) (vaddr)) -+ -+#define virt_to_bus virt_to_phys -+#define bus_to_virt phys_to_virt -+ -+/* -+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem -+ * access -+ */ -+#define xlate_dev_mem_ptr(p) __va(p) -+ -+/* -+ * Convert a virtual cached pointer to an uncached pointer -+ */ -+#define xlate_dev_kmem_ptr(p) p -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_IO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ip5000-asm.h -@@ -0,0 +1,156 @@ -+/* -+ * arch/ubicom32/include/asm/ip5000-asm.h -+ * Instruction macros for the IP5000. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_IP5000_ASM_H -+#define _ASM_UBICOM32_IP5000_ASM_H -+ -+#if !defined(__LINKER__) -+ -+#if defined(__ASSEMBLY__) -+.macro cycles quant -+.if (\quant) == 1 -+ nop -+.else -+.if (((\quant) + 3) / 8) > 0 -+.rept (((\quant) + 3) / 8) -+ jmpt.f .+4 -+.endr -+.endif -+.if ((((\quant) + 3) % 8) / 4) > 0 -+ jmpt.t .+4 -+.endif -+.endif -+.endm -+#else -+/* -+ * Same macro as above just in C inline asm -+ */ -+asm (" \n\ -+.macro cycles quant \n\ -+.if (\\quant) == 1 \n\ -+ nop \n\ -+.else \n\ -+.if (((\\quant) + 3) / 8) > 0 \n\ -+.rept (((\\quant) + 3) / 8) \n\ -+ jmpt.f .+4 \n\ -+.endr \n\ -+.endif \n\ -+.if ((((\\quant) + 3) % 8) / 4) > 0 \n\ -+ jmpt.t .+4 \n\ -+.endif \n\ -+.endif \n\ -+.endm \n\ -+"); -+#endif -+ -+ -+#if defined(__ASSEMBLY__) -+.macro pipe_flush cyc -+ cycles 11 - (\cyc) -+.endm -+#else -+/* -+ * Same macro as above just in C inline asm -+ */ -+asm (" \n\ -+.macro pipe_flush cyc \n\ -+ cycles 11 - (\\cyc) \n\ -+.endm \n\ -+"); -+ -+#endif -+ -+#if defined(__ASSEMBLY__) -+.macro setcsr_flush cyc -+ cycles 5 - (\cyc) -+.endm -+#else -+/* -+ * Same macro as above just in C inline asm -+ */ -+asm (" \n\ -+.macro setcsr_flush cyc \n\ -+ cycles 5 - (\\cyc) \n\ -+.endm \n\ -+"); -+#endif -+ -+/* -+ * Macros for prefetch (using miss-aligned memory write) -+ */ -+#if defined(__ASSEMBLY__) -+ -+.macro pre_fetch_macro thread_num, Ascratch, Aaddress length -+ bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) -+ bset \Ascratch, \Aaddress, #0 ; force a miss-aligned address -+ jmpt.t .+4 ; delay for both address setup and trap disable -+ move.4 (\Ascratch), #0 -+ .if (\length > 32) -+ move.4 32(\Ascratch), #0 -+ .endif -+ .if (\length > 64) -+ move.4 64(\Ascratch), #0 -+ .endif -+ .if (\length > 96) -+ move.4 96(\Ascratch), #0 -+ .endif -+ .if (\length > 128) -+ invalid_instruction ; maximum pre-fetch size is 4 cache lines -+ .endif -+ bset MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) -+.endm -+ -+#else -+/* -+ * Same macro as above just in C inline asm -+ */ -+asm (" \n\ -+.macro pre_fetch_macro thread_num, Ascratch, Aaddress length \n\ -+ bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) \n\ -+ bset \\Ascratch, \\Aaddress, #0 ; force a miss-aligned address \n\ -+ jmpt.t .+4 ; delay for both address setup and trap disable \n\ -+ move.4 (\\Ascratch), #0 \n\ -+ .if (\\length > 32) \n\ -+ move.4 32(\\Ascratch), #0 \n\ -+ .endif \n\ -+ .if (\\length > 64) \n\ -+ move.4 64(\\Ascratch), #0 \n\ -+ .endif \n\ -+ .if (\\length > 96) \n\ -+ move.4 96(\\Ascratch), #0 \n\ -+ .endif \n\ -+ .if (\\length > 128) \n\ -+ invalid_instruction ; maximum pre-fetch size is 4 cache lines \n\ -+ .endif \n\ -+ bset MT_TRAP_EN, MT_TRAP_EN, #(\\thread_num) \n\ -+.endm \n\ -+"); -+#endif -+ -+#endif /* !defined(__LINKER__) */ -+#endif /* defined _ASM_UBICOM32_IP5000_ASM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ip5000.h -@@ -0,0 +1,860 @@ -+/* -+ * arch/ubicom32/include/asm/ip5000.h -+ * Specific details for the Ubicom IP5000 processor. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_IP5000_H -+#define _ASM_UBICOM32_IP5000_H -+ -+/* -+ * Inline assembly define -+ */ -+#define S(arg) #arg -+#define D(arg) S(arg) -+ -+/* -+ * Assembler include file -+ */ -+#include <asm/ip5000-asm.h> -+ -+/* -+ * Timing -+ */ -+#define JMPT_PENALTY 3 -+#define JMPF_PENALTY 7 -+#define RET_PENALTY 7 -+ -+/* -+ * Threads -+ */ -+#if defined(IP5000) || defined(IP5000_REV2) -+#define THREAD_COUNT 10 -+#elif defined(IP7000) || defined(IP7000_REV2) -+#define THREAD_COUNT 12 -+#else -+#error "Unknown IP5K silicon" -+#endif -+ -+/* -+ * Arch -+ */ -+#if defined(IP5000) || defined(IP5000_REV2) -+#define UBICOM32_ARCH_VERSION 3 -+#elif defined(IP7000) || defined(IP7000_REV2) -+#define UBICOM32_ARCH_VERSION 4 -+#else -+#error "Unknown IP5K silicon" -+#endif -+ -+/* -+ * Memory Size -+ */ -+#define OCM_SECTOR_SIZE 0x00008000 /* 32K */ -+ -+#if defined(IP5000) || defined(IP5000_REV2) -+#define OCMSIZE 0x00030000 /* 192K on-chip RAM for both program and data */ -+#elif defined(IP7000) || defined(IP7000_REV2) -+#define OCMSIZE 0x0003C000 /* 240K on-chip RAM for both program and data */ -+#else -+#error "Unknown IP5K silicon" -+#endif -+ -+#define OCMSTART 0x3ffc0000 /* alias from 0x03000000 for easy jump to/from SDRAM */ -+#define OCMEND (OCMSTART + OCMSIZE) -+#define SDRAMSTART 0x40000000 -+#define FLASHSTART 0x60000000 -+ -+/* -+ * Registers -+ */ -+#define ROSR_INT (1 << 0) -+ -+/* Interrupts */ -+#define INT_CHIP(reg, bit) (((reg) << 5) | (bit)) -+#define INT_REG(interrupt) (((interrupt) >> 5) * 4) -+#define INT_SET(interrupt) 0x0114 + INT_REG(interrupt) -+#define INT_CLR(interrupt) 0x0124 + INT_REG(interrupt) -+#define INT_STAT(interrupt) 0x0104 + INT_REG(interrupt) -+#define INT_MASK(interrupt) 0x00C0 + INT_REG(interrupt) -+#define INT_BIT(interrupt) ((interrupt) & 0x1F) -+#define INT_BIT_MASK(interrupt) (1 << INT_BIT(interrupt)) -+ -+/* -+ * The LOCK_INT and THREAD_INT are used to wake up corresponding thread. They are sharing -+ * the same set of SW interrupt resource. -+ * -+ * LOCK_INT(n): One SW INT per NRT thread that can participate lock operation. -+ * The threads that can participate lock are application threads and DSR thread. -+ * (Lock locks - numbers are hard-coded in lock.h) -+ * THREAD_INT(n): One SW INT per HRT thread for wake up trigger. -+ */ -+#define LOCK_INT(thread) INT_CHIP(0, (thread)) -+#define THREAD_INT(thread) INT_CHIP(0, (thread)) -+ -+/* -+ * The SYSTEM_INT and DSR_INT are sharing the same set of SW interrupt resource. -+ * -+ * SYSTEM_INT(n): One SW INT per NRT threads (application threads) as system queue interrupt, -+ * and for DSR as self-trigger interrupt. -+ * (The application threads include at least thread 0) -+ * DSR_INT(n): One SW INT per HRT thread to request DSR service. -+ */ -+#define SYSTEM_INT(thread) INT_CHIP(0, THREAD_COUNT + (thread)) -+#define DSR_INT(thread) INT_CHIP(0, THREAD_COUNT + (thread)) -+ -+/* GLOBAL_CTRL */ -+#define GLOBAL_CTRL_TRAP_RST_EN (1 << 9) -+#define GLOBAL_CTRL_AERROR_RST_EN (1 << 8) -+#define GLOBAL_CTRL_MT_MIN_DELAY(x) ((x) << 3) -+#define GLOBAL_CTRL_HRT_BANK_SELECT (1 << 2) -+#define GLOBAL_CTRL_INT_EN (1 << 0) -+ -+/* -+ * HRT Tables -+ */ -+#define HRT_TABLE0_BASE 0x0800 -+#define HRT_TABLE1_BASE 0x0900 -+#define HRT_TABLE_SIZE 64 -+ -+/* -+ * Break Point Trap Register -+ */ -+#define ASYNCERROR_INT INT_CHIP(0, 31) -+#define BREAKPOINT_INT INT_CHIP(1, 31) -+ -+/* -+ * Port interrupts -+ * The non-existing FIFO INTs are mapped to INT2 for the ports. -+ */ -+#define IO_PORT_PTR_TO_NUM(port) (((port) & 0x0000ffff) >> 12) -+#define RX_FIFO_INT(port) \ -+ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 26) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 24) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 27) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 16) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 21) : \ -+ INT_CHIP(1, 15)))))))))) -+#define TX_FIFO_INT(port) \ -+ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 24) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 27) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 25) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 28) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 17) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 22) : \ -+ INT_CHIP(1, 15)))))))))) -+#define PORT_OTHER_INT(port) \ -+ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 28) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 26) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 29) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 18) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \ -+ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 23) : \ -+ INT_CHIP(1, 15)))))))))) -+ -+/* -+ * On Chip Peripherals Base. -+ */ -+#define OCP_BASE 0x01000000 -+#define OCP_GENERAL 0x000 -+#define OCP_TIMERS 0x100 -+#define OCP_TRNG 0x200 /* True Random Number Generator Control Reigsters */ -+#define OCP_DEBUG 0x300 -+#define OCP_SECURITY 0x400 -+#define OCP_ICCR 0x500 /* I-Cache Control Registers */ -+#define OCP_DCCR 0x600 /* D-Cache Control Registers */ -+#define OCP_OCMC 0x700 /* On Chip Memory Control Registers */ -+#define OCP_STATISTICS 0x800 /* Statistics Counters */ -+#define OCP_MTEST 0x900 /* Memory Test Registers */ -+#define OCP_MCFG 0xa00 /* Memory Configuration Registers -- IP7000 only */ -+#define OCP_DEBUG_INST 0x000 /* Up to 16M */ -+ -+/* -+ * General Configuration Registers (PLL) -+ */ -+#define GENERAL_CFG_BASE (OCP_BASE + OCP_GENERAL) -+#define GEN_CLK_CORE_CFG 0x00 -+#define GEN_CLK_IO_CFG 0x04 -+#define GEN_CLK_DDR_CFG 0x08 -+#define GEN_CLK_DDRDS_CFG 0x0c -+#define GEN_CLK_SLIP_CLR 0x10 -+#define GEN_CLK_SLIP_START 0x14 -+#define GEN_CLK_SERDES_SEL 0x18 /* IP7000 only */ -+#define GEN_CLK_DDR_CFG2 0x1c /* IP7000 only */ -+#define GEN_DDR_CAL_CTRL 0x30 /* IP5000 only */ -+#define GEN_DDR_CAL_STAT 0x34 /* IP5000 only */ -+#define GEN_USB_DFT_CTRL 0x38 /* IP5000 only */ -+#define GEN_USB_DFT_STAT 0x3c /* IP5000 only */ -+#define GEN_USB_PHY_CFG 0x40 /* IP7000 only */ -+#define GEN_USB_PHY_TEST 0x44 /* IP7000 only */ -+#define GEN_USB_PHY_STAT 0x48 /* IP7000 only */ -+#define GEN_SW_RESET 0x80 -+#define GEN_RESET_REASON 0x84 -+#define GEN_BOND_CFG 0x88 -+#define GEN_IO_PU_CFG 0x8c -+#define GEN_MEM_RM_CFG 0x90 -+#define GEN_IO_CONFIG 0x94 -+ -+#define GEN_CLK_PLL_SECURITY_BIT_NO 31 -+#define GEN_CLK_PLL_SECURITY (1 << GEN_CLK_PLL_SECURITY_BIT_NO) -+#define GEN_CLK_PLL_ENSAT (1 << 30) -+#define GEN_CLK_PLL_FASTEN (1 << 29) -+#define GEN_CLK_PLL_NR(v) (((v) - 1) << 23) -+#define GEN_CLK_PLL_NF(v) (((v) - 1) << 11) -+#define GEN_CLK_PLL_OD(v) (((v) - 1) << 8) -+#define GEN_CLK_PLL_RESET (1 << 7) -+#define GEN_CLK_PLL_BYPASS (1 << 6) -+#define GEN_CLK_PLL_POWERDOWN (1 << 5) -+#define GEN_CLK_PLL_SELECT (1 << 4) -+ -+#define GEN_GET_CLK_PLL_NR(v) ((((v) >> 23) & 0x003f) + 1) -+#define GEN_GET_CLK_PLL_NF(v) ((((v) >> 11) & 0x0fff) + 1) -+#define GEN_GET_CLK_PLL_OD(v) ((((v) >> 8) & 0x7) + 1) -+ -+ -+#define RESET_FLAG_DST_MEM_ERROR (1 << 18) -+#define RESET_FLAG_SRC1_MEM_ERROR (1 << 17) -+#define RESET_FLAG_WRITE_ADDR (1 << 16) -+#define RESET_FLAG_DST_SYNC_ERROR (1 << 15) -+#define RESET_FLAG_SRC1_SYNC_ERROR (1 << 14) -+#define RESET_FLAG_DST_ALGN_ERROR (1 << 13) -+#define RESET_FLAG_SRC1_ALGN_ERROR (1 << 12) -+#define RESET_FLAG_DST_ADDR_ERROR (1 << 11) -+#define RESET_FLAG_SRC1_ADDR_ERROR (1 << 10) -+#define RESET_FLAG_ILLEGAL_INST (1 << 9) -+#define RESET_FLAG_INST_SYNC_ERROR (1 << 8) -+#define RESET_FLAG_INST_ADDR_ERROR (1 << 7) -+#define RESET_FLAG_DATA_PORT_ERROR (1 << 6) -+#define RESET_FLAG_INST_PORT_ERROR (1 << 5) -+#define RESET_FLAG_SW_RESET (1 << 4) -+#define RESET_FLAG_DEBUG (1 << 3) -+#define RESET_FLAG_WATCHDOG (1 << 2) -+#define RESET_FLAG_POWER_ON (1 << 1) -+#define RESET_FLAG_EXTERNAL (1 << 0) -+ -+/* -+ * Timer block -+ */ -+#define TIMER_BASE (OCP_BASE + OCP_TIMERS) -+#define TIMER_MPTVAL 0x00 -+#define TIMER_RTCOM 0x04 -+#define TIMER_TKEY 0x08 -+#define TIMER_WDCOM 0x0c -+#define TIMER_WDCFG 0x10 -+#define TIMER_SYSVAL 0x14 -+#define TIMER_SYSCOM(tmr) (0x18 + (tmr) * 4) -+#define TIMER_TRN_CFG 0x100 -+#define TIMER_TRN 0x104 -+ -+#define TIMER_COUNT 10 -+#define TIMER_INT(tmr) INT_CHIP(1, (tmr)) -+#define TIMER_TKEYVAL 0xa1b2c3d4 -+#define TIMER_WATCHDOG_DISABLE 0x4d3c2b1a -+#define TIMER_TRN_CFG_ENABLE_OSC 0x00000007 -+ -+#ifndef __ASSEMBLY__ -+/* -+ * ubicom32_io_timer -+ */ -+struct ubicom32_io_timer { -+ volatile u32_t mptval; -+ volatile u32_t rtcom; -+ volatile u32_t tkey; -+ volatile u32_t wdcom; -+ volatile u32_t wdcfg; -+ volatile u32_t sysval; -+ volatile u32_t syscom[TIMER_COUNT]; -+ volatile u32_t reserved[64 - 6 - TIMER_COUNT]; // skip all the way to OCP-TRNG section -+ volatile u32_t rsgcfg; -+ volatile u32_t trn; -+}; -+ -+#define UBICOM32_IO_TIMER ((struct ubicom32_io_timer *)TIMER_BASE) -+#endif -+ -+#define UBICOM32_VECTOR_TO_TIMER_INDEX(vector) (vector - TIMER_INT(0)) -+ -+/* -+ * OCP-Debug Module (Mailbox) -+ */ -+#define ISD_MAILBOX_BASE (OCP_BASE + OCP_DEBUG) -+#define ISD_MAILBOX_IN 0x00 -+#define ISD_MAILBOX_OUT 0x04 -+#define ISD_MAILBOX_STATUS 0x08 -+ -+#define ISD_MAILBOX_INT INT_CHIP(1, 30) -+ -+#define ISD_MAILBOX_STATUS_IN_FULL (1 << 31) -+#define ISD_MAILBOX_STATUS_IN_EMPTY (1 << 30) -+#define ISD_MAILBOX_STATUS_OUT_FULL (1 << 29) -+#define ISD_MAILBOX_STATUS_OUT_EMPTY (1 << 28) -+ -+/* -+ * OCP-Security -+ */ -+#define SECURITY_BASE (OCP_BASE + OCP_SECURITY) -+#define SECURITY_BASE_EFFECTIVE_ADDRESS (SECURITY_BASE >> 7) // To load the base address in a single instruction -+#define SECURITY_CTRL 0x00 -+#define SECURITY_CTRL_BYTE_OFFSET(x) ((x) << 16) -+#define SECURITY_CTRL_KEY_SIZE(x) ((x) << 8) -+#define SECURITY_CTRL_HASH_ALG_NONE (0 << 4) -+#define SECURITY_CTRL_HASH_ALG_MD5 (1 << 4) -+#define SECURITY_CTRL_HASH_ALG_SHA1 (2 << 4) -+#define SECURITY_CTRL_CBC (1 << 3) -+#define SECURITY_CTRL_CIPHER_ALG_AES (0 << 1) -+#define SECURITY_CTRL_CIPHER_ALG_NONE (1 << 1) -+#define SECURITY_CTRL_CIPHER_ALG_DES (2 << 1) -+#define SECURITY_CTRL_CIPHER_ALG_3DES (3 << 1) -+#define SECURITY_CTRL_ENCIPHER (1 << 0) -+#define SECURITY_CTRL_DECIPHER (0 << 0) -+#define SECURITY_STAT 0x04 -+#define SECURITY_STAT_BUSY (1 << 0) -+#define SECURITY_KEY_VALUE(x) (0x10 + (x) * 4) -+#define SECURITY_KEY_IN(x) (0x30 + (x) * 4) -+#define SECURITY_KEY_OUT(x) (0x50 + (x) * 4) -+#define SECURITY_KEY_HASH(x) (0x70 + (x) * 4) -+ -+/* -+ * OCP-ICCR -+ */ -+#define ICCR_BASE (OCP_BASE + OCP_ICCR) -+#define ICACHE_TOTAL_SIZE 16384 /* in bytes */ -+ -+/* -+ * OCP-DCCR -+ */ -+#define DCCR_BASE (OCP_BASE + OCP_DCCR) -+#if defined(IP5000) || defined(IP5000_REV2) -+#define DCACHE_TOTAL_SIZE 8192 /* in bytes */ -+#elif defined(IP7000) || defined(IP7000_REV2) -+#define DCACHE_TOTAL_SIZE 16384 /* in bytes */ -+#endif -+ -+#if defined(IP5000) || defined(IP5000_REV2) || defined(IP7000) || defined(IP7000_REV2) -+#define DCACHE_WRITE_QUEUE_LENGTH 6 -+#else -+#error "Unknown IP5K silicon" -+#endif -+ -+#define CACHE_LINE_SIZE 32 /* in bytes */ -+ -+#define CCR_ADDR 0x00 -+#define CCR_RDD 0x04 -+#define CCR_WRD 0x08 -+#define CCR_STAT 0x0c -+#define CCR_CTRL 0x10 -+ -+#define CCR_STAT_MCBE 0 -+#define CCR_STAT_WIDEL 1 /* D-cache only */ -+ -+#define CCR_CTRL_DONE 0 -+#define CCR_CTRL_RESET 2 -+#define CCR_CTRL_VALID 3 -+#define CCR_CTRL_RD_DATA (1 << 4) -+#define CCR_CTRL_RD_TAG (2 << 4) -+#define CCR_CTRL_WR_DATA (3 << 4) -+#define CCR_CTRL_WR_TAG (4 << 4) -+#define CCR_CTRL_INV_INDEX (5 << 4) -+#define CCR_CTRL_INV_ADDR (6 << 4) -+#define CCR_CTRL_FLUSH_INDEX (7 << 4) /* D-cache only */ -+#define CCR_CTRL_FLUSH_INV_INDEX (8 << 4) /* D-cache only */ -+#define CCR_CTRL_FLUSH_ADDR (9 << 4) /* D-cache only */ -+#define CCR_CTRL_FLUSH_INV_ADDR (10 << 4) /* D-cache only */ -+ -+/* -+ * OCP-OCMC -+ */ -+#define OCMC_BASE (OCP_BASE + OCP_OCMC) -+#define OCMC_BANK_MASK 0x00 -+#define OCMC_BIST_CNTL 0x04 /* IP5000 only */ -+#define OCMC_BIST_STAT 0x08 /* IP5000 only */ -+ -+#define OCMC_BANK_PROG(n) ((1<<(n))-1) -+ -+#define OCMC_BIST_WRCK (1 << 7) -+#define OCMC_BIST_RESET (1 << 5) -+#define OCMC_BIST_SMART (1 << 4) -+#define OCMC_BIST_RUN (1 << 3) -+#define OCMC_BIST_REPAIR (1 << 2) -+ -+#define OCMC_BIST_READY (1 << 3) -+#define OCMC_BIST_FAIL (1 << 2) -+ -+/* -+ * OCP-STATISTICS -+ */ -+#define STATISTICS_BASE (OCP_BASE + OCP_STATISTICS) -+#define STAT_COUNTER_CTRL(n) ((n)*8) -+#define STAT_COUNTER(n) ((n)*8 + 4) -+ -+#define STAT_EVENT_MP_INST 0 -+#define STAT_EVENT_OCM_ACCESS 4 -+#define STAT_EVENT_OCM_REQ 5 -+#define STAT_EVENT_IC_REQ_INVAL 13 -+#define STAT_EVENT_IC_MISS_INVAL 14 -+#define STAT_EVENT_IC_REQ_INVAL_NACK 15 -+#define STAT_EVENT_IC_REQ_VAL 16 -+#define STAT_EVENT_IC_MISS_VAL 17 -+#define STAT_EVENT_IC_REQ_VAL_NACK 18 -+#define STAT_EVENT_IC_MISS_Q 19 -+#define STAT_EVENT_DC_RD_REQ 20 -+#define STAT_EVENT_DC_RD_MISS 21 -+#define STAT_EVENT_DC_WR_REQ 22 -+#define STAT_EVENT_DC_WR_MISS 23 -+#define STAT_EVENT_DC_MISS_Q 24 -+#define STAT_EVENT_DC_WB_FULL 25 -+#define STAT_EVENT_DC_REQ_NACK 26 -+#define STAT_EVENT_DC_CORE_REQ 27 -+#define STAT_EVENT_DC_MISS 28 -+#define STAT_EVENT_DC_EVICT 29 -+#define STAT_EVENT_TRUE 30 -+#define STAT_EVENT_FALSE 31 -+ -+/* -+ * OCP_MTEST -+ */ -+#define MTEST_BASE (OCP_BASE + OCP_MTEST) -+#define MTEST_ADDR 0x00 -+#define MTEST_WR 0x04 -+#define MTEST_RD 0x08 -+#define MTEST_CTRL 0x0c -+ -+/* -+ * OCP_MCFG (IP7000 only) -+ */ -+#define MCFG_BASE (OCP_BASE + OCP_MCFG) -+#define MCFG_CTRL 0x00 -+#define MCFG_WCFG 0x04 -+#define MCFG_RCFG 0x08 -+ -+/* -+ * Port registers -+ */ -+#define IO_BASE 0x02000000 -+#define RA (IO_BASE + 0x00000000) -+#define RB (IO_BASE + 0x00001000) -+#define RC (IO_BASE + 0x00002000) -+#define RD (IO_BASE + 0x00003000) -+#define RE (IO_BASE + 0x00004000) -+#define RF (IO_BASE + 0x00005000) -+#define RG (IO_BASE + 0x00006000) -+#define RH (IO_BASE + 0x00007000) -+#define RI (IO_BASE + 0x00008000) -+#define RJ (IO_BASE + 0x00009000) -+#define RLATCH (IO_BASE + 0x00ff0000) // For latched output only -+#define IO_PORT_BR_OFFSET 0x00000800 -+ -+/* -+ * General I/O Register Map (per port) -+ */ -+#define IO_FUNC 0x00 -+#define IO_GPIO_CTL 0x04 -+#define IO_GPIO_OUT 0x08 -+#define IO_GPIO_IN 0x0C -+#define IO_INT_STATUS 0x10 -+#define IO_INT_MASK 0x14 -+#define IO_INT_SET 0x18 -+#define IO_INT_CLR 0x1C -+#define IO_TX_FIFO 0x20 -+#define IO_TX_FIFO_HI 0x24 -+#define IO_RX_FIFO 0x28 -+#define IO_RX_FIFO_HI 0x2c -+#define IO_CTL0 0x30 -+#define IO_CTL1 0x34 -+#define IO_CTL2 0x38 -+#define IO_STATUS0 0x3c -+#define IO_STATUS1 0x40 -+#define IO_STATUS2 0x44 -+#define IO_FIFO_WATER 0x48 -+#define IO_FIFO_LEVEL 0x4c -+#define IO_GPIO_MASK 0x50 -+ -+#define IO_FUNC_FUNCTION_RESET(func) ((1 << ((func) - 1)) << 4) /* Function 0 doesn't need reset */ -+#define IO_FUNC_RX_FIFO (1 << 3) -+#define IO_FUNC_SELECT(func) ((func) << 0) -+ -+/* -+ * External interrupt pins. -+ */ -+#define EXT_INT_IO_BIT(pin) ((pin) + 5) // Interrupt pin number -> I/O INT bit -+#define EXT_INT_RISING_EDGE(pin) (0x2 << (2*(pin) + 7)) -+#define EXT_INT_FALLING_EDGE(pin) (0x1 << (2*(pin) + 7)) -+ -+/* -+ * Flash -+ */ -+#define IO_XFL_BASE RA -+ -+#define IO_XFL_INT_START (1 << 16) -+#define IO_XFL_INT_ERR (1 << 8) -+#define IO_XFL_INT_DONE (1 << 0) -+ -+#define IO_XFL_CTL0_MASK (0xffe07fff) -+#define IO_XFL_CTL0_RD_CMD(cmd) (((cmd) & 0xff) << 24) -+#define IO_XFL_CTL0_RD_DUMMY(n) (((n) & 0x7) << 21) -+#define IO_XFL_CTL0_CLK_WIDTH(core_cycles) ((((core_cycles) + 1) & 0x7e) << 8) /* must be even number */ -+#define IO_XFL_CTL0_CE_WAIT(spi_cycles) (((spi_cycles) & 0x3f) << 2) -+#define IO_XFL_CTL0_MCB_LOCK (1 << 1) -+#define IO_XFL_CTL0_ENABLE (1 << 0) -+#define IO_XFL_CTL0_FAST_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(0xb) | IO_XFL_CTL0_RD_DUMMY(1) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE) -+#define IO_XFL_CTL0_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(3) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE) -+ -+#define IO_XFL_CTL1_MASK (0xc0003fff) -+#define IO_XFL_CTL1_FC_INST(inst) (((inst) & 0x3) << 30) -+#define IO_XFL_CTL1_FC_DATA(n) (((n) & 0x3ff) << 4) -+#define IO_XFL_CTL1_FC_DUMMY(n) (((n) & 0x7) << 1) -+#define IO_XFL_CTL1_FC_ADDR (1 << 0) -+ -+#define IO_XFL_CTL2_FC_CMD(cmd) (((cmd) & 0xff) << 24) -+#define IO_XFL_CTL2_FC_ADDR(addr) ((addr) & 0x00ffffff) /* Only up to 24 bits */ -+ -+#define IO_XFL_STATUS0_MCB_ACTIVE (1 << 0) -+#define IO_XFL_STATUS0_IOPCS_ACTIVE (1 << 1) -+ -+/* -+ * SDRAM -+ */ -+#define IO_SDRAM_DATA_BASE RG -+#define IO_SDRAM_CNTL_BASE RH -+ -+#define IO_SDRAM_CTRL0_EN_REF (1 << 0) -+ -+/* -+ * Port function code (common fucntion codes for all I/O ports) -+ */ -+#define IO_PORTX_FUNC_GPIO 0x00 -+#define IO_PORTX_FUNC_XFL 0x01 -+#define IO_PORTX_FUNC_PCI 0x01 -+#define IO_PORTX_FUNC_SERDES 0x01 -+#define IO_PORTX_FUNC_GMII 0x01 -+#define IO_PORTX_FUNC_DDR 0x01 -+#define IO_PORTX_FUNC_PCIX 0x01 -+#define IO_PORTX_FUNC_USB2_0 0x01 -+#define IO_PORTX_FUNC_GPIO_INT_CLK 0x02 -+#define IO_PORTX_FUNC_PLIO 0x02 -+#define IO_PORTX_FUNC_GPIO_INT 0x03 -+#define IO_PORTX_FUNC_MII 0x03 -+ -+/* -+ * Port 0 -+ */ -+#define IO_PORT0_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT0_FUNC_XFL_INT_CLK IO_PORTX_FUNC_XFL // Default mode after reset -+#define IO_PORT0_FUNC_GPIO_INT_CLK IO_PORTX_FUNC_GPIO_INT_CLK -+#define IO_PORT0_FUNC_GPIO_INT IO_PORTX_FUNC_GPIO_INT -+ -+/* -+ * Port 1 -+ */ -+#define IO_PORT1_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT1_FUNC_PCI IO_PORTX_FUNC_PCI // PCI control -+#define IO_PORT1_FUNC_MII IO_PORTX_FUNC_MII // port 4 MII extension -+ -+/* -+ * Port 2 -+ */ -+#define IO_PORT2_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT2_FUNC_PCI IO_PORTX_FUNC_PCI // PCI data I/O -+#define IO_PORT2_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM -+ -+/* -+ * Port 3 -+ */ -+#define IO_PORT3_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT3_FUNC_SERDES IO_PORTX_FUNC_SERDES -+#define IO_PORT3_FUNC_PLIO IO_PORTX_FUNC_PLIO -+ -+/* -+ * Port 4 -+ */ -+#define IO_PORT4_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT4_FUNC_SERDES IO_PORTX_FUNC_SERDES -+#define IO_PORT4_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM -+#define IO_PORT4_FUNC_MII IO_PORTX_FUNC_MII -+ -+/* -+ * Port 5 -+ */ -+#define IO_PORT5_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT5_FUNC_GMII IO_PORTX_FUNC_GMII -+ -+/* -+ * Port 6 -+ */ -+#define IO_PORT6_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT6_FUNC_DDR IO_PORTX_FUNC_DDR -+ -+/* -+ * Port 7 -+ */ -+#define IO_PORT7_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT7_FUNC_DDR IO_PORTX_FUNC_DDR -+ -+/* -+ * Port 8 -+ */ -+#define IO_PORT8_FUNC_GPIO IO_PORTX_FUNC_GPIO -+#define IO_PORT8_FUNC_PCIX IO_PORTX_FUNC_PCIX -+#define IO_PORT8_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM -+#define IO_PORT8_FUNC_MII IO_PORTX_FUNC_MII // port 4 MII extension -+ -+/* -+ * Port 9 -+ */ -+#define IO_PORT9_FUNC_USB2_0 IO_PORTX_FUNC_USB2_0 -+ -+/* -+ * FIFO -+ */ -+#define IO_PORTX_INT_FIFO_TX_RESET (1 << 31) -+#define IO_PORTX_INT_FIFO_RX_RESET (1 << 30) -+#define IO_PORTX_INT_FIFO_TX_UF (1 << 15) -+#define IO_PORTX_INT_FIFO_TX_WM (1 << 14) -+#define IO_PORTX_INT_FIFO_RX_OF (1 << 13) -+#define IO_PORTX_INT_FIFO_RX_WM (1 << 12) -+ -+#define IO_PORTX_FUNC_FIFO_TX_WM(n) ((n) << 16) -+#define IO_PORTX_FUNC_FIFO_RX_WM(n) ((n) << 0) -+ -+/* -+ * MII -+ */ -+#define IO_PORTX_INT_MII_TX_ERR_SEND (1 << 18) -+#define IO_PORTX_INT_MII_TX_HALT (1 << 17) -+#define IO_PORTX_INT_MII_TX_START (1 << 16) -+#define IO_PORTX_INT_MII_THRESHOLD (1 << 8) -+#define IO_PORTX_INT_MII_RX_EOP (1 << 7) -+#define IO_PORTX_INT_MII_RX_SFD (1 << 6) -+#define IO_PORTX_INT_MII_RX_ERR (1 << 5) -+#define IO_PORTX_INT_MII_TX_EOP (1 << 4) -+#define IO_PORTX_INT_MII_COL (1 << 3) -+#define IO_PORTX_INT_MII_CRS (1 << 2) -+#define IO_PORTX_INT_MII_ODD_NIB_ERR (1 << 1) -+#define IO_PORTX_INT_MII_FALSE_CARRIER (1 << 0) -+ -+/* -+ * SerDes -+ */ -+#define IO_PORTX_INT_SERDES_TXBUF_VALID (1 << 16) -+#define IO_PORTX_INT_SERDES_RXERR (1 << 7) -+#define IO_PORTX_INT_SERDES_RXEOP (1 << 6) -+#define IO_PORTX_INT_SERDES_SYND (1 << 5) -+#define IO_PORTX_INT_SERDES_TXBE (1 << 4) -+#define IO_PORTX_INT_SERDES_TXEOP (1 << 3) -+#define IO_PORTX_INT_SERDES_SXLP (1 << 2) -+#define IO_PORTX_INT_SERDES_RXBF (1 << 1) -+#define IO_PORTX_INT_SERDES_RXCRS (1 << 0) -+ -+#ifndef __ASSEMBLY__ -+struct ubicom32_io_port { -+ volatile u32_t function; -+ volatile u32_t gpio_ctl; -+ volatile u32_t gpio_out; -+ volatile u32_t gpio_in; -+ volatile u32_t int_status; -+ volatile u32_t int_mask; -+ volatile u32_t int_set; -+ volatile u32_t int_clr; -+ volatile u32_t tx_fifo; -+ volatile u32_t tx_fifo_hi; -+ volatile u32_t rx_fifo; -+ volatile u32_t rx_fifo_hi; -+ volatile u32_t ctl0; -+ volatile u32_t ctl1; -+ volatile u32_t ctl2; -+ volatile u32_t status0; -+ volatile u32_t status1; -+ volatile u32_t status2; -+ volatile u32_t fifo_watermark; -+ volatile u32_t fifo_level; -+ volatile u32_t gpio_mask; -+}; -+ -+#define UBICOM32_IO_PORT(port) ((struct ubicom32_io_port *)((port))) -+#endif -+ -+#ifndef __ASSEMBLY__ -+/* -+ * ubicom32_set_interrupt() -+ */ -+extern inline void ubicom32_set_interrupt(u8_t interrupt) -+{ -+ u32_t ibit = INT_BIT_MASK(interrupt); -+ -+ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) { -+ asm volatile ( -+ "move.4 "D(INT_SET(INT_CHIP(0, 0)))", %0\n\t" -+ : -+ : "r" (ibit) -+ ); -+ -+ return; -+ } -+ -+ asm volatile ( -+ "move.4 "D(INT_SET(INT_CHIP(1, 0)))", %0\n\t" -+ : -+ : "r" (ibit) -+ ); -+} -+ -+/* -+ * ubicom32_clear_interrupt() -+ */ -+extern inline void ubicom32_clear_interrupt(u8_t interrupt) -+{ -+ u32_t ibit = INT_BIT_MASK(interrupt); -+ -+ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) { -+ asm volatile ( -+ "move.4 "D(INT_CLR(INT_CHIP(0, 0)))", %0\n\t" -+ : -+ : "r" (ibit) -+ ); -+ -+ return; -+ } -+ -+ asm volatile ( -+ "move.4 "D(INT_CLR(INT_CHIP(1, 0)))", %0\n\t" -+ : -+ : "r" (ibit) -+ ); -+} -+ -+/* -+ * ubicom32_enable_interrupt() -+ */ -+extern inline void ubicom32_enable_interrupt(u8_t interrupt) -+{ -+ u32_t ibit = INT_BIT_MASK(interrupt); -+ -+ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) { -+ asm volatile ( -+ "or.4 "D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t" -+ : -+ : "d" (ibit) -+ ); -+ -+ return; -+ } -+ -+ asm volatile ( -+ "or.4 "D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t" -+ : -+ : "d" (ibit) -+ ); -+} -+ -+/* -+ * ubicom32_disable_interrupt() -+ */ -+extern inline void ubicom32_disable_interrupt(u8_t interrupt) -+{ -+ u32_t ibit = ~INT_BIT_MASK(interrupt); -+ -+ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) { -+ asm volatile ( -+ "and.4 "D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t" -+ : -+ : "d" (ibit) -+ ); -+ -+ return; -+ } -+ -+ asm volatile ( -+ "and.4 "D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t" -+ : -+ : "d" (ibit) -+ ); -+} -+ -+/* -+ * ubicom32_enable_global_interrupts() -+ */ -+extern inline void ubicom32_enable_global_interrupts(void) -+{ -+ asm volatile( -+ "bset GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")" -+ ); -+} -+ -+/* -+ * ubicom32_disable_global_interrupts() -+ */ -+extern inline void ubicom32_disable_global_interrupts(void) -+{ -+ asm volatile( -+ "bclr GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")" -+ ); -+} -+ -+/* -+ * ubicom32_get_reset_reason() -+ */ -+extern inline u32_t ubicom32_get_reset_reason(void) -+{ -+ return *(u32_t *)(GENERAL_CFG_BASE + GEN_RESET_REASON); -+} -+ -+/* -+ * ubicom32_read_reg() -+ */ -+extern inline u32_t ubicom32_read_reg(volatile void *reg) -+{ -+ u32_t v; -+ asm volatile ( -+ "move.4 %[dest], %[src] \n\t" -+ : [dest] "=r" (v) -+ : [src] "m" (*(u32_t *)reg) -+ ); -+ return v; -+} -+ -+/* -+ * ubicom32_write_reg() -+ */ -+extern inline void ubicom32_write_reg(volatile void *reg, u32_t v) -+{ -+ asm volatile ( -+ "move.4 %[dest], %[src] \n\t" -+ : -+ : [src] "r" (v), [dest] "m" (*(u32_t *)reg) -+ ); -+} -+ -+#endif /* __ASSEMBLY__ */ -+#endif /* _ASM_UBICOM32_IP5000_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ipcbuf.h -@@ -0,0 +1,55 @@ -+/* -+ * arch/ubicom32/include/asm/ipcbuf.h -+ * Definition of ipc64_perm struct for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IPCBUF_H -+#define _ASM_UBICOM32_IPCBUF_H -+ -+/* -+ * The user_ipc_perm structure for m68k architecture. -+ * Note extra padding because this structure is passed back and forth -+ * between kernel and user space. -+ * -+ * Pad space is left for: -+ * - 32-bit mode_t and seq -+ * - 2 miscellaneous 32-bit values -+ */ -+struct ipc64_perm -+{ -+ __kernel_key_t key; -+ __kernel_uid32_t uid; -+ __kernel_gid32_t gid; -+ __kernel_uid32_t cuid; -+ __kernel_gid32_t cgid; -+ __kernel_mode_t mode; -+ unsigned short __pad1; -+ unsigned short seq; -+ unsigned short __pad2; -+ unsigned long __unused1; -+ unsigned long __unused2; -+}; -+ -+#endif /* _ASM_UBICOM32_IPCBUF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/irqflags.h -@@ -0,0 +1,94 @@ -+/* -+ * arch/ubicom32/include/asm/irqflags.h -+ * Raw implementation of local IRQ functions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IRQFLAGS_H -+#define _ASM_UBICOM32_IRQFLAGS_H -+ -+#include <linux/thread_info.h> -+#include <asm/ubicom32-common.h> -+#include <asm/smp.h> -+#include <asm/ldsr.h> -+ -+#if defined(CONFIG_PREEMPT) -+#error Not supported by Ubicom32 irq handling, yet! -+#endif -+ -+/* -+ * raw_local_irq_enable() -+ * Enable interrupts for this thread. -+ */ -+static inline void raw_local_irq_enable(void) -+{ -+ ldsr_local_irq_enable(); -+} -+ -+/* -+ * raw_local_irq_disable() -+ * Disable interrupts for this thread. -+ */ -+static inline void raw_local_irq_disable(void) -+{ -+ ldsr_local_irq_disable(); -+} -+ -+/* -+ * raw_local_save_flags() -+ * Get the current IRQ state. -+ */ -+#define raw_local_save_flags(flags) \ -+do { \ -+ (flags) = ldsr_local_irq_is_disabled(); \ -+} while (0) -+ -+/* -+ * raw_local_irq_save() -+ * Save the current interrupt state and disable interrupts. -+ */ -+#define raw_local_irq_save(flags) \ -+do { \ -+ (flags) = ldsr_local_irq_save(); \ -+} while (0) -+ -+/* -+ * raw_local_irq_restore() -+ * Restore the IRQ state back to flags. -+ */ -+static inline void raw_local_irq_restore(unsigned long flags) -+{ -+ ldsr_local_irq_restore(flags); -+} -+ -+/* -+ * raw_irqs_disabled_flags() -+ * Return true if the flags indicate that IRQ(s) are disabled. -+ */ -+static inline int raw_irqs_disabled_flags(unsigned long flags) -+{ -+ return (flags); -+} -+ -+#endif /* _ASM_UBICOM32_IRQFLAGS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/irq.h -@@ -0,0 +1,45 @@ -+/* -+ * arch/ubicom32/include/asm/irq.h -+ * IRQ definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IRQ_H -+#define _ASM_UBICOM32_IRQ_H -+ -+#include <asm/irqflags.h> -+ -+/* -+ * We setup the IRQS to cover the full range of interrupt registers in -+ * processor. -+ */ -+#define NR_IRQS 64 -+ -+#define irq_canonicalize(irq) (irq) -+ -+extern int irq_soft_alloc(unsigned int *soft); -+extern void ack_bad_irq(unsigned int irq); -+extern void do_IRQ(int irq, struct pt_regs *fp); -+ -+#endif /* _ASM_UBICOM32_IRQ_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/irq_regs.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/irq_regs.h -+ * Generic irq_regs.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_IRQ_REGS_H -+#define _ASM_UBICOM32_IRQ_REGS_H -+ -+#include <asm-generic/irq_regs.h> -+ -+#endif /* _ASM_UBICOM32_IRQ_REGS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/Kbuild -@@ -0,0 +1 @@ -+include include/asm-generic/Kbuild.asm ---- /dev/null -+++ b/arch/ubicom32/include/asm/kdebug.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/kdebug.h -+ * Generic kdebug.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_KDEBUG_H -+#define _ASM_UBICOM32_KDEBUG_H -+ -+#include <asm-generic/kdebug.h> -+ -+#endif /* _ASM_UBICOM32_KDEBUG_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/kmap_types.h -@@ -0,0 +1,48 @@ -+/* -+ * arch/ubicom32/include/asm/kmap_types.h -+ * Definition of km_type's for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_KMAP_TYPES_H -+#define _ASM_UBICOM32_KMAP_TYPES_H -+ -+enum km_type { -+ KM_BOUNCE_READ, -+ KM_SKB_SUNRPC_DATA, -+ KM_SKB_DATA_SOFTIRQ, -+ KM_USER0, -+ KM_USER1, -+ KM_BIO_SRC_IRQ, -+ KM_BIO_DST_IRQ, -+ KM_PTE0, -+ KM_PTE1, -+ KM_IRQ0, -+ KM_IRQ1, -+ KM_SOFTIRQ0, -+ KM_SOFTIRQ1, -+ KM_TYPE_NR -+}; -+ -+#endif /* _ASM_UBICOM32_KMAP_TYPES_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ldsr.h -@@ -0,0 +1,186 @@ -+/* -+ * arch/ubicom32/include/asm/ldsr.h -+ * Ubicom32 LDSR interface definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_LDSR_H -+#define _ASM_UBICOM32_LDSR_H -+ -+#include <asm/ubicom32-common.h> -+#include <asm/types.h> -+#include <asm/thread.h> -+ -+extern unsigned int ldsr_soft_irq_mask; -+ -+/* -+ * ldsr_local_irq_is_disabled() -+ * Test if interrupts are disabled for this thread? -+ */ -+static inline int ldsr_local_irq_is_disabled(void) -+{ -+ int ret; -+ thread_t self = thread_get_self(); -+ unsigned int mask = (1 << self); -+ -+ asm volatile ( -+ " and.4 %0, scratchpad1, %1 \n\t" -+ : "=r" (ret) -+ : "d" (mask) -+ : "cc" -+ ); -+ -+ /* -+ * We return a simple 1 == disabled, 0 == enabled -+ * losing which tid this is for, because Linux -+ * can restore interrupts on a different thread. -+ */ -+ return ret >> self; -+} -+ -+/* -+ * ldsr_local_irq_save() -+ * Get the current interrupt state and disable interrupts. -+ */ -+static inline unsigned int ldsr_local_irq_save(void) -+{ -+ int ret; -+ thread_t self = thread_get_self(); -+ unsigned int mask = (1 << self); -+ -+ /* -+ * Ensure the compiler can not optimize out the code -+ * (volatile) and that it does not "cache" values around -+ * the interrupt state change (memory). This ensures -+ * that interrupt changes are treated as a critical -+ * section. -+ */ -+ asm volatile ( -+ " and.4 %0, scratchpad1, %1 \n\t" -+ " or.4 scratchpad1, scratchpad1, %1 \n\t" -+ : "=&r" (ret) -+ : "d" (mask) -+ : "cc", "memory" -+ ); -+ -+ /* -+ * We return a simple 1 == disabled, 0 == enabled -+ * losing which tid this is for, because Linux -+ * can restore interrupts on a different thread. -+ */ -+ return ret >> self; -+} -+ -+/* -+ * ldsr_local_irq_restore() -+ * Restore this cpu's interrupt enable/disable state. -+ * -+ * Note: flags is either 0 or 1. -+ */ -+static inline void ldsr_local_irq_restore(unsigned int flags) -+{ -+ unsigned int temp; -+ thread_t self = thread_get_self(); -+ unsigned int mask = (1 << self); -+ flags = (flags << self); -+ -+ /* -+ * Ensure the compiler can not optimize out the code -+ * (volatile) and that it does not "cache" values around -+ * the interrupt state change (memory). This ensures -+ * that interrupt changes are treated as a critical -+ * section. -+ * -+ * Atomic change to our bit in scratchpad1 without -+ * causing any temporary glitch in the value and -+ * without effecting other values. Also this uses -+ * no branches so no penalties. -+ */ -+ asm volatile ( -+ " xor.4 %0, scratchpad1, %1 \n\t" -+ " and.4 %0, %2, %0 \n\t" -+ " xor.4 scratchpad1, scratchpad1, %0 \n\t" -+ " move.4 int_set0, %3 \n\t" -+ : "=&d"(temp) -+ : "d"(flags), "r"(mask), "r"(ldsr_soft_irq_mask) -+ : "cc", "memory" -+ ); -+} -+ -+/* -+ * ldsr_local_irq_disable_interrupt() -+ * Disable ints for this thread. -+ */ -+static inline void ldsr_local_irq_disable(void) -+{ -+ unsigned int mask = (1 << thread_get_self()); -+ -+ /* -+ * Ensure the compiler can not optimize out the code -+ * (volatile) and that it does not "cache" values around -+ * the interrupt state change (memory). This ensures -+ * that interrupt changes are treated as a critical -+ * section. -+ */ -+ asm volatile ( -+ " or.4 scratchpad1, scratchpad1, %0 \n\t" -+ : -+ : "d" (mask) -+ : "cc", "memory" -+ ); -+} -+ -+/* -+ * ldsr_local_irq_enable_interrupt -+ * Enable ints for this thread. -+ */ -+static inline void ldsr_local_irq_enable(void) -+{ -+ unsigned int mask = (1 << thread_get_self()); -+ -+ /* -+ * Ensure the compiler can not optimize out the code -+ * (volatile) and that it does not "cache" values around -+ * the interrupt state change (memory). This ensures -+ * that interrupt changes are treated as a critical -+ * section. -+ */ -+ asm volatile ( -+ " and.4 scratchpad1, scratchpad1, %0 \n\t" -+ " move.4 int_set0, %1 \n\t" -+ : -+ : "d" (~mask), "r" (ldsr_soft_irq_mask) -+ : "cc", "memory" -+ ); -+} -+ -+extern void ldsr_init(void); -+extern void ldsr_set_trap_irq(unsigned int irq); -+extern void ldsr_mask_vector(unsigned int vector); -+extern void ldsr_unmask_vector(unsigned int vector); -+extern void ldsr_enable_vector(unsigned int vector); -+extern void ldsr_disable_vector(unsigned int vector); -+extern thread_t ldsr_get_threadid(void); -+ -+#endif /* _ASM_UBICOM32_LDSR_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/linkage.h -@@ -0,0 +1,34 @@ -+/* -+ * arch/ubicom32/include/asm/linkage.h -+ * Definition of Ubicom32 architecture specific linkage types. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_LINKAGE_H -+#define _ASM_UBICOM32_LINKAGE_H -+ -+#define __ocm_text __section(.ocm_text) -+#define __ocm_data __section(.ocm_data) -+ -+#endif /* _ASM_UBICOM32_LINKAGE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/local.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/local.h -+ * Generic local.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_LOCAL_H -+#define _ASM_UBICOM32_LOCAL_H -+ -+#include <asm-generic/local.h> -+ -+#endif /* _ASM_UBICOM32_LOCAL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/machdep.h -@@ -0,0 +1,43 @@ -+/* -+ * arch/ubicom32/include/asm/machdep.h -+ * Machine dependent utility routines. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_MACHDEP_H -+#define _ASM_UBICOM32_MACHDEP_H -+ -+#include <linux/interrupt.h> -+ -+/* Hardware clock functions */ -+extern unsigned long hw_timer_offset(void); -+ -+/* machine dependent power off functions */ -+extern void (*mach_reset)(void); -+extern void (*mach_halt)(void); -+extern void (*mach_power_off)(void); -+ -+extern void config_BSP(char *command, int len); -+ -+#endif /* _ASM_UBICOM32_MACHDEP_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/mc146818rtc.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/mc146818rtc.h -+ * Generic mc146818rtc.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * Machine dependent access functions for RTC registers. -+ */ -+#ifndef _ASM_UBICOM32_MC146818RTC_H -+#define _ASM_UBICOM32_MC146818RTC_H -+ -+/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */ -+ -+#endif /* _ASM_UBICOM32_MC146818RTC_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/mman.h -@@ -0,0 +1,44 @@ -+/* -+ * arch/ubicom32/include/asm/mman.h -+ * Memory mapping definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_MMAN_H -+#define _ASM_UBICOM32_MMAN_H -+ -+#include <asm-generic/mman.h> -+ -+#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -+#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -+#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -+#define MAP_LOCKED 0x2000 /* pages are locked */ -+#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -+#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -+#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -+ -+#define MCL_CURRENT 1 /* lock all current mappings */ -+#define MCL_FUTURE 2 /* lock all future mappings */ -+ -+#endif /* _ASM_UBICOM32_MMAN_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/mmu_context.h -@@ -0,0 +1,60 @@ -+/* -+ * arch/ubicom32/include/asm/mmu_context.h -+ * MMU context definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_MMU_CONTEXT_H -+#define _ASM_UBICOM32_MMU_CONTEXT_H -+ -+#include <asm/setup.h> -+#include <asm/page.h> -+#include <asm/pgalloc.h> -+ -+static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) -+{ -+} -+ -+extern inline int -+init_new_context(struct task_struct *tsk, struct mm_struct *mm) -+{ -+ // mm->context = virt_to_phys(mm->pgd); -+ return(0); -+} -+ -+#define destroy_context(mm) do { } while(0) -+ -+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) -+{ -+} -+ -+#define deactivate_mm(tsk,mm) do { } while (0) -+ -+extern inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm) -+{ -+} -+ -+#endif /* _ASM_UBICOM32_MMU_CONTEXT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/mmu.h -@@ -0,0 +1,41 @@ -+/* -+ * arch/ubicom32/include/asm/mmu.h -+ * Definition of mm_context_t struct for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2002, David McCullough <davidm@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_MMU_H -+#define _ASM_UBICOM32_MMU_H -+ -+typedef struct { -+ struct vm_list_struct *vmlist; -+ unsigned long end_brk; -+#ifdef CONFIG_BINFMT_ELF_FDPIC -+ unsigned long exec_fdpic_loadmap; -+ unsigned long interp_fdpic_loadmap; -+#endif -+} mm_context_t; -+ -+#endif /* _ASM_UBICOM32_MMU_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/module.h -@@ -0,0 +1,44 @@ -+/* -+ * arch/ubicom32/include/asm/module.h -+ * Ubicom32 architecture specific module definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_MODULE_H -+#define _ASM_UBICOM32_MODULE_H -+ -+struct mod_arch_specific { -+ void *ocm_inst; -+ int ocm_inst_size; -+}; -+ -+#define Elf_Shdr Elf32_Shdr -+#define Elf_Sym Elf32_Sym -+#define Elf_Ehdr Elf32_Ehdr -+ -+#define ARCH_PROC_MODULES_EXTRA(m,mod) \ -+ seq_printf(m, " OCM(%d bytes @ 0x%p)", \ -+ (mod)->arch.ocm_inst_size, (mod)->arch.ocm_inst) -+ -+#endif /* _ASM_UBICOM32_MODULE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/msgbuf.h -@@ -0,0 +1,58 @@ -+/* -+ * arch/ubicom32/include/asm/msgbuf.h -+ * Definition of msqid64_ds struct for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_MSGBUF_H -+#define _ASM_UBICOM32_MSGBUF_H -+ -+/* -+ * The msqid64_ds structure for ubicom32 architecture. -+ * Note extra padding because this structure is passed back and forth -+ * between kernel and user space. -+ * -+ * Pad space is left for: -+ * - 64-bit time_t to solve y2038 problem -+ * - 2 miscellaneous 32-bit values -+ */ -+ -+struct msqid64_ds { -+ struct ipc64_perm msg_perm; -+ __kernel_time_t msg_stime; /* last msgsnd time */ -+ unsigned long __unused1; -+ __kernel_time_t msg_rtime; /* last msgrcv time */ -+ unsigned long __unused2; -+ __kernel_time_t msg_ctime; /* last change time */ -+ unsigned long __unused3; -+ unsigned long msg_cbytes; /* current number of bytes on queue */ -+ unsigned long msg_qnum; /* number of messages in queue */ -+ unsigned long msg_qbytes; /* max number of bytes on queue */ -+ __kernel_pid_t msg_lspid; /* pid of last msgsnd */ -+ __kernel_pid_t msg_lrpid; /* last receive pid */ -+ unsigned long __unused4; -+ unsigned long __unused5; -+}; -+ -+#endif /* _ASM_UBICOM32_MSGBUF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/mutex.h -@@ -0,0 +1,41 @@ -+/* -+ * arch/ubicom32/include/asm/mutex.h -+ * Generic mutex.h for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * Pull in the generic implementation for the mutex fastpath. -+ * -+ * TODO: implement optimized primitives instead, or leave the generic -+ * implementation in place, or pick the atomic_xchg() based generic -+ * implementation. (see asm-generic/mutex-xchg.h for details) -+ */ -+ -+#ifndef _ASM_UBICOM32_MUTEX_H -+#define _ASM_UBICOM32_MUTEX_H -+ -+#include <asm-generic/mutex-dec.h> -+ -+#endif /* _ASM_UBICOM32_MUTEX_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/namei.h -@@ -0,0 +1,38 @@ -+/* -+ * arch/ubicom32/include/asm/namei.h -+ * Definition of __emul_prefix() for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_NAMEI_H -+#define _ASM_UBICOM32_NAMEI_H -+ -+/* This dummy routine maybe changed to something useful -+ * for /usr/gnemul/ emulation stuff. -+ * Look at asm-sparc/namei.h for details. -+ */ -+ -+#define __emul_prefix() NULL -+ -+#endif /* _ASM_UBICOM32_NAMEI_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ocm-alloc.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/ocm-alloc.h -+ * Ubicom32 architecture specific ocm definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_OCM_ALLOC_H -+#define _ASM_UBICOM32_OCM_ALLOC_H -+ -+ -+extern void *ocm_inst_alloc(size_t size, pid_t pid); -+extern int ocm_free(const void *ptr); -+extern int ocm_inst_free(const void *ptr); -+ -+#endif /* _ASM_UBICOM32_OCM_ALLOC_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ocm_size.h -@@ -0,0 +1,2 @@ -+#define APP_OCM_CODE_SIZE (0x3ffc2e00-0x3ffc0000) -+#define APP_OCM_DATA_SIZE (0x3ffd3500-0x3ffc8000) ---- /dev/null -+++ b/arch/ubicom32/include/asm/ocm_text.lds.inc -@@ -0,0 +1,175 @@ -+/* -+ * arch/ubicom32/include/asm/ocm_text.lds.inc -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+*(.text.do_csum) -+*(.text.tcp_packet) -+*(.text.ipt_do_table) -+*(.text.nf_conntrack_in) -+*(.text.ip_forward) -+*(.text.dev_queue_xmit) -+*(.text.netif_receive_skb) -+*(.text.ip_route_input) -+*(.text.ip_finish_output) -+*(.text.nf_iterate) -+*(.text.__hash_conntrack) -+*(.text.memset) -+*(.text.memcpy) -+*(.text.ip_rcv) -+*(.text.__nf_conntrack_find) -+*(.text.dev_hard_start_xmit) -+*(.text.vlan_dev_hard_start_xmit) -+*(.text.vlan_dev_hard_header) -+*(.text.__nf_ct_refresh_acct) -+*(.text.tcp_error) -+*(.text.pfifo_fast_enqueue) -+*(.text.ipv4_confirm) -+*(.text.ip_output) -+*(.text.neigh_connected_output) -+*(.text.nf_hook_slow) -+*(.text.nf_nat_packet) -+*(.text.local_bh_enable) -+*(.text.pfifo_fast_dequeue) -+*(.text.ubi32_eth_receive) -+*(.text.nf_nat_fn) -+*(.text.skb_checksum) -+*(.text.memmove) -+*(.text.ubi32_eth_tx_done) -+*(.text.eth_header) -+*(.text.skb_release_data) -+*(.text.nf_conntrack_find_get) -+*(.text.process_backlog) -+*(.text.vlan_skb_recv) -+*(.text.ip_rcv_finish) -+*(.text.__qdisc_run) -+*(.text.skb_push) -+*(.text.eth_type_trans) -+*(.text.__alloc_skb) -+*(.text.netif_rx) -+*(.text.nf_ip_checksum) -+*(.text.__skb_checksum_complete_head) -+*(.text.ipv4_conntrack_defrag) -+*(.text.tcp_pkt_to_tuple) -+*(.text.kfree) -+*(.text.tcp_manip_pkt) -+*(.text.skb_put) -+*(.text.nf_ct_get_tuple) -+*(.text.__kmalloc) -+*(.text.ubi32_eth_start_xmit) -+*(.text.free_block) -+*(.text.ipt_hook) -+*(.text.kmem_cache_free) -+*(.text.skb_pull_rcsum) -+*(.text.cache_alloc_refill) -+*(.text.skb_release_head_state) -+*(.text.manip_pkt) -+*(.text.ip_sabotage_in) -+*(.text.ip_forward_finish) -+*(.text.kmem_cache_alloc) -+*(.text.local_bh_disable) -+*(.text.ipv4_pkt_to_tuple) -+*(.text.inet_proto_csum_replace4) -+*(.text.__nf_ct_l4proto_find) -+*(.text.csum_partial) -+*(.text.neigh_resolve_output) -+*(.text.__kfree_skb) -+*(.text.kfree_skb) -+*(.text.__find_vlan_dev) -+*(.text.ldsr_ctxsw_thread) -+*(.text.__do_IRQ) -+*(.text.skb_pull) -+*(.text.ipv4_invert_tuple) -+*(.text.nf_ct_invert_tuplepr) -+*(.text.skb_make_writable) -+*(.text.ipv4_get_l4proto) -+*(.text.handle_IRQ_event) -+*(.text.net_rx_action) -+*(.text.__do_softirq) -+*(.text.nf_nat_in) -+*(.text.note_interrupt) -+*(.text.ipv4_conntrack_in) -+*(.text.dst_release) -+*(.text.tasklet_action) -+*(.text.nf_nat_out) -+*(.text.nf_ct_invert_tuple) -+*(.text.do_IRQ) -+*(.text.__tasklet_schedule) -+*(.text.__skb_checksum_complete) -+*(.text.ubi32_eth_interrupt) -+*(.text.dev_kfree_skb_any) -+*(.text.ret_from_interrupt_to_kernel) -+*(.text.preemptive_context_save) -+*(.text.irq_ack_vector) -+*(.text.update_wall_time) -+*(.text.ldsr_thread) -+*(.text.irq_exit) -+*(.text.ubi32_eth_do_tasklet) -+*(.text.__napi_schedule) -+*(.text.idle_cpu) -+*(.text.run_timer_softirq) -+*(.text.ldsr_mask_vector) -+*(.text.irq_enter) -+*(.text.ldsr_get_lsb) -+*(.text.ldsr_unmask_vector) -+*(.text.ip_fast_csum) -+*(.text.hrtimer_run_queues) -+*(.text.tcp_invert_tuple) -+*(.text.T___705) -+*(.text.run_posix_cpu_timers) -+*(.text.free_hot_cold_page) -+*(.text.lock_timer_base) -+*(.text.calc_delta_mine) -+*(.text.slab_destroy) -+*(.text.rcu_pending) -+*(.text.scheduler_tick) -+*(.text.hrtimer_run_pending) -+*(.text.do_softirq) -+*(.text.del_timer) -+*(.text.irq_end_vector) -+*(.text.pci_read_u32) -+*(.text.udivmodsi4) -+*(.text.memcmp) -+*(.text.memset) -+*(.text.__slab_alloc) -+*(.text.br_handle_frame) -+*(.text.br_fdb_update) -+*(.text.__br_fdb_get) -+*(.text.br_forward) -+*(.text.br_handle_frame_finish) -+*(.text.pci_write_u32) -+*(.text.kmem_freepages) -+*(.text.br_dev_queue_push_xmit) -+*(.text.ioread32) -+*(.text.next_zones_zonelist) -+*(.text.ubi32_pci_read_u32) -+*(.text.zone_watermark_ok) -+*(.text.__rmqueue_smallest) -+*(.text.ubi32_eth_napi_poll) -+*(.text.ubi32_pci_write_u32) -+*(.text.ubi32_pci_read_u32) -+*(.text._local_bh_enable) -+*(.text._local_bh_disable) -+*(.text.get_slab) ---- /dev/null -+++ b/arch/ubicom32/include/asm/page.h -@@ -0,0 +1,106 @@ -+/* -+ * arch/ubicom32/include/asm/page.h -+ * Memory page related operations and definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PAGE_H -+#define _ASM_UBICOM32_PAGE_H -+ -+/* PAGE_SHIFT determines the page size */ -+ -+#define PAGE_SHIFT 12 -+#define PAGE_SIZE (1 << PAGE_SHIFT) -+#define PAGE_MASK (~(PAGE_SIZE-1)) -+ -+#include <asm/setup.h> -+ -+#ifndef __ASSEMBLY__ -+ -+#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) -+#define free_user_page(page, addr) free_page(addr) -+ -+#define clear_page(page) memset((page), 0, PAGE_SIZE) -+#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) -+ -+#define clear_user_page(page, vaddr, pg) clear_page(page) -+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -+ -+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ -+ alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) -+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE -+ -+/* -+ * These are used to make use of C type-checking.. -+ */ -+typedef struct { unsigned long pte; } pte_t; -+typedef struct { unsigned long pmd[16]; } pmd_t; -+typedef struct { unsigned long pgd; } pgd_t; -+typedef struct { unsigned long pgprot; } pgprot_t; -+typedef struct page *pgtable_t; -+ -+#define pte_val(x) ((x).pte) -+#define pmd_val(x) ((&x)->pmd[0]) -+#define pgd_val(x) ((x).pgd) -+#define pgprot_val(x) ((x).pgprot) -+ -+#define __pte(x) ((pte_t) { (x) } ) -+#define __pmd(x) ((pmd_t) { (x) } ) -+#define __pgd(x) ((pgd_t) { (x) } ) -+#define __pgprot(x) ((pgprot_t) { (x) } ) -+ -+extern unsigned long memory_start; -+extern unsigned long memory_end; -+ -+#endif /* !__ASSEMBLY__ */ -+ -+#include <asm/page_offset.h> -+ -+#define PAGE_OFFSET (PAGE_OFFSET_RAW) -+ -+#ifndef __ASSEMBLY__ -+ -+#define __pa(vaddr) virt_to_phys((void *)(vaddr)) -+#define __va(paddr) phys_to_virt((unsigned long)(paddr)) -+ -+#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) -+#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) -+ -+#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) -+#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) -+ -+#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) -+#define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) -+#define pfn_valid(pfn) ((pfn) < max_mapnr) -+ -+#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ -+ ((void *)(kaddr) < (void *)memory_end)) -+ -+#endif /* __ASSEMBLY__ */ -+ -+#ifdef __KERNEL__ -+#include <asm-generic/page.h> -+#endif -+ -+#endif /* _ASM_UBICOM32_PAGE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/page_offset.h -@@ -0,0 +1,35 @@ -+/* -+ * arch/ubicom32/include/asm/page_offset.h -+ * Definition of PAGE_OFFSET_RAW for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_PAGE_OFFSET_H -+#define _ASM_UBICOM32_PAGE_OFFSET_H -+ -+/* This handles the memory map.. */ -+#define PAGE_OFFSET_RAW 0x3ffc0000 -+ -+#endif /* _ASM_UBICOM32_PAGE_OFFSET_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/param.h -@@ -0,0 +1,49 @@ -+/* -+ * arch/ubicom32/include/asm/param.h -+ * Definition of miscellaneous constants, including HZ. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PARAM_H -+#define _ASM_UBICOM32_PARAM_H -+ -+#ifdef __KERNEL__ -+#define HZ CONFIG_HZ -+#define USER_HZ HZ -+#define CLOCKS_PER_SEC (USER_HZ) -+#endif -+ -+#ifndef HZ -+#define HZ 100 -+#endif -+ -+#define EXEC_PAGESIZE 4096 -+ -+#ifndef NOGROUP -+#define NOGROUP (-1) -+#endif -+ -+#define MAXHOSTNAMELEN 64 /* max length of hostname */ -+ -+#endif /* _ASM_UBICOM32_PARAM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/pci.h -@@ -0,0 +1,210 @@ -+/* -+ * arch/ubicom32/include/asm/pci.h -+ * Definitions of PCI operations for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PCI_H -+#define _ASM_UBICOM32_PCI_H -+ -+#include <asm/io.h> -+ -+/* The PCI address space does equal the physical memory -+ * address space. The networking and block device layers use -+ * this boolean for bounce buffer decisions. -+ */ -+#define PCI_DMA_BUS_IS_PHYS (1) -+ -+ -+ -+/* -+ * Perform a master read/write to the PCI bus. -+ * These functions return a PCI_RESP_xxx code. -+ */ -+extern u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data); -+extern u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data); -+extern u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data); -+extern u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data); -+extern u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data); -+extern u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data); -+ -+ -+#define PCIBIOS_MIN_IO 0x100 -+#define PCIBIOS_MIN_MEM 0x10000000 -+ -+#define pcibios_assign_all_busses() 0 -+#define pcibios_scan_all_fns(a, b) 0 -+extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, -+ struct resource *res); -+ -+extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, -+ struct pci_bus_region *region); -+ -+struct pci_sys_data; -+struct pci_bus; -+ -+struct hw_pci { -+ struct list_head buses; -+ int nr_controllers; -+ int (*setup)(int nr, struct pci_sys_data *); -+ struct pci_bus *(*scan)(int nr, struct pci_sys_data *); -+ void (*preinit)(void); -+ void (*postinit)(void); -+ u8 (*swizzle)(struct pci_dev *dev, u8 *pin); -+ int (*map_irq)(struct pci_dev *dev, u8 slot, u8 pin); -+}; -+ -+/* -+ * Per-controller structure -+ */ -+struct pci_sys_data { -+ struct list_head node; -+ int busnr; /* primary bus number */ -+ u64 mem_offset; /* bus->cpu memory mapping offset */ -+ unsigned long io_offset; /* bus->cpu IO mapping offset */ -+ struct pci_bus *bus; /* PCI bus */ -+ struct resource *resource[3]; /* Primary PCI bus resources */ -+ /* Bridge swizzling */ -+ u8 (*swizzle)(struct pci_dev *, u8 *); -+ /* IRQ mapping */ -+ int (*map_irq)(struct pci_dev *, u8, u8); -+ struct hw_pci *hw; -+}; -+ -+static inline struct resource * -+pcibios_select_root(struct pci_dev *pdev, struct resource *res) -+{ -+ struct resource *root = NULL; -+ -+ if (res->flags & IORESOURCE_IO) -+ root = &ioport_resource; -+ if (res->flags & IORESOURCE_MEM) -+ root = &iomem_resource; -+ -+ return root; -+} -+ -+static inline void pcibios_set_master(struct pci_dev *dev) -+{ -+ /* No special bus mastering setup handling */ -+} -+#define HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE 1 -+#define HAVE_ARCH_PCI_SET_DMA_SEGMENT_BOUNDARY 1 -+ -+#ifdef CONFIG_PCI -+static inline void * pci_alloc_consistent(struct pci_dev *hwdev, size_t size, -+ dma_addr_t *dma_handle) -+{ -+ void *vaddr = kmalloc(size, GFP_KERNEL); -+ if(vaddr != NULL) { -+ *dma_handle = virt_to_phys(vaddr); -+ } -+ return vaddr; -+} -+ -+static inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask) -+{ -+ return 1; -+} -+ -+static inline void pci_free_consistent(struct pci_dev *hwdev, size_t size, -+ void *cpu_addr, dma_addr_t dma_handle) -+{ -+ kfree(cpu_addr); -+ return; -+} -+ -+static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, -+ size_t size, int direction) -+{ -+ return virt_to_phys(ptr); -+} -+ -+static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, -+ size_t size, int direction) -+{ -+ return; -+} -+ -+static inline dma_addr_t -+pci_map_page(struct pci_dev *hwdev, struct page *page, -+ unsigned long offset, size_t size, int direction) -+{ -+ return pci_map_single(hwdev, page_address(page) + offset, size, (int)direction); -+} -+ -+static inline void -+pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address, -+ size_t size, int direction) -+{ -+ pci_unmap_single(hwdev, dma_address, size, direction); -+} -+ -+static inline int -+pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, -+ int nents, int direction) -+{ -+ return nents; -+} -+ -+static inline void -+pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, -+ int nents, int direction) -+{ -+} -+ -+static inline void -+pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, -+ int nelems, int direction) -+{ -+} -+ -+static inline void -+pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, -+ int nelems, int direction) -+{ -+} -+ -+static inline void -+pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, -+ size_t size, int direction) -+{ -+} -+ -+static inline void -+pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, -+ size_t size, int direction) -+{ -+} -+ -+static inline int -+pci_dma_mapping_error(struct pci_dev *hwdev, dma_addr_t dma_addr) -+{ -+ return dma_addr == 0; -+} -+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -+extern void pci_iounmap(struct pci_dev *dev, void __iomem *); -+#endif -+ -+#endif /* _ASM_UBICOM32_PCI_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/percpu.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/percpu.h -+ * Generic percpu.h for the Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PERCPU_H -+#define _ASM_UBICOM32_PERCPU_H -+ -+#include <asm-generic/percpu.h> -+ -+#endif /* _ASM_UBICOM32_PERCPU_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/pgalloc.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/pgalloc.h -+ * Page table allocation definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PGALLOC_H -+#define _ASM_UBICOM32_PGALLOC_H -+ -+#include <linux/mm.h> -+#include <asm/setup.h> -+ -+#define check_pgt_cache() do { } while (0) -+ -+#endif /* _ASM_UBICOM32_PGALLOC_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/pgtable.h -@@ -0,0 +1,124 @@ -+/* -+ * arch/ubicom32/include/asm/pgtable.h -+ * Ubicom32 pseudo page table definitions and operations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004 Microtronix Datacom Ltd -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * and various works, Alpha, ix86, M68K, Sparc, ...et al -+ */ -+#ifndef _ASM_UBICOM32_PGTABLE_H -+#define _ASM_UBICOM32_PGTABLE_H -+ -+#include <asm-generic/4level-fixup.h> -+ -+//vic - this bit copied from m68knommu version -+#include <asm/setup.h> -+#include <asm/io.h> -+#include <linux/sched.h> -+ -+typedef pte_t *pte_addr_t; -+ -+#define pgd_present(pgd) (1) /* pages are always present on NO_MM */ -+#define pgd_none(pgd) (0) -+#define pgd_bad(pgd) (0) -+#define pgd_clear(pgdp) -+#define kern_addr_valid(addr) (1) -+#define pmd_offset(a, b) ((void *)0) -+ -+#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ -+#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ -+#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ -+#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ -+#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ -+//vic - this bit copied from m68knommu version -+ -+extern void paging_init(void); -+#define swapper_pg_dir ((pgd_t *) 0) -+ -+#define __swp_type(x) (0) -+#define __swp_offset(x) (0) -+#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -+#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -+ -+/* -+ * pgprot_noncached() is only for infiniband pci support, and a real -+ * implementation for RAM would be more complicated. -+ */ -+#define pgprot_noncached(prot) (prot) -+ -+static inline int pte_file(pte_t pte) { return 0; } -+ -+/* -+ * ZERO_PAGE is a global shared page that is always zero: used -+ * for zero-mapped memory areas etc.. -+ */ -+#define ZERO_PAGE(vaddr) (virt_to_page(0)) -+ -+extern unsigned int kobjsize(const void *objp); -+extern int is_in_rom(unsigned long); -+ -+/* -+ * No page table caches to initialise -+ */ -+#define pgtable_cache_init() do { } while (0) -+ -+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ -+ remap_pfn_range(vma, vaddr, pfn, size, prot) -+ -+extern inline void flush_cache_mm(struct mm_struct *mm) -+{ -+} -+ -+extern inline void flush_cache_range(struct mm_struct *mm, -+ unsigned long start, -+ unsigned long end) -+{ -+} -+ -+/* Push the page at kernel virtual address and clear the icache */ -+extern inline void flush_page_to_ram (unsigned long address) -+{ -+} -+ -+/* Push n pages at kernel virtual address and clear the icache */ -+extern inline void flush_pages_to_ram (unsigned long address, int n) -+{ -+} -+ -+/* -+ * All 32bit addresses are effectively valid for vmalloc... -+ * Sort of meaningless for non-VM targets. -+ */ -+#define VMALLOC_START 0 -+#define VMALLOC_END 0xffffffff -+ -+#define arch_enter_lazy_mmu_mode() do {} while (0) -+#define arch_leave_lazy_mmu_mode() do {} while (0) -+#define arch_flush_lazy_mmu_mode() do {} while (0) -+#define arch_enter_lazy_cpu_mode() do {} while (0) -+#define arch_leave_lazy_cpu_mode() do {} while (0) -+#define arch_flush_lazy_cpu_mode() do {} while (0) -+ -+#endif /* _ASM_UBICOM32_PGTABLE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/poll.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/poll.h -+ * Ubicom32 specific poll() related flags definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_POLL_H -+#define _ASM_UBICOM32_POLL_H -+ -+#define POLLWRNORM POLLOUT -+#define POLLWRBAND 0x0100 -+ -+#include <asm-generic/poll.h> -+ -+#endif /* _ASM_UBICOM32_POLL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/posix_types.h -@@ -0,0 +1,93 @@ -+/* -+ * arch/ubicom32/include/asm/posix_types.h -+ * Ubicom32 architecture posix types. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004 Microtronix Datacom Ltd -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef __ARCH_UBICOM32_POSIX_TYPES_H -+#define __ARCH_UBICOM32_POSIX_TYPES_H -+ -+/* -+ * This file is generally used by user-level software, so you need to -+ * be a little careful about namespace pollution etc. Also, we cannot -+ * assume GCC is being used. -+ */ -+ -+typedef unsigned long __kernel_ino_t; -+typedef unsigned short __kernel_mode_t; -+typedef unsigned short __kernel_nlink_t; -+typedef long __kernel_off_t; -+typedef int __kernel_pid_t; -+typedef unsigned short __kernel_ipc_pid_t; -+typedef unsigned short __kernel_uid_t; -+typedef unsigned short __kernel_gid_t; -+typedef unsigned int __kernel_size_t; -+typedef int __kernel_ssize_t; -+typedef int __kernel_ptrdiff_t; -+typedef long __kernel_time_t; -+typedef long __kernel_suseconds_t; -+typedef long __kernel_clock_t; -+typedef int __kernel_timer_t; -+typedef int __kernel_clockid_t; -+typedef int __kernel_daddr_t; -+typedef char * __kernel_caddr_t; -+typedef unsigned short __kernel_uid16_t; -+typedef unsigned short __kernel_gid16_t; -+typedef unsigned int __kernel_uid32_t; -+typedef unsigned int __kernel_gid32_t; -+ -+typedef unsigned short __kernel_old_uid_t; -+typedef unsigned short __kernel_old_gid_t; -+typedef unsigned short __kernel_old_dev_t; -+ -+#ifdef __GNUC__ -+typedef long long __kernel_loff_t; -+#endif -+ -+typedef struct { -+#if defined(__KERNEL__) || defined(__USE_ALL) -+ int val[2]; -+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */ -+ int __val[2]; -+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */ -+} __kernel_fsid_t; -+ -+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) -+ -+#undef __FD_SET -+#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d)) -+ -+#undef __FD_CLR -+#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d)) -+ -+#undef __FD_ISSET -+#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) -+ -+#undef __FD_ZERO -+#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp))) -+ -+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */ -+ -+#endif ---- /dev/null -+++ b/arch/ubicom32/include/asm/processor.h -@@ -0,0 +1,163 @@ -+/* -+ * arch/ubicom32/include/asm/processor.h -+ * Thread related definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1995 Hamish Macdonald -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_PROCESSOR_H -+#define _ASM_UBICOM32_PROCESSOR_H -+ -+/* -+ * Default implementation of macro that returns current -+ * instruction pointer ("program counter"). -+ */ -+#define current_text_addr() ({ __label__ _l; _l: &&_l;}) -+ -+#include <linux/compiler.h> -+#include <linux/threads.h> -+#include <asm/types.h> -+#include <asm/segment.h> -+#include <asm/fpu.h> -+#include <asm/ptrace.h> -+#include <asm/current.h> -+#include <asm/thread_info.h> -+ -+#if defined(CONFIG_UBICOM32_V3) -+ #define CPU "IP5K" -+#endif -+#if defined(CONFIG_UBICOM32_V4) -+ #define CPU "IP7K" -+#endif -+#ifndef CPU -+ #define CPU "UNKNOWN" -+#endif -+ -+/* -+ * User space process size: 1st byte beyond user address space. -+ */ -+extern unsigned long memory_end; -+#define TASK_SIZE (memory_end) -+ -+/* -+ * This decides where the kernel will search for a free chunk of vm -+ * space during mmap's. We won't be using it -+ */ -+#define TASK_UNMAPPED_BASE 0 -+ -+/* -+ * This is the structure where we are going to save callee-saved registers. -+ * A5 is the return address, A7 is the stack pointer, A6 is the frame -+ * pointer. This is the frame that is created because of switch_to. This -+ * is not the frame due to interrupt preemption or because of syscall entry. -+ */ -+ -+struct thread_struct { -+ unsigned long d10; /* D10 */ -+ unsigned long d11; /* D11 */ -+ unsigned long d12; /* D12 */ -+ unsigned long d13; /* D13 */ -+ unsigned long a1; /* A1 */ -+ unsigned long a2; /* A2 */ -+ unsigned long a5; /* A5 return address. */ -+ unsigned long a6; /* A6 */ -+ unsigned long sp; /* A7 kernel stack pointer. */ -+}; -+ -+#define INIT_THREAD { \ -+ 0, 0, 0, 0, 0, 0, 0, 0, \ -+ sizeof(init_stack) + (unsigned long) init_stack - 8, \ -+} -+ -+/* -+ * Do necessary setup to start up a newly executed thread. -+ * -+ * pass the data segment into user programs if it exists, -+ * it can't hurt anything as far as I can tell -+ */ -+/* -+ * Do necessary setup to start up a newly executed thread. -+ */ -+#define start_thread(regs, new_pc, new_sp) \ -+ do { \ -+ regs->pc = new_pc & ~3; \ -+ regs->an[5] = new_pc & ~3; \ -+ regs->an[7] = new_sp; \ -+ regs->nesting_level = -1; \ -+ regs->frame_type = UBICOM32_FRAME_TYPE_NEW_THREAD; \ -+ regs->thread_type = NORMAL_THREAD; \ -+ } while(0) -+ -+/* Forward declaration, a strange C thing */ -+struct task_struct; -+ -+/* Free all resources held by a thread. */ -+static inline void release_thread(struct task_struct *dead_task) -+{ -+} -+ -+/* Prepare to copy thread state - unlazy all lazy status */ -+#define prepare_to_copy(tsk) do { } while (0) -+ -+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); -+ -+/* -+ * Free current thread data structures etc.. -+ */ -+static inline void exit_thread(void) -+{ -+} -+ -+unsigned long thread_saved_pc(struct task_struct *tsk); -+unsigned long get_wchan(struct task_struct *p); -+ -+#define KSTK_EIP(tsk) (tsk->thread.a5) -+#define KSTK_ESP(tsk) (tsk->thread.sp) -+ -+#define cpu_relax() barrier() -+ -+extern void processor_init(void); -+extern unsigned int processor_timers(void); -+extern unsigned int processor_threads(void); -+extern unsigned int processor_frequency(void); -+extern int processor_interrupts(unsigned int *int0, unsigned int *int1); -+extern int processor_ocm(void **socm, void **eocm); -+extern int processor_dram(void **sdram, void **edram); -+ -+#define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) -+#define KSTK_TOP(info) \ -+({ \ -+ unsigned long *__ptr = (unsigned long *)(info); \ -+ (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ -+}) -+ -+#define task_pt_regs(task) \ -+({ \ -+ struct pt_regs *__regs__; \ -+ __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ -+ __regs__ - 1; \ -+}) -+ -+#endif /* _ASM_UBICOM32_PROCESSOR_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ptrace.h -@@ -0,0 +1,177 @@ -+/* -+ * arch/ubicom32/include/asm/ptrace.h -+ * Ubicom32 architecture ptrace support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_PTRACE_H -+#define _ASM_UBICOM32_PTRACE_H -+ -+#ifndef __ASSEMBLY__ -+ -+/* -+ * We use hard coded constants because this is shared with user -+ * space and the values are NOT allowed to change. Only fields -+ * that are intended to be exposed get values. -+ */ -+#define PT_D0 0 -+#define PT_D1 4 -+#define PT_D2 8 -+#define PT_D3 12 -+#define PT_D4 16 -+#define PT_D5 20 -+#define PT_D6 24 -+#define PT_D7 28 -+#define PT_D8 32 -+#define PT_D9 36 -+#define PT_D10 40 -+#define PT_D11 44 -+#define PT_D12 48 -+#define PT_D13 52 -+#define PT_D14 56 -+#define PT_D15 60 -+#define PT_A0 64 -+#define PT_A1 68 -+#define PT_A2 72 -+#define PT_A3 76 -+#define PT_A4 80 -+#define PT_A5 84 -+#define PT_A6 88 -+#define PT_A7 92 -+#define PT_SP 92 -+#define PT_ACC0HI 96 -+#define PT_ACC0LO 100 -+#define PT_MAC_RC16 104 -+#define PT_ACC1HI 108 -+#define PT_ACC1LO 112 -+#define PT_SOURCE3 116 -+#define PT_INST_CNT 120 -+#define PT_CSR 124 -+#define PT_DUMMY_UNUSED 128 -+#define PT_INT_MASK0 132 -+#define PT_INT_MASK1 136 -+#define PT_TRAP_CAUSE 140 -+#define PT_PC 144 -+#define PT_ORIGINAL_D0 148 -+#define PT_FRAME_TYPE 152 -+ -+/* -+ * The following 'registers' are not registers at all but are used -+ * locate the relocated sections. -+ */ -+#define PT_TEXT_ADDR 200 -+#define PT_TEXT_END_ADDR 204 -+#define PT_DATA_ADDR 208 -+#define PT_EXEC_FDPIC_LOADMAP 212 -+#define PT_INTERP_FDPIC_LOADMAP 216 -+ -+/* -+ * This struct defines the way the registers are stored on the -+ * stack during a system call. -+ */ -+enum thread_type { -+ NORMAL_THREAD, -+ KERNEL_THREAD, -+}; -+ -+#define UBICOM32_FRAME_TYPE_SYSCALL -1 /* System call frame */ -+#define UBICOM32_FRAME_TYPE_INVALID 0 /* Invalid frame, no longer in use */ -+#define UBICOM32_FRAME_TYPE_INTERRUPT 1 /* Interrupt frame */ -+#define UBICOM32_FRAME_TYPE_TRAP 2 /* Trap frame */ -+#define UBICOM32_FRAME_TYPE_SIGTRAMP 3 /* Signal trampoline frame. */ -+#define UBICOM32_FRAME_TYPE_NEW_THREAD 4 /* New Thread. */ -+ -+struct pt_regs { -+ /* -+ * Data Registers -+ */ -+ unsigned long dn[16]; -+ -+ /* -+ * Address Registers -+ */ -+ unsigned long an[8]; -+ -+ /* -+ * Per thread misc registers. -+ */ -+ unsigned long acc0[2]; -+ unsigned long mac_rc16; -+ unsigned long acc1[2]; -+ unsigned long source3; -+ unsigned long inst_cnt; -+ unsigned long csr; -+ unsigned long dummy_unused; -+ unsigned long int_mask0; -+ unsigned long int_mask1; -+ unsigned long trap_cause; -+ unsigned long pc; -+ unsigned long original_dn_0; -+ -+ /* -+ * Frame type. Syscall frames are -1. For other types look above. -+ */ -+ unsigned long frame_type; -+ -+ /* -+ * These fields are not exposed to ptrace. -+ */ -+ unsigned long previous_pc; -+ long nesting_level; /* When the kernel in in user space this -+ * will be -1. */ -+ unsigned long thread_type; /* This indicates if this is a kernel -+ * thread. */ -+}; -+ -+/* -+ * This is the extended stack used by signal handlers and the context -+ * switcher: it's pushed after the normal "struct pt_regs". -+ */ -+struct switch_stack { -+ unsigned long dummy; -+}; -+ -+#ifdef __KERNEL__ -+ -+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ -+#define PTRACE_GETREGS 12 -+#define PTRACE_SETREGS 13 -+ -+#ifndef PS_S -+#define PS_S (0x2000) -+#define PS_M (0x1000) -+#endif -+ -+extern int __user_mode(unsigned long sp); -+ -+#define user_mode(regs) (__user_mode((regs->an[7]))) -+#define user_stack(regs) ((regs)->an[7]) -+#define instruction_pointer(regs) ((regs)->pc) -+#define profile_pc(regs) instruction_pointer(regs) -+extern void show_regs(struct pt_regs *); -+#endif /* __KERNEL__ */ -+ -+#endif /* __ASSEMBLY__ */ -+ -+#endif /* _ASM_UBICOM32_PTRACE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/range-protect-asm.h -@@ -0,0 +1,91 @@ -+/* -+ * arch/ubicom32/include/asm/range-protect-asm.h -+ * Assembly macros for enabling memory protection. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_RANGE_PROTECT_ASM_H -+#define _ASM_UBICOM32_RANGE_PROTECT_ASM_H -+ -+#if defined(__ASSEMBLY__) -+ -+#include <asm/thread-asm.h> -+ -+/* -+ * You should only use the enable/disable ranges when you have the atomic lock, -+ * if you do not there will be problems. -+ */ -+ -+/* -+ * enable_kernel_ranges -+ * Enable the kernel ranges (disabling protection) for thread, -+ * where thread == (1 << thread number) -+ */ -+.macro enable_kernel_ranges thread -+#ifdef CONFIG_PROTECT_KERNEL -+ or.4 I_RANGE0_EN, I_RANGE0_EN, \thread /* Enable Range Register */ -+ or.4 D_RANGE0_EN, D_RANGE0_EN, \thread -+ or.4 D_RANGE1_EN, D_RANGE1_EN, \thread -+#endif -+.endm -+ -+/* -+ * enable_kernel_ranges_for_current -+ * Enable the kernel ranges (disabling protection) for this thread -+ */ -+.macro enable_kernel_ranges_for_current scratch_reg -+#ifdef CONFIG_PROTECT_KERNEL -+ thread_get_self_mask \scratch_reg -+ enable_kernel_ranges \scratch_reg -+#endif -+.endm -+ -+/* -+ * disable_kernel_ranges -+ * Disables the kernel ranges (enabling protection) for thread -+ * where thread == (1 << thread number) -+ */ -+.macro disable_kernel_ranges thread -+#ifdef CONFIG_PROTECT_KERNEL -+ not.4 \thread, \thread -+ and.4 I_RANGE0_EN, I_RANGE0_EN, \thread /* Disable Range Register */ -+ and.4 D_RANGE0_EN, D_RANGE0_EN, \thread -+ and.4 D_RANGE1_EN, D_RANGE1_EN, \thread -+#endif -+.endm -+ -+/* -+ * disable_kernel_ranges_for_current -+ * Disable kernel ranges (enabling protection) for this thread -+ */ -+.macro disable_kernel_ranges_for_current scratch_reg -+#ifdef CONFIG_PROTECT_KERNEL -+ thread_get_self_mask \scratch_reg -+ disable_kernel_ranges \scratch_reg -+#endif -+.endm -+#endif -+ -+#endif /* _ASM_UBICOM32_RANGE_PROTECT_ASM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/range-protect.h -@@ -0,0 +1,62 @@ -+/* -+ * arch/ubicom32/include/asm/range-protect.h -+ * Assembly macros declared in C for enabling memory protection. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_RANGE_PROTECT_H -+#define _ASM_UBICOM32_RANGE_PROTECT_H -+ -+#if !defined(__ASSEMBLY__) -+#include <asm/thread.h> -+/* -+ * The following macros should be the identical to the ones in -+ * range-protect-asm.h -+ * -+ * You should only use the enable/disable ranges when you have the atomic lock, -+ * if you do not there will be problems. -+ */ -+ -+/* -+ * enable_kernel_ranges -+ * Enable the kernel ranges (disabling protection) for thread, -+ * where thread == (1 << thread number) -+ */ -+asm ( -+ ".macro enable_kernel_ranges thread \n\t" -+#ifdef CONFIG_PROTECT_KERNEL -+ " or.4 I_RANGE0_EN, I_RANGE0_EN, \\thread \n\t" /* Enable Range Register */ -+ " or.4 D_RANGE0_EN, D_RANGE0_EN, \\thread \n\t" -+ " or.4 D_RANGE1_EN, D_RANGE1_EN, \\thread \n\t" -+#endif -+ ".endm \n\t" -+); -+ -+#else /* __ASSEMBLY__ */ -+ -+#include <asm/range-protect-asm.h> -+ -+#endif -+#endif /* _ASM_UBICOM32_RANGE_PROTECT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/resource.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/resource.h -+ * Generic definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_RESOURCE_H -+#define _ASM_UBICOM32_RESOURCE_H -+ -+#include <asm-generic/resource.h> -+ -+#endif /* _ASM_UBICOM32_RESOURCE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ring_tio.h -@@ -0,0 +1,42 @@ -+/* -+ * arch/ubicom32/include/asm/ring_tio.h -+ * Ubicom32 architecture Ring TIO definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_RING_TIO_H -+#define _ASM_UBICOM32_RING_TIO_H -+ -+#include <asm/devtree.h> -+ -+#define RING_TIO_NODE_VERSION 2 -+ -+/* -+ * Devtree node for ring -+ */ -+struct ring_tio_node { -+ struct devtree_node dn; -+ -+ u32_t version; -+ void *regs; -+}; -+ -+extern void ring_tio_init(const char *node_name); -+ -+#endif /* _ASM_UBICOM32_RING_TIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/scatterlist.h -@@ -0,0 +1,49 @@ -+/* -+ * arch/ubicom32/include/asm/scatterlist.h -+ * Definitions of struct scatterlist for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SCATTERLIST_H -+#define _ASM_UBICOM32_SCATTERLIST_H -+ -+#include <linux/mm.h> -+#include <asm/types.h> -+ -+struct scatterlist { -+#ifdef CONFIG_DEBUG_SG -+ unsigned long sg_magic; -+#endif -+ unsigned long page_link; -+ unsigned int offset; -+ dma_addr_t dma_address; -+ unsigned int length; -+}; -+ -+#define sg_dma_address(sg) ((sg)->dma_address) -+#define sg_dma_len(sg) ((sg)->length) -+ -+#define ISA_DMA_THRESHOLD (0xffffffff) -+ -+#endif /* _ASM_UBICOM32_SCATTERLIST_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/sd_tio.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/sd_tio.h -+ * SD TIO definitions -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_SD_TIO_H -+#define _ASM_UBICOM32_SD_TIO_H -+ -+#include <asm/devtree.h> -+ -+/* -+ * Devtree node for SD -+ */ -+struct sd_tio_node { -+ struct devtree_node dn; -+ void *regs; -+}; -+ -+#endif /* _ASM_UBICOM32_SD_TIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/sections.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/sections.h -+ * Generic sections.h definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SECTIONS_H -+#define _ASM_UBICOM32_SECTIONS_H -+ -+#include <asm-generic/sections.h> -+ -+#endif /* _ASM_UBICOM32_SECTIONS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/segment.h -@@ -0,0 +1,78 @@ -+/* -+ * arch/ubicom32/include/asm/segment.h -+ * Memory segment definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SEGMENT_H -+#define _ASM_UBICOM32_SEGMENT_H -+ -+/* define constants */ -+/* Address spaces (FC0-FC2) */ -+#define USER_DATA (1) -+#ifndef __USER_DS -+#define __USER_DS (USER_DATA) -+#endif -+#define USER_PROGRAM (2) -+#define SUPER_DATA (5) -+#ifndef __KERNEL_DS -+#define __KERNEL_DS (SUPER_DATA) -+#endif -+#define SUPER_PROGRAM (6) -+#define CPU_SPACE (7) -+ -+#ifndef __ASSEMBLY__ -+ -+typedef struct { -+ unsigned long seg; -+} mm_segment_t; -+ -+#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -+#define USER_DS MAKE_MM_SEG(__USER_DS) -+#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS) -+ -+/* -+ * Get/set the SFC/DFC registers for MOVES instructions -+ */ -+ -+static inline mm_segment_t get_fs(void) -+{ -+ return USER_DS; -+} -+ -+static inline mm_segment_t get_ds(void) -+{ -+ /* return the supervisor data space code */ -+ return KERNEL_DS; -+} -+ -+static inline void set_fs(mm_segment_t val) -+{ -+} -+ -+#define segment_eq(a,b) ((a).seg == (b).seg) -+ -+#endif /* __ASSEMBLY__ */ -+ -+#endif /* _ASM_UBICOM32_SEGMENT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/semaphore.h -@@ -0,0 +1,140 @@ -+/* -+ * arch/ubicom32/include/asm/semaphore.h -+ * Interrupt-safe semaphores for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * (C) Copyright 1996 Linus Torvalds -+ * m68k version by Andreas Schwab -+ * Copyright (C) 2004 Microtronix Datacom Ltd -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SEMAPHORE_H -+#define _ASM_UBICOM32_SEMAPHORE_H -+ -+#define RW_LOCK_BIAS 0x01000000 -+ -+#ifndef __ASSEMBLY__ -+ -+#include <linux/linkage.h> -+#include <linux/wait.h> -+#include <linux/spinlock.h> -+#include <linux/rwsem.h> -+ -+#include <asm/system.h> -+#include <asm/atomic.h> -+ -+struct semaphore { -+ atomic_t count; -+ atomic_t waking; -+ wait_queue_head_t wait; -+}; -+ -+#define __SEMAPHORE_INITIALIZER(name, n) \ -+{ \ -+ .count = ATOMIC_INIT(n), \ -+ .waking = ATOMIC_INIT(0), \ -+ .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ -+} -+ -+#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ -+ struct semaphore name = __SEMAPHORE_INITIALIZER(name,count) -+ -+#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1) -+#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0) -+ -+static inline void sema_init (struct semaphore *sem, int val) -+{ -+ *sem = (struct semaphore)__SEMAPHORE_INITIALIZER(*sem, val); -+} -+ -+static inline void init_MUTEX (struct semaphore *sem) -+{ -+ sema_init(sem, 1); -+} -+ -+static inline void init_MUTEX_LOCKED (struct semaphore *sem) -+{ -+ sema_init(sem, 0); -+} -+ -+asmlinkage void __down_failed(void /* special register calling convention */); -+asmlinkage int __down_failed_interruptible(void /* params in registers */); -+asmlinkage int __down_failed_trylock(void /* params in registers */); -+asmlinkage void __up_wakeup(void /* special register calling convention */); -+ -+asmlinkage void __down(struct semaphore * sem); -+asmlinkage int __down_interruptible(struct semaphore * sem); -+asmlinkage int __down_trylock(struct semaphore * sem); -+asmlinkage void __up(struct semaphore * sem); -+ -+extern spinlock_t semaphore_wake_lock; -+ -+/* -+ * This is ugly, but we want the default case to fall through. -+ * "down_failed" is a special asm handler that calls the C -+ * routine that actually waits. -+ */ -+static inline void down(struct semaphore * sem) -+{ -+ might_sleep(); -+ -+ if (atomic_dec_return(&sem->count) < 0) -+ __down(sem); -+} -+ -+static inline int down_interruptible(struct semaphore * sem) -+{ -+ int ret = 0; -+ -+ -+ might_sleep(); -+ -+ if(atomic_dec_return(&sem->count) < 0) -+ ret = __down_interruptible(sem); -+ return ret; -+} -+ -+static inline int down_trylock(struct semaphore * sem) -+{ -+ int ret = 0; -+ -+ if (atomic_dec_return (&sem->count) < 0) -+ ret = __down_trylock(sem); -+ return ret; -+} -+ -+/* -+ * Note! This is subtle. We jump to wake people up only if -+ * the semaphore was negative (== somebody was waiting on it). -+ * The default case (no contention) will result in NO -+ * jumps for both down() and up(). -+ */ -+static inline void up(struct semaphore * sem) -+{ -+ if (atomic_inc_return(&sem->count) <= 0) -+ __up(sem); -+} -+ -+#endif /* __ASSEMBLY__ */ -+ -+#endif /* _ASM_UBICOM32_SEMAPHORE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/semaphore-helper.h -@@ -0,0 +1,109 @@ -+/* -+ * arch/ubicom32/include/asm/semaphore-helper.h -+ * Semaphore related definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SEMAPHORE_HELPER_H -+#define _ASM_UBICOM32_SEMAPHORE_HELPER_H -+ -+/* -+ * SMP- and interrupt-safe semaphores helper functions. -+ * -+ * (C) Copyright 1996 Linus Torvalds -+ * -+ * m68k version by Andreas Schwab -+ */ -+ -+ -+/* -+ * These two _must_ execute atomically wrt each other. -+ */ -+static inline void wake_one_more(struct semaphore * sem) -+{ -+ atomic_inc(&sem->waking); -+} -+ -+static inline int waking_non_zero(struct semaphore *sem) -+{ -+ int ret; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&semaphore_wake_lock, flags); -+ ret = 0; -+ if (atomic_read(&sem->waking) > 0) { -+ atomic_dec(&sem->waking); -+ ret = 1; -+ } -+ spin_unlock_irqrestore(&semaphore_wake_lock, flags); -+ return ret; -+} -+ -+/* -+ * waking_non_zero_interruptible: -+ * 1 got the lock -+ * 0 go to sleep -+ * -EINTR interrupted -+ */ -+static inline int waking_non_zero_interruptible(struct semaphore *sem, -+ struct task_struct *tsk) -+{ -+ int ret; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&semaphore_wake_lock, flags); -+ ret = 0; -+ if (atomic_read(&sem->waking) > 0) { -+ atomic_dec(&sem->waking); -+ ret = 1; -+ } else if (signal_pending(tsk)) { -+ atomic_inc(&sem->count); -+ ret = -EINTR; -+ } -+ spin_unlock_irqrestore(&semaphore_wake_lock, flags); -+ return ret; -+} -+ -+/* -+ * waking_non_zero_trylock: -+ * 1 failed to lock -+ * 0 got the lock -+ */ -+static inline int waking_non_zero_trylock(struct semaphore *sem) -+{ -+ int ret; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&semaphore_wake_lock, flags); -+ ret = 1; -+ if (atomic_read(&sem->waking) > 0) { -+ atomic_dec(&sem->waking); -+ ret = 0; -+ } else -+ atomic_inc(&sem->count); -+ spin_unlock_irqrestore(&semaphore_wake_lock, flags); -+ return ret; -+} -+ -+#endif /* _ASM_UBICOM32_SEMAPHORE_HELPER_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/sembuf.h -@@ -0,0 +1,52 @@ -+/* -+ * arch/ubicom32/include/asm/sembuf.h -+ * The semid64_ds structure for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SEMBUF_H -+#define _ASM_UBICOM32_SEMBUF_H -+ -+/* -+ * The semid64_ds structure for ubicom32 architecture. -+ * Note extra padding because this structure is passed back and forth -+ * between kernel and user space. -+ * -+ * Pad space is left for: -+ * - 64-bit time_t to solve y2038 problem -+ * - 2 miscellaneous 32-bit values -+ */ -+ -+struct semid64_ds { -+ struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ -+ __kernel_time_t sem_otime; /* last semop time */ -+ unsigned long __unused1; -+ __kernel_time_t sem_ctime; /* last change time */ -+ unsigned long __unused2; -+ unsigned long sem_nsems; /* no. of semaphores in array */ -+ unsigned long __unused3; -+ unsigned long __unused4; -+}; -+ -+#endif /* _ASM_UBICOM32_SEMBUF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/setup.h -@@ -0,0 +1,35 @@ -+/* -+ * arch/ubicom32/include/asm/setup.h -+ * Kernel command line length definition. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_SETUP_H -+#define _ASM_UBICOM32_SETUP_H -+ -+#define COMMAND_LINE_SIZE 512 -+ -+#endif /* _ASM_UBICOM32_SETUP_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/shmbuf.h -@@ -0,0 +1,69 @@ -+/* -+ * arch/ubicom32/include/asm/shmbuf.h -+ * The shmid64_ds structure for the Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SHMBUF_H -+#define _ASM_UBICOM32_SHMBUF_H -+ -+/* -+ * The shmid64_ds structure for m68k architecture. -+ * Note extra padding because this structure is passed back and forth -+ * between kernel and user space. -+ * -+ * Pad space is left for: -+ * - 64-bit time_t to solve y2038 problem -+ * - 2 miscellaneous 32-bit values -+ */ -+ -+struct shmid64_ds { -+ struct ipc64_perm shm_perm; /* operation perms */ -+ size_t shm_segsz; /* size of segment (bytes) */ -+ __kernel_time_t shm_atime; /* last attach time */ -+ unsigned long __unused1; -+ __kernel_time_t shm_dtime; /* last detach time */ -+ unsigned long __unused2; -+ __kernel_time_t shm_ctime; /* last change time */ -+ unsigned long __unused3; -+ __kernel_pid_t shm_cpid; /* pid of creator */ -+ __kernel_pid_t shm_lpid; /* pid of last operator */ -+ unsigned long shm_nattch; /* no. of current attaches */ -+ unsigned long __unused4; -+ unsigned long __unused5; -+}; -+ -+struct shminfo64 { -+ unsigned long shmmax; -+ unsigned long shmmin; -+ unsigned long shmmni; -+ unsigned long shmseg; -+ unsigned long shmall; -+ unsigned long __unused1; -+ unsigned long __unused2; -+ unsigned long __unused3; -+ unsigned long __unused4; -+}; -+ -+#endif /* _ASM_UBICOM32_SHMBUF_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/shmparam.h -@@ -0,0 +1,35 @@ -+/* -+ * arch/ubicom32/include/asm/shmparam.h -+ * Shared memory definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2004 Microtronix Datacom Ltd -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * Alpha, ix86, M68K, Sparc, ...et al -+ */ -+#ifndef _ASM_UBICOM32_SHMPARAM_H -+#define _ASM_UBICOM32_SHMPARAM_H -+ -+#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ -+ -+#endif /* _ASM_UBICOM32_SHMPARAM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/sigcontext.h -@@ -0,0 +1,37 @@ -+/* -+ * arch/ubicom32/include/asm/sigcontext.h -+ * Definition of sigcontext struct for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SIGCONTEXT_H -+#define _ASM_UBICOM32_SIGCONTEXT_H -+ -+#include <asm/ptrace.h> -+ -+struct sigcontext { -+ struct pt_regs sc_regs; -+}; -+ -+#endif /* _ASM_UBICOM32_SIGCONTEXT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/siginfo.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/siginfo.h -+ * Generic siginfo.h definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SIGINFO_H -+#define _ASM_UBICOM32_SIGINFO_H -+ -+#include <asm-generic/siginfo.h> -+ -+#endif /* _ASM_UBICOM32_SIGINFO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/signal.h -@@ -0,0 +1,180 @@ -+/* -+ * arch/ubicom32/include/asm/signal.h -+ * Signal related definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SIGNAL_H -+#define _ASM_UBICOM32_SIGNAL_H -+ -+#include <linux/types.h> -+ -+/* Avoid too many header ordering problems. */ -+struct siginfo; -+ -+#ifdef __KERNEL__ -+/* Most things should be clean enough to redefine this at will, if care -+ is taken to make libc match. */ -+ -+#define _NSIG 64 -+#define _NSIG_BPW 32 -+#define _NSIG_WORDS (_NSIG / _NSIG_BPW) -+ -+typedef unsigned long old_sigset_t; /* at least 32 bits */ -+ -+typedef struct { -+ unsigned long sig[_NSIG_WORDS]; -+} sigset_t; -+ -+#endif /* __KERNEL__ */ -+ -+#define SIGHUP 1 -+#define SIGINT 2 -+#define SIGQUIT 3 -+#define SIGILL 4 -+#define SIGTRAP 5 -+#define SIGABRT 6 -+#define SIGIOT 6 -+#define SIGBUS 7 -+#define SIGFPE 8 -+#define SIGKILL 9 -+#define SIGUSR1 10 -+#define SIGSEGV 11 -+#define SIGUSR2 12 -+#define SIGPIPE 13 -+#define SIGALRM 14 -+#define SIGTERM 15 -+#define SIGSTKFLT 16 -+#define SIGCHLD 17 -+#define SIGCONT 18 -+#define SIGSTOP 19 -+#define SIGTSTP 20 -+#define SIGTTIN 21 -+#define SIGTTOU 22 -+#define SIGURG 23 -+#define SIGXCPU 24 -+#define SIGXFSZ 25 -+#define SIGVTALRM 26 -+#define SIGPROF 27 -+#define SIGWINCH 28 -+#define SIGIO 29 -+#define SIGPOLL SIGIO -+/* -+#define SIGLOST 29 -+*/ -+#define SIGPWR 30 -+#define SIGSYS 31 -+#define SIGUNUSED 31 -+ -+/* These should not be considered constants from userland. */ -+#define SIGRTMIN 32 -+#define SIGRTMAX _NSIG -+ -+/* -+ * SA_FLAGS values: -+ * -+ * SA_ONSTACK indicates that a registered stack_t will be used. -+ * SA_RESTART flag to get restarting signals (which were the default long ago) -+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. -+ * SA_RESETHAND clears the handler when the signal is delivered. -+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. -+ * SA_NODEFER prevents the current signal from being masked in the handler. -+ * -+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single -+ * Unix names RESETHAND and NODEFER respectively. -+ */ -+#define SA_NOCLDSTOP 0x00000001 -+#define SA_NOCLDWAIT 0x00000002 -+#define SA_SIGINFO 0x00000004 -+#define SA_ONSTACK 0x08000000 -+#define SA_RESTART 0x10000000 -+#define SA_NODEFER 0x40000000 -+#define SA_RESETHAND 0x80000000 -+ -+#define SA_NOMASK SA_NODEFER -+#define SA_ONESHOT SA_RESETHAND -+ -+/* -+ * sigaltstack controls -+ */ -+#define SS_ONSTACK 1 -+#define SS_DISABLE 2 -+ -+#define MINSIGSTKSZ 2048 -+#define SIGSTKSZ 8192 -+ -+#include <asm-generic/signal.h> -+ -+#ifdef __KERNEL__ -+struct old_sigaction { -+ __sighandler_t sa_handler; -+ old_sigset_t sa_mask; -+ unsigned long sa_flags; -+ void (*sa_restorer)(void); -+}; -+ -+struct sigaction { -+ __sighandler_t sa_handler; -+ unsigned long sa_flags; -+ void (*sa_restorer)(void); -+ sigset_t sa_mask; /* mask last for extensibility */ -+}; -+ -+struct k_sigaction { -+ struct sigaction sa; -+}; -+#else -+/* Here we must cater to libcs that poke about in kernel headers. */ -+ -+struct sigaction { -+ union { -+ __sighandler_t _sa_handler; -+ void (*_sa_sigaction)(int, struct siginfo *, void *); -+ } _u; -+ sigset_t sa_mask; -+ unsigned long sa_flags; -+ void (*sa_restorer)(void); -+}; -+ -+#define sa_handler _u._sa_handler -+#define sa_sigaction _u._sa_sigaction -+ -+#endif /* __KERNEL__ */ -+ -+typedef struct sigaltstack { -+ void *ss_sp; -+ int ss_flags; -+ size_t ss_size; -+} stack_t; -+ -+#ifdef __KERNEL__ -+ -+#include <asm/sigcontext.h> -+#undef __HAVE_ARCH_SIG_BITOPS -+ -+#define ptrace_signal_deliver(regs, cookie) do { } while (0) -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_SIGNAL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/smp.h -@@ -0,0 +1,83 @@ -+/* -+ * arch/ubicom32/include/asm/smp.h -+ * SMP definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SMP_H -+#define _ASM_UBICOM32_SMP_H -+ -+#ifndef ASSEMBLY -+#include <linux/bitops.h> -+#include <linux/threads.h> -+#include <linux/cpumask.h> -+#include <asm/ip5000.h> -+ -+typedef unsigned long address_t; -+extern cpumask_t cpu_online_map; -+extern unsigned int smp_ipi_irq; -+ -+/* -+ * This magic constant controls our willingness to transfer -+ * a process across CPUs. -+ * -+ * Such a transfer incurs cache and tlb -+ * misses. The current value is inherited from i386. Still needs -+ * to be tuned for parisc. -+ */ -+#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */ -+#define NO_PROC_ID 0xFF /* No processor magic marker */ -+#define ANY_PROC_ID 0xFF /* Any processor magic marker */ -+ -+#ifdef CONFIG_SMP -+#define raw_smp_processor_id() (current_thread_info()->cpu) -+#endif /* CONFIG_SMP */ -+ -+static inline int __cpu_disable (void) -+{ -+ return 0; -+} -+ -+static inline void __cpu_die (unsigned int cpu) -+{ -+ while(1) { -+ }; -+} -+ -+extern int __cpu_up(unsigned int cpu); -+extern void smp_send_timer_all(void); -+extern void smp_timer_broadcast(cpumask_t mask); -+extern void smp_set_affinity(unsigned int irq, cpumask_t dest); -+extern void arch_send_call_function_single_ipi(int cpu); -+extern void arch_send_call_function_ipi(cpumask_t mask); -+ -+/* -+ * TODO: Once these are fully tested, we should turn them into -+ * inline macros for performance. -+ */ -+extern unsigned long smp_get_affinity(unsigned int irq, int *all); -+extern void smp_reset_ipi(unsigned long mask); -+ -+#endif /* !ASSEMBLY */ -+#endif /* _ASM_UBICOM32_SMP_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/socket.h -@@ -0,0 +1,84 @@ -+/* -+ * arch/ubicom32/include/asm/socket.h -+ * Socket options definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SOCKET_H -+#define _ASM_UBICOM32_SOCKET_H -+ -+#include <asm/sockios.h> -+ -+/* For setsockopt(2) */ -+#define SOL_SOCKET 1 -+ -+#define SO_DEBUG 1 -+#define SO_REUSEADDR 2 -+#define SO_TYPE 3 -+#define SO_ERROR 4 -+#define SO_DONTROUTE 5 -+#define SO_BROADCAST 6 -+#define SO_SNDBUF 7 -+#define SO_RCVBUF 8 -+#define SO_SNDBUFFORCE 32 -+#define SO_RCVBUFFORCE 33 -+#define SO_KEEPALIVE 9 -+#define SO_OOBINLINE 10 -+#define SO_NO_CHECK 11 -+#define SO_PRIORITY 12 -+#define SO_LINGER 13 -+#define SO_BSDCOMPAT 14 -+/* To add :#define SO_REUSEPORT 15 */ -+#define SO_PASSCRED 16 -+#define SO_PEERCRED 17 -+#define SO_RCVLOWAT 18 -+#define SO_SNDLOWAT 19 -+#define SO_RCVTIMEO 20 -+#define SO_SNDTIMEO 21 -+ -+/* Security levels - as per NRL IPv6 - don't actually do anything */ -+#define SO_SECURITY_AUTHENTICATION 22 -+#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -+#define SO_SECURITY_ENCRYPTION_NETWORK 24 -+ -+#define SO_BINDTODEVICE 25 -+ -+/* Socket filtering */ -+#define SO_ATTACH_FILTER 26 -+#define SO_DETACH_FILTER 27 -+ -+#define SO_PEERNAME 28 -+#define SO_TIMESTAMP 29 -+#define SCM_TIMESTAMP SO_TIMESTAMP -+ -+#define SO_ACCEPTCONN 30 -+ -+#define SO_PEERSEC 31 -+#define SO_PASSSEC 34 -+#define SO_TIMESTAMPNS 35 -+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS -+ -+#define SO_MARK 36 -+ -+#endif /* _ASM_UBICOM32_SOCKET_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/sockios.h -@@ -0,0 +1,40 @@ -+/* -+ * arch/ubicom32/include/asm/sockios.h -+ * Socket-level ioctl definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SOCKIOS_H -+#define _ASM_UBICOM32_SOCKIOS_H -+ -+/* Socket-level I/O control calls. */ -+#define FIOSETOWN 0x8901 -+#define SIOCSPGRP 0x8902 -+#define FIOGETOWN 0x8903 -+#define SIOCGPGRP 0x8904 -+#define SIOCATMARK 0x8905 -+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ -+ -+#endif /* _ASM_UBICOM32_SOCKIOS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/spinlock.h -@@ -0,0 +1,293 @@ -+/* -+ * arch/ubicom32/include/asm/spinlock.h -+ * Spinlock related definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SPINLOCK_H -+#define _ASM_UBICOM32_SPINLOCK_H -+ -+#include <asm/system.h> -+#include <asm/processor.h> -+#include <asm/spinlock_types.h> -+ -+/* -+ * __raw_spin_lock() -+ * Lock the lock. -+ */ -+static inline void __raw_spin_lock(raw_spinlock_t *x) -+{ -+ asm volatile ( -+ "1: bset %0, %0, #0 \n\t" -+ " jmpne.f 1b \n\t" -+ : "+U4" (x->lock) -+ : -+ : "memory", "cc" -+ ); -+} -+ -+/* -+ * __raw_spin_unlock() -+ * Unlock the lock. -+ */ -+static inline void __raw_spin_unlock(raw_spinlock_t *x) -+{ -+ asm volatile ( -+ " bclr %0, %0, #0 \n\t" -+ : "+U4" (x->lock) -+ : -+ : "memory", "cc" -+ ); -+} -+ -+/* -+ * __raw_spin_is_locked() -+ * Test if the lock is locked. -+ */ -+static inline int __raw_spin_is_locked(raw_spinlock_t *x) -+{ -+ return x->lock; -+} -+ -+/* -+ * __raw_spin_unlock_wait() -+ * Wait for the lock to be unlocked. -+ * -+ * Note: the caller has not guarantee that the lock will not -+ * be acquired before they get to it. -+ */ -+static inline void __raw_spin_unlock_wait(raw_spinlock_t *x) -+{ -+ do { -+ cpu_relax(); -+ } while (__raw_spin_is_locked(x)); -+} -+ -+/* -+ * __raw_spin_trylock() -+ * Try the lock, return 0 on failure, 1 on success. -+ */ -+static inline int __raw_spin_trylock(raw_spinlock_t *x) -+{ -+ int ret = 0; -+ -+ asm volatile ( -+ " bset %1, %1, #0 \n\t" -+ " jmpne.f 1f \n\t" -+ " move.4 %0, #1 \n\t" -+ "1: \n\t" -+ : "+r" (ret), "+U4" (x->lock) -+ : -+ : "memory", "cc" -+ ); -+ -+ return ret; -+} -+ -+/* -+ * __raw_spin_lock_flags() -+ * Spin waiting for the lock (enabling IRQ(s)) -+ */ -+static inline void __raw_spin_lock_flags(raw_spinlock_t *x, unsigned long flags) -+{ -+ mb(); -+ while (!__raw_spin_trylock(x)) { -+ /* -+ * If the flags from the IRQ are set, interrupts are disabled and we -+ * need to re-enable them. -+ */ -+ if (!flags) { -+ cpu_relax(); -+ } else { -+ raw_local_irq_enable(); -+ cpu_relax(); -+ raw_local_irq_disable(); -+ } -+ } -+ mb(); -+} -+ -+/* -+ * Read-write spinlocks, allowing multiple readers but only one writer. -+ * Linux rwlocks are unfair to writers; they can be starved for an indefinite -+ * time by readers. With care, they can also be taken in interrupt context. -+ * -+ * In Ubicom32 architecture implementation, we have a spinlock and a counter. -+ * Readers use the lock to serialise their access to the counter (which -+ * records how many readers currently hold the lock). -+ * Writers hold the spinlock, preventing any readers or other writers from -+ * grabbing the rwlock. -+ */ -+ -+/* -+ * __raw_read_lock() -+ * Increment the counter in the rwlock. -+ * -+ * Note that we have to ensure interrupts are disabled in case we're -+ * interrupted by some other code that wants to grab the same read lock -+ */ -+static inline void __raw_read_lock(raw_rwlock_t *rw) -+{ -+ unsigned long flags; -+ raw_local_irq_save(flags); -+ __raw_spin_lock_flags(&rw->lock, flags); -+ rw->counter++; -+ __raw_spin_unlock(&rw->lock); -+ raw_local_irq_restore(flags); -+} -+ -+/* -+ * __raw_read_unlock() -+ * Decrement the counter. -+ * -+ * Note that we have to ensure interrupts are disabled in case we're -+ * interrupted by some other code that wants to grab the same read lock -+ */ -+static inline void __raw_read_unlock(raw_rwlock_t *rw) -+{ -+ unsigned long flags; -+ raw_local_irq_save(flags); -+ __raw_spin_lock_flags(&rw->lock, flags); -+ rw->counter--; -+ __raw_spin_unlock(&rw->lock); -+ raw_local_irq_restore(flags); -+} -+ -+/* -+ * __raw_read_trylock() -+ * Increment the counter if we can. -+ * -+ * Note that we have to ensure interrupts are disabled in case we're -+ * interrupted by some other code that wants to grab the same read lock -+ */ -+static inline int __raw_read_trylock(raw_rwlock_t *rw) -+{ -+ unsigned long flags; -+ retry: -+ raw_local_irq_save(flags); -+ if (__raw_spin_trylock(&rw->lock)) { -+ rw->counter++; -+ __raw_spin_unlock(&rw->lock); -+ raw_local_irq_restore(flags); -+ return 1; -+ } -+ -+ raw_local_irq_restore(flags); -+ -+ /* -+ * If write-locked, we fail to acquire the lock -+ */ -+ if (rw->counter < 0) { -+ return 0; -+ } -+ -+ /* -+ * Wait until we have a realistic chance at the lock -+ */ -+ while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0) { -+ cpu_relax(); -+ } -+ -+ goto retry; -+} -+ -+/* -+ * __raw_write_lock() -+ * -+ * Note that we have to ensure interrupts are disabled in case we're -+ * interrupted by some other code that wants to read_trylock() this lock -+ */ -+static inline void __raw_write_lock(raw_rwlock_t *rw) -+{ -+ unsigned long flags; -+retry: -+ raw_local_irq_save(flags); -+ __raw_spin_lock_flags(&rw->lock, flags); -+ -+ if (rw->counter != 0) { -+ __raw_spin_unlock(&rw->lock); -+ raw_local_irq_restore(flags); -+ -+ while (rw->counter != 0) -+ cpu_relax(); -+ -+ goto retry; -+ } -+ -+ rw->counter = -1; /* mark as write-locked */ -+ mb(); -+ raw_local_irq_restore(flags); -+} -+ -+static inline void __raw_write_unlock(raw_rwlock_t *rw) -+{ -+ rw->counter = 0; -+ __raw_spin_unlock(&rw->lock); -+} -+ -+/* Note that we have to ensure interrupts are disabled in case we're -+ * interrupted by some other code that wants to read_trylock() this lock */ -+static inline int __raw_write_trylock(raw_rwlock_t *rw) -+{ -+ unsigned long flags; -+ int result = 0; -+ -+ raw_local_irq_save(flags); -+ if (__raw_spin_trylock(&rw->lock)) { -+ if (rw->counter == 0) { -+ rw->counter = -1; -+ result = 1; -+ } else { -+ /* Read-locked. Oh well. */ -+ __raw_spin_unlock(&rw->lock); -+ } -+ } -+ raw_local_irq_restore(flags); -+ -+ return result; -+} -+ -+/* -+ * read_can_lock - would read_trylock() succeed? -+ * @lock: the rwlock in question. -+ */ -+static inline int __raw_read_can_lock(raw_rwlock_t *rw) -+{ -+ return rw->counter >= 0; -+} -+ -+/* -+ * write_can_lock - would write_trylock() succeed? -+ * @lock: the rwlock in question. -+ */ -+static inline int __raw_write_can_lock(raw_rwlock_t *rw) -+{ -+ return !rw->counter; -+} -+ -+#define _raw_spin_relax(lock) cpu_relax() -+#define _raw_read_relax(lock) cpu_relax() -+#define _raw_write_relax(lock) cpu_relax() -+ -+#endif /* _ASM_UBICOM32_SPINLOCK_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/spinlock_types.h -@@ -0,0 +1,43 @@ -+/* -+ * arch/ubicom32/include/asm/spinlock_types.h -+ * Spinlock related structure definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SPINLOCK_TYPES_H -+#define _ASM_UBICOM32_SPINLOCK_TYPES_H -+ -+typedef struct { -+ volatile unsigned int lock; -+} raw_spinlock_t; -+ -+typedef struct { -+ raw_spinlock_t lock; -+ volatile int counter; -+} raw_rwlock_t; -+ -+#define __RAW_SPIN_LOCK_UNLOCKED { 0 } -+#define __RAW_RW_LOCK_UNLOCKED { __RAW_SPIN_LOCK_UNLOCKED, 0 } -+ -+#endif /* _ASM_UBICOM32_SPINLOCK_TYPES_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/stacktrace.h -@@ -0,0 +1,72 @@ -+/* -+ * arch/ubicom32/include/asm/stacktrace.h -+ * Stacktrace functions for the Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_STACKTRACE_H -+#define _ASM_UBICOM32_STACKTRACE_H -+ -+#define between(a, b, c) (( \ -+ ((unsigned long) a) >= ((unsigned long) b)) && \ -+ (((unsigned long)a) <= ((unsigned long)c))) -+ -+/* -+ * These symbols are filled in by the linker. -+ */ -+extern unsigned long _stext; -+extern unsigned long _etext; -+ -+/* OCM text goes from __ocm_text_run_begin to __data_begin */ -+extern unsigned long __ocm_text_run_begin; -+extern unsigned long __data_begin; -+ -+/* Account for OCM case - see stacktrace.c maybe combine(also trap.c) */ -+/* -+ * ubicom32_is_kernel() -+ * -+ * Check to see if the given address belongs to the kernel. -+ * NOMMU does not permit any other means. -+ */ -+static inline int ubicom32_is_kernel(unsigned long addr) -+{ -+ int is_kernel = between(addr, &_stext, &_etext) || \ -+ between(addr, &__ocm_text_run_begin, &__data_begin); -+ -+#ifdef CONFIG_MODULES -+ if (!is_kernel) -+ is_kernel = is_module_address(addr); -+#endif -+ return is_kernel; -+} -+ -+extern unsigned long stacktrace_iterate( -+ unsigned long **trace, -+ unsigned long stext, unsigned long etext, -+ unsigned long ocm_stext, unsigned long ocm_etext, -+ unsigned long sstack, unsigned long estack); -+#ifdef CONFIG_STACKTRACE -+void stacktrace_save_entries(struct task_struct *tsk, struct stack_trace *trace, unsigned long sp); -+#endif -+#endif /* _ASM_UBICOM32_STACKTRACE_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/statfs.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/statfs.h -+ * Generic statfs.h definitions -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_STATFS_H -+#define _ASM_UBICOM32_STATFS_H -+ -+#include <asm-generic/statfs.h> -+ -+#endif /* _ASM_UBICOM32_STATFS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/stat.h -@@ -0,0 +1,104 @@ -+/* -+ * arch/ubicom32/include/asm/stat.h -+ * File status definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_STAT_H -+#define _ASM_UBICOM32_STAT_H -+ -+struct __old_kernel_stat { -+ unsigned short st_dev; -+ unsigned short st_ino; -+ unsigned short st_mode; -+ unsigned short st_nlink; -+ unsigned short st_uid; -+ unsigned short st_gid; -+ unsigned short st_rdev; -+ unsigned long st_size; -+ unsigned long st_atime; -+ unsigned long st_mtime; -+ unsigned long st_ctime; -+}; -+ -+struct stat { -+ unsigned short st_dev; -+ unsigned short __pad1; -+ unsigned long st_ino; -+ unsigned short st_mode; -+ unsigned short st_nlink; -+ unsigned short st_uid; -+ unsigned short st_gid; -+ unsigned short st_rdev; -+ unsigned short __pad2; -+ unsigned long st_size; -+ unsigned long st_blksize; -+ unsigned long st_blocks; -+ unsigned long st_atime; -+ unsigned long __unused1; -+ unsigned long st_mtime; -+ unsigned long __unused2; -+ unsigned long st_ctime; -+ unsigned long __unused3; -+ unsigned long __unused4; -+ unsigned long __unused5; -+}; -+ -+/* This matches struct stat64 in glibc2.1, hence the absolutely -+ * insane amounts of padding around dev_t's. -+ */ -+struct stat64 { -+ unsigned long long st_dev; -+ unsigned char __pad1[2]; -+ -+#define STAT64_HAS_BROKEN_ST_INO 1 -+ unsigned long __st_ino; -+ -+ unsigned int st_mode; -+ unsigned int st_nlink; -+ -+ unsigned long st_uid; -+ unsigned long st_gid; -+ -+ unsigned long long st_rdev; -+ unsigned char __pad3[2]; -+ -+ long long st_size; -+ unsigned long st_blksize; -+ -+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */ -+ -+ unsigned long st_atime; -+ unsigned long st_atime_nsec; -+ -+ unsigned long st_mtime; -+ unsigned long st_mtime_nsec; -+ -+ unsigned long st_ctime; -+ unsigned long st_ctime_nsec; -+ -+ unsigned long long st_ino; -+}; -+ -+#endif /* _ASM_UBICOM32_STAT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/string.h -@@ -0,0 +1,37 @@ -+/* -+ * arch/ubicom32/include/asm/string.h -+ * String operation definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_STRING_H -+#define _ASM_UBICOM32_STRING_H -+ -+#define __HAVE_ARCH_MEMSET -+extern void *memset(void *b, int c, size_t len); -+ -+#define __HAVE_ARCH_MEMCPY -+extern void *memcpy(void *to, const void *from, size_t len); -+ -+#endif /* _ASM_UBICOM32_STRING_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/switch-bcm539x.h -@@ -0,0 +1,57 @@ -+/* -+ * arch/ubicom32/include/asm/switch-bcm539x.h -+ * Broadcom bcm539x platform data definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SWITCH_BCM539X_H -+#define _ASM_UBICOM32_SWITCH_BCM539X_H -+ -+#define SWITCH_BCM539X_FLAG_HW_RESET 0x01 -+#define SWITCH_BCM539X_FLAG_SW_RESET 0x02 -+ -+struct switch_bcm539x_platform_data { -+ /* -+ * See flags above -+ */ -+ u32_t flags; -+ -+ /* -+ * GPIO to use for nReset -+ */ -+ int pin_reset; -+ -+ -+ /* -+ * GPIO to use for chip select -+ */ -+ int pin_cs; -+ -+ /* -+ * Name of this switch -+ */ -+ const char *name; -+}; -+ -+#endif /* _ASM_UBICOM32_SWITCH_BCM539X_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/system.h -@@ -0,0 +1,101 @@ -+/* -+ * arch/ubicom32/include/asm/system.h -+ * Low level switching definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_SYSTEM_H -+#define _ASM_UBICOM32_SYSTEM_H -+ -+#include <linux/irqflags.h> -+#include <linux/linkage.h> -+#include <asm/segment.h> -+#include <asm/entry.h> -+#include <asm/ldsr.h> -+#include <asm/irq.h> -+#include <asm/percpu.h> -+#include <asm/ubicom32-common.h> -+#include <asm/processor.h> -+ -+/* -+ * switch_to(n) should switch tasks to task ptr, first checking that -+ * ptr isn't the current task, in which case it does nothing. -+ */ -+asmlinkage void resume(void); -+extern void *__switch_to(struct task_struct *prev, -+ struct thread_struct *prev_switch, -+ struct thread_struct *next_switch); -+ -+/* -+ * We will need a per linux thread sw_ksp for the switch_to macro to -+ * track the kernel stack pointer for the current thread on that linux thread. -+ */ -+#define switch_to(prev,next,last) \ -+({ \ -+ void *_last; \ -+ _last = (void *) \ -+ __switch_to(prev, &prev->thread, &next->thread); \ -+ (last) = _last; \ -+}) -+ -+/* -+ * Force strict CPU ordering. -+ * Not really required on ubicom32... -+ */ -+#define nop() asm volatile ("nop"::) -+#define mb() asm volatile ("" : : :"memory") -+#define rmb() asm volatile ("" : : :"memory") -+#define wmb() asm volatile ("" : : :"memory") -+#define set_mb(var, value) ({ (var) = (value); wmb(); }) -+ -+#ifdef CONFIG_SMP -+#define smp_mb() mb() -+#define smp_rmb() rmb() -+#define smp_wmb() wmb() -+#define smp_read_barrier_depends() read_barrier_depends() -+#else -+#define smp_mb() mb() -+#define smp_rmb() rmb() -+#define smp_wmb() wmb() -+#define smp_read_barrier_depends() do { } while(0) -+#endif -+ -+#define read_barrier_depends() ((void)0) -+ -+/* -+ * The following defines change how the scheduler calls the switch_to() -+ * macro. -+ * -+ * 1) The first causes the runqueue to be unlocked on entry to -+ * switch_to(). Since our ctx code does not play with the runqueue -+ * we do not need it unlocked. -+ * -+ * 2) The later turns interrupts on during a ctxsw to reduce the latency of -+ * interrupts during ctx. At this point in the port, we believe that this -+ * latency is not a problem since we have very little code to perform a ctxsw. -+ */ -+// #define __ARCH_WANT_UNLOCKED_CTXSW -+// #define __ARCH_WANT_INTERRUPTS_ON_CTXSW -+ -+#endif /* _ASM_UBICOM32_SYSTEM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/termbits.h -@@ -0,0 +1,227 @@ -+/* -+ * arch/ubicom32/include/asm/termbits.h -+ * Terminal/serial port definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TERMBITS_H -+#define _ASM_UBICOM32_TERMBITS_H -+ -+#include <linux/posix_types.h> -+ -+typedef unsigned char cc_t; -+typedef unsigned int speed_t; -+typedef unsigned int tcflag_t; -+ -+#define NCCS 19 -+struct termios { -+ tcflag_t c_iflag; /* input mode flags */ -+ tcflag_t c_oflag; /* output mode flags */ -+ tcflag_t c_cflag; /* control mode flags */ -+ tcflag_t c_lflag; /* local mode flags */ -+ cc_t c_line; /* line discipline */ -+ cc_t c_cc[NCCS]; /* control characters */ -+}; -+ -+struct termios2 { -+ tcflag_t c_iflag; /* input mode flags */ -+ tcflag_t c_oflag; /* output mode flags */ -+ tcflag_t c_cflag; /* control mode flags */ -+ tcflag_t c_lflag; /* local mode flags */ -+ cc_t c_line; /* line discipline */ -+ cc_t c_cc[NCCS]; /* control characters */ -+ speed_t c_ispeed; /* input speed */ -+ speed_t c_ospeed; /* output speed */ -+}; -+ -+struct ktermios { -+ tcflag_t c_iflag; /* input mode flags */ -+ tcflag_t c_oflag; /* output mode flags */ -+ tcflag_t c_cflag; /* control mode flags */ -+ tcflag_t c_lflag; /* local mode flags */ -+ cc_t c_line; /* line discipline */ -+ cc_t c_cc[NCCS]; /* control characters */ -+ speed_t c_ispeed; /* input speed */ -+ speed_t c_ospeed; /* output speed */ -+}; -+ -+/* c_cc characters */ -+#define VINTR 0 -+#define VQUIT 1 -+#define VERASE 2 -+#define VKILL 3 -+#define VEOF 4 -+#define VTIME 5 -+#define VMIN 6 -+#define VSWTC 7 -+#define VSTART 8 -+#define VSTOP 9 -+#define VSUSP 10 -+#define VEOL 11 -+#define VREPRINT 12 -+#define VDISCARD 13 -+#define VWERASE 14 -+#define VLNEXT 15 -+#define VEOL2 16 -+ -+ -+/* c_iflag bits */ -+#define IGNBRK 0000001 -+#define BRKINT 0000002 -+#define IGNPAR 0000004 -+#define PARMRK 0000010 -+#define INPCK 0000020 -+#define ISTRIP 0000040 -+#define INLCR 0000100 -+#define IGNCR 0000200 -+#define ICRNL 0000400 -+#define IUCLC 0001000 -+#define IXON 0002000 -+#define IXANY 0004000 -+#define IXOFF 0010000 -+#define IMAXBEL 0020000 -+#define IUTF8 0040000 -+ -+/* c_oflag bits */ -+#define OPOST 0000001 -+#define OLCUC 0000002 -+#define ONLCR 0000004 -+#define OCRNL 0000010 -+#define ONOCR 0000020 -+#define ONLRET 0000040 -+#define OFILL 0000100 -+#define OFDEL 0000200 -+#define NLDLY 0000400 -+#define NL0 0000000 -+#define NL1 0000400 -+#define CRDLY 0003000 -+#define CR0 0000000 -+#define CR1 0001000 -+#define CR2 0002000 -+#define CR3 0003000 -+#define TABDLY 0014000 -+#define TAB0 0000000 -+#define TAB1 0004000 -+#define TAB2 0010000 -+#define TAB3 0014000 -+#define XTABS 0014000 -+#define BSDLY 0020000 -+#define BS0 0000000 -+#define BS1 0020000 -+#define VTDLY 0040000 -+#define VT0 0000000 -+#define VT1 0040000 -+#define FFDLY 0100000 -+#define FF0 0000000 -+#define FF1 0100000 -+ -+/* c_cflag bit meaning */ -+#define CBAUD 0010017 -+#define B0 0000000 /* hang up */ -+#define B50 0000001 -+#define B75 0000002 -+#define B110 0000003 -+#define B134 0000004 -+#define B150 0000005 -+#define B200 0000006 -+#define B300 0000007 -+#define B600 0000010 -+#define B1200 0000011 -+#define B1800 0000012 -+#define B2400 0000013 -+#define B4800 0000014 -+#define B9600 0000015 -+#define B19200 0000016 -+#define B38400 0000017 -+#define EXTA B19200 -+#define EXTB B38400 -+#define CSIZE 0000060 -+#define CS5 0000000 -+#define CS6 0000020 -+#define CS7 0000040 -+#define CS8 0000060 -+#define CSTOPB 0000100 -+#define CREAD 0000200 -+#define PARENB 0000400 -+#define PARODD 0001000 -+#define HUPCL 0002000 -+#define CLOCAL 0004000 -+#define CBAUDEX 0010000 -+#define BOTHER 0010000 -+#define B57600 0010001 -+#define B115200 0010002 -+#define B230400 0010003 -+#define B460800 0010004 -+#define B500000 0010005 -+#define B576000 0010006 -+#define B921600 0010007 -+#define B1000000 0010010 -+#define B1152000 0010011 -+#define B1500000 0010012 -+#define B2000000 0010013 -+#define B2500000 0010014 -+#define B3000000 0010015 -+#define B3500000 0010016 -+#define B4000000 0010017 -+#define CIBAUD 002003600000 /* input baud rate */ -+#define CMSPAR 010000000000 /* mark or space (stick) parity */ -+#define CRTSCTS 020000000000 /* flow control */ -+ -+#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ -+ -+/* c_lflag bits */ -+#define ISIG 0000001 -+#define ICANON 0000002 -+#define XCASE 0000004 -+#define ECHO 0000010 -+#define ECHOE 0000020 -+#define ECHOK 0000040 -+#define ECHONL 0000100 -+#define NOFLSH 0000200 -+#define TOSTOP 0000400 -+#define ECHOCTL 0001000 -+#define ECHOPRT 0002000 -+#define ECHOKE 0004000 -+#define FLUSHO 0010000 -+#define PENDIN 0040000 -+#define IEXTEN 0100000 -+ -+ -+/* tcflow() and TCXONC use these */ -+#define TCOOFF 0 -+#define TCOON 1 -+#define TCIOFF 2 -+#define TCION 3 -+ -+/* tcflush() and TCFLSH use these */ -+#define TCIFLUSH 0 -+#define TCOFLUSH 1 -+#define TCIOFLUSH 2 -+ -+/* tcsetattr uses these */ -+#define TCSANOW 0 -+#define TCSADRAIN 1 -+#define TCSAFLUSH 2 -+ -+#endif /* _ASM_UBICOM32_TERMBITS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/termios.h -@@ -0,0 +1,119 @@ -+/* -+ * arch/ubicom32/include/asm/termios.h -+ * Ubicom32 termio definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TERMIOS_H -+#define _ASM_UBICOM32_TERMIOS_H -+ -+#include <asm/termbits.h> -+#include <asm/ioctls.h> -+ -+struct winsize { -+ unsigned short ws_row; -+ unsigned short ws_col; -+ unsigned short ws_xpixel; -+ unsigned short ws_ypixel; -+}; -+ -+#define NCC 8 -+struct termio { -+ unsigned short c_iflag; /* input mode flags */ -+ unsigned short c_oflag; /* output mode flags */ -+ unsigned short c_cflag; /* control mode flags */ -+ unsigned short c_lflag; /* local mode flags */ -+ unsigned char c_line; /* line discipline */ -+ unsigned char c_cc[NCC]; /* control characters */ -+}; -+ -+#ifdef __KERNEL__ -+/* intr=^C quit=^| erase=del kill=^U -+ eof=^D vtime=\0 vmin=\1 sxtc=\0 -+ start=^Q stop=^S susp=^Z eol=\0 -+ reprint=^R discard=^U werase=^W lnext=^V -+ eol2=\0 -+*/ -+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" -+#endif -+ -+/* modem lines */ -+#define TIOCM_LE 0x001 -+#define TIOCM_DTR 0x002 -+#define TIOCM_RTS 0x004 -+#define TIOCM_ST 0x008 -+#define TIOCM_SR 0x010 -+#define TIOCM_CTS 0x020 -+#define TIOCM_CAR 0x040 -+#define TIOCM_RNG 0x080 -+#define TIOCM_DSR 0x100 -+#define TIOCM_CD TIOCM_CAR -+#define TIOCM_RI TIOCM_RNG -+#define TIOCM_OUT1 0x2000 -+#define TIOCM_OUT2 0x4000 -+#define TIOCM_LOOP 0x8000 -+ -+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ -+ -+#ifdef __KERNEL__ -+ -+/* -+ * Translate a "termio" structure into a "termios". Ugh. -+ */ -+#define user_termio_to_kernel_termios(termios, termio) \ -+({ \ -+ unsigned short tmp; \ -+ get_user(tmp, &(termio)->c_iflag); \ -+ (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ -+ get_user(tmp, &(termio)->c_oflag); \ -+ (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ -+ get_user(tmp, &(termio)->c_cflag); \ -+ (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ -+ get_user(tmp, &(termio)->c_lflag); \ -+ (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ -+ get_user((termios)->c_line, &(termio)->c_line); \ -+ copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ -+}) -+ -+/* -+ * Translate a "termios" structure into a "termio". Ugh. -+ */ -+#define kernel_termios_to_user_termio(termio, termios) \ -+({ \ -+ put_user((termios)->c_iflag, &(termio)->c_iflag); \ -+ put_user((termios)->c_oflag, &(termio)->c_oflag); \ -+ put_user((termios)->c_cflag, &(termio)->c_cflag); \ -+ put_user((termios)->c_lflag, &(termio)->c_lflag); \ -+ put_user((termios)->c_line, &(termio)->c_line); \ -+ copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ -+}) -+ -+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2)) -+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2)) -+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) -+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_TERMIOS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/thread-asm.h -@@ -0,0 +1,49 @@ -+/* -+ * arch/ubicom32/include/asm/thread-asm.h -+ * Ubicom32 architecture specific thread definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_THREAD_ASM_H -+#define _ASM_UBICOM32_THREAD_ASM_H -+ -+/* -+ * thread_get_self -+ * Read and shift the current thread into reg -+ */ -+.macro thread_get_self reg -+ lsr.4 \reg, ROSR, #2 -+ and.4 \reg, #31, \reg /* Mask to get thread number into register */ -+.endm -+ -+/* -+ * thread_get_self_mask -+ * Read and shift the current thread mask into reg -+ */ -+.macro thread_get_self_mask reg -+ lsr.4 \reg, ROSR, #2 -+ lsl.4 \reg, #1, \reg /* Thread bit */ -+.endm -+ -+#endif /* _ASM_UBICOM32_THREAD_ASM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/thread.h -@@ -0,0 +1,313 @@ -+/* -+ * arch/ubicom32/include/asm/thread.h -+ * Ubicom32 architecture specific thread definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_THREAD_H -+#define _ASM_UBICOM32_THREAD_H -+ -+#if !defined(__ASSEMBLY__) -+ -+#include <asm/ptrace.h> -+#include <asm/ubicom32-common.h> -+ -+typedef int thread_t; -+typedef unsigned char thread_type_t; -+typedef void (*thread_exec_fn_t)(void *arg); -+ -+#define THREAD_NULL 0x40 -+#define THREAD_TYPE_HRT (1 << 0) -+#define THREAD_TYPE_SPECIAL 0 -+#define THREAD_TYPE_NORMAL 0 -+#define THREAD_TYPE_BACKGROUND (1 << 1) -+ -+/* -+ * This is the upper bound on the maximum hardware threads that one will find -+ * on a Ubicom processor. It is used to size per hardware thread data structures. -+ */ -+#define THREAD_ARCHITECTURAL_MAX 16 -+ -+/* -+ * TODO: Rename this at some point to be thread_ -+ */ -+extern unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX]; -+ -+ -+/* -+ * thread_get_self() -+ */ -+static inline thread_t thread_get_self(void) -+{ -+ thread_t result; -+ asm ( -+ "lsr.4 %0, ROSR, #2 \n\t" -+ : "=d" (result) -+ : -+ : "cc" -+ ); -+ return result & 31; -+} -+ -+/* -+ * thread_suspend() -+ */ -+static inline void thread_suspend(void) -+{ -+ asm volatile ( -+ "suspend\n\t" -+ : -+ : -+ ); -+} -+ -+/* -+ * thread_resume() -+ */ -+static inline void thread_resume(thread_t thread) -+{ -+ asm volatile ( -+ "move.4 MT_ACTIVE_SET, %0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ : -+ : "d" (1 << thread) -+ ); -+} -+ -+ -+ -+/* -+ * thread_enable_mask() -+ * Enable all threads in the mask. -+ * -+ * All writes to MT_EN must be protected by the MT_EN_LOCK bit -+ */ -+static inline void thread_enable_mask(unsigned int mask) -+{ -+ /* -+ * must flush the pipeline twice. -+ * first pipe_flush is to ensure write to MT_EN is completed -+ * second one is to ensure any new instructions from -+ * the targeted thread (the one being disabled), that -+ * are issued while the write to MT_EN is being executed, -+ * are completed. -+ */ -+ UBICOM32_LOCK(MT_EN_LOCK_BIT); -+ asm volatile ( -+ "or.4 MT_EN, MT_EN, %0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ : -+ : "d" (mask) -+ : "cc" -+ ); -+ UBICOM32_UNLOCK(MT_EN_LOCK_BIT); -+} -+ -+/* -+ * thread_enable() -+ */ -+static inline void thread_enable(thread_t thread) -+{ -+ thread_enable_mask(1 << thread); -+} -+ -+/* -+ * thread_disable_mask() -+ * Disable all threads in the mask. -+ * -+ * All writes to MT_EN must be protected by the MT_EN_LOCK bit -+ */ -+static inline void thread_disable_mask(unsigned int mask) -+{ -+ /* -+ * must flush the pipeline twice. -+ * first pipe_flush is to ensure write to MT_EN is completed -+ * second one is to ensure any new instructions from -+ * the targeted thread (the one being disabled), that -+ * are issued while the write to MT_EN is being executed, -+ * are completed. -+ */ -+ UBICOM32_LOCK(MT_EN_LOCK_BIT); -+ asm volatile ( -+ "and.4 MT_EN, MT_EN, %0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ : -+ : "d" (~mask) -+ : "cc" -+ ); -+ UBICOM32_UNLOCK(MT_EN_LOCK_BIT); -+} -+ -+/* -+ * thread_disable() -+ */ -+static inline void thread_disable(thread_t thread) -+{ -+ thread_disable_mask(1 << thread); -+} -+ -+/* -+ * thread_disable_others() -+ * Disable all other threads -+ */ -+static inline void thread_disable_others(void) -+{ -+ thread_t self = thread_get_self(); -+ thread_disable_mask(~(1 << self)); -+} -+ -+/* -+ * thread_is_trapped() -+ * Is the specified tid trapped? -+ */ -+static inline int thread_is_trapped(thread_t tid) -+{ -+ int thread_mask = (1 << tid); -+ int trap_thread; -+ -+ asm ( -+ "move.4 %0, MT_TRAP \n\t" -+ : "=d" (trap_thread) -+ : -+ ); -+ return (trap_thread & thread_mask); -+} -+ -+/* -+ * thread_is_enabled() -+ * Is the specified tid enabled? -+ */ -+static inline int thread_is_enabled(thread_t tid) -+{ -+ int thread_mask = (1 << tid); -+ int enabled_threads; -+ -+ asm ( -+ "move.4 %0, MT_EN \n\t" -+ : "=d" (enabled_threads) -+ : -+ ); -+ return (enabled_threads & thread_mask); -+} -+ -+/* -+ * thread_get_instruction_count() -+ */ -+static inline unsigned int thread_get_instruction_count(void) -+{ -+ unsigned int result; -+ asm ( -+ "move.4 %0, INST_CNT \n\t" -+ : "=r" (result) -+ ); -+ return result; -+} -+ -+/* -+ * thread_get_pc() -+ * pc could point to a speculative and cancelled instruction unless thread is disabled -+ */ -+static inline void *thread_get_pc(thread_t thread) -+{ -+ void *result; -+ asm ( -+ "move.4 csr, %1 \n\t" -+ "setcsr_flush 0 \n\t" -+ "move.4 %0, pc \n\t" -+ "move.4 csr, #0 \n\t" -+ "setcsr_flush 0 \n\t" -+ : "=r" (result) -+ : "r" ((thread << 9) | (1 << 8)) -+ ); -+ return result; -+} -+ -+/* -+ * thread_get_trap_cause() -+ * This should be called only when the thread is not running -+ */ -+static inline unsigned int thread_get_trap_cause(thread_t thread) -+{ -+ unsigned int result; -+ asm ( -+ "move.4 csr, %1 \n\t" -+ "setcsr_flush 0 \n\t" -+ "move.4 %0, trap_cause \n\t" -+ "move.4 csr, #0 \n\t" -+ "setcsr_flush 0 \n\t" -+ : "=r" (result) -+ : "r" ((thread << 9) | (1 << 8)) -+ ); -+ return result; -+} -+ -+/* -+ * THREAD_STALL macro. -+ */ -+#define THREAD_STALL \ -+ asm volatile ( \ -+ "move.4 mt_dbg_active_clr, #-1 \n\t" \ -+ "pipe_flush 0 \n\t" \ -+ : \ -+ : \ -+ ) -+ -+extern unsigned int thread_get_mainline(void); -+extern void thread_set_mainline(thread_t tid); -+extern thread_t thread_alloc(void); -+extern thread_t thread_start(thread_t thread, thread_exec_fn_t exec, void *arg, unsigned int *sp_high, thread_type_t type); -+ -+/* -+ * asm macros -+ */ -+asm ( -+/* -+ * thread_get_self -+ * Read and shift the current thread into reg -+ */ -+".macro thread_get_self reg \n\t" -+" lsr.4 \\reg, ROSR, #2 \n\t" -+" and.4 \\reg, #31, \\reg \n\t"/* Mask to get thread number into -+ * register */ -+".endm \n\t" -+ -+/* -+ * thread_get_self_mask -+ * Read and shift the current thread mask into reg -+ */ -+".macro thread_get_self_mask reg \n\t" -+" lsr.4 \\reg, ROSR, #2 \n\t" -+" lsl.4 \\reg, #1, \\reg \n\t" /* Thread bit */ -+".endm \n\t" -+ ); -+ -+#else /* __ASSEMBLY__ */ -+ -+#include <asm/thread-asm.h> -+ -+#endif /* __ASSEMBLY__ */ -+#endif /* _ASM_UBICOM32_THREAD_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/thread_info.h -@@ -0,0 +1,134 @@ -+/* -+ * arch/ubicom32/include/asm/thread_info.h -+ * Ubicom32 architecture low-level thread information. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Adapted from the i386 and PPC versions by Greg Ungerer (gerg@snapgear.com) -+ * Copyright (C) 2002 David Howells (dhowells@redhat.com) -+ * - Incorporating suggestions made by Linus Torvalds and Dave Miller -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_THREAD_INFO_H -+#define _ASM_UBICOM32_THREAD_INFO_H -+ -+#include <asm/page.h> -+ -+/* -+ * Size of kernel stack for each process. This must be a power of 2... -+ */ -+#ifdef CONFIG_4KSTACKS -+#define THREAD_SIZE_ORDER (0) -+#else -+#define THREAD_SIZE_ORDER (1) -+#endif -+ -+/* -+ * for asm files, THREAD_SIZE is now generated by asm-offsets.c -+ */ -+#define THREAD_SIZE (PAGE_SIZE<<THREAD_SIZE_ORDER) -+ -+#ifdef __KERNEL__ -+ -+#ifndef __ASSEMBLY__ -+ -+/* -+ * low level task data. -+ */ -+struct thread_info { -+ struct task_struct *task; /* main task structure */ -+ struct exec_domain *exec_domain; /* execution domain */ -+ unsigned long flags; /* low level flags */ -+ int cpu; /* cpu we're on */ -+ int preempt_count; /* 0 => preemptable, <0 => BUG */ -+ int interrupt_nesting; /* Interrupt nesting level. */ -+ struct restart_block restart_block; -+}; -+ -+/* -+ * macros/functions for gaining access to the thread information structure -+ */ -+#define INIT_THREAD_INFO(tsk) \ -+{ \ -+ .task = &tsk, \ -+ .exec_domain = &default_exec_domain, \ -+ .flags = 0, \ -+ .cpu = 0, \ -+ .interrupt_nesting = 0, \ -+ .restart_block = { \ -+ .fn = do_no_restart_syscall, \ -+ }, \ -+} -+ -+#define init_thread_info (init_thread_union.thread_info) -+#define init_stack (init_thread_union.stack) -+ -+ -+/* how to get the thread information struct from C */ -+static inline struct thread_info *current_thread_info(void) -+{ -+ struct thread_info *ti; -+ -+ asm ( -+ "and.4 %0, sp, %1\n\t" -+ : "=&r" (ti) -+ : "d" (~(THREAD_SIZE-1)) -+ : "cc" -+ ); -+ -+ return ti; -+} -+ -+#define STACK_WARN (THREAD_SIZE / 8) -+ -+#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR 1 -+ -+/* thread information allocation */ -+#define alloc_thread_info(tsk) ((struct thread_info *) \ -+ __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) -+#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_SIZE_ORDER) -+#endif /* __ASSEMBLY__ */ -+ -+#define PREEMPT_ACTIVE 0x4000000 -+ -+/* -+ * thread information flag bit numbers -+ */ -+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -+#define TIF_SIGPENDING 1 /* signal pending */ -+#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -+#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling -+ TIF_NEED_RESCHED */ -+#define TIF_MEMDIE 4 -+ -+/* as above, but as bit values */ -+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -+#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -+ -+#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_THREAD_INFO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/timex.h -@@ -0,0 +1,56 @@ -+/* -+ * arch/ubicom32/include/asm/timex.h -+ * Ubicom32 architecture timex specifications. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TIMEX_H -+#define _ASM_UBICOM32_TIMEX_H -+ -+#define CLOCK_TICK_RATE 266000000 -+ -+// #define ARCH_HAS_READ_CURRENT_TIMER -+ -+typedef unsigned long cycles_t; -+ -+static inline cycles_t get_cycles(void) -+{ -+ return 0; -+} -+ -+extern int timer_alloc(void); -+extern void timer_set(int timervector, unsigned int cycles); -+extern int timer_reset(int timervector, unsigned int cycles); -+extern void timer_tick_init(void); -+extern void timer_device_init(void); -+ -+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -+extern void local_timer_interrupt(void); -+#endif -+ -+#if defined(CONFIG_LOCAL_TIMERS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -+extern int local_timer_setup(unsigned int cpu); -+#endif -+ -+#endif /* _ASM_UBICOM32_TIMEX_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/tlbflush.h -@@ -0,0 +1,79 @@ -+/* -+ * arch/ubicom32/include/asm/tlbflush.h -+ * TLB operations for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org> -+ * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TLB_FLUSH_H -+#define _ASM_UBICOM32_TLB_FLUSH_H -+ -+#include <asm/setup.h> -+ -+/* -+ * flush all user-space atc entries. -+ */ -+static inline void __flush_tlb(void) -+{ -+ BUG(); -+} -+ -+static inline void __flush_tlb_one(unsigned long addr) -+{ -+ BUG(); -+} -+ -+#define flush_tlb() __flush_tlb() -+ -+/* -+ * flush all atc entries (both kernel and user-space entries). -+ */ -+static inline void flush_tlb_all(void) -+{ -+ BUG(); -+} -+ -+static inline void flush_tlb_mm(struct mm_struct *mm) -+{ -+ BUG(); -+} -+ -+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) -+{ -+ BUG(); -+} -+ -+static inline void flush_tlb_range(struct mm_struct *mm, -+ unsigned long start, unsigned long end) -+{ -+ BUG(); -+} -+ -+static inline void flush_tlb_kernel_page(unsigned long addr) -+{ -+ BUG(); -+} -+ -+#endif /* _ASM_UBICOM32_TLB_FLUSH_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/tlb.h -@@ -0,0 +1,47 @@ -+/* -+ * arch/ubicom32/include/asm/tlb.h -+ * Ubicom32 architecture TLB operations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TLB_H -+#define _ASM_UBICOM32_TLB_H -+ -+/* -+ * ubicom32 doesn't need any special per-pte or -+ * per-vma handling.. -+ */ -+#define tlb_start_vma(tlb, vma) do { } while (0) -+#define tlb_end_vma(tlb, vma) do { } while (0) -+#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) -+ -+/* -+ * .. because we flush the whole mm when it -+ * fills up. -+ */ -+#define tlb_flush(tlb) -+ -+#include <asm-generic/tlb.h> -+ -+#endif /* _ASM_UBICOM32_TLB_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/topology.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/topology.h -+ * Generic topology.h definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TOPOLOGY_H -+#define _ASM_UBICOM32_TOPOLOGY_H -+ -+#include <asm-generic/topology.h> -+ -+#endif /* _ASM_UBICOM32_TOPOLOGY_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/traps.h -@@ -0,0 +1,55 @@ -+/* -+ * arch/ubicom32/include/asm/traps.h -+ * Trap related definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_TRAPS_H -+#define _ASM_UBICOM32_TRAPS_H -+ -+/* -+ * Trap causes passed from ultra to Host OS -+ */ -+#define TRAP_CAUSE_TOTAL 13 -+#define TRAP_CAUSE_DST_RANGE_ERR 12 -+#define TRAP_CAUSE_SRC1_RANGE_ERR 11 -+#define TRAP_CAUSE_I_RANGE_ERR 10 -+#define TRAP_CAUSE_DCAPT 9 -+#define TRAP_CAUSE_DST_SERROR 8 -+#define TRAP_CAUSE_SRC1_SERROR 7 -+#define TRAP_CAUSE_DST_MISALIGNED 6 -+#define TRAP_CAUSE_SRC1_MISALIGNED 5 -+#define TRAP_CAUSE_DST_DECODE_ERR 4 -+#define TRAP_CAUSE_SRC1_DECODE_ERR 3 -+#define TRAP_CAUSE_ILLEGAL_INST 2 -+#define TRAP_CAUSE_I_SERROR 1 -+#define TRAP_CAUSE_I_DECODE_ERR 0 -+ -+extern void trap_handler(int irq, struct pt_regs *regs); -+extern void trap_init_interrupt(void); -+extern void unaligned_emulate(unsigned int thread); -+extern int unaligned_only(unsigned int cause); -+ -+#endif /* _ASM_UBICOM32_TRAPS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/types.h -@@ -0,0 +1,75 @@ -+/* -+ * arch/ubicom32/include/asm/types.h -+ * Date type definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_TYPES_H -+#define _ASM_UBICOM32_TYPES_H -+ -+/* -+ * This file is never included by application software unless -+ * explicitly requested (e.g., via linux/types.h) in which case the -+ * application is Linux specific so (user-) name space pollution is -+ * not a major issue. However, for interoperability, libraries still -+ * need to be careful to avoid a name clashes. -+ */ -+ -+#include <asm-generic/int-ll64.h> -+ -+#ifndef __ASSEMBLY__ -+ -+typedef unsigned short umode_t; -+ -+#endif /* __ASSEMBLY__ */ -+ -+/* -+ * These aren't exported outside the kernel to avoid name space clashes -+ */ -+#ifdef __KERNEL__ -+ -+#define BITS_PER_LONG 32 -+ -+#ifndef __ASSEMBLY__ -+ -+/* DMA addresses are always 32-bits wide */ -+ -+typedef u32 dma_addr_t; -+typedef u32 dma64_addr_t; -+ -+/* -+ * XXX These are "Ubicom style" typedefs. They should be removed in all files used by linux. -+ */ -+typedef u32 u32_t; -+typedef s32 s32_t; -+typedef u16 u16_t; -+typedef s16 s16_t; -+typedef u8 u8_t; -+typedef s8 s8_t; -+ -+#endif /* __ASSEMBLY__ */ -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_TYPES_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/uaccess.h -@@ -0,0 +1,347 @@ -+/* -+ * arch/ubicom32/include/asm/uaccess.h -+ * User space memory access functions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * arch/alpha -+ */ -+#ifndef _ASM_UBICOM32_UACCESS_H -+#define _ASM_UBICOM32_UACCESS_H -+ -+/* -+ * User space memory access functions -+ */ -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/string.h> -+ -+#include <asm/segment.h> -+ -+#define VERIFY_READ 0 -+#define VERIFY_WRITE 1 -+ -+/* -+ * The exception table consists of pairs of addresses: the first is the -+ * address of an instruction that is allowed to fault, and the second is -+ * the address at which the program should continue. No registers are -+ * modified, so it is entirely up to the continuation code to figure out -+ * what to do. -+ * -+ * All the routines below use bits of fixup code that are out of line -+ * with the main instruction path. This means when everything is well, -+ * we don't even have to jump over them. Further, they do not intrude -+ * on our cache or tlb entries. -+ */ -+struct exception_table_entry -+{ -+ unsigned long insn, fixup; -+}; -+ -+/* -+ * Ubicom32 does not currently support the exception table handling. -+ */ -+extern unsigned long search_exception_table(unsigned long); -+ -+ -+#if defined(CONFIG_ACCESS_OK_CHECKS_ENABLED) -+extern int __access_ok(unsigned long addr, unsigned long size); -+#else -+static inline int __access_ok(unsigned long addr, unsigned long size) -+{ -+ return 1; -+} -+#endif -+#define access_ok(type, addr, size) \ -+ likely(__access_ok((unsigned long)(addr), (size))) -+ -+/* -+ * The following functions do not exist. They keep callers -+ * of put_user and get_user from passing unsupported argument -+ * types. They result in a link time error. -+ */ -+extern int __put_user_bad(void); -+extern int __get_user_bad(void); -+ -+/* -+ * __put_user_no_check() -+ * Put the requested data into the user space verifying the address -+ * -+ * Careful to not -+ * (a) re-use the arguments for side effects (sizeof/typeof is ok) -+ * (b) require any knowledge of processes at this stage -+ */ -+#define __put_user_no_check(x, ptr, size) \ -+({ \ -+ int __pu_err = 0; \ -+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ -+ switch (size) { \ -+ case 1: \ -+ case 2: \ -+ case 4: \ -+ case 8: \ -+ *__pu_addr = (__typeof__(*(ptr)))x; \ -+ break; \ -+ default: \ -+ __pu_err = __put_user_bad(); \ -+ break; \ -+ } \ -+ __pu_err; \ -+}) -+ -+/* -+ * __put_user_check() -+ * Put the requested data into the user space verifying the address -+ * -+ * Careful to not -+ * (a) re-use the arguments for side effects (sizeof/typeof is ok) -+ * (b) require any knowledge of processes at this stage -+ * -+ * If requested, access_ok() will verify that ptr is a valid user -+ * pointer. -+ */ -+#define __put_user_check(x, ptr, size) \ -+({ \ -+ int __pu_err = -EFAULT; \ -+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ -+ if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \ -+ __pu_err = 0; \ -+ switch (size) { \ -+ case 1: \ -+ case 2: \ -+ case 4: \ -+ case 8: \ -+ *__pu_addr = (__typeof__(*(ptr)))x; \ -+ break; \ -+ default: \ -+ __pu_err = __put_user_bad(); \ -+ break; \ -+ } \ -+ } \ -+ __pu_err; \ -+}) -+ -+/* -+ * __get_user_no_check() -+ * Read the value at ptr into x. -+ * -+ * If requested, access_ok() will verify that ptr is a valid user -+ * pointer. If the caller passes a modifying argument for ptr (e.g. x++) -+ * this macro will not work. -+ */ -+#define __get_user_no_check(x, ptr, size) \ -+({ \ -+ int __gu_err = 0; \ -+ __typeof__((x)) __gu_val = 0; \ -+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ -+ switch (size) { \ -+ case 1: \ -+ case 2: \ -+ case 4: \ -+ case 8: \ -+ __gu_val = (__typeof__((x)))*(__gu_addr); \ -+ break; \ -+ default: \ -+ __gu_err = __get_user_bad(); \ -+ (x) = 0; \ -+ break; \ -+ } \ -+ (x) = __gu_val; \ -+ __gu_err; \ -+}) -+ -+/* -+ * __get_user_check() -+ * Read the value at ptr into x. -+ * -+ * If requested, access_ok() will verify that ptr is a valid user -+ * pointer. -+ */ -+#define __get_user_check(x, ptr, size) \ -+({ \ -+ int __gu_err = -EFAULT; \ -+ __typeof__(x) __gu_val = 0; \ -+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ -+ if (access_ok(VERIFY_READ, __gu_addr, size)) { \ -+ __gu_err = 0; \ -+ switch (size) { \ -+ case 1: \ -+ case 2: \ -+ case 4: \ -+ case 8: \ -+ __gu_val = (__typeof__((x)))*(__gu_addr); \ -+ break; \ -+ default: \ -+ __gu_err = __get_user_bad(); \ -+ (x) = 0; \ -+ break; \ -+ } \ -+ } \ -+ (x) = __gu_val; \ -+ __gu_err; \ -+}) -+ -+/* -+ * The "xxx" versions are allowed to perform some amount of address -+ * space checking. See access_ok(). -+ */ -+#define put_user(x,ptr) \ -+ __put_user_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr))) -+#define get_user(x,ptr) \ -+ __get_user_check((x), (ptr), sizeof(*(ptr))) -+ -+/* -+ * The "__xxx" versions do not do address space checking, useful when -+ * doing multiple accesses to the same area (the programmer has to do the -+ * checks by hand with "access_ok()") -+ */ -+#define __put_user(x,ptr) \ -+ __put_user_no_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr))) -+#define __get_user(x,ptr) \ -+ __get_user_no_check((x), (ptr), sizeof(*(ptr))) -+ -+/* -+ * __copy_tofrom_user_no_check() -+ * Copy the data either to or from user space. -+ * -+ * Return the number of bytes NOT copied. -+ */ -+static inline unsigned long -+__copy_tofrom_user_no_check(void *to, const void *from, unsigned long n) -+{ -+ memcpy(to, from, n); -+ return 0; -+} -+ -+/* -+ * copy_to_user() -+ * Copy the kernel data to user space. -+ * -+ * Return the number of bytes that were copied. -+ */ -+static inline unsigned long -+copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if (!access_ok(VERIFY_WRITE, to, n)) { -+ return n; -+ } -+ return __copy_tofrom_user_no_check((__force void *)to, from, n); -+} -+ -+/* -+ * copy_from_user() -+ * Copy the user data to kernel space. -+ * -+ * Return the number of bytes that were copied. On error, we zero -+ * out the destination. -+ */ -+static inline unsigned long -+copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if (!access_ok(VERIFY_READ, from, n)) { -+ return n; -+ } -+ return __copy_tofrom_user_no_check(to, (__force void *)from, n); -+} -+ -+#define __copy_to_user(to, from, n) \ -+ __copy_tofrom_user_no_check((__force void *)to, from, n) -+#define __copy_from_user(to, from, n) \ -+ __copy_tofrom_user_no_check(to, (__force void *)from, n) -+#define __copy_to_user_inatomic(to, from, n) \ -+ __copy_tofrom_user_no_check((__force void *)to, from, n) -+#define __copy_from_user_inatomic(to, from, n) \ -+ __copy_tofrom_user_no_check(to, (__force void *)from, n) -+ -+#define copy_to_user_ret(to, from, n, retval) \ -+ ({ if (copy_to_user(to, from, n)) return retval; }) -+ -+#define copy_from_user_ret(to, from, n, retval) \ -+ ({ if (copy_from_user(to, from, n)) return retval; }) -+ -+/* -+ * strncpy_from_user() -+ * Copy a null terminated string from userspace. -+ * -+ * dst - Destination in kernel space. The buffer must be at least count. -+ * src - Address of string in user space. -+ * count - Maximum number of bytes to copy (including the trailing NULL). -+ * -+ * Returns the length of the string (not including the trailing NULL. If -+ * count is smaller than the length of the string, we copy count bytes -+ * and return count. -+ * -+ */ -+static inline long strncpy_from_user(char *dst, const __user char *src, long count) -+{ -+ char *tmp; -+ if (!access_ok(VERIFY_READ, src, 1)) { -+ return -EFAULT; -+ } -+ -+ strncpy(dst, src, count); -+ for (tmp = dst; *tmp && count > 0; tmp++, count--) { -+ ; -+ } -+ return(tmp - dst); -+} -+ -+/* -+ * strnlen_user() -+ * Return the size of a string (including the ending 0) -+ * -+ * Return -EFAULT on exception, a value greater than <n> if too long -+ */ -+static inline long strnlen_user(const __user char *src, long n) -+{ -+ if (!access_ok(VERIFY_READ, src, 1)) { -+ return -EFAULT; -+ } -+ return(strlen(src) + 1); -+} -+ -+#define strlen_user(str) strnlen_user(str, 32767) -+ -+/* -+ * __clear_user() -+ * Zero Userspace -+ */ -+static inline unsigned long __clear_user(__user void *to, unsigned long n) -+{ -+ memset(to, 0, n); -+ return 0; -+} -+ -+/* -+ * clear_user() -+ * Zero user space (check for valid addresses) -+ */ -+static inline unsigned long clear_user(__user void *to, unsigned long n) -+{ -+ if (!access_ok(VERIFY_WRITE, to, n)) { -+ return -EFAULT; -+ } -+ return __clear_user(to, n); -+} -+ -+#endif /* _ASM_UBICOM32_UACCESS_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubi32-cs4384.h -@@ -0,0 +1,53 @@ -+/* -+ * arch/ubicom32/include/asm/ubi32-cs4384.h -+ * Ubicom32 architecture CS4384 driver platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_UBI32_CS4384_H -+#define _ASM_UBICOM32_UBI32_CS4384_H -+ -+enum ubi32_cs4384_mclk_source { -+ UBI32_CS4384_MCLK_PWM_0, -+ UBI32_CS4384_MCLK_PWM_1, -+ UBI32_CS4384_MCLK_PWM_2, -+ UBI32_CS4384_MCLK_CLKDIV_1, -+ UBI32_CS4384_MCLK_OTHER, -+}; -+ -+struct ubi32_cs4384_mclk_entry { -+ /* -+ * Rate, in Hz, of this entry -+ */ -+ int rate; -+ -+ /* -+ * The divider to program to get the rate -+ */ -+ int div; -+}; -+ -+struct ubi32_cs4384_platform_data { -+ enum ubi32_cs4384_mclk_source mclk_src; -+ -+ int n_mclk; -+ struct ubi32_cs4384_mclk_entry *mclk_entries; -+}; -+#endif /* _ASM_UBICOM32_UBI32_CS4384_H */ -+ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubi32-pcm.h -@@ -0,0 +1,53 @@ -+/* -+ * arch/ubicom32/include/asm/ubi32-pcm.h -+ * Ubicom32 architecture PCM driver platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_UBI32_PCM_H -+#define _ASM_UBICOM32_UBI32_PCM_H -+ -+/* -+ * This function is called when the sample rate has changed -+ */ -+typedef int (*ubi32_pcm_set_rate_fn_t)(void *appdata, int rate); -+ -+struct ubi32pcm_platform_data { -+ /* -+ * Name of the audiotio node -+ */ -+ const char *node_name; -+ -+ /* -+ * Application specific data provided when calling functions -+ */ -+ void *appdata; -+ -+ /* -+ * Functions called when various things happen -+ */ -+ ubi32_pcm_set_rate_fn_t set_rate; -+ -+ /* -+ * Pointer to optional upper layer data (i.e. DAC config, etc) -+ */ -+ void *priv_data; -+}; -+#endif /* _ASM_UBICOM32_UBI32_PCM_H */ -+ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32bl.h -@@ -0,0 +1,84 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32bl.h -+ * Ubicom32 architecture backlight driver platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_BL_H -+#define _ASM_UBICOM32_UBICOM32_BL_H -+ -+/* -+ * Different backlight control mechanisms -+ */ -+enum ubicom32bl_pwm_types { -+ /* -+ * PWM controlled backlight -+ */ -+ UBICOM32BL_TYPE_PWM, -+ -+ /* -+ * HRT based PWM backlight -+ */ -+ UBICOM32BL_TYPE_PWM_HRT, -+ -+ /* -+ * No dimming, just on or off -+ */ -+ UBICOM32BL_TYPE_BINARY, -+}; -+ -+struct ubicom32bl_platform_data { -+ /* -+ * Default intensity of the backlight 0-255 -+ */ -+ u8_t default_intensity; -+ -+ /* -+ * TRUE if the backlight sense is active low. (inverted) -+ * FALSE if the backlight sense is active high. -+ */ -+ bool invert; -+ -+ /* -+ * Type of the backlight -+ */ -+ enum ubicom32bl_pwm_types type; -+ -+ /* -+ * GPIO of the backlight if UBICOM32BL_TYPE_PWM_HRT, UBICOM32BL_TYPE_BINARY -+ */ -+ unsigned gpio; -+ -+ /* -+ * PWM channel and parameters of the backlight if UBICOM32BL_TYPE_PWM -+ * pre_scaler: sets the rate at which the PWM timer is clocked. (clk_core / 2^pre_scaler) -+ * period: sets the period of the timer in timer cycles -+ * The duty cycle will be directly proportional to the brightness setting. -+ */ -+ u32_t pwm_channel; -+ u8_t pwm_prescale; -+ u16_t pwm_period; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_BL_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32-common-asm.h -@@ -0,0 +1,49 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32-common-asm.h -+ * Ubicom32 atomic lock operations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_UBICOM32_COMMON_ASM_H -+#define _ASM_UBICOM32_UBICOM32_COMMON_ASM_H -+ -+/* -+ * atomic_lock_acquire macro -+ * Equivalent to __atomic_lock_acquire() -+ */ -+.macro atomic_lock_acquire -+ bset scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT -+ jmpne.f .-4 -+.endm -+ -+/* -+ * atomic_lock_release macro -+ * Equivalent to __atomic_lock_release() -+ */ -+.macro atomic_lock_release -+ bclr scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT -+.endm -+ -+#endif /* _ASM_UBICOM32_UBICOM32_COMMON_ASM_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32-common.h -@@ -0,0 +1,124 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32-common.h -+ * Ubicom32 atomic lock operations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_UBICOM32_COMMON_H -+#define _ASM_UBICOM32_UBICOM32_COMMON_H -+ -+#define S(arg) #arg -+#define D(arg) S(arg) -+/* -+ * scratchpad1 is owned by the LDSR. -+ * -+ * The upper bits provide 16 global spinlocks. Acquiring one of these -+ * global spinlocks synchornizes across multiple threads and prevents -+ * the LDSR from delivering any interrupts while the lock is held. -+ * Use these locks only when absolutely required. -+ * -+ * The lower 16 bits of scratchpad1 are used as per thread interrupt -+ * enable/disable bits. These bits will prevent a thread from receiving -+ * any interrupts. -+ * -+ * Bit Usage: -+ * - MT_EN_LOCK_BIT - Protects writes to MT_EN, so code can read current value -+ * then write a new value atomically (profiler for example) -+ * - ATOMIC_LOCK_BIT - Used to provide general purpose atomic handling. -+ * - LDSR_LOCK_BIT - Used by the LDSR exclusively to provide protection. -+ * - LSB 16 bits - Used by the LDSR to represent thread enable/disable bits. -+ */ -+#define MT_EN_LOCK_BIT 31 -+#define ATOMIC_LOCK_BIT 30 -+#define LDSR_LOCK_BIT 29 -+#define PCI_LOCK_BIT 28 -+ -+#if !defined(__ASSEMBLY__) -+ -+#define UBICOM32_TRYLOCK(bit) \ -+ asm volatile ( \ -+ " move.4 %0, #0 \n\t" \ -+ " bset scratchpad1, scratchpad1, #"D(bit)" \n\t" \ -+ " jmpne.f 1f \n\t" \ -+ " move.4 %0, #1 \n\t" \ -+ "1: \n\t" \ -+ : "=r" (ret) \ -+ : \ -+ : "cc", "memory" \ -+ ); \ -+ -+#define UBICOM32_UNLOCK(bit) \ -+ asm volatile ( \ -+ " bclr scratchpad1, scratchpad1, #"D(bit)" \n\t" \ -+ : \ -+ : \ -+ : "cc", "memory" \ -+ ); \ -+ -+#define UBICOM32_LOCK(bit) \ -+ asm volatile ( \ -+ "1: bset scratchpad1, scratchpad1, #"D(bit)" \n\t" \ -+ " jmpne.f 1b \n\t" \ -+ : \ -+ : \ -+ : "cc", "memory" \ -+ ); \ -+ -+/* -+ * __atomic_lock_trylock() -+ * Attempt to acquire the lock, return TRUE if acquired. -+ */ -+static inline int __atomic_lock_trylock(void) -+{ -+ int ret; -+ UBICOM32_TRYLOCK(ATOMIC_LOCK_BIT); -+ return ret; -+} -+ -+/* -+ * __atomic_lock_release() -+ * Release the global atomic lock. -+ * -+ * Note: no one is suspended waiting since this lock is a spinning lock. -+ */ -+static inline void __atomic_lock_release(void) -+{ -+ UBICOM32_UNLOCK(ATOMIC_LOCK_BIT); -+} -+ -+/* -+ * __atomic_lock_acquire() -+ * Acquire the global atomic lock, spin if not available. -+ */ -+static inline void __atomic_lock_acquire(void) -+{ -+ UBICOM32_LOCK(ATOMIC_LOCK_BIT); -+} -+#else /* __ASSEMBLY__ */ -+ -+#include <asm/ubicom32-common-asm.h> -+ -+#endif /* __ASSEMBLY__ */ -+#endif /* _ASM_UBICOM32_UBICOM32_COMMON_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32fb.h -@@ -0,0 +1,56 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32fb.h -+ * Ubicom32 architecture video frame buffer definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32FB_H -+#define _ASM_UBICOM32_UBICOM32FB_H -+ -+#include <linux/ioctl.h> -+ -+/* -+ * Set next frame -+ */ -+#define UBICOM32FB_IOCTL_SET_NEXT_FRAME _IOW('r', 1, void *) -+#define UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC _IOW('r', 2, void *) -+ -+/* -+ * Set Mode -+ */ -+#define UBICOM32FB_IOCTL_SET_MODE _IOW('r', 3, void *) -+struct ubicom32fb_mode { -+ unsigned long width; -+ unsigned long height; -+ unsigned long flags; -+ void *next_frame; -+}; -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER (1 << 8) -+ -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER (1 << 7) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV (1 << 6) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB (1 << 5) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255 (1 << 4) -+ -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255 (1 << 3) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1 (1 << 2) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1 (1 << 1) -+#define UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE (1 << 0) -+ -+#endif /* _ASM_UBICOM32_UBICOM32FB_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32hid.h -@@ -0,0 +1,133 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32hid.h -+ * Ubicom32 architecture HID driver platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_HID_H -+#define _ASM_UBICOM32_UBICOM32_HID_H -+ -+enum ubicom32hid_bl_types { -+ /* -+ * On or off, using command SET_BL_EN, PB4 -+ */ -+ UBICOM32HID_BL_TYPE_BINARY, -+ -+ /* -+ * Dimmable, using command SET_PWM, PB3 -+ */ -+ UBICOM32HID_BL_TYPE_PWM, -+}; -+ -+/* -+ * IR code mapping to event code. -+ * If there are no button mappings and no ir mappings -+ * then no input driver will be registered. -+ */ -+struct ubicom32hid_ir { -+ /* -+ * Input event code (KEY_*, SW_*, etc) -+ */ -+ int code; -+ -+ /* -+ * Input event type (EV_KEY, EV_SW, etc) -+ */ -+ int type; -+ -+ /* -+ * The IR code of this button. -+ */ -+ uint32_t ir_code; -+}; -+ -+/* -+ * Button mapping to event code. -+ * If there are no button mappings and no ir mappings -+ * then no input driver will be registered. -+ */ -+struct ubicom32hid_button { -+ /* -+ * Input event code (KEY_*, SW_*, etc) -+ */ -+ int code; -+ -+ /* -+ * Input event type (EV_KEY, EV_SW, etc) -+ */ -+ int type; -+ -+ /* -+ * Bit number of this button. -+ */ -+ uint8_t bit; -+}; -+ -+struct ubicom32hid_platform_data { -+ /* -+ * Default intensity of the backlight 0-255 -+ */ -+ u8_t default_intensity; -+ -+ /* -+ * GPIO number of the reset line and its polarity. -+ */ -+ unsigned gpio_reset; -+ int gpio_reset_polarity; -+ -+ /* -+ * TRUE if the backlight sense is active low. (inverted) -+ * FALSE if the backlight sense is active high. -+ */ -+ bool invert; -+ -+ /* -+ * Type of the backlight we are controlling -+ */ -+ enum ubicom32hid_bl_types type; -+ -+ /* -+ * Optional polling rate for input, in ms, defaults to 100ms -+ */ -+ int poll_interval; -+ -+ /* -+ * Optional name to register as input device -+ */ -+ const char *input_name; -+ -+ /* -+ * Button mapping array -+ */ -+ const struct ubicom32hid_button *buttons; -+ int nbuttons; -+ -+ /* -+ * IR mapping array -+ */ -+ const struct ubicom32hid_ir *ircodes; -+ int nircodes; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_HID_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32input.h -@@ -0,0 +1,76 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32input.h -+ * Ubicom32 Input driver, based on gpio-keys -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * TODO: add groups for inputs which can be sampled together -+ */ -+ -+#ifndef _ASM_UBICOM32_UBICOM32_INPUT_H -+#define _ASM_UBICOM32_UBICOM32_INPUT_H -+ -+struct ubicom32input_button { -+ /* -+ * Input event code (KEY_*, SW_*, etc) -+ */ -+ int code; -+ -+ /* -+ * Input event type (EV_KEY, EV_SW, etc) -+ */ -+ int type; -+ -+ /* -+ * GPIO to poll -+ */ -+ int gpio; -+ -+ /* -+ * 1 for active low, 0 for active high -+ */ -+ int active_low; -+ -+ /* -+ * Description, used for reserving GPIOs -+ */ -+ const char *desc; -+}; -+ -+struct ubicom32input_platform_data { -+ struct ubicom32input_button *buttons; -+ int nbuttons; -+ -+ /* -+ * Optional poll interval, in ms, defaults to 50ms -+ */ -+ int poll_interval; -+ -+ /* -+ * Option Name of this driver -+ */ -+ const char *name; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_INPUT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32input_i2c.h -@@ -0,0 +1,71 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32input_i2c.h -+ * Ubicom32 architecture Input driver over I2C platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * TODO: add groups for inputs which can be sampled together -+ */ -+ -+#ifndef _ASM_UBICOM32_UBICOM32_INPUT_I2C_H -+#define _ASM_UBICOM32_UBICOM32_INPUT_I2C_H -+ -+struct ubicom32input_i2c_button { -+ /* -+ * Input event code (KEY_*, SW_*, etc) -+ */ -+ int code; -+ -+ /* -+ * Input event type (EV_KEY, EV_SW, etc) -+ */ -+ int type; -+ -+ /* -+ * Bit number of this button. (0 - ngpio) -+ */ -+ int bit; -+ -+ /* -+ * 1 for active low, 0 for active high -+ */ -+ int active_low; -+}; -+ -+struct ubicom32input_i2c_platform_data { -+ struct ubicom32input_i2c_button *buttons; -+ int nbuttons; -+ -+ /* -+ * Optional poll interval, in ms, defaults to 100ms -+ */ -+ int poll_interval; -+ -+ /* -+ * Option Name of this driver -+ */ -+ const char *name; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_INPUT_I2C_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32lcd.h -@@ -0,0 +1,39 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32lcd.h -+ * Ubicom32 architecture LCD driver platform data definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_LCD_H -+#define _ASM_UBICOM32_UBICOM32_LCD_H -+ -+struct ubicom32lcd_platform_data { -+ /* -+ * GPIO and polarity for VGH signal. A FALSE polarity is active low, TRUE is active high. -+ */ -+ int vgh_gpio; -+ bool vgh_polarity; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_LCD_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32ring.h -@@ -0,0 +1,103 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32ring.h -+ * Userspace I/O platform driver for Ubicom32 ring buffers -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#ifndef _ASM_UBICOM32_UBICOM32RING_H -+#define _ASM_UBICOM32_UBICOM32RING_H -+ -+#define UIO_UBICOM32RING_REG_VERSION 2 -+ -+struct uio_ubicom32ring_desc { -+ volatile unsigned int head; -+ volatile unsigned int tail; -+ unsigned int entries; -+ volatile unsigned int ring[0]; -+}; -+ -+struct uio_ubicom32ring_regs { -+ unsigned int version; -+ -+ /* -+ * Magic type used to identify the ring set. Each driver will -+ * have a different magic value. -+ */ -+ unsigned int magic; -+ -+ /* -+ * Registers defined by the driver -+ */ -+ unsigned int regs_size; -+ void *regs; -+ -+ /* -+ * The locations of the rings -+ * -+ * DO NOT ADD ANYTHING BELOW THIS LINE -+ */ -+ unsigned int num_rings; -+ struct uio_ubicom32ring_desc *rings[0]; -+}; -+ -+/* -+ * ringtio_ring_flush -+ */ -+static inline void ringtio_ring_flush(struct uio_ubicom32ring_desc *rd) -+{ -+ rd->head = rd->tail = 0; -+} -+ -+/* -+ * ringtio_ring_get -+ */ -+static inline int ringtio_ring_get(struct uio_ubicom32ring_desc *rd, void **val) -+{ -+ if (rd->head == rd->tail) { -+ return 0; -+ } -+ -+ *val = (void *)rd->ring[rd->head++]; -+ if (rd->head == rd->entries) { -+ rd->head = 0; -+ } -+ return 1; -+} -+ -+/* -+ * ringtio_ring_put -+ */ -+static inline int ringtio_ring_put(struct uio_ubicom32ring_desc *rd, void *val) -+{ -+ unsigned int newtail = rd->tail + 1; -+ if (newtail == rd->entries) { -+ newtail = 0; -+ } -+ -+ if (newtail == rd->head) { -+ return 0; -+ } -+ -+ rd->ring[rd->tail] = (unsigned int)val; -+ rd->tail = newtail; -+ return 1; -+} -+ -+#endif /* _ASM_UBICOM32_UBICOM32RING_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32sd.h -@@ -0,0 +1,45 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32sd.h -+ * Ubicom32SD public include file -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_SD_H -+#define _ASM_UBICOM32_UBICOM32_SD_H -+ -+struct ubicom32sd_card { -+ /* -+ * GPIOs of PWR, WP and CD lines. -+ * Polarity is 1 for active high and 0 for active low -+ */ -+ int pin_pwr; -+ bool pwr_polarity; -+ int pin_wp; -+ bool wp_polarity; -+ int pin_cd; -+ bool cd_polarity; -+}; -+ -+struct ubicom32sd_platform_data { -+ int ncards; -+ -+ struct ubicom32sd_card *cards; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_SD_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32-spi-gpio.h -@@ -0,0 +1,62 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32-spi-gpio.h -+ * Platform driver data definitions for GPIO based SPI driver. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_SPI_GPIO_H -+#define _ASM_UBICOM32_UBICOM32_SPI_GPIO_H -+ -+struct ubicom32_spi_gpio_platform_data { -+ /* -+ * GPIO to use for MOSI, MISO, CLK -+ */ -+ int pin_mosi; -+ int pin_miso; -+ int pin_clk; -+ -+ /* -+ * Default state of CLK line -+ */ -+ int clk_default; -+ -+ /* -+ * Number of chip selects on this bus -+ */ -+ int num_chipselect; -+ -+ /* -+ * The bus number of this chip -+ */ -+ int bus_num; -+}; -+ -+struct ubicom32_spi_gpio_controller_data { -+ /* -+ * GPIO to use for chip select -+ */ -+ int pin_cs; -+}; -+ -+#endif /* _ASM_UBICOM32_UBICOM32_SPI_GPIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32suart.h -@@ -0,0 +1,36 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32suart.h -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_SUART_H -+#define _ASM_UBICOM32_UBICOM32_SUART_H -+ -+/* -+ * Platform resource id for serdes uart clock parameter -+ */ -+#define UBICOM32_SUART_IORESOURCE_CLOCK (1) -+ -+#endif /* _ASM_UBICOM32_UBICOM32_SUART_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ubicom32-tio.h -@@ -0,0 +1,42 @@ -+/* -+ * arch/ubicom32/include/asm/ubicom32-tio.h -+ * Threaded I/O interface definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UBICOM32_TIO_H -+#define _ASM_UBICOM32_UBICOM32_TIO_H -+ -+extern u8_t usb_tio_read_u16(u32_t address, u16_t *data); -+extern u8_t usb_tio_read_u8(u32_t address, u8_t *data); -+ -+extern u8_t usb_tio_write_u16(u32_t address, u16_t data); -+extern u8_t usb_tio_write_u8(u32_t address, u8_t data); -+ -+extern u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes); -+extern u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes); -+extern u8_t usb_tio_write_fifo_sync(u32_t address, u32_t buffer, u32_t bytes); -+extern void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx); -+ -+#endif /* _ASM_UBICOM32_UBICOM32_TIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/ucontext.h -@@ -0,0 +1,39 @@ -+/* -+ * arch/ubicom32/include/asm/ucontext.h -+ * Definition of ucontext structure for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UCONTEXT_H -+#define _ASM_UBICOM32_UCONTEXT_H -+ -+struct ucontext { -+ unsigned long uc_flags; -+ struct ucontext *uc_link; -+ stack_t uc_stack; -+ struct sigcontext uc_mcontext; -+ sigset_t uc_sigmask; /* mask last for extensibility */ -+}; -+ -+#endif /* _ASM_UBICOM32_UCONTEXT_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/unaligned.h -@@ -0,0 +1,44 @@ -+/* -+ * arch/ubicom32/include/asm/unaligned.h -+ * Ubicom32 architecture unaligned memory access definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * TODO: This is a copy of arm unaligned handling that probably needs -+ * to be optimized for UBICOM32, but it works for now. -+ */ -+ -+#ifndef _ASM_UBICOM32_UNALIGNED_H -+#define _ASM_UBICOM32_UNALIGNED_H -+ -+#include <asm/types.h> -+ -+#include <linux/unaligned/le_byteshift.h> -+#include <linux/unaligned/be_byteshift.h> -+#include <linux/unaligned/generic.h> -+ -+#define get_unaligned __get_unaligned_be -+#define put_unaligned __put_unaligned_be -+ -+#endif /* _ASM_UBICOM32_UNALIGNED_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/unistd.h -@@ -0,0 +1,400 @@ -+/* -+ * arch/ubicom32/include/asm/unistd.h -+ * Ubicom32 architecture syscall definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_UNISTD_H -+#define _ASM_UBICOM32_UNISTD_H -+ -+/* -+ * This file contains the system call numbers. -+ */ -+ -+#define __NR_restart_syscall 0 -+#define __NR_exit 1 -+#define __NR_fork 2 -+#define __NR_read 3 -+#define __NR_write 4 -+#define __NR_open 5 -+#define __NR_close 6 -+#define __NR_waitpid 7 -+#define __NR_creat 8 -+#define __NR_link 9 -+#define __NR_unlink 10 -+#define __NR_execve 11 -+#define __NR_chdir 12 -+#define __NR_time 13 -+#define __NR_mknod 14 -+#define __NR_chmod 15 -+#define __NR_chown 16 -+#define __NR_break 17 -+#define __NR_oldstat 18 -+#define __NR_lseek 19 -+#define __NR_getpid 20 -+#define __NR_mount 21 -+#define __NR_umount 22 -+#define __NR_setuid 23 -+#define __NR_getuid 24 -+#define __NR_stime 25 -+#define __NR_ptrace 26 -+#define __NR_alarm 27 -+#define __NR_oldfstat 28 -+#define __NR_pause 29 -+#define __NR_utime 30 -+#define __NR_stty 31 -+#define __NR_gtty 32 -+#define __NR_access 33 -+#define __NR_nice 34 -+#define __NR_ftime 35 -+#define __NR_sync 36 -+#define __NR_kill 37 -+#define __NR_rename 38 -+#define __NR_mkdir 39 -+#define __NR_rmdir 40 -+#define __NR_dup 41 -+#define __NR_pipe 42 -+#define __NR_times 43 -+#define __NR_prof 44 -+#define __NR_brk 45 -+#define __NR_setgid 46 -+#define __NR_getgid 47 -+#define __NR_signal 48 -+#define __NR_geteuid 49 -+#define __NR_getegid 50 -+#define __NR_acct 51 -+#define __NR_umount2 52 -+#define __NR_lock 53 -+#define __NR_ioctl 54 -+#define __NR_fcntl 55 -+#define __NR_mpx 56 -+#define __NR_setpgid 57 -+#define __NR_ulimit 58 -+#define __NR_oldolduname 59 -+#define __NR_umask 60 -+#define __NR_chroot 61 -+#define __NR_ustat 62 -+#define __NR_dup2 63 -+#define __NR_getppid 64 -+#define __NR_getpgrp 65 -+#define __NR_setsid 66 -+#define __NR_sigaction 67 -+#define __NR_sgetmask 68 -+#define __NR_ssetmask 69 -+#define __NR_setreuid 70 -+#define __NR_setregid 71 -+#define __NR_sigsuspend 72 -+#define __NR_sigpending 73 -+#define __NR_sethostname 74 -+#define __NR_setrlimit 75 -+#define __NR_getrlimit 76 -+#define __NR_getrusage 77 -+#define __NR_gettimeofday 78 -+#define __NR_settimeofday 79 -+#define __NR_getgroups 80 -+#define __NR_setgroups 81 -+#define __NR_select 82 -+#define __NR_symlink 83 -+#define __NR_oldlstat 84 -+#define __NR_readlink 85 -+#define __NR_uselib 86 -+#define __NR_swapon 87 -+#define __NR_reboot 88 -+#define __NR_readdir 89 -+#define __NR_mmap 90 -+#define __NR_munmap 91 -+#define __NR_truncate 92 -+#define __NR_ftruncate 93 -+#define __NR_fchmod 94 -+#define __NR_fchown 95 -+#define __NR_getpriority 96 -+#define __NR_setpriority 97 -+#define __NR_profil 98 -+#define __NR_statfs 99 -+#define __NR_fstatfs 100 -+#define __NR_ioperm 101 -+#define __NR_socketcall 102 -+#define __NR_syslog 103 -+#define __NR_setitimer 104 -+#define __NR_getitimer 105 -+#define __NR_stat 106 -+#define __NR_lstat 107 -+#define __NR_fstat 108 -+#define __NR_olduname 109 -+#define __NR_iopl /* 110 */ not supported -+#define __NR_vhangup 111 -+#define __NR_idle /* 112 */ Obsolete -+#define __NR_vm86 /* 113 */ not supported -+#define __NR_wait4 114 -+#define __NR_swapoff 115 -+#define __NR_sysinfo 116 -+#define __NR_ipc 117 -+#define __NR_fsync 118 -+#define __NR_sigreturn 119 -+#define __NR_clone 120 -+#define __NR_setdomainname 121 -+#define __NR_uname 122 -+#define __NR_cacheflush 123 -+#define __NR_adjtimex 124 -+#define __NR_mprotect 125 -+#define __NR_sigprocmask 126 -+#define __NR_create_module 127 -+#define __NR_init_module 128 -+#define __NR_delete_module 129 -+#define __NR_get_kernel_syms 130 -+#define __NR_quotactl 131 -+#define __NR_getpgid 132 -+#define __NR_fchdir 133 -+#define __NR_bdflush 134 -+#define __NR_sysfs 135 -+#define __NR_personality 136 -+#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ -+#define __NR_setfsuid 138 -+#define __NR_setfsgid 139 -+#define __NR__llseek 140 -+#define __NR_getdents 141 -+#define __NR__newselect 142 -+#define __NR_flock 143 -+#define __NR_msync 144 -+#define __NR_readv 145 -+#define __NR_writev 146 -+#define __NR_getsid 147 -+#define __NR_fdatasync 148 -+#define __NR__sysctl 149 -+#define __NR_mlock 150 -+#define __NR_munlock 151 -+#define __NR_mlockall 152 -+#define __NR_munlockall 153 -+#define __NR_sched_setparam 154 -+#define __NR_sched_getparam 155 -+#define __NR_sched_setscheduler 156 -+#define __NR_sched_getscheduler 157 -+#define __NR_sched_yield 158 -+#define __NR_sched_get_priority_max 159 -+#define __NR_sched_get_priority_min 160 -+#define __NR_sched_rr_get_interval 161 -+#define __NR_nanosleep 162 -+#define __NR_mremap 163 -+#define __NR_setresuid 164 -+#define __NR_getresuid 165 -+#define __NR_getpagesize 166 -+#define __NR_query_module 167 -+#define __NR_poll 168 -+#define __NR_nfsservctl 169 -+#define __NR_setresgid 170 -+#define __NR_getresgid 171 -+#define __NR_prctl 172 -+#define __NR_rt_sigreturn 173 -+#define __NR_rt_sigaction 174 -+#define __NR_rt_sigprocmask 175 -+#define __NR_rt_sigpending 176 -+#define __NR_rt_sigtimedwait 177 -+#define __NR_rt_sigqueueinfo 178 -+#define __NR_rt_sigsuspend 179 -+#define __NR_pread64 180 -+#define __NR_pwrite64 181 -+#define __NR_lchown 182 -+#define __NR_getcwd 183 -+#define __NR_capget 184 -+#define __NR_capset 185 -+#define __NR_sigaltstack 186 -+#define __NR_sendfile 187 -+#define __NR_getpmsg 188 /* some people actually want streams */ -+#define __NR_putpmsg 189 /* some people actually want streams */ -+#define __NR_vfork 190 -+#define __NR_ugetrlimit 191 -+#define __NR_mmap2 192 -+#define __NR_truncate64 193 -+#define __NR_ftruncate64 194 -+#define __NR_stat64 195 -+#define __NR_lstat64 196 -+#define __NR_fstat64 197 -+#define __NR_chown32 198 -+#define __NR_getuid32 199 -+#define __NR_getgid32 200 -+#define __NR_geteuid32 201 -+#define __NR_getegid32 202 -+#define __NR_setreuid32 203 -+#define __NR_setregid32 204 -+#define __NR_getgroups32 205 -+#define __NR_setgroups32 206 -+#define __NR_fchown32 207 -+#define __NR_setresuid32 208 -+#define __NR_getresuid32 209 -+#define __NR_setresgid32 210 -+#define __NR_getresgid32 211 -+#define __NR_lchown32 212 -+#define __NR_setuid32 213 -+#define __NR_setgid32 214 -+#define __NR_setfsuid32 215 -+#define __NR_setfsgid32 216 -+#define __NR_pivot_root 217 -+#define __NR_getdents64 220 -+#define __NR_gettid 221 -+#define __NR_tkill 222 -+#define __NR_setxattr 223 -+#define __NR_lsetxattr 224 -+#define __NR_fsetxattr 225 -+#define __NR_getxattr 226 -+#define __NR_lgetxattr 227 -+#define __NR_fgetxattr 228 -+#define __NR_listxattr 229 -+#define __NR_llistxattr 230 -+#define __NR_flistxattr 231 -+#define __NR_removexattr 232 -+#define __NR_lremovexattr 233 -+#define __NR_fremovexattr 234 -+#define __NR_futex 235 -+#define __NR_sendfile64 236 -+#define __NR_mincore 237 -+#define __NR_madvise 238 -+#define __NR_fcntl64 239 -+#define __NR_readahead 240 -+#define __NR_io_setup 241 -+#define __NR_io_destroy 242 -+#define __NR_io_getevents 243 -+#define __NR_io_submit 244 -+#define __NR_io_cancel 245 -+#define __NR_fadvise64 246 -+#define __NR_exit_group 247 -+#define __NR_lookup_dcookie 248 -+#define __NR_epoll_create 249 -+#define __NR_epoll_ctl 250 -+#define __NR_epoll_wait 251 -+#define __NR_remap_file_pages 252 -+#define __NR_set_tid_address 253 -+#define __NR_timer_create 254 -+#define __NR_timer_settime 255 -+#define __NR_timer_gettime 256 -+#define __NR_timer_getoverrun 257 -+#define __NR_timer_delete 258 -+#define __NR_clock_settime 259 -+#define __NR_clock_gettime 260 -+#define __NR_clock_getres 261 -+#define __NR_clock_nanosleep 262 -+#define __NR_statfs64 263 -+#define __NR_fstatfs64 264 -+#define __NR_tgkill 265 -+#define __NR_utimes 266 -+#define __NR_fadvise64_64 267 -+#define __NR_mbind 268 -+#define __NR_get_mempolicy 269 -+#define __NR_set_mempolicy 270 -+#define __NR_mq_open 271 -+#define __NR_mq_unlink 272 -+#define __NR_mq_timedsend 273 -+#define __NR_mq_timedreceive 274 -+#define __NR_mq_notify 275 -+#define __NR_mq_getsetattr 276 -+#define __NR_waitid 277 -+#define __NR_vserver 278 -+#define __NR_add_key 279 -+#define __NR_request_key 280 -+#define __NR_keyctl 281 -+#define __NR_ioprio_set 282 -+#define __NR_ioprio_get 283 -+#define __NR_inotify_init 284 -+#define __NR_inotify_add_watch 285 -+#define __NR_inotify_rm_watch 286 -+#define __NR_migrate_pages 287 -+#define __NR_openat 288 -+#define __NR_mkdirat 289 -+#define __NR_mknodat 290 -+#define __NR_fchownat 291 -+#define __NR_futimesat 292 -+#define __NR_fstatat64 293 -+#define __NR_unlinkat 294 -+#define __NR_renameat 295 -+#define __NR_linkat 296 -+#define __NR_symlinkat 297 -+#define __NR_readlinkat 298 -+#define __NR_fchmodat 299 -+#define __NR_faccessat 300 -+#define __NR_pselect6 301 -+#define __NR_ppoll 302 -+#define __NR_unshare 303 -+#define __NR_set_robust_list 304 -+#define __NR_get_robust_list 305 -+#define __NR_splice 306 -+#define __NR_sync_file_range 307 -+#define __NR_tee 308 -+#define __NR_vmsplice 309 -+#define __NR_move_pages 310 -+#define __NR_sched_setaffinity 311 -+#define __NR_sched_getaffinity 312 -+#define __NR_kexec_load 313 -+#define __NR_getcpu 314 -+#define __NR_epoll_pwait 315 -+#define __NR_utimensat 316 -+#define __NR_signalfd 317 -+#define __NR_timerfd_create 318 -+#define __NR_eventfd 319 -+#define __NR_fallocate 320 -+#define __NR_timerfd_settime 321 -+#define __NR_timerfd_gettime 322 -+#define __NR_signalfd4 323 -+#define __NR_eventfd2 324 -+#define __NR_epoll_create1 325 -+#define __NR_dup3 326 -+#define __NR_pipe2 327 -+#define __NR_inotify_init1 328 -+ -+#ifdef __KERNEL__ -+ -+#define NR_syscalls 329 -+ -+#define __ARCH_WANT_IPC_PARSE_VERSION -+#define __ARCH_WANT_OLD_READDIR -+#define __ARCH_WANT_OLD_STAT -+#define __ARCH_WANT_STAT64 -+#define __ARCH_WANT_SYS_ALARM -+#define __ARCH_WANT_SYS_GETHOSTNAME -+#define __ARCH_WANT_SYS_PAUSE -+#define __ARCH_WANT_SYS_SGETMASK -+#define __ARCH_WANT_SYS_SIGNAL -+#define __ARCH_WANT_SYS_TIME -+#define __ARCH_WANT_SYS_UTIME -+#define __ARCH_WANT_SYS_WAITPID -+#define __ARCH_WANT_SYS_SOCKETCALL -+#define __ARCH_WANT_SYS_FADVISE64 -+#define __ARCH_WANT_SYS_GETPGRP -+#define __ARCH_WANT_SYS_LLSEEK -+#define __ARCH_WANT_SYS_NICE -+#define __ARCH_WANT_SYS_OLD_GETRLIMIT -+#define __ARCH_WANT_SYS_OLDUMOUNT -+#define __ARCH_WANT_SYS_SIGPENDING -+#define __ARCH_WANT_SYS_SIGPROCMASK -+#define __ARCH_WANT_SYS_RT_SIGACTION -+ -+/* -+ * "Conditional" syscalls -+ * -+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))), -+ * but it doesn't work on all toolchains, so we just do it by hand -+ */ -+//#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -+#define cond_syscall(x) long x(void) __attribute__((weak,alias("sys_ni_syscall"))) -+#endif /* __KERNEL__ */ -+ -+#endif /* _ASM_UBICOM32_UNISTD_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/user.h -@@ -0,0 +1,82 @@ -+/* -+ * arch/ubicom32/include/asm/user.h -+ * Ubicom32 architecture core file definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_USER_H -+#define _ASM_UBICOM32_USER_H -+ -+#include <asm/ptrace.h> -+#include <asm/page.h> -+/* -+ * Adapted from <asm-powerpc/user.h> -+ * -+ * Core file format: The core file is written in such a way that gdb -+ * can understand it and provide useful information to the user (under -+ * linux we use the `trad-core' bfd, NOT the osf-core). The file contents -+ * are as follows: -+ * -+ * upage: 1 page consisting of a user struct that tells gdb -+ * what is present in the file. Directly after this is a -+ * copy of the task_struct, which is currently not used by gdb, -+ * but it may come in handy at some point. All of the registers -+ * are stored as part of the upage. The upage should always be -+ * only one page long. -+ * data: The data segment follows next. We use current->end_text to -+ * current->brk to pick up all of the user variables, plus any memory -+ * that may have been sbrk'ed. No attempt is made to determine if a -+ * page is demand-zero or if a page is totally unused, we just cover -+ * the entire range. All of the addresses are rounded in such a way -+ * that an integral number of pages is written. -+ * stack: We need the stack information in order to get a meaningful -+ * backtrace. We need to write the data from usp to -+ * current->start_stack, so we round each of these in order to be able -+ * to write an integer number of pages. -+ */ -+ -+struct user_ubicom32fp_struct { -+}; -+ -+struct user { -+ struct pt_regs regs; /* entire machine state */ -+ size_t u_tsize; /* text size (pages) */ -+ size_t u_dsize; /* data size (pages) */ -+ size_t u_ssize; /* stack size (pages) */ -+ unsigned long start_code; /* text starting address */ -+ unsigned long start_data; /* data starting address */ -+ unsigned long start_stack; /* stack starting address */ -+ long int signal; /* signal causing core dump */ -+ unsigned long u_ar0; /* help gdb find registers */ -+ unsigned long magic; /* identifies a core file */ -+ char u_comm[32]; /* user command name */ -+}; -+ -+#define NBPG PAGE_SIZE -+#define UPAGES 1 -+#define HOST_TEXT_START_ADDR (u.start_code) -+#define HOST_DATA_START_ADDR (u.start_data) -+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) -+ -+#endif /* _ASM_UBICOM32_USER_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/vdc_tio.h -@@ -0,0 +1,129 @@ -+/* -+ * arch/ubicom32/include/asm/vdc_tio.h -+ * Ubicom32 architecture VDC TIO definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_VDC_TIO_H -+#define _ASM_UBICOM32_VDC_TIO_H -+ -+#include <asm/devtree.h> -+ -+#define VDCTIO_VP_VERSION 5 -+ -+#define VDCTIO_SCALE_FLAG_VSUB (1 << 9) -+#define VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER (1 << 8) -+#define VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER (1 << 7) -+#define VDCTIO_SCALE_FLAG_YUV (1 << 6) -+#define VDCTIO_SCALE_FLAG_VRANGE_16_255 (1 << 5) -+#define VDCTIO_SCALE_FLAG_VRANGE_0_255 (1 << 4) -+#define VDCTIO_SCALE_FLAG_HSUB_2_1 (1 << 3) -+#define VDCTIO_SCALE_FLAG_HSUB_1_1 (1 << 2) -+#define VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER (1 << 1) -+#define VDCTIO_SCALE_FLAG_ENABLE (1 << 0) -+ -+#define VDCTIO_NEXT_FRAME_FLAG_YUV_BIT 0 -+#define VDCTIO_NEXT_FRAME_FLAG_YUV (1 << (VDCTIO_NEXT_FRAME_FLAG_YUV_BIT)) -+ -+#define VDCTIO_CAPS_SUPPORTS_SCALING (1 << 0) -+ -+#define VDCTIO_COMMAND_START (1 << 3) -+#define VDCTIO_COMMAND_SET_COEFF (1 << 2) -+#define VDCTIO_COMMAND_SET_LUT (1 << 1) -+#define VDCTIO_COMMAND_SET_SCALE_MODE (1 << 0) -+ -+/* -+ * Command / Data registers to access the VDC -+ */ -+struct vdc_tio_vp_regs { -+ /* -+ * Version of this TIO register map -+ */ -+ u32_t version; -+ -+ volatile u32_t command; -+ -+ /* -+ * Next frame pointer, when the command VDCTIO_COMMAND_SET_FRAME_BUFFER is set, -+ * the vdc will take the pointer here and display it. -+ */ -+ void *next_frame; -+ u32_t next_frame_flags; -+ -+ /* -+ * These map directly into the PIXP registers 0x20-0x80. -+ * DO NOT change the order of these three variables. -+ */ -+ u32_t red_lut[6]; -+ u32_t blue_lut[6]; -+ u32_t green_lut[13]; -+ -+ /* -+ * These map directly into the PIXP registers 0x04, 0x08 -+ */ -+ u32_t coeff0; -+ u32_t coeff1; -+ -+ /* -+ * There are used to set the scaling parameters -+ */ -+ u32_t x_in; -+ u32_t x_out; -+ u32_t y_in; -+ u32_t y_out; -+ u32_t scale_flags; -+ -+ /* -+ * Current frame number, monotonically increasing number -+ */ -+ u32_t frame_number; -+ -+ /* -+ * These variables tell the guest OS what the underlying hardware looks like -+ */ -+ u32_t caps; -+ u32_t xres; -+ u32_t yres; -+ u32_t fb_align; -+ u8_t bpp; -+ u8_t rbits; -+ u8_t gbits; -+ u8_t bbits; -+ u8_t rshift; -+ u8_t gshift; -+ u8_t bshift; -+}; -+ -+/* -+ * Devtree node for VDC -+ */ -+struct vdc_tio_node { -+ struct devtree_node dn; -+ -+ struct vdc_tio_vp_regs *regs; -+}; -+ -+extern void vdc_tio_init(void); -+ -+#endif /* _ASM_UBICOM32_VDC_TIO_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/vga.h -@@ -0,0 +1,71 @@ -+/* -+ * arch/ubicom32/include/asm/vga.h -+ * Ubicom32 low level VGA/frame buffer definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * (c) 1998 Martin Mares <mj@ucw.cz> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#ifndef _ASM_UBICOM32_VGA_H -+#define _ASM_UBICOM32_VGA_H -+ -+#include <asm/byteorder.h> -+ -+/* -+ * On the PC, we can just recalculate addresses and then -+ * access the videoram directly without any black magic. -+ */ -+ -+#define VGA_MAP_MEM(x, s) (0xb0000000L + (unsigned long)(x)) -+ -+#define vga_readb(x) (*(x)) -+#define vga_writeb(x, y) (*(y) = (x)) -+ -+#define VT_BUF_HAVE_RW -+/* -+ * These are only needed for supporting VGA or MDA text mode, which use little -+ * endian byte ordering. -+ * In other cases, we can optimize by using native byte ordering and -+ * <linux/vt_buffer.h> has already done the right job for us. -+ */ -+ -+#undef scr_writew -+#undef scr_readw -+ -+static inline void scr_writew(u16 val, volatile u16 *addr) -+{ -+ *addr = cpu_to_le16(val); -+} -+ -+static inline u16 scr_readw(volatile const u16 *addr) -+{ -+ return le16_to_cpu(*addr); -+} -+ -+#define scr_memcpyw(d, s, c) memcpy(d, s, c) -+#define scr_memmovew(d, s, c) memmove(d, s, c) -+#define VT_BUF_HAVE_MEMCPYW -+#define VT_BUF_HAVE_MEMMOVEW -+ -+#endif /* _ASM_UBICOM32_VGA_H */ ---- /dev/null -+++ b/arch/ubicom32/include/asm/xor.h -@@ -0,0 +1,33 @@ -+/* -+ * arch/ubicom32/include/asm/xor.h -+ * Generic xor.h definitions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _ASM_UBICOM32_XOR_H -+#define _ASM_UBICOM32_XOR_H -+ -+#include <asm-generic/xor.h> -+ -+#endif /* _ASM_UBICOM32_XOR_H */ ---- /dev/null -+++ b/arch/ubicom32/Kconfig -@@ -0,0 +1,455 @@ -+# -+# For a description of the syntax of this configuration file, -+# see Documentation/kbuild/kconfig-language.txt. -+# -+ -+mainmenu "uClinux/ubicom32 (w/o MMU) Kernel Configuration" -+ -+config RAMBASE -+ hex -+ default "0x40000000" -+ help -+ Define the address that RAM starts at. -+ -+config UBICOM32 -+ bool -+ select HAVE_OPROFILE -+ default y -+ -+config RAMKERNEL -+ bool -+ default y -+ -+config CPU_BIG_ENDIAN -+ bool -+ default y -+ -+config FORCE_MAX_ZONEORDER -+ int -+ default "14" -+ -+config HAVE_CLK -+ bool -+ default y -+ -+config MMU -+ bool -+ default n -+ -+config FPU -+ bool -+ default n -+ -+config ZONE_DMA -+ bool -+ default y -+ -+config RWSEM_GENERIC_SPINLOCK -+ bool -+ default y -+ -+config RWSEM_XCHGADD_ALGORITHM -+ bool -+ default n -+ -+config ARCH_HAS_ILOG2_U32 -+ bool -+ default n -+ -+config ARCH_HAS_ILOG2_U64 -+ bool -+ default n -+ -+config GENERIC_FIND_NEXT_BIT -+ bool -+ default y -+ -+config GENERIC_GPIO -+ bool -+ default y -+ -+config GPIOLIB -+ bool -+ default y -+ -+config GENERIC_HWEIGHT -+ bool -+ default y -+ -+config GENERIC_HARDIRQS -+ bool -+ default y -+ -+config STACKTRACE_SUPPORT -+ bool -+ default y -+ -+config LOCKDEP_SUPPORT -+ bool -+ default y -+ -+config GENERIC_CALIBRATE_DELAY -+ bool -+ default y -+ -+config GENERIC_TIME -+ bool -+ default y -+ -+config TIME_LOW_RES -+ bool -+ default y -+ -+config GENERIC_CLOCKEVENTS -+ bool -+ default y -+ -+config GENERIC_CLOCKEVENTS_BROADCAST -+ bool -+ depends on GENERIC_CLOCKEVENTS -+ default y if SMP && !LOCAL_TIMERS -+ -+config NO_IOPORT -+ def_bool y -+ -+config ARCH_SUPPORTS_AOUT -+ def_bool y -+ -+config IRQ_PER_CPU -+ bool -+ default y -+ -+config SCHED_NO_NO_OMIT_FRAME_POINTER -+ bool -+ default y -+ -+menu "Processor type and features" -+ -+config BRD_32MB -+ bool -+ depends on IP5160EVAL -+ help -+ Board has 32MB of RAM on it. It is a hidden option used to select default for size of RAM -+ default n -+ -+config BRD_64MB -+ bool -+ depends on IP7145DPF || IP7160RGW || IP7160BRINGUP || IP7160DPF || IP5170DPF || IP5160DEV -+ help -+ Board has 64MB of RAM on it. It is a hidden option used to select default for size of RAM -+ default n -+ -+config BRD_128MB -+ bool -+ depends on IP7500MODULE || IP7500AV || IP7500MEDIA -+ help -+ Board has 128MB of RAM on it. It is a hidden option used to select default for size of RAM -+ default n -+ -+comment "Processor type will be selected by Board" -+ -+config UBICOM32_V3 -+ bool -+ help -+ Ubicom IP5xxx series processor support. -+ -+config UBICOM32_V4 -+ bool -+ help -+ Ubicom IP7xxx series processor support. -+ -+comment "Board" -+choice -+ prompt "Board type" -+ help -+ Select your board. -+ -+config NOBOARD -+ bool "No board selected" -+ help -+ Default. Don't select any board specific config. Will not build unless you change! -+ -+# Add your boards here -+source "arch/ubicom32/mach-ip5k/Kconfig" -+source "arch/ubicom32/mach-ip7k/Kconfig" -+ -+endchoice -+ -+comment "Kernel Options" -+config SMP -+ bool "Symmetric multi-processing support" -+ select USE_GENERIC_SMP_HELPERS -+ default n -+ help -+ Enables multithreading support. Enabling SMP support increases -+ the size of system data structures. SMP support can have either -+ positive or negative impact on performance depending on workloads. -+ -+ If you do not know what to do here, say N. -+ -+config NR_CPUS -+ int "Number of configured CPUs" -+ range 2 32 -+ default 2 -+ depends on SMP -+ help -+ Upper bound on the number of CPUs. Space is reserved -+ at compile time for this many CPUs. -+ -+config LOCAL_TIMERS -+ bool "Use local timer interrupts" -+ depends on SMP -+ default y -+ help -+ Enable support for local timers on SMP platforms, rather then the -+ legacy IPI broadcast method. Local timers allows the system -+ accounting to be spread across the timer interval, preventing a -+ "thundering herd" at every timer tick. A physical timer is allocated -+ per cpu. -+ -+config TIMER_EXTRA_ALLOC -+ int "Number of additional physical timer events to create" -+ depends on GENERIC_CLOCKEVENTS -+ default 0 -+ help -+ The Ubicom32 processor has a number of event timers that can be wrapped -+ in Linux clock event structures (assuming that the timers are not being -+ used for another purpose). Based on the value of LOCAL_TIMERS, either -+ 2 timers will be used or a timer will be used for every CPU. This value -+ allows the programmer to select additional timers over that amount. -+ -+config IRQSTACKS -+ bool "Create separate stacks for interrupt handling" -+ default n -+ help -+ Selecting this causes interrupts to be created on a separate -+ stack instead of nesting the interrupts on the kernel stack. -+ -+config IRQSTACKS_USEOCM -+ bool "Use OCM for interrupt stacks" -+ default n -+ depends on IRQSTACKS -+ help -+ Selecting this cause the interrupt stacks to be placed in OCM -+ reducing cache misses at the expense of using the OCM for servicing -+ interrupts. -+ -+menu "OCM Instruction Heap" -+ -+config OCM_MODULES_RESERVATION -+ int "OCM Instruction heap reservation. 0-192 kB" -+ range 0 192 -+ default "0" -+ help -+ The minimum amount of OCM memory to reserve for kernel loadable module -+ code. If you are not using this memory it cannot be used for anything -+ else. Leave it as 0 if you have prebuilt modules that are compiled with -+ OCM support. -+ -+config OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE -+ bool "Give all unused ocm code space to the ocm instruction heap." -+ default n -+ help -+ Allow the OCM instruction heap allocation to consume any remaining -+ unused OCM code space. The result of this is that you will not have -+ and deterministic results, but you will not have any waste either. -+ -+config OCM_MODULES_FALLBACK_TO_DDR -+ bool "Loadable Modules requiring OCM may fallback to use DDR." -+ default n -+ help -+ If a module cannot get the OCM code it requires allow DDR to -+ be used instead. -+endmenu -+ -+config HZ -+ int "Frequency of 'jiffies' (for polling)" -+ default 1000 -+ help -+ 100 is common for embedded systems, but 1000 allows -+ you to do more drivers without actually having -+ interrupts working properly. -+ -+comment "RAM configuration" -+ -+if BRD_32MB -+ -+config RAMSIZE -+ hex "Size of RAM (in bytes)" -+ range 0x00000000 0x02000000 -+ default "0x02000000" -+ help -+ Define the size of the system RAM. If you select 0 then the -+ kernel will try to probe the RAM size at runtime. This is not -+ supported on all CPU types. -+ -+endif -+ -+if BRD_64MB -+ -+config RAMSIZE -+ hex "Size of RAM (in bytes)" -+ range 0x00000000 0x04000000 -+ default "0x04000000" -+ help -+ Define the size of the system RAM. If you select 0 then the -+ kernel will try to probe the RAM size at runtime. This is not -+ supported on all CPU types. -+ -+endif -+ -+if BRD_128MB -+ -+config RAMSIZE -+ hex "Size of RAM (in bytes)" -+ range 0x00000000 0x08000000 -+ default "0x08000000" -+ help -+ Define the size of the system RAM. If you select 0 then the -+ kernel will try to probe the RAM size at runtime. This is not -+ supported on all CPU types. -+ -+endif -+ -+config KERNELBASE -+ hex "Address of the base of kernel code" -+ default "0x40400000" -+ help -+ For the time being we are going to start the Kernel at a 4 meg offset. -+ -+comment "Build options" -+config LINKER_RELAXATION -+ bool "Linker Relaxation" -+ default y -+ help -+ Turns on linker relaxation that will produce smaller -+ faster code. Increases link time. -+ -+comment "Driver options" -+menu "PCI Bus" -+config PCI -+ bool "PCI bus" -+ default true -+ help -+ Enable/Disable PCI bus -+ source "drivers/pci/Kconfig" -+ -+ -+config PCI_DEV0_IDSEL -+ hex "slot 0 address" -+ depends on PCI -+ default "0x01000000" -+ help -+ Slot 0 address. This address should correspond to the address line -+ which the IDSEL bit for this slot is connected to. -+ -+config PCI_DEV1_IDSEL -+ hex "slot 1 address" -+ depends on PCI -+ default "0x02000000" -+ help -+ Slot 1 address. This address should correspond to the address line -+ which the IDSEL bit for this slot is connected to. -+endmenu -+# End PCI -+ -+menu "Input devices" -+config UBICOM_INPUT -+ bool "Ubicom polled GPIO input driver" -+ select INPUT -+ select INPUT_POLLDEV -+ help -+ Polling input driver, much like the GPIO input driver, except that it doesn't -+ rely on interrupts. It will report events via the input subsystem. -+ default n -+ -+config UBICOM_INPUT_I2C -+ bool "Ubicom polled GPIO input driver over I2C" -+ select INPUT -+ select INPUT_POLLDEV -+ help -+ Polling input driver, much like the PCA953x driver, it can support a variety of -+ different I2C I/O expanders. This device polls the I2C I/O expander for events -+ and reports them via the input subsystem. -+ default n -+endmenu -+# Input devices -+ -+menu "Misc devices" -+config UBICOM_HID -+ bool "Ubicom HID driver" -+ select INPUT -+ select INPUT_POLLDEV -+ select LCD_CLASS_DEVICE -+ help -+ Driver for HID chip found on some Ubicom reference designs. This chip handles -+ PWM, button input, and IR remote control. It registers as an input device and -+ a backlight device. -+ default n -+endmenu -+# Misc devices -+ -+config CMDLINE_BOOL -+ bool "Built-in kernel command line" -+ default n -+ help -+ Allow for specifying boot arguments to the kernel at -+ build time. On some systems (e.g. embedded ones), it is -+ necessary or convenient to provide some or all of the -+ kernel boot arguments with the kernel itself (that is, -+ to not rely on the boot loader to provide them.) -+ -+ To compile command line arguments into the kernel, -+ set this option to 'Y', then fill in the -+ the boot arguments in CONFIG_CMDLINE. -+ -+ Systems with fully functional boot loaders (i.e. non-embedded) -+ should leave this option set to 'N'. -+ -+config CMDLINE -+ string "Built-in kernel command string" -+ depends on CMDLINE_BOOL -+ default "" -+ help -+ Enter arguments here that should be compiled into the kernel -+ image and used at boot time. If the boot loader provides a -+ command line at boot time, it is appended to this string to -+ form the full kernel command line, when the system boots. -+ -+ However, you can use the CONFIG_CMDLINE_OVERRIDE option to -+ change this behavior. -+ -+ In most cases, the command line (whether built-in or provided -+ by the boot loader) should specify the device for the root -+ file system. -+ -+config CMDLINE_OVERRIDE -+ bool "Built-in command line overrides boot loader arguments" -+ default n -+ depends on CMDLINE_BOOL -+ help -+ Set this option to 'Y' to have the kernel ignore the boot loader -+ command line, and use ONLY the built-in command line. -+ -+ This is used to work around broken boot loaders. This should -+ be set to 'N' under normal conditions. -+ -+endmenu -+# End Processor type and features -+ -+source "arch/ubicom32/Kconfig.debug" -+ -+menu "Executable file formats" -+source "fs/Kconfig.binfmt" -+endmenu -+ -+source "init/Kconfig" -+source "kernel/Kconfig.preempt" -+source "kernel/time/Kconfig" -+source "mm/Kconfig" -+source "net/Kconfig" -+source "drivers/Kconfig" -+source "fs/Kconfig" -+source "security/Kconfig" -+source "crypto/Kconfig" -+source "lib/Kconfig" ---- /dev/null -+++ b/arch/ubicom32/Kconfig.debug -@@ -0,0 +1,117 @@ -+menu "Kernel hacking" -+ -+config TRACE_IRQFLAGS_SUPPORT -+ def_bool y -+ -+config PROTECT_KERNEL -+ default y -+ bool 'Enable Kernel range register Protection' -+ help -+ Adds code to enable/disable range registers to protect static -+ kernel code/data from userspace. Currently the ranges covered -+ do no protect kernel loadable modules or dynamically allocated -+ kernel data. -+ -+config NO_KERNEL_MSG -+ bool "Suppress Kernel BUG Messages" -+ help -+ Do not output any debug BUG messages within the kernel. -+ -+config EARLY_PRINTK -+ bool "Use the driver that you selected as console also for early printk (to debug kernel bootup)." -+ default n -+ help -+ If you want to use the serdes driver (console=ttyUS0) for -+ early printk, you must also supply an additional kernel boot -+ parameter like this: -+ -+ serdes=ioportaddr,irq,clockrate,baud -+ -+ For an IP7160RGW eval board, you could use this: -+ -+ serdes=0x2004000,61,250000000,57600 -+ -+ which will let you see early printk output at 57600 baud. -+ -+config STOP_ON_TRAP -+ bool "Enable stopping at the LDSR for all traps" -+ default n -+ help -+ Cause the LDSR to stop all threads whenever a trap is about to be serviced -+ -+config STOP_ON_BUG -+ bool "Enable stopping on failed BUG_ON()" -+ default n -+ help -+ Cause all BUG_ON failures to stop all threads -+ -+config DEBUG_IRQMEASURE -+ bool "Enable IRQ handler measurements" -+ default n -+ help -+ When enabled each IRQ's min/avg/max times will be printed. If the handler -+ re-enables interrupt, the times will show the full time including to service -+ nested interrupts. See /proc/irq_measurements. -+ -+config DEBUG_PCIMEASURE -+ bool "Enable PCI transaction measurements" -+ default n -+ help -+ When enabled the system will measure the min/avg/max timer for each PCI transactions. -+ See /proc/pci_measurements. -+ -+config ACCESS_OK_CHECKS_ENABLED -+ bool "Enable user space access checks" -+ default n -+ help -+ Enabling this check causes the kernel to verify that addresses passed -+ to the kernel by the user space code are within the processes -+ address space. On a no-mmu system, this is done by examining the -+ processes memory data structures (adversly affecting performance) but -+ ensuring that a process does not ask the kernel to violate another -+ processes address space. Sadly, the kernel uses access_ok() for -+ address that are in the kernel which results in a large volume of -+ false positives. -+ -+choice -+ prompt "Unaligned Access Support" -+ default UNALIGNED_ACCESS_ENABLED -+ help -+ Kernel / Userspace unaligned access handling. -+ -+config UNALIGNED_ACCESS_ENABLED -+ bool "Kernel and Userspace" -+ help -+ -+config UNALIGNED_ACCESS_USERSPACE_ONLY -+ bool "Userspace Only" -+ help -+ -+config UNALIGNED_ACCESS_DISABLED -+ bool "Disabled" -+ help -+ -+endchoice -+ -+config DEBUG_STACKOVERFLOW -+ bool "Check for stack overflows" -+ default n -+ depends on DEBUG_KERNEL -+ help -+ This option will cause messages to be printed if free kernel stack space -+ drops below a certain limit (THREAD_SIZE /8). -+ -+config DEBUG_STACK_USAGE -+ bool "Stack utilization instrumentation" -+ default n -+ depends on DEBUG_KERNEL -+ help -+ Enables the display of the minimum amount of free kernel stack which each -+ task has ever had available in the sysrq-T and sysrq-P debug output. -+ -+ This option will slow down process creation somewhat. -+ -+source "lib/Kconfig.debug" -+ -+endmenu -+ ---- /dev/null -+++ b/arch/ubicom32/kernel/asm-offsets.c -@@ -0,0 +1,162 @@ -+/* -+ * arch/ubicom32/kernel/asm-offsets.c -+ * Ubicom32 architecture definitions needed by assembly language modules. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * This program is used to generate definitions needed by -+ * assembly language modules. -+ * -+ * We use the technique used in the OSF Mach kernel code: -+ * generate asm statements containing #defines, -+ * compile this file to assembler, and then extract the -+ * #defines from the assembly-language output. -+ */ -+ -+#include <linux/module.h> -+#include <linux/stddef.h> -+#include <linux/sched.h> -+#include <linux/kernel_stat.h> -+#include <linux/ptrace.h> -+#include <linux/hardirq.h> -+#include <asm/bootinfo.h> -+#include <asm/irq.h> -+#include <asm/thread_info.h> -+ -+#define DEFINE(sym, val) \ -+ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) -+ -+#define BLANK() asm volatile("\n->" : : ) -+ -+int main(void) -+{ -+ /* offsets into the task struct */ -+ DEFINE(TASK_STATE, offsetof(struct task_struct, state)); -+ DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); -+ DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); -+ DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked)); -+ DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); -+ DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack)); -+ DEFINE(TASK_MM, offsetof(struct task_struct, mm)); -+ DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); -+ -+ /* offsets into the kernel_stat struct */ -+ DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs)); -+ -+ /* offsets into the irq_cpustat_t struct */ -+ DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); -+ -+ /* offsets into the thread struct */ -+ DEFINE(THREAD_D10, offsetof(struct thread_struct, d10)); -+ DEFINE(THREAD_D11, offsetof(struct thread_struct, d11)); -+ DEFINE(THREAD_D12, offsetof(struct thread_struct, d12)); -+ DEFINE(THREAD_D13, offsetof(struct thread_struct, d13)); -+ DEFINE(THREAD_A1, offsetof(struct thread_struct, a1)); -+ DEFINE(THREAD_A2, offsetof(struct thread_struct, a2)); -+ DEFINE(THREAD_A5, offsetof(struct thread_struct, a5)); -+ DEFINE(THREAD_A6, offsetof(struct thread_struct, a6)); -+ DEFINE(THREAD_SP, offsetof(struct thread_struct, sp)); -+ -+ /* offsets into the pt_regs */ -+ DEFINE(PT_D0, offsetof(struct pt_regs, dn[0])); -+ DEFINE(PT_D1, offsetof(struct pt_regs, dn[1])); -+ DEFINE(PT_D2, offsetof(struct pt_regs, dn[2])); -+ DEFINE(PT_D3, offsetof(struct pt_regs, dn[3])); -+ DEFINE(PT_D4, offsetof(struct pt_regs, dn[4])); -+ DEFINE(PT_D5, offsetof(struct pt_regs, dn[5])); -+ DEFINE(PT_D6, offsetof(struct pt_regs, dn[6])); -+ DEFINE(PT_D7, offsetof(struct pt_regs, dn[7])); -+ DEFINE(PT_D8, offsetof(struct pt_regs, dn[8])); -+ DEFINE(PT_D9, offsetof(struct pt_regs, dn[9])); -+ DEFINE(PT_D10, offsetof(struct pt_regs, dn[10])); -+ DEFINE(PT_D11, offsetof(struct pt_regs, dn[11])); -+ DEFINE(PT_D12, offsetof(struct pt_regs, dn[12])); -+ DEFINE(PT_D13, offsetof(struct pt_regs, dn[13])); -+ DEFINE(PT_D14, offsetof(struct pt_regs, dn[14])); -+ DEFINE(PT_D15, offsetof(struct pt_regs, dn[15])); -+ DEFINE(PT_A0, offsetof(struct pt_regs, an[0])); -+ DEFINE(PT_A1, offsetof(struct pt_regs, an[1])); -+ DEFINE(PT_A2, offsetof(struct pt_regs, an[2])); -+ DEFINE(PT_A3, offsetof(struct pt_regs, an[3])); -+ DEFINE(PT_A4, offsetof(struct pt_regs, an[4])); -+ DEFINE(PT_A5, offsetof(struct pt_regs, an[5])); -+ DEFINE(PT_A6, offsetof(struct pt_regs, an[6])); -+ DEFINE(PT_A7, offsetof(struct pt_regs, an[7])); -+ DEFINE(PT_SP, offsetof(struct pt_regs, an[7])); -+ -+ DEFINE(PT_ACC0HI, offsetof(struct pt_regs, acc0[0])); -+ DEFINE(PT_ACC0LO, offsetof(struct pt_regs, acc0[1])); -+ DEFINE(PT_MAC_RC16, offsetof(struct pt_regs, mac_rc16)); -+ -+ DEFINE(PT_ACC1HI, offsetof(struct pt_regs, acc1[0])); -+ DEFINE(PT_ACC1LO, offsetof(struct pt_regs, acc1[1])); -+ -+ DEFINE(PT_SOURCE3, offsetof(struct pt_regs, source3)); -+ DEFINE(PT_INST_CNT, offsetof(struct pt_regs, inst_cnt)); -+ DEFINE(PT_CSR, offsetof(struct pt_regs, csr)); -+ DEFINE(PT_DUMMY_UNUSED, offsetof(struct pt_regs, dummy_unused)); -+ -+ DEFINE(PT_INT_MASK0, offsetof(struct pt_regs, int_mask0)); -+ DEFINE(PT_INT_MASK1, offsetof(struct pt_regs, int_mask1)); -+ -+ DEFINE(PT_PC, offsetof(struct pt_regs, pc)); -+ -+ DEFINE(PT_TRAP_CAUSE, offsetof(struct pt_regs, trap_cause)); -+ -+ DEFINE(PT_SIZE, sizeof(struct pt_regs)); -+ -+ DEFINE(PT_FRAME_TYPE, offsetof(struct pt_regs, frame_type)); -+ -+ DEFINE(PT_ORIGINAL_D0, offsetof(struct pt_regs, original_dn_0)); -+ DEFINE(PT_PREVIOUS_PC, offsetof(struct pt_regs, previous_pc)); -+ -+ /* offsets into the kernel_stat struct */ -+ DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs)); -+ -+ /* signal defines */ -+ DEFINE(SIGSEGV, SIGSEGV); -+ //DEFINE(SEGV_MAPERR, SEGV_MAPERR); -+ DEFINE(SIGTRAP, SIGTRAP); -+ //DEFINE(TRAP_TRACE, TRAP_TRACE); -+ -+ DEFINE(PT_PTRACED, PT_PTRACED); -+ DEFINE(PT_DTRACE, PT_DTRACE); -+ -+ DEFINE(ASM_THREAD_SIZE, THREAD_SIZE); -+ -+ /* Offsets in thread_info structure */ -+ DEFINE(TI_TASK, offsetof(struct thread_info, task)); -+ DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain)); -+ DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); -+ DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count)); -+ DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); -+ DEFINE(TI_INTR_NESTING, offsetof(struct thread_info, interrupt_nesting)); -+ DEFINE(ASM_TIF_NEED_RESCHED, TIF_NEED_RESCHED); -+ DEFINE(ASM_TIF_SYSCALL_TRACE, TIF_SYSCALL_TRACE); -+ DEFINE(ASM_TIF_SIGPENDING, TIF_SIGPENDING); -+ -+ DEFINE(ASM_RAM_END, (CONFIG_RAMBASE + CONFIG_RAMSIZE)); -+ return 0; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/devtree.c -@@ -0,0 +1,173 @@ -+/* -+ * arch/ubicom32/kernel/devtree.c -+ * Ubicom32 architecture device tree implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/string.h> -+#include <linux/errno.h> -+#include <asm/devtree.h> -+ -+/* -+ * The device tree. -+ */ -+struct devtree_node *devtree; -+ -+/* -+ * devtree_print() -+ * Print the device tree. -+ */ -+void devtree_print(void) -+{ -+ struct devtree_node *p = devtree; -+ printk(KERN_INFO "Device Tree:\n"); -+ while (p) { -+ if (p->magic != DEVTREE_NODE_MAGIC) { -+ printk(KERN_EMERG -+ "device tree has improper node: %p\n", p); -+ return; -+ } -+ printk(KERN_INFO "\t%p: sendirq=%03d, recvirq=%03d, " -+ " name=%s\n", p, p->sendirq, p->recvirq, p->name); -+ p = p->next; -+ } -+} -+EXPORT_SYMBOL(devtree_print); -+ -+/* -+ * devtree_irq() -+ * Return the IRQ(s) associated with devtree node. -+ */ -+int devtree_irq(struct devtree_node *dn, -+ unsigned char *sendirq, -+ unsigned char *recvirq) -+{ -+ if (dn->magic != DEVTREE_NODE_MAGIC) { -+ printk(KERN_EMERG "improper node: %p\n", dn); -+ if (sendirq) { -+ *sendirq = DEVTREE_IRQ_NONE; -+ } -+ if (recvirq) { -+ *recvirq = DEVTREE_IRQ_NONE; -+ } -+ return -EFAULT; -+ } -+ -+ /* -+ * Copy the devtree irq(s) to the output parameters. -+ */ -+ if (sendirq) { -+ *sendirq = dn->sendirq; -+ } -+ if (recvirq) { -+ *recvirq = dn->recvirq; -+ } -+ return 0; -+} -+EXPORT_SYMBOL(devtree_irq); -+ -+/* -+ * devtree_find_next() -+ * Provide an iterator for walking the device tree. -+ */ -+struct devtree_node *devtree_find_next(struct devtree_node **cur) -+{ -+ struct devtree_node *p = *cur; -+ if (!p) { -+ *cur = devtree; -+ return devtree; -+ } -+ p = p->next; -+ *cur = p; -+ return p; -+} -+ -+/* -+ * devtree_find_by_irq() -+ * Return the node associated with a given irq. -+ */ -+struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq) -+{ -+ struct devtree_node *p = devtree; -+ -+ if (sendirq == recvirq) { -+ printk(KERN_EMERG "identical request makes no sense sendirq = " -+ "%d, recvirq= %d\n", sendirq, recvirq); -+ return NULL; -+ } -+ -+ while (p) { -+ if (p->magic != DEVTREE_NODE_MAGIC) { -+ printk(KERN_EMERG -+ "device tree has improper node: %p\n", p); -+ return NULL; -+ } -+ -+ /* -+ * See if we can find a match on the IRQ(s) specified. -+ */ -+ if ((sendirq == p->sendirq) && (recvirq == p->recvirq)) { -+ return p; -+ } -+ -+ if ((sendirq == DEVTREE_IRQ_DONTCARE) && -+ (p->recvirq == recvirq)) { -+ return p; -+ } -+ -+ if ((recvirq == DEVTREE_IRQ_DONTCARE) && -+ (p->sendirq == sendirq)) { -+ return p; -+ } -+ -+ p = p->next; -+ } -+ return NULL; -+} -+EXPORT_SYMBOL(devtree_find_by_irq); -+ -+/* -+ * devtree_find_node() -+ * Find a node in the device tree by name. -+ */ -+struct devtree_node *devtree_find_node(const char *str) -+{ -+ struct devtree_node *p = devtree; -+ while (p) { -+ if (p->magic != DEVTREE_NODE_MAGIC) { -+ printk(KERN_EMERG -+ "device tree has improper node: %p\n", p); -+ return NULL; -+ } -+ if (strcmp(p->name, str) == 0) { -+ return p; -+ } -+ p = p->next; -+ } -+ return NULL; -+} -+EXPORT_SYMBOL(devtree_find_node); ---- /dev/null -+++ b/arch/ubicom32/kernel/dma.c -@@ -0,0 +1,60 @@ -+/* -+ * arch/ubicom32/kernel/dma.c -+ * Ubicom32 architecture dynamic DMA mapping support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * We never have any address translations to worry about, so this -+ * is just alloc/free. -+ */ -+ -+#include <linux/types.h> -+#include <linux/mm.h> -+#include <linux/string.h> -+#include <linux/device.h> -+#include <linux/io.h> -+ -+void *dma_alloc_coherent(struct device *dev, size_t size, -+ dma_addr_t *dma_handle, int gfp) -+{ -+ void *ret; -+ /* ignore region specifiers */ -+ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); -+ -+ if (dev == NULL || (*dev->dma_mask < 0xffffffff)) -+ gfp |= GFP_DMA; -+ ret = (void *)__get_free_pages(gfp, get_order(size)); -+ -+ if (ret != NULL) { -+ memset(ret, 0, size); -+ *dma_handle = virt_to_phys(ret); -+ } -+ return ret; -+} -+ -+void dma_free_coherent(struct device *dev, size_t size, -+ void *vaddr, dma_addr_t dma_handle) -+{ -+ free_pages((unsigned long)vaddr, get_order(size)); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/flat.c -@@ -0,0 +1,206 @@ -+/* -+ * arch/ubicom32/kernel/flat.c -+ * Ubicom32 architecture flat executable format support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/flat.h> -+ -+unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp, -+ u32_t relval, -+ u32_t flags, -+ unsigned long *persistent) -+{ -+ u32_t relval_reloc_type = relval >> 27; -+ u32_t insn = *rp; -+ -+ if (*persistent) { -+ /* -+ * relval holds the relocation that has to be adjusted. -+ */ -+ if (relval == 0) { -+ *persistent = 0; -+ } -+ -+ return relval; -+ } -+ -+ if (relval_reloc_type == R_UBICOM32_32) { -+ /* -+ * insn holds the relocation -+ */ -+ return insn; -+ } -+ -+ /* -+ * We don't know this one. -+ */ -+ return 0; -+} -+ -+void ubicom32_flat_put_addr_at_rp(unsigned long *rp, -+ u32_t val, -+ u32_t relval, -+ unsigned long *persistent) -+{ -+ u32_t reloc_type = (relval >> 27) & 0x1f; -+ u32_t insn = *rp; -+ -+ /* -+ * If persistent is set then it contains the relocation type. -+ */ -+ if (*persistent) { -+ /* -+ * If persistent is set then it contains the relocation type. -+ */ -+ reloc_type = (*persistent >> 27) & 0x1f; -+ } -+ -+ switch (reloc_type) { -+ case R_UBICOM32_32: -+ /* -+ * Store the 32 bits as is. -+ */ -+ *rp = val; -+ break; -+ case R_UBICOM32_HI24: -+ { -+ /* -+ * 24 bit relocation that is part of the MOVEAI -+ * instruction. The 24 bits come from bits 7 - 30 of the -+ * relocation. The 24 bits eventually get split into 2 -+ * fields in the instruction encoding. -+ * -+ * - Bits 7 - 27 of the relocation are encoded into bits -+ * 0 - 20 of the instruction. -+ * -+ * - Bits 28 - 30 of the relocation are encoded into bit -+ * 24 - 26 of the instruction. -+ */ -+ u32_t mask = 0x1fffff | (0x7 << 24); -+ u32_t valid24bits = (val >> 7) & 0xffffff; -+ u32_t bot_21 = valid24bits & 0x1fffff; -+ u32_t upper_3_bits = ((valid24bits & 0xe00000) << 3); -+ insn &= ~mask; -+ -+ insn |= bot_21; -+ insn |= upper_3_bits; -+ *rp = insn; -+ } -+ break; -+ case R_UBICOM32_LO7_S: -+ case R_UBICOM32_LO7_2_S: -+ case R_UBICOM32_LO7_4_S: -+ { -+ /* -+ * Bits 0 - 6 of the relocation are encoded into the -+ * 7bit unsigned immediate fields of the SOURCE-1 field -+ * of the instruction. The immediate value is left -+ * shifted by (0, 1, 2) based on the operand size. -+ */ -+ u32_t mask = 0x1f | (0x3 << 8); -+ u32_t bottom, top; -+ val &= 0x7f; -+ if (reloc_type == R_UBICOM32_LO7_2_S) { -+ val >>= 1; -+ } else if (reloc_type == R_UBICOM32_LO7_4_S) { -+ val >>= 2; -+ } -+ -+ bottom = val & 0x1f; -+ top = val >> 5; -+ insn &= ~mask; -+ insn |= bottom; -+ insn |= (top << 8); -+ BUG_ON(*rp != insn); -+ *rp = insn; -+ break; -+ } -+ case R_UBICOM32_LO7_D: -+ case R_UBICOM32_LO7_2_D: -+ case R_UBICOM32_LO7_4_D: -+ { -+ /* -+ * Bits 0 - 6 of the relocation are encoded into the -+ * 7bit unsigned immediate fields of the DESTINATION -+ * field of the instruction. The immediate value is -+ * left shifted by (0, 1, 2) based on the operand size. -+ */ -+ u32_t mask = (0x1f | (0x3 << 8)) << 16; -+ u32_t bottom, top; -+ val &= 0x7f; -+ if (reloc_type == R_UBICOM32_LO7_2_D) { -+ val >>= 1; -+ } else if (reloc_type == R_UBICOM32_LO7_4_D) { -+ val >>= 2; -+ } -+ bottom = (val & 0x1f) << 16; -+ top = (val >> 5) << 16; -+ insn &= ~mask; -+ insn |= bottom; -+ insn |= (top << 8); -+ BUG_ON(*rp != insn); -+ *rp = insn; -+ break; -+ } -+ case R_UBICOM32_LO7_CALLI: -+ case R_UBICOM32_LO16_CALLI: -+ { -+ /* -+ * Extract the offset for a CALLI instruction. The -+ * offsets can be either 7 bits or 18 bits. Since all -+ * instructions in ubicom32 architecture are at work -+ * aligned addresses the truncated offset is right -+ * shifted by 2 before being encoded in the instruction. -+ */ -+ if (reloc_type == R_UBICOM32_LO7_CALLI) { -+ val &= 0x7f; -+ } else { -+ val &= 0x3ffff; -+ } -+ -+ val >>= 2; -+ -+ insn &= ~0x071f071f; -+ insn |= (val & 0x1f) << 0; -+ val >>= 5; -+ insn |= (val & 0x07) << 8; -+ val >>= 3; -+ insn |= (val & 0x1f) << 16; -+ val >>= 5; -+ insn |= (val & 0x07) << 24; -+ if (reloc_type == R_UBICOM32_LO7_CALLI) { -+ BUG_ON(*rp != insn); -+ } -+ *rp = insn; -+ } -+ break; -+ } -+ -+ if (*persistent) { -+ *persistent = 0; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/head.S -@@ -0,0 +1,247 @@ -+/* -+ * arch/ubicom32/kernel/head.S -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/sys.h> -+#include <linux/linkage.h> -+#include <asm/asm-offsets.h> -+#include <asm/page_offset.h> -+#define __ASM__ -+#include <asm/ip5000.h> -+ -+ -+#define SRC_AN A3 -+#define DST_AN A4 -+ -+#define PARAM_DN D0 -+#define TMP_DN D15 -+#define TMP2_DN D14 -+ -+/* -+ * The following code is placed at the start of the Linux section of memory. -+ * This is the primary entry point for Linux. -+ * -+ * However, we also want the syscall entry/exit code to be at a fixed address. -+ * So we take the primary entry point and reserve 16 bytes. That address is -+ * where the system_call entry point exists. This 16 bytes basically allows -+ * us to jump around the system_call entry point code to the actual startup -+ * code. -+ * -+ * Linux Memory Map (see vlinux.lds.S): -+ * 0x40400000 - Primary Entry Point for Linux (jump around code below). -+ * 0x40400010 - Syscall Entry Point. -+ */ -+ -+ .sect .skip_syscall, "ax", @progbits -+ .global __skip_syscall_section -+__skip_syscall_section: -+ moveai A3, #%hi(_start) -+ lea.1 A3, %lo(_start)(A3) -+ ret A3 -+/* -+ * __os_node_offset contains the offset from KERNELBASE to the os_node, it is -+ * not intended to be used by anything except the boot code. -+ */ -+__os_node_offset: -+.long (_os_node - CONFIG_KERNELBASE) -+ -+.text -+.global _start -+ -+/* -+ * start() -+ * This is the start of the Linux kernel. -+ */ -+_start: -+ move.4 SCRATCHPAD1, #0 -+ -+ -+/* -+ * Setup the range registers... the loader has setup a few, but we will go ahead -+ * and correct them for our own limits. Note that once set these are never -+ * changed again. The ranges are as follows -+ * -+ * D_RANGE0 - io block (set up by loaded) -+ * -+ * I_RANGE0 and D_RANGE1 - kernel/ultra loader address space bottom of ocm-> top -+ * of ram typically 0x3ffc0000 - 0x440000000 -+ * I_RANGE1 - kernel / userspace transition area (aka syscalls, context switches) -+ * typically 0x40400000 - ~0x40400400 -+ * I_RANGE2 / D_RANGE2 - slab area -+ * typically 0x40A00000 - ~0x44000000 -+ * -+ * I_RANGE4, D_RANGE3, D_RANGE3 - unused. -+ */ -+ moveai SRC_AN, #%hi(PAGE_OFFSET_RAW) -+ lea.4 SRC_AN, %lo(PAGE_OFFSET_RAW)(SRC_AN) -+ move.4 D_RANGE1_LO, SRC_AN -+ move.4 I_RANGE0_LO, SRC_AN -+ -+; don't try to calculate I_RANGE_HI, see below -+; moveai SRC_AN, #%hi(___init_end-4) -+; lea.4 SRC_AN, %lo(___init_end-4)(SRC_AN) -+; move.4 I_RANGE0_HI, SRC_AN -+ -+ moveai SRC_AN, #%hi(CONFIG_RAMBASE+CONFIG_RAMSIZE-4) -+ lea.4 SRC_AN, %lo(CONFIG_RAMBASE+CONFIG_RAMSIZE-4)(SRC_AN) -+ move.4 D_RANGE1_HI, SRC_AN -+ -+; for now allow the whole ram to be executable as well so we don't run into problems -+; once we load user more code. -+ move.4 I_RANGE0_HI, SRC_AN -+ -+#ifdef CONFIG_PROTECT_KERNEL -+; when kernel protection is enabled, we only open up syscall and non kernel text -+; for userspace apps, for now only irange registers registers 1 and 2 are used for userspace. -+ -+ ;; syscall range -+ moveai SRC_AN, #%hi(_begin) -+ lea.4 SRC_AN, %lo(_begin)(SRC_AN) -+ move.4 I_RANGE1_LO, SRC_AN -+ moveai SRC_AN, #%hi(__fixed_text_end) -+ lea.4 SRC_AN, %lo(__fixed_text_end)(SRC_AN) -+ move.4 I_RANGE1_HI, SRC_AN -+ -+ ;; slab instructions -+ moveai SRC_AN, #%hi(_edata) -+ lea.4 SRC_AN, %lo(_edata)(SRC_AN) -+ move.4 I_RANGE2_LO, SRC_AN -+ ;; End of DDR is already in range0 hi so just copy it. -+ move.4 I_RANGE2_HI, I_RANGE0_HI -+ -+ ;; slab data (same as slab instructions but starting a little earlier). -+ moveai SRC_AN, #%hi(_data_protection_end) -+ lea.4 SRC_AN, %lo(_data_protection_end)(SRC_AN) -+ move.4 D_RANGE2_LO, SRC_AN -+ move.4 D_RANGE2_HI, I_RANGE0_HI -+ -+;; enable ranges -+ ;; skip I_RANGE0_EN -+ move.4 I_RANGE1_EN, #-1 -+ move.4 I_RANGE2_EN, #-1 -+ move.4 I_RANGE3_EN, #0 -+ -+ ;; skip D_RANGE0_EN or D_RANGE1_EN -+ move.4 D_RANGE2_EN, #-1 -+ move.4 D_RANGE3_EN, #0 -+ move.4 D_RANGE4_EN, #0 -+#endif -+ -+; -+; If __ocm_free_begin is smaller than __ocm_free_end the -+; setup OCM text and data ram banks properly -+; -+ moveai DST_AN, #%hi(__ocm_free_begin) -+ lea.4 TMP_DN, %lo(__ocm_free_begin)(DST_AN) -+ moveai DST_AN, #%hi(__ocm_free_end) -+ lea.4 TMP2_DN, %lo(__ocm_free_end)(DST_AN) -+ sub.4 #0, TMP2_DN, TMP_DN -+ jmple.f 2f -+ moveai DST_AN, #%hi(__data_begin) -+ lea.4 TMP_DN, %lo(__data_begin)(DST_AN) -+ moveai DST_AN, #%hi(OCMSTART) -+ lea.4 TMP2_DN, %lo(OCMSTART)(DST_AN) -+ sub.4 TMP_DN, TMP_DN, TMP2_DN -+ lsr.4 TMP_DN, TMP_DN, #15 -+ lsl.4 TMP_DN, #1, TMP_DN -+ moveai DST_AN, #%hi(OCMC_BASE) -+ add.4 OCMC_BANK_MASK(DST_AN), #-1, TMP_DN -+ pipe_flush 0 -+2: -+; -+; Load .ocm_text -+; -+ moveai DST_AN, #%hi(__ocm_text_run_end) -+ lea.4 TMP_DN, %lo(__ocm_text_run_end)(DST_AN) -+ moveai DST_AN, #%hi(__ocm_text_run_begin) -+ lea.4 DST_AN, %lo(__ocm_text_run_begin)(DST_AN) -+ moveai SRC_AN, #%hi(__ocm_text_load_begin) -+ lea.4 SRC_AN, %lo(__ocm_text_load_begin)(SRC_AN) -+ jmpt.t 2f -+ -+1: move.4 (DST_AN)4++, (SRC_AN)4++ -+ -+2: sub.4 #0, DST_AN, TMP_DN -+ jmpne.t 1b -+ -+; -+; Load .ocm_data -+; -+ moveai DST_AN, #%hi(__ocm_data_run_end) -+ lea.4 TMP_DN, %lo(__ocm_data_run_end)(DST_AN) -+ moveai DST_AN, #%hi(__ocm_data_run_begin) -+ lea.4 DST_AN, %lo(__ocm_data_run_begin)(DST_AN) -+ moveai SRC_AN, #%hi(__ocm_data_load_begin) -+ lea.4 SRC_AN, %lo(__ocm_data_load_begin)(SRC_AN) -+ jmpt.t 2f -+ -+1: move.4 (DST_AN)4++, (SRC_AN)4++ -+ -+2: sub.4 #0, DST_AN, TMP_DN -+ jmpne.t 1b -+ -+; Clear .bss -+; -+ moveai SRC_AN, #%hi(_ebss) -+ lea.4 TMP_DN, %lo(_ebss)(SRC_AN) -+ moveai DST_AN, #%hi(_sbss) -+ lea.4 DST_AN, %lo(_sbss)(DST_AN) -+ jmpt.t 2f -+ -+1: move.4 (DST_AN)4++, #0 -+ -+2: sub.4 #0, DST_AN, TMP_DN -+ jmpne.t 1b -+ -+; save our parameter to devtree (after clearing .bss) -+ moveai DST_AN, #%hi(devtree) -+ lea.4 DST_AN, %lo(devtree)(DST_AN) -+ move.4 (DST_AN), PARAM_DN -+ -+ moveai sp, #%hi(init_thread_union) -+ lea.4 sp, %lo(init_thread_union)(sp) -+ movei TMP_DN, #ASM_THREAD_SIZE -+ add.4 sp, sp, TMP_DN -+ move.4 -4(sp)++, #0 ; nesting level = 0 -+ move.4 -4(sp)++, #1 ; KERNEL_THREAD -+ -+;; ip3k-elf-gdb backend now sets scratchpad3 to 1 when either continue -+;; or single step commands are issued. scratchpad3 is set to 0 when the -+;; debugger detaches from the board. -+ move.4 TMP_DN, scratchpad3 -+ lsl.4 TMP_DN, TMP_DN, #0x0 -+ jmpeq.f _jump_to_start_kernel -+_ok_to_set_break_points_in_linux: -+;; THREAD_STALL -+ move.4 mt_dbg_active_clr,#-1 -+;; stalling the threads isn't instantaneous.. need to flush the pipe. -+ pipe_flush 0 -+ pipe_flush 0 -+ -+_jump_to_start_kernel: -+ moveai SRC_AN, #%hi(start_kernel) -+ lea.4 SRC_AN, %lo(start_kernel)(SRC_AN) -+ ret SRC_AN ---- /dev/null -+++ b/arch/ubicom32/kernel/init_task.c -@@ -0,0 +1,62 @@ -+/* -+ * arch/ubicom32/kernel/init_task.c -+ * Ubicom32 architecture task initialization implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/mm.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/init.h> -+#include <linux/init_task.h> -+#include <linux/fs.h> -+#include <linux/mqueue.h> -+#include <linux/uaccess.h> -+#include <asm/pgtable.h> -+ -+static struct fs_struct init_fs = INIT_FS; -+static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -+struct mm_struct init_mm = INIT_MM(init_mm); -+EXPORT_SYMBOL(init_mm); -+ -+/* -+ * Initial task structure. -+ * -+ * All other task structs will be allocated on slabs in fork.c -+ */ -+struct task_struct init_task = INIT_TASK(init_task); -+ -+EXPORT_SYMBOL(init_task); -+ -+/* -+ * Initial thread structure. -+ * -+ * We need to make sure that this is 8192-byte aligned due to the -+ * way process stacks are handled. This is done by having a special -+ * "init_task" linker map entry.. -+ */ -+union thread_union init_thread_union -+ __attribute__((__section__(".data.init_task"))) = -+ { INIT_THREAD_INFO(init_task) }; ---- /dev/null -+++ b/arch/ubicom32/kernel/irq.c -@@ -0,0 +1,596 @@ -+/* -+ * arch/ubicom32/kernel/irq.c -+ * Ubicom32 architecture IRQ support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/types.h> -+#include <linux/irq.h> -+#include <linux/init.h> -+#include <linux/kernel.h> -+#include <linux/kernel_stat.h> -+#include <linux/module.h> -+#include <linux/seq_file.h> -+#include <linux/proc_fs.h> -+#include <asm/system.h> -+#include <asm/traps.h> -+#include <asm/ldsr.h> -+#include <asm/ip5000.h> -+#include <asm/machdep.h> -+#include <asm/asm-offsets.h> -+#include <asm/thread.h> -+#include <asm/devtree.h> -+ -+unsigned int irq_soft_avail; -+static struct irqaction ubicom32_reserve_action[NR_IRQS]; -+ -+#if !defined(CONFIG_DEBUG_IRQMEASURE) -+#define IRQ_DECLARE_MEASUREMENT -+#define IRQ_MEASUREMENT_START() -+#define IRQ_MEASUREMENT_END(irq) -+#else -+#define IRQ_DECLARE_MEASUREMENT \ -+ int __diff; \ -+ unsigned int __tstart; -+ -+#define IRQ_MEASUREMENT_START() \ -+ __tstart = UBICOM32_IO_TIMER->sysval; -+ -+#define IRQ_MEASUREMENT_END(irq) \ -+ __diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \ -+ irq_measurement_update((irq), __diff); -+ -+/* -+ * We keep track of the time spent in both irq_enter() -+ * and irq_exit(). -+ */ -+#define IRQ_WEIGHT 32 -+ -+struct irq_measurement { -+ volatile unsigned int min; -+ volatile unsigned int avg; -+ volatile unsigned int max; -+}; -+ -+static DEFINE_SPINLOCK(irq_measurement_lock); -+ -+/* -+ * Add 1 in for softirq (irq_exit()); -+ */ -+static struct irq_measurement irq_measurements[NR_IRQS + 1]; -+ -+/* -+ * irq_measurement_update() -+ * Update an entry in the measurement array for this irq. -+ */ -+static void irq_measurement_update(int irq, int sample) -+{ -+ struct irq_measurement *im = &irq_measurements[irq]; -+ spin_lock(&irq_measurement_lock); -+ if ((im->min == 0) || (im->min > sample)) { -+ im->min = sample; -+ } -+ if (im->max < sample) { -+ im->max = sample; -+ } -+ im->avg = ((im->avg * (IRQ_WEIGHT - 1)) + sample) / IRQ_WEIGHT; -+ spin_unlock(&irq_measurement_lock); -+} -+#endif -+ -+/* -+ * irq_kernel_stack_check() -+ * See if the kernel stack is within STACK_WARN of the end. -+ */ -+static void irq_kernel_stack_check(int irq, struct pt_regs *regs) -+{ -+#ifdef CONFIG_DEBUG_STACKOVERFLOW -+ unsigned long sp; -+ -+ /* -+ * Make sure that we are not close to the top of the stack and thus -+ * can not really service this interrupt. -+ */ -+ asm volatile ( -+ "and.4 %0, SP, %1 \n\t" -+ : "=d" (sp) -+ : "d" (THREAD_SIZE - 1) -+ : "cc" -+ ); -+ -+ if (sp < (sizeof(struct thread_info) + STACK_WARN)) { -+ printk(KERN_WARNING -+ "cpu[%d]: possible overflow detected sp remain: %p, " -+ "irq: %d, regs: %p\n", -+ thread_get_self(), (void *)sp, irq, regs); -+ dump_stack(); -+ } -+ -+ if (sp < (sizeof(struct thread_info) + 16)) { -+ THREAD_STALL; -+ } -+#endif -+} -+ -+/* -+ * irq_get_lsb() -+ * Get the LSB set in value -+ */ -+static int irq_get_lsb(unsigned int value) -+{ -+ static unsigned char irq_bits[8] = { -+ 3, 0, 1, 0, 2, 0, 1, 0 -+ }; -+ u32_t nextbit = 0; -+ -+ value = (value >> nextbit) | (value << ((sizeof(value) * 8) - nextbit)); -+ -+ /* -+ * It's unlikely that we find that we execute the body of this while -+ * loop. 50% of the time we won't take this at all and then of the -+ * cases where we do about 50% of those we only execute once. -+ */ -+ if (!(value & 0xffff)) { -+ nextbit += 0x10; -+ value >>= 16; -+ } -+ -+ if (!(value & 0xff)) { -+ nextbit += 0x08; -+ value >>= 8; -+ } -+ -+ if (!(value & 0xf)) { -+ nextbit += 0x04; -+ value >>= 4; -+ } -+ -+ nextbit += irq_bits[value & 0x7]; -+ if (nextbit > 63) { -+ panic("nextbit out of range: %d\n", nextbit); -+ } -+ return nextbit; -+} -+ -+/* -+ * ubicom32_reserve_handler() -+ * Bogus handler associated with pre-reserved IRQ(s). -+ */ -+static irqreturn_t ubicom32_reserve_handler(int irq, void *dev_id) -+{ -+ BUG(); -+ return IRQ_HANDLED; -+} -+ -+/* -+ * __irq_disable_vector() -+ * Disable the interrupt by clearing the appropriate bit in the -+ * LDSR Mask Register. -+ */ -+static void __irq_disable_vector(unsigned int irq) -+{ -+ ldsr_disable_vector(irq); -+} -+ -+/* -+ * __irq_ack_vector() -+ * Acknowledge the specific interrupt by clearing the associate bit in -+ * hardware -+ */ -+static void __irq_ack_vector(unsigned int irq) -+{ -+ if (irq < 32) { -+ asm volatile ("move.4 INT_CLR0, %0" : : "d" (1 << irq)); -+ } else { -+ asm volatile ("move.4 INT_CLR1, %0" : : "d" (1 << (irq - 32))); -+ } -+} -+ -+/* -+ * __irq_enable_vector() -+ * Clean and then enable the interrupt by setting the appropriate bit in -+ * the LDSR Mask Register. -+ */ -+static void __irq_enable_vector(unsigned int irq) -+{ -+ /* -+ * Acknowledge, really clear the vector. -+ */ -+ __irq_ack_vector(irq); -+ ldsr_enable_vector(irq); -+} -+ -+/* -+ * __irq_mask_vector() -+ */ -+static void __irq_mask_vector(unsigned int irq) -+{ -+ ldsr_mask_vector(irq); -+} -+ -+/* -+ * __irq_unmask_vector() -+ */ -+static void __irq_unmask_vector(unsigned int irq) -+{ -+ ldsr_unmask_vector(irq); -+} -+ -+/* -+ * __irq_end_vector() -+ * Called once an interrupt is completed (reset the LDSR mask). -+ */ -+static void __irq_end_vector(unsigned int irq) -+{ -+ ldsr_unmask_vector(irq); -+} -+ -+#if defined(CONFIG_SMP) -+/* -+ * __irq_set_affinity() -+ * Set the cpu affinity for this interrupt. -+ */ -+static void __irq_set_affinity(unsigned int irq, cpumask_t dest) -+{ -+ smp_set_affinity(irq, dest); -+ irq_desc[irq].affinity = dest; -+} -+#endif -+ -+/* -+ * On-Chip Generic Interrupt function handling. -+ */ -+static struct irq_chip ubicom32_irq_chip = { -+ .name = "Ubicom32", -+ .startup = NULL, -+ .shutdown = NULL, -+ .enable = __irq_enable_vector, -+ .disable = __irq_disable_vector, -+ .ack = __irq_ack_vector, -+ .mask = __irq_mask_vector, -+ .unmask = __irq_unmask_vector, -+ .end = __irq_end_vector, -+#if defined(CONFIG_SMP) -+ .set_affinity = __irq_set_affinity, -+#endif -+}; -+ -+/* -+ * do_IRQ() -+ * Primary interface for handling IRQ() requests. -+ */ -+asmlinkage void do_IRQ(int irq, struct pt_regs *regs) -+{ -+ struct pt_regs *oldregs; -+ struct thread_info *ti; -+ unsigned long sp; -+ -+ IRQ_DECLARE_MEASUREMENT; -+ -+ oldregs = set_irq_regs(regs); -+ -+ /* -+ * Before we call the handler and potentially enable -+ * interrupts, track the nesting level. -+ */ -+ asm volatile ( -+ "and.4 %0, SP, %1 \n\t" -+ : "=d" (sp) -+ : "d" (~(THREAD_SIZE - 1)) -+ : "cc" -+ ); -+ ti = (struct thread_info *)sp; -+ ti->interrupt_nesting++; -+ -+ /* -+ * Check for possible stack overflow on the kernel stack. -+ */ -+ irq_kernel_stack_check(irq, regs); -+ -+ /* -+ * Execute the IRQ handler and any pending SoftIRQ requests. -+ */ -+ BUG_ON(!irqs_disabled()); -+ irq_enter(); -+ -+ BUG_ON(!irqs_disabled()); -+ IRQ_MEASUREMENT_START(); -+ __do_IRQ(irq); -+ IRQ_MEASUREMENT_END(irq); -+ BUG_ON(!irqs_disabled()); -+ -+ IRQ_MEASUREMENT_START(); -+ irq_exit(); -+ IRQ_MEASUREMENT_END(NR_IRQS); -+ BUG_ON(!irqs_disabled()); -+ -+ set_irq_regs(oldregs); -+ ti->interrupt_nesting--; -+} -+ -+/* -+ * irq_soft_alloc() -+ * Allocate a soft IRQ. -+ */ -+int irq_soft_alloc(unsigned int *soft) -+{ -+ if (irq_soft_avail == 0) { -+ printk(KERN_NOTICE "no soft irqs to allocate\n"); -+ return -EFAULT; -+ } -+ -+ *soft = irq_get_lsb(irq_soft_avail); -+ irq_soft_avail &= ~(1 << *soft); -+ return 0; -+} -+ -+/* -+ * ack_bad_irq() -+ * Called to handle an bad irq request. -+ */ -+void ack_bad_irq(unsigned int irq) -+{ -+ printk(KERN_ERR "IRQ: unexpected irq=%d\n", irq); -+ __irq_end_vector(irq); -+} -+ -+/* -+ * show_interrupts() -+ * Return a string that displays the state of each of the interrupts. -+ */ -+int show_interrupts(struct seq_file *p, void *v) -+{ -+ struct irqaction *ap; -+ int irq = *((loff_t *) v); -+ int j; -+ -+ if (irq >= NR_IRQS) { -+ return 0; -+ } -+ -+ if (irq == 0) { -+ seq_puts(p, " "); -+ for_each_online_cpu(j) { -+ seq_printf(p, "CPU%d ", j); -+ } -+ seq_putc(p, '\n'); -+ } -+ -+ ap = irq_desc[irq].action; -+ if (ap) { -+ seq_printf(p, "%3d: ", irq); -+ for_each_online_cpu(j) { -+ seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j)); -+ } -+ seq_printf(p, "%14s ", irq_desc[irq].chip->name); -+ seq_printf(p, "%s", ap->name); -+ for (ap = ap->next; ap; ap = ap->next) { -+ seq_printf(p, ", %s", ap->name); -+ } -+ seq_putc(p, '\n'); -+ } -+ return 0; -+} -+ -+#if defined(CONFIG_DEBUG_IRQMEASURE) -+static unsigned int irq_cycles_to_micro(unsigned int cycles, unsigned int frequency) -+{ -+ unsigned int micro = (cycles / (frequency / 1000000)); -+ return micro; -+} -+ -+/* -+ * irq_measurement_show() -+ * Print out the min, avg, max values for each IRQ -+ * -+ * By request, the max value is reset after each dump. -+ */ -+static int irq_measurement_show(struct seq_file *p, void *v) -+{ -+ struct irqaction *ap; -+ unsigned int freq = processor_frequency(); -+ int irq = *((loff_t *) v); -+ -+ -+ if (irq == 0) { -+ seq_puts(p, "\tmin\tavg\tmax\t(micro-seconds)\n"); -+ } -+ -+ if (irq > NR_IRQS) { -+ return 0; -+ } -+ -+ if (irq == NR_IRQS) { -+ unsigned int min, avg, max; -+ spin_lock(&irq_measurement_lock); -+ min = irq_cycles_to_micro(irq_measurements[irq].min, freq); -+ avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq); -+ max = irq_cycles_to_micro(irq_measurements[irq].max, freq); -+ irq_measurements[irq].max = 0; -+ spin_unlock(&irq_measurement_lock); -+ seq_printf(p, " \t%u\t%u\t%u\tsoftirq\n", min, avg, max); -+ return 0; -+ } -+ -+ ap = irq_desc[irq].action; -+ if (ap) { -+ unsigned int min, avg, max; -+ spin_lock(&irq_measurement_lock); -+ min = irq_cycles_to_micro(irq_measurements[irq].min, freq); -+ avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq); -+ max = irq_cycles_to_micro(irq_measurements[irq].max, freq); -+ irq_measurements[irq].max = 0; -+ spin_unlock(&irq_measurement_lock); -+ seq_printf(p, "%2u:\t%u\t%u\t%u\t%s\n", irq, min, avg, max, ap->name); -+ } -+ return 0; -+} -+ -+static void *irq_measurement_start(struct seq_file *f, loff_t *pos) -+{ -+ return (*pos <= NR_IRQS) ? pos : NULL; -+} -+ -+static void *irq_measurement_next(struct seq_file *f, void *v, loff_t *pos) -+{ -+ (*pos)++; -+ if (*pos > NR_IRQS) -+ return NULL; -+ return pos; -+} -+ -+static void irq_measurement_stop(struct seq_file *f, void *v) -+{ -+ /* Nothing to do */ -+} -+ -+static const struct seq_operations irq_measurement_seq_ops = { -+ .start = irq_measurement_start, -+ .next = irq_measurement_next, -+ .stop = irq_measurement_stop, -+ .show = irq_measurement_show, -+}; -+ -+static int irq_measurement_open(struct inode *inode, struct file *filp) -+{ -+ return seq_open(filp, &irq_measurement_seq_ops); -+} -+ -+static const struct file_operations irq_measurement_fops = { -+ .open = irq_measurement_open, -+ .read = seq_read, -+ .llseek = seq_lseek, -+ .release = seq_release, -+}; -+ -+static int __init irq_measurement_init(void) -+{ -+ proc_create("irq_measurements", 0, NULL, &irq_measurement_fops); -+ return 0; -+} -+module_init(irq_measurement_init); -+#endif -+ -+/* -+ * init_IRQ(void) -+ * Initialize the on-chip IRQ subsystem. -+ */ -+void __init init_IRQ(void) -+{ -+ int irq; -+ struct devtree_node *p = NULL; -+ struct devtree_node *iter = NULL; -+ unsigned int mask = 0; -+ unsigned int reserved = 0; -+ -+ /* -+ * Pull out the list of software interrupts that are avialable to -+ * Linux and provide an allocation function for them. The first -+ * 24 interrupts of INT0 are software interrupts. -+ */ -+ irq_soft_avail = 0; -+ if (processor_interrupts(&irq_soft_avail, NULL) < 0) { -+ printk(KERN_WARNING "No Soft IRQ(s) available\n"); -+ } -+ irq_soft_avail &= ((1 << 24) - 1); -+ -+ /* -+ * Initialize all of the on-chip interrupt handling -+ * to use a common set of interrupt functions. -+ */ -+ for (irq = 0; irq < NR_IRQS; irq++) { -+ irq_desc[irq].status = IRQ_DISABLED; -+ irq_desc[irq].action = NULL; -+ irq_desc[irq].depth = 1; -+ set_irq_chip(irq, &ubicom32_irq_chip); -+ } -+ -+ /* -+ * The sendirq of a devnode is not registered within Linux but instead -+ * is used by the software I/O thread. These interrupts are reserved. -+ * The recvirq is used by Linux and registered by a device driver, these -+ * are not reserved. -+ * -+ * recvirq(s) that are in the software interrupt range are not supposed -+ * to be marked as reserved. We track this while we scan the device -+ * nodes. -+ */ -+ p = devtree_find_next(&iter); -+ while (p) { -+ unsigned char sendirq, recvirq; -+ devtree_irq(p, &sendirq, &recvirq); -+ -+ /* -+ * If the sendirq is valid, mark that irq as taken by the -+ * devtree node. -+ */ -+ if (sendirq < NR_IRQS) { -+ ubicom32_reserve_action[sendirq].handler = -+ ubicom32_reserve_handler; -+ ubicom32_reserve_action[sendirq].name = p->name; -+ irq_desc[sendirq].action = -+ &ubicom32_reserve_action[sendirq]; -+ mask |= (1 << sendirq); -+ } -+ -+ /* -+ * Track the relevant recieve IRQ(s) -+ */ -+ if (recvirq < 24) { -+ mask |= (1 << recvirq); -+ } -+ -+ /* -+ * Move to the next node. -+ */ -+ p = devtree_find_next(&iter); -+ } -+ -+ /* -+ * Remove these bits from the irq_soft_avail list and then use the -+ * result as the list of pre-reserved IRQ(s). -+ */ -+ reserved = ~irq_soft_avail & ~mask; -+ for (irq = 0; irq < 24; irq++) { -+ if ((reserved & (1 << irq))) { -+ ubicom32_reserve_action[irq].handler = -+ ubicom32_reserve_handler; -+ ubicom32_reserve_action[irq].name = "reserved"; -+ irq_desc[irq].action = &ubicom32_reserve_action[irq]; -+ } -+ } -+ -+ /* -+ * Initialize the LDSR which is the Ubicom32 programmable -+ * interrupt controller. -+ */ -+ ldsr_init(); -+ -+ /* -+ * The Ubicom trap code needs a 2nd init after IRQ(s) are setup. -+ */ -+ trap_init_interrupt(); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/ldsr.c -@@ -0,0 +1,1176 @@ -+/* -+ * arch/ubicom32/kernel/ldsr.c -+ * Ubicom32 architecture Linux Device Services Driver Interface -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * NOTES: -+ * -+ * The LDSR is a programmable interrupt controller that is written in software. -+ * It emulates the behavior of an pic by fielding the interrupts, choosing a -+ * victim thread to take the interrupt and forcing that thread to take a context -+ * switch to the appropriate interrupt handler. -+ * -+ * Because traps are treated as just a special class of interrupts, the LDSR -+ * also handles the processing of traps. -+ * -+ * Because we compile Linux both UP and SMP, we need the LDSR to use -+ * architectural locking that is not "compiled out" when compiling UP. For now, -+ * we use the single atomic bit lock. -+ */ -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/sched.h> -+#include <linux/interrupt.h> -+#include <linux/irq.h> -+#include <linux/profile.h> -+#include <linux/clocksource.h> -+#include <linux/types.h> -+#include <linux/module.h> -+#include <linux/cpumask.h> -+#include <linux/bug.h> -+#include <linux/delay.h> -+#include <asm/ip5000.h> -+#include <asm/atomic.h> -+#include <asm/machdep.h> -+#include <asm/asm-offsets.h> -+#include <asm/traps.h> -+#include <asm/thread.h> -+#include <asm/range-protect.h> -+ -+/* -+ * One can not print from the LDSR so the best we can do is -+ * check a condition and stall all of the threads. -+ */ -+ -+// #define DEBUG_LDSR 1 -+#if defined(DEBUG_LDSR) -+#define DEBUG_ASSERT(cond) \ -+ if (!(cond)) { \ -+ THREAD_STALL; \ -+ } -+#else -+#define DEBUG_ASSERT(cond) -+#endif -+ -+/* -+ * Make global so that we can use it in the RFI code in assembly. -+ */ -+unsigned int ldsr_soft_irq_mask; -+EXPORT_SYMBOL(ldsr_soft_irq_mask); -+ -+static unsigned int ldsr_suspend_mask; -+static unsigned int ldsr_soft_irq; -+static unsigned int ldsr_stack_space[1024]; -+ -+static struct ldsr_register_bank { -+ volatile unsigned int enabled0; -+ volatile unsigned int enabled1; -+ volatile unsigned int mask0; -+ volatile unsigned int mask1; -+ unsigned int total; -+ unsigned int retry; -+ unsigned int backout; -+} ldsr_interrupt; -+ -+/* -+ * Which thread/cpu are we? -+ */ -+static int ldsr_tid = -1; -+ -+#if defined(CONFIG_IRQSTACKS) -+/* -+ * per-CPU IRQ stacks (thread information and stack) -+ * -+ * NOTE: Do not use DEFINE_PER_CPU() as it makes it harder -+ * to find the location of ctx from assembly language. -+ */ -+union irq_ctx { -+ struct thread_info tinfo; -+ u32 stack[THREAD_SIZE/sizeof(u32)]; -+}; -+static union irq_ctx *percpu_irq_ctxs[NR_CPUS]; -+ -+/* -+ * Storage for the interrupt stack. -+ */ -+#if !defined(CONFIG_IRQSTACKS_USEOCM) -+static char percpu_irq_stacks[(NR_CPUS * THREAD_SIZE) + (THREAD_SIZE - 1)]; -+#else -+/* -+ * For OCM, the linker will ensure that space is allocated for the stack -+ * see (vmlinux.lds.S) -+ */ -+static char percpu_irq_stacks[]; -+#endif -+ -+#endif -+ -+/* -+ * Save trap IRQ because we need to un-suspend if it gets set. -+ */ -+static unsigned int ldsr_trap_irq_mask; -+static unsigned int ldsr_trap_irq; -+ -+/* -+ * ret_from_interrupt_to_kernel -+ * Just restore the context and do nothing else. -+ */ -+asmlinkage void ret_from_interrupt_to_kernel(void)__attribute__((naked)); -+ -+/* -+ * ret_from_interrupt_to_user -+ * Call scheduler if needed. Just restore the context. -+ */ -+asmlinkage void ret_from_interrupt_to_user(void)__attribute__((naked)); -+ -+#ifdef DEBUG_LDSR -+u32_t old_sp, old_pc, old_a0, old_a5, old_a3; -+struct pt_regs copy_regs, *copy_save_area; -+#endif -+ -+int __user_mode(unsigned long sp) -+{ -+ -+ u32_t saved_stack_base = sp & ~(ASM_THREAD_SIZE - 1); -+#if defined(CONFIG_IRQSTACKS_USEOCM) -+ if ((union irq_ctx *)saved_stack_base == percpu_irq_ctxs[smp_processor_id()]) { -+ /* -+ * On the interrupt stack. -+ */ -+ return 0; -+ } -+#endif -+ -+ if (!(u32_t)current) { -+ return 0; -+ } -+ return saved_stack_base != ((u32_t)current->stack); -+} -+ -+/* -+ * ldsr_lock_release() -+ * Release the LDSR lock. -+ */ -+static void ldsr_lock_release(void) -+{ -+ UBICOM32_UNLOCK(LDSR_LOCK_BIT); -+} -+ -+/* -+ * ldsr_lock_acquire() -+ * Acquire the LDSR lock, spin if not available. -+ */ -+static void ldsr_lock_acquire(void) -+{ -+ UBICOM32_LOCK(LDSR_LOCK_BIT); -+} -+ -+/* -+ * ldsr_thread_irq_disable() -+ * Disable interrupts for the specified thread. -+ */ -+static void ldsr_thread_irq_disable(unsigned int tid) -+{ -+ unsigned int mask = (1 << tid); -+ -+ asm volatile ( -+ " or.4 scratchpad1, scratchpad1, %0 \n\t" -+ : -+ : "d"(mask) -+ : "cc" -+ ); -+} -+ -+/* -+ * ldsr_thread_get_interrupts() -+ * Get the interrupt state for all threads. -+ */ -+static unsigned long ldsr_thread_get_interrupts(void) -+{ -+ unsigned long ret = 0; -+ asm volatile ( -+ " move.4 %0, scratchpad1 \n\t" -+ : "=r" (ret) -+ : -+ ); -+ return ret; -+} -+ -+/* -+ * ldsr_emulate_and_run() -+ * Emulate the instruction and then set the thread to run. -+ */ -+static void ldsr_emulate_and_run(unsigned int tid) -+{ -+ unsigned int thread_mask = (1 << tid); -+ u32_t write_csr = (tid << 15) | (1 << 14); -+ -+ /* -+ * Emulate the unaligned access. -+ */ -+ unaligned_emulate(tid); -+ -+ /* -+ * Get the thread back in a running state. -+ */ -+ asm volatile ( -+ " setcsr %0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 trap_cause, #0 \n\t" /* Clear the trap cause -+ * register */ -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 mt_dbg_active_set, %1 \n\t" /* Activate thread even if -+ * in dbg/fault state */ -+ " move.4 mt_active_set, %1 \n\t" /* Restart target -+ * thread. */ -+ : -+ : "r" (write_csr), "d" (thread_mask) -+ : "cc" -+ ); -+ thread_enable_mask(thread_mask); -+} -+ -+/* -+ * ldsr_preemptive_context_save() -+ * save thread context from another hardware thread. The other thread must -+ * be stalled. -+ */ -+static inline void ldsr_preemptive_context_save(u32_t thread, -+ struct pt_regs *regs) -+{ -+ /* -+ * Save the current state of the specified thread -+ */ -+ asm volatile ( -+ " move.4 a3, %0 \n\t" -+ -+ /* set src1 from the target thread */ -+ " move.4 csr, %1 \n\t" -+ " setcsr_flush 0 \n\t" -+ " setcsr_flush 0 \n\t" -+ -+ /* copy state from the other thread */ -+ " move.4 "D(PT_D0)"(a3), d0 \n\t" -+ " move.4 "D(PT_D1)"(a3), d1 \n\t" -+ " move.4 "D(PT_D2)"(a3), d2 \n\t" -+ " move.4 "D(PT_D3)"(a3), d3 \n\t" -+ " move.4 "D(PT_D4)"(a3), d4 \n\t" -+ " move.4 "D(PT_D5)"(a3), d5 \n\t" -+ " move.4 "D(PT_D6)"(a3), d6 \n\t" -+ " move.4 "D(PT_D7)"(a3), d7 \n\t" -+ " move.4 "D(PT_D8)"(a3), d8 \n\t" -+ " move.4 "D(PT_D9)"(a3), d9 \n\t" -+ " move.4 "D(PT_D10)"(a3), d10 \n\t" -+ " move.4 "D(PT_D11)"(a3), d11 \n\t" -+ " move.4 "D(PT_D12)"(a3), d12 \n\t" -+ " move.4 "D(PT_D13)"(a3), d13 \n\t" -+ " move.4 "D(PT_D14)"(a3), d14 \n\t" -+ " move.4 "D(PT_D15)"(a3), d15 \n\t" -+ " move.4 "D(PT_A0)"(a3), a0 \n\t" -+ " move.4 "D(PT_A1)"(a3), a1 \n\t" -+ " move.4 "D(PT_A2)"(a3), a2 \n\t" -+ " move.4 "D(PT_A3)"(a3), a3 \n\t" -+ " move.4 "D(PT_A4)"(a3), a4 \n\t" -+ " move.4 "D(PT_A5)"(a3), a5 \n\t" -+ " move.4 "D(PT_A6)"(a3), a6 \n\t" -+ " move.4 "D(PT_SP)"(a3), a7 \n\t" -+ " move.4 "D(PT_ACC0HI)"(a3), acc0_hi \n\t" -+ " move.4 "D(PT_ACC0LO)"(a3), acc0_lo \n\t" -+ " move.4 "D(PT_MAC_RC16)"(a3), mac_rc16 \n\t" -+ " move.4 "D(PT_ACC1HI)"(a3), acc1_hi \n\t" -+ " move.4 "D(PT_ACC1LO)"(a3), acc1_lo \n\t" -+ " move.4 "D(PT_SOURCE3)"(a3), source3 \n\t" -+ " move.4 "D(PT_INST_CNT)"(a3), inst_cnt \n\t" -+ " move.4 "D(PT_CSR)"(a3), csr \n\t" -+ " move.4 "D(PT_DUMMY_UNUSED)"(a3), #0 \n\t" -+ " move.4 "D(PT_INT_MASK0)"(a3), int_mask0 \n\t" -+ " move.4 "D(PT_INT_MASK1)"(a3), int_mask1 \n\t" -+ " move.4 "D(PT_TRAP_CAUSE)"(a3), trap_cause \n\t" -+ " move.4 "D(PT_PC)"(a3), pc \n\t" -+ " move.4 "D(PT_PREVIOUS_PC)"(a3), previous_pc \n\t" -+ /* disable csr thread select */ -+ " movei csr, #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : -+ : "r" (regs->dn), "d" ((thread << 9) | (1 << 8)) -+ : "a3" -+ ); -+} -+ -+/* -+ * ldsr_rotate_threads() -+ * Simple round robin algorithm for choosing the next cpu -+ */ -+static int ldsr_rotate_threads(unsigned long cpus) -+{ -+ static unsigned char ldsr_bits[8] = { -+ 3, 0, 1, 0, 2, 0, 1, 0 -+ }; -+ -+ static int nextbit; -+ int thisbit; -+ -+ /* -+ * Move the interrupts down so that we consider interrupts from where -+ * we left off, then take the interrupts we would lose and move them -+ * to the top half of the interrupts value. -+ */ -+ cpus = (cpus >> nextbit) | (cpus << ((sizeof(cpus) * 8) - nextbit)); -+ -+ /* -+ * 50% of the time we won't take this at all and then of the cases where -+ * we do about 50% of those we only execute once. -+ */ -+ if (!(cpus & 0xffff)) { -+ nextbit += 16; -+ cpus >>= 16; -+ } -+ -+ if (!(cpus & 0xff)) { -+ nextbit += 8; -+ cpus >>= 8; -+ } -+ -+ if (!(cpus & 0xf)) { -+ nextbit += 4; -+ cpus >>= 4; -+ } -+ -+ nextbit += ldsr_bits[cpus & 0x7]; -+ thisbit = (nextbit & ((sizeof(cpus) * 8) - 1)); -+ nextbit = (thisbit + 1) & ((sizeof(cpus) * 8) - 1); -+ DEBUG_ASSERT(thisbit < THREAD_ARCHITECTURAL_MAX); -+ return thisbit; -+} -+ -+/* -+ * ldsr_rotate_interrupts() -+ * Get rotating next set bit value. -+ */ -+static int ldsr_rotate_interrupts(unsigned long long interrupts) -+{ -+ static unsigned char ldsr_bits[8] = { -+ 3, 0, 1, 0, 2, 0, 1, 0 -+ }; -+ -+ static int nextbit; -+ int thisbit; -+ -+ /* -+ * Move the interrupts down so that we consider interrupts from where -+ * we left off, then take the interrupts we would lose and move them -+ * to the top half of the interrupts value. -+ */ -+ interrupts = (interrupts >> nextbit) | -+ (interrupts << ((sizeof(interrupts) * 8) - nextbit)); -+ -+ /* -+ * 50% of the time we won't take this at all and then of the cases where -+ * we do about 50% of those we only execute once. -+ */ -+ if (!(interrupts & 0xffffffff)) { -+ nextbit += 32; -+ interrupts >>= 32; -+ } -+ -+ if (!(interrupts & 0xffff)) { -+ nextbit += 16; -+ interrupts >>= 16; -+ } -+ -+ if (!(interrupts & 0xff)) { -+ nextbit += 8; -+ interrupts >>= 8; -+ } -+ -+ if (!(interrupts & 0xf)) { -+ nextbit += 4; -+ interrupts >>= 4; -+ } -+ -+ nextbit += ldsr_bits[interrupts & 0x7]; -+ thisbit = (nextbit & ((sizeof(interrupts) * 8) - 1)); -+ nextbit = (thisbit + 1) & ((sizeof(interrupts) * 8) - 1); -+ -+ DEBUG_ASSERT(thisbit < (sizeof(interrupts) * 8)); -+ return thisbit; -+} -+ -+/* -+ * ldsr_backout_or_irq() -+ * -+ * One way or the other this interrupt is not being -+ * processed, make sure that it is reset. We are -+ * not going to call irq_end_vector() so unmask the -+ * interrupt. -+ */ -+static void ldsr_backout_of_irq(int vector, unsigned long tid_mask) -+{ -+#if defined(CONFIG_SMP) -+ if (unlikely(vector == smp_ipi_irq)) { -+ smp_reset_ipi(tid_mask); -+ } -+#endif -+ ldsr_unmask_vector(vector); -+ ldsr_interrupt.backout++; -+} -+ -+#if defined(CONFIG_IRQSTACKS) -+/* -+ * ldsr_choose_savearea_and_returnvec() -+ * Test our current state (user, kernel, interrupt) and set things up. -+ * -+ * This version of the function uses 3 stacks and nests interrupts -+ * on the interrupt stack. -+ */ -+static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec) -+{ -+ struct pt_regs *save_area; -+ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1); -+ struct thread_info * ti= (struct thread_info *)sw_ksp[tid]; -+ -+#if defined(CONFIG_SMP) -+ union irq_ctx *icp = percpu_irq_ctxs[tid]; -+#else -+ union irq_ctx *icp = percpu_irq_ctxs[0]; -+#endif -+ -+ if (masked_linux_sp == (u32_t)icp) { -+ /* -+ * Fault/Interrupt occurred while on the interrupt stack. -+ */ -+ save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8); -+ *pvec = (u32_t)(&ret_from_interrupt_to_kernel); -+ } else { -+ /* -+ * Fault/Interrupt occurred while on user/kernel stack. This is a new -+ * first use of the interrupt stack. -+ */ -+ save_area = (struct pt_regs *) ((char *)icp + sizeof(icp->stack) - sizeof(struct pt_regs) - 8); -+ if (masked_linux_sp == (u32_t)ti) { -+ *pvec = (u32_t)(&ret_from_interrupt_to_kernel); -+ } else { -+ *pvec = (u32_t)(&ret_from_interrupt_to_user); -+ } -+ -+ /* -+ * Because the softirq code will execute on the "interrupt" stack, we -+ * need to maintain the knowledge of what "task" was executing on the -+ * cpu. This is done by copying the thread_info->task from the cpu -+ * we are about to context switch into the interrupt contexts thread_info -+ * structure. -+ */ -+ icp->tinfo.task = ti->task; -+ icp->tinfo.preempt_count = -+ (icp->tinfo.preempt_count & ~SOFTIRQ_MASK) | -+ (ti->preempt_count & SOFTIRQ_MASK); -+ icp->tinfo.interrupt_nesting = 0; -+ } -+ save_area->nesting_level = icp->tinfo.interrupt_nesting; -+ return save_area; -+} -+ -+#else -+/* -+ * ldsr_choose_savearea_and_returnvec() -+ * Test our current state (user, kernel, interrupt) and set things up. -+ * -+ * The version of the function uses just the user & kernel stack and -+ * nests interrupts on the existing kernel stack. -+ */ -+static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec) -+{ -+ struct pt_regs *save_area; -+ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1); -+ struct thread_info *ti = (struct thread_info *)sw_ksp[tid]; -+ -+ if (masked_linux_sp == (u32_t)ti) { -+ /* -+ * Fault/Interrupt occurred while on the kernel stack. -+ */ -+ save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8); -+ *pvec = (u32_t) (&ret_from_interrupt_to_kernel); -+ } else { -+ /* -+ * Fault/Interrupt occurred while on user stack. -+ */ -+ ti->interrupt_nesting = 0; -+ save_area = (struct pt_regs *)((u32_t)ti + THREAD_SIZE - sizeof(struct pt_regs) - 8); -+ *pvec = (u32_t) (&ret_from_interrupt_to_user); -+ } -+ save_area->nesting_level = ti->interrupt_nesting; -+ return save_area; -+} -+#endif -+ -+/* -+ * ldsr_ctxsw_thread() -+ * Context switch a mainline thread to execute do_IRQ() for the specified -+ * vector. -+ */ -+static void ldsr_ctxsw_thread(int vector, thread_t tid) -+{ -+ u32_t linux_sp; -+ u32_t return_vector; -+ struct pt_regs *save_area, *regs; -+ u32_t thread_mask = (1 << tid); -+ u32_t read_csr = ((tid << 9) | (1 << 8)); -+ u32_t write_csr = (tid << 15) | (1 << 14); -+ u32_t interrupt_vector = (u32_t)(&do_IRQ); -+ -+ unsigned int frame_type = UBICOM32_FRAME_TYPE_INTERRUPT; -+ -+ -+ DEBUG_ASSERT(!thread_is_enabled(tid)); -+ -+ /* -+ * Acquire the necessary global and per thread locks for tid. -+ * As a side effect, we ensure that the thread has not trapped -+ * and return true if it has. -+ */ -+ if (unlikely(thread_is_trapped(tid))) { -+ /* -+ * Read the trap cause, the sp and clear the MT_TRAP bits. -+ */ -+ unsigned int cause; -+ asm volatile ( -+ " setcsr %3 \n\t" -+ " setcsr_flush 0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 %0, TRAP_CAUSE \n\t" -+ " move.4 %1, SP \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 MT_BREAK_CLR, %2\n\t" -+ " move.4 MT_TRAP_CLR, %2 \n\t" -+ : "=&r" (cause), "=&r" (linux_sp) -+ : "r" (thread_mask), "m" (read_csr) -+ ); -+ -+ ldsr_backout_of_irq(vector, (1 << tid)); -+ -+#if !defined(CONFIG_UNALIGNED_ACCESS_DISABLED) -+ /* -+ * See if the unaligned trap handler can deal with this. -+ * If so, emulate the instruction and then just restart -+ * the thread. -+ */ -+ if (unaligned_only(cause)) { -+#if defined(CONFIG_UNALIGNED_ACCESS_USERSPACE_ONLY) -+ /* -+ * Check if this is a kernel stack if so we will not -+ * handle the trap -+ */ -+ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1); -+ if ((masked_linux_sp != (u32_t)sw_ksp[tid]) && -+ unaligned_only(cause)) { -+ ldsr_emulate_and_run(tid); -+ return; -+ } -+#else -+ ldsr_emulate_and_run(tid); -+ return; -+#endif -+ -+ } -+#endif -+ -+ interrupt_vector = (u32_t)(&trap_handler); -+ frame_type = UBICOM32_FRAME_TYPE_TRAP; -+ } else { -+ /* -+ * Read the target thread's SP -+ */ -+ asm volatile ( -+ " setcsr %1 \n\t" -+ " setcsr_flush 0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 %0, SP \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : "=m" (linux_sp) -+ : "m" (read_csr) -+ ); -+ } -+ -+ /* -+ * We are delivering an interrupt, count it. -+ */ -+ ldsr_interrupt.total++; -+ -+ /* -+ * At this point, we will definitely force this thread to -+ * a new context, show its interrupts as disabled. -+ */ -+ ldsr_thread_irq_disable(tid); -+ -+ /* -+ * Test our current state (user, kernel, interrupt). Save the -+ * appropriate data and setup for the return. -+ */ -+ save_area = ldsr_choose_savearea_and_returnvec(tid, linux_sp, &return_vector); -+ -+ /* -+ * The pt_regs (save_area) contains the type of thread that we are dealing -+ * with (KERNEL/NORMAL) and is copied into each pt_regs area. We get this -+ * from the current tasks kernel pt_regs area that always exists at the -+ * top of the kernel stack. -+ */ -+ regs = (struct pt_regs *)((u32_t)sw_ksp[tid] + THREAD_SIZE - sizeof(struct pt_regs) - 8); -+ save_area->thread_type = regs->thread_type; -+ -+ /* -+ * Preserve the context of the Linux thread. -+ */ -+ ldsr_preemptive_context_save(tid, save_area); -+ -+ /* -+ * Load the fram_type into the save_area. -+ */ -+ save_area->frame_type = frame_type; -+ -+#ifdef CONFIG_STOP_ON_TRAP -+ /* -+ * Before we get backtrace and showing stacks working well, it sometimes -+ * helps to enter the debugger when a trap occurs before we change the -+ * thread to handle the fault. This optional code causes all threads to -+ * stop on every trap frame. One assumes that GDB connected via the -+ * mailbox interface will be used to recover from this state. -+ */ -+ if (frame_type == UBICOM32_FRAME_TYPE_TRAP) { -+ THREAD_STALL; -+ } -+#endif -+ -+#ifdef DEBUG_LDSR -+ copy_regs = *save_area; -+ copy_save_area = save_area; -+ -+ old_a0 = save_area->an[0]; -+ old_a3 = save_area->an[3]; -+ old_sp = save_area->an[7]; -+ old_a5 = save_area->an[5]; -+ old_pc = save_area->pc; -+#endif -+ -+ /* -+ * Now we have to switch the kernel thread to run do_IRQ function. -+ * Set pc to do_IRQ -+ * Set d0 to vector -+ * Set d1 to save_area. -+ * Set a5 to the proper return vector. -+ */ -+ asm volatile ( -+ " setcsr %0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 d0, %5 \n\t" /* d0 = 0 vector # */ -+ " move.4 d1, %1 \n\t" /* d1 = save_area */ -+ " move.4 sp, %1 \n\t" /* sp = save_area */ -+ " move.4 a5, %2 \n\t" /* a5 = return_vector */ -+ " move.4 pc, %3 \n\t" /* pc = do_IRQ routine. */ -+ " move.4 trap_cause, #0 \n\t" /* Clear the trap cause -+ * register */ -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " enable_kernel_ranges %4 \n\t" -+ " move.4 mt_dbg_active_set, %4 \n\t" /* Activate thread even if -+ * in dbg/fault state */ -+ " move.4 mt_active_set, %4 \n\t" /* Restart target -+ * thread. */ -+ : -+ : "r" (write_csr), "r" (save_area), -+ "r" (return_vector), "r" (interrupt_vector), -+ "d" (thread_mask), "r" (vector) -+ : "cc" -+ ); -+ thread_enable_mask(thread_mask); -+} -+ -+/* -+ * ldsr_deliver_interrupt() -+ * Deliver the interrupt to one of the threads or all of the threads. -+ */ -+static void ldsr_deliver_interrupt(int vector, -+ unsigned long deliver_to, -+ int all) -+{ -+ unsigned long disabled_threads; -+ unsigned long possible_threads; -+ unsigned long trapped_threads; -+ unsigned long global_locks; -+ -+ /* -+ * Disable all of the threads that we might want to send -+ * this interrupt to. -+ */ -+retry: -+ DEBUG_ASSERT(deliver_to); -+ thread_disable_mask(deliver_to); -+ -+ /* -+ * If any threads are in the trap state, we have to service the -+ * trap for those threads first. -+ */ -+ asm volatile ( -+ "move.4 %0, MT_TRAP \n\t" -+ : "=r" (trapped_threads) -+ : -+ ); -+ -+ trapped_threads &= deliver_to; -+ if (unlikely(trapped_threads)) { -+ /* -+ * all traps will be handled, so clear the trap bit before restarting any threads -+ */ -+ ubicom32_clear_interrupt(ldsr_trap_irq); -+ -+ /* -+ * Let the remaining untrapped threads, continue. -+ */ -+ deliver_to &= ~trapped_threads; -+ if (deliver_to) { -+ thread_enable_mask(deliver_to); -+ } -+ -+ /* -+ * For the trapped threads force them to handle -+ * a trap. -+ */ -+ while (trapped_threads) { -+ unsigned long which = ffz(~trapped_threads); -+ trapped_threads &= ~(1 << which); -+ ldsr_ctxsw_thread(vector, which); -+ } -+ return; -+ } -+ -+ /* -+ * Can we deliver an interrupt to any of the threads? -+ */ -+ disabled_threads = ldsr_thread_get_interrupts(); -+ possible_threads = deliver_to & ~disabled_threads; -+ if (unlikely(!possible_threads)) { -+#if defined(CONFIG_SMP) -+ /* -+ * In the SMP case, we can not wait because 1 cpu might be -+ * sending an IPI to another cpu which is currently blocked. -+ * The only way to ensure IPI delivery is to backout and -+ * keep trying. For SMP, we don't sleep until the interrupts -+ * are delivered. -+ */ -+ thread_enable_mask(deliver_to); -+ ldsr_backout_of_irq(vector, deliver_to); -+ return; -+#else -+ /* -+ * In the UP case, we have nothing to do so we should wait. -+ * -+ * Since the INT_MASK0 and INT_MASK1 are "re-loaded" before we -+ * suspend in the outer loop, we do not need to save them here. -+ * -+ * We test that we were awakened for our specific interrupts -+ * because the ldsr mask/unmask operations will force the ldsr -+ * awake even if the interrupt on the mainline thread is not -+ * completed. -+ */ -+ unsigned int scratch = 0; -+ thread_enable_mask(deliver_to); -+ asm volatile ( -+ " move.4 INT_MASK0, %1 \n\t" -+ " move.4 INT_MASK1, #0 \n\t" -+ -+ "1: suspend \n\t" -+ " move.4 %0, INT_STAT0 \n\t" -+ " and.4 %0, %0, %1 \n\t" -+ " jmpeq.f 1b \n\t" -+ -+ " move.4 INT_CLR0, %2 \n\t" -+ : "+r" (scratch) -+ : "d" (ldsr_suspend_mask), "r" (ldsr_soft_irq_mask) -+ : "cc" -+ ); -+ -+ /* -+ * This delay is sized to coincide with the time it takes a -+ * thread to complete the exit (see return_from_interrupt). -+ */ -+ ldsr_interrupt.retry++; -+ __delay(10); -+ goto retry; -+#endif -+ } -+ -+ /* -+ * If any of the global locks are held, we can not deliver any -+ * interrupts, we spin delay(10) and then try again. If our -+ * spinning becomes a bottle neck, we will need to suspend but for -+ * now lets just spin. -+ */ -+ asm volatile ( -+ "move.4 %0, scratchpad1 \n\t" -+ : "=r" (global_locks) -+ : -+ ); -+ if (unlikely(global_locks & 0xffff0000)) { -+ thread_enable_mask(deliver_to); -+ -+ /* -+ * This delay is sized to coincide with the average time it -+ * takes a thread to release a global lock. -+ */ -+ ldsr_interrupt.retry++; -+ __delay(10); -+ goto retry; -+ } -+ -+ /* -+ * Deliver to one cpu. -+ */ -+ if (!all) { -+ /* -+ * Find our victim and then enable everyone else. -+ */ -+ unsigned long victim = ldsr_rotate_threads(possible_threads); -+ DEBUG_ASSERT((deliver_to & (1 << victim))); -+ DEBUG_ASSERT((possible_threads & (1 << victim))); -+ -+ deliver_to &= ~(1 << victim); -+ if (deliver_to) { -+ thread_enable_mask(deliver_to); -+ } -+ ldsr_ctxsw_thread(vector, victim); -+ return; -+ } -+ -+ /* -+ * If we can't deliver to some threads, wake them -+ * back up and reset things to deliver to them. -+ */ -+ deliver_to &= ~possible_threads; -+ if (unlikely(deliver_to)) { -+ thread_enable_mask(deliver_to); -+ ldsr_backout_of_irq(vector, deliver_to); -+ } -+ -+ /* -+ * Deliver to all possible threads(s). -+ */ -+ while (possible_threads) { -+ unsigned long victim = ffz(~possible_threads); -+ possible_threads &= ~(1 << victim); -+ ldsr_ctxsw_thread(vector, victim); -+ } -+} -+ -+/* -+ * ldsr_thread() -+ * This thread acts as the interrupt controller for Linux. -+ */ -+static void ldsr_thread(void *arg) -+{ -+ int stat0; -+ int stat1; -+ int interrupt0; -+ int interrupt1; -+ long long interrupts; -+ unsigned long cpus; -+ -+#if !defined(CONFIG_SMP) -+ /* -+ * In a non-smp configuration, we can not use the cpu(s) arrays because -+ * there is not a 1-1 correspondence between cpus(s) and our threads. -+ * Thus we must get a local idea of the mainline threads and use the -+ * one and only 1 set as the victim. We do this once before the ldsr -+ * loop. -+ * -+ * In the SMP case, we will use the cpu(s) map to determine which cpu(s) -+ * are valid to send interrupts to. -+ */ -+ int victim = 0; -+ unsigned int mainline = thread_get_mainline(); -+ if (mainline == 0) { -+ panic("no mainline Linux threads to interrupt"); -+ return; -+ } -+ victim = ffz(~mainline); -+ cpus = (1 << victim); -+#endif -+ -+ while (1) { -+ /* -+ * If one changes this code not to reload the INT_MASK(s), you -+ * need to know that code in the lock waiting above does not -+ * reset the MASK registers back; so that code will need to be -+ * changed. -+ */ -+ ldsr_lock_acquire(); -+ asm volatile ( -+ " move.4 INT_MASK0, %0 \n\t" -+ " move.4 INT_MASK1, %1 \n\t" -+ : -+ : "U4" (ldsr_interrupt.mask0), "U4" (ldsr_interrupt.mask1) -+ ); -+ ldsr_lock_release(); -+ thread_suspend(); -+ -+ /* -+ * Read the interrupt status registers -+ */ -+ asm volatile ( -+ "move.4 %0, INT_STAT0 \n\t" -+ "move.4 %1, INT_STAT1 \n\t" -+ : "=r" (stat0), "=r" (stat1) -+ : -+ ); -+ -+ /* -+ * We only care about interrupts that we have been told to care -+ * about. The interrupt must be enabled, unmasked, and have -+ * occurred in the hardware. -+ */ -+ ldsr_lock_acquire(); -+ interrupt0 = ldsr_interrupt.enabled0 & -+ ldsr_interrupt.mask0 & stat0; -+ interrupt1 = ldsr_interrupt.enabled1 & -+ ldsr_interrupt.mask1 & stat1; -+ ldsr_lock_release(); -+ -+ /* -+ * For each interrupt in the "snapshot" we will mask the -+ * interrupt handle the interrupt (typically calling do_IRQ()). -+ * -+ * The interrupt is unmasked by desc->chip->end() function in -+ * the per chip generic interrupt handling code -+ * (arch/ubicom32/kernel/irq.c).8 -+ */ -+ interrupts = ((unsigned long long)interrupt1 << 32) | -+ interrupt0; -+ while (interrupts) { -+ int all = 0; -+ int vector = ldsr_rotate_interrupts(interrupts); -+ interrupts &= ~((unsigned long long)1 << vector); -+ -+ /* -+ * Now mask off this vector so that the LDSR ignores -+ * it until it is acknowledged. -+ */ -+ ldsr_mask_vector(vector); -+#if !defined(CONFIG_SMP) -+ ldsr_deliver_interrupt(vector, cpus, all); -+#else -+ cpus = smp_get_affinity(vector, &all); -+ if (cpus) { -+ ldsr_deliver_interrupt(vector, cpus, all); -+ } -+#endif -+ } -+ } -+ -+ /* NOTREACHED */ -+} -+ -+/* -+ * ldsr_mask_vector() -+ * Temporarily mask the interrupt vector, turn off the bit in the mask -+ * register. -+ */ -+void ldsr_mask_vector(unsigned int vector) -+{ -+ unsigned int mask; -+ if (vector < 32) { -+ mask = ~(1 << vector); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.mask0 &= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+ return; -+ } -+ -+ mask = ~(1 << (vector - 32)); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.mask1 &= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+} -+ -+/* -+ * ldsr_unmask_vector() -+ * Unmask the interrupt vector so that it can be used, turn on the bit in -+ * the mask register. -+ * -+ * Because it is legal for the interrupt path to disable an interrupt, -+ * the unmasking code must ensure that disabled interrupts are not -+ * unmasked. -+ */ -+void ldsr_unmask_vector(unsigned int vector) -+{ -+ unsigned int mask; -+ if (vector < 32) { -+ mask = (1 << vector); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.mask0 |= (mask & ldsr_interrupt.enabled0); -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+ return; -+ } -+ -+ mask = (1 << (vector - 32)); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.mask1 |= (mask & ldsr_interrupt.enabled1); -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+} -+ -+/* -+ * ldsr_enable_vector() -+ * The LDSR implements an interrupt controller and has a local (to the -+ * LDSR) copy of its interrupt mask. -+ */ -+void ldsr_enable_vector(unsigned int vector) -+{ -+ unsigned int mask; -+ if (vector < 32) { -+ mask = (1 << vector); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.enabled0 |= mask; -+ ldsr_interrupt.mask0 |= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+ return; -+ } -+ -+ mask = (1 << (vector - 32)); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.enabled1 |= mask; -+ ldsr_interrupt.mask1 |= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+} -+ -+/* -+ * ldsr_disable_vector() -+ * The LDSR implements an interrupt controller and has a local (to the -+ * LDSR) copy of its interrupt mask. -+ */ -+void ldsr_disable_vector(unsigned int vector) -+{ -+ unsigned int mask; -+ -+ if (vector < 32) { -+ mask = ~(1 << vector); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.enabled0 &= mask; -+ ldsr_interrupt.mask0 &= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+ return; -+ } -+ -+ mask = ~(1 << (vector - 32)); -+ ldsr_lock_acquire(); -+ ldsr_interrupt.enabled1 &= mask; -+ ldsr_interrupt.mask1 &= mask; -+ ldsr_lock_release(); -+ thread_resume(ldsr_tid); -+} -+ -+/* -+ * ldsr_get_threadid() -+ * Return the threadid of the LDSR thread. -+ */ -+thread_t ldsr_get_threadid(void) -+{ -+ return ldsr_tid; -+} -+ -+/* -+ * ldsr_set_trap_irq() -+ * Save away the trap Soft IRQ -+ * -+ * See the per thread lock suspend code above for an explination. -+ */ -+void ldsr_set_trap_irq(unsigned int irq) -+{ -+ ldsr_trap_irq = irq; -+ ldsr_trap_irq_mask = (1 << irq); -+ ldsr_suspend_mask |= ldsr_trap_irq_mask; -+} -+ -+/* -+ * ldsr_init() -+ * Initialize the LDSR (Interrupt Controller) -+ */ -+void ldsr_init(void) -+{ -+#if defined(CONFIG_IRQSTACKS) -+ int i; -+ union irq_ctx *icp; -+#endif -+ -+ void *stack_high = (void *)ldsr_stack_space; -+ stack_high += sizeof(ldsr_stack_space); -+ stack_high -= 8; -+ -+ -+ /* -+ * Obtain a soft IRQ to use -+ */ -+ if (irq_soft_alloc(&ldsr_soft_irq) < 0) { -+ panic("no software IRQ is available\n"); -+ return; -+ } -+ ldsr_soft_irq_mask |= (1 << ldsr_soft_irq); -+ ldsr_suspend_mask |= ldsr_soft_irq_mask; -+ -+ /* -+ * Now allocate and start the LDSR thread. -+ */ -+ ldsr_tid = thread_alloc(); -+ if (ldsr_tid < 0) { -+ panic("no thread available to run LDSR"); -+ return; -+ } -+ -+#if defined(CONFIG_IRQSTACKS) -+ /* -+ * Initialize the per-cpu irq thread_info structure that -+ * is at the top of each per-cpu irq stack. -+ */ -+ icp = (union irq_ctx *) -+ (((unsigned long)percpu_irq_stacks + (THREAD_SIZE - 1)) & ~(THREAD_SIZE - 1)); -+ for (i = 0; i < NR_CPUS; i++) { -+ struct thread_info *ti = &(icp->tinfo); -+ ti->task = NULL; -+ ti->exec_domain = NULL; -+ ti->cpu = i; -+ ti->preempt_count = 0; -+ ti->interrupt_nesting = 0; -+ percpu_irq_ctxs[i] = icp++; -+ } -+#endif -+ thread_start(ldsr_tid, ldsr_thread, NULL, -+ stack_high, THREAD_TYPE_NORMAL); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/Makefile -@@ -0,0 +1,64 @@ -+# -+# arch/ubicom32/kernel/Makefile -+# Main Makefile for the Ubicom32 arch directory. -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+extra-y := head.o vmlinux.lds -+ -+obj-y += \ -+ devtree.o \ -+ dma.o \ -+ flat.o \ -+ init_task.o \ -+ irq.o \ -+ ldsr.o \ -+ os_node.o \ -+ process.o \ -+ processor.o \ -+ ptrace.o \ -+ setup.o \ -+ signal.o \ -+ stacktrace.o \ -+ sys_ubicom32.o \ -+ syscalltable.o \ -+ thread.o \ -+ time.o \ -+ traps.o \ -+ ubicom32_context_switch.o \ -+ ubicom32_ksyms.o \ -+ ubicom32_syscall.o \ -+ unaligned_trap.o -+ -+obj-$(CONFIG_MODULES) += module.o -+obj-$(CONFIG_COMEMPCI) += comempci.o -+obj-$(CONFIG_SMP) += smp.o topology.o -+obj-$(CONFIG_ACCESS_OK_CHECKS_ENABLED) += uaccess.o -+obj-$(CONFIG_GENERIC_CLOCKEVENTS) += timer_device.o -+obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += timer_broadcast.o -+ -+ifndef CONFIG_GENERIC_CLOCKEVENTS -+obj-y += timer_tick.o -+endif ---- /dev/null -+++ b/arch/ubicom32/kernel/module.c -@@ -0,0 +1,463 @@ -+/* -+ * arch/ubicom32/kernel/module.c -+ * Ubicom32 architecture loadable module support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/moduleloader.h> -+#include <linux/bug.h> -+#include <linux/elf.h> -+#include <linux/vmalloc.h> -+#include <linux/fs.h> -+#include <linux/string.h> -+#include <linux/kernel.h> -+#include <asm/ocm-alloc.h> -+ -+#if 0 -+#define DEBUGP printk -+#else -+#define DEBUGP(fmt...) -+#endif -+ -+static void _module_free_ocm(struct module *mod) -+{ -+ printk(KERN_INFO "module arch cleanup %s: OCM instruction memory free " -+ " of %d @%p\n", mod->name, mod->arch.ocm_inst_size, -+ mod->arch.ocm_inst); -+ -+ if (mod->arch.ocm_inst) { -+ ocm_inst_free(mod->arch.ocm_inst); -+ mod->arch.ocm_inst = 0; -+ mod->arch.ocm_inst_size = 0; -+ } -+} -+ -+void *module_alloc(unsigned long size) -+{ -+ if (size == 0) -+ return NULL; -+ return vmalloc(size); -+} -+ -+ -+/* Free memory returned from module_alloc */ -+void module_free(struct module *mod, void *module_region) -+{ -+ vfree(module_region); -+ /* FIXME: If module_region == mod->init_region, trim exception -+ table entries. */ -+ -+ /* -+ * This is expected to be final module free, use this to prune the -+ * ocm -+ */ -+ if (module_region && module_region == mod->module_core) -+ _module_free_ocm(mod); -+ -+} -+ -+/* -+ * module_frob_arch_sections() -+ * Called from kernel/module.c allowing arch specific handling of -+ * sections/headers. -+ */ -+int module_frob_arch_sections(Elf_Ehdr *hdr, -+ Elf_Shdr *sechdrs, -+ char *secstrings, -+ struct module *mod) -+{ -+ Elf_Shdr *s, *sechdrs_end; -+ void *ocm_inst = NULL; -+ int ocm_inst_size = 0; -+ -+ /* -+ * Ubicom32 v3 and v4 are almost binary compatible but not completely. -+ * To be safe check that the module was compiled with the correct -march -+ * which is flags. -+ */ -+#ifdef CONFIG_UBICOM32_V4 -+ if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V4) { -+ printk(KERN_WARNING "Module %s was not compiled for " -+ "ubicom32v4, elf_flags:%x,\n", -+ mod->name, hdr->e_flags); -+ return -ENOEXEC; -+ } -+#elif defined CONFIG_UBICOM32_V3 -+ if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V3) { -+ printk(KERN_WARNING "Module %s was not compiled for " -+ "ubicom32v3, elf_flags:%x\n", -+ mod->name, hdr->e_flags); -+ return -ENOEXEC; -+ } -+#else -+#error Unknown/Unsupported ubicom32 architecture. -+#endif -+ -+ /* -+ * XXX: sechdrs are vmalloced in kernel/module.c -+ * and would be vfreed just after module is loaded, -+ * so we hack to keep the only information we needed -+ * in mod->arch to correctly free L1 I/D sram later. -+ * NOTE: this breaks the semantic of mod->arch structure. -+ */ -+ sechdrs_end = sechdrs + hdr->e_shnum; -+ for (s = sechdrs; s < sechdrs_end; ++s) { -+ if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0) -+ ocm_inst_size += s->sh_size; -+ } -+ -+ if (!ocm_inst_size) -+ return 0; -+ -+ ocm_inst = ocm_inst_alloc(ocm_inst_size, 0 /* internal */); -+ if (ocm_inst == NULL) { -+#ifdef CONFIG_OCM_MODULES_FALLBACK_TO_DDR -+ printk(KERN_WARNING -+ "module %s: OCM instruction memory allocation of %d" -+ "failed, fallback to DDR\n", mod->name, ocm_inst_size); -+ return 0; -+#else -+ printk(KERN_ERR -+ "module %s: OCM instruction memory allocation of %d" -+ "failed.\n", mod->name, ocm_inst_size); -+ return -ENOMEM; -+#endif -+ } -+ -+ mod->arch.ocm_inst = ocm_inst; -+ mod->arch.ocm_inst_size = ocm_inst_size; -+ -+ printk(KERN_INFO -+ "module %s: OCM instruction memory allocation of %d @%p\n", -+ mod->name, mod->arch.ocm_inst_size, mod->arch.ocm_inst); -+ -+ for (s = sechdrs; s < sechdrs_end; ++s) { -+ if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0) { -+ memcpy(ocm_inst, (void *)s->sh_addr, s->sh_size); -+ s->sh_flags &= ~SHF_ALLOC; -+ s->sh_addr = (unsigned long)ocm_inst; -+ ocm_inst += s->sh_size; -+ } -+ } -+ -+ return 0; -+} -+ -+int apply_relocate(Elf32_Shdr *sechdrs, -+ const char *strtab, -+ unsigned int symindex, -+ unsigned int relsec, -+ struct module *me) -+{ -+ DEBUGP("Invalid Applying relocate section %u to %u\n", relsec, -+ sechdrs[relsec].sh_info); -+ return -EINVAL; -+} -+ -+int apply_relocate_add(Elf32_Shdr *sechdrs, -+ const char *strtab, -+ unsigned int symindex, -+ unsigned int relsec, -+ struct module *me) -+{ -+ unsigned int i; -+ Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; -+ Elf32_Sym *sym; -+ uint32_t *location; -+ uint32_t insn; -+ -+ DEBUGP("Applying relocate_add section %u to %u\n", relsec, -+ sechdrs[relsec].sh_info); -+ for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { -+ uint32_t v; -+ const int elf32_rtype = ELF32_R_TYPE(rel[i].r_info); -+ -+ /* This is where to make the change */ -+ location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr -+ + rel[i].r_offset; -+ /* This is the symbol it is referring to. Note that all -+ undefined symbols have been resolved. */ -+ sym = (Elf32_Sym *)sechdrs[symindex].sh_addr -+ + ELF32_R_SYM(rel[i].r_info); -+ -+ v = rel[i].r_addend + sym->st_value; -+ -+ -+ switch (elf32_rtype) { -+ case R_UBICOM32_32: -+ { -+ /* -+ * Store the 32 bit relocation as is. -+ */ -+ *location = v; -+ break; -+ } -+ case R_UBICOM32_HI24: -+ { -+ /* -+ * 24 bit relocation that is part of the MOVEAI -+ * instruction. The 24 bits come from bits 7 - 30 of the -+ * relocation. Theses bits eventually get split into 2 -+ * fields in the instruction encoding. -+ * -+ * - Bits 7 - 27 of the relocation are encoded into bits -+ * 0 - 20 of the instruction. -+ * -+ * - Bits 28 - 30 of the relocation are encoded into -+ * bit 24 - 26 of the instruction. -+ */ -+ uint32_t valid24 = (v >> 7) & 0xffffff; -+ insn = *location; -+ -+ insn &= ~(0x1fffff | (0x7 << 24)); -+ insn |= (valid24 & 0x1fffff); -+ insn |= ((valid24 & 0xe00000) << 3); -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_LO7_S: -+ case R_UBICOM32_LO7_2_S: -+ case R_UBICOM32_LO7_4_S: -+ { -+ /* -+ * Bits 0 - 6 of the relocation are encoded into the -+ * 7bit unsigned immediate fields of the SOURCE-1 field -+ * of the instruction. The immediate value is left -+ * shifted by (0, 1, 2) based on the operand size. -+ */ -+ uint32_t valid7 = v & 0x7f; -+ insn = *location; -+ -+ if (elf32_rtype == R_UBICOM32_LO7_2_S) { -+ valid7 >>= 1; -+ } else if (elf32_rtype == R_UBICOM32_LO7_4_S) { -+ valid7 >>= 2; -+ } -+ -+ insn &= ~(0x1f | (0x3 << 8)); -+ insn |= (valid7 & 0x1f); -+ insn |= ((valid7 & 0x60) << 3); -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_LO7_D: -+ case R_UBICOM32_LO7_2_D: -+ case R_UBICOM32_LO7_4_D: -+ { -+ /* -+ * Bits 0 - 6 of the relocation are encoded into the -+ * 7bit unsigned immediate fields of the DESTINATION -+ * field of the instruction. The immediate value is -+ * left shifted by (0, 1, 2) based on the operand size. -+ */ -+ uint32_t valid7 = v & 0x7f; -+ insn = *location; -+ -+ if (elf32_rtype == R_UBICOM32_LO7_2_D) { -+ valid7 >>= 1; -+ } else if (elf32_rtype == R_UBICOM32_LO7_4_D) { -+ valid7 >>= 2; -+ } -+ -+ insn &= ~((0x1f | (0x3 << 8)) << 16); -+ insn |= ((valid7 & 0x1f) << 16); -+ insn |= ((valid7 & 0x60) << 19); -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_LO7_CALLI: -+ case R_UBICOM32_LO16_CALLI: -+ { -+ /* -+ * Extract the offset for a CALLI instruction. The -+ * offsets can be either 7 bits or 18 bits. Since all -+ * instructions in ubicom32 architecture are at work -+ * aligned addresses the truncated offset is right -+ * shifted by 2 before being encoded in the instruction. -+ */ -+ uint32_t val; -+ if (elf32_rtype == R_UBICOM32_LO7_CALLI) { -+ val = v & 0x7f; -+ } else { -+ val = v & 0x3ffff; -+ } -+ -+ val >>= 2; -+ -+ insn = *location; -+ -+ insn &= ~0x071f071f; -+ insn |= (val & 0x1f) << 0; -+ val >>= 5; -+ insn |= (val & 0x07) << 8; -+ val >>= 3; -+ insn |= (val & 0x1f) << 16; -+ val >>= 5; -+ insn |= (val & 0x07) << 24; -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_24_PCREL: -+ { -+ /* -+ * Extract 26 bit signed PC relative offset for CALL -+ * instructions. Since instruction addresses are word -+ * aligned the offset is right shited by 2 before -+ * encoding into instruction. -+ */ -+ int32_t val = v - (int32_t)location; -+ -+ /* -+ * Check that the top 7 bits are all equal to the sign -+ * bit (26), i.e all 0's or all 1's. If they are not then -+ * the absolute difference is greater than 25 bits. -+ */ -+ if (((uint32_t)val & 0xFE000000) != 0xFE000000 && -+ ((uint32_t)val & 0xFE000000) != 0x0) { -+ /* -+ * The relocation is beyond our addressable -+ * range with a 26 bit call. -+ */ -+ printk(KERN_ERR "module %s: PC Relative " -+ "relocation out of range: " -+ "%u (%x->%x, %x)\n", -+ me->name, elf32_rtype, -+ v, (uint32_t) location, val); -+ return -ENOEXEC; -+ } -+ -+ val = (val & 0x3ffffff) >> 2; -+ insn = *location; -+ insn = insn & 0xf8e00000; -+ -+ insn |= (val >> 21) << 24; -+ insn |= (val & 0x1fffff); -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_LO16: -+ case R_UBICOM32_HI16: -+ { -+ /* -+ * 16 bit immediate value that is encoded into bit 0 - -+ * 15 of the instruction. -+ */ -+ uint32_t val; -+ -+ if (elf32_rtype == R_UBICOM32_LO16) { -+ val = v & 0xffff; -+ } else { -+ val = (v >> 16) & 0xffff; -+ } -+ -+ insn = *location; -+ insn &= 0xffff0000; -+ -+ insn |= val; -+ *location = insn; -+ } -+ break; -+ case R_UBICOM32_21_PCREL: -+ { -+ /* -+ * Extract 23 bit signed PC relative offset for JMP<cc> -+ * instructions. Since instruction addresses are word -+ * aligned the offset is right shited by 2 before -+ * encoding into instruction. -+ */ -+ int32_t val = v - (int32_t)location; -+ -+ val = (val & 0x7fffff) >> 2; -+ insn = *location; -+ insn = insn & 0xffe00000; -+ -+ insn |= (val >> 21) << 24; -+ insn |= val; -+ *location = insn; -+ } -+ break; -+ default: -+ BUG(); -+ printk(KERN_ERR "module %s: Unknown relocation: %u\n", -+ me->name, elf32_rtype); -+ return -ENOEXEC; -+ } -+ } -+ return 0; -+} -+ -+int module_finalize(const Elf_Ehdr *hdr, -+ const Elf_Shdr *sechdrs, -+ struct module *mod) -+{ -+ unsigned int i, strindex = 0, symindex = 0; -+ char *secstrings; -+ int err; -+ -+ err = module_bug_finalize(hdr, sechdrs, mod); -+ if (err) -+ return err; -+ -+ if (!mod->arch.ocm_inst) { -+ /* -+ * No OCM code, so nothing more to do. -+ */ -+ return 0; -+ } -+ -+ secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; -+ -+ for (i = 1; i < hdr->e_shnum; i++) { -+ /* Internal symbols and strings. */ -+ if (sechdrs[i].sh_type == SHT_SYMTAB) { -+ symindex = i; -+ strindex = sechdrs[i].sh_link; -+ } -+ } -+ -+ for (i = 1; i < hdr->e_shnum; i++) { -+ const char *strtab = (char *)sechdrs[strindex].sh_addr; -+ unsigned int info = sechdrs[i].sh_info; -+ -+ /* Not a valid relocation section? */ -+ if (info >= hdr->e_shnum) -+ continue; -+ -+ if ((sechdrs[i].sh_type == SHT_RELA) && -+ (strncmp(".rela.ocm_text", -+ secstrings + sechdrs[i].sh_name, 5 + 9) == 0)) { -+ err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab, -+ symindex, i, mod); -+ if (err) -+ return err; -+ } -+ } -+ -+ return 0; -+} -+ -+void module_arch_cleanup(struct module *mod) -+{ -+ module_bug_cleanup(mod); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/os_node.c -@@ -0,0 +1,80 @@ -+/* -+ * arch/ubicom32/kernel/os_node.c -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ */ -+#include "linux/types.h" -+#include "linux/linkage.h" -+#include "linux/uts.h" -+#include "linux/utsrelease.h" -+#include "linux/version.h" -+#include <asm/ocm_size.h> -+#include <asm/devtree.h> -+#include <asm/ip5000.h> -+ -+extern asmlinkage void *_start; -+ -+/* -+ * This file provides static information to the boot code allowing it to decide -+ * if the os is compatible. Thus hopefully enabling the boot code to prevent -+ * accidentally booting a kernel that has no hope of running. -+ */ -+struct os_node { -+ struct devtree_node node; -+ unsigned long version; /* Always 1 */ -+ unsigned long entry_point; -+ const char os_name[32]; /* For diagnostic purposes only */ -+ const char os_version_str[32]; -+ unsigned long os_version_num; -+ unsigned long expected_ocm_code_start;/* OS Code */ -+ unsigned long expected_ocm_data_end; /* OS Data */ -+ unsigned long expected_ram_start; -+ unsigned long expected_ram_end; -+ unsigned long arch_version; -+}; -+ -+ -+/* -+ * The os_node is only referenced by head.S and should never be modified at -+ * run-time. -+ */ -+asmlinkage const struct os_node _os_node = { -+ .node = { -+ .next = NULL, -+ .name = { "OS" }, -+ .magic = 0x10203040, -+ }, -+ .version = 0x10001, -+ .entry_point = (unsigned long)&_start, -+#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE -+ .expected_ocm_code_start = OCMSTART + APP_OCM_CODE_SIZE, -+ .expected_ocm_data_end = OCMEND - APP_OCM_DATA_SIZE, -+#else -+ .expected_ocm_code_start = OCMEND, -+ .expected_ocm_data_end = OCMEND, -+#endif -+ .os_name = { UTS_SYSNAME }, -+ .os_version_str = { UTS_RELEASE }, -+ .os_version_num = LINUX_VERSION_CODE, -+ .expected_ram_start = CONFIG_KERNELBASE, -+ .expected_ram_end = CONFIG_RAMBASE + CONFIG_RAMSIZE, -+ .arch_version = UBICOM32_ARCH_VERSION -+}; ---- /dev/null -+++ b/arch/ubicom32/kernel/process.c -@@ -0,0 +1,494 @@ -+/* -+ * arch/ubicom32/kernel/process.c -+ * Ubicom32 architecture-dependent process handling. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1995 Hamish Macdonald -+ * -+ * 68060 fixes by Jesper Skov -+ * -+ * uClinux changes -+ * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+/* -+ * This file handles the architecture-dependent parts of process handling.. -+ */ -+ -+#include <linux/module.h> -+#include <linux/errno.h> -+#include <linux/sched.h> -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/smp.h> -+#include <linux/smp_lock.h> -+#include <linux/stddef.h> -+#include <linux/unistd.h> -+#include <linux/ptrace.h> -+#include <linux/slab.h> -+#include <linux/user.h> -+#include <linux/a.out.h> -+#include <linux/interrupt.h> -+#include <linux/reboot.h> -+#include <linux/fs.h> -+#include <linux/pm.h> -+ -+#include <linux/uaccess.h> -+#include <asm/system.h> -+#include <asm/traps.h> -+#include <asm/machdep.h> -+#include <asm/setup.h> -+#include <asm/pgtable.h> -+#include <asm/ip5000.h> -+#include <asm/range-protect.h> -+ -+asmlinkage void ret_from_fork(void); -+ -+void (*pm_power_off)(void) = machine_power_off; -+EXPORT_SYMBOL(pm_power_off); -+ -+/* machine-dependent / hardware-specific power functions */ -+void (*mach_reset)(void); -+void (*mach_halt)(void); -+void (*mach_power_off)(void); -+ -+/* -+ * cpu_idle() -+ * The idle thread. -+ * -+ * Our idle loop suspends and is woken up by a timer interrupt. -+ */ -+void cpu_idle(void) -+{ -+ while (1) { -+ local_irq_disable(); -+ while (!need_resched()) { -+ local_irq_enable(); -+ thread_suspend(); -+ local_irq_disable(); -+ } -+ local_irq_enable(); -+ preempt_enable_no_resched(); -+ schedule(); -+ preempt_disable(); -+ } -+} -+ -+/* -+ * dump_fpu() -+ * -+ * Fill in the fpu structure for a core dump. (just a stub as we don't have -+ * an fpu) -+ */ -+int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpregs) -+{ -+ return 1; -+} -+ -+/* -+ * machine_restart() -+ * Resets the system. -+ */ -+void machine_restart(char *__unused) -+{ -+ /* -+ * Disable all threads except myself. We can do this -+ * directly without needing to call smp_send_stop -+ * because we have a unique architecture where -+ * one thread can disable one or more other threads. -+ */ -+ thread_disable_others(); -+ -+ /* -+ * Call the hardware-specific machine reset function. -+ */ -+ if (mach_reset) { -+ mach_reset(); -+ } -+ -+ printk(KERN_EMERG "System Restarting\n"); -+ -+ /* -+ * Set watchdog to trigger (after 1ms delay) (12 Mhz is the fixed OSC) -+ */ -+ UBICOM32_IO_TIMER->tkey = TIMER_TKEYVAL; -+ UBICOM32_IO_TIMER->wdcom = UBICOM32_IO_TIMER->mptval + -+ (12000000 / 1000); -+ UBICOM32_IO_TIMER->wdcfg = 0; -+ UBICOM32_IO_TIMER->tkey = 0; -+ -+ /* -+ * Wait for watchdog -+ */ -+ asm volatile ( -+ " move.4 MT_EN, #0 \n\t" -+ " pipe_flush 0 \n\t" -+ ); -+ -+ local_irq_disable(); -+ for (;;) { -+ thread_suspend(); -+ } -+} -+ -+/* -+ * machine_halt() -+ * Halt the machine. -+ * -+ * Similar to machine_power_off, but don't shut off power. Add code -+ * here to freeze the system for e.g. post-mortem debug purpose when -+ * possible. This halt has nothing to do with the idle halt. -+ */ -+void machine_halt(void) -+{ -+ /* -+ * Disable all threads except myself. We can do this -+ * directly without needing to call smp_send_stop -+ * because we have a unique architecture where -+ * one thread can disable one or more other threads. -+ */ -+ thread_disable_others(); -+ -+ /* -+ * Call the hardware-specific machine halt function. -+ */ -+ if (mach_halt) { -+ mach_halt(); -+ } -+ -+ printk(KERN_EMERG "System Halted, OK to turn off power\n"); -+ local_irq_disable(); -+ for (;;) { -+ thread_suspend(); -+ } -+} -+ -+/* -+ * machine_power_off() -+ * Turn the power off, if a power off handler is defined, otherwise, spin -+ * endlessly. -+ */ -+void machine_power_off(void) -+{ -+ /* -+ * Disable all threads except myself. We can do this -+ * directly without needing to call smp_send_stop -+ * because we have a unique architecture where -+ * one thread can disable one or more other threads. -+ */ -+ thread_disable_others(); -+ -+ /* -+ * Call the hardware-specific machine power off function. -+ */ -+ if (mach_power_off) { -+ mach_power_off(); -+ } -+ -+ printk(KERN_EMERG "System Halted, OK to turn off power\n"); -+ local_irq_disable(); -+ for (;;) { -+ thread_suspend(); -+ } -+} -+ -+/* -+ * show_regs() -+ * Print out all of the registers. -+ */ -+void show_regs(struct pt_regs *regs) -+{ -+ unsigned int i; -+ -+ printk(KERN_NOTICE "regs: %p, tid: %d\n", -+ (void *)regs, -+ thread_get_self()); -+ -+ printk(KERN_NOTICE "pc: %08x, previous_pc: %08x\n\n", -+ (unsigned int)regs->pc, -+ (unsigned int)regs->previous_pc); -+ -+ printk(KERN_NOTICE "Data registers\n"); -+ for (i = 0; i < 16; i++) { -+ printk("D%02d: %08x, ", i, (unsigned int)regs->dn[i]); -+ if ((i % 4) == 3) { -+ printk("\n"); -+ } -+ } -+ printk("\n"); -+ -+ printk(KERN_NOTICE "Address registers\n"); -+ for (i = 0; i < 8; i++) { -+ printk("A%02d: %08x, ", i, (unsigned int)regs->an[i]); -+ if ((i % 4) == 3) { -+ printk("\n"); -+ } -+ } -+ printk("\n"); -+ -+ printk(KERN_NOTICE "acc0: %08x-%08x, acc1: %08x-%08x\n", -+ (unsigned int)regs->acc0[1], -+ (unsigned int)regs->acc0[0], -+ (unsigned int)regs->acc1[1], -+ (unsigned int)regs->acc1[0]); -+ -+ printk(KERN_NOTICE "mac_rc16: %08x, source3: %08x\n", -+ (unsigned int)regs->mac_rc16, -+ (unsigned int)regs->source3); -+ -+ printk(KERN_NOTICE "inst_cnt: %08x, csr: %08x\n", -+ (unsigned int)regs->inst_cnt, -+ (unsigned int)regs->csr); -+ -+ printk(KERN_NOTICE "int_mask0: %08x, int_mask1: %08x\n", -+ (unsigned int)regs->int_mask0, -+ (unsigned int)regs->int_mask1); -+ -+ printk(KERN_NOTICE "frame_type: %d, nesting_level: %d, thread_type %d\n\n", -+ (int)regs->frame_type, -+ (int)regs->nesting_level, -+ (int)regs->thread_type); -+} -+ -+/* -+ * kernel_thread_helper() -+ * On execution d0 will be 0, d1 will be the argument to be passed to the -+ * kernel function. d2 contains the kernel function that needs to get -+ * called. d3 will contain address to do_exit which need to get moved -+ * into a5. On return from fork the child thread d0 will be 0. We call -+ * this dummy function which in turn loads the argument -+ */ -+asmlinkage void kernel_thread_helper(void); -+ -+/* -+ * kernel_thread() -+ * Create a kernel thread -+ */ -+int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) -+{ -+ struct pt_regs regs; -+ -+ memset(®s, 0, sizeof(regs)); -+ -+ regs.dn[1] = (unsigned long)arg; -+ regs.dn[2] = (unsigned long)fn; -+ regs.dn[3] = (unsigned long)do_exit; -+ regs.an[5] = (unsigned long)kernel_thread_helper; -+ regs.pc = (unsigned long)kernel_thread_helper; -+ regs.nesting_level = 0; -+ regs.thread_type = KERNEL_THREAD; -+ -+ return do_fork(flags | CLONE_VM | CLONE_UNTRACED, -+ 0, ®s, 0, NULL, NULL); -+} -+EXPORT_SYMBOL(kernel_thread); -+ -+/* -+ * flush_thread() -+ * XXX todo -+ */ -+void flush_thread(void) -+{ -+ /* XXX todo */ -+} -+ -+/* -+ * sys_fork() -+ * Not implemented on no-mmu. -+ */ -+asmlinkage int sys_fork(struct pt_regs *regs) -+{ -+ /* fork almost works, enough to trick you into looking elsewhere :-( */ -+ return -EINVAL; -+} -+ -+/* -+ * sys_vfork() -+ * By the time we get here, the non-volatile registers have also been saved -+ * on the stack. We do some ugly pointer stuff here.. (see also copy_thread -+ * which does context copy). -+ */ -+asmlinkage int sys_vfork(struct pt_regs *regs) -+{ -+ unsigned long old_sp = regs->an[7]; -+ unsigned long old_a5 = regs->an[5]; -+ unsigned long old_return_address; -+ long do_fork_return; -+ -+ /* -+ * Read the old retrun address from the stack. -+ */ -+ if (copy_from_user(&old_return_address, -+ (void *)old_sp, sizeof(unsigned long))) { -+ force_sig(SIGSEGV, current); -+ return 0; -+ } -+ -+ /* -+ * Pop the vfork call frame by setting a5 and pc to the old_return -+ * address and incrementing the stack pointer by 4. -+ */ -+ regs->an[5] = old_return_address; -+ regs->pc = old_return_address; -+ regs->an[7] += 4; -+ -+ do_fork_return = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, -+ regs->an[7], regs, 0, NULL, NULL); -+ -+ /* -+ * Now we have to test if the return code is an error. If it is an error -+ * then restore the frame and we will execute error processing in user -+ * space. Other wise the child and the parent will return to the correct -+ * places. -+ */ -+ if ((unsigned long)(do_fork_return) >= (unsigned long)(-125)) { -+ /* -+ * Error case. We need to restore the frame. -+ */ -+ regs->an[5] = old_a5; -+ regs->pc = old_a5; -+ regs->an[7] = old_sp; -+ } -+ -+ return do_fork_return; -+} -+ -+/* -+ * sys_clone() -+ * creates a child thread. -+ */ -+asmlinkage int sys_clone(unsigned long clone_flags, -+ unsigned long newsp, -+ struct pt_regs *regs) -+{ -+ if (!newsp) -+ newsp = regs->an[7]; -+ return do_fork(clone_flags, newsp, regs, 0, -+ NULL, NULL); -+} -+ -+/* -+ * copy_thread() -+ * low level thread copy, only used by do_fork in kernel/fork.c -+ */ -+int copy_thread(int nr, unsigned long clone_flags, -+ unsigned long usp, unsigned long topstk, -+ struct task_struct *p, struct pt_regs *regs) -+{ -+ struct pt_regs *childregs; -+ -+ childregs = (struct pt_regs *) -+ (task_stack_page(p) + THREAD_SIZE - 8) - 1; -+ -+ *childregs = *regs; -+ -+ /* -+ * Set return value for child to be 0. -+ */ -+ childregs->dn[0] = 0; -+ -+ if (usp) -+ childregs->an[7] = usp; -+ else -+ childregs->an[7] = (unsigned long)task_stack_page(p) + -+ THREAD_SIZE - 8; -+ -+ /* -+ * Set up the switch_to frame to return to "ret_from_fork" -+ */ -+ p->thread.a5 = (unsigned long)ret_from_fork; -+ p->thread.sp = (unsigned long)childregs; -+ -+ return 0; -+} -+ -+/* -+ * sys_execve() -+ * executes a new program. -+ */ -+asmlinkage int sys_execve(char *name, char **argv, -+ char **envp, struct pt_regs *regs) -+{ -+ int error; -+ char *filename; -+ -+ lock_kernel(); -+ filename = getname(name); -+ error = PTR_ERR(filename); -+ if (IS_ERR(filename)) -+ goto out; -+ error = do_execve(filename, argv, envp, regs); -+ putname(filename); -+ asm (" .global sys_execve_complete\n" -+ " sys_execve_complete:"); -+out: -+ unlock_kernel(); -+ return error; -+} -+ -+/* -+ * Return saved PC of a blocked thread. -+ */ -+unsigned long thread_saved_pc(struct task_struct *tsk) -+{ -+ return tsk->thread.a5; -+} -+ -+ -+unsigned long get_wchan(struct task_struct *p) -+{ -+ unsigned long pc; -+ -+ /* -+ * If we don't have a process, or it is not the current -+ * one or not RUNNING, it makes no sense to ask for a -+ * wchan. -+ */ -+ if (!p || p == current || p->state == TASK_RUNNING) -+ return 0; -+ -+ /* -+ * TODO: If the process is in the middle of schedule, we -+ * are supposed to do something different but for now we -+ * will return the same thing in both situations. -+ */ -+ pc = thread_saved_pc(p); -+ if (in_sched_functions(pc)) -+ return pc; -+ return pc; -+} -+ -+/* -+ * __switch_to is the function that implements the contex save and -+ * switch within the kernel. Since this is a function call very few -+ * registers have to be saved to pull this off. d0 holds prev and we -+ * want to preserve it. prev_switch is a pointer to task->thread -+ * structure. This is where we will save the register state. next_switch -+ * is pointer to the next task's thread structure that holds the -+ * registers. -+ */ -+asmlinkage void *__switch_to(struct task_struct *prev, -+ struct thread_struct *prev_switch, -+ struct thread_struct *next_switch) -+ __attribute__((naked)); ---- /dev/null -+++ b/arch/ubicom32/kernel/processor.c -@@ -0,0 +1,258 @@ -+/* -+ * arch/ubicom32/kernel/processor.c -+ * Ubicom32 architecture processor info implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/sched.h> -+#include <linux/interrupt.h> -+#include <linux/irq.h> -+#include <linux/profile.h> -+#include <linux/clocksource.h> -+#include <linux/types.h> -+#include <linux/seq_file.h> -+#include <linux/delay.h> -+#include <linux/cpu.h> -+#include <asm/devtree.h> -+#include <asm/processor.h> -+#include <asm/cpu.h> -+ -+struct procnode { -+ struct devtree_node dn; -+ unsigned int threads; -+ unsigned int timers; -+ unsigned int frequency; -+ unsigned int interrupt0; -+ unsigned int interrupt1; -+ void *socm; -+ void *eocm; -+ void *sdram; -+ void *edram; -+}; -+ -+struct procnode *pn; -+ -+/* -+ * show_processorinfo() -+ * Print the actual processor information. -+ */ -+static void show_processorinfo(struct seq_file *m) -+{ -+ char *cpu, *mmu, *fpu; -+ unsigned int clockfreq; -+ unsigned int chipid; -+ -+ cpu = CPU; -+ mmu = "none"; -+ fpu = "none"; -+ -+ asm volatile ( -+ "move.4 %0, CHIP_ID \n\t" -+ : "=r" (chipid) -+ ); -+ -+ /* -+ * General Processor Information. -+ */ -+ seq_printf(m, "Vendor:\t\t%s\n", "Ubicom"); -+ seq_printf(m, "CPU:\t\t%s\n", cpu); -+ seq_printf(m, "MMU:\t\t%s\n", mmu); -+ seq_printf(m, "FPU:\t\t%s\n", fpu); -+ seq_printf(m, "Arch:\t\t%hx\n", chipid >> 16); -+ seq_printf(m, "Rev:\t\t%hx\n", (chipid & 0xffff)); -+ -+ /* -+ * Now compute the clock frequency in Mhz. -+ */ -+ clockfreq = processor_frequency(); -+ seq_printf(m, "Clock Freq:\t%u.%1u MHz\n", -+ clockfreq / 1000000, -+ (clockfreq / 100000) % 10); -+ seq_printf(m, "BogoMips:\t%lu.%02lu\n", -+ (loops_per_jiffy * HZ) / 500000, -+ ((loops_per_jiffy * HZ) / 5000) % 100); -+ seq_printf(m, "Calibration:\t%lu loops\n", (loops_per_jiffy * HZ)); -+} -+ -+/* -+ * show_cpuinfo() -+ * Get CPU information for use by the procfs. -+ */ -+static int show_cpuinfo(struct seq_file *m, void *v) -+{ -+ unsigned long n = (unsigned long)v - 1; -+ -+#if defined(CONFIG_SMP) -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, n); -+#endif -+ -+ /* -+ * Print the general processor information on the first -+ * call. -+ */ -+ if (n == 0) { -+ show_processorinfo(m); -+ } -+ -+#if defined(CONFIG_SMP) -+ /* -+ * For each hwthread, print if this hwthread is running Linux -+ * or is an I/O thread. -+ */ -+ if (cpu_isset(n, cpu_online_map)) { -+ seq_printf(m, "cpu[%02lu]:\tthread id - %lu\n", n, p->tid); -+ } else { -+ seq_printf(m, "cpu[%02lu]:\toff-line\n", n); -+ } -+#endif -+ return 0; -+ -+} -+ -+static void *c_start(struct seq_file *m, loff_t *pos) -+{ -+ unsigned long i = *pos; -+ -+ return i < NR_CPUS ? (void *)(i + 1) : NULL; -+} -+ -+static void *c_next(struct seq_file *m, void *v, loff_t *pos) -+{ -+ ++*pos; -+ return c_start(m, pos); -+} -+ -+static void c_stop(struct seq_file *m, void *v) -+{ -+} -+ -+const struct seq_operations cpuinfo_op = { -+ .start = c_start, -+ .next = c_next, -+ .stop = c_stop, -+ .show = show_cpuinfo, -+}; -+ -+/* -+ * processor_timers() -+ * Returns the timers available to Linux. -+ */ -+unsigned int processor_timers(void) -+{ -+ if (!pn) { -+ return 0; -+ } -+ return pn->timers; -+} -+ -+/* -+ * processor_threads() -+ * Returns the threads available to Linux. -+ */ -+unsigned int processor_threads(void) -+{ -+ if (!pn) { -+ return 0; -+ } -+ return pn->threads; -+} -+ -+/* -+ * processor_frequency() -+ * Returns the frequency of the system clock. -+ */ -+unsigned int processor_frequency(void) -+{ -+ if (!pn) { -+ return 0; -+ } -+ return pn->frequency; -+} -+EXPORT_SYMBOL(processor_frequency); -+ -+/* -+ * processor_interrupts() -+ * Return the interrupts that are setup at boot time. -+ */ -+int processor_interrupts(unsigned int *int0, unsigned int *int1) -+{ -+ if (!pn) { -+ return -EFAULT; -+ } -+ -+ if (int0) { -+ *int0 = pn->interrupt0; -+ } -+ -+ if (int1) { -+ *int1 = pn->interrupt1; -+ } -+ return 0; -+} -+ -+/* -+ * processor_ocm() -+ * Returns the OCM available to Linux. -+ */ -+int processor_ocm(void **socm, void **eocm) -+{ -+ if (!pn) { -+ return -ENOSYS; -+ } -+ -+ *socm = pn->socm; -+ *eocm = pn->eocm; -+ return 0; -+} -+ -+/* -+ * processor_dram() -+ * Returns the dram available to Linux. -+ */ -+int processor_dram(void **sdram, void **edram) -+{ -+ if (!pn) { -+ return -ENOSYS; -+ } -+ -+ *sdram = pn->sdram; -+ *edram = pn->edram; -+ return 0; -+} -+ -+void __init processor_init(void) -+{ -+ /* -+ * If we do not have a trap node in the device tree, we leave the fault -+ * handling to the underlying hardware. -+ */ -+ pn = (struct procnode *)devtree_find_node("processor"); -+ if (!pn) { -+ printk(KERN_WARNING "processor node not found\n"); -+ return; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/ptrace.c -@@ -0,0 +1,275 @@ -+/* -+ * arch/ubicom32/kernel/ptrace.c -+ * Ubicom32 architecture ptrace implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * (C) 1994 by Hamish Macdonald -+ * Taken from linux/kernel/ptrace.c and modified for M680x0. -+ * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/smp.h> -+#include <linux/errno.h> -+#include <linux/ptrace.h> -+#include <linux/user.h> -+#include <linux/signal.h> -+#include <linux/uaccess.h> -+ -+#include <asm/page.h> -+#include <asm/pgtable.h> -+#include <asm/system.h> -+#include <asm/cacheflush.h> -+#include <asm/processor.h> -+ -+/* -+ * ptrace_getregs() -+ * -+ * Get all user integer registers. -+ */ -+static inline int ptrace_getregs(struct task_struct *task, void __user *uregs) -+{ -+ struct pt_regs *regs = task_pt_regs(task); -+ return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0; -+} -+ -+/* -+ * ptrace_get_reg() -+ * -+ * Get contents of register REGNO in task TASK. -+ */ -+static unsigned long ptrace_get_reg(struct task_struct *task, int regno) -+{ -+ if (regno < sizeof(struct pt_regs)) { -+ struct pt_regs *pt_regs = task_pt_regs(task); -+ return *(unsigned long *)((long) pt_regs + regno); -+ } -+ -+ return -EIO; -+} -+ -+/* -+ * ptrace_put_reg() -+ * Write contents of register REGNO in task TASK. -+ */ -+static int ptrace_put_reg(struct task_struct *task, int regno, -+ unsigned long data) -+{ -+ if (regno <= sizeof(struct pt_regs) && regno != PT_FRAME_TYPE) { -+ struct pt_regs *pt_regs = task_pt_regs(task); -+ *(unsigned long *)((long) pt_regs + regno) = data; -+ return 0; -+ } -+ return -EIO; -+} -+ -+/* -+ * ptrace_disable_single_step() -+ * Disable Single Step -+ */ -+static int ptrace_disable_single_step(struct task_struct *task) -+{ -+ /* -+ * Single Step not yet implemented, so must always be disabled -+ */ -+ return 0; -+} -+ -+/* -+ * ptrace_disable() -+ * Make sure the single step bit is not set. -+ * Called by kernel/ptrace.c when detaching.. -+ */ -+void ptrace_disable(struct task_struct *child) -+{ -+ ptrace_disable_single_step(child); -+} -+ -+/* -+ * arch_ptrace() -+ * architecture specific ptrace routine. -+ */ -+long arch_ptrace(struct task_struct *child, long request, long addr, long data) -+{ -+ int ret; -+ switch (request) { -+ /* when I and D space are separate, these will need to be fixed. */ -+ case PTRACE_PEEKTEXT: /* read word at location addr. */ -+ case PTRACE_PEEKDATA: -+ ret = generic_ptrace_peekdata(child, addr, data); -+ break; -+ -+ /* read the word at location addr in the USER area. */ -+ case PTRACE_PEEKUSR: { -+ unsigned long tmp; -+ -+ ret = -EIO; -+ if (((unsigned long) addr > PT_INTERP_FDPIC_LOADMAP) -+ || (addr & 3)) -+ break; -+ -+ tmp = 0; /* Default return condition */ -+ -+ ret = -EIO; -+ if (addr < sizeof(struct pt_regs)) { -+ tmp = ptrace_get_reg(child, addr); -+ } else if (addr == PT_TEXT_ADDR) { -+ tmp = child->mm->start_code; -+ } else if (addr == PT_TEXT_END_ADDR) { -+ tmp = child->mm->end_code; -+ } else if (addr == PT_DATA_ADDR) { -+ tmp = child->mm->start_data; -+ } else if (addr == PT_EXEC_FDPIC_LOADMAP) { -+#ifdef CONFIG_BINFMT_ELF_FDPIC -+ tmp = child->mm->context.exec_fdpic_loadmap; -+#endif -+ } else if (addr == PT_INTERP_FDPIC_LOADMAP) { -+#ifdef CONFIG_BINFMT_ELF_FDPIC -+ tmp = child->mm->context.interp_fdpic_loadmap; -+#endif -+ } else { -+ break; -+ } -+ -+ ret = put_user(tmp, (unsigned long *)data); -+ break; -+ } -+ -+ case PTRACE_POKETEXT: /* write the word at location addr. */ -+ case PTRACE_POKEDATA: -+ ret = generic_ptrace_pokedata(child, addr, data); -+ -+ /* -+ * If we just changed some code so we need to -+ * correct the caches -+ */ -+ if (request == PTRACE_POKETEXT && ret == 0) { -+ flush_icache_range(addr, addr + 4); -+ } -+ break; -+ -+ case PTRACE_POKEUSR: /* write the word at location addr -+ * in the USER area */ -+ ret = -EIO; -+ -+ if (((unsigned long) addr > PT_DATA_ADDR) || (addr & 3)) -+ break; -+ -+ if (addr < sizeof(struct pt_regs)) { -+ ret = ptrace_put_reg(child, addr, data); -+ } -+ break; -+ -+ case PTRACE_SYSCALL: /* continue and stop at next (return from) -+ * syscall */ -+ case PTRACE_CONT: { /* restart after signal. */ -+ -+ ret = -EIO; -+ if (!valid_signal(data)) -+ break; -+ if (request == PTRACE_SYSCALL) -+ set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); -+ else -+ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); -+ child->exit_code = data; -+ /* make sure the single step bit is not set. */ -+ ptrace_disable_single_step(child); -+ wake_up_process(child); -+ ret = 0; -+ break; -+ } -+ -+ /* -+ * make the child exit. Best I can do is send it a sigkill. -+ * perhaps it should be put in the status that it wants to exit. -+ */ -+ case PTRACE_KILL: { -+ ret = 0; -+ if (child->exit_state == EXIT_ZOMBIE) /* already dead */ -+ break; -+ child->exit_code = SIGKILL; -+ /* make sure the single step bit is not set. */ -+ ptrace_disable_single_step(child); -+ wake_up_process(child); -+ break; -+ } -+ -+ case PTRACE_DETACH: /* detach a process that was attached. */ -+ ret = ptrace_detach(child, data); -+ break; -+ -+ case PTRACE_GETREGS: /* Get all gp regs from the child. */ -+ ptrace_getregs(child, (unsigned long *)data); -+ ret = 0; -+ break; -+ -+ case PTRACE_SETREGS: { /* Set all gp regs in the child. */ -+ int i; -+ unsigned long tmp; -+ int count = sizeof(struct pt_regs) / sizeof(unsigned long); -+ for (i = 0; i < count; i++) { -+ if (get_user(tmp, (unsigned long *) data)) { -+ ret = -EFAULT; -+ break; -+ } -+ ptrace_put_reg(child, sizeof(unsigned long) * i, tmp); -+ data += sizeof(long); -+ } -+ ret = 0; -+ break; -+ } -+ -+ default: -+ return ptrace_request(child, request, addr, data); -+ break; -+ } -+ return ret; -+} -+/* -+ * syscall_trace -+ * -+ * called by syscall enter/exit when the TIF_SYSCALL_TRACE bit is set. -+ */ -+asmlinkage void syscall_trace(void) -+{ -+ struct task_struct *cur = current; -+ if (!test_thread_flag(TIF_SYSCALL_TRACE)) -+ return; -+ if (!(cur->ptrace & PT_PTRACED)) -+ return; -+ ptrace_notify(SIGTRAP | ((cur->ptrace & PT_TRACESYSGOOD) -+ ? 0x80 : 0)); -+ /* -+ * this isn't the same as continuing with a signal, but it will do -+ * for normal use. strace only continues with a signal if the -+ * stopping signal is not SIGTRAP. -brl -+ */ -+ if (cur->exit_code) { -+ send_sig(cur->exit_code, current, 1); -+ current->exit_code = 0; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/semaphore.c -@@ -0,0 +1,159 @@ -+/* -+ * arch/ubicom32/kernel/semaphore.c -+ * Ubicom32 architecture semaphore implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * Generic semaphore code. Buyer beware. Do your own -+ * specific changes in <asm/semaphore-helper.h> -+ */ -+ -+#include <linux/sched.h> -+#include <linux/err.h> -+#include <linux/init.h> -+#include <asm/semaphore-helper.h> -+ -+#ifndef CONFIG_RMW_INSNS -+spinlock_t semaphore_wake_lock; -+#endif -+ -+/* -+ * Semaphores are implemented using a two-way counter: -+ * The "count" variable is decremented for each process -+ * that tries to sleep, while the "waking" variable is -+ * incremented when the "up()" code goes to wake up waiting -+ * processes. -+ * -+ * Notably, the inline "up()" and "down()" functions can -+ * efficiently test if they need to do any extra work (up -+ * needs to do something only if count was negative before -+ * the increment operation. -+ * -+ * waking_non_zero() (from asm/semaphore.h) must execute -+ * atomically. -+ * -+ * When __up() is called, the count was negative before -+ * incrementing it, and we need to wake up somebody. -+ * -+ * This routine adds one to the count of processes that need to -+ * wake up and exit. ALL waiting processes actually wake up but -+ * only the one that gets to the "waking" field first will gate -+ * through and acquire the semaphore. The others will go back -+ * to sleep. -+ * -+ * Note that these functions are only called when there is -+ * contention on the lock, and as such all this is the -+ * "non-critical" part of the whole semaphore business. The -+ * critical part is the inline stuff in <asm/semaphore.h> -+ * where we want to avoid any extra jumps and calls. -+ */ -+void __up(struct semaphore *sem) -+{ -+ wake_one_more(sem); -+ wake_up(&sem->wait); -+} -+ -+/* -+ * Perform the "down" function. Return zero for semaphore acquired, -+ * return negative for signalled out of the function. -+ * -+ * If called from __down, the return is ignored and the wait loop is -+ * not interruptible. This means that a task waiting on a semaphore -+ * using "down()" cannot be killed until someone does an "up()" on -+ * the semaphore. -+ * -+ * If called from __down_interruptible, the return value gets checked -+ * upon return. If the return value is negative then the task continues -+ * with the negative value in the return register (it can be tested by -+ * the caller). -+ * -+ * Either form may be used in conjunction with "up()". -+ * -+ */ -+ -+ -+#define DOWN_HEAD(task_state) \ -+ \ -+ \ -+ current->state = (task_state); \ -+ add_wait_queue(&sem->wait, &wait); \ -+ \ -+ /* \ -+ * Ok, we're set up. sem->count is known to be less than zero \ -+ * so we must wait. \ -+ * \ -+ * We can let go the lock for purposes of waiting. \ -+ * We re-acquire it after awaking so as to protect \ -+ * all semaphore operations. \ -+ * \ -+ * If "up()" is called before we call waking_non_zero() then \ -+ * we will catch it right away. If it is called later then \ -+ * we will have to go through a wakeup cycle to catch it. \ -+ * \ -+ * Multiple waiters contend for the semaphore lock to see \ -+ * who gets to gate through and who has to wait some more. \ -+ */ \ -+ for (;;) { -+ -+#define DOWN_TAIL(task_state) \ -+ current->state = (task_state); \ -+ } \ -+ current->state = TASK_RUNNING; \ -+ remove_wait_queue(&sem->wait, &wait); -+ -+void __sched __down(struct semaphore *sem) -+{ -+ DECLARE_WAITQUEUE(wait, current); -+ -+ DOWN_HEAD(TASK_UNINTERRUPTIBLE) -+ if (waking_non_zero(sem)) -+ break; -+ schedule(); -+ DOWN_TAIL(TASK_UNINTERRUPTIBLE) -+} -+ -+int __sched __down_interruptible(struct semaphore *sem) -+{ -+ DECLARE_WAITQUEUE(wait, current); -+ int ret = 0; -+ -+ DOWN_HEAD(TASK_INTERRUPTIBLE) -+ -+ ret = waking_non_zero_interruptible(sem, current); -+ if (ret) { -+ if (ret == 1) -+ /* ret != 0 only if we get interrupted -arca */ -+ ret = 0; -+ break; -+ } -+ schedule(); -+ DOWN_TAIL(TASK_INTERRUPTIBLE) -+ return ret; -+} -+ -+int __down_trylock(struct semaphore *sem) -+{ -+ return waking_non_zero_trylock(sem); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/setup.c -@@ -0,0 +1,189 @@ -+/* -+ * arch/ubicom32/kernel/setup.c -+ * Ubicom32 architecture-dependent parts of system setup. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com) -+ * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org> -+ * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com} -+ * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> -+ * Copyright (C) 1995 Hamish Macdonald -+ * Copyright (C) 2000 Lineo Inc. (www.lineo.com) -+ * Copyright (C) 2001 Lineo, Inc. <www.lineo.com> -+ * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/delay.h> -+#include <linux/interrupt.h> -+#include <linux/fb.h> -+#include <linux/module.h> -+#include <linux/console.h> -+#include <linux/errno.h> -+#include <linux/string.h> -+#include <linux/bootmem.h> -+#include <linux/seq_file.h> -+#include <linux/init.h> -+ -+#include <asm/devtree.h> -+#include <asm/setup.h> -+#include <asm/irq.h> -+#include <asm/machdep.h> -+#include <asm/pgtable.h> -+#include <asm/pgalloc.h> -+#include <asm/ubicom32-common.h> -+#include <asm/processor.h> -+#include <asm/bootargs.h> -+#include <asm/thread.h> -+ -+unsigned long memory_start; -+EXPORT_SYMBOL(memory_start); -+ -+unsigned long memory_end; -+EXPORT_SYMBOL(memory_end); -+ -+static char __initdata command_line[COMMAND_LINE_SIZE]; -+#ifdef CONFIG_CMDLINE_BOOL -+static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE; -+#endif -+ -+extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; -+ -+/* -+ * setup_arch() -+ * Setup the architecture dependent portions of the system. -+ */ -+void __init setup_arch(char **cmdline_p) -+{ -+ int bootmap_size; -+ -+ processor_init(); -+ bootargs_init(); -+ -+ /* -+ * TODO: The memory regions should really come from the -+ * processor node. -+ */ -+ memory_start = PAGE_ALIGN(((unsigned long)&_end)); -+ memory_end = CONFIG_RAMBASE+CONFIG_RAMSIZE; -+ -+ init_mm.start_code = (unsigned long) &_stext; -+ init_mm.end_code = (unsigned long) &_etext; -+ init_mm.end_data = (unsigned long) &_edata; -+ init_mm.brk = (unsigned long) 0; -+ -+ strlcpy(boot_command_line, bootargs_get_cmdline(), COMMAND_LINE_SIZE); -+ -+#ifdef CONFIG_CMDLINE_BOOL -+#ifdef CONFIG_CMDLINE_OVERRIDE -+ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); -+#else -+ if (builtin_cmdline[0]) { -+ /* append boot loader cmdline to builtin */ -+ strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE); -+ strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE); -+ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); -+ } -+#endif -+#endif -+ -+ strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); -+ *cmdline_p = command_line; -+ -+ parse_early_param(); -+ -+ printk(KERN_INFO "%s Processor, Ubicom, Inc. <www.ubicom.com>\n", CPU); -+ -+#if defined(DEBUG) -+ printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " -+ "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, -+ (int) &_sdata, (int) &_edata, -+ (int) &_sbss, (int) &_ebss); -+ printk(KERN_DEBUG "MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ", -+ (int) &_ebss, (int) memory_start, -+ (int) memory_start, (int) memory_end); -+#endif -+ -+ /* Keep a copy of command line */ -+ *cmdline_p = &command_line[0]; -+ memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); -+ boot_command_line[COMMAND_LINE_SIZE-1] = 0; -+ -+#ifdef DEBUG -+ if (strlen(*cmdline_p)) -+ printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p); -+#endif -+ -+#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE) -+ conswitchp = &dummy_con; -+#endif -+ -+ /* -+ * If we have a device tree, see if we have the nodes we need. -+ */ -+ if (devtree) { -+ devtree_print(); -+ } -+ -+ /* -+ * From the arm initialization comment: -+ * -+ * This doesn't seem to be used by the Linux memory manager any -+ * more, but is used by ll_rw_block. If we can get rid of it, we -+ * also get rid of some of the stuff above as well. -+ * -+ * Note: max_low_pfn and max_pfn reflect the number of _pages_ in -+ * the system, not the maximum PFN. -+ */ -+ max_pfn = max_low_pfn = (memory_end - PAGE_OFFSET) >> PAGE_SHIFT; -+ -+ /* -+ * Give all the memory to the bootmap allocator, tell it to put the -+ * boot mem_map at the start of memory. -+ */ -+ bootmap_size = init_bootmem_node( -+ NODE_DATA(0), -+ memory_start >> PAGE_SHIFT, /* map goes here */ -+ PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ -+ memory_end >> PAGE_SHIFT); -+ /* -+ * Free the usable memory, we have to make sure we do not free -+ * the bootmem bitmap so we then reserve it after freeing it :-) -+ */ -+ free_bootmem(memory_start, memory_end - memory_start); -+ reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); -+ -+ /* -+ * Get kmalloc into gear. -+ */ -+ paging_init(); -+ -+ /* -+ * Fix up the thread_info structure, indicate this is a mainline Linux -+ * thread and setup the sw_ksp(). -+ */ -+ sw_ksp[thread_get_self()] = (unsigned int) current_thread_info(); -+ thread_set_mainline(thread_get_self()); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/signal.c -@@ -0,0 +1,458 @@ -+/* -+ * arch/ubicom32/kernel/signal.c -+ * Ubicom32 architecture signal handling implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1991, 1992 Linus Torvalds -+ * Linux/m68k support by Hamish Macdonald -+ * 68060 fixes by Jesper Skov -+ * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab -+ * mathemu support by Roman Zippel -+ * ++roman (07/09/96): implemented signal stacks -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * mathemu support by Roman Zippel -+ * (Note: fpstate in the signal context is completely ignored for the emulator -+ * and the internal floating point format is put on stack) -+ * -+ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on -+ * Atari :-) Current limitation: Only one sigstack can be active at one time. -+ * If a second signal with SA_ONSTACK set arrives while working on a sigstack, -+ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested -+ * signal handlers! -+ */ -+ -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/kernel.h> -+#include <linux/signal.h> -+#include <linux/syscalls.h> -+#include <linux/errno.h> -+#include <linux/wait.h> -+#include <linux/ptrace.h> -+#include <linux/unistd.h> -+#include <linux/stddef.h> -+#include <linux/highuid.h> -+#include <linux/tty.h> -+#include <linux/personality.h> -+#include <linux/binfmts.h> -+ -+#include <asm/setup.h> -+#include <asm/uaccess.h> -+#include <asm/pgtable.h> -+#include <asm/traps.h> -+#include <asm/ucontext.h> -+ -+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) -+ -+/* -+ * asm signal return handlers. -+ */ -+void ret_from_user_signal(void); -+void ret_from_user_rt_signal(void); -+asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs); -+ -+/* -+ * Common signal suspend implementation -+ */ -+static int signal_suspend(sigset_t *saveset, struct pt_regs *regs) -+{ -+ regs->dn[0] = -EINTR; -+ while (1) { -+ current->state = TASK_INTERRUPTIBLE; -+ schedule(); -+ if (!do_signal(saveset, regs)) { -+ continue; -+ } -+ /* -+ * If the current frame type is a signal trampoline we are -+ * actually going to call the signal handler so we return the -+ * desired d0 as the return value. -+ */ -+ if (regs->frame_type == UBICOM32_FRAME_TYPE_SIGTRAMP) { -+ return regs->dn[0]; -+ } -+ return -EINTR; -+ } -+ /* -+ * Should never get here -+ */ -+ BUG(); -+ return 0; -+} -+ -+/* -+ * Atomically swap in the new signal mask, and wait for a signal. -+ */ -+asmlinkage int do_sigsuspend(struct pt_regs *regs) -+{ -+ old_sigset_t mask = regs->dn[0]; -+ sigset_t saveset; -+ -+ mask &= _BLOCKABLE; -+ spin_lock_irq(¤t->sighand->siglock); -+ saveset = current->blocked; -+ siginitset(¤t->blocked, mask); -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->sighand->siglock); -+ -+ /* -+ * Call common handler -+ */ -+ return signal_suspend(&saveset, regs); -+} -+ -+asmlinkage int -+do_rt_sigsuspend(struct pt_regs *regs) -+{ -+ sigset_t *unewset = (sigset_t *)regs->dn[0]; -+ size_t sigsetsize = (size_t)regs->dn[1]; -+ sigset_t saveset, newset; -+ -+ /* XXX: Don't preclude handling different sized sigset_t's. */ -+ if (sigsetsize != sizeof(sigset_t)) -+ return -EINVAL; -+ -+ if (copy_from_user(&newset, unewset, sizeof(newset))) -+ return -EFAULT; -+ sigdelsetmask(&newset, ~_BLOCKABLE); -+ -+ spin_lock_irq(¤t->sighand->siglock); -+ saveset = current->blocked; -+ current->blocked = newset; -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->sighand->siglock); -+ -+ /* -+ * Call common handler -+ */ -+ return signal_suspend(&saveset, regs); -+} -+ -+asmlinkage int -+sys_sigaction(int sig, const struct old_sigaction *act, -+ struct old_sigaction *oact) -+{ -+ struct k_sigaction new_ka, old_ka; -+ int ret; -+ -+ if (act) { -+ old_sigset_t mask; -+ if (!access_ok(VERIFY_READ, act, sizeof(*act)) || -+ __get_user(new_ka.sa.sa_handler, &act->sa_handler) || -+ __get_user(new_ka.sa.sa_restorer, &act->sa_restorer)) -+ return -EFAULT; -+ __get_user(new_ka.sa.sa_flags, &act->sa_flags); -+ __get_user(mask, &act->sa_mask); -+ siginitset(&new_ka.sa.sa_mask, mask); -+ } -+ -+ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); -+ -+ if (!ret && oact) { -+ if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || -+ __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || -+ __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer)) -+ return -EFAULT; -+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags); -+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); -+ } -+ -+ return ret; -+} -+ -+asmlinkage int -+do_sys_sigaltstack(struct pt_regs *regs) -+{ -+ const stack_t *uss = (stack_t *) regs->dn[0]; -+ stack_t *uoss = (stack_t *)regs->dn[1]; -+ return do_sigaltstack(uss, uoss, regs->an[7]); -+} -+ -+/* -+ * fdpic_func_descriptor describes sa_handler when the application is FDPIC -+ */ -+struct fdpic_func_descriptor { -+ unsigned long text; -+ unsigned long GOT; -+}; -+ -+/* -+ * rt_sigframe is stored on the user stack immediately before (above) -+ * the signal handlers stack. -+ */ -+struct rt_sigframe -+{ -+ unsigned long syscall_number; /* This holds __NR_rt_sigreturn. */ -+ unsigned long restore_all_regs; /* This field gets set to 1 if the frame -+ * type is TRAP or INTERRUPT. */ -+ siginfo_t *info; -+ struct ucontext uc; -+ int sig; -+ void *pretcode; -+}; -+ -+/* -+ * Do a signal return; undo the signal stack. -+ */ -+asmlinkage int do_sigreturn(unsigned long __unused) -+{ -+ BUG(); -+ return 0; -+} -+ -+asmlinkage int do_rt_sigreturn(struct pt_regs *regs) -+{ -+ unsigned long usp = regs->an[7]; -+ struct rt_sigframe *frame = (struct rt_sigframe *)(usp); -+ sigset_t set; -+ -+ if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) -+ goto badframe; -+ if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) -+ goto badframe; -+ -+ sigdelsetmask(&set, ~_BLOCKABLE); -+ spin_lock_irq(¤t->sighand->siglock); -+ current->blocked = set; -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->sighand->siglock); -+ -+ if (copy_from_user(regs, &frame->uc.uc_mcontext, sizeof(struct pt_regs))) -+ goto badframe; -+ return regs->dn[0]; -+ -+badframe: -+ force_sig(SIGSEGV, current); -+ return 0; -+} -+ -+static inline void * -+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -+{ -+ unsigned long usp; -+ -+ /* Default to using normal stack. */ -+ usp = regs->an[7]; -+ -+ /* This is the X/Open sanctioned signal stack switching. */ -+ if (ka->sa.sa_flags & SA_ONSTACK) { -+ if (!sas_ss_flags(usp)) -+ usp = current->sas_ss_sp + current->sas_ss_size; -+ } -+ return (void *)((usp - frame_size) & ~0x3); -+} -+ -+/* -+ * signal_trampoline: Defined in ubicom32_syscall.S -+ */ -+asmlinkage void signal_trampoline(void)__attribute__((naked)); -+ -+static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, -+ sigset_t *set, struct pt_regs *regs) -+{ -+ struct rt_sigframe *frame; -+ int err = 0; -+ -+ frame = (struct rt_sigframe *) get_sigframe(ka, regs, sizeof(*frame)); -+ -+ /* -+ * The 'err |=' have been may criticized as bad code style, but I -+ * strongly suspect that we want this code to be fast. So for -+ * now it stays as is. -+ */ -+ err |= __put_user( ( (current_thread_info()->exec_domain) -+ && (current_thread_info()->exec_domain->signal_invmap) -+ && (sig < 32) ) -+ ? current_thread_info()->exec_domain->signal_invmap[sig] -+ : sig, &frame->sig); -+ err |= __put_user(info, &frame->info); -+ -+ /* Create the ucontext. */ -+ err |= __put_user(0, &frame->uc.uc_flags); -+ err |= __put_user(0, &frame->uc.uc_link); -+ err |= __put_user((void *)current->sas_ss_sp, -+ &frame->uc.uc_stack.ss_sp); -+ err |= __put_user(sas_ss_flags(regs->an[7]), -+ &frame->uc.uc_stack.ss_flags); -+ err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); -+ err |= __put_user(__NR_rt_sigreturn, &frame->syscall_number); -+ if ((regs->frame_type == UBICOM32_FRAME_TYPE_TRAP) || -+ (regs->frame_type == UBICOM32_FRAME_TYPE_INTERRUPT)) { -+ err |= __put_user(1, &frame->restore_all_regs); -+ } else { -+ err |= __put_user(0, &frame->restore_all_regs); -+ } -+ err |= copy_to_user (&frame->uc.uc_mcontext.sc_regs, regs, sizeof(struct pt_regs)); -+ err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); -+ -+ if (err) -+ goto give_sigsegv; -+ -+ /* -+ * Set up registers for signal handler NOTE: Do not modify dn[14], it -+ * contains the userspace tls pointer, so it important that it carries -+ * over to the signal handler. -+ */ -+ regs->an[7] = (unsigned long)frame; -+ regs->pc = (unsigned long) signal_trampoline; -+ regs->an[5] = (unsigned long) signal_trampoline; -+ regs->dn[0] = sig; -+ regs->dn[1] = (unsigned long) frame->info; -+ regs->dn[2] = (unsigned int) &frame->uc; -+ -+ /* -+ * If this is FDPIC then the signal handler is actually a function -+ * descriptor. -+ */ -+ if (current->personality & FDPIC_FUNCPTRS) { -+ struct fdpic_func_descriptor __user *funcptr = -+ (struct fdpic_func_descriptor *) ka->sa.sa_handler; -+ err |= __get_user(regs->dn[3], &funcptr->text); -+ err |= __get_user(regs->an[0], &funcptr->GOT); -+ if (err) -+ goto give_sigsegv; -+ -+ /* -+ * The funcdesc must be in a3 as this is required for the lazy -+ * resolver in ld.so, if the application is not FDPIC a3 is not -+ * used. -+ */ -+ regs->an[3] = (unsigned long) funcptr; -+ -+ } else { -+ regs->dn[3] = (unsigned long)ka->sa.sa_handler; -+ regs->an[0] = 0; -+ } -+ -+ regs->frame_type = UBICOM32_FRAME_TYPE_SIGTRAMP; -+ -+ return; -+ -+give_sigsegv: -+ /* user space exception */ -+ force_sigsegv(sig, current); -+} -+ -+static inline void -+handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) -+{ -+ switch (regs->dn[0]) { -+ case -ERESTARTNOHAND: -+ if (!has_handler) -+ goto do_restart; -+ regs->dn[0] = -EINTR; -+ break; -+ -+ case -ERESTARTSYS: -+ if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { -+ regs->dn[0] = -EINTR; -+ break; -+ } -+ /* fallthrough */ -+ case -ERESTARTNOINTR: -+ do_restart: -+ regs->dn[0] = regs->original_dn_0; -+ regs->pc -= 8; -+ regs->an[5] -= 8; -+ break; -+ } -+} -+ -+/* -+ * OK, we're invoking a handler -+ */ -+static void -+handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, -+ sigset_t *oldset, struct pt_regs *regs) -+{ -+ /* are we from a system call? */ -+ if (regs->frame_type == -1) -+ /* If so, check system call restarting.. */ -+ handle_restart(regs, ka, 1); -+ -+ /* set up the stack frame */ -+ setup_rt_frame(sig, ka, info, oldset, regs); -+ -+ if (ka->sa.sa_flags & SA_ONESHOT) -+ ka->sa.sa_handler = SIG_DFL; -+ -+ spin_lock_irq(¤t->sighand->siglock); -+ sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); -+ if (!(ka->sa.sa_flags & SA_NODEFER)) -+ sigaddset(¤t->blocked,sig); -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->sighand->siglock); -+} -+ -+/* -+ * Note that 'init' is a special process: it doesn't get signals it doesn't -+ * want to handle. Thus you cannot kill init even with a SIGKILL even by -+ * mistake. -+ */ -+asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs) -+{ -+ struct k_sigaction ka; -+ siginfo_t info; -+ int signr; -+ -+ /* -+ * We want the common case to go fast, which -+ * is why we may in certain cases get here from -+ * kernel mode. Just return without doing anything -+ * if so. -+ */ -+ if (!user_mode(regs)) -+ return 1; -+ -+ if (!oldset) -+ oldset = ¤t->blocked; -+ -+ signr = get_signal_to_deliver(&info, &ka, regs, NULL); -+ if (signr > 0) { -+ /* Whee! Actually deliver the signal. */ -+ handle_signal(signr, &ka, &info, oldset, regs); -+ return 1; -+ } -+ -+ /* Did we come from a system call? */ -+ if (regs->frame_type == -1) { -+ /* Restart the system call - no handlers present */ -+ handle_restart(regs, NULL, 0); -+ } -+ -+ return 0; -+} -+ -+/* -+ * sys_sigreturn() -+ * Return handler for signal clean-up. -+ * -+ * NOTE: Ubicom32 does not use this syscall. Instead we rely -+ * on do_rt_sigreturn(). -+ */ -+asmlinkage long sys_sigreturn(void) -+{ -+ return -ENOSYS; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/smp.c -@@ -0,0 +1,808 @@ -+/* -+ * arch/ubicom32/kernel/smp.c -+ * SMP implementation for Ubicom32 processors. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> -+ * Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com> -+ * Copyright (C) 2001,2004 Grant Grundler <grundler@parisc-linux.org> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/types.h> -+#include <linux/spinlock.h> -+#include <linux/slab.h> -+ -+#include <linux/kernel.h> -+#include <linux/bootmem.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/init.h> -+#include <linux/interrupt.h> -+#include <linux/smp.h> -+#include <linux/kernel_stat.h> -+#include <linux/mm.h> -+#include <linux/err.h> -+#include <linux/delay.h> -+#include <linux/bitops.h> -+#include <linux/cpu.h> -+#include <linux/profile.h> -+#include <linux/delay.h> -+#include <linux/io.h> -+#include <linux/ptrace.h> -+#include <linux/unistd.h> -+#include <linux/irq.h> -+ -+#include <asm/system.h> -+#include <asm/atomic.h> -+#include <asm/current.h> -+#include <asm/tlbflush.h> -+#include <asm/timex.h> -+#include <asm/cpu.h> -+#include <asm/irq.h> -+#include <asm/processor.h> -+#include <asm/thread.h> -+#include <asm/sections.h> -+#include <asm/ip5000.h> -+ -+/* -+ * Mask the debug printout for IPI because they are too verbose -+ * for regular debugging. -+ */ -+ -+// #define DEBUG_SMP 1 -+#if !defined(DEBUG_SMP) -+#define smp_debug(lvl, ...) -+#else -+static unsigned int smp_debug_lvl = 50; -+#define smp_debug(lvl, printargs...) \ -+ if (lvl >= smp_debug_lvl) { \ -+ printk(printargs); \ -+ } -+#endif -+ -+#if !defined(DEBUG_SMP) -+#define DEBUG_ASSERT(cond) -+#else -+#define DEBUG_ASSERT(cond) \ -+ if (!(cond)) { \ -+ THREAD_STALL; \ -+ } -+#endif -+ -+/* -+ * List of IPI Commands (more than one can be set at a time). -+ */ -+enum ipi_message_type { -+ IPI_NOP, -+ IPI_RESCHEDULE, -+ IPI_CALL_FUNC, -+ IPI_CALL_FUNC_SINGLE, -+ IPI_CPU_STOP, -+ IPI_CPU_TIMER, -+}; -+ -+/* -+ * These values are properly adjusted by smp_prepare_cpus() below. They are -+ * required to be declared in the arch directory if CONFIG_SMP is set. -+ */ -+cpumask_t cpu_online_map = CPU_MASK_NONE; /* Bitmap of online CPUs */ -+EXPORT_SYMBOL(cpu_online_map); -+ -+cpumask_t cpu_possible_map = CPU_MASK_ALL; /* Bitmap of Present CPUs */ -+EXPORT_SYMBOL(cpu_possible_map); -+ -+/* -+ * We maintain a hardware thread oriented view of online threads -+ * and those involved or needing IPI. -+ */ -+static unsigned long smp_online_threads = 0; -+static unsigned long smp_needs_ipi = 0; -+static unsigned long smp_inside_ipi = 0; -+static unsigned long smp_irq_affinity[NR_IRQS]; -+ -+/* -+ * What do we need to track on a per cpu/thread basis? -+ */ -+DEFINE_PER_CPU(struct cpuinfo_ubicom32, cpu_data); -+ -+/* -+ * Each thread cpuinfo IPI information is guarded by a lock -+ * that is kept local to this file. -+ */ -+DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED; -+ -+/* -+ * The IPI(s) are based on a software IRQ through the LDSR. -+ */ -+unsigned int smp_ipi_irq; -+ -+/* -+ * Define a spinlock so that only one cpu is able to modify the -+ * smp_needs_ipi and to set/clear the IRQ at a time. -+ */ -+DEFINE_SPINLOCK(smp_ipi_lock); -+ -+/* -+ * smp_halt_processor() -+ * Halt this hardware thread. -+ */ -+static void smp_halt_processor(void) -+{ -+ int cpuid = thread_get_self(); -+ cpu_clear(smp_processor_id(), cpu_online_map); -+ local_irq_disable(); -+ printk(KERN_EMERG "cpu[%d] has halted. It is not OK to turn off power \ -+ until all cpu's are off.\n", cpuid); -+ for (;;) { -+ thread_suspend(); -+ } -+} -+ -+/* -+ * ipi_interrupt() -+ * Handle an Interprocessor Interrupt. -+ */ -+static irqreturn_t ipi_interrupt(int irq, void *dev_id) -+{ -+ int cpuid = smp_processor_id(); -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid); -+ unsigned long ops; -+ -+ /* -+ * Count this now; we may make a call that never returns. -+ */ -+ p->ipi_count++; -+ -+ /* -+ * We are about to process all ops. If another cpu has stated -+ * that we need an IPI, we will have already processed it. By -+ * clearing our smp_needs_ipi, and processing all ops, -+ * we reduce the number of IPI interrupts. However, this introduces -+ * the possibility that smp_needs_ipi will be clear and the soft irq -+ * will have gone off; so we need to make the get_affinity() path -+ * tolerant of spurious interrupts. -+ */ -+ spin_lock(&smp_ipi_lock); -+ smp_needs_ipi &= ~p->tid; -+ spin_unlock(&smp_ipi_lock); -+ -+ for (;;) { -+ /* -+ * Read the set of IPI commands we should handle. -+ */ -+ spinlock_t *lock = &per_cpu(ipi_lock, cpuid); -+ spin_lock(lock); -+ ops = p->ipi_pending; -+ p->ipi_pending = 0; -+ spin_unlock(lock); -+ -+ /* -+ * If we have no IPI commands to execute, break out. -+ */ -+ if (!ops) { -+ break; -+ } -+ -+ /* -+ * Execute the set of commands in the ops word, one command -+ * at a time in no particular order. Strip of each command -+ * as we execute it. -+ */ -+ while (ops) { -+ unsigned long which = ffz(~ops); -+ ops &= ~(1 << which); -+ -+ BUG_ON(!irqs_disabled()); -+ switch (which) { -+ case IPI_NOP: -+ smp_debug(100, KERN_INFO "cpu[%d]: " -+ "IPI_NOP\n", cpuid); -+ break; -+ -+ case IPI_RESCHEDULE: -+ /* -+ * Reschedule callback. Everything to be -+ * done is done by the interrupt return path. -+ */ -+ smp_debug(200, KERN_INFO "cpu[%d]: " -+ "IPI_RESCHEDULE\n", cpuid); -+ break; -+ -+ case IPI_CALL_FUNC: -+ smp_debug(100, KERN_INFO "cpu[%d]: " -+ "IPI_CALL_FUNC\n", cpuid); -+ generic_smp_call_function_interrupt(); -+ break; -+ -+ case IPI_CALL_FUNC_SINGLE: -+ smp_debug(100, KERN_INFO "cpu[%d]: " -+ "IPI_CALL_FUNC_SINGLE\n", cpuid); -+ generic_smp_call_function_single_interrupt(); -+ break; -+ -+ case IPI_CPU_STOP: -+ smp_debug(100, KERN_INFO "cpu[%d]: " -+ "IPI_CPU_STOP\n", cpuid); -+ smp_halt_processor(); -+ break; -+ -+#if !defined(CONFIG_LOCAL_TIMERS) -+ case IPI_CPU_TIMER: -+ smp_debug(100, KERN_INFO "cpu[%d]: " -+ "IPI_CPU_TIMER\n", cpuid); -+#if defined(CONFIG_GENERIC_CLOCKEVENTS) -+ local_timer_interrupt(); -+#else -+ update_process_times(user_mode(get_irq_regs())); -+ profile_tick(CPU_PROFILING); -+#endif -+#endif -+ break; -+ -+ default: -+ printk(KERN_CRIT "cpu[%d]: " -+ "Unknown IPI: %lu\n", cpuid, which); -+ -+ return IRQ_NONE; -+ } -+ -+ /* -+ * Let in any pending interrupts -+ */ -+ BUG_ON(!irqs_disabled()); -+ local_irq_enable(); -+ local_irq_disable(); -+ } -+ } -+ return IRQ_HANDLED; -+} -+ -+/* -+ * ipi_send() -+ * Send an Interprocessor Interrupt. -+ */ -+static void ipi_send(int cpu, enum ipi_message_type op) -+{ -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu); -+ spinlock_t *lock = &per_cpu(ipi_lock, cpu); -+ unsigned long flags; -+ -+ /* -+ * We protect the setting of the ipi_pending field and ensure -+ * that the ipi delivery mechanism and interrupt are atomically -+ * handled. -+ */ -+ spin_lock_irqsave(lock, flags); -+ p->ipi_pending |= 1 << op; -+ spin_unlock_irqrestore(lock, flags); -+ -+ spin_lock_irqsave(&smp_ipi_lock, flags); -+ smp_needs_ipi |= (1 << p->tid); -+ ubicom32_set_interrupt(smp_ipi_irq); -+ spin_unlock_irqrestore(&smp_ipi_lock, flags); -+} -+ -+/* -+ * ipi_send_mask -+ * Send an IPI to each cpu in mask. -+ */ -+static inline void ipi_send_mask(unsigned int op, cpumask_t mask) -+{ -+ int cpu; -+ for_each_cpu_mask(cpu, mask) { -+ ipi_send(cpu, op); -+ } -+} -+ -+/* -+ * ipi_send_allbutself() -+ * Send an IPI to all threads but ourselves. -+ */ -+static inline void ipi_send_allbutself(unsigned int op) -+{ -+ int self = smp_processor_id(); -+ cpumask_t result = cpu_online_map; -+ cpu_clear(self, result); -+ ipi_send_mask(op, result); -+} -+ -+/* -+ * smp_enable_vector() -+ */ -+static void smp_enable_vector(unsigned int irq) -+{ -+ ubicom32_clear_interrupt(smp_ipi_irq); -+ ldsr_enable_vector(irq); -+} -+ -+/* -+ * smp_disable_vector() -+ * Disable the interrupt by clearing the appropriate bit in the -+ * LDSR Mask Register. -+ */ -+static void smp_disable_vector(unsigned int irq) -+{ -+ ldsr_disable_vector(irq); -+} -+ -+/* -+ * smp_mask_vector() -+ */ -+static void smp_mask_vector(unsigned int irq) -+{ -+ ldsr_mask_vector(irq); -+} -+ -+/* -+ * smp_unmask_vector() -+ */ -+static void smp_unmask_vector(unsigned int irq) -+{ -+ ldsr_unmask_vector(irq); -+} -+ -+/* -+ * smp_end_vector() -+ * Called once an interrupt is completed (reset the LDSR mask). -+ */ -+static void smp_end_vector(unsigned int irq) -+{ -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, smp_processor_id()); -+ spin_lock(&smp_ipi_lock); -+ smp_inside_ipi &= ~(1 << p->tid); -+ if (smp_inside_ipi) { -+ spin_unlock(&smp_ipi_lock); -+ return; -+ } -+ spin_unlock(&smp_ipi_lock); -+ ldsr_unmask_vector(irq); -+} -+ -+/* -+ * Special hanlder functions for SMP. -+ */ -+static struct irq_chip ubicom32_smp_chip = { -+ .name = "UbicoIPI", -+ .startup = NULL, -+ .shutdown = NULL, -+ .enable = smp_enable_vector, -+ .disable = smp_disable_vector, -+ .ack = NULL, -+ .mask = smp_mask_vector, -+ .unmask = smp_unmask_vector, -+ .end = smp_end_vector, -+}; -+ -+/* -+ * smp_reset_ipi() -+ * None of these cpu(s) got their IPI, turn it back on. -+ * -+ * Note: This is called by the LDSR which is not a full -+ * Linux cpu. Thus you must use the raw form of locks -+ * because lock debugging will not work on the partial -+ * cpu nature of the LDSR. -+ */ -+void smp_reset_ipi(unsigned long mask) -+{ -+ __raw_spin_lock(&smp_ipi_lock.raw_lock); -+ smp_needs_ipi |= mask; -+ smp_inside_ipi &= ~mask; -+ ubicom32_set_interrupt(smp_ipi_irq); -+ __raw_spin_unlock(&smp_ipi_lock.raw_lock); -+} -+ -+/* -+ * smp_get_affinity() -+ * Choose the thread affinity for this interrupt. -+ * -+ * Note: This is called by the LDSR which is not a full -+ * Linux cpu. Thus you must use the raw form of locks -+ * because lock debugging will not work on the partial -+ * cpu nature of the LDSR. -+ */ -+unsigned long smp_get_affinity(unsigned int irq, int *all) -+{ -+ unsigned long mask = 0; -+ -+ /* -+ * Most IRQ(s) are delivered in a round robin fashion. -+ */ -+ if (irq != smp_ipi_irq) { -+ unsigned long result = smp_irq_affinity[irq] & smp_online_threads; -+ DEBUG_ASSERT(result); -+ *all = 0; -+ return result; -+ } -+ -+ /* -+ * This is an IPI request. Return all cpu(s) scheduled for an IPI. -+ * We also track those cpu(s) that are going to be "receiving" IPI this -+ * round. When all CPU(s) have called smp_end_vector(), -+ * we will unmask the IPI interrupt. -+ */ -+ __raw_spin_lock(&smp_ipi_lock.raw_lock); -+ ubicom32_clear_interrupt(smp_ipi_irq); -+ if (smp_needs_ipi) { -+ mask = smp_needs_ipi; -+ smp_inside_ipi |= smp_needs_ipi; -+ smp_needs_ipi = 0; -+ } -+ __raw_spin_unlock(&smp_ipi_lock.raw_lock); -+ *all = 1; -+ return mask; -+} -+ -+/* -+ * smp_set_affinity() -+ * Set the affinity for this irq but store the value in tid(s). -+ */ -+void smp_set_affinity(unsigned int irq, cpumask_t dest) -+{ -+ int cpuid; -+ unsigned long *paffinity = &smp_irq_affinity[irq]; -+ -+ /* -+ * If none specified, all cpus are allowed. -+ */ -+ if (cpus_empty(dest)) { -+ *paffinity = 0xffffffff; -+ return; -+ } -+ -+ /* -+ * Make sure to clear the old value before setting up the -+ * list. -+ */ -+ *paffinity = 0; -+ for_each_cpu_mask(cpuid, dest) { -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid); -+ *paffinity |= (1 << p->tid); -+ } -+} -+ -+/* -+ * smp_send_stop() -+ * Send a stop request to all CPU but this one. -+ */ -+void smp_send_stop(void) -+{ -+ ipi_send_allbutself(IPI_CPU_STOP); -+} -+ -+/* -+ * smp_send_timer_all() -+ * Send all cpu(s) but this one, a request to update times. -+ */ -+void smp_send_timer_all(void) -+{ -+ ipi_send_allbutself(IPI_CPU_TIMER); -+} -+ -+/* -+ * smp_timer_broadcast() -+ * Use an IPI to broadcast a timer message -+ */ -+void smp_timer_broadcast(cpumask_t mask) -+{ -+ ipi_send_mask(IPI_CPU_TIMER, mask); -+} -+ -+/* -+ * smp_send_reschedule() -+ * Send a reschedule request to the specified cpu. -+ */ -+void smp_send_reschedule(int cpu) -+{ -+ ipi_send(cpu, IPI_RESCHEDULE); -+} -+ -+/* -+ * arch_send_call_function_ipi() -+ * Cause each cpu in the mask to call the generic function handler. -+ */ -+void arch_send_call_function_ipi(cpumask_t mask) -+{ -+ int cpu; -+ for_each_cpu_mask(cpu, mask) { -+ ipi_send(cpu, IPI_CALL_FUNC); -+ } -+} -+ -+/* -+ * arch_send_call_function_single_ipi() -+ * Cause the specified cpu to call the generic function handler. -+ */ -+void arch_send_call_function_single_ipi(int cpu) -+{ -+ ipi_send(cpu, IPI_CALL_FUNC_SINGLE); -+} -+ -+/* -+ * smp_mainline_start() -+ * Start a slave thread executing a mainline Linux context. -+ */ -+static void __init smp_mainline_start(void *arg) -+{ -+ int cpuid = smp_processor_id(); -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid); -+ -+ BUG_ON(p->tid != thread_get_self()); -+ -+ /* -+ * Well, support 2.4 linux scheme as well. -+ */ -+ if (cpu_test_and_set(cpuid, cpu_online_map)) { -+ printk(KERN_CRIT "cpu[%d]: already initialized!\n", cpuid); -+ smp_halt_processor(); -+ return; -+ } -+ -+ /* -+ * Initialise the idle task for this CPU -+ */ -+ atomic_inc(&init_mm.mm_count); -+ current->active_mm = &init_mm; -+ if (current->mm) { -+ printk(KERN_CRIT "cpu[%d]: idle task already has memory " -+ "management\n", cpuid); -+ smp_halt_processor(); -+ return; -+ } -+ -+ /* -+ * TODO: X86 does this prior to calling notify, try to understand why? -+ */ -+ preempt_disable(); -+ -+#if defined(CONFIG_GENERIC_CLOCKEVENTS) -+ /* -+ * Setup a local timer event so that this cpu will get timer interrupts -+ */ -+ if (local_timer_setup(cpuid) == -1) { -+ printk(KERN_CRIT "cpu[%d]: timer alloc failed\n", cpuid); -+ smp_halt_processor(); -+ return; -+ } -+#endif -+ -+ /* -+ * Notify those interested that we are up and alive. This must -+ * be done before interrupts are enabled. It must also be completed -+ * before the bootstrap cpu returns from __cpu_up() (see comment -+ * above cpu_set() of the cpu_online_map). -+ */ -+ notify_cpu_starting(cpuid); -+ -+ /* -+ * Indicate that this thread is now online and present. Setting -+ * cpu_online_map has the side effect of allowing the bootstrap -+ * cpu to continue along; so anything that MUST be done prior to the -+ * bootstrap cpu returning from __cpu_up() needs to go above here. -+ */ -+ cpu_set(cpuid, cpu_online_map); -+ cpu_set(cpuid, cpu_present_map); -+ -+ /* -+ * Maintain a thread mapping in addition to the cpu mapping. -+ */ -+ smp_online_threads |= (1 << p->tid); -+ -+ /* -+ * Enable interrupts for this thread. -+ */ -+ local_irq_enable(); -+ -+ /* -+ * Enter the idle loop and wait for a timer to schedule some work. -+ */ -+ printk(KERN_INFO "cpu[%d]: entering cpu_idle()\n", cpuid); -+ cpu_idle(); -+ -+ /* Not Reached */ -+} -+ -+/* -+ * smp_cpus_done() -+ * Called once the kernel_init() has brought up all cpu(s). -+ */ -+void smp_cpus_done(unsigned int cpu_max) -+{ -+ /* Do Nothing */ -+} -+ -+/* -+ * __cpu_up() -+ * Called to startup a sepcific cpu. -+ */ -+int __cpuinit __cpu_up(unsigned int cpu) -+{ -+ struct task_struct *idle; -+ unsigned int *stack; -+ long timeout; -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu); -+ -+ /* -+ * Create an idle task for this CPU. -+ */ -+ idle = fork_idle(cpu); -+ if (IS_ERR(idle)) { -+ panic("cpu[%d]: fork failed\n", cpu); -+ return -ENOSYS; -+ } -+ task_thread_info(idle)->cpu = cpu; -+ -+ /* -+ * Setup the sw_ksp[] to point to this new task. -+ */ -+ sw_ksp[p->tid] = (unsigned int)idle->stack; -+ stack = (unsigned int *)(sw_ksp[p->tid] + PAGE_SIZE - 8); -+ -+ /* -+ * Cause the specified thread to execute our smp_mainline_start -+ * function as a TYPE_NORMAL thread. -+ */ -+ printk(KERN_INFO "cpu[%d]: launching mainline Linux thread\n", cpu); -+ if (thread_start(p->tid, smp_mainline_start, (void *)NULL, stack, -+ THREAD_TYPE_NORMAL) == -1) { -+ printk(KERN_WARNING "cpu[%d]: failed thread_start\n", cpu); -+ return -ENOSYS; -+ } -+ -+ /* -+ * Wait for the thread to start up. The thread will set -+ * the online bit when it is running. Our caller execpts the -+ * cpu to be online if we return 0. -+ */ -+ for (timeout = 0; timeout < 10000; timeout++) { -+ if (cpu_online(cpu)) { -+ break; -+ } -+ -+ udelay(100); -+ barrier(); -+ continue; -+ } -+ -+ if (!cpu_online(cpu)) { -+ printk(KERN_CRIT "cpu[%d]: failed to live after %ld us\n", -+ cpu, timeout * 100); -+ return -ENOSYS; -+ } -+ -+ printk(KERN_INFO "cpu[%d]: came alive after %ld us\n", -+ cpu, timeout * 100); -+ return 0; -+} -+ -+/* -+ * Data used by setup_irq for the IPI. -+ */ -+static struct irqaction ipi_irq = { -+ .name = "ipi", -+ .flags = IRQF_DISABLED | IRQF_PERCPU, -+ .handler = ipi_interrupt, -+}; -+ -+/* -+ * smp_prepare_cpus() -+ * Mark threads that are available to Linux as possible cpus(s). -+ */ -+void __init smp_prepare_cpus(unsigned int max_cpus) -+{ -+ int i; -+ -+ /* -+ * We will need a software IRQ to send IPI(s). We will use -+ * a single software IRQ for all IPI(s). -+ */ -+ if (irq_soft_alloc(&smp_ipi_irq) < 0) { -+ panic("no software IRQ is available\n"); -+ return; -+ } -+ -+ /* -+ * For the IPI interrupt, we want to use our own chip definition. -+ * This allows us to define what happens in SMP IPI without affecting -+ * the performance of the other interrupts. -+ * -+ * Next, Register the IPI interrupt function against the soft IRQ. -+ */ -+ set_irq_chip(smp_ipi_irq, &ubicom32_smp_chip); -+ setup_irq(smp_ipi_irq, &ipi_irq); -+ -+ /* -+ * We use the device tree node to determine how many -+ * free cpus we will have (up to NR_CPUS) and we indicate -+ * that those cpus are present. -+ * -+ * We need to do this very early in the SMP case -+ * because the Linux init code uses the cpu_present_map. -+ */ -+ for_each_possible_cpu(i) { -+ thread_t tid; -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, i); -+ -+ /* -+ * Skip the bootstrap cpu -+ */ -+ if (i == 0) { -+ continue; -+ } -+ -+ /* -+ * If we have a free thread left in the mask, -+ * indicate that the cpu is present. -+ */ -+ tid = thread_alloc(); -+ if (tid == (thread_t)-1) { -+ break; -+ } -+ -+ /* -+ * Save the hardware thread id for this cpu. -+ */ -+ p->tid = tid; -+ cpu_set(i, cpu_present_map); -+ printk(KERN_INFO "cpu[%d]: added to cpu_present_map - tid: %d\n", i, tid); -+ } -+} -+ -+/* -+ * smp_prepare_boot_cpu() -+ * Copy the per_cpu data into the appropriate spot for the bootstrap cpu. -+ * -+ * The code in boot_cpu_init() has already set the boot cpu's -+ * state in the possible, present, and online maps. -+ */ -+void __devinit smp_prepare_boot_cpu(void) -+{ -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0); -+ -+ smp_online_threads |= (1 << p->tid); -+ printk(KERN_INFO "cpu[%d]: bootstrap CPU online - tid: %ld\n", -+ current_thread_info()->cpu, p->tid); -+} -+ -+/* -+ * smp_setup_processor_id() -+ * Set the current_thread_info() structure cpu value. -+ * -+ * We set the value to the true hardware thread value that we are running on. -+ * NOTE: this function overrides the weak alias function in main.c -+ */ -+void __init smp_setup_processor_id(void) -+{ -+ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0); -+ current_thread_info()->cpu = 0; -+ p->tid = thread_get_self(); -+} -+ -+/* -+ * setup_profiling_timer() -+ * Dummy function created to keep Oprofile happy in the SMP case. -+ */ -+int setup_profiling_timer(unsigned int multiplier) -+{ -+ return 0; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/stacktrace.c -@@ -0,0 +1,243 @@ -+/* -+ * arch/ubicom32/kernel/stacktrace.c -+ * Ubicom32 architecture stack back trace implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/sched.h> -+#include <linux/stacktrace.h> -+#include <linux/module.h> -+#include <asm/stacktrace.h> -+#include <asm/thread.h> -+ -+/* -+ * These symbols are filled in by the linker. -+ */ -+extern unsigned long _stext; -+extern unsigned long _etext; -+ -+extern unsigned long __ocm_text_run_begin; -+extern unsigned long __data_begin; -+ -+/* -+ * stacktrace_iterate() -+ * Walk the stack looking for call and calli instructions on an aligned -+ * boundary. -+ * -+ * Trace must point to the top of the current stack frame. -+ */ -+unsigned long stacktrace_iterate(unsigned long **trace, -+ unsigned long stext, -+ unsigned long etext, -+ unsigned long ocm_stext, -+ unsigned long ocm_etext, -+ unsigned long sstack, -+ unsigned long estack) -+{ -+ unsigned int thread_trap_en, instruction; -+ unsigned long address; -+ unsigned int limit = 0; -+ unsigned long result = 0; -+ unsigned long *sp = *trace; -+ -+ /* -+ * Exclude the current thread from being monitored for traps. -+ */ -+ asm volatile( -+ " thread_get_self_mask d15 \n\t" -+ /* save current trap status */ -+ " and.4 %0, MT_TRAP_EN, d15 \n\t" -+ " not.4 d15, d15 \n\t" -+ /* disable trap */ -+ " and.4 MT_TRAP_EN, MT_TRAP_EN, d15 \n\t" -+ " pipe_flush 0 \n\t" -+ : "=r" (thread_trap_en) -+ : -+ : "d15", "cc" -+ ); -+ -+ while (limit++ < 256) { -+ /* -+ * See if we have a valid stack. -+ */ -+ if (!between((unsigned long)sp, sstack, estack)) { -+#ifdef TRAP_DEBUG_STACK_TRACE -+ printk(KERN_EMERG "stack address is out of range - " -+ "sp: %x, sstack: %x, estack: %x\n", -+ (unsigned int)sp, (unsigned int)sstack, -+ (unsigned int)estack); -+#endif -+ result = 0; -+ *trace = 0; -+ break; -+ } -+ -+ /* -+ * Get the value off the stack and back up 4 bytes to what -+ * should be the address of a call or calli. -+ */ -+ address = (*sp++) - 4; -+ -+ /* -+ * If the address is not within the text segment, skip this -+ * value. -+ */ -+ if (!between(address, stext, etext) && -+ !between(address, ocm_stext, ocm_etext)) { -+#ifdef TRAP_DEBUG_STACK_TRACE -+ printk(KERN_EMERG "not a text address - " -+ "address: %08x, stext: %08x, etext: %08x\n" -+ "ocm_stext: %08x, ocm_etext: %08x\n", -+ (unsigned int)address, -+ (unsigned int)stext, -+ (unsigned int)etext, -+ (unsigned int)ocm_stext, -+ (unsigned int)ocm_etext); -+#endif -+ continue; -+ -+ } -+ -+ /* -+ * If the address is not on an aligned boundary it can not be a -+ * return address. -+ */ -+ if (address & 0x3) { -+ continue; -+ } -+ -+ /* -+ * Read the probable instruction. -+ */ -+ instruction = *(unsigned int *)address; -+ -+ /* -+ * Is this a call instruction? -+ */ -+ if ((instruction & 0xF8000000) == (u32_t)(0x1B << 27)) { -+#ifdef TRAP_DEBUG_STACK_TRACE -+ printk(KERN_EMERG "call inst. result: %x, " -+ "test: %x\n", (unsigned int)address, -+ (unsigned int)instruction); -+#endif -+ *trace = sp; -+ result = address; -+ break; -+ } -+ -+ /* -+ * Is this a calli instruction? -+ */ -+ if ((instruction & 0xF8000000) == (u32_t)(0x1E << 27)) { -+#ifdef TRAP_DEBUG_STACK_TRACE -+ printk(KERN_EMERG "calli inst. result: %x, " -+ "test: %x\n", (unsigned int)address, -+ (unsigned int)instruction); -+#endif -+ *trace = sp; -+ result = address; -+ break; -+ } -+ } -+ -+ /* -+ * Restore the current thread to be monitored for traps. -+ */ -+ if (thread_trap_en) { -+ asm volatile( -+ " thread_get_self_mask d15 \n\t" -+ " or.4 MT_TRAP_EN, MT_TRAP_EN, d15 \n\t" -+ : -+ : -+ : "d15", "cc" -+ ); -+ } -+ return result; -+} -+ -+#ifdef CONFIG_STACKTRACE -+/* -+ * stacktrace_save_entries() -+ * Save stack back trace information into the provided trace structure. -+ */ -+void stacktrace_save_entries(struct task_struct *tsk, -+ struct stack_trace *trace, -+ unsigned long sp) -+{ -+ unsigned long code_start = (unsigned long)&_stext; -+ unsigned long code_end = (unsigned long)&_etext; -+ unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin; -+ unsigned long ocm_code_end = (unsigned long)&__data_begin; -+ unsigned long stack_end = (unsigned long)(tsk->stack + THREAD_SIZE - 8); -+ unsigned long stack = (unsigned long)sp; -+ unsigned int idx = 0; -+ unsigned long *handle; -+ int skip = trace->skip; -+ -+ handle = (unsigned long *)stack; -+ while (idx < trace->max_entries) { -+ if (skip) { -+ skip--; -+ continue; -+ } -+ trace->entries[idx] = stacktrace_iterate(&handle, -+ code_start, code_end, -+ ocm_code_start, ocm_code_end, -+ (unsigned long)stack, stack_end); -+ if (trace->entries[idx] == 0) { -+ break; -+ } -+ idx++; -+ } -+} -+ -+/* -+ * save_stack_trace() -+ * Save the specified amount of the kernel stack trace information -+ * for the current task. -+ */ -+void save_stack_trace(struct stack_trace *trace) -+{ -+ unsigned long sp = 0; -+ asm volatile ( -+ " move.4 %0, SP \n\t" -+ : "=r" (sp) -+ ); -+ stacktrace_save_entries(current, trace, sp); -+} -+EXPORT_SYMBOL_GPL(save_stack_trace); -+ -+/* -+ * save_stack_trace_tsk() -+ * Save the specified amount of the kernel stack trace information -+ * for the specified task. -+ * -+ * Note: We assume the specified task is not currently running. -+ */ -+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) -+{ -+ stacktrace_save_entries(tsk, trace, tsk->thread.sp); -+} -+EXPORT_SYMBOL_GPL(save_stack_trace_tsk); -+#endif /* CONFIG_STACKTRACE */ ---- /dev/null -+++ b/arch/ubicom32/kernel/syscalltable.S -@@ -0,0 +1,377 @@ -+/* -+ * arch/ubicom32/kernel/syscalltable.S -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * -+ * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) -+ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, Kenneth Albanowski <kjahds@kjahds.com>, -+ * Copyright (C) 2000 Lineo Inc. (www.lineo.com) -+ * Copyright (C) 1991, 1992 Linus Torvalds -+ */ -+ -+#include <linux/sys.h> -+#include <linux/linkage.h> -+#include <asm/unistd.h> -+ -+.text -+ALIGN -+ .global sys_call_table -+sys_call_table: -+ .long sys_ni_syscall /* 0 - old "setup()" system call*/ -+ .long sys_exit -+ .long sys_fork -+ .long sys_read -+ .long sys_write -+ .long sys_open /* 5 */ -+ .long sys_close -+ .long sys_waitpid -+ .long sys_creat -+ .long sys_link -+ .long sys_unlink /* 10 */ -+ .long execve_intercept -+ .long sys_chdir -+ .long sys_time -+ .long sys_mknod -+ .long sys_chmod /* 15 */ -+ .long sys_chown16 -+ .long sys_ni_syscall /* old break syscall holder */ -+ .long sys_stat -+ .long sys_lseek -+ .long sys_getpid /* 20 */ -+ .long sys_mount -+ .long sys_oldumount -+ .long sys_setuid16 -+ .long sys_getuid16 -+ .long sys_stime /* 25 */ -+ .long sys_ptrace -+ .long sys_alarm -+ .long sys_fstat -+ .long sys_pause -+ .long sys_utime /* 30 */ -+ .long sys_ni_syscall /* old stty syscall holder */ -+ .long sys_ni_syscall /* old gtty syscall holder */ -+ .long sys_access -+ .long sys_nice -+ .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ -+ .long sys_sync -+ .long sys_kill -+ .long sys_rename -+ .long sys_mkdir -+ .long sys_rmdir /* 40 */ -+ .long sys_dup -+ .long sys_pipe -+ .long sys_times -+ .long sys_ni_syscall /* old prof syscall holder */ -+ .long sys_brk /* 45 */ -+ .long sys_setgid16 -+ .long sys_getgid16 -+ .long sys_signal -+ .long sys_geteuid16 -+ .long sys_getegid16 /* 50 */ -+ .long sys_acct -+ .long sys_umount /* recycled never used phys() */ -+ .long sys_ni_syscall /* old lock syscall holder */ -+ .long sys_ioctl -+ .long sys_fcntl /* 55 */ -+ .long sys_ni_syscall /* old mpx syscall holder */ -+ .long sys_setpgid -+ .long sys_ni_syscall /* old ulimit syscall holder */ -+ .long sys_ni_syscall -+ .long sys_umask /* 60 */ -+ .long sys_chroot -+ .long sys_ustat -+ .long sys_dup2 -+ .long sys_getppid -+ .long sys_getpgrp /* 65 */ -+ .long sys_setsid -+ .long sys_sigaction -+ .long sys_sgetmask -+ .long sys_ssetmask -+ .long sys_setreuid16 /* 70 */ -+ .long sys_setregid16 -+ .long sys_sigsuspend -+ .long sys_sigpending -+ .long sys_sethostname -+ .long sys_setrlimit /* 75 */ -+ .long sys_old_getrlimit -+ .long sys_getrusage -+ .long sys_gettimeofday -+ .long sys_settimeofday -+ .long sys_getgroups16 /* 80 */ -+ .long sys_setgroups16 -+ .long old_select -+ .long sys_symlink -+ .long sys_lstat -+ .long sys_readlink /* 85 */ -+ .long sys_uselib -+ .long sys_ni_syscall /* _sys_swapon */ -+ .long sys_reboot -+ .long sys_old_readdir -+ .long old_mmap /* 90 */ -+ .long sys_munmap -+ .long sys_truncate -+ .long sys_ftruncate -+ .long sys_fchmod -+ .long sys_fchown16 /* 95 */ -+ .long sys_getpriority -+ .long sys_setpriority -+ .long sys_ni_syscall /* old profil syscall holder */ -+ .long sys_statfs -+ .long sys_fstatfs /* 100 */ -+ .long sys_ni_syscall /* ioperm for i386 */ -+ .long sys_socketcall -+ .long sys_syslog -+ .long sys_setitimer -+ .long sys_getitimer /* 105 */ -+ .long sys_newstat -+ .long sys_newlstat -+ .long sys_newfstat -+ .long sys_ni_syscall -+ .long sys_ni_syscall /* iopl for i386 */ /* 110 */ -+ .long sys_vhangup -+ .long sys_ni_syscall /* obsolete idle() syscall */ -+ .long sys_ni_syscall /* vm86old for i386 */ -+ .long sys_wait4 -+ .long sys_ni_syscall /* 115 */ /* _sys_swapoff */ -+ .long sys_sysinfo -+ .long sys_ipc -+ .long sys_fsync -+ .long sys_sigreturn -+ .long clone_intercept /* 120 */ -+ .long sys_setdomainname -+ .long sys_newuname -+ .long sys_cacheflush /* modify_ldt for i386 */ -+ .long sys_adjtimex -+ .long sys_ni_syscall /* 125 */ /* _sys_mprotect */ -+ .long sys_sigprocmask -+ .long sys_ni_syscall /* old "creat_module" */ -+ .long sys_init_module -+ .long sys_delete_module -+ .long sys_ni_syscall /* 130: old "get_kernel_syms" */ -+ .long sys_quotactl -+ .long sys_getpgid -+ .long sys_fchdir -+ .long sys_bdflush -+ .long sys_sysfs /* 135 */ -+ .long sys_personality -+ .long sys_ni_syscall /* for afs_syscall */ -+ .long sys_setfsuid16 -+ .long sys_setfsgid16 -+ .long sys_llseek /* 140 */ -+ .long sys_getdents -+ .long sys_select -+ .long sys_flock -+ .long sys_ni_syscall /* _sys_msync */ -+ .long sys_readv /* 145 */ -+ .long sys_writev -+ .long sys_getsid -+ .long sys_fdatasync -+ .long sys_sysctl -+ .long sys_ni_syscall /* 150 */ /* _sys_mlock */ -+ .long sys_ni_syscall /* _sys_munlock */ -+ .long sys_ni_syscall /* _sys_mlockall */ -+ .long sys_ni_syscall /* _sys_munlockall */ -+ .long sys_sched_setparam -+ .long sys_sched_getparam /* 155 */ -+ .long sys_sched_setscheduler -+ .long sys_sched_getscheduler -+ .long sys_sched_yield -+ .long sys_sched_get_priority_max -+ .long sys_sched_get_priority_min /* 160 */ -+ .long sys_sched_rr_get_interval -+ .long sys_nanosleep -+ .long sys_ni_syscall /* _sys_mremap */ -+ .long sys_setresuid16 -+ .long sys_getresuid16 /* 165 */ -+ .long sys_getpagesize /* _sys_getpagesize */ -+ .long sys_ni_syscall /* old "query_module" */ -+ .long sys_poll -+ .long sys_ni_syscall /* _sys_nfsservctl */ -+ .long sys_setresgid16 /* 170 */ -+ .long sys_getresgid16 -+ .long sys_prctl -+ .long sys_rt_sigreturn -+ .long sys_rt_sigaction -+ .long sys_rt_sigprocmask /* 175 */ -+ .long sys_rt_sigpending -+ .long sys_rt_sigtimedwait -+ .long sys_rt_sigqueueinfo -+ .long sys_rt_sigsuspend -+ .long sys_pread64 /* 180 */ -+ .long sys_pwrite64 -+ .long sys_lchown16 -+ .long sys_getcwd -+ .long sys_capget -+ .long sys_capset /* 185 */ -+ .long sys_sigaltstack -+ .long sys_sendfile -+ .long sys_ni_syscall /* streams1 */ -+ .long sys_ni_syscall /* streams2 */ -+ .long vfork_intercept /* 190 */ -+ .long sys_getrlimit -+ .long sys_mmap2 -+ .long sys_truncate64 -+ .long sys_ftruncate64 -+ .long sys_stat64 /* 195 */ -+ .long sys_lstat64 -+ .long sys_fstat64 -+ .long sys_chown -+ .long sys_getuid -+ .long sys_getgid /* 200 */ -+ .long sys_geteuid -+ .long sys_getegid -+ .long sys_setreuid -+ .long sys_setregid -+ .long sys_getgroups /* 205 */ -+ .long sys_setgroups -+ .long sys_fchown -+ .long sys_setresuid -+ .long sys_getresuid -+ .long sys_setresgid /* 210 */ -+ .long sys_getresgid -+ .long sys_lchown -+ .long sys_setuid -+ .long sys_setgid -+ .long sys_setfsuid /* 215 */ -+ .long sys_setfsgid -+ .long sys_pivot_root -+ .long sys_ni_syscall -+ .long sys_ni_syscall -+ .long sys_getdents64 /* 220 */ -+ .long sys_gettid -+ .long sys_tkill -+ .long sys_setxattr -+ .long sys_lsetxattr -+ .long sys_fsetxattr /* 225 */ -+ .long sys_getxattr -+ .long sys_lgetxattr -+ .long sys_fgetxattr -+ .long sys_listxattr -+ .long sys_llistxattr /* 230 */ -+ .long sys_flistxattr -+ .long sys_removexattr -+ .long sys_lremovexattr -+ .long sys_fremovexattr -+ .long sys_futex /* 235 */ -+ .long sys_sendfile64 -+ .long sys_ni_syscall /* _sys_mincore */ -+ .long sys_ni_syscall /* _sys_madvise */ -+ .long sys_fcntl64 -+ .long sys_readahead /* 240 */ -+ .long sys_io_setup -+ .long sys_io_destroy -+ .long sys_io_getevents -+ .long sys_io_submit -+ .long sys_io_cancel /* 245 */ -+ .long sys_fadvise64 -+ .long sys_exit_group -+ .long sys_lookup_dcookie -+ .long sys_epoll_create -+ .long sys_epoll_ctl /* 250 */ -+ .long sys_epoll_wait -+ .long sys_ni_syscall /* _sys_remap_file_pages */ -+ .long sys_set_tid_address -+ .long sys_timer_create -+ .long sys_timer_settime /* 255 */ -+ .long sys_timer_gettime -+ .long sys_timer_getoverrun -+ .long sys_timer_delete -+ .long sys_clock_settime -+ .long sys_clock_gettime /* 260 */ -+ .long sys_clock_getres -+ .long sys_clock_nanosleep -+ .long sys_statfs64 -+ .long sys_fstatfs64 -+ .long sys_tgkill /* 265 */ -+ .long sys_utimes -+ .long sys_fadvise64_64 -+ .long sys_mbind -+ .long sys_get_mempolicy -+ .long sys_set_mempolicy /* 270 */ -+ .long sys_mq_open -+ .long sys_mq_unlink -+ .long sys_mq_timedsend -+ .long sys_mq_timedreceive -+ .long sys_mq_notify /* 275 */ -+ .long sys_mq_getsetattr -+ .long sys_waitid -+ .long sys_ni_syscall /* for _sys_vserver */ -+ .long sys_add_key -+ .long sys_request_key /* 280 */ -+ .long sys_keyctl -+ .long sys_ioprio_set -+ .long sys_ioprio_get -+ .long sys_inotify_init -+ .long sys_inotify_add_watch /* 285 */ -+ .long sys_inotify_rm_watch -+ .long sys_migrate_pages -+ .long sys_openat -+ .long sys_mkdirat -+ .long sys_mknodat /* 290 */ -+ .long sys_fchownat -+ .long sys_futimesat -+ .long sys_fstatat64 -+ .long sys_unlinkat -+ .long sys_renameat /* 295 */ -+ .long sys_linkat -+ .long sys_symlinkat -+ .long sys_readlinkat -+ .long sys_fchmodat -+ .long sys_faccessat /* 300 */ -+ .long sys_ni_syscall /* Reserved for pselect6 */ -+ .long sys_ni_syscall /* Reserved for ppoll */ -+ .long sys_unshare -+ .long sys_set_robust_list -+ .long sys_get_robust_list /* 305 */ -+ .long sys_splice -+ .long sys_sync_file_range -+ .long sys_tee -+ .long sys_vmsplice -+ .long sys_move_pages /* 310 */ -+ .long sys_sched_setaffinity -+ .long sys_sched_getaffinity -+ .long sys_kexec_load -+ .long sys_getcpu -+ .long sys_epoll_pwait /* 315 */ -+ .long sys_utimensat -+ .long sys_signalfd -+ .long sys_timerfd_create -+ .long sys_eventfd -+ .long sys_fallocate /* 320 */ -+ .long sys_timerfd_settime -+ .long sys_timerfd_gettime -+ .long sys_ni_syscall /* sys_signalfd4 */ -+ .long sys_ni_syscall /* sys_eventfd2 */ -+ .long sys_ni_syscall /* sys_epoll_create1 */ -+ /* 325 */ -+ .long sys_ni_syscall /* sys_dup3 */ -+ .long sys_ni_syscall /* sys_pipe2 */ -+ .long sys_ni_syscall /* sys_inotify_init1 */ -+ .rept NR_syscalls-(.-sys_call_table)/4 -+ .long sys_ni_syscall -+ .endr -+ ---- /dev/null -+++ b/arch/ubicom32/kernel/sys_ubicom32.c -@@ -0,0 +1,237 @@ -+/* -+ * arch/ubicom32/kernel/sys_ubicom32.c -+ * Ubicom32 architecture system call support implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * This file contains various random system calls that -+ * have a non-standard calling sequence on the Linux/ubicom32 -+ * platform. -+ */ -+ -+#include <linux/module.h> -+#include <linux/errno.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/smp.h> -+#include <linux/sem.h> -+#include <linux/msg.h> -+#include <linux/shm.h> -+#include <linux/stat.h> -+#include <linux/syscalls.h> -+#include <linux/mman.h> -+#include <linux/file.h> -+#include <linux/utsname.h> -+#include <linux/ipc.h> -+#include <linux/fs.h> -+#include <linux/uaccess.h> -+#include <linux/unistd.h> -+ -+#include <asm/setup.h> -+#include <asm/traps.h> -+#include <asm/cacheflush.h> -+ -+/* common code for old and new mmaps */ -+static inline long do_mmap2( -+ unsigned long addr, unsigned long len, -+ unsigned long prot, unsigned long flags, -+ unsigned long fd, unsigned long pgoff) -+{ -+ int error = -EBADF; -+ struct file *file = NULL; -+ -+ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); -+ if (!(flags & MAP_ANONYMOUS)) { -+ file = fget(fd); -+ if (!file) -+ goto out; -+ } -+ -+ down_write(¤t->mm->mmap_sem); -+ error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); -+ up_write(¤t->mm->mmap_sem); -+ -+ if (file) -+ fput(file); -+out: -+ return error; -+} -+ -+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, -+ unsigned long prot, unsigned long flags, -+ unsigned long fd, unsigned long pgoff) -+{ -+ return do_mmap2(addr, len, prot, flags, fd, pgoff); -+} -+ -+/* -+ * Perform the select(nd, in, out, ex, tv) and mmap() system -+ * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to -+ * handle more than 4 system call parameters, so these system calls -+ * used a memory block for parameter passing.. -+ */ -+ -+struct mmap_arg_struct { -+ unsigned long addr; -+ unsigned long len; -+ unsigned long prot; -+ unsigned long flags; -+ unsigned long fd; -+ unsigned long offset; -+}; -+ -+asmlinkage int old_mmap(struct mmap_arg_struct *arg) -+{ -+ struct mmap_arg_struct a; -+ int error = -EFAULT; -+ -+ if (copy_from_user(&a, arg, sizeof(a))) -+ goto out; -+ -+ error = -EINVAL; -+ if (a.offset & ~PAGE_MASK) -+ goto out; -+ -+ a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); -+ -+ error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, -+ a.offset >> PAGE_SHIFT); -+out: -+ return error; -+} -+ -+struct sel_arg_struct { -+ unsigned long n; -+ fd_set *inp, *outp, *exp; -+ struct timeval *tvp; -+}; -+ -+asmlinkage int old_select(struct sel_arg_struct *arg) -+{ -+ struct sel_arg_struct a; -+ -+ if (copy_from_user(&a, arg, sizeof(a))) -+ return -EFAULT; -+ /* sys_select() does the appropriate kernel locking */ -+ return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp); -+} -+ -+/* -+ * sys_ipc() is the de-multiplexer for the SysV IPC calls.. -+ * -+ * This is really horribly ugly. -+ */ -+asmlinkage int sys_ipc(uint call, int first, int second, -+ int third, void *ptr, long fifth) -+{ -+ int version, ret; -+ -+ version = call >> 16; /* hack for backward compatibility */ -+ call &= 0xffff; -+ -+ if (call <= SEMCTL) -+ switch (call) { -+ case SEMOP: -+ return sys_semop(first, (struct sembuf *)ptr, second); -+ case SEMGET: -+ return sys_semget(first, second, third); -+ case SEMCTL: { -+ union semun fourth; -+ if (!ptr) -+ return -EINVAL; -+ if (get_user(fourth.__pad, (void **) ptr)) -+ return -EFAULT; -+ return sys_semctl(first, second, third, fourth); -+ } -+ default: -+ return -EINVAL; -+ } -+ if (call <= MSGCTL) -+ switch (call) { -+ case MSGSND: -+ return sys_msgsnd(first, (struct msgbuf *) ptr, -+ second, third); -+ case MSGRCV: -+ switch (version) { -+ case 0: { -+ struct ipc_kludge tmp; -+ if (!ptr) -+ return -EINVAL; -+ if (copy_from_user(&tmp, -+ (struct ipc_kludge *)ptr, -+ sizeof(tmp))) -+ return -EFAULT; -+ return sys_msgrcv(first, tmp.msgp, second, -+ tmp.msgtyp, third); -+ } -+ default: -+ return sys_msgrcv(first, -+ (struct msgbuf *) ptr, -+ second, fifth, third); -+ } -+ case MSGGET: -+ return sys_msgget((key_t) first, second); -+ case MSGCTL: -+ return sys_msgctl(first, second, -+ (struct msqid_ds *) ptr); -+ default: -+ return -EINVAL; -+ } -+ if (call <= SHMCTL) -+ switch (call) { -+ case SHMAT: -+ switch (version) { -+ default: { -+ ulong raddr; -+ ret = do_shmat(first, ptr, second, &raddr); -+ if (ret) -+ return ret; -+ return put_user(raddr, (ulong __user *) third); -+ } -+ } -+ case SHMDT: -+ return sys_shmdt(ptr); -+ case SHMGET: -+ return sys_shmget(first, second, third); -+ case SHMCTL: -+ return sys_shmctl(first, second, ptr); -+ default: -+ return -ENOSYS; -+ } -+ -+ return -EINVAL; -+} -+ -+/* sys_cacheflush -- flush (part of) the processor cache. */ -+asmlinkage int -+sys_cacheflush(unsigned long addr, int scope, int cache, unsigned long len) -+{ -+ flush_cache_all(); -+ return 0; -+} -+ -+asmlinkage int sys_getpagesize(void) -+{ -+ return PAGE_SIZE; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/thread.c -@@ -0,0 +1,228 @@ -+/* -+ * arch/ubicom32/kernel/thread.c -+ * Ubicom32 architecture hardware thread support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/sched.h> -+#include <linux/interrupt.h> -+#include <linux/irq.h> -+#include <linux/profile.h> -+#include <linux/clocksource.h> -+#include <linux/types.h> -+#include <asm/ip5000.h> -+#include <asm/machdep.h> -+#include <asm/asm-offsets.h> -+#include <asm/thread.h> -+ -+/* -+ * TODO: At some point change the name here to be thread_ksp -+ */ -+unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX]; -+ -+static unsigned int thread_mask = -1; -+static unsigned int thread_mainline_mask; -+ -+/* -+ * thread_entry() -+ * Returning from the called function will disable the thread. -+ * -+ * This could be a naked call to allow for hwthreads that do not have stacks. -+ * However, with -O0, the code still writes to thex stack, and this was -+ * corrupting memory just after the callers stack. -+ */ -+static void thread_entry(void *arg, thread_exec_fn_t exec) -+{ -+ /* -+ * Call thread function -+ */ -+ exec(arg); -+ -+ /* -+ * Complete => Disable self -+ */ -+ thread_disable(thread_get_self()); -+} -+ -+/* -+ * thread_start() -+ * Start the specified function on the specified hardware thread. -+ */ -+thread_t thread_start(thread_t thread, -+ thread_exec_fn_t exec, -+ void *arg, -+ unsigned int *sp_high, -+ thread_type_t type) -+{ -+ /* -+ * Sanity check -+ */ -+ unsigned int enabled, mask, csr; -+ asm volatile ( -+ "move.4 %0, MT_EN\n\t" -+ : "=m" (enabled) -+ ); -+ -+ mask = 1 << thread; -+ if (enabled & mask) { -+ printk(KERN_WARNING "request to enable a previously enabled thread\n"); -+ return (thread_t)-1; -+ } -+ -+ /* -+ * Update thread state -+ */ -+ csr = (thread << 15) | (1 << 14); -+ asm volatile ( -+ "setcsr %0 \n\t" -+ "setcsr_flush 0 \n\t" -+ -+ "move.4 A0, #0 \n\t" -+ "move.4 A1, #0 \n\t" -+ "move.4 A2, #0 \n\t" -+ "move.4 A3, #0 \n\t" -+ "move.4 A4, #0 \n\t" -+ "move.4 A5, #0 \n\t" -+ "move.4 A6, #0 \n\t" -+ "move.4 SP, %4 \n\t" /* A7 is SP */ -+ -+ "move.4 D0, %3 \n\t" -+ "move.4 D1, %2 \n\t" -+ "move.4 D2, #0 \n\t" -+ "move.4 D3, #0 \n\t" -+ "move.4 D4, #0 \n\t" -+ "move.4 D5, #0 \n\t" -+ "move.4 D6, #0 \n\t" -+ "move.4 D7, #0 \n\t" -+ "move.4 D8, #0 \n\t" -+ "move.4 D9, #0 \n\t" -+ "move.4 D10, #0 \n\t" -+ "move.4 D11, #0 \n\t" -+ "move.4 D12, #0 \n\t" -+ "move.4 D13, #0 \n\t" -+ "move.4 D14, #0 \n\t" -+ "move.4 D15, #0 \n\t" -+ -+ "move.4 INT_MASK0, #0 \n\t" -+ "move.4 INT_MASK1, #0 \n\t" -+ "move.4 PC, %1 \n\t" -+ "setcsr #0 \n\t" -+ "setcsr_flush 0 \n\t" -+ : -+ : "r" (csr), "r" (thread_entry), "r" (exec), -+ "r" (arg), "r" (sp_high) -+ ); -+ -+ /* -+ * Apply HRT state -+ */ -+ if (type & THREAD_TYPE_HRT) { -+ asm volatile ( -+ "or.4 MT_HRT, MT_HRT, %0\n\t" -+ : -+ : "d" (mask) -+ : "cc" -+ ); -+ } else { -+ asm volatile ( -+ "and.4 MT_HRT, MT_HRT, %0\n\t" -+ : -+ : "d" (~mask) -+ : "cc" -+ ); -+ } -+ -+ /* -+ * Set priority -+ */ -+ asm volatile ( -+ "or.4 MT_HPRI, MT_HPRI, %0\n\t" -+ : -+ : "d" (mask) -+ : "cc" -+ ); -+ -+ /* -+ * Enable thread -+ */ -+ asm volatile ( -+ "move.4 MT_ACTIVE_SET, %0 \n\t" -+ : -+ : "d" (mask) -+ ); -+ thread_enable_mask(mask); -+ return thread; -+} -+ -+/* -+ * thread_get_mainline() -+ * Return a mask of those threads that are Linux mainline threads. -+ */ -+unsigned int thread_get_mainline(void) -+{ -+ return thread_mainline_mask; -+} -+ -+/* -+ * thread_set_mainline() -+ * Indicate that the specified thread is a Linux mainline thread. -+ */ -+void thread_set_mainline(thread_t tid) -+{ -+ thread_mainline_mask |= (1 << tid); -+} -+ -+/* -+ * thread_alloc() -+ * Allocate an unused hardware thread. -+ */ -+thread_t thread_alloc(void) -+{ -+ thread_t tid; -+ -+ /* -+ * If this is the first time we are here get the list of unused -+ * threads from the processor device tree node. -+ */ -+ if (thread_mask == -1) { -+ thread_mask = processor_threads(); -+ } -+ -+ if (!thread_mask) { -+ return (thread_t)-1; -+ } -+ -+ tid = ffs(thread_mask); -+ if (tid != 0) { -+ tid--; -+ thread_mask &= ~(1 << tid); -+ return tid; -+ } -+ -+ return (thread_t)-1; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/time.c -@@ -0,0 +1,212 @@ -+/* -+ * arch/ubicom32/kernel/time.c -+ * Initialize the timer list and start the appropriate timers. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1991, 1992, 1995 Linus Torvalds -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/profile.h> -+#include <linux/smp.h> -+#include <asm/ip5000.h> -+#include <asm/machdep.h> -+ -+/* -+ * A bitmap of the timers on the processor indicates -+ * that the timer is free or in-use. -+ */ -+static unsigned int timers; -+ -+/* -+ * timer_set() -+ * Init the specified compare register to go off <n> cycles from now. -+ */ -+void timer_set(int timervector, unsigned int cycles) -+{ -+ int idx = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector); -+ UBICOM32_IO_TIMER->syscom[idx] = -+ UBICOM32_IO_TIMER->sysval + cycles; -+ ldsr_enable_vector(timervector); -+} -+ -+/* -+ * timer_reset() -+ * Set/reset the timer to go off again. -+ * -+ * Because sysval is a continuous timer, this function is able -+ * to ensure that we do not have clock sku by using the previous -+ * value in syscom to set the next value for syscom. -+ * -+ * Returns the number of ticks that transpired since the last event. -+ */ -+int timer_reset(int timervector, unsigned int cycles) -+{ -+ /* -+ * Reset the timer in the LDSR thread to go off appropriately. -+ * -+ * Use the previous value of the timer to calculate the new stop -+ * time. This allows us to account for it taking an -+ * indeterminate amount of time to get here. -+ */ -+ const int timer_index = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector); -+ unsigned int prev = UBICOM32_IO_TIMER->syscom[timer_index]; -+ unsigned int next = prev + cycles; -+ int scratchpad3; -+ int diff; -+ int ticks = 1; -+ -+ /* -+ * If the difference is negative, we have missed at least one -+ * timer tick. -+ * -+ * TODO: Decide if we want to "ignore" time (as done below) or -+ * if we want to process time (unevenly) by calling timer_tick() -+ * lost_ticks times. -+ */ -+ while (1) { -+ /* -+ * Set our future time first. -+ */ -+ UBICOM32_IO_TIMER->syscom[timer_index] = next; -+ -+ /* -+ * Then check if we are really set time in the futrue. -+ */ -+ diff = (int)next - (int)UBICOM32_IO_TIMER->sysval; -+ if (diff >= 0) { -+ break; -+ } -+ -+ /* -+ * Oops, we are too slow. Playing catch up. -+ * -+ * If the debugger is connected the there is a good -+ * chance that we lost time because we were in a -+ * break-point, so in this case we do not print out -+ * diagnostics. -+ */ -+ asm volatile ("move.4 %0, scratchpad3" -+ : "=r" (scratchpad3)); -+ if ((scratchpad3 & 0x1) == 0) { -+ /* -+ * No debugger attached, print to the console -+ */ -+ printk(KERN_EMERG "diff: %d, timer has lost %u " -+ "ticks [rounded up]\n", -+ -diff, -+ (unsigned int)((-diff + cycles - 1) / cycles)); -+ } -+ -+ do { -+ next += cycles; -+ diff = (int)next - (int)UBICOM32_IO_TIMER->sysval; -+ ticks++; -+ } while (diff < 0); -+ } -+ return ticks; -+} -+ -+/* -+ * sched_clock() -+ * Returns current time in nano-second units. -+ * -+ * Notes: -+ * 1) This is an override for the weak alias in -+ * kernel/sched_clock.c. -+ * 2) Do not use xtime_lock as this function is -+ * sometimes called with xtime_lock held. -+ * 3) We use a retry algorithm to ensure that -+ * we get a consistent value. -+ * 4) sched_clock must be overwritten if IRQ tracing -+ * is enabled because the default implementation uses -+ * the xtime_lock sequence while holding xtime_lock. -+ */ -+unsigned long long sched_clock(void) -+{ -+ unsigned long long my_jiffies; -+ unsigned long jiffies_top; -+ unsigned long jiffies_bottom; -+ -+ do { -+ jiffies_top = jiffies_64 >> 32; -+ jiffies_bottom = jiffies_64 & 0xffffffff; -+ } while (unlikely(jiffies_top != (unsigned long)(jiffies_64 >> 32))); -+ -+ my_jiffies = ((unsigned long long)jiffies_top << 32) | (jiffies_bottom); -+ return (my_jiffies - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ); -+} -+ -+/* -+ * timer_free() -+ * Free a hardware timer. -+ */ -+void timer_free(int interrupt) -+{ -+ unsigned int bit = interrupt - TIMER_INT(0); -+ -+ /* -+ * The timer had not been allocated. -+ */ -+ BUG_ON(timers & (1 << bit)); -+ timers |= (1 << bit); -+} -+ -+/* -+ * timer_alloc() -+ * Allocate a hardware timer. -+ */ -+int timer_alloc(void) -+{ -+ unsigned int bit = find_first_bit((unsigned long *)&timers, 32); -+ if (!bit) { -+ printk(KERN_WARNING "no more free timers\n"); -+ return -1; -+ } -+ -+ timers &= ~(1 << bit); -+ return bit + TIMER_INT(0); -+} -+ -+/* -+ * time_init() -+ * Time init function. -+ */ -+void time_init(void) -+{ -+ /* -+ * Find the processor node and determine what timers are -+ * available for us. -+ */ -+ timers = processor_timers(); -+ if (timers == 0) { -+ printk(KERN_WARNING "no timers are available for Linux\n"); -+ return; -+ } -+ -+#ifdef CONFIG_GENERIC_CLOCKEVENTS -+ timer_device_init(); -+#else -+ timer_tick_init(); -+#endif -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/timer_broadcast.c -@@ -0,0 +1,102 @@ -+/* -+ * arch/ubicom32/kernel/timer_broadcast.c -+ * Implements a dummy clock event for each cpu. -+ * -+ * Copyright (C) 2008 Paul Mundt -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * arch/arm -+ * arch/sh -+ */ -+#include <linux/init.h> -+#include <linux/kernel.h> -+#include <linux/delay.h> -+#include <linux/device.h> -+#include <linux/smp.h> -+#include <linux/jiffies.h> -+#include <linux/percpu.h> -+#include <linux/clockchips.h> -+#include <linux/irq.h> -+ -+static DEFINE_PER_CPU(struct clock_event_device, local_clockevent); -+ -+/* -+ * The broadcast trick only works when the timer will be used in a periodic mode. -+ * If the user has configured either NO_HZ or HIGH_RES_TIMERS they must have -+ * a per cpu timer. -+ */ -+#if defined(CONFIG_NO_HZ) || defined(CONFIG_HIGH_RES_TIMERS) -+#error "Tickless and High Resolution Timers require per-CPU local timers: CONFIG_LOCAL_TIMERS" -+#endif -+ -+/* -+ * local_timer_interrupt() -+ * Used on SMP for local timer interrupt sent via an IPI. -+ */ -+void local_timer_interrupt(void) -+{ -+ struct clock_event_device *dev = &__get_cpu_var(local_clockevent); -+ -+ dev->event_handler(dev); -+} -+ -+/* -+ * dummy_timer_set_next_event() -+ * Cause the timer to go off "cycles" from now. -+ */ -+static int dummy_timer_set_next_event(unsigned long cycles, struct clock_event_device *dev) -+{ -+ return 0; -+} -+ -+/* -+ * dummy_timer_set_mode() -+ * Do Nothing. -+ */ -+static void dummy_timer_set_mode(enum clock_event_mode mode, -+ struct clock_event_device *clk) -+{ -+} -+ -+/* -+ * local_timer_setup() -+ * Adds a clock event for the specified cpu. -+ */ -+int __cpuinit local_timer_setup(unsigned int cpu) -+{ -+ struct clock_event_device *dev = &per_cpu(local_clockevent, cpu); -+ -+ dev->name = "timer-dummy"; -+ dev->features = CLOCK_EVT_FEAT_DUMMY; -+ dev->rating = 200; -+ dev->mult = 1; -+ dev->set_mode = dummy_timer_set_mode; -+ dev->set_next_event = dummy_timer_set_next_event; -+ dev->broadcast = smp_timer_broadcast; -+ dev->cpumask = cpumask_of_cpu(cpu); -+ dev->irq = -1; -+ printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name); -+ -+ clockevents_register_device(dev); -+ return 0; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/timer_device.c -@@ -0,0 +1,302 @@ -+/* -+ * arch/ubicom32/kernel/timer_device.c -+ * Implements a Ubicom32 clock device and event devices. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/types.h> -+#include <linux/clockchips.h> -+#include <linux/clocksource.h> -+#include <linux/spinlock.h> -+#include <asm/ip5000.h> -+#include <asm/machdep.h> -+ -+#if defined(CONFIG_SMP) -+#include <asm/smp.h> -+#endif -+ -+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -+#define MAX_TIMERS (2 + CONFIG_TIMER_EXTRA_ALLOC) -+#else -+#define MAX_TIMERS (NR_CPUS + CONFIG_TIMER_EXTRA_ALLOC) -+#endif -+ -+#if (MAX_TIMERS > 10) -+#error "Ubicom32 only has 10 timers" -+#endif -+ -+static unsigned int frequency; -+static struct clock_event_device timer_device_devs[MAX_TIMERS]; -+static struct irqaction timer_device_irqs[MAX_TIMERS]; -+static int timer_device_next_timer = 0; -+ -+DEFINE_SPINLOCK(timer_device_lock); -+ -+/* -+ * timer_device_set_next_event() -+ * Cause the timer to go off "cycles" from now. -+ */ -+static int timer_device_set_next_event(unsigned long cycles, struct clock_event_device *dev) -+{ -+ timer_set(dev->irq, cycles); -+ return 0; -+} -+ -+/* -+ * timer_device_set_mode() -+ * Handle the mode switch for a clock event device. -+ */ -+static void timer_device_set_mode(enum clock_event_mode mode, struct clock_event_device *dev) -+{ -+ switch (mode) { -+ case CLOCK_EVT_MODE_SHUTDOWN: -+ /* -+ * Make sure the vector is disabled -+ * until the next event is set. -+ */ -+ printk(KERN_NOTICE "timer[%d]: shutdown\n", dev->irq); -+ ldsr_disable_vector(dev->irq); -+ break; -+ -+ case CLOCK_EVT_MODE_ONESHOT: -+ /* -+ * Make sure the vector is disabled -+ * until the next event is set. -+ */ -+ printk(KERN_NOTICE "timer[%d]: oneshot\n", dev->irq); -+ ldsr_disable_vector(dev->irq); -+ break; -+ -+ case CLOCK_EVT_MODE_PERIODIC: -+ /* -+ * The periodic request is 1 per jiffies -+ */ -+ printk(KERN_NOTICE "timer[%d]: periodic: %d cycles\n", -+ dev->irq, frequency / CONFIG_HZ); -+ timer_set(dev->irq, frequency / CONFIG_HZ); -+ break; -+ -+ case CLOCK_EVT_MODE_UNUSED: -+ case CLOCK_EVT_MODE_RESUME: -+ printk(KERN_WARNING "timer[%d]: unimplemented mode: %d\n", -+ dev->irq, mode); -+ break; -+ }; -+} -+ -+/* -+ * timer_device_event() -+ * Call the device's event handler. -+ * -+ * The pointer is initialized by the generic Linux code -+ * to the function to be called. -+ */ -+static irqreturn_t timer_device_event(int irq, void *dev_id) -+{ -+ struct clock_event_device *dev = (struct clock_event_device *)dev_id; -+ -+ if (dev->mode == CLOCK_EVT_MODE_PERIODIC) { -+ /* -+ * The periodic request is 1 per jiffies -+ */ -+ timer_reset(dev->irq, frequency / CONFIG_HZ); -+ } else { -+ /* -+ * The timer will go off again at the rollover -+ * point. We must disable the IRQ to prevent -+ * getting a spurious interrupt. -+ */ -+ ldsr_disable_vector(dev->irq); -+ } -+ -+ if (!dev->event_handler) { -+ printk(KERN_CRIT "no registered event handler\n"); -+ return IRQ_HANDLED; -+ } -+ -+ dev->event_handler(dev); -+ return IRQ_HANDLED; -+} -+ -+/* -+ * timer_device_clockbase_read() -+ * Provide a primary clocksource around the sysval timer. -+ */ -+static cycle_t timer_device_clockbase_read(void) -+{ -+ return (cycle_t)UBICOM32_IO_TIMER->sysval; -+} -+ -+/* -+ * Primary Clock Source Description -+ * -+ * We use 24 for the shift factor because we want -+ * to ensure there are less than 2^24 clocks -+ * in a jiffie of 10 ms. -+ */ -+static struct clocksource timer_device_clockbase = { -+ .name = "sysval", -+ .rating = 400, -+ .flags = CLOCK_SOURCE_IS_CONTINUOUS, -+ .mask = CLOCKSOURCE_MASK(32), -+ .shift = 24, -+ .mult = 0, -+ .read = timer_device_clockbase_read, -+}; -+ -+/* -+ * timer_device_alloc_event() -+ * Allocate a timer device event. -+ */ -+static int timer_device_alloc_event(const char *name, int cpuid, cpumask_t mask) -+{ -+ struct clock_event_device *dev; -+ struct irqaction *action; -+ -+ /* -+ * Are we out of configured timers? -+ */ -+ spin_lock(&timer_device_lock); -+ if (timer_device_next_timer >= MAX_TIMERS) { -+ spin_unlock(&timer_device_lock); -+ printk(KERN_WARNING "out of timer event entries\n"); -+ return -1; -+ } -+ dev = &timer_device_devs[timer_device_next_timer]; -+ action = &timer_device_irqs[timer_device_next_timer]; -+ timer_device_next_timer++; -+ spin_unlock(&timer_device_lock); -+ -+ /* -+ * Now allocate a timer to ourselves. -+ */ -+ dev->irq = timer_alloc(); -+ if (dev->irq == -1) { -+ spin_lock(&timer_device_lock); -+ timer_device_next_timer--; -+ spin_unlock(&timer_device_lock); -+ printk(KERN_WARNING "out of hardware timers\n"); -+ return -1; -+ } -+ -+ /* -+ * Init the IRQ action structure. Make sure -+ * this in place before you register the clock -+ * event device. -+ */ -+ action->name = name; -+ action->flags = IRQF_DISABLED | IRQF_TIMER; -+ action->handler = timer_device_event; -+ action->mask = mask; -+ action->dev_id = dev; -+ setup_irq(dev->irq, action); -+ irq_set_affinity(dev->irq, mask); -+ ldsr_disable_vector(dev->irq); -+ -+ /* -+ * init clock dev structure. -+ * -+ * The min_delta_ns is chosen to ensure that setting next -+ * event will never be requested with too small of value. -+ */ -+ dev->name = name; -+ dev->rating = timer_device_clockbase.rating; -+ dev->shift = timer_device_clockbase.shift; -+ dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; -+ dev->set_mode = timer_device_set_mode; -+ dev->set_next_event = timer_device_set_next_event; -+ dev->mult = div_sc(frequency, NSEC_PER_SEC, dev->shift); -+ dev->max_delta_ns = clockevent_delta2ns(0xffffffff, dev); -+ dev->min_delta_ns = clockevent_delta2ns(100, dev); -+ dev->cpumask = mask; -+ printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name); -+ -+ /* -+ * Now register the device. -+ */ -+ clockevents_register_device(dev); -+ return dev->irq; -+} -+ -+#if defined(CONFIG_LOCAL_TIMERS) -+/* -+ * local_timer_setup() -+ * Allocation function for creating a per cpu local timer. -+ */ -+int __cpuinit local_timer_setup(unsigned int cpu) -+{ -+ return timer_device_alloc_event("timer-cpu", cpu, cpumask_of_cpu(cpu)); -+} -+#endif -+ -+/* -+ * timer_device_init() -+ * Create and init a generic clock driver for Ubicom32. -+ */ -+void timer_device_init(void) -+{ -+ int i; -+ -+ /* -+ * Get the frequency from the processor device tree node or use -+ * the default if not available. We will store this as the frequency -+ * of the timer to avoid future calculations. -+ */ -+ frequency = processor_frequency(); -+ if (frequency == 0) { -+ frequency = CLOCK_TICK_RATE; -+ } -+ -+ /* -+ * Setup the primary clock source around sysval. Linux does not -+ * supply a Mhz multiplier so convert down to khz. -+ */ -+ timer_device_clockbase.mult = -+ clocksource_khz2mult(frequency / 1000, -+ timer_device_clockbase.shift); -+ if (clocksource_register(&timer_device_clockbase)) { -+ printk(KERN_ERR "timer: clocksource failed to register\n"); -+ return; -+ } -+ -+ /* -+ * Always allocate a primary timer. -+ */ -+ timer_device_alloc_event("timer-primary", -1, CPU_MASK_ALL); -+ -+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -+ /* -+ * If BROADCAST is selected we need to add a broadcast timer. -+ */ -+ timer_device_alloc_event("timer-broadcast", -1, CPU_MASK_ALL); -+#endif -+ -+ /* -+ * Allocate extra timers that are requested. -+ */ -+ for (i = 0; i < CONFIG_TIMER_EXTRA_ALLOC; i++) { -+ timer_device_alloc_event("timer-extra", -1, CPU_MASK_ALL); -+ } -+} -+ ---- /dev/null -+++ b/arch/ubicom32/kernel/timer_tick.c -@@ -0,0 +1,109 @@ -+/* -+ * arch/ubicom32/kernel/timer_tick.c -+ * Impelemets a perodic timer. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1991, 1992, 1995 Linus Torvalds -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/profile.h> -+ -+#include <asm/ip5000.h> -+#include <asm/machdep.h> -+#if defined(CONFIG_SMP) -+#include <asm/smp.h> -+#endif -+ -+static unsigned int timervector; -+static unsigned int frequency; -+ -+/* -+ * timer_tick() -+ * Kernel system timer support. Needs to keep up the real-time clock, -+ * as well as call the "do_timer()" routine every clocktick. -+ */ -+static irqreturn_t timer_tick(int irq, void *dummy) -+{ -+ int ticks; -+ -+ BUG_ON(!irqs_disabled()); -+ ticks = timer_reset(timervector, frequency); -+ -+ write_seqlock(&xtime_lock); -+ do_timer(ticks); -+ write_sequnlock(&xtime_lock); -+ -+ update_process_times(user_mode(get_irq_regs())); -+ profile_tick(CPU_PROFILING); -+ -+#if defined(CONFIG_SMP) -+ smp_send_timer_all(); -+#endif -+ return(IRQ_HANDLED); -+} -+ -+/* -+ * Data used by setup_irq for the timer. -+ */ -+static struct irqaction timer_irq = { -+ .name = "timer", -+ .flags = IRQF_DISABLED | IRQF_TIMER, -+ .handler = timer_tick, -+}; -+ -+/* -+ * timer_tick_init() -+ * Implements a periodic timer -+ * -+ * This implementation directly calls the timer_tick() and move -+ * the Linux kernel forward. This is used when the user has not -+ * selected GENERIC_CLOCKEVENTS. -+ */ -+void timer_tick_init(void) -+{ -+ /* -+ * Now allocate a timer to ourselves. -+ */ -+ timervector = timer_alloc(); -+ if (timervector == -1) { -+ printk(KERN_WARNING "where did the timer go?\n"); -+ return; -+ } -+ -+ setup_irq(timervector, &timer_irq); -+ -+ /* -+ * Get the frequency from the processor device tree node or use -+ * the default if not available. We will store this as the frequency -+ * of the timer to avoid future calculations. -+ */ -+ frequency = processor_frequency(); -+ if (frequency == 0) { -+ frequency = CLOCK_TICK_RATE; -+ } -+ frequency /= CONFIG_HZ; -+ -+ printk(KERN_NOTICE "timer will interrupt every: %d cycles\n", frequency); -+ timer_set(timervector, frequency); -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/topology.c -@@ -0,0 +1,47 @@ -+/* -+ * arch/ubicom32/kernel/topology.c -+ * Ubicom32 architecture sysfs topology information. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/init.h> -+#include <linux/smp.h> -+#include <linux/cpu.h> -+#include <linux/cache.h> -+ -+static struct cpu cpu_devices[NR_CPUS] __read_mostly; -+ -+static int __init topology_init(void) -+{ -+ int num; -+ -+ for_each_present_cpu(num) { -+ cpu_devices[num].hotpluggable = 0; -+ register_cpu(&cpu_devices[num], num); -+ } -+ return 0; -+} -+ -+subsys_initcall(topology_init); ---- /dev/null -+++ b/arch/ubicom32/kernel/traps.c -@@ -0,0 +1,510 @@ -+/* -+ * arch/ubicom32/kernel/traps.c -+ * Ubicom32 architecture trap handling support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+/* -+ * Sets up all exception vectors -+ */ -+#include <linux/sched.h> -+#include <linux/signal.h> -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/a.out.h> -+#include <linux/user.h> -+#include <linux/string.h> -+#include <linux/linkage.h> -+#include <linux/init.h> -+#include <linux/ptrace.h> -+#include <linux/kallsyms.h> -+#include <linux/compiler.h> -+#include <linux/stacktrace.h> -+#include <linux/personality.h> -+ -+#include <asm/uaccess.h> -+#include <asm/stacktrace.h> -+#include <asm/devtree.h> -+#include <asm/setup.h> -+#include <asm/fpu.h> -+#include <asm/system.h> -+#include <asm/traps.h> -+#include <asm/pgtable.h> -+#include <asm/machdep.h> -+#include <asm/siginfo.h> -+#include <asm/ip5000.h> -+#include <asm/thread.h> -+ -+#define TRAP_MAX_STACK_DEPTH 20 -+ -+/* -+ * These symbols are filled in by the linker. -+ */ -+extern unsigned long _stext; -+extern unsigned long _etext; -+ -+extern unsigned long __ocm_text_run_begin; -+extern unsigned long __data_begin; -+ -+const char *trap_cause_strings[] = { -+ /*0*/ "inst address decode error", -+ /*1*/ "inst sync error", -+ /*2*/ "inst illegal", -+ /*3*/ "src1 address decode error", -+ /*4*/ "dst address decode error", -+ /*5*/ "src1 alignment error", -+ /*6*/ "dst alignment error", -+ /*7*/ "src1 sync error", -+ /*8*/ "dst sync error", -+ /*9*/ "DCAPT error", -+ /*10*/ "inst range error", -+ /*11*/ "src1 range error", -+ /*12*/ "dst range error", -+}; -+ -+/* -+ * The device tree trap node definition. -+ */ -+struct trapnode { -+ struct devtree_node dn; -+ unsigned int intthread; -+}; -+ -+static struct trapnode *tn;; -+ -+/* -+ * trap_interrupt_handler() -+ * Software Interrupt to ensure that a trap is serviced. -+ */ -+static irqreturn_t trap_interrupt_handler(int irq, void *dummy) -+{ -+ /* Do Nothing */ -+ return IRQ_HANDLED; -+} -+ -+/* -+ * Data used by setup_irq for the timer. -+ */ -+static struct irqaction trap_irq = { -+ .name = "trap", -+ .flags = IRQF_DISABLED, -+ .handler = trap_interrupt_handler, -+}; -+ -+/* -+ * trap_cause_to_str() -+ * Convert a trap_cause into a series of printk -+ */ -+static void trap_cause_to_str(long status) -+{ -+ int bit; -+ -+ if ((status & ((1 << TRAP_CAUSE_TOTAL) - 1)) == 0) { -+ printk(KERN_NOTICE "decode: UNKNOWN CAUSES\n"); -+ return; -+ } -+ -+ for (bit = 0; bit < TRAP_CAUSE_TOTAL; bit++) { -+ if (status & (1 << bit)) { -+ printk(KERN_NOTICE "\tdecode: %08x %s\n", -+ 1 << bit, trap_cause_strings[bit]); -+ } -+ } -+} -+ -+/* -+ * trap_print_information() -+ * Print the cause of the trap and additional info. -+ */ -+static void trap_print_information(const char *str, struct pt_regs *regs) -+{ -+ printk(KERN_WARNING "\n"); -+ -+ if (current) { -+ printk(KERN_WARNING "Process %s (pid: %d)\n", -+ current->comm, current->pid); -+ } -+ -+ if (current && current->mm) { -+ printk(KERN_NOTICE "text = 0x%p-0x%p data = 0x%p-0x%p\n" -+ KERN_NOTICE "bss = 0x%p-0x%p user-stack = 0x%p\n" -+ KERN_NOTICE "\n", -+ (void *)current->mm->start_code, -+ (void *)current->mm->end_code, -+ (void *)current->mm->start_data, -+ (void *)current->mm->end_data, -+ (void *)current->mm->end_data, -+ (void *)current->mm->brk, -+ (void *)current->mm->start_stack); -+ } -+ -+ printk(KERN_WARNING "%s: Causes: 0x%08x\n", str, -+ (unsigned int)regs->trap_cause); -+ trap_cause_to_str(regs->trap_cause); -+ show_regs(regs); -+ show_stack(NULL, (unsigned long *)regs->an[7]); -+ printk(KERN_NOTICE "--- End Trap --- \n"); -+} -+ -+/* -+ * dump_stack() -+ * Dump the stack of the current task. -+ */ -+void dump_stack(void) -+{ -+ show_stack(NULL, NULL); -+} -+EXPORT_SYMBOL(dump_stack); -+ -+/* -+ * show_stack() -+ * Print out information from the current stack. -+ */ -+void show_stack(struct task_struct *task, unsigned long *sp) -+{ -+ /* -+ * Allocate just enough entries on the stack. -+ */ -+ unsigned int calls[TRAP_MAX_STACK_DEPTH]; -+ unsigned long code_start = (unsigned long)CONFIG_RAMBASE; -+ unsigned long code_end = (unsigned long)CONFIG_RAMBASE+CONFIG_RAMSIZE; -+ unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin; -+ unsigned long ocm_code_end = (unsigned long)&__data_begin; -+ unsigned long stack_end = (unsigned long)(current->stack + THREAD_SIZE - 8); -+ unsigned long stack = (unsigned long)sp; -+ int kernel_stack = 1; -+ -+ /* -+ * Which task are we talking about. -+ */ -+ if (!task) { -+ task = current; -+ } -+ -+ /* -+ * Find the stack for the task if one was not specified. Otherwise -+ * use the specified stack. -+ */ -+ if (!stack) { -+ if (task != current) { -+ stack = task->thread.sp; -+ stack_end = (unsigned long)task->stack + THREAD_SIZE - 8; -+ } else { -+ asm volatile ( -+ "move.4 %0, SP \n\t" -+ : "=r" (stack) -+ ); -+ } -+ } -+ -+ printk(KERN_NOTICE "Starting backtrace: PID %d '%s'\n", -+ task->pid, task->comm); -+ -+ /* -+ * We do 2 passes the first pass is Kernel stack is the second -+ * User stack. -+ */ -+ while (kernel_stack) { -+ unsigned long *handle; -+ unsigned int i, idx = 0; -+ struct pt_regs *pt = task_pt_regs(task); -+ -+ /* -+ * If the task is in user mode, reset the start -+ * and end values for text. -+ */ -+ if (__user_mode(stack)) { -+ if (!(task->personality & FDPIC_FUNCPTRS)) { -+ printk(KERN_NOTICE " User Stack:\n"); -+ code_start = task->mm->start_code; -+ code_end = task->mm->end_code; -+ } else { -+ printk(KERN_NOTICE " User Stack (fdpic):\n"); -+ -+ } -+ stack_end = task->mm->start_stack; -+ ocm_code_end = ocm_code_start = 0; -+ kernel_stack = 0; -+ } else { -+ printk(KERN_NOTICE " Kernel Stack:\n"); -+ } -+ -+ /* -+ * Collect the stack back trace information. -+ */ -+ printk(" code[0x%lx-0x%lx]", code_start, code_end); -+ if (ocm_code_start) { -+ printk(" ocm_code[0x%lx-0x%lx]", -+ ocm_code_start, ocm_code_end); -+ } -+ printk("\n stack[0x%lx-0x%lx]\n", stack, stack_end); -+ -+ handle = (unsigned long*)stack; -+ while (idx < TRAP_MAX_STACK_DEPTH) { -+ calls[idx] = stacktrace_iterate(&handle, -+ code_start, code_end, -+ ocm_code_start, ocm_code_end, -+ (unsigned long)stack, stack_end); -+ if (calls[idx] == 0) { -+ break; -+ } -+ idx++; -+ } -+ -+ /* -+ * Now print out the data. -+ */ -+ printk(KERN_NOTICE " CALL && CALLI on stack:"); -+ for (i = 0; i < idx; i++) { -+ printk("%s0x%x, ", (i & 0x3) == 0 ? "\n " : "", -+ calls[i]); -+ } -+ printk(idx == TRAP_MAX_STACK_DEPTH ? "...\n" : "\n"); -+ -+ /* -+ * If we are doing user stack we are done -+ */ -+ if (!kernel_stack) { -+ break; -+ } -+ -+ /* -+ * Does this kernel stack have a mm (i.e. is it user) -+ */ -+ if (!task->mm) { -+ printk("No mm for userspace stack.\n"); -+ break; -+ } -+ /* -+ * Get the user-mode stack (if any) -+ */ -+ stack = pt->an[7]; -+ printk(KERN_NOTICE "Userspace stack at 0x%lx frame type %d\n", -+ stack, (int)pt->frame_type); -+ if (!__user_mode(stack)) { -+ break; -+ } -+ } -+} -+ -+/* -+ * die_if_kernel() -+ * Determine if we are in kernel mode and if so print stuff out and die. -+ */ -+void die_if_kernel(char *str, struct pt_regs *regs, long trap_cause) -+{ -+ unsigned int s3value; -+ -+ if (user_mode(regs)) { -+ return; -+ } -+ -+ console_verbose(); -+ trap_print_information(str, regs); -+ -+ /* -+ * If the debugger is attached via the hardware mailbox protocol, -+ * go into an infinite loop and the debugger will figure things out. -+ */ -+ asm volatile ( -+ "move.4 %0, scratchpad3" -+ : "=r" (s3value) -+ ); -+ if (s3value) { -+ asm volatile("1: jmpt.t 1b"); -+ } -+ -+ /* -+ * Set the debug taint value. -+ */ -+ add_taint(TAINT_DIE); -+ do_exit(SIGSEGV); -+} -+ -+/* -+ * trap_handler() -+ * Handle traps. -+ * -+ * Traps are treated as interrupts and registered with the LDSR. When -+ * the LDSR takes the interrupt, it will determine if a trap has occurred -+ * and service the trap prior to servicing the interrupt. -+ * -+ * This function is directly called by the LDSR. -+ */ -+void trap_handler(int irq, struct pt_regs *regs) -+{ -+ int sig = SIGSEGV; -+ siginfo_t info; -+ unsigned int trap_cause = regs->trap_cause; -+ -+ BUG_ON(!irqs_disabled()); -+ -+ /* -+ * test if in kernel and die. -+ */ -+ die_if_kernel("Kernel Trap", regs, trap_cause); -+ -+ /* -+ * User process problem, setup a signal for this process -+ */ -+ if ((trap_cause & (1 << TRAP_CAUSE_DST_RANGE_ERR)) || -+ (trap_cause & (1 << TRAP_CAUSE_SRC1_RANGE_ERR)) || -+ (trap_cause & (1 << TRAP_CAUSE_I_RANGE_ERR))) { -+ sig = SIGSEGV; -+ info.si_code = SEGV_MAPERR; -+ } else if ((trap_cause & (1 << TRAP_CAUSE_DST_MISALIGNED)) || -+ (trap_cause & (1 << TRAP_CAUSE_SRC1_MISALIGNED))) { -+ sig = SIGBUS; -+ info.si_code = BUS_ADRALN; -+ } else if ((trap_cause & (1 << TRAP_CAUSE_DST_DECODE_ERR)) || -+ (trap_cause & (1 << TRAP_CAUSE_SRC1_DECODE_ERR))) { -+ sig = SIGILL; -+ info.si_code = ILL_ILLOPN; -+ } else if ((trap_cause & (1 << TRAP_CAUSE_ILLEGAL_INST))) { -+ /* -+ * Check for software break point and if found signal trap -+ * not illegal instruction. -+ */ -+ unsigned long instruction; -+ if (between(regs->pc, CONFIG_RAMBASE, -+ CONFIG_RAMBASE + CONFIG_RAMSIZE) && -+ (regs->pc & 3) == 0 && -+ get_user(instruction, (unsigned long *)regs->pc) == 0) { -+ -+ /* -+ * This used to be 0xaabbccdd but it turns out -+ * that is now valid in ubicom32v4 isa so we -+ * have switched to 0xfabbccdd -+ */ -+ if ((instruction == 0xfabbccdd) || -+ (instruction == 0xaabbccdd)) { -+ sig = SIGTRAP; -+ info.si_code = TRAP_BRKPT; -+ goto send_signal; -+ } -+ } -+ sig = SIGILL; -+ info.si_code = ILL_ILLOPC; -+ } else if ((trap_cause & (1 << TRAP_CAUSE_I_DECODE_ERR))) { -+ sig = SIGILL; -+ info.si_code = ILL_ILLOPC; -+ } else if ((trap_cause & (1 << TRAP_CAUSE_DCAPT))) { -+ sig = SIGTRAP; -+ info.si_code = TRAP_TRACE; -+ } -+ -+ /* -+ * Print a trap information block to the console, do not -+ * print this above the case because we don't want it -+ * printed for software break points. -+ */ -+ trap_print_information("User Trap", regs); -+ -+send_signal: -+ -+ force_sig_info(sig, &info, current); -+ -+ /* -+ * Interrupts are disabled, re-enable them now. -+ */ -+ if (!irqs_disabled()) { -+ printk(KERN_EMERG "interrupts enabled on exit, irq=%d, regs=%p", -+ irq, regs); -+ BUG(); -+ } -+} -+ -+/* -+ * trap_init_interrupt() -+ * We need a 2nd trap handling init that will occur after init_IRQ(). -+ */ -+void __init trap_init_interrupt(void) -+{ -+ int err; -+ unsigned char tirq; -+ struct devtree_node *dn = (struct devtree_node *)tn; -+ -+ /* -+ * Now setup the Software IRQ so that if a trap occurs the LDSR -+ * is started. The irq is there just to "force" the LDSR to run. -+ */ -+ if (!tn) { -+ printk(KERN_WARNING "trap_init_interrupt skipped.\n"); -+ return; -+ } -+ -+ err = devtree_irq(dn, NULL, &tirq); -+ if (err) { -+ printk(KERN_WARNING "error obtaining trap irq value: %d\n", -+ err); -+ return; -+ } -+ -+ if (tirq == DEVTREE_IRQ_NONE) { -+ printk(KERN_WARNING "trap irq not available: %d\n", tirq); -+ return; -+ } -+ -+ err = setup_irq(tirq, &trap_irq); -+ if (err) { -+ printk(KERN_WARNING "trap irq setup failed: %d\n", err); -+ return; -+ } -+ -+ /* -+ * Let ultra know which thread is handling the traps and -+ * what the interrupt to use is. -+ */ -+ tn->intthread = ldsr_get_threadid(); -+ -+ /* -+ * Tell the LDSR about our IRQ so that it will unsuspend -+ * if one occurs while waiting for the per thread lock. -+ */ -+ ldsr_set_trap_irq(tirq); -+} -+ -+/* -+ * trap_init() -+ * init trap handling -+ * -+ * Trap handling is done through the ldsr. Every time an interrupt -+ * occurs, the LDSR looks for threads that are listed in the TRAP -+ * register and forces a call to the trap handler. -+ */ -+void __init trap_init(void) -+{ -+ /* -+ * If we do not have a trap node in the device tree, we leave the fault -+ * handling to the underlying hardware. -+ */ -+ tn = (struct trapnode *)devtree_find_node("traps"); -+ if (!tn) { -+ printk(KERN_WARNING "traps are not handled by linux\n"); -+ return; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/uaccess.c -@@ -0,0 +1,109 @@ -+/* -+ * arch/ubicom32/include/asm/uaccess.c -+ * User space memory access functions for Ubicom32 architecture. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/string.h> -+#include <linux/module.h> -+ -+#include <asm/segment.h> -+#include <asm/uaccess.h> -+ -+extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; -+ -+/* -+ * __access_ok() -+ * Check that the address is in the current processes. -+ * -+ * NOTE: The kernel uses "pretend" user addresses that wind -+ * up calling access_ok() so this approach has only marginal -+ * value because you wind up with lots of false positives. -+ */ -+int __access_ok(unsigned long addr, unsigned long size) -+{ -+ // struct vm_area_struct *vma; -+ -+ /* -+ * Don't do anything if we are not a running system yet. -+ */ -+ if (system_state != SYSTEM_RUNNING) { -+ return 1; -+ } -+ -+ /* -+ * It appears that Linux will call this function even when we are not -+ * in the context of a user space application that has a VM address -+ * space. So we must check that current and mm are valid before -+ * performing the check. -+ */ -+ if ((!current) || (!current->mm)) { -+ return 1; -+ } -+ -+ /* -+ * We perform some basic checks on the address to ensure that it -+ * is at least within the range of DRAM. -+ */ -+ if ((addr < (int)&_etext) || (addr > memory_end)) { -+ printk(KERN_WARNING "pid=%d[%s]: range [%lx - %lx] not in memory area: [%lx - %lx]\n", -+ current->pid, current->comm, -+ addr, addr + size, -+ memory_start, memory_end); -+ return 0; -+ } -+ -+ /* -+ * For nommu Linux we can check this by looking at the allowed -+ * memory map for the process. -+ * -+ * TODO: Since the kernel passes addresses in it's own space as though -+ * they were user address, we can not validate the addresses this way. -+ */ -+#if 0 -+ if (!down_read_trylock(¤t->mm->mmap_sem)) { -+ return 1; -+ } -+ vma = find_vma(current->mm, addr); -+ if (!vma) { -+ up_read(¤t->mm->mmap_sem); -+ printk(KERN_WARNING "pid=%d[%s]: possible invalid acesss on range: [%lx - %lx]\n", -+ current->pid, current->comm, addr, addr + size); -+ return 1; -+ } -+ if ((addr + size) > vma->vm_end) { -+ up_read(¤t->mm->mmap_sem); -+ printk(KERN_WARNING "pid=%d[%s]: possible invalid length on range: [%lx - %lx]\n", -+ current->pid, current->comm, addr, addr + size); -+ return 1; -+ } -+ up_read(¤t->mm->mmap_sem); -+#endif -+ return 1; -+} -+ -+EXPORT_SYMBOL(__access_ok); ---- /dev/null -+++ b/arch/ubicom32/kernel/ubicom32_context_switch.S -@@ -0,0 +1,325 @@ -+/* -+ * arch/ubicom32/kernel/ubicom32_context_switch.S -+ * Implements context switch and return functions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/sys.h> -+#include <linux/linkage.h> -+#include <asm/asm-offsets.h> -+#include <asm/ubicom32-common.h> -+#include <asm/ip5000.h> -+#include <asm/range-protect.h> -+ -+/* -+ * restore_context() -+ * Restore the full context from sp (struct pt_reg *) -+ * -+ * Note: Recovered PC and CSR are saved on the stack and are to be popped off -+ * before returning. -+ */ -+.macro restore_context -+ move.4 a0, sp ; Set up a0 as base address for register recovery -+ move.4 sp, PT_SP(a0) ; Recover Stack pointer from save area -+ move.4 -4(sp)++, PT_PC(a0) ; Recover saved PC and save to stack -+ move.4 -4(sp)++, PT_CSR(a0) ; Recover saved csr and save to stack -+ move.4 d0, PT_D0(a0) -+ move.4 d1, PT_D1(a0) -+ move.4 d2, PT_D2(a0) -+ move.4 d3, PT_D3(a0) -+ move.4 d4, PT_D4(a0) -+ move.4 d5, PT_D5(a0) -+ move.4 d6, PT_D6(a0) -+ move.4 d7, PT_D7(a0) -+ move.4 d8, PT_D8(a0) -+ move.4 d9, PT_D9(a0) -+ move.4 d10, PT_D10(a0) -+ move.4 d11, PT_D11(a0) -+ move.4 d12, PT_D12(a0) -+ move.4 d13, PT_D13(a0) -+ move.4 d14, PT_D14(a0) -+ move.4 d15, PT_D15(a0) -+ move.4 a1, PT_A1(a0) -+ move.4 a2, PT_A2(a0) -+ move.4 a3, PT_A3(a0) -+ move.4 a4, PT_A4(a0) -+ move.4 a5, PT_A5(a0) -+ move.4 a6, PT_A6(a0) -+ move.4 acc0_hi, PT_ACC0HI(a0) -+ move.4 acc0_lo, PT_ACC0LO(a0) -+ move.4 mac_rc16, PT_MAC_RC16(a0) -+ move.4 acc1_hi, PT_ACC1HI(a0) -+ move.4 acc1_lo, PT_ACC1LO(a0) -+ move.4 source3, PT_SOURCE3(a0) -+ move.4 int_mask0, PT_INT_MASK0(a0) -+ move.4 int_mask1, PT_INT_MASK1(a0) -+ move.4 a0, PT_A0(a0) -+.endm -+ -+/* -+ * ldsr_thread_enable_interrupts() -+ * An assembly version of the enable interrupts function. -+ * -+ * The stack is fair game but all registers MUST be preserved. -+ * -+ */ -+.macro ldsr_thread_enable_interrupts -+ move.4 -4(sp)++, d3 ; Push d3 -+ move.4 -4(sp)++, a3 ; Push a3 -+ -+ /* -+ * Read the ROSR and obtain ~(1 << tid) -+ */ -+ lsr.4 d3, rosr, #0x2 ; Move the thread portion of ROSR into d3 -+ lsl.4 d3, #1, d3 ; perform a (1 << tid) -+ not.4 d3, d3 ; Negate the value of d3 == ~(1 << threadid) -+ -+ /* -+ * Get the value of the ldsr_soft_irq_mask -+ */ -+ moveai a3, #%hi(ldsr_soft_irq_mask) -+ move.4 a3, %lo(ldsr_soft_irq_mask)(a3) -+ -+ /* -+ * Now re-enable interrupts for this thread and then -+ * wakeup the LDSR. -+ */ -+ and.4 scratchpad1, scratchpad1, d3 -+ move.4 int_set0, a3 -+ -+ /* -+ * Restore the registers. -+ */ -+ move.4 a3, (sp)4++ -+ move.4 d3, (sp)4++ -+.endm -+ -+/* -+ * ret_from_interrupt_to_kernel() -+ * RFI function that is where do_IRQ() returns to if the thread was in kernel space. -+ */ -+ .section .text.ret_from_interrupt_to_kernel -+ .global ret_from_interrupt_to_kernel -+ret_from_interrupt_to_kernel: -+ atomic_lock_acquire ; Enter critical section -+ restore_context ; Restore the thread context -+ atomic_lock_release ; Leave critical section -+ ldsr_thread_enable_interrupts ; enable the threads interrupts -+ move.4 csr, (sp)4++ ; Restore csr from the stack -+ ret (sp)4++ -+ -+/* -+ * ret_from_interrupt_to_user() -+ * RFI function that is where do_IRQ() returns to if the thread was in user space. -+ * -+ * TODO: Do we really need the ciritical section handling in this code? -+ * -+ */ -+ .section .ret_from_interrupt_to_user.text -+ .global ret_from_interrupt_to_user -+ret_from_interrupt_to_user: -+ ldsr_thread_enable_interrupts ; enable the threads interrupts -+ movei d0, #(~(ASM_THREAD_SIZE-1)) -+ and.4 a3, sp, d0 ; a3 now has the thread info pointer -+ -+ /* -+ * Test if the scheduler needs to be called. -+ */ -+ btst TI_FLAGS(a3), #ASM_TIF_NEED_RESCHED -+ jmpeq.t 2f -+ moveai a5, #%hi(schedule) -+ calli a5, %lo(schedule)(a5) ; Call the scheduler. I will come back here. -+ -+ /* -+ * See if we have pending signals and call do_signal -+ * if needed. -+ */ -+2: atomic_lock_acquire ; Enter critical section -+ move.4 -4(sp)++, a1 ; Save A1 on the stack. We are going to use a1 it. -+ movei d0, #(~(ASM_THREAD_SIZE-1)) -+ and.4 a1, sp, d0 ; a1 now has the thread info pointer -+ btst TI_FLAGS(a1), #ASM_TIF_SIGPENDING ; Any signals needed? -+ jmpeq.t 1f -+ -+ -+ /* -+ * Now call do_signal() -+ */ -+ atomic_lock_release ; Leave critical section -+ move.4 d0, #0 ; oldset pointer is NULL -+ lea.1 d1, 4(sp) ; d1 is the regs pointer -+ moveai a5, #%hi(do_signal) -+ calli a5, %lo(do_signal)(a5) ; Call do_signal() -+ -+ /* -+ * Back from do_signal(), re-enter critical section. -+ */ -+ atomic_lock_acquire ; Enter critical section -+ -+1: move.4 a1, (sp)4++ ; pop A1 off the stack -+ -+ disable_kernel_ranges_for_current d15 ; disable kernel ranges -+ -+ restore_context ; restore the previous context -+ atomic_lock_release ; Leave critical section -+ move.4 csr, (sp)4++ ; Restore csr from the stack -+ ret (sp)4++ -+ -+/* -+ * restore_all_registers() -+ * -+ * restore_all_registers will be the alternate exit route for -+ * preempted processes that have called a signal handler -+ * and are returning back to user space. -+ */ -+ .global restore_all_registers -+restore_all_registers: -+ atomic_lock_acquire ; Enter critical section -+ disable_kernel_ranges_for_current d15 ; disable kernel ranges -+ atomic_lock_release ; Leave critical section -+ restore_context ; restore previous context -+ move.4 csr, (sp)4++ ; Restore csr from the stack -+ ret (sp)4++ -+ -+/* -+ * ret_from_fork() -+ * Called on the child's return from fork system call. -+ */ -+ .section .ret_from_fork.text -+ .global ret_from_fork -+ret_from_fork: -+ ;;; d0 contains the arg for schedule_tail -+ ;;; the others we don't care about as they are in PT_REGS (sp) -+ moveai a5, #%hi(schedule_tail) -+ calli a5, %lo(schedule_tail)(a5) -+ -+ atomic_lock_acquire ; Enter critical section -+ -+ move.4 a3, sp -+ move.4 d0, PT_D0(a3) ; Restore D0 -+ move.4 d1, PT_D1(a3) ; Restore D1 -+ move.4 d2, PT_D2(a3) ; Restore D2 -+ move.4 d3, PT_D3(a3) ; Restore D3 -+ move.4 d10, PT_D10(a3) ; Restore D10 -+ move.4 d11, PT_D11(a3) ; Restore D11 -+ move.4 d12, PT_D12(a3) ; Restore D12 -+ move.4 d13, PT_D13(a3) ; Restore D13 -+ move.4 a1, PT_A1(a3) ; Restore A1 -+ move.4 a2, PT_A2(a3) ; Restore A2 -+ move.4 a5, PT_A5(a3) ; Restore A5 -+ move.4 a6, PT_A6(a3) ; Restore A6 -+ move.4 sp, PT_SP(a3) ; Restore sp -+ move.4 a4, PT_PC(a3) ; Restore pc in register a4 -+ move.4 PT_FRAME_TYPE(a3), #0 ; Clear frame_type to indicate it is invalid. -+ -+ disable_kernel_ranges_for_current d15 -+ atomic_lock_release ; Leave critical section -+ calli a4, 0(a4) ; Return. -+ -+/* -+ * __switch_to() -+ * -+ * Call with: -+ * void *__switch_to(struct task_struct *prev, struct thread_struct *prev_switch, -+ * struct thread_struct *next_switch) -+ */ -+ .global __switch_to -+__switch_to: -+ -+ /* -+ * Set up register a3 to point to save area. -+ */ -+ movea a3, d1 ; a3 now holds prev_switch -+ move.4 (a3)4++, d10 -+ move.4 (a3)4++, d11 -+ move.4 (a3)4++, d12 -+ move.4 (a3)4++, d13 -+ move.4 (a3)4++, a1 -+ move.4 (a3)4++, a2 -+ move.4 (a3)4++, a5 -+ move.4 (a3)4++, a6 -+ move.4 (a3)4++, a7 -+ -+ /* -+ * Set up register a3 to point to restore area. -+ */ -+ movea a3, d2 ; a3 now holds next_switch -+ move.4 d10 , (a3)4++ -+ move.4 d11 , (a3)4++ -+ move.4 d12 , (a3)4++ -+ move.4 d13 , (a3)4++ -+ move.4 a1 , (a3)4++ -+ move.4 a2 , (a3)4++ -+ move.4 a5 , (a3)4++ -+ move.4 a6 , (a3)4++ -+ move.4 a7 , (a3)4++ -+ -+ /* -+ * Load the sw_ksp with the proper thread_info pointer. -+ */ -+ movei d15, #(~(ASM_THREAD_SIZE-1)) -+ and.4 a3, sp, d15 ; a3 now has the thread info pointer -+ moveai a4, #%hi(sw_ksp) -+ lea.1 a4, %lo(sw_ksp)(a4) ; a4 now has the base address of sw_ksp array -+ lsr.4 d15, ROSR, #2 ; Thread number + garbage -+ and.4 d15, #31, D15 ; Mask to get thread number into register D15 -+ move.4 (a4, d15), a3 ; Load the thread info pointer into the hw_ksp array.. -+ -+ /* -+ * We are done with context switch. Time to return.. -+ */ -+ ret a5 -+ -+ -+/* -+ * ubicom32_emulate_insn() -+ * Emulates the instruction. -+ * -+ * Call with: -+ * unsigned int ubicom32_emulate_insn(int source1, int source2, int source3, int *save_acc, int *save_csr); -+ */ -+ .global ubicom32_emulate_insn -+ .global trap_emulate -+ubicom32_emulate_insn: -+ movea a3, d3 ; a3 holds save_acc pointer -+ movea a4, d4 ; a4 hods save_csr pointer -+ move.4 source3, d2 -+ move.4 acc0_lo, (a3) -+ move.4 acc0_hi, 4(a3) -+ move.4 acc1_lo, 8(a3) -+ move.4 acc1_hi, 12(a3) -+ move.4 mac_rc16, 16(a3) -+ move.4 CSR, (a4) -+ setcsr_flush 0 -+ -+trap_emulate: -+ move.4 d0, d1 -+ setcsr_flush 0 -+ move.4 (a4), CSR ; Save csr -+ move.4 (a3), acc0_lo -+ move.4 4(a3), acc0_hi -+ move.4 8(a3), acc1_lo -+ move.4 12(a3), acc1_hi -+ move.4 16(a3), mac_rc16 -+ ret a5 ---- /dev/null -+++ b/arch/ubicom32/kernel/ubicom32_ksyms.c -@@ -0,0 +1,95 @@ -+/* -+ * arch/ubicom32/kernel/ubicom32_ksyms.c -+ * Ubicom32 architecture compiler support and misc symbols. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/linkage.h> -+#include <linux/sched.h> -+#include <linux/string.h> -+#include <linux/mm.h> -+#include <linux/user.h> -+#include <linux/elfcore.h> -+#include <linux/in6.h> -+#include <linux/interrupt.h> -+#include <linux/io.h> -+#include <linux/semaphore.h> -+ -+#include <asm/setup.h> -+#include <asm/machdep.h> -+#include <asm/pgalloc.h> -+#include <asm/irq.h> -+#include <asm/checksum.h> -+#include <asm/current.h> -+ -+/* platform dependent support */ -+ -+EXPORT_SYMBOL(__ioremap); -+EXPORT_SYMBOL(iounmap); -+ -+EXPORT_SYMBOL(ip_fast_csum); -+ -+ -+/* Networking helper routines. */ -+EXPORT_SYMBOL(csum_partial_copy_nocheck); -+ -+/* The following are special because they're not called -+ explicitly (the C compiler generates them). Fortunately, -+ their interface isn't gonna change any time soon now, so -+ it's OK to leave it out of version control. */ -+EXPORT_SYMBOL(memcpy); -+EXPORT_SYMBOL(memset); -+ -+#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4 -+/* -+ * libgcc functions - functions that are used internally by the -+ * compiler... (prototypes are not correct though, but that -+ * doesn't really matter since they're not versioned). -+ */ -+extern void __ashldi3(void); -+extern void __ashrdi3(void); -+extern void __divsi3(void); -+extern void __lshrdi3(void); -+extern void __modsi3(void); -+extern void __muldi3(void); -+extern void __udivsi3(void); -+extern void __umodsi3(void); -+ -+/* gcc lib functions */ -+EXPORT_SYMBOL(__ashldi3); -+EXPORT_SYMBOL(__ashrdi3); -+EXPORT_SYMBOL(__divsi3); -+EXPORT_SYMBOL(__lshrdi3); -+EXPORT_SYMBOL(__modsi3); -+EXPORT_SYMBOL(__muldi3); -+EXPORT_SYMBOL(__udivsi3); -+EXPORT_SYMBOL(__umodsi3); -+#else -+extern void __libgcc_udivmodsi(void); -+extern void __libgcc_divmodsi(void); -+ -+EXPORT_SYMBOL(__libgcc_udivmodsi); -+EXPORT_SYMBOL(__libgcc_divmodsi); -+#endif ---- /dev/null -+++ b/arch/ubicom32/kernel/ubicom32_syscall.S -@@ -0,0 +1,643 @@ -+/* -+ * arch/ubicom32/kernel/ubicom32_syscall.S -+ * <TODO: Replace with short file description> -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/sys.h> -+#include <linux/linkage.h> -+#include <linux/unistd.h> -+ -+#include <asm/ubicom32-common.h> -+#include <asm/thread_info.h> -+#include <asm/asm-offsets.h> -+#include <asm/range-protect.h> -+ -+/* -+ * system_call() -+ */ -+ .section .syscall_entry.text -+ .global system_call -+system_call: -+ /* -+ * Regular ABI rules for function calls apply for syscall. d8 holds -+ * the syscall number. We will use that to index into the syscall table. -+ * d0 - d5 hold the parameters. -+ * -+ * First we get the current thread_info and swap to the kernel stack. -+ * This is done by reading the current thread and looking up the ksp -+ * from the sw_ksp array and storing it in a3. -+ * -+ * Then we reserve space for the syscall context a struct pt_regs and -+ * save it using a4 initially and later as sp. -+ * Once sp is set to the kernel sp we can leave the critical section. -+ * -+ * For the user case the kernel stack will have the following layout. -+ * -+ * a3 ksp[0] +-----------------------+ -+ * | Thread info area | -+ * | struct thread_info | -+ * +-----------------------+ -+ * : : -+ * | Kernel Stack Area | -+ * | | -+ * a4 / sp >>> +-----------------------+ -+ * | Context save area | -+ * | struct pt_reg | -+ * ksp[THREAD_SIZE-8] +-----------------------+ -+ * | 8 Byte Buffer Zone | -+ * ksp[THREAD_SIZE] +-----------------------+ -+ -+ * -+ * For kernel syscalls the layout is as follows. -+ * -+ * a3 ksp[0] +-----------------------+ -+ * | Thread info area | -+ * | struct thread_info | -+ * +-----------------------+ -+ * : : -+ * | Kernel Stack Area | -+ * | | -+ * a4 / sp >>> +-----------------------+ -+ * | Context save area | -+ * | struct pt_reg | -+ * sp at syscall entry +-----------------------+ -+ * | Callers Kernel Stack | -+ * : : -+ * -+ * Once the context is saved we optionally call syscall_trace and setup -+ * the exit routine and jump to the syscall. -+ */ -+ -+ /* -+ * load the base address for sw_ksp into a3 -+ * Note.. we cannot access it just yet as protection is still on. -+ */ -+ moveai a3, #%hi(sw_ksp) -+ lea.1 a3, %lo(sw_ksp)(a3) -+ -+ /* -+ * Enter critical section . -+ * -+ * The 'critical' aspects here are the switching the to the ksp and -+ * changing the protection registers, these both use per thread -+ * information so we need to protect from a context switch. For now this -+ * is done using the global atomic lock. -+ */ -+ atomic_lock_acquire -+ -+ thread_get_self d15 ; Load current thread number -+#ifdef CONFIG_PROTECT_KERNEL -+ lsl.4 d9, #1, d15 ; Convert to thread bit -+ enable_kernel_ranges d9 -+#endif -+ /* -+ * We need to Determine if this is a kernel syscall or user syscall. -+ * Start by loading the pointer for the thread_info structure for the -+ * current process in to a3. -+ */ -+ move.4 a3, (a3, d15) ; a3 = sw_ksp[d15] -+ -+ /* -+ * Now if this is a kernel thread the same value can be a acheived by -+ * masking off the lower bits on the current stack pointer. -+ */ -+ movei d9, #(~(ASM_THREAD_SIZE-1)) ; load mask -+ and.4 d9, sp, d9 ; apply mask -+ -+ /* -+ * d9 now has the masked version of the sp. If this is identical to -+ * what is in a3 then don't switch to ksp as we are already in the -+ * kernel. -+ */ -+ sub.4 #0, a3, d9 -+ -+ /* -+ * if d9 and a3 are not equal. We are usespace and have to shift to -+ * ksp. -+ */ -+ jmpne.t 1f -+ -+ /* -+ * Kernel Syscall. -+ * -+ * The kernel has called this routine. We have to pdec space for pt_regs -+ * from sp. -+ */ -+ pdec a4, PT_SIZE(sp) ; a4 = ksp - PT_SIZE -+ jmpt.t 2f -+ -+ /* -+ * Userspace Syscall. -+ * -+ * Add THREAD_SIZE and subtract PT_SIZE to create the proper ksp -+ */ -+1: movei d15, #(ASM_THREAD_SIZE - 8 - PT_SIZE) -+ lea.1 a4, (a3, d15) ; a4 = ksp + d15 -+ -+ /* -+ * Replace user stack pointer with kernel stack pointer (a4) -+ * Load -1 into frame_type in save area to indicate this is system call -+ * frame. -+ */ -+2: move.4 PT_A7(a4), a7 ; Save old sp/A7 on kernel stack -+ move.4 PT_FRAME_TYPE(a4), #-1 ; Set the frame type. -+ move.4 sp, a4 ; Change to ksp. -+ /* -+ * We are now officially back in the kernel! -+ */ -+ -+ /* -+ * Now that we are on the ksp we can leave the critical section -+ */ -+ atomic_lock_release -+ -+ /* -+ * We need to save a0 because we need to be able to restore it in -+ * the event that we need to handle a signal. It's not generally -+ * a callee-saved register but is the GOT pointer. -+ */ -+ move.4 PT_A0(sp), a0 ; Save A0 on kernel stack -+ -+ /* -+ * We still need to save d10-d13, a1, a2, a5, a6 in the kernel frame -+ * for this process, we also save the system call params in the case of -+ * syscall restart. (note a7 was saved above) -+ */ -+ move.4 PT_A1(sp), a1 ; Save A1 on kernel stack -+ move.4 PT_A2(sp), a2 ; Save A2 on kernel stack -+ move.4 PT_A5(sp), a5 ; Save A5 on kernel stack -+ move.4 PT_A6(sp), a6 ; Save A6 on kernel stack -+ move.4 PT_PC(sp), a5 ; Save A5 at the PC location -+ move.4 PT_D10(sp), d10 ; Save D10 on kernel stack -+ move.4 PT_D11(sp), d11 ; Save D11 on kernel stack -+ move.4 PT_D12(sp), d12 ; Save D12 on kernel stack -+ move.4 PT_D13(sp), d13 ; Save D13 on kernel stack -+ -+ /* -+ * Now save the syscall parameters -+ */ -+ move.4 PT_D0(sp), d0 ; Save d0 on kernel stack -+ move.4 PT_ORIGINAL_D0(sp), d0 ; Save d0 on kernel stack -+ move.4 PT_D1(sp), d1 ; Save d1 on kernel stack -+ move.4 PT_D2(sp), d2 ; Save d2 on kernel stack -+ move.4 PT_D3(sp), d3 ; Save d3 on kernel stack -+ move.4 PT_D4(sp), d4 ; Save d4 on kernel stack -+ move.4 PT_D5(sp), d5 ; Save d5 on kernel stack -+ /* add this back if we ever have a syscall with 7 args */ -+ move.4 PT_D8(sp), d8 ; Save d8 on kernel stack -+ -+ /* -+ * Test if syscalls are being traced and if they are jump to syscall -+ * trace (it will comeback here) -+ */ -+ btst TI_FLAGS(a3), #ASM_TIF_SYSCALL_TRACE -+ jmpne.f .Lsystem_call__trace -+.Lsystem_call__trace_complete: -+ /* -+ * Check for a valid call number [ 0 <= syscall_number < NR_syscalls ] -+ */ -+ cmpi d8, #0 -+ jmplt.f 3f -+ cmpi d8, #NR_syscalls -+ jmplt.t 4f -+ -+ /* -+ * They have passed an invalid number. Call sys_ni_syscall staring by -+ * load a4 with the base address of sys_ni_syscall -+ */ -+3: moveai a4, #%hi(sys_ni_syscall) -+ lea.1 a4, %lo(sys_ni_syscall)(a4) -+ jmpt.t 5f ; Jump to regular processing -+ -+ /* -+ * Validated syscall, load the syscall table base address into a3 and -+ * read the syscall ptr out. -+ */ -+4: moveai a3, #%hi(sys_call_table) -+ lea.1 a3, %lo(sys_call_table)(a3) ; a3 = sys_call_table -+ move.4 a4, (a3, d8) ; a4 = sys_call_table[d8] -+ -+ /* -+ * Before calling the syscall, setup a5 so that syscall_exit is called -+ * on return from syscall -+ */ -+5: moveai a5, #%hi(syscall_exit) ; Setup return address -+ lea.1 a5, %lo(syscall_exit)(a5) ; from system call -+ -+ /* -+ * If the syscall is __NR_rt_rigreturn then we have to test d1 to -+ * figure out if we have to change change the return routine to restore -+ * all registers. -+ */ -+ cmpi d8, #__NR_rt_sigreturn -+ jmpeq.f 6f -+ -+ /* -+ * Launch system call (it will return through a5 - syscall_exit) -+ */ -+ calli a3, 0(a4) -+ -+ /* -+ * System call is rt_sigreturn. Test d1. If it is 1 we have to -+ * change the return address to restore_all_registers -+ */ -+6: cmpi d1, #1 -+ jmpne.t 7f -+ -+ moveai a5, #%hi(restore_all_registers) ; Setup return address -+ lea.1 a5, %lo(restore_all_registers)(a5) ; to restore_all_registers. -+ -+ /* -+ * Launch system call (it will return through a5) -+ */ -+7: calli a3, 0(a4) ; Launch system call -+ -+.Lsystem_call__trace: -+ /* -+ * Syscalls are being traced. -+ * Call syscall_trace, (return here) -+ */ -+ moveai a4, #%hi(syscall_trace) -+ calli a5, %lo(syscall_trace)(a4) -+ -+ /* -+ * Restore syscall state (it would have been discarded during the -+ * syscall trace) -+ */ -+ move.4 d0, PT_D0(sp) ; Restore d0 from kernel stack -+ move.4 d1, PT_D1(sp) ; Restore d1 from kernel stack -+ move.4 d2, PT_D2(sp) ; Restore d2 from kernel stack -+ move.4 d3, PT_D3(sp) ; Restore d3 from kernel stack -+ move.4 d4, PT_D4(sp) ; Restore d4 from kernel stack -+ move.4 d5, PT_D5(sp) ; Restore d5 from kernel stack -+ /* add this back if we ever have a syscall with 7 args */ -+ move.4 d8, PT_D8(sp) ; Restore d8 from kernel stack -+ -+ /* -+ * return to syscall -+ */ -+ jmpt.t .Lsystem_call__trace_complete -+ .size system_call, . - system_call -+ -+/* -+ * syscall_exit() -+ */ -+ .section .syscall_exit.text -+ .global syscall_exit -+syscall_exit: -+ /* -+ * d0 contains the return value. We should move that into the kernel -+ * stack d0 location. We will be transitioning from kernel to user -+ * mode. Test the flags and see if we have to call schedule. If we are -+ * going to truly exit then all that has to be done is that from the -+ * kernel stack we have to restore d0, a0, a1, a2, a5, a6 and sp (a7)bb -+ * and then return via a5. -+ */ -+ -+ /* -+ * Save d0 to pt_regs -+ */ -+ move.4 PT_D0(sp), d0 ; Save d0 into the kernel stack -+ -+ /* -+ * load the thread_info structure by masking off the THREAD_SIZE -+ * bits. -+ * -+ * Note: we used to push a1, but now we don't as we are going -+ * to eventually restore it to the userspace a1. -+ */ -+ movei d9, #(~(ASM_THREAD_SIZE-1)) -+ and.4 a1, sp, d9 -+ -+ /* -+ * Are any interesting bits set on TI flags, if there are jump -+ * aside to post_processing. -+ */ -+ move.4 d9, #(_TIF_SYSCALL_TRACE | _TIF_NEED_RESCHED | _TIF_SIGPENDING) -+ and.4 #0, TI_FLAGS(a1), d9 -+ jmpne.f .Lsyscall_exit__post_processing ; jump to handler -+.Lsyscall_exit__post_processing_complete: -+ -+ move.4 d0, PT_D0(sp) ; Restore D0 from kernel stack -+ move.4 d1, PT_D1(sp) ; Restore d1 from kernel stack -+ move.4 d2, PT_D2(sp) ; Restore d2 from kernel stack -+ move.4 d3, PT_D3(sp) ; Restore d3 from kernel stack -+ move.4 d4, PT_D4(sp) ; Restore d4 from kernel stack -+ move.4 d5, PT_D5(sp) ; Restore d5 from kernel stack -+ move.4 d8, PT_D8(sp) ; Restore d8 from kernel stack -+ move.4 d10, PT_D10(sp) ; Restore d10 from kernel stack -+ move.4 d11, PT_D11(sp) ; Restore d11 from kernel stack -+ move.4 d12, PT_D12(sp) ; Restore d12 from kernel stack -+ move.4 d13, PT_D13(sp) ; Restore d13 from kernel stack -+ move.4 a1, PT_A1(sp) ; Restore A1 from kernel stack -+ move.4 a2, PT_A2(sp) ; Restore A2 from kernel stack -+ move.4 a5, PT_A5(sp) ; Restore A5 from kernel stack -+ move.4 a6, PT_A6(sp) ; Restore A6 from kernel stack -+ move.4 a0, PT_A0(sp) ; Restore A6 from kernel stack -+ -+ /* -+ * this is only for debug, and could be removed for production builds -+ */ -+ move.4 PT_FRAME_TYPE(sp), #0 ; invalidate frame_type -+ -+#ifdef CONFIG_PROTECT_KERNEL -+ /* -+ * Enter critical section -+ */ -+ atomic_lock_acquire -+ disable_kernel_ranges_for_current d15 -+#endif -+ /* -+ * Lastly restore userspace stack ptr -+ * -+ * Note: that when protection is on we need to hold the lock around the -+ * stack swap as well because otherwise the protection could get -+ * inadvertently disabled again at the end of a context switch. -+ */ -+ move.4 a7, PT_A7(sp) ; Restore A7 from kernel stack -+ -+ /* -+ * We are now officially back in userspace! -+ */ -+ -+#ifdef CONFIG_PROTECT_KERNEL -+ /* -+ * Leave critical section and return to user space. -+ */ -+ atomic_lock_release -+#endif -+ calli a5, 0(a5) ; Back to userspace code. -+ -+ bkpt #-1 ; we will never get here -+ -+ /* -+ * Post syscall processing. (unlikely part of syscall_exit) -+ * -+ * Are we tracing syscalls. If TIF_SYSCALL_TRACE is set, call -+ * syscall_trace routine and return here. -+ */ -+.Lsyscall_exit__post_processing: -+ btst TI_FLAGS(a1), #ASM_TIF_SYSCALL_TRACE -+ jmpeq.t 1f -+ moveai a5, #%hi(syscall_trace) -+ calli a5, %lo(syscall_trace)(a5) -+ -+ /* -+ * Do we need to resched ie call schedule. If TIF_NEED_RESCHED is set, -+ * call the scheduler, it will come back here. -+ */ -+1: btst TI_FLAGS(a1), #ASM_TIF_NEED_RESCHED -+ jmpeq.t 2f -+ moveai a5, #%hi(schedule) -+ calli a5, %lo(schedule)(a5) -+ -+ /* -+ * Do we need to post a signal, if TIF_SIGPENDING is set call the -+ * do_signal. -+ */ -+2: btst TI_FLAGS(a1), #ASM_TIF_SIGPENDING -+ jmpeq.t .Lsyscall_exit__post_processing_complete -+ -+ /* -+ * setup the do signal call -+ */ -+ move.4 d0, #0 ; oldset pointer is NULL -+ lea.1 d1, (sp) ; d1 is the regs pointer. -+ moveai a5, #%hi(do_signal) ; Have to call do_signal -+ calli a5, %lo(do_signal)(a5) -+ -+ jmpt.t .Lsyscall_exit__post_processing_complete -+ -+ .size syscall_exit, . - syscall_exit -+ -+/* -+ * kernel_execve() -+ * kernel_execv is called when we the kernel is starting a -+ * userspace application. -+ */ -+ .section .kernel_unprotected -+ .global kernel_execve -+kernel_execve: -+ move.4 -4(sp)++, a5 ; Save return address -+ /* -+ * Call execve -+ */ -+ movei d8, #__NR_execve ; call execve -+ moveai a3, #%hi(system_call) -+ calli a5, %lo(system_call)(a3) -+ move.4 a5, (sp)4++ -+ -+ /* -+ * protection was enabled again at syscall exit, but we want -+ * to return to kernel so we enable it again. -+ */ -+#ifdef CONFIG_PROTECT_KERNEL -+ /* -+ * We are entering the kernel so we need to disable the protection. -+ * Enter critical section, disable ranges and leave critical section. -+ */ -+ atomic_lock_acquire ; Enter critical section -+ enable_kernel_ranges_for_current d15 -+ atomic_lock_release ; Leave critical section -+#endif -+ ret a5 ; jump back to the kernel -+ -+ .size kernel_execve, . - kernel_execve -+ -+/* -+ * signal_trampoline() -+ * -+ * Deals with transitioning from to userspace signal handlers and returning -+ * to userspace, only called from the kernel. -+ * -+ */ -+ .section .kernel_unprotected -+ .global signal_trampoline -+signal_trampoline: -+ /* -+ * signal_trampoline is called when we are jumping from the kernel to -+ * the userspace signal handler. -+ * -+ * The following registers are relevant. (set setup_rt_frame) -+ * sp is the user space stack not the kernel stack -+ * d0 = signal number -+ * d1 = siginfo_t * -+ * d2 = ucontext * -+ * d3 = the user space signal handler -+ * a0 is set to the GOT if userspace application is FDPIC, otherwise 0 -+ * a3 is set to the FD for the signal if userspace application is FDPIC -+ */ -+#ifdef CONFIG_PROTECT_KERNEL -+ /* -+ * We are leaving the kernel so we need to enable the protection. -+ * Enter critical section, disable ranges and leave critical section. -+ */ -+ atomic_lock_acquire ; Enter critical section -+ disable_kernel_ranges_for_current d15 ; disable kernel ranges -+ atomic_lock_release ; Leave critical section -+#endif -+ /* -+ * The signal handler pointer is in register d3 so tranfer it to a4 and -+ * call it -+ */ -+ movea a4, d3 ; signal handler -+ calli a5, 0(a4) -+ -+ /* -+ * Return to userspace through rt_syscall which is stored on top of the -+ * stack d1 contains ret_via_interrupt status. -+ */ -+ move.4 d8, (sp) ; d8 (syscall #) = rt_syscall -+ move.4 d1, 4(sp) ; d1 = ret_via_interrupt -+ moveai a3, #%hi(system_call) ; call system_call -+ calli a5, %lo(system_call)(a3) -+ -+ bkpt -1 ; will never get here. -+ .size signal_trampoline, . - signal_trampoline -+ -+/* -+ * kernel_thread_helper() -+ * -+ * Entry point for kernel threads (only referenced by kernel_thread()). -+ * -+ * On execution d0 will be 0, d1 will be the argument to be passed to the -+ * kernel function. -+ * d2 contains the kernel function that needs to get called. -+ * d3 will contain address to do_exit which needs to get moved into a5. -+ * -+ * On return from fork the child thread d0 will be 0. We call this dummy -+ * function which in turn loads the argument -+ */ -+ .section .kernel_unprotected -+ .global kernel_thread_helper -+kernel_thread_helper: -+ /* -+ * Create a kernel thread. This is called from ret_from_vfork (a -+ * userspace return routine) so we need to put it in an unprotected -+ * section and re-enable protection before calling the vector in d2. -+ */ -+ -+#ifdef CONFIG_PROTECT_KERNEL -+ /* -+ * We are entering the kernel so we need to disable the protection. -+ * Enter critical section, disable ranges and leave critical section. -+ */ -+ atomic_lock_acquire ; Enter critical section -+ enable_kernel_ranges_for_current d0 -+ atomic_lock_release ; Leave critical section -+#endif -+ /* -+ * Move argument for kernel function into d0, and set a5 return address -+ * (a5) to do_exit and return through a2 -+ */ -+ move.4 d0, d1 ; d0 = arg -+ move.4 a5, d3 ; a5 = do_exit -+ ret d2 ; call function ptr in d2 -+ -+ .size kernel_thread_helper, . - kernel_thread_helper -+ -+/* -+ * execve_intercept() -+ */ -+ .section .text -+ .global execve_intercept -+execve_intercept: -+ move.4 d3, sp ; Save retrun address -+ moveai a3, #%hi(sys_execve) -+ calli a3, %lo(sys_execve)(a3) -+ -+ .size execve_intercept, . - execve_intercept -+ -+/* -+ * vfork_intercept() -+ */ -+ .section .text -+ .global vfork_intercept -+vfork_intercept: -+ move.4 d0, sp ; Save pt_regs address -+ moveai a3, #%hi(sys_vfork) -+ calli a3, %lo(sys_vfork)(a3) -+ -+ .size vfork_intercept, . - vfork_intercept -+ -+/* -+ * clone_intercept() -+ */ -+ .section .text -+ .global clone_intercept -+clone_intercept: -+ move.4 d2, sp ; Save pt_regs address -+ moveai a3, #%hi(sys_clone) -+ calli a3, %lo(sys_clone)(a3) -+ -+ .size clone_intercept, . - clone_intercept -+ -+/* -+ * sys_sigsuspend() -+ */ -+ .section .text -+ .global sys_sigsuspend -+sys_sigsuspend: -+ move.4 d0, sp ; Pass pointer to pt_regs in d0 -+ moveai a3, #%hi(do_sigsuspend) -+ calli a3, %lo(do_sigsuspend)(a3) -+ -+ .size sys_sigsuspend, . - sys_sigsuspend -+ -+/* -+ * sys_rt_sigsuspend() -+ */ -+ .section .text -+ .global sys_rt_sigsuspend -+sys_rt_sigsuspend: -+ move.4 d0, sp ; Pass pointer to pt_regs in d0 -+ moveai a3, #%hi(do_rt_sigsuspend) -+ calli a3, %lo(do_rt_sigsuspend)(a3) -+ -+ .size sys_rt_sigsuspend, . - sys_rt_sigsuspend -+ -+/* -+ * sys_rt_sigreturn() -+ */ -+ .section .text -+ .global sys_rt_sigreturn -+sys_rt_sigreturn: -+ move.4 d0, sp ; Pass pointer to pt_regs in d0 -+ moveai a3, #%hi(do_rt_sigreturn) -+ calli a3, %lo(do_rt_sigreturn)(a3) -+ -+ .size sys_rt_sigreturn, . - sys_rt_sigreturn -+ -+/* -+ * sys_sigaltstack() -+ */ -+ .section .text -+ .global sys_sigaltstack -+sys_sigaltstack: -+ move.4 d0, sp ; Pass pointer to pt_regs in d0 -+ moveai a3, #%hi(do_sys_sigaltstack) -+ calli a3, %lo(do_sys_sigaltstack)(a3) -+ -+ .size sys_sigaltstack, . - sys_sigaltstack ---- /dev/null -+++ b/arch/ubicom32/kernel/unaligned_trap.c -@@ -0,0 +1,698 @@ -+/* -+ * arch/ubicom32/kernel/unaligned_trap.c -+ * Handle unaligned traps in both user or kernel space. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/types.h> -+#include <linux/kernel.h> -+#include <asm/cacheflush.h> -+#include <asm/traps.h> -+ -+#define FALSE 0 -+#define TRUE 1 -+ -+/* no possible trap */ -+#define UNUSED 0 -+/* possible source operand trap */ -+#define SRC 1 -+#define SRC_2 2 -+/* possible destination operand trap */ -+#define DEST 3 -+#define DEST_2 4 -+/* can be either source or destination or both */ -+#define TWO_OP 5 -+#define TWO_OP_2 6 -+ -+/* TODO: What is the real value here, put something in to make it compile for -+ * now */ -+#define MOVE_2 0x0d -+#define LSL_2 0x11 -+#define LSR_2 0x13 -+#define MOVEI 0x19 -+#define CMPI 0x18 -+ -+static int op_format[32] = -+{ -+ TWO_OP, /* 0x00 */ -+ UNUSED, -+ SRC, -+ UNUSED, -+ TWO_OP, /* 0x04 */ -+ TWO_OP, -+ SRC, -+ UNUSED, -+ TWO_OP_2, /* 0x08 */ -+ TWO_OP, -+ TWO_OP_2, -+ TWO_OP, -+ TWO_OP_2, /* 0x0C */ -+ TWO_OP, -+ TWO_OP_2, -+ TWO_OP, -+ TWO_OP, /* 0x10 */ -+ TWO_OP_2, -+ TWO_OP, -+ TWO_OP, -+ UNUSED, /* 0x14 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ SRC_2, /* 0x18 */ -+ DEST_2, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x1C */ -+ UNUSED, -+ UNUSED, /* unaligned CALLI will not be fixed. */ -+ UNUSED -+}; -+ -+static int op_0_format[32] = -+{ -+ UNUSED, /* 0x00 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x04 - ret don't fix - bad ret is always wrong */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x08 */ -+ UNUSED, -+ TWO_OP, -+ TWO_OP_2, -+ TWO_OP, /* 0x0c */ -+ TWO_OP_2, -+ TWO_OP, -+ UNUSED, /* .1 can't trap */ -+ UNUSED, /* 0x10 */ -+ UNUSED, -+ SRC, -+ UNUSED, -+ UNUSED, /* 0x14 */ -+ TWO_OP_2, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x18 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ DEST, /* 0x1c */ -+ DEST, -+ DEST, -+ DEST, /* all lea have 32-bit destination */ -+}; -+ -+static int op_2_format[32] = -+{ -+ UNUSED, /* 0x00 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x04 */ -+ UNUSED, -+ SRC, -+ UNUSED, -+ UNUSED, /* 0x08 crcgen is .1 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x0c */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ SRC, /* 0x10 */ -+ SRC_2, -+ SRC, -+ SRC_2, -+ SRC, /* 0x14 */ -+ SRC_2, -+ SRC, -+ UNUSED, -+ UNUSED, /* 0x18 */ -+ UNUSED, -+ SRC, -+ UNUSED, -+ SRC, /* 0x1c */ -+ UNUSED, -+ SRC_2, -+ UNUSED, -+}; -+ -+static int op_6_format[32] = -+{ -+ SRC_2, /* 0x00 */ -+ SRC_2, -+ SRC_2, -+ SRC_2, -+ SRC_2, /* 0x04 */ -+ SRC_2, -+ UNUSED, -+ SRC_2, -+ SRC, /* 0x08 MULS.4 */ -+ SRC_2, -+ SRC, -+ UNUSED, -+ UNUSED, /* 0x0c */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ SRC, /* 0x10 */ -+ SRC_2, -+ SRC, -+ SRC_2, -+ UNUSED, /* 0x14 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x18 */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+ UNUSED, /* 0x1c */ -+ UNUSED, -+ UNUSED, -+ UNUSED, -+}; -+ -+/* -+ * unaligned_get_address() -+ * get an address using save_an and save_dn registers, and updates save_an -+ * with side effects -+ */ -+unsigned char *unaligned_get_address(int thread, int specifier, int four_byte, -+ unsigned int save_an[], -+ unsigned int save_dn[], int *write_back_an) -+{ -+ unsigned char *address; -+ -+ int areg = (specifier >> 5) & 7; -+ if ((specifier >> 8) == 2) { -+ int offset = specifier & 0xf; -+ offset = ((offset << 28) >> 28); -+ if (likely(four_byte)) { -+ offset <<= 2; -+ } else { -+ offset <<= 1; -+ } -+ if (specifier & 0x10) { -+ address = (unsigned char *)(save_an[areg] + offset); -+ } else { -+ address = (unsigned char *)save_an[areg]; -+ } -+ save_an[areg] = save_an[areg] + offset; -+ -+ /* -+ * Let caller know An registers have been modified. -+ */ -+ *write_back_an = 1; -+ } else if ((specifier >> 8) == 3) { -+ int dreg = specifier & 0xf; -+ if (likely(four_byte)) { -+ address = (unsigned char *)(save_an[areg] + -+ (save_dn[dreg] << 2)); -+ } else { -+ address = (unsigned char *)(save_an[areg] + -+ (save_dn[dreg] << 1)); -+ } -+ } else { -+ int offset = ((specifier >> 3) & 0x60) | (specifier & 0x1f); -+ if (likely(four_byte)) { -+ address = (unsigned char *)(save_an[areg] + -+ (offset << 2)); -+ } else { -+ address = (unsigned char *)(save_an[areg] + -+ (offset << 1)); -+ } -+ } -+ -+ return address; -+} -+ -+static int save_dn[16]; -+static int save_an[8]; -+static int save_acc[5]; -+ -+/* -+ * unaligned_emulate() -+ * emulate the instruction at thread's pc that has taken an unaligned data -+ * trap. -+ * -+ * source or destination or both might be unaligned -+ * the instruction must have a memory source or destination or both -+ * the emulated instruction is copied and executed in this thread -+ * -+ * TODO: Protection is handled outside of this function -+ * TODO: handling simultaneous unaligned and memory protection traps -+ * -+ * Get thread state -+ * the PC and instruction (and local copy, emulate_inst), and An -+ * and Dn registers -+ * All implicit soruce state (source3, CSR, accumulators) -+ -+ * if the instruction has a memory source -+ * Use the instruction, An and Dn registers to form src_address -+ * get unaligned source data from src_address (usually sign -+ * extended) -+ * (2 bytes, with or without sign extension, or 4 bytes) -+ * modify emulate_inst to use d0 as source -+ * else -+ * get the soure operand from one of thread's registers -+ * if instruction has a memory destination -+ * Use the instruction, An and Dn registers to form dest_address -+ * modify emulate_inst to use d0 as destination -+ * if there was a memory source -+ * put the source data in thread's d0 -+ * get the source-2 Dn operand and source 3 operand from thread -+ * execute modified inst -+ * (save it, flush caches, set up local values for implicit -+ * sources, execute, save explicit and implicit results) -+ * if inst has destination address -+ * copy result to dest_address, possibly unaligned, 1, 2, or 4 -+ * bytes -+ * restore thread's implicit results (modified address registers, CSR, -+ * accumulators) add 4 to thread's pc -+ */ -+void unaligned_emulate(unsigned int thread) -+{ -+ unsigned int pc; -+ unsigned int inst; -+ unsigned int op; -+ unsigned int subop; -+ int format; -+ unsigned int emulate_inst; -+ int four_byte; -+ int src_operand, dest_operand; -+ int save_csr; -+ int source3; -+ unsigned int source1; -+ unsigned int source_data; -+ unsigned char *dest_address = NULL; -+ int source2 = 0; -+ unsigned int result; -+ unsigned int write_back_an = 0; -+ unsigned int chip_id_copy; -+ -+ extern unsigned int trap_emulate; -+ extern unsigned int ubicom32_emulate_insn(int source1, int source2, -+ int source3, int *save_acc, -+ int *save_csr); -+ -+ /* -+ * get the chip_id -+ */ -+ asm volatile ( -+ " move.4 %0, chip_id \n\t" /* get chip_id. */ -+ : "=r"(chip_id_copy) -+ : -+ ); -+ -+ /* -+ * get the pc -+ */ -+ asm volatile ( -+ " move.4 CSR, %1 \n\t" /* set source thread in -+ * CSR */ -+ " setcsr_flush 0 \n\t" -+ " move.4 %0, pc \n\t" -+ " move.4 CSR, #0 \n\t" /* restore CSR */ -+ " setcsr_flush 0 \n\t" -+ : "=a"(pc) -+ : "d" ((1 << 8) | (thread << 9)) -+ : "cc" -+ ); -+ -+ inst = *((unsigned int *)pc); -+ op = inst >> 27; -+ if (unlikely(op == 2 || op == 6)) { -+ subop = (inst >> 21) & 0x1f; -+ } else { -+ subop = (inst >> 11) & 0x1f; -+ } -+ format = op_format[op]; -+ emulate_inst = inst; -+ -+ if (op == 0) { -+ format = op_0_format[subop]; -+ } else if (op == 2) { -+ format = op_2_format[subop]; -+ } else if (op == 6) { -+ format = op_6_format[subop]; -+ } -+ -+ if (unlikely(format == UNUSED)) { -+ /* -+ * We are not going to emulate this. Bump PC by 4 and move on. -+ */ -+ asm volatile ( -+ " move.4 CSR, %0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 pc, %1 \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : -+ : "d"((1 << 14) | (thread << 15)), "d"(pc + 4) -+ : "cc" -+ ); -+ return; -+ } -+ -+ four_byte = (format == TWO_OP || format == DEST || format == SRC); -+ -+ /* -+ * source or destination memory operand needs emulation -+ */ -+ src_operand = (format == SRC || -+ format == SRC_2 || -+ format == TWO_OP || -+ format == TWO_OP_2) && -+ ((inst >> 8) & 7) > 1; -+ -+ dest_operand = (format == DEST || -+ format == DEST_2 || -+ format == TWO_OP || -+ format == TWO_OP_2) && -+ ((inst >> 24) & 7) > 1; -+ -+ /* -+ * get thread's implicit sources (not covered by source context select). -+ * data and address registers and CSR (for flag bits) and src3 and -+ * accumulators -+ */ -+ asm volatile ( -+ " move.4 CSR, %2 \n\t" /* set source thread in -+ * CSR */ -+ " setcsr_flush 0 \n\t" -+ " move.4 (%3), d0 \n\t" /* get dn registers */ -+ " move.4 4(%3), d1 \n\t" -+ " move.4 8(%3), d2 \n\t" -+ " move.4 12(%3), d3 \n\t" -+ " move.4 16(%3), d4 \n\t" -+ " move.4 20(%3), d5 \n\t" -+ " move.4 24(%3), d6 \n\t" -+ " move.4 28(%3), d7 \n\t" -+ " move.4 32(%3), d8 \n\t" -+ " move.4 36(%3), d9 \n\t" -+ " move.4 40(%3), d10 \n\t" -+ " move.4 44(%3), d11 \n\t" -+ " move.4 48(%3), d12 \n\t" -+ " move.4 52(%3), d13 \n\t" -+ " move.4 56(%3), d14 \n\t" -+ " move.4 60(%3), d15 \n\t" -+ " move.4 (%4), a0 \n\t" /* get an registers */ -+ " move.4 4(%4), a1 \n\t" -+ " move.4 8(%4), a2 \n\t" -+ " move.4 12(%4), a3 \n\t" -+ " move.4 16(%4), a4 \n\t" -+ " move.4 20(%4), a5 \n\t" -+ " move.4 24(%4), a6 \n\t" -+ " move.4 28(%4), a7 \n\t" -+ " move.4 %0, CSR \n\t" /* get csr and source3 -+ * implicit operands */ -+ " move.4 %1, source3 \n\t" -+ " move.4 (%5), acc0_lo \n\t" /* get accumulators */ -+ " move.4 4(%5), acc0_hi \n\t" -+ " move.4 8(%5), acc1_lo \n\t" -+ " move.4 12(%5), acc1_hi \n\t" -+ " move.4 16(%5), mac_rc16 \n\t" -+ " move.4 CSR, #0 \n\t" /* restore CSR */ -+ " setcsr_flush 0 \n\t" -+ : "=m"(save_csr), "=m"(source3) -+ : "d"((1 << 8) | (thread << 9)), -+ "a"(save_dn), "a"(save_an), "a"(save_acc) -+ : "cc" -+ ); -+ -+ /* -+ * turn off thread select bits if they were on -+ */ -+ BUG_ON((save_csr & 0x04100) != 0); -+ if (unlikely(save_csr & 0x04100)) { -+ /* -+ * Things are in funny state as thread select bits are on in -+ * csr. PANIC. -+ */ -+ panic("In unaligned trap handler. Trap thread CSR has thread " -+ "select bits on.\n"); -+ } -+ -+ save_csr = save_csr & 0x1000ff; -+ -+ /* -+ * get the source1 operand -+ */ -+ source1 = 0; -+ if (src_operand) { -+ unsigned char *src_address; -+ -+ /* -+ * source1 comes from memory -+ */ -+ BUG_ON(!(format == TWO_OP || format == TWO_OP_2 || -+ format == SRC || format == SRC_2)); -+ src_address = unaligned_get_address(thread, inst & 0x7ff, -+ four_byte, save_an, -+ save_dn, &write_back_an); -+ -+ /* -+ * get data (possibly unaligned) -+ */ -+ if (likely(four_byte)) { -+ source_data = (*src_address << 24) | -+ (*(src_address + 1) << 16) | -+ (*(src_address + 2) << 8) | -+ *(src_address + 3); -+ source1 = source_data; -+ } else { -+ source1 = *src_address << 8 | -+ *(src_address + 1); -+ -+ /* -+ * Source is not extended if the instrution is MOVE.2 or -+ * if the cpu CHIP_ID >= 0x30000 and the instruction is -+ * either LSL.2 or LSR.2. All other cases have to be -+ * sign extended. -+ */ -+ if ((!(op == 2 && subop == MOVE_2)) && -+ (!((chip_id_copy >= 0x30000) && -+ (subop == LSL_2 || subop == LSR_2)))) { -+ /* -+ * Have to sign extend the .2 entry. -+ */ -+ source1 = ((unsigned int) -+ ((signed int) -+ ((signed short) source1))); -+ } -+ } -+ } else if (likely(op != MOVEI)) { -+ /* -+ * source1 comes from a register, using move.4 d0, src1 -+ * unaligned_emulate_get_source is pointer to code to insert remulated instruction -+ */ -+ extern unsigned int unaligned_emulate_get_src; -+ *((int *)&unaligned_emulate_get_src) &= ~(0x7ff); -+ *((int *)&unaligned_emulate_get_src) |= (inst & 0x7ff); -+ flush_dcache_range((unsigned long)(&unaligned_emulate_get_src), -+ (unsigned long)(&unaligned_emulate_get_src) + 4); -+ -+ asm volatile ( -+ /* source1 uses thread's registers */ -+ " move.4 CSR, %1 \n\t" -+ " setcsr_flush 0 \n\t" -+ "unaligned_emulate_get_src: \n\t" -+ " move.4 %0, #0 \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : "=d" (source1) -+ : "d" ((1 << 8) | (thread << 9)) -+ : "cc" -+ ); -+ } -+ -+ /* -+ * get the destination address -+ */ -+ if (dest_operand) { -+ BUG_ON(!(format == TWO_OP || format == TWO_OP_2 || -+ format == DEST || format == DEST_2)); -+ dest_address = unaligned_get_address(thread, -+ ((inst >> 16) & 0x7ff), -+ four_byte, save_an, -+ save_dn, &write_back_an); -+ } -+ -+ if (write_back_an) { -+ /* -+ * restore any modified An registers -+ */ -+ asm volatile ( -+ " move.4 CSR, %0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 a0, (%1) \n\t" -+ " move.4 a1, 4(%1) \n\t" -+ " move.4 a2, 8(%1) \n\t" -+ " move.4 a3, 12(%1) \n\t" -+ " move.4 a4, 16(%1) \n\t" -+ " move.4 a5, 20(%1) \n\t" -+ " move.4 a6, 24(%1) \n\t" -+ " move.4 a7, 28(%1) \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : -+ : "d" ((1 << 14) | (thread << 15)), "a" (save_an) -+ : "cc" -+ ); -+ } -+ -+ /* -+ * get source 2 register if needed, and modify inst to use d1 for -+ * source-2 source-2 will come from this thread, not the trapping thread -+ */ -+ source2 = 0; -+ if ((op >= 8 && op <= 0x17) || -+ ((op == 2 || op == 6) && (inst & 0x4000000))) { -+ int src_dn = (inst >> 11) & 0xf; -+ source2 = save_dn[src_dn]; -+ /* -+ * force the emulated instruction to use d1 for source2 operand -+ */ -+ emulate_inst = (emulate_inst & 0xffff07ff) | 0x800; -+ } -+ -+ if (likely(op != MOVEI)) { -+ /* -+ * change emulated instruction source1 to d0 -+ */ -+ emulate_inst &= ~0x7ff; -+ emulate_inst |= 1 << 8; -+ } -+ -+ if (unlikely(op == 6 || op == 2)) { -+ /* -+ * Set destination to d0 -+ */ -+ emulate_inst &= ~(0xf << 16); -+ } else if (likely(op != CMPI)) { -+ /* -+ * Set general destination field to d0. -+ */ -+ emulate_inst &= ~(0x7ff << 16); -+ emulate_inst |= 1 << 24; -+ } -+ -+ /* -+ * execute emulated instruction d0, to d0, no memory access -+ * source2 if needed will be in d1 -+ * source3, CSR, and accumulators are set up before execution -+ */ -+ *((unsigned int *)&trap_emulate) = emulate_inst; -+ flush_dcache_range((unsigned long)(&trap_emulate), -+ (unsigned long)(&trap_emulate) + 4); -+ -+ result = ubicom32_emulate_insn(source1, source2, source3, -+ save_acc, &save_csr); -+ -+ /* -+ * set the result value -+ */ -+ if (dest_operand) { -+ /* -+ * copy result to memory -+ */ -+ if (four_byte) { -+ *dest_address++ = -+ (unsigned char)((result >> 24) & 0xff); -+ *dest_address++ = -+ (unsigned char)((result >> 16) & 0xff); -+ } -+ *dest_address++ = (unsigned char)((result >> 8) & 0xff); -+ *dest_address = (unsigned char)(result & 0xff); -+ } else if (likely(op != CMPI)) { -+ /* -+ * copy result to a register, using move.4 dest, result -+ */ -+ extern unsigned int unaligned_trap_set_result; -+ *((unsigned int *)&unaligned_trap_set_result) &= ~0x7ff0000; -+ -+ if (op == 2 || op == 6) { -+ *((unsigned int *)&unaligned_trap_set_result) |= -+ ((inst & 0x000f0000) | 0x01000000); -+ } else { -+ *((unsigned int *)&unaligned_trap_set_result) |= -+ (inst & 0x7ff0000); -+ } -+ flush_dcache_range((unsigned long)&unaligned_trap_set_result, -+ ((unsigned long)(&unaligned_trap_set_result) + 4)); -+ -+ asm volatile ( -+ /* result uses thread's registers */ -+ " move.4 CSR, %1 \n\t" -+ " setcsr_flush 0 \n\t" -+ "unaligned_trap_set_result: \n\t" -+ " move.4 #0, %0 \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : -+ : "d"(result), "d" ((1 << 14) | (thread << 15)) -+ : "cc" -+ ); -+ } -+ -+ /* -+ * bump PC in thread and restore implicit register changes -+ */ -+ asm volatile ( -+ " move.4 CSR, %0 \n\t" -+ " setcsr_flush 0 \n\t" -+ " move.4 pc, %1 \n\t" -+ " move.4 acc0_lo, (%3) \n\t" -+ " move.4 acc0_hi, 4(%3) \n\t" -+ " move.4 acc1_lo, 8(%3) \n\t" -+ " move.4 acc1_hi, 12(%3) \n\t" -+ " move.4 mac_rc16, 16(%3) \n\t" -+ " move.4 CSR, %2 \n\t" -+ " setcsr #0 \n\t" -+ " setcsr_flush 0 \n\t" -+ : -+ : "d"((1 << 14) | (thread << 15)), -+ "d"(pc + 4), "d"(save_csr), "a"(save_acc) -+ : "cc" -+ ); -+} -+ -+/* -+ * unaligned_only() -+ * Return true if either of the unaligned causes are set (and no others). -+ */ -+int unaligned_only(unsigned int cause) -+{ -+ unsigned int unaligned_cause_mask = -+ (1 << TRAP_CAUSE_DST_MISALIGNED) | -+ (1 << TRAP_CAUSE_SRC1_MISALIGNED); -+ -+ BUG_ON(cause == 0); -+ return (cause & unaligned_cause_mask) == cause; -+} ---- /dev/null -+++ b/arch/ubicom32/kernel/vmlinux.lds.S -@@ -0,0 +1,303 @@ -+/* -+ * arch/ubicom32/kernel/vmlinux.lds.S -+ * vmlinux primary linker script -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <asm-generic/vmlinux.lds.h> -+#include <asm/ocm_size.h> -+#include <asm/thread_info.h> -+#include <linux/threads.h> -+ -+/* -+ * Sanity checks to prevent errors later on that are much harder to understand -+ */ -+#if !defined APP_OCM_CODE_SIZE -+#error APP_OCM_CODE_SIZE has not been defined in ocm_size.h -+#endif -+ -+#if !defined APP_OCM_DATA_SIZE -+#error APP_OCM_DATA_SIZE has not been defined in ocm_size.h -+#endif -+ -+/* -+ * XXX Should get these from a common header file, but <asm/ip5000.h> is a mess -+ * and can't be included by anything other than C code at the moment. -+ */ -+/* -+ * Memory Size -+ */ -+#define OCM_SECTOR_SIZE 0x00008000 /* 32K */ -+ -+#if defined(CONFIG_UBICOM32_V3) -+#define OCMSIZE 0x00030000 /* 192K on-chip RAM for both program and data */ -+#elif defined(CONFIG_UBICOM32_V4) -+#define OCMSIZE 0x0003C000 /* 240K on-chip RAM for both program and data */ -+#else -+#error "Unknown IP5K silicon" -+#endif -+ -+#define OCMSTART 0x3ffc0000 /* alias from 0x03000000 for easy jump to/from SDRAM */ -+#define OCMEND (OCMSTART + OCMSIZE) -+ -+/* -+ * The `free' ocm area that ultra does not use. -+ */ -+#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE -+#define OCM_FREE_START (OCMSTART + APP_OCM_CODE_SIZE) -+#define OCM_FREE_LENGTH (OCMSIZE - APP_OCM_CODE_SIZE - APP_OCM_DATA_SIZE) -+#else -+#define OCM_FREE_START OCMEND -+#define OCM_FREE_LENGTH 0 -+#endif -+/* -+ * If you want to limit OCM use for text/data or completely disable it you can change these values. -+ */ -+#define OCM_TEXT_LENGTH OCM_FREE_LENGTH -+#define OCM_DATA_LENGTH OCM_FREE_LENGTH -+ -+#define RAM_START CONFIG_KERNELBASE -+#define RAM_LENGTH (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE) -+#define TEXT ram -+#define DATA ram -+#define INIT ram -+#define BSS ram -+ -+#ifndef DATA_ADDR -+#define DATA_ADDR -+#endif -+ -+OUTPUT_ARCH(ubicom32) -+ENTRY(_start) -+ -+MEMORY { -+ ram : ORIGIN = RAM_START, LENGTH = RAM_LENGTH -+ ocm : ORIGIN = OCM_FREE_START, LENGTH = OCM_FREE_LENGTH -+} -+ -+jiffies = jiffies_64 + 4; -+ -+/* -+ * Fixed locations required by gdb coredumps. -+ * -+ * Note that the names are what gdb is expecting so renaming will break -+ * the toolchain. -+ */ -+__ocm_begin = OCMSTART; -+__ocm_limit = __ocm_begin + OCMSIZE; -+__sdram_begin = CONFIG_RAMBASE; -+__sdram_limit = __sdram_begin + CONFIG_RAMSIZE; -+__filemedia_begin_addr = 0x60000000; -+__filemedia_end_addr = __filemedia_begin_addr + 0x00800000; -+ -+SECTIONS { -+ -+ .fixed_text : { -+ _begin = .; -+ *(.skip_syscall) -+ *(.syscall_entry.text) -+ *(.syscall_exit.text) -+ *(.ret_from_interrupt_to_user.text) -+ *(.ret_from_fork.text) -+ *(.kernel_unprotected) -+ __fixed_text_end = .; -+ } > TEXT -+ . = _begin + SIZEOF(.fixed_text) ; -+ -+ __ocm_text_load_begin = .; -+ __ocm_text_run_begin = OCM_FREE_START ; -+ .ocm_text __ocm_text_run_begin : AT(__ocm_text_load_begin) { -+#if OCM_TEXT_LENGTH -+ *(.ocm_text) -+ *(.sched.text) -+ *(.spinlock.text) -+#include <asm/ocm_text.lds.inc> -+ . = ALIGN(4); -+#endif -+ __ocm_text_run_end = .; -+ __data_begin = ALIGN(OCM_SECTOR_SIZE); -+ } > ocm /* .ocm_text */ -+ -+ .ocm_module_text __ocm_text_run_end (NOLOAD) : AT(__ocm_text_run_end) { -+ __ocm_inst_heap_begin = .; -+ /* Reserve the min requested */ -+ . += (CONFIG_OCM_MODULES_RESERVATION) * 1024; -+#ifdef CONFIG_OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE -+ /* Round up to OCM sector size (we cannot use it for data) */ -+ . = ALIGN(OCM_SECTOR_SIZE); -+#endif -+ __ocm_inst_heap_end = .; -+ /* update __data_begin */ -+ __data_begin = ALIGN(OCM_SECTOR_SIZE); -+ } > ocm /* .ocm_module_text */ -+ -+ . = __ocm_text_load_begin + __ocm_text_run_end - __ocm_text_run_begin ; -+ __ocm_text_load_end = .; -+ -+ __ocm_data_load_begin = .; -+ __ocm_data_run_begin = __data_begin ; -+#if OCM_DATA_LENGTH -+ .ocm_data __ocm_data_run_begin : AT(__ocm_data_load_begin) { -+#if defined(CONFIG_IRQSTACKS_USEOCM) -+ percpu_irq_stacks = .; -+ . += NR_CPUS * THREAD_SIZE; -+#endif -+ *(.ocm_data) -+ . = ALIGN(4) ; -+ __ocm_data_run_end = .; -+ } > ocm -+ . = __ocm_data_load_begin + __ocm_data_run_end - __ocm_data_run_begin ; -+#else -+ __ocm_data_run_end = __ocm_data_run_begin; -+#endif -+ __ocm_data_load_end = .; -+ -+ __ocm_free_begin = __ocm_data_run_end; -+ __ocm_free_end = OCM_FREE_START + OCM_FREE_LENGTH; -+ -+ .text __ocm_data_load_end : AT(__ocm_data_load_end) { -+ . = ALIGN(4); -+ _stext = .; -+ _text = .; -+ TEXT_TEXT -+ SCHED_TEXT -+ LOCK_TEXT -+ *(.text.lock) -+ *(.text.__libgcc_udivmodsi) -+ *(.text.__libgcc_divmodsi) -+ *(.text.__libgcc_muldi3) -+ *(.text.__libgcc_udivmoddi) -+ *(.text.__libgcc_divmoddi) -+ *(.text.*) -+#if OCM_TEXT_LENGTH == 0 -+ *(.ocm_text) -+ *(.sched.text) -+ *(.spinlock.text) -+#endif -+ . = ALIGN(16); /* Exception table */ -+ __start___ex_table = .; -+ *(__ex_table) -+ __stop___ex_table = .; -+ -+ } > TEXT -+ -+ RO_DATA(16) -+ -+ .rodata : {} > TEXT -+ .rodata1 : {} > TEXT -+ .pci_fixup : {} > TEXT -+ .builtin_fw : {} > TEXT -+ .rio_route : {} > TEXT -+ .tracedata : {} > TEXT -+ __ksymtab : {} > TEXT -+ __ksymtab_gpl : {} > TEXT -+ __ksymtab_gpl_future : {} > TEXT -+ __kcrctab_gpl : {} > TEXT -+ __kcrctab_unused : {} > TEXT -+ __kcrctab_unused_gpl : {} > TEXT -+ __kcrctab_gpl_future : {} > TEXT -+ __ksymtab_strings : {} > TEXT -+ __init_rodata : {} > TEXT -+ __param : {} > TEXT -+ -+ _etext = .; -+ -+ .data DATA_ADDR : { -+ . = ALIGN(4); -+ _sdata = . ; -+ DATA_DATA -+#if OCM_DATA_LENGTH == 0 -+ *(.ocm_data) -+#endif -+ . = ALIGN(8192) ; -+ _data_protection_end = .; -+ *(.data.init_task) -+ . = ALIGN(4); -+ _edata = . ; -+ } > DATA -+ -+ .init : { -+ . = ALIGN(4096); -+ __init_begin = .; -+ _sinittext = .; -+ INIT_TEXT -+ _einittext = .; -+ *(.init.rodata) -+ INIT_DATA -+ . = ALIGN(16); -+ __setup_start = .; -+ *(.init.setup) -+ __setup_end = .; -+ __initcall_start = .; -+ INITCALLS -+ __initcall_end = .; -+ __con_initcall_start = .; -+ *(.con_initcall.init) -+ __con_initcall_end = .; -+ ___security_initcall_start = .; -+ *(.security_initcall.init) -+ ___security_initcall_end = .; -+#ifdef CONFIG_BLK_DEV_INITRD -+ . = ALIGN(4); -+ __initramfs_start = .; -+ *(.init.ramfs) -+ __initramfs_end = .; -+#endif -+ . = ALIGN(4096); -+ __per_cpu_start = .; -+ *(.data.percpu) -+ *(.data.percpu.shared_aligned) -+ __per_cpu_end = .; -+ -+ . = ALIGN(4096); -+ __init_end = .; -+ } > INIT -+ -+ .eh_frame : -+ { -+ PROVIDE (___eh_frame_begin = .); -+ *(.eh_frame) -+ LONG (0); -+ PROVIDE (___eh_frame_end = .); -+ } > INIT -+ -+ .bss : { -+ . = ALIGN(4); -+ _sbss = . ; -+ *(.bss) -+ *(COMMON) -+ . = ALIGN(4) ; -+ _ebss = . ; -+ _end = . ; -+ } > BSS -+ -+ /DISCARD/ : { -+ EXIT_TEXT -+ EXIT_DATA -+ *(.exitcall.exit) -+ } -+ -+ NOTES > BSS -+ -+} ---- /dev/null -+++ b/arch/ubicom32/lib/checksum.c -@@ -0,0 +1,250 @@ -+/* -+ * arch/ubicom32/lib/checksum.c -+ * Optimized checksum utilities for IP. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * INET An implementation of the TCP/IP protocol suite for the LINUX -+ * operating system. INET is implemented using the BSD Socket -+ * interface as the means of communication with the user level. -+ * -+ * IP/TCP/UDP checksumming routines -+ * -+ * Authors: Jorge Cwik, <jorge@laser.satlink.net> -+ * Arnt Gulbrandsen, <agulbra@nvg.unit.no> -+ * Tom May, <ftom@netcom.com> -+ * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> -+ * Lots of code moved from tcp.c and ip.c; see those files -+ * for more names. -+ * -+ * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: -+ * Fixed some nasty bugs, causing some horrible crashes. -+ * A: At some points, the sum (%0) was used as -+ * length-counter instead of the length counter -+ * (%1). Thanks to Roman Hodek for pointing this out. -+ * B: GCC seems to mess up if one uses too many -+ * data-registers to hold input values and one tries to -+ * specify d0 and d1 as scratch registers. Letting gcc choose these -+ * registers itself solves the problem. -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ */ -+ -+/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most -+ of the assembly has to go. */ -+ -+#include <linux/module.h> -+#include <net/checksum.h> -+ -+static unsigned long do_csum(const unsigned char * buff, int len) -+{ -+ int count; -+ unsigned long result = 0; -+ -+ /* -+ * The following optimized assembly code cannot handle data length less than 7 bytes! -+ */ -+ if (likely(len >= 7)) { -+ len -= (4 - (int)buff) & 3; -+ count = len >> 2; -+ asm ( -+ " sub.4 d15, #0, %2 \n\t" // set up for jump table -+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) -+ -+ " bfextu d14, %0, #2 \n\t" // test 2 LSB of buff -+ " jmpne.w.f 100f \n\t" -+ " add.4 %1, #0, %1 \n\t" // clear C -+ " moveai a3, #%%hi(1f) \n\t" // table jump -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ " calli a3, 0(a3) \n\t" -+ -+ "100: sub.4 %0, %0, d14 \n\t" -+ " sub.4 d14, #4, d14 \n\t" -+ " lsl.4 d14, d14, #3 \n\t" -+ " add.4 %1, #0, %1 \n\t" // clear C -+ " moveai a3, #%%hi(1f) \n\t" // table jump -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ " bfextu %1, (%0)4++, d14 \n\t" // read first partial word -+ " calli a3, 0(a3) \n\t" -+#if 1 -+ "200: lsl.4 %3, %3, #3 \n\t" -+ " bfrvrs d15, (%0), #0 \n\t" // read last word (partial) -+ " bfextu d15, d15, %3 \n\t" -+ " bfrvrs d15, d15, #0 \n\t" -+ " add.4 %1, d15, %1 \n\t" -+ " addc %1, #0, %1 \n\t" // sample C again -+ " jmpt.w.t 2f \n\t" -+#else -+ "200: move.1 d15, 0(%0) \n\t" -+ " lsl.4 d15, d15, #8 \n\t" -+ " add.4 %1, d15, %1 \n\t" -+ " addc %1, #0, %1 \n\t" // sample C again -+ " add.4 %3, #-1, %3 \n\t" -+ " jmpeq.w.t 2f \n\t" -+ -+ " move.1 d15, 1(%0) \n\t" -+ " add.4 %1, d15, %1 \n\t" -+ " addc %1, #0, %1 \n\t" // sample C again -+ " add.4 %3, #-1, %3 \n\t" -+ " jmpeq.w.t 2f \n\t" -+ -+ " move.1 d15, 2(%0) \n\t" -+ " lsl.4 d15, d15, #8 \n\t" -+ " add.4 %1, d15, %1 \n\t" -+ " addc %1, #0, %1 \n\t" // sample C again -+ " jmpt.w.t 2f \n\t" -+#endif -+#if defined(IP7000) || defined(IP7000_REV2) -+ "300: swapb.2 %1, %1 \n\t" -+#else -+ "300: shmrg.2 %1, %1, %1 \n\t" -+ " lsr.4 %1, %1, #8 \n\t" -+ " bfextu %1, %1, #16 \n\t" -+#endif -+ " jmpt.w.t 3f \n\t" -+ -+ "1: add.4 %1, (%0)4++, %1 \n\t" // first add without C -+ " .rept 31 \n\t" -+ " addc %1, (%0)4++, %1 \n\t" -+ " .endr \n\t" -+ " addc %1, #0, %1 \n\t" // sample C again -+ " add.4 %2, #-32, %2 \n\t" -+ " jmpgt.w.t 1b \n\t" -+ -+ " and.4 %3, #3, %3 \n\t" // check n -+ " jmpne.w.f 200b \n\t" -+ -+ "2: .rept 2 \n\t" -+ " lsr.4 d15, %1, #16 \n\t" -+ " bfextu %1, %1, #16 \n\t" -+ " add.4 %1, d15, %1 \n\t" -+ " .endr \n\t" -+ " btst d14, #3 \n\t" // start from odd address (<< 3)? -+ " jmpne.w.f 300b \n\t" -+ "3: \n\t" -+ -+ : "+a"(buff), "+d"(result), "+d"(count), "+d"(len) -+ : -+ : "d15", "d14", "a3", "cc" -+ ); -+ -+ return result; -+ } -+ -+ /* -+ * handle a few bytes and fold result into 16-bit -+ */ -+ while (len-- > 0) { -+ result += (*buff++ << 8); -+ if (len) { -+ result += *buff++; -+ len--; -+ } -+ } -+ asm ( -+ " .rept 2 \n\t" -+ " lsr.4 d15, %0, #16 \n\t" -+ " bfextu %0, %0, #16 \n\t" -+ " add.4 %0, d15, %0 \n\t" -+ " .endr \n\t" -+ : "+d" (result) -+ : -+ : "d15", "cc" -+ ); -+ -+ return result; -+} -+ -+/* -+ * This is a version of ip_compute_csum() optimized for IP headers, -+ * which always checksum on 4 octet boundaries. -+ */ -+__sum16 ip_fast_csum(const void *iph, unsigned int ihl) -+{ -+ return (__force __sum16)~do_csum(iph,ihl*4); -+} -+ -+/* -+ * computes the checksum of a memory block at buff, length len, -+ * and adds in "sum" (32-bit) -+ * -+ * returns a 32-bit number suitable for feeding into itself -+ * or csum_tcpudp_magic -+ * -+ * this function must be called with even lengths, except -+ * for the last fragment, which may be odd -+ * -+ * it's best to have buff aligned on a 32-bit boundary -+ */ -+__wsum csum_partial(const void *buff, int len, __wsum sum) -+{ -+ unsigned int result = do_csum(buff, len); -+ -+ /* add in old sum, and carry.. */ -+ result += (__force u32)sum; -+ if ((__force u32)sum > result) -+ result += 1; -+ return (__force __wsum)result; -+} -+ -+EXPORT_SYMBOL(csum_partial); -+ -+/* -+ * this routine is used for miscellaneous IP-like checksums, mainly -+ * in icmp.c -+ */ -+__sum16 ip_compute_csum(const void *buff, int len) -+{ -+ return (__force __sum16)~do_csum(buff,len); -+} -+ -+/* -+ * copy from fs while checksumming, otherwise like csum_partial -+ */ -+ -+__wsum -+csum_partial_copy_from_user(const void __user *src, void *dst, -+ int len, __wsum sum, int *csum_err) -+{ -+ if (csum_err) *csum_err = 0; -+ memcpy(dst, (__force const void *)src, len); -+ return csum_partial(dst, len, sum); -+} -+ -+/* -+ * copy from ds while checksumming, otherwise like csum_partial -+ */ -+ -+__wsum -+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) -+{ -+ memcpy(dst, src, len); -+ return csum_partial(dst, len, sum); -+} ---- /dev/null -+++ b/arch/ubicom32/lib/delay.c -@@ -0,0 +1,49 @@ -+/* -+ * arch/ubicom32/lib/delay.c -+ * Ubicom32 implementation of udelay() -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <asm/param.h> -+#include <asm/delay.h> -+#include <asm/ip5000.h> -+ -+/* -+ * read_current_timer() -+ * Return the current value of sysval. -+ */ -+int __devinit read_current_timer(unsigned long *timer_val) -+{ -+ *timer_val = (long)(UBICOM32_IO_TIMER->sysval); -+ return 0; -+} -+ -+ -+void udelay(unsigned long usecs) -+{ -+ _udelay(usecs); -+} -+EXPORT_SYMBOL(udelay); ---- /dev/null -+++ b/arch/ubicom32/lib/Makefile -@@ -0,0 +1,32 @@ -+# -+# arch/ubicom32/lib/Makefile -+# <TODO: Replace with short file description> -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+# -+# Makefile for m68knommu specific library files.. -+# -+ -+lib-y := checksum.o delay.o mem_ubicom32.o muldi3.o lshrdi3.o ashldi3.o ashrdi3.o divmod.o ---- /dev/null -+++ b/arch/ubicom32/lib/mem_ubicom32.c -@@ -0,0 +1,242 @@ -+/* -+ * arch/ubicom32/lib/mem_ubicom32.c -+ * String functions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/compiler.h> -+ -+#define LIKELY likely -+#define UNLIKELY unlikely -+ -+typedef u32_t addr_t; -+ -+/* -+ * memcpy() -+ */ -+void *memcpy(void *dest, const void *src, size_t n) -+{ -+ void *dest_ret = dest; -+ -+ if (LIKELY((((addr_t)dest ^ (addr_t)src) & 3) == 0) && LIKELY(n > 6)) { -+ size_t m; -+ n -= (4 - (addr_t)dest) & 0x03; -+ m = n >> 2; -+ asm volatile ( -+ " sub.4 d15, #0, %2 \n\t" // set up for jump table -+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) -+ " moveai a3, #%%hi(1f) \n\t" -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ -+ " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3) -+ " jmpne.w.f 100f \n\t" -+ " calli a3, 0(a3) \n\t" // 4-byte alignment -+ -+ "100: cmpi d15, #2 \n\t" -+ " jmpne.s.f 101f \n\t" -+ " move.2 (%0)2++, (%1)2++ \n\t" -+ " calli a3, 0(a3) \n\t" // 2-byte alignment -+ -+ "101: move.1 (%0)1++, (%1)1++ \n\t" -+ " jmpgt.s.f 102f \n\t" // 3-byte alignment -+ " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment -+ "102: calli a3, 0(a3) \n\t" -+ -+ "200: cmpi %3, #2 \n\t" -+ " jmplt.s.f 201f \n\t" -+ " move.2 (%0)2++, (%1)2++ \n\t" -+ " jmpeq.s.t 2f \n\t" -+ "201: move.1 (%0)1++, (%1)1++ \n\t" -+ " jmpt.w.t 2f \n\t" -+ -+ "1: .rept 25 \n\t" -+ " movea (%0)4++, (%1)4++ \n\t" -+ " .endr \n\t" -+ " .rept 7 \n\t" -+ " move.4 (%0)4++, (%1)4++ \n\t" -+ " .endr \n\t" -+ " add.4 %2, #-32, %2 \n\t" -+ " jmpgt.w.f 1b \n\t" -+ -+ " and.4 %3, #3, %3 \n\t" // check n -+ " jmpne.w.f 200b \n\t" -+ "2: \n\t" -+ : "+a" (dest), "+a" (src), "+d" (m), "+d" (n) -+ : -+ : "d15", "a3", "memory", "cc" -+ ); -+ -+ return dest_ret; -+ } -+ -+ if (LIKELY((((addr_t)dest ^ (addr_t)src) & 1) == 0) && LIKELY(n > 2)) { -+ size_t m; -+ n -= (addr_t)dest & 0x01; -+ m = n >> 1; -+ asm volatile ( -+ " sub.4 d15, #0, %2 \n\t" // set up for jump table -+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) -+ " moveai a3, #%%hi(1f) \n\t" -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ -+ " btst %0, #0 \n\t" // check bit 0 -+ " jmpne.w.f 100f \n\t" -+ " calli a3, 0(a3) \n\t" // 4-byte alignment -+ -+ "100: move.1 (%0)1++, (%1)1++ \n\t" -+ " calli a3, 0(a3) \n\t" -+ -+ "200: move.1 (%0)1++, (%1)1++ \n\t" -+ " jmpt.w.t 2f \n\t" -+ -+ "1: .rept 32 \n\t" -+ " move.2 (%0)2++, (%1)2++ \n\t" -+ " .endr \n\t" -+ " add.4 %2, #-32, %2 \n\t" -+ " jmpgt.w.f 1b \n\t" -+ -+ " and.4 %3, #1, %3 \n\t" // check n -+ " jmpne.w.f 200b \n\t" -+ "2: \n\t" -+ -+ : "+a" (dest), "+a" (src), "+d" (m), "+d" (n) -+ : -+ : "d15", "a3", "memory", "cc" -+ ); -+ -+ return dest_ret; -+ } -+ -+ asm volatile ( -+ " sub.4 d15, #0, %2 \n\t" -+ " jmpeq.w.f 2f \n\t" -+ " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1) -+ " moveai a3, #%%hi(1f) \n\t" -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ " calli a3, 0(a3) \n\t" -+ -+ "1: .rept 16 \n\t" -+ " move.1 (%0)1++, (%1)1++ \n\t" -+ " .endr \n\t" -+ " add.4 %2, #-16, %2 \n\t" -+ " jmpgt.w.f 1b \n\t" -+ "2: \n\t" -+ -+ : "+a" (dest), "+a" (src), "+d" (n) -+ : -+ : "d15", "a3", "memory", "cc" -+ ); -+ -+ return dest_ret; -+} -+ -+/* -+ * memset() -+ */ -+void *memset(void *s, int c, size_t n) -+{ -+ void *s_ret = s; -+ -+ if (LIKELY(n > 6)) { -+ size_t m; -+ n -= (4 - (addr_t)s) & 0x03; -+ m = n >> 2; -+ asm volatile ( -+ " sub.4 d15, #0, %2 \n\t" // set up for jump table -+ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1) -+ " shmrg.1 %1, %1, %1 \n\t" -+ " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c -+ " moveai a3, #%%hi(1f) \n\t" -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ -+ " bfextu d15, %0, #2 \n\t" // d15 = (s & 3) -+ " jmpne.w.f 100f \n\t" -+ " calli a3, 0(a3) \n\t" // 4-byte alignment -+ -+ "100: cmpi d15, #2 \n\t" -+ " jmpne.s.f 101f \n\t" -+ " move.2 (%0)2++, %1 \n\t" -+ " calli a3, 0(a3) \n\t" // 2-byte alignment -+ -+ "101: move.1 (%0)1++, %1 \n\t" -+ " jmpgt.s.f 102f \n\t" // 3-byte alignment -+ " move.2 (%0)2++, %1 \n\t" // 1-byte alignment -+ "102: calli a3, 0(a3) \n\t" -+ -+ "200: cmpi %3, #2 \n\t" -+ " jmplt.s.f 201f \n\t" -+ " move.2 (%0)2++, %1 \n\t" -+ " jmpeq.s.t 2f \n\t" -+ "201: move.1 (%0)1++, %1 \n\t" -+ " jmpt.w.t 2f \n\t" -+ -+ "1: .rept 25 \n\t" -+ " movea (%0)4++, %1 \n\t" -+ " .endr \n\t" -+ " .rept 7 \n\t" -+ " move.4 (%0)4++, %1 \n\t" -+ " .endr \n\t" -+ " add.4 %2, #-32, %2 \n\t" -+ " jmpgt.w.f 1b \n\t" -+ -+ " and.4 %3, #3, %3 \n\t" // test bit 1 of n -+ " jmpne.w.f 200b \n\t" -+ "2: \n\t" -+ -+ : "+a" (s), "+d" (c), "+d" (m), "+d" (n) -+ : -+ : "d15", "a3", "memory", "cc" -+ ); -+ -+ return s_ret; -+ } -+ -+ asm volatile ( -+ " sub.4 d15, #0, %2 \n\t" -+ " jmpeq.w.f 2f \n\t" -+ " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1) -+ " moveai a3, #%%hi(1f) \n\t" -+ " lea.1 a3, %%lo(1f)(a3) \n\t" -+ " lea.4 a3, (a3,d15) \n\t" -+ " calli a3, 0(a3) \n\t" -+ -+ "1: .rept 8 \n\t" -+ " move.1 (%0)1++, %1 \n\t" -+ " .endr \n\t" -+ "2: \n\t" -+ -+ : "+a" (s), "+d" (c), "+d" (n) -+ : -+ : "d15", "a3", "memory", "cc" -+ ); -+ -+ return s_ret; -+} ---- /dev/null -+++ b/arch/ubicom32/mach-common/audio_tio.c -@@ -0,0 +1,115 @@ -+/* -+ * arch/ubicom32/mach-common/audio_tio.c -+ * Generic initialization for Ubicom32 Audio -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/platform_device.h> -+#include <linux/types.h> -+ -+#include <asm/devtree.h> -+#include <asm/audio_tio.h> -+#include <asm/ubi32-pcm.h> -+ -+/* -+ * The number of audio_tio's currently allocated, used for .id -+ */ -+static int __initdata audio_tio_count; -+ -+/* -+ * The maximum number of resources that the audio_tio will have. -+ * Currently 3, a register space, and up to 2 interrupts. -+ */ -+#define AUDIO_TIO_MAX_RESOURCES 3 -+ -+/* -+ * audio_tio_alloc -+ * Checks the device tree and allocates a platform_device if found -+ */ -+struct platform_device * __init audio_tio_alloc(const char *driver_name, -+ const char *node_name, int priv_bytes) -+{ -+ struct platform_device *pdev; -+ struct resource *res; -+ struct audiotionode *audio_node; -+ struct ubi32pcm_platform_data *pdata; -+ -+ /* -+ * Check the device tree for the audio_tio -+ */ -+ audio_node = (struct audiotionode *)devtree_find_node(node_name); -+ if (!audio_node) { -+ printk(KERN_WARNING "audio TIO '%s' found\n", node_name); -+ return NULL; -+ } -+ -+ if (audio_node->version != AUDIOTIONODE_VERSION) { -+ printk(KERN_WARNING "audio_tio not compatible\n"); -+ return NULL; -+ } -+ -+ /* -+ * Dynamically create the platform_device structure and resources -+ */ -+ pdev = kzalloc(sizeof(struct platform_device) + -+ sizeof(struct ubi32pcm_platform_data) + -+ priv_bytes , GFP_KERNEL); -+ if (!pdev) { -+ printk(KERN_WARNING "audio_tio could not alloc pdev\n"); -+ return NULL; -+ } -+ -+ res = kzalloc(sizeof(struct resource) * AUDIO_TIO_MAX_RESOURCES, -+ GFP_KERNEL); -+ if (!res) { -+ kfree(pdev); -+ printk(KERN_WARNING "audio_tio could not alloc res\n"); -+ return NULL; -+ } -+ -+ pdev->name = driver_name; -+ pdev->id = audio_tio_count++; -+ pdev->resource = res; -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ res[0].start = (u32_t)(audio_node->regs); -+ res[0].end = (u32_t)(audio_node->regs); -+ res[0].flags = IORESOURCE_MEM; -+ res[1 + AUDIOTIO_TX_IRQ_RESOURCE].start = audio_node->dn.sendirq; -+ res[1 + AUDIOTIO_TX_IRQ_RESOURCE].flags = IORESOURCE_IRQ; -+ res[1 + AUDIOTIO_RX_IRQ_RESOURCE].start = audio_node->dn.recvirq; -+ res[1 + AUDIOTIO_RX_IRQ_RESOURCE].flags = IORESOURCE_IRQ; -+ pdev->num_resources = 3; -+ -+ printk(KERN_INFO "AudioTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n", -+ audio_tio_count - 1, node_name, audio_node->dn.sendirq, -+ audio_node->dn.recvirq, audio_node->regs, pdev, res); -+ pdata = (struct ubi32pcm_platform_data *)(pdev + 1); -+ pdev->dev.platform_data = pdata; -+ pdata->node_name = node_name; -+ if (priv_bytes) { -+ pdata->priv_data = pdata + 1; -+ } -+ -+ return pdev; -+} -+ ---- /dev/null -+++ b/arch/ubicom32/mach-common/board.c -@@ -0,0 +1,63 @@ -+/* -+ * arch/ubicom32/mach-common/board.c -+ * Board init and support code. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/cpu.h> -+#include <asm/devtree.h> -+ -+struct boardnode { -+ struct devtree_node dn; -+ const char *revision; -+}; -+ -+static const struct boardnode *bn; -+ -+/* -+ * board_get_revision() -+ * Returns revision string of the board. -+ */ -+const char *board_get_revision(void) -+{ -+ if (!bn) { -+ return "NULL"; -+ } -+ -+ return bn->revision; -+} -+ -+/* -+ * board_init -+ */ -+void __init board_init(void) -+{ -+ bn = (struct boardnode *)devtree_find_node("board"); -+ if (!bn) { -+ printk(KERN_WARNING "board node not found\n"); -+ return; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/mach-common/bootargs.c -@@ -0,0 +1,63 @@ -+/* -+ * arch/ubicom32/mach-common/bootargs.c -+ * Board init and support code. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/cpu.h> -+#include <asm/devtree.h> -+ -+struct bootargsnode { -+ struct devtree_node dn; -+ const char cmdline[512]; -+}; -+ -+static const struct bootargsnode *ban; -+ -+/* -+ * bootargs_get_cmdline() -+ * Returns kernel boot arguments set by the bootloader. -+ */ -+const char *bootargs_get_cmdline(void) -+{ -+ if (!ban) { -+ return ""; -+ } -+ -+ return ban->cmdline; -+} -+ -+/* -+ * bootargs_init -+ */ -+void __init bootargs_init(void) -+{ -+ ban = (struct bootargsnode *)devtree_find_node("bootargs"); -+ if (!ban) { -+ printk(KERN_WARNING "bootargs node not found\n"); -+ return; -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/mach-common/cachectl.c -@@ -0,0 +1,125 @@ -+/* -+ * arch/ubicom32/mach-common/cachectl.c -+ * Architecture cache control support -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/types.h> -+#include <linux/module.h> -+#include <asm/cachectl.h> -+ -+/* -+ * The write queue flush procedure in mem_cache_control needs to make -+ * DCACHE_WRITE_QUEUE_LENGTH writes to DDR (not OCM). Here we reserve some -+ * memory for this operation. -+ * Allocate array of cache lines of least DCACHE_WRITE_QUEUE_LENGTH + 1 words in -+ * length rounded up to the nearest cache line. -+ */ -+#define CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE \ -+ ALIGN(sizeof(int) * (DCACHE_WRITE_QUEUE_LENGTH + 1), CACHE_LINE_SIZE) -+ -+static char cache_write_queue_flush_area[CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE] -+ __attribute__((aligned(CACHE_LINE_SIZE))); -+ -+/* -+ * ONE_CCR_ADDR_OP is a helper macro that executes a single CCR operation. -+ */ -+#define ONE_CCR_ADDR_OP(cc, op_addr, op) \ -+ do { \ -+ asm volatile ( \ -+ " btst "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)" \n\t" \ -+ " jmpne.f .-4 \n\t" \ -+ " move.4 "D(CCR_ADDR)"(%0), %1 \n\t" \ -+ " move.1 "D(CCR_CTRL+3)"(%0), %2 \n\t" \ -+ " bset "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)" \n\t" \ -+ " cycles 2 \n\t" \ -+ " btst "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_DONE)" \n\t" \ -+ " jmpeq.f .-4 \n\t" \ -+ : \ -+ : "a"(cc), "r"(op_addr), "r"(op & 0xff) \ -+ : "cc" \ -+ ); \ -+ } while (0) -+ -+/* -+ * mem_cache_control() -+ * Special cache control operation -+ */ -+void mem_cache_control(unsigned long cc, unsigned long begin_addr, -+ unsigned long end_addr, unsigned long op) -+{ -+ unsigned long op_addr; -+ -+ if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) { -+ /* -+ * We ensure all previous writes have left the data cache write -+ * queue by sending DCACHE_WRITE_QUEUE_LENGTH writes (to -+ * different words) down the queue. If this is not done it's -+ * possible that the data we are trying to flush hasn't even -+ * entered the data cache. -+ * The +1 ensure that the final 'flush' is actually a flush. -+ */ -+ int *flush_area = (int *)cache_write_queue_flush_area; -+ asm volatile( -+ " .rept "D(DCACHE_WRITE_QUEUE_LENGTH + 1)" \n\t" -+ " move.4 (%0)4++, d0 \n\t" -+ " .endr \n\t" -+ : "+a"(flush_area) -+ ); -+ } -+ -+ /* -+ * Calculate the cache lines we need to operate on that include -+ * begin_addr though end_addr. -+ */ -+ begin_addr = begin_addr & ~(CACHE_LINE_SIZE - 1); -+ end_addr = (end_addr + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1); -+ op_addr = begin_addr; -+ -+ do { -+ ONE_CCR_ADDR_OP(cc, op_addr, op); -+ op_addr += CACHE_LINE_SIZE; -+ } while (likely(op_addr < end_addr)); -+ -+ if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) { -+ /* -+ * It turns out that when flushing the data cache the last flush -+ * isn't actually complete at this point. This is because there -+ * is another write buffer on the DDR side of the cache that is -+ * arbitrated with the I-Cache. -+ * -+ * The only foolproof method that ensures that the last data -+ * cache flush *actually* completed is to do another flush on a -+ * dirty cache line. This flush will block until the DDR write -+ * buffer is empty. -+ * -+ * Rather than creating a another dirty cache line, we use the -+ * flush_area above as we know that it is dirty from previous -+ * writes. -+ */ -+ ONE_CCR_ADDR_OP(cc, cache_write_queue_flush_area, op); -+ } -+} -+EXPORT_SYMBOL(mem_cache_control); ---- /dev/null -+++ b/arch/ubicom32/mach-common/common.c -@@ -0,0 +1,64 @@ -+/* -+ * arch/ubicom32/mach-common/common.c -+ * Common platform support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/version.h> -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/list.h> -+#include <linux/errno.h> -+#include <linux/err.h> -+#include <linux/string.h> -+#include <linux/clk.h> -+#include <linux/mutex.h> -+#include <linux/platform_device.h> -+ -+ -+/* Minimum CLK support */ -+ -+struct clk *clk_get(struct device *dev, const char *id) -+{ -+ return ERR_PTR(-ENOENT); -+} -+EXPORT_SYMBOL(clk_get); -+ -+void clk_put(struct clk *clk) -+{ -+} -+EXPORT_SYMBOL(clk_put); -+ -+int clk_enable(struct clk *clk) -+{ -+ return 0; -+} -+EXPORT_SYMBOL(clk_enable); -+ -+ -+void clk_disable(struct clk *clk) -+{ -+} -+EXPORT_SYMBOL(clk_disable); ---- /dev/null -+++ b/arch/ubicom32/mach-common/io.c -@@ -0,0 +1,250 @@ -+/* -+ * arch/ubicom32/mach-common/io.c -+ * PCI I/O memory read/write support functions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/io.h> -+ -+#ifdef CONFIG_PCI -+unsigned char ioread8(void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u8(addr); -+ else -+ return (unsigned char)(*(volatile unsigned char *)addr); -+} -+EXPORT_SYMBOL(ioread8); -+ -+unsigned short ioread16(void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u16(addr); -+ else -+ return (unsigned short)(*(volatile unsigned short *)addr); -+} -+EXPORT_SYMBOL(ioread16); -+ -+unsigned int ioread32(void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ return ubi32_pci_read_u32(addr); -+ else -+ return (unsigned int)(*(volatile unsigned int *)addr); -+} -+EXPORT_SYMBOL(ioread32); -+ -+void iowrite32(unsigned int val, void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u32(val, addr); -+ else -+ *(volatile unsigned int *)addr = val; -+} -+EXPORT_SYMBOL(iowrite32); -+ -+void iowrite16(unsigned short val, void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u16(val, addr); -+ else -+ *(volatile unsigned short *)addr = val; -+} -+EXPORT_SYMBOL(iowrite16); -+ -+void iowrite8(unsigned char val, void __iomem *addr) -+{ -+ if (IS_PCI_ADDRESS(addr)) -+ ubi32_pci_write_u8(val, addr); -+ else -+ *(volatile unsigned char *)addr = val; -+} -+EXPORT_SYMBOL(iowrite8); -+ -+void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len) -+{ -+ if (IS_PCI_ADDRESS(from)) { -+ if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) { -+ while ((int)len >= 4) { -+ *(u32_t *)to = ubi32_pci_read_u32(from); -+ to += 4; -+ from += 4; -+ len -= 4; -+ } -+ } else if ((((u32_t)from & 0x1) == 0) && -+ (((u32_t)to & 0x1) == 0)) { -+ while ((int)len >= 2) { -+ *(u16_t *)to = ubi32_pci_read_u16(from); -+ to += 2; -+ from += 2; -+ len -= 2; -+ } -+ } -+ -+ while (len) { -+ *(u8_t *)to = ubi32_pci_read_u8(from); -+ to++; -+ from++; -+ len--; -+ } -+ } else -+ memcpy(to, (void *)from, len); -+} -+EXPORT_SYMBOL(memcpy_fromio); -+ -+void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len) -+{ -+ if (IS_PCI_ADDRESS(to)) { -+ if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) { -+ while ((int)len >= 4) { -+ ubi32_pci_write_u32(*(u32_t *)from, to); -+ to += 4; -+ from += 4; -+ len -= 4; -+ } -+ } else if ((((u32_t)from & 0x1) == 0) && -+ (((u32_t)to & 0x1) == 0)) { -+ while ((int)len >= 2) { -+ ubi32_pci_write_u16(*(u16_t *)from, to); -+ to += 2; -+ from += 2; -+ len -= 2; -+ } -+ } -+ -+ while (len) { -+ ubi32_pci_write_u8(*(u8_t *)from, to); -+ from++; -+ to++; -+ len--; -+ } -+ } else -+ memcpy((void *)to, from, len); -+ -+} -+EXPORT_SYMBOL(memcpy_toio); -+ -+void memset_io(volatile void __iomem *addr, int val, size_t len) -+{ -+ if (IS_PCI_ADDRESS(addr)) { -+ while (len) { -+ ubi32_pci_write_u8((unsigned char)val, addr); -+ addr++; -+ len--; -+ } -+ } else -+ memset((void *)addr, val, len); -+ -+} -+EXPORT_SYMBOL(memset_io); -+ -+void ioread8_rep(void __iomem *port, void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ *(u8_t *)buf = ioread8(port); -+ buf++; -+ count--; -+ } -+ } else { -+ insb((unsigned int)port, buf, count); -+ } -+ -+} -+EXPORT_SYMBOL(ioread8_rep); -+ -+void ioread16_rep(void __iomem *port, void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ *(u16_t *)buf = ioread16(port); -+ buf += 2; -+ count--; -+ } -+ } else { -+ insw((unsigned int)port, buf, count); -+ } -+} -+EXPORT_SYMBOL(ioread16_rep); -+ -+void ioread32_rep(void __iomem *port, void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ *(u32_t *)buf = ioread32(port); -+ buf += 4; -+ count--; -+ } -+ } else { -+ insl((unsigned int)port, buf, count); -+ } -+} -+EXPORT_SYMBOL(ioread32_rep); -+ -+void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ iowrite8(*(u8_t *)buf, port); -+ buf++; -+ count--; -+ } -+ } else { -+ outsb((unsigned int)port, buf, count); -+ } -+ -+} -+EXPORT_SYMBOL(iowrite8_rep); -+ -+void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ iowrite16(*(u16_t *)buf, port); -+ buf += 2; -+ count--; -+ } -+ } else { -+ outsw((unsigned int)port, buf, count); -+ } -+} -+EXPORT_SYMBOL(iowrite16_rep); -+ -+void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) -+{ -+ if (IS_PCI_ADDRESS(port)) { -+ while (count) { -+ iowrite32(*(u32_t *)buf, port); -+ buf += 4; -+ count--; -+ } -+ } else { -+ outsl((unsigned int)port, buf, count); -+ } -+} -+EXPORT_SYMBOL(iowrite32_rep); -+ -+#endif /* CONFIG_PCI */ ---- /dev/null -+++ b/arch/ubicom32/mach-common/Makefile -@@ -0,0 +1,38 @@ -+# -+# arch/ubicom32/mach-common/Makefile -+# Makefile for Ubicom32 generic drivers/code. -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+obj-y += cachectl.o common.o usb_tio.o usb.o ubi32-gpio.o board.o bootargs.o -+obj-$(CONFIG_PCI) += pci.o io.o -+ -+obj-$(CONFIG_FB_UBICOM32) += vdc_tio.o -+obj-$(CONFIG_UBICOM_HID) += ubicom32hid.o -+obj-$(CONFIG_UBICOM_INPUT) += ubicom32input.o -+obj-$(CONFIG_UBICOM_INPUT_I2C) += ubicom32input_i2c.o -+obj-$(CONFIG_UIO_UBICOM32RING) += ring_tio.o -+obj-$(CONFIG_SND_UBI32) += audio_tio.o -+ ---- /dev/null -+++ b/arch/ubicom32/mach-common/pci.c -@@ -0,0 +1,1157 @@ -+/* -+ * arch/ubicom32/mach-common/pci.c -+ * PCI interface management. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/pci.h> -+#include <linux/slab.h> -+#include <linux/init.h> -+#include <linux/io.h> -+#include <linux/seq_file.h> -+#include <linux/proc_fs.h> -+ -+#include <asm/devtree.h> -+#include <asm/ip5000.h> -+#include <asm/ubicom32-common.h> -+ -+static int debug_pci = 1 ; -+ -+/* #define PCI_USE_INTERNAL_LOCK 1 */ -+ -+#ifdef PCI_USE_INTERNAL_LOCK -+#define PCI_LOCK(lock, irqflag) pci_lock_acquire(irqflag) -+#define PCI_UNLOCK(lock, irqflag) pci_lock_release(irqflag) -+#elif defined(CONFIG_SMP) -+static DEFINE_SPINLOCK(pci_master_lock); -+#define PCI_LOCK(lock, irqflag) spin_lock_irqsave(lock, irqflag) -+#define PCI_UNLOCK(lock, irqflag) spin_unlock_irqrestore(lock, irqflag) -+#else -+#define PCI_LOCK(lock, irqflag) local_irq_save(irqflag) -+#define PCI_UNLOCK(lock, irqflag) local_irq_restore(irqflag) -+#endif -+ -+#define PCI_DEV0_IDSEL CONFIG_PCI_DEV0_IDSEL -+#define PCI_DEV1_IDSEL CONFIG_PCI_DEV1_IDSEL -+ -+/* -+ * PCI commands -+ */ -+#define PCI_CMD_INT_ACK 0x00 /* not supported */ -+#define PCI_CMD_SPECIAL 0x01 /* not supported */ -+#define PCI_CMD_IO_READ 0x02 -+#define PCI_CMD_IO_WRITE 0x03 -+#define PCI_CMD_MEM_READ 0x06 -+#define PCI_CMD_MEM_WRITE 0x07 -+#define PCI_CMD_CFG_READ 0x0a -+#define PCI_CMD_CFG_WRITE 0x0b -+#define PCI_CMD_MEM_READ_MULT 0x0c /* not supported */ -+#define PCI_CMD_DUAL_ADDR 0x0d /* not supported */ -+#define PCI_CMD_MEM_READ_LINE 0x0e /* not supported */ -+#define PCI_CMD_MEM_WRITE_INVAL 0x0f /* not supported */ -+/* -+ * Status codes, returned by pci_read_u32() and pci_write_u32() -+ */ -+#define PCI_RESP_IN_PROGRESS 0xff /* request still in queue */ -+#define PCI_RESP_OK 0 -+/* -+ * The following codes indicate that the request has completed -+ */ -+#define PCI_RESP_NO_DEVSEL 1 /* timeout before target asserted -+ * DEVSEL! */ -+#define PCI_RESP_LOST_DEVSEL 2 /* had DEVSEL, but went away before -+ * transfer completed! */ -+#define PCI_RESP_BAD_TRDY 3 /* target asserted TRDY without -+ * DEVSEL! */ -+#define PCI_RESP_NO_TRDY 4 /* timeout before target asserted -+ * TRDY! */ -+#define PCI_RESP_BAD_STOP 5 /* target asserted STOP and TRDY -+ * without DEVSEL! */ -+#define PCI_RESP_TARGET_ABORT 6 -+#define PCI_RESP_TARGET_RETRY 7 -+#define PCI_RESP_TARGET_DISCONNECT 8 -+#define PCI_RESP_MISMATCH 9 /* data read back doesn't match data -+ * written - debug only, the core PCI -+ * routines never return this */ -+#define PCI_RESP_DET_SERR 10 -+#define PCI_RESP_DET_PERR 11 -+#define PCI_RESP_MALFORMED_REQ 12 /* Could be due to misaligned -+ * requests or invalid address */ -+#define PCI_RESP_NO_RESOURCE 13 /* Could be memory or other resourse -+ * like queue space */ -+#define PCI_RESP_ERROR 14 /* All emcompassing error */ -+ -+/* registers in PCI config space */ -+#define PCI_DEVICE_VENDOR_ID_REG 0x00 -+#define PCI_STATUS_COMMAND_REG 0x04 -+#define PCI_CLASS_REVISION_REG 0x08 -+#define PCI_BHLC_REG 0x0c /* BIST, Header type, Latency -+ * timer, Cache line size */ -+#define PCI_BASE_ADDR_REG 0x10 -+#define PCI_BASE_REG_COUNT 6 -+#define CARDBUS_CIS_PTR_REG 0x28 -+#define PCI_SUB_SYSTEM_ID_REG 0x2c -+#define PCI_EXP_ROM_ADDR_REG 0x30 -+#define PCI_CAP_PTR_REG 0x34 -+#define PCI_LGPL_REG 0x3C /* max Latency, min Gnt, interrupt -+ * Pin, interrupt Line */ -+ -+struct pci_master_request { -+ volatile u32_t pci_address; /* must be 4-byte aligned */ -+ volatile u32_t data; /* must be 4-byte aligned */ -+ volatile u8_t cmd; -+ volatile u8_t byte_valid; -+ volatile u8_t status; -+}; -+ -+struct pci_devnode { -+ struct devtree_node dn; -+ u32_t pci_idsel_0; -+ u32_t pci_idsel_1; -+ u32_t pci_cpu_address; -+ struct pci_master_request volatile *volatile req; -+}; -+ -+static struct pci_master_request req; /* globally used for faster master write -+ * (discarding result when possible) */ -+static struct pci_devnode *pci_node; -+ -+#if !defined(CONFIG_DEBUG_PCIMEASURE) -+#define PCI_DECLARE_MEASUREMENT -+#define PCI_MEASUREMENT_START() -+#define PCI_MEASUREMENT_END(idx) -+#else -+#define PCI_DECLARE_MEASUREMENT \ -+ int __diff; \ -+ unsigned int __tstart; -+ -+#define PCI_MEASUREMENT_START() \ -+ __tstart = UBICOM32_IO_TIMER->sysval; -+ -+#define PCI_MEASUREMENT_END(idx) \ -+ __diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \ -+ pci_measurement_update((idx), __diff); -+ -+#define PCI_WEIGHT 32 -+ -+struct pci_measurement { -+ volatile unsigned int min; -+ volatile unsigned int avg; -+ volatile unsigned int max; -+}; -+ -+enum pci_measurement_list { -+ PCI_MEASUREMENT_READ32, -+ PCI_MEASUREMENT_WRITE32, -+ PCI_MEASUREMENT_READ16, -+ PCI_MEASUREMENT_WRITE16, -+ PCI_MEASUREMENT_READ8, -+ PCI_MEASUREMENT_WRITE8, -+ PCI_MEASUREMENT_LAST, -+}; -+ -+static const char *pci_measurement_name_list[PCI_MEASUREMENT_LAST] = { -+ "READ32", -+ "WRITE32", -+ "READ16", -+ "WRITE16", -+ "READ8", -+ "WRITE8" -+}; -+static struct pci_measurement pci_measurements[PCI_MEASUREMENT_LAST]; -+ -+/* -+ * pci_measurement_update() -+ * Update an entry in the measurement array for this idx. -+ */ -+static void pci_measurement_update(int idx, int sample) -+{ -+ struct pci_measurement *pm = &pci_measurements[idx]; -+ if ((pm->min == 0) || (pm->min > sample)) { -+ pm->min = sample; -+ } -+ if (pm->max < sample) { -+ pm->max = sample; -+ } -+ pm->avg = ((pm->avg * (PCI_WEIGHT - 1)) + sample) / PCI_WEIGHT; -+} -+#endif -+ -+#if defined(PCI_USE_INTERNAL_LOCK) -+/* -+ * pci_lock_release() -+ * Release the PCI lock. -+ */ -+static void pci_lock_release(unsigned long irqflag) -+{ -+ UBICOM32_UNLOCK(PCI_LOCK_BIT); -+} -+ -+/* -+ * pci_lock_acquire() -+ * Acquire the PCI lock, spin if not available. -+ */ -+static void pci_lock_acquire(unsigned long irqflag) -+{ -+ UBICOM32_LOCK(PCI_LOCK_BIT); -+} -+#endif -+ -+/* -+ * pci_set_hrt_interrupt() -+ */ -+static inline void pci_set_hrt_interrupt(struct pci_devnode *pci_node) -+{ -+ ubicom32_set_interrupt(pci_node->dn.sendirq); -+} -+ -+/* -+ * pci_read_u32() -+ * Synchronously read 32 bits from PCI space. -+ */ -+u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data) -+{ -+ u8 status; -+ unsigned long irqflag; -+ -+ -+ /* -+ * Fill in the request. -+ */ -+ volatile struct pci_master_request lreq; -+ PCI_DECLARE_MEASUREMENT; -+ -+ lreq.pci_address = address; -+ lreq.cmd = pci_cmd; -+ lreq.byte_valid = 0xf; /* enable all bytes */ -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ pci_node->req = &lreq; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ while (unlikely(pci_node->req == &lreq)) -+ ; -+ status = lreq.status; -+ if (likely(status == PCI_RESP_OK)) -+ *data = le32_to_cpu(lreq.data); -+ else -+ *data = 0; -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ32); -+ return status; -+} -+ -+/* -+ * pci_write_u32() -+ * Asyncrhnously or synchronously write 32 bits to PCI master space. -+ */ -+u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data) -+{ -+ unsigned long irqflag; -+ PCI_DECLARE_MEASUREMENT; -+ -+ /* -+ * Wait for any previous write or pending read to complete. -+ * -+ * We use a global data block because once we write the request -+ * we do not wait for it to complete before exiting. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ req.pci_address = address; -+ req.data = cpu_to_le32(data); -+ req.cmd = pci_cmd; -+ req.byte_valid = 0xf; /* enable all bytes */ -+ pci_node->req = &req; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE32); -+ return PCI_RESP_OK; -+} -+ -+/* -+ * pci_read_u16() -+ * Synchronously read 16 bits from PCI space. -+ */ -+u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data) -+{ -+ u8 status; -+ unsigned long irqflag; -+ -+ /* -+ * Fill in the request. -+ */ -+ volatile struct pci_master_request lreq; -+ PCI_DECLARE_MEASUREMENT; -+ -+ lreq.pci_address = address & ~2; -+ lreq.cmd = pci_cmd; -+ lreq.byte_valid = (address & 2) ? 0xc : 0x3; -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ pci_node->req = &lreq; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ while (unlikely(pci_node->req == &lreq)) -+ ; -+ status = lreq.status; -+ if (likely(status == PCI_RESP_OK)) { -+ lreq.data = le32_to_cpu(lreq.data); -+ *data = (u16)((address & 2) ? (lreq.data >> 16) : lreq.data); -+ } else -+ *data = 0; -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ16); -+ return status; -+} -+ -+/* -+ * pci_write_u16() -+ * Asyncrhnously or synchronously write 16 bits to PCI master space. -+ */ -+u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data) -+{ -+ unsigned long irqflag; -+ PCI_DECLARE_MEASUREMENT; -+ -+ /* -+ * Wait for any previous write or pending read to complete. -+ * -+ * We use a global data block because once we write the request -+ * we do not wait for it to complete before exiting. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ req.pci_address = address & ~2; -+ req.data = (u32)data; -+ req.data = cpu_to_le32((address & 2) ? (req.data << 16) : req.data); -+ req.cmd = pci_cmd; -+ req.byte_valid = (address & 2) ? 0xc : 0x3; -+ pci_node->req = &req; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE16); -+ return PCI_RESP_OK; -+} -+ -+/* -+ * pci_read_u8() -+ * Synchronously read 8 bits from PCI space. -+ */ -+u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data) -+{ -+ u8 status; -+ unsigned long irqflag; -+ -+ /* -+ * Fill in the request. -+ */ -+ volatile struct pci_master_request lreq; -+ PCI_DECLARE_MEASUREMENT; -+ -+ lreq.pci_address = address & ~3; -+ lreq.cmd = pci_cmd; -+ lreq.byte_valid = 1 << (address & 0x3); -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ pci_node->req = &lreq; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ while (unlikely(pci_node->req == &lreq)) -+ ; -+ status = lreq.status; -+ if (likely(status == PCI_RESP_OK)) { -+ *data = (u8)(lreq.data >> (24 - ((address & 0x3) << 3))); -+ } else -+ *data = 0; -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ8); -+ return status; -+} -+ -+/* -+ * pci_write_u8() -+ * Asyncrhnously or synchronously write 8 bits to PCI master space. -+ */ -+u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data) -+{ -+ unsigned long irqflag; -+ PCI_DECLARE_MEASUREMENT; -+ -+ /* -+ * Wait for any previous write or pending read to complete. -+ * -+ * We use a global data block because once we write the request -+ * we do not wait for it to complete before exiting. -+ */ -+ PCI_MEASUREMENT_START(); -+ PCI_LOCK(&pci_master_lock, irqflag); -+ while (unlikely(pci_node->req == &req)) -+ ; -+ req.pci_address = address & ~3; -+ req.data = ((u32)data << (24 - ((address & 0x3) << 3))); -+ req.cmd = pci_cmd; -+ req.byte_valid = 1 << (address & 0x3); -+ pci_node->req = &req; -+ pci_set_hrt_interrupt(pci_node); -+ PCI_UNLOCK(&pci_master_lock, irqflag); -+ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE8); -+ return PCI_RESP_OK; -+} -+ -+unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr) -+{ -+ unsigned int data; -+ pci_read_u32(PCI_CMD_MEM_READ, (u32)addr, &data); -+ return data; -+} -+EXPORT_SYMBOL(ubi32_pci_read_u32); -+ -+unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr) -+{ -+ unsigned short data; -+ pci_read_u16(PCI_CMD_MEM_READ, (u32)addr, &data); -+ return data; -+} -+EXPORT_SYMBOL(ubi32_pci_read_u16); -+ -+unsigned char ubi32_pci_read_u8(const volatile void __iomem *addr) -+{ -+ unsigned char data; -+ pci_read_u8(PCI_CMD_MEM_READ, (u32)addr, &data); -+ return data; -+} -+EXPORT_SYMBOL(ubi32_pci_read_u8); -+ -+void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr) -+{ -+ pci_write_u32(PCI_CMD_MEM_WRITE, (u32)addr, val); -+} -+EXPORT_SYMBOL(ubi32_pci_write_u32); -+ -+void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr) -+{ -+ pci_write_u16(PCI_CMD_MEM_WRITE, (u32)addr, val); -+} -+EXPORT_SYMBOL(ubi32_pci_write_u16); -+ -+void ubi32_pci_write_u8(unsigned char val, const void volatile __iomem *addr) -+{ -+ pci_write_u8(PCI_CMD_MEM_WRITE, (u32)addr, val); -+} -+EXPORT_SYMBOL(ubi32_pci_write_u8); -+ -+#if defined(CONFIG_DEBUG_PCIMEASURE) -+static unsigned int pci_cycles_to_nano(unsigned int cycles, unsigned int frequency) -+{ -+ unsigned int nano = ((cycles * 1000) / (frequency / 1000000)); -+ return nano; -+} -+ -+/* -+ * pci_measurement_show() -+ * Print out the min, avg, max values for each PCI transaction type. -+ * -+ * By request, the max value is reset after each dump. -+ */ -+static int pci_measurement_show(struct seq_file *p, void *v) -+{ -+ unsigned int min, avg, max; -+ unsigned int freq = processor_frequency(); -+ int trans = *((loff_t *) v); -+ -+ if (trans == 0) { -+ seq_puts(p, "min\tavg\tmax\t(nano-seconds)\n"); -+ } -+ -+ if (trans >= PCI_MEASUREMENT_LAST) { -+ return 0; -+ } -+ -+ min = pci_cycles_to_nano(pci_measurements[trans].min, freq); -+ avg = pci_cycles_to_nano(pci_measurements[trans].avg, freq); -+ max = pci_cycles_to_nano(pci_measurements[trans].max, freq); -+ pci_measurements[trans].max = 0; -+ seq_printf(p, "%u\t%u\t%u\t%s\n", min, avg, max, pci_measurement_name_list[trans]); -+ return 0; -+} -+ -+static void *pci_measurement_start(struct seq_file *f, loff_t *pos) -+{ -+ return (*pos < PCI_MEASUREMENT_LAST) ? pos : NULL; -+} -+ -+static void *pci_measurement_next(struct seq_file *f, void *v, loff_t *pos) -+{ -+ (*pos)++; -+ if (*pos >= PCI_MEASUREMENT_LAST) -+ return NULL; -+ return pos; -+} -+ -+static void pci_measurement_stop(struct seq_file *f, void *v) -+{ -+ /* Nothing to do */ -+} -+ -+static const struct seq_operations pci_measurement_seq_ops = { -+ .start = pci_measurement_start, -+ .next = pci_measurement_next, -+ .stop = pci_measurement_stop, -+ .show = pci_measurement_show, -+}; -+ -+static int pci_measurement_open(struct inode *inode, struct file *filp) -+{ -+ return seq_open(filp, &pci_measurement_seq_ops); -+} -+ -+static const struct file_operations pci_measurement_fops = { -+ .open = pci_measurement_open, -+ .read = seq_read, -+ .llseek = seq_lseek, -+ .release = seq_release, -+}; -+ -+static int __init pci_measurement_init(void) -+{ -+ proc_create("pci_measurements", 0, NULL, &pci_measurement_fops); -+ return 0; -+} -+module_init(pci_measurement_init); -+#endif -+ -+static int ubi32_pci_read_config(struct pci_bus *bus, unsigned int devfn, -+ int where, int size, u32 *value) -+{ -+ u8 cmd; -+ u32 addr; -+ u8 data8; -+ u16 data16; -+ -+ u8 slot = PCI_SLOT(devfn); -+ u8 fn = PCI_FUNC(devfn); -+ -+ if (slot > 1) { -+ return PCIBIOS_DEVICE_NOT_FOUND; -+ } else if (slot == 0) { -+ addr = PCI_DEV0_IDSEL + where; -+ } else { -+ addr = PCI_DEV1_IDSEL + where; -+ } -+ -+ addr += (fn << 8); -+ -+ cmd = PCI_CMD_CFG_READ; -+ if (size == 1) { -+ pci_read_u8(cmd, addr, &data8); -+ *value = (u32)data8; -+ } else if (size == 2) { -+ pci_read_u16(cmd, addr, &data16); -+ *value = (u32)data16; -+ } else { -+ pci_read_u32(cmd, addr, value); -+ } -+ -+ return PCIBIOS_SUCCESSFUL; -+} -+ -+static int ubi32_pci_write_config(struct pci_bus *bus, unsigned int devfn, -+ int where, int size, u32 value) -+{ -+ u8 cmd; -+ u32 addr; -+ u8 slot = PCI_SLOT(devfn); -+ u8 fn = PCI_FUNC(devfn); -+ -+ if (slot > 1) { -+ return PCIBIOS_DEVICE_NOT_FOUND; -+ } else if (slot == 0) { -+ addr = PCI_DEV0_IDSEL + where; -+ } else { -+ addr = PCI_DEV1_IDSEL + where; -+ } -+ -+ addr += (fn << 8); -+ -+ cmd = PCI_CMD_CFG_WRITE; -+ if (size == 1) { -+ pci_write_u8(cmd, addr, (u8)value); -+ } else if (size == 2) { -+ pci_write_u16(cmd, addr, (u16)value); -+ } else { -+ pci_write_u32(cmd, addr, value); -+ } -+ -+ return PCIBIOS_SUCCESSFUL; -+} -+ -+int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size) -+{ -+ return -EIO; -+} -+EXPORT_SYMBOL(pci_set_dma_max_seg_size); -+ -+int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask) -+{ -+ return -EIO; -+} -+EXPORT_SYMBOL(pci_set_dma_seg_boundary); -+ -+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -+{ -+ resource_size_t start = pci_resource_start(dev, bar); -+ resource_size_t len = pci_resource_len(dev, bar); -+ unsigned long flags = pci_resource_flags(dev, bar); -+ -+ if (!len || !start) { -+ return NULL; -+ } -+ -+ if (maxlen && len > maxlen) { -+ len = maxlen; -+ } -+ -+ if (flags & IORESOURCE_IO) { -+ return ioport_map(start, len); -+ } -+ -+ if (flags & IORESOURCE_MEM) { -+ if (flags & IORESOURCE_CACHEABLE) { -+ return ioremap(start, len); -+ } -+ return ioremap_nocache(start, len); -+ } -+ return NULL; -+} -+EXPORT_SYMBOL(pci_iomap); -+ -+void pci_iounmap(struct pci_dev *dev, void __iomem *addr) -+{ -+ if ((unsigned long)addr >= VMALLOC_START && -+ (unsigned long)addr < VMALLOC_END) { -+ iounmap(addr); -+ } -+} -+EXPORT_SYMBOL(pci_iounmap); -+ -+/* -+ * From arch/arm/kernel/bios32.c -+ * -+ * PCI bios-type initialisation for PCI machines -+ * -+ * Bits taken from various places. -+ */ -+static void __init pcibios_init_hw(struct hw_pci *hw) -+{ -+ struct pci_sys_data *sys = NULL; -+ int ret; -+ int nr, busnr; -+ -+ for (nr = busnr = 0; nr < hw->nr_controllers; nr++) { -+ sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL); -+ if (!sys) -+ panic("PCI: unable to allocate sys data!"); -+ -+ sys->hw = hw; -+ sys->busnr = busnr; -+ sys->map_irq = hw->map_irq; -+ sys->resource[0] = &ioport_resource; -+ sys->resource[1] = &iomem_resource; -+ -+ ret = hw->setup(nr, sys); -+ -+ if (ret > 0) { -+ sys->bus = hw->scan(nr, sys); -+ -+ if (!sys->bus) -+ panic("PCI: unable to scan bus!"); -+ -+ busnr = sys->bus->subordinate + 1; -+ -+ list_add(&sys->node, &hw->buses); -+ } else { -+ kfree(sys); -+ if (ret < 0) -+ break; -+ } -+ } -+} -+ -+/* -+ * Swizzle the device pin each time we cross a bridge. -+ * This might update pin and returns the slot number. -+ */ -+static u8 __devinit pcibios_swizzle(struct pci_dev *dev, u8 *pin) -+{ -+ struct pci_sys_data *sys = dev->sysdata; -+ int slot = 0, oldpin = *pin; -+ -+ if (sys->swizzle) -+ slot = sys->swizzle(dev, pin); -+ -+ if (debug_pci) -+ printk("PCI: %s swizzling pin %d => pin %d slot %d\n", -+ pci_name(dev), oldpin, *pin, slot); -+ return slot; -+} -+ -+/* -+ * Map a slot/pin to an IRQ. -+ */ -+static int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -+{ -+ struct pci_sys_data *sys = dev->sysdata; -+ int irq = -1; -+ -+ if (sys->map_irq) -+ irq = sys->map_irq(dev, slot, pin); -+ -+ if (debug_pci) -+ printk("PCI: %s mapping slot %d pin %d => irq %d\n", -+ pci_name(dev), slot, pin, irq); -+ -+ return irq; -+} -+ -+void __init pci_common_init(struct hw_pci *hw) -+{ -+ struct pci_sys_data *sys; -+ -+ INIT_LIST_HEAD(&hw->buses); -+ -+ if (hw->preinit) -+ hw->preinit(); -+ pcibios_init_hw(hw); -+ if (hw->postinit) -+ hw->postinit(); -+ -+ pci_fixup_irqs(pcibios_swizzle, pcibios_map_irq); -+ list_for_each_entry(sys, &hw->buses, node) { -+ struct pci_bus *bus = sys->bus; -+ /* -+ * Size the bridge windows. -+ */ -+ pci_bus_size_bridges(bus); -+ /* -+ * Assign resources. -+ */ -+ pci_bus_assign_resources(bus); -+ -+ /* -+ * Tell drivers about devices found. -+ */ -+ pci_bus_add_devices(bus); -+ } -+} -+ -+char * __init pcibios_setup(char *str) -+{ -+ if (!strcmp(str, "debug")) { -+ debug_pci = 1; -+ return NULL; -+ } -+ return str; -+} -+ -+/* -+ * From arch/i386/kernel/pci-i386.c: -+ * -+ * We need to avoid collisions with `mirrored' VGA ports -+ * and other strange ISA hardware, so we always want the -+ * addresses to be allocated in the 0x000-0x0ff region -+ * modulo 0x400. -+ * -+ * Why? Because some silly external IO cards only decode -+ * the low 10 bits of the IO address. The 0x00-0xff region -+ * is reserved for motherboard devices that decode all 16 -+ * bits, so it's ok to allocate at, say, 0x2800-0x28ff, -+ * but we want to try to avoid allocating at 0x2900-0x2bff -+ * which might be mirrored at 0x0100-0x03ff.. -+ */ -+void pcibios_align_resource(void *data, struct resource *res, -+ resource_size_t size, resource_size_t align) -+{ -+ resource_size_t start = res->start; -+ -+ if (res->flags & IORESOURCE_IO && start & 0x300) -+ start = (start + 0x3ff) & ~0x3ff; -+ -+ res->start = (start + align - 1) & ~(align - 1); -+} -+ -+ -+void __devinit pcibios_update_irq(struct pci_dev *dev, int irq) -+{ -+ if (debug_pci) -+ printk("PCI: Assigning IRQ %02d to %s\n", irq, pci_name(dev)); -+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); -+} -+ -+/* -+ * If the bus contains any of these devices, then we must not turn on -+ * parity checking of any kind. Currently this is CyberPro 20x0 only. -+ */ -+static inline int pdev_bad_for_parity(struct pci_dev *dev) -+{ -+ return (dev->vendor == PCI_VENDOR_ID_INTERG && -+ (dev->device == PCI_DEVICE_ID_INTERG_2000 || -+ dev->device == PCI_DEVICE_ID_INTERG_2010)) || -+ (dev->vendor == PCI_VENDOR_ID_ITE && -+ dev->device == PCI_DEVICE_ID_ITE_8152); -+ -+} -+ -+/* -+ * Adjust the device resources from bus-centric to Linux-centric. -+ */ -+static void __devinit -+pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev) -+{ -+ resource_size_t offset; -+ int i; -+ -+ for (i = 0; i < PCI_NUM_RESOURCES; i++) { -+ if (dev->resource[i].start == 0) -+ continue; -+ if (dev->resource[i].flags & IORESOURCE_MEM) -+ offset = root->mem_offset; -+ else -+ offset = root->io_offset; -+ -+ dev->resource[i].start += offset; -+ dev->resource[i].end += offset; -+ } -+} -+ -+static void __devinit -+pbus_assign_bus_resources(struct pci_bus *bus, struct pci_sys_data *root) -+{ -+ struct pci_dev *dev = bus->self; -+ int i; -+ -+ if (!dev) { -+ /* -+ * Assign root bus resources. -+ */ -+ for (i = 0; i < 3; i++) -+ bus->resource[i] = root->resource[i]; -+ } -+} -+ -+/* -+ * pcibios_fixup_bus - Called after each bus is probed, -+ * but before its children are examined. -+ */ -+void pcibios_fixup_bus(struct pci_bus *bus) -+{ -+ struct pci_sys_data *root = bus->sysdata; -+ struct pci_dev *dev; -+ u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY | -+ PCI_COMMAND_FAST_BACK; -+ -+ pbus_assign_bus_resources(bus, root); -+ -+ /* -+ * Walk the devices on this bus, working out what we can -+ * and can't support. -+ */ -+ list_for_each_entry(dev, &bus->devices, bus_list) { -+ u16 status; -+ -+ pdev_fixup_device_resources(root, dev); -+ -+ pci_read_config_word(dev, PCI_STATUS, &status); -+ -+ /* -+ * If any device on this bus does not support fast back -+ * to back transfers, then the bus as a whole is not able -+ * to support them. Having fast back to back transfers -+ * on saves us one PCI cycle per transaction. -+ */ -+ if (!(status & PCI_STATUS_FAST_BACK)) -+ features &= ~PCI_COMMAND_FAST_BACK; -+ -+ if (pdev_bad_for_parity(dev)) -+ features &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY); -+ -+ switch (dev->class >> 8) { -+ case PCI_CLASS_BRIDGE_PCI: -+ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &status); -+ status |= PCI_BRIDGE_CTL_PARITY | -+ PCI_BRIDGE_CTL_MASTER_ABORT; -+ status &= ~(PCI_BRIDGE_CTL_BUS_RESET | -+ PCI_BRIDGE_CTL_FAST_BACK); -+ pci_write_config_word(dev, PCI_BRIDGE_CONTROL, status); -+ break; -+ -+ case PCI_CLASS_BRIDGE_CARDBUS: -+ pci_read_config_word(dev, PCI_CB_BRIDGE_CONTROL, -+ &status); -+ status |= PCI_CB_BRIDGE_CTL_PARITY | -+ PCI_CB_BRIDGE_CTL_MASTER_ABORT; -+ pci_write_config_word(dev, PCI_CB_BRIDGE_CONTROL, -+ status); -+ break; -+ } -+ } -+ -+ /* -+ * Now walk the devices again, this time setting them up. -+ */ -+ list_for_each_entry(dev, &bus->devices, bus_list) { -+ u16 cmd; -+ -+ pci_read_config_word(dev, PCI_COMMAND, &cmd); -+ cmd |= features; -+ pci_write_config_word(dev, PCI_COMMAND, cmd); -+ -+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, -+ L1_CACHE_BYTES >> 2); -+ } -+ -+ /* -+ * Propagate the flags to the PCI bridge. -+ */ -+ if (bus->self && bus->self->hdr_type == PCI_HEADER_TYPE_BRIDGE) { -+ if (features & PCI_COMMAND_FAST_BACK) -+ bus->bridge_ctl |= PCI_BRIDGE_CTL_FAST_BACK; -+ if (features & PCI_COMMAND_PARITY) -+ bus->bridge_ctl |= PCI_BRIDGE_CTL_PARITY; -+ } -+ -+ /* -+ * Report what we did for this bus -+ */ -+ printk(KERN_INFO "PCI: bus%d: Fast back to back transfers %sabled\n", -+ bus->number, (features & PCI_COMMAND_FAST_BACK) ? "en" : "dis"); -+} -+/* -+ * Convert from Linux-centric to bus-centric addresses for bridge devices. -+ */ -+void -+pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, -+ struct resource *res) -+{ -+ struct pci_sys_data *root = dev->sysdata; -+ unsigned long offset = 0; -+ -+ if (res->flags & IORESOURCE_IO) -+ offset = root->io_offset; -+ if (res->flags & IORESOURCE_MEM) -+ offset = root->mem_offset; -+ -+ region->start = res->start - offset; -+ region->end = res->end - offset; -+} -+ -+void __devinit -+pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, -+ struct pci_bus_region *region) -+{ -+ struct pci_sys_data *root = dev->sysdata; -+ unsigned long offset = 0; -+ -+ if (res->flags & IORESOURCE_IO) -+ offset = root->io_offset; -+ if (res->flags & IORESOURCE_MEM) -+ offset = root->mem_offset; -+ -+ res->start = region->start + offset; -+ res->end = region->end + offset; -+} -+ -+#ifdef CONFIG_HOTPLUG -+EXPORT_SYMBOL(pcibios_fixup_bus); -+EXPORT_SYMBOL(pcibios_resource_to_bus); -+EXPORT_SYMBOL(pcibios_bus_to_resource); -+#endif -+ -+/** -+ * pcibios_enable_device - Enable I/O and memory. -+ * @dev: PCI device to be enabled -+ */ -+int pcibios_enable_device(struct pci_dev *dev, int mask) -+{ -+ u16 cmd, old_cmd; -+ int idx; -+ struct resource *r; -+ -+ pci_read_config_word(dev, PCI_COMMAND, &cmd); -+ old_cmd = cmd; -+ for (idx = 0; idx < 6; idx++) { -+ /* Only set up the requested stuff */ -+ if (!(mask & (1 << idx))) -+ continue; -+ -+ r = dev->resource + idx; -+ if (!r->start && r->end) { -+ printk(KERN_ERR "PCI: Device %s not available because" -+ " of resource collisions\n", pci_name(dev)); -+ return -EINVAL; -+ } -+ if (r->flags & IORESOURCE_IO) -+ cmd |= PCI_COMMAND_IO; -+ if (r->flags & IORESOURCE_MEM) -+ cmd |= PCI_COMMAND_MEMORY; -+ } -+ -+ /* -+ * Bridges (eg, cardbus bridges) need to be fully enabled -+ */ -+ if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE) -+ cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY; -+ -+ if (cmd != old_cmd) { -+ printk("PCI: enabling device %s (%04x -> %04x)\n", -+ pci_name(dev), old_cmd, cmd); -+ pci_write_config_word(dev, PCI_COMMAND, cmd); -+ } -+ return 0; -+} -+ -+ -+struct pci_ops ubi32_pci_ops = { -+ .read = ubi32_pci_read_config, -+ .write = ubi32_pci_write_config, -+}; -+ -+static struct pci_bus *ubi32_pci_scan_bus(int nr, struct pci_sys_data *sys) -+{ -+ return pci_scan_bus(sys->busnr, &ubi32_pci_ops, sys); -+} -+ -+#define UBI32_PCI_MEM_BASE PCI_DEV_REG_BASE -+#define UBI32_PCI_MEM_LEN 0x80000000 -+ -+#define UBI32_PCI_IO_BASE 0x0 -+#define UBI32_PCI_IO_END 0x0 -+ -+static struct resource ubi32_pci_mem = { -+ .name = "PCI memory space", -+ .start = UBI32_PCI_MEM_BASE, -+ .end = UBI32_PCI_MEM_BASE + UBI32_PCI_MEM_LEN - 1, -+ .flags = IORESOURCE_MEM, -+}; -+ -+static struct resource ubi32_pci_io = { -+ .name = "PCI IO space", -+ .start = UBI32_PCI_IO_BASE, -+ .end = UBI32_PCI_IO_END, -+ .flags = IORESOURCE_IO, -+}; -+ -+static int __init ubi32_pci_setup(int nr, struct pci_sys_data *sys) -+{ -+ if (nr > 0) -+ return 0; -+ -+ request_resource(&iomem_resource, &ubi32_pci_mem); -+ request_resource(&ioport_resource, &ubi32_pci_io); -+ -+ sys->resource[0] = &ubi32_pci_io; -+ sys->resource[1] = &ubi32_pci_mem; -+ sys->resource[2] = NULL; -+ -+ return 1; -+} -+ -+static void __init ubi32_pci_preinit(void) -+{ -+} -+ -+static int __init ubi32_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -+{ -+ return pci_node->dn.recvirq; -+} -+ -+struct hw_pci ubi32_pci __initdata = { -+ .nr_controllers = 1, -+ .preinit = ubi32_pci_preinit, -+ .setup = ubi32_pci_setup, -+ .scan = ubi32_pci_scan_bus, -+ .map_irq = ubi32_pci_map_irq, -+}; -+ -+static int __init ubi32_pci_init(void) -+{ -+ pci_node = (struct pci_devnode *)devtree_find_node("pci"); -+ if (pci_node == NULL) { -+ printk(KERN_WARNING "PCI init failed\n"); -+ return -ENOSYS; -+ } -+ pci_common_init(&ubi32_pci); -+ return 0; -+} -+ -+subsys_initcall(ubi32_pci_init); -+ -+/* -+ * workaround for dual PCI card interrupt -+ */ -+#define PCI_COMMON_INT_BIT (1 << 19) -+void ubi32_pci_int_wr(void) -+{ -+ volatile unsigned int pci_int_line; -+ pci_int_line = UBICOM32_IO_PORT(RB)->gpio_in; -+ if (!(pci_int_line & PCI_COMMON_INT_BIT)) -+ { -+ ubicom32_set_interrupt(pci_node->dn.recvirq); -+ } -+} -+EXPORT_SYMBOL(ubi32_pci_int_wr); ---- /dev/null -+++ b/arch/ubicom32/mach-common/ring_tio.c -@@ -0,0 +1,123 @@ -+/* -+ * arch/ubicom32/mach-common/ring_tio.c -+ * Generic initialization for UIO Ubicom32 Ring -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/platform_device.h> -+#include <linux/types.h> -+ -+#include <asm/devtree.h> -+#include <asm/ring_tio.h> -+ -+static const char *ring_tio_driver_name = "uio_ubicom32ring"; -+ -+/* -+ * The number of ring_tio's currently allocated, used for .id -+ */ -+static int __initdata ring_tio_count; -+ -+/* -+ * The maximum number of resources that the ring_tio will have. -+ * Currently 3, a register space, and up to 2 interrupts. -+ */ -+#define RING_TIO_MAX_RESOURCES 3 -+ -+/* -+ * ring_tio_init -+ * Checks the device tree and instantiates the driver if found -+ */ -+void __init ring_tio_init(const char *node_name) -+{ -+ struct platform_device *pdev; -+ struct resource *res; -+ int resource_idx = 0; -+ struct ring_tio_node *ring_node; -+ -+ /* -+ * Check the device tree for the ring_tio -+ */ -+ ring_node = (struct ring_tio_node *)devtree_find_node(node_name); -+ if (!ring_node) { -+ printk(KERN_WARNING "Ring TIO '%s' not found\n", node_name); -+ return; -+ } -+ -+ if (ring_node->version != RING_TIO_NODE_VERSION) { -+ printk(KERN_WARNING "ring_tio not compatible\n"); -+ return; -+ } -+ -+ /* -+ * Dynamically create the platform_device structure and resources -+ */ -+ pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL); -+ if (!pdev) { -+ printk(KERN_WARNING "ring_tio could not alloc pdev\n"); -+ return; -+ } -+ -+ res = kzalloc(sizeof(struct resource) * RING_TIO_MAX_RESOURCES, -+ GFP_KERNEL); -+ if (!res) { -+ kfree(pdev); -+ printk(KERN_WARNING "ring_tio could not alloc res\n"); -+ return; -+ } -+ -+ pdev->name = ring_tio_driver_name; -+ pdev->id = ring_tio_count++; -+ pdev->resource = res; -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ res[resource_idx].start = (u32_t)(ring_node->regs); -+ res[resource_idx].end = (u32_t)(ring_node->regs); -+ res[resource_idx].flags = IORESOURCE_MEM; -+ resource_idx++; -+ -+ if (ring_node->dn.sendirq != 0xFF) { -+ res[resource_idx].start = ring_node->dn.sendirq; -+ res[resource_idx].flags = IORESOURCE_IRQ; -+ resource_idx++; -+ } -+ -+ if (ring_node->dn.recvirq != 0xFF) { -+ res[resource_idx].start = ring_node->dn.recvirq; -+ res[resource_idx].flags = IORESOURCE_IRQ; -+ resource_idx++; -+ } -+ pdev->num_resources = resource_idx; -+ -+ printk(KERN_INFO "RingTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n", -+ ring_tio_count - 1, node_name, ring_node->dn.sendirq, -+ ring_node->dn.recvirq, ring_node->regs, pdev, res); -+ -+ /* -+ * Try to get the device registered -+ */ -+ pdev->dev.platform_data = (void *)node_name; -+ if (platform_device_register(pdev) < 0) { -+ printk(KERN_WARNING "Ring failed to register\n"); -+ kfree(pdev); -+ kfree(res); -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/mach-common/ubi32-gpio.c -@@ -0,0 +1,411 @@ -+/* -+ * arch/ubicom32/mach-common/ubi32-gpio.c -+ * Ubicom gpio driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/errno.h> -+#include <linux/kernel.h> -+#include <linux/io.h> -+#include <linux/gpio.h> -+#include <linux/irq.h> -+#include <linux/version.h> -+ -+#if defined(CONFIG_PROC_FS) -+#include <linux/proc_fs.h> -+#endif -+ -+#include <linux/io.h> -+#include <asm/ip5000.h> -+#include <linux/gpio.h> -+ -+#define UBI_GPIO_CHECK_RANGE 0 /* !0 enables range checking */ -+ -+ -+/* -+ * Each I/O port can be configured to operate in one of several -+ * functional modes. One of these modes is GPIO, which causes the -+ * entire port to function as a GPIO port. Since the various port -+ * registers serve the system with other important functions, such as -+ * ethernet, serial, USB, etc., it isn't advantageous to set any of -+ * the ports to be entirely dedicated for GPIO use. The processor -+ * alternatively allows individual bits of a port to be assigned to be -+ * used as GPIO independently from the overall port function. This -+ * bit-by-bit assignment is selected by setting the corresponding bit -+ * in the port's gpio_mask register. When set, the selected bit is -+ * then enabled as a GPIO. If the corresponding bit is set in the -+ * gpio_ctl register of the port, the bit is configured as a GPIO -+ * output. Otherwise, it is an input. -+ * -+ * NOTE: This driver uses the bit-by-bit GPIO function assignment -+ * exclusively and *never* sets the port function registers to the -+ * GPIO function. -+ * -+ * GPIO is not the main function of any of the I/O ports. The port -+ * bit widths are variable from one port to the next, determined by -+ * the more common I/O functions of the ports. For simplicity, this -+ * driver assumes all the ports are 32 bits wide regardless of the -+ * real bit width of the port. GPIO bits are numbered from zero to -+ * MAX_UBICOM_GPIOS. Within a port, the least significant bit is -+ * numbered bit zero, the most significant is bit 31. Since the ports -+ * are considered logically contiguous, GPIO #32 is the zeroth bit in -+ * port #1, and so on. Due to the hardware definition, there are -+ * large gaps in the GPIO numbers representing real pins. -+ * -+ * NOTE: It is up to the programmer to refer to the processor data -+ * sheet to determine which bits in which ports can be accessed and -+ * used for GPIO. -+ * -+ */ -+ -+ -+/* There are 9 ports, A through I. Not all 32 bits in each -+ * port can be a GPIO, but we pretend they are. Its up to the -+ * programmer to refer to the processor data sheet. -+ */ -+#define MAX_UBICOM_GPIOS (9 * 32) /* ARCH_NR_GPIOS */ -+#define NUM_GPIO_PORTS (gpio_bank(MAX_UBICOM_GPIOS)) -+ -+ -+/* GPIO reservation bit map array */ -+static int reserved_gpio_map[NUM_GPIO_PORTS]; -+ -+ -+/* Array of hardware io_port addresses */ -+static struct ubicom32_io_port *gpio_bank_addr[NUM_GPIO_PORTS] = -+{ -+ UBICOM32_IO_PORT(RA), -+ UBICOM32_IO_PORT(RB), -+ UBICOM32_IO_PORT(RC), -+ UBICOM32_IO_PORT(RD), -+ UBICOM32_IO_PORT(RE), -+ UBICOM32_IO_PORT(RF), -+ UBICOM32_IO_PORT(RG), -+ UBICOM32_IO_PORT(RH), -+ UBICOM32_IO_PORT(RI) -+}; -+ -+ -+struct ubi_gpio_chip { -+ /* -+ * Right now, nothing else lives here. -+ */ -+ struct gpio_chip gpio_chip; -+}; -+ -+ -+#if UBI_GPIO_CHECK_RANGE -+inline int check_gpio(unsigned gpio) -+{ -+ if (gpio >= MAX_UBICOM_GPIOS) -+ return -EINVAL; -+ return 0; -+} -+#else -+#define check_gpio(n) (0) -+#endif -+ -+/* -+ * ubi_gpio_get_port -+ * Get the IO port associated with a certain gpio -+ */ -+struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio) -+{ -+ if (gpio_bank(gpio) > NUM_GPIO_PORTS) { -+ return NULL; -+ } -+ return gpio_bank_addr[gpio_bank(gpio)]; -+} -+ -+/* -+ * ubi_gpio_error() -+ */ -+static void ubi_gpio_error(unsigned gpio) -+{ -+ printk(KERN_ERR "ubicom-gpio: GPIO %d wasn't requested!\n", gpio); -+} -+ -+/* -+ * ubi_port_setup() -+ */ -+static void ubi_port_setup(unsigned gpio, unsigned short usage) -+{ -+ if (!check_gpio(gpio)) { -+ if (usage) { -+ UBICOM32_GPIO_ENABLE(gpio); -+ } else { -+ UBICOM32_GPIO_DISABLE(gpio); -+ } -+ } -+} -+ -+/* -+ * ubi_gpio_request() -+ */ -+static int ubi_gpio_request(struct gpio_chip *chip, unsigned gpio) -+{ -+ unsigned long flags; -+ -+ if (check_gpio(gpio) < 0) -+ return -EINVAL; -+ -+ local_irq_save(flags); -+ -+ if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { -+ printk(KERN_ERR "ubi-gpio: GPIO %d is already reserved!\n", -+ gpio); -+ local_irq_restore(flags); -+ return -EBUSY; -+ } -+ -+ reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio); -+ -+ ubi_port_setup(gpio, 1); -+ -+ local_irq_restore(flags); -+ -+ return 0; -+} -+ -+/* -+ * ubi_gpio_free() -+ */ -+static void ubi_gpio_free(struct gpio_chip *chip, unsigned gpio) -+{ -+ unsigned long flags; -+ -+ if (check_gpio(gpio) < 0) -+ return; -+ -+ local_irq_save(flags); -+ -+ if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { -+ ubi_gpio_error(gpio); -+ local_irq_restore(flags); -+ return; -+ } -+ -+ /* Assert the pin is no longer claimed */ -+ reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); -+ -+ /* Revert port bit to use specified by port->function */ -+ ubi_port_setup(gpio, 0); -+ -+ local_irq_restore(flags); -+} -+ -+/* -+ * ubi_gpio_direction_input() -+ */ -+static int ubi_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) -+{ -+ unsigned long flags; -+ -+ if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { -+ ubi_gpio_error(gpio); -+ return -EINVAL; -+ } -+ -+ local_irq_save(flags); -+ -+ /* Configure pin as gpio */ -+ ubi_port_setup(gpio, 1); -+ -+ /* Assert pin is an input */ -+ UBICOM32_GPIO_SET_PIN_INPUT(gpio); -+ -+ local_irq_restore(flags); -+ -+ return 0; -+} -+ -+ -+/* -+ * ubi_gpio_direction_output() -+ */ -+static int ubi_gpio_direction_output(struct gpio_chip *chip, -+ unsigned gpio, int value) -+{ -+ unsigned long flags; -+ -+ if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { -+ ubi_gpio_error(gpio); -+ return -EINVAL; -+ } -+ -+ local_irq_save(flags); -+ -+ /* Configure pin as gpio and set initial value in gpio_out register -+ * so that when we enable it as an output, it will have the correct -+ * initial value. -+ */ -+ ubi_port_setup(gpio, 1); -+ if (value) { -+ UBICOM32_GPIO_SET_PIN_HIGH(gpio); -+ } else { -+ UBICOM32_GPIO_SET_PIN_LOW(gpio); -+ } -+ -+ /* Enable the pin as an output */ -+ UBICOM32_GPIO_SET_PIN_OUTPUT(gpio); -+ -+ local_irq_restore(flags); -+ -+ return 0; -+} -+ -+ -+/* -+ * ubi_gpio_get_value() -+ */ -+static int ubi_gpio_get_value(struct gpio_chip *chip, unsigned gpio) -+{ -+ return 0 != (gpio_bank_addr[gpio_bank(gpio)]->gpio_in & gpio_bit(gpio)); -+} -+ -+ -+/* -+ * ubi_gpio_set_value() -+ */ -+static void ubi_gpio_set_value(struct gpio_chip *chip, unsigned gpio, -+ int arg) -+{ -+ unsigned long flags; -+ local_irq_save(flags); -+ -+ if (arg) { -+ UBICOM32_GPIO_SET_PIN_HIGH(gpio); -+ } else { -+ UBICOM32_GPIO_SET_PIN_LOW(gpio); -+ } -+ -+ local_irq_restore(flags); -+} -+ -+ -+/* -+ * ubi_gpio_to_irq() -+ */ -+static int ubi_gpio_to_irq(struct gpio_chip *chip, unsigned gpio) -+{ -+ return gpio_to_irq(gpio); -+} -+ -+ -+/* -+ * ubi_gpio_init() -+ */ -+int __init ubi_gpio_init(void) -+{ -+ int k; -+ int status; -+ struct ubi_gpio_chip *chip; -+ struct gpio_chip *gc; -+ -+ printk(KERN_INFO "Ubicom GPIO Controller\n"); -+ -+ chip = kzalloc(sizeof(struct ubi_gpio_chip), GFP_KERNEL); -+ if (chip == NULL) -+ return -ENOMEM; -+ -+ gc = &chip->gpio_chip; -+ gc->request = ubi_gpio_request; -+ gc->free = ubi_gpio_free; -+ gc->to_irq = ubi_gpio_to_irq; -+ gc->direction_input = ubi_gpio_direction_input; -+ gc->direction_output = ubi_gpio_direction_output; -+ gc->get = ubi_gpio_get_value; -+ gc->set = ubi_gpio_set_value; -+ gc->can_sleep = 0; -+ gc->base = 0; -+ gc->ngpio = MAX_UBICOM_GPIOS; /* ARCH_NR_GPIOS - 1 */ -+ gc->label = "ubi_gpio"; -+ -+ status = gpiochip_add(gc); -+ if (status != 0) { -+ kfree(chip); -+ return status; -+ } -+ -+ /* Assert all pins are free */ -+ for (k = 0; k < NUM_GPIO_PORTS; k++) { -+ reserved_gpio_map[k] = 0; -+ } -+ -+ return 0; -+} -+ -+#if defined(CONFIG_PROC_FS) -+/* -+ * ubi_get_gpio_dir() -+ */ -+static int ubi_get_gpio_dir(unsigned gpio) -+{ -+ if (gpio_bank_addr[gpio_bank(gpio)]->gpio_ctl & gpio_bit(gpio)) -+ return 1; -+ else -+ return 0; -+} -+ -+/* -+ * gpio_proc_read() -+ */ -+static int ubi_gpio_proc_read(char *buf, char **start, off_t offset, -+ int len, int *unused_i, void *unused_v) -+{ -+ int c, outlen = 0; -+ -+ for (c = 0; c < MAX_UBICOM_GPIOS; c++) { -+ if (!check_gpio(c) && -+ (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) { -+ len = sprintf(buf, "GPIO_%d:\t\tGPIO %s\n", c, -+ ubi_get_gpio_dir(c) ? "OUTPUT" : "INPUT"); -+ } else { -+ continue; -+ } -+ -+ buf += len; -+ outlen += len; -+ } -+ return outlen; -+} -+ -+/* -+ * ubi_gpio_register_proc() -+ */ -+static __init int ubi_gpio_register_proc(void) -+{ -+ struct proc_dir_entry *proc_gpio; -+ -+ proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL); -+ if (proc_gpio) -+ proc_gpio->read_proc = ubi_gpio_proc_read; -+ -+ return proc_gpio != NULL; -+} -+device_initcall(ubi_gpio_register_proc); -+#endif ---- /dev/null -+++ b/arch/ubicom32/mach-common/ubicom32hid.c -@@ -0,0 +1,557 @@ -+/* -+ * arch/ubicom32/mach-common/ubicom32hid.c -+ * I2C driver for HID coprocessor found on some DPF implementations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/gpio.h> -+#include <linux/delay.h> -+#include <linux/platform_device.h> -+#include <linux/i2c.h> -+#include <linux/backlight.h> -+#include <linux/fb.h> -+#include <linux/input.h> -+#include <linux/input-polldev.h> -+ -+#include <asm/ubicom32hid.h> -+ -+#define DRIVER_NAME "ubicom32hid" -+ -+#ifdef DEBUG -+static int ubicom32hid_debug; -+#endif -+ -+static const struct i2c_device_id ubicom32hid_id[] = { -+ { DRIVER_NAME, }, -+ { } -+}; -+MODULE_DEVICE_TABLE(i2c, ubicom32hid_id); -+ -+/* -+ * Define this to make IR checking strict, in general, it's not needed -+ */ -+#undef UBICOM32HID_STRICT_IR_CHECK -+ -+#define UBICOM32HID_CMD_SET_PWM 0x01 -+#define UBICOM32HID_CMD_SET_BL_EN 0x02 -+#define UBICOM32HID_BL_EN_LOW 0x00 -+#define UBICOM32HID_BL_EN_HIZ 0x01 -+#define UBICOM32HID_BL_EN_HI 0x02 -+#define UBICOM32HID_CMD_FLUSH 0x99 -+#define UBICOM32HID_CMD_RESET 0x99 -+#define UBICOM32HID_CMD_GET_IR_SWITCH 0xC0 -+#define UBICOM32HID_CMD_GET_REVISION 0xfd -+#define UBICOM32HID_CMD_GET_DEVICE_ID 0xfe -+#define UBICOM32HID_CMD_GET_VERSION 0xff -+#define UBICOM32HID_DEVICE_ID 0x49 -+ -+#define UBICOM32HID_MAX_BRIGHTNESS_PWM 255 -+ -+/* -+ * Data structure returned by the HID device -+ */ -+struct ubicom32hid_input_data { -+ uint32_t ircmd; -+ uint8_t sw_state; -+ uint8_t sw_changed; -+}; -+ -+/* -+ * Our private data -+ */ -+struct ubicom32hid_data { -+ /* -+ * Pointer to the platform data structure, we need the settings. -+ */ -+ const struct ubicom32hid_platform_data *pdata; -+ -+ /* -+ * Backlight device -+ */ -+ struct backlight_device *bldev; -+ -+ /* -+ * I2C client, for sending messages to the HID device -+ */ -+ struct i2c_client *client; -+ -+ /* -+ * Current intensity, used for get_intensity. -+ */ -+ int cur_intensity; -+ -+ /* -+ * Input subsystem -+ * We won't register an input subsystem if there are no mappings. -+ */ -+ struct input_polled_dev *poll_dev; -+}; -+ -+ -+/* -+ * ubicom32hid_set_intensity -+ */ -+static int ubicom32hid_set_intensity(struct backlight_device *bd) -+{ -+ struct ubicom32hid_data *ud = -+ (struct ubicom32hid_data *)bl_get_data(bd); -+ int intensity = bd->props.brightness; -+ int reg; -+ u8_t val; -+ int ret; -+ -+ /* -+ * If we're blanked the the intensity doesn't matter. -+ */ -+ if ((bd->props.power != FB_BLANK_UNBLANK) || -+ (bd->props.fb_blank != FB_BLANK_UNBLANK)) { -+ intensity = 0; -+ } -+ -+ /* -+ * Set the brightness based on the type of backlight -+ */ -+ if (ud->pdata->type == UBICOM32HID_BL_TYPE_BINARY) { -+ reg = UBICOM32HID_CMD_SET_BL_EN; -+ if (intensity) { -+ val = ud->pdata->invert -+ ? UBICOM32HID_BL_EN_LOW : UBICOM32HID_BL_EN_HI; -+ } else { -+ val = ud->pdata->invert -+ ? UBICOM32HID_BL_EN_HI : UBICOM32HID_BL_EN_LOW; -+ } -+ } else { -+ reg = UBICOM32HID_CMD_SET_PWM; -+ val = ud->pdata->invert -+ ? (UBICOM32HID_MAX_BRIGHTNESS_PWM - intensity) : -+ intensity; -+ } -+ -+ /* -+ * Send the command -+ */ -+ ret = i2c_smbus_write_byte_data(ud->client, reg, val); -+ if (ret < 0) { -+ dev_warn(&ud->client->dev, "Unable to write backlight err=%d\n", -+ ret); -+ return ret; -+ } -+ -+ ud->cur_intensity = intensity; -+ -+ return 0; -+} -+ -+/* -+ * ubicom32hid_get_intensity -+ * Return the current intensity of the backlight. -+ */ -+static int ubicom32hid_get_intensity(struct backlight_device *bd) -+{ -+ struct ubicom32hid_data *ud = -+ (struct ubicom32hid_data *)bl_get_data(bd); -+ -+ return ud->cur_intensity; -+} -+ -+/* -+ * ubicom32hid_verify_data -+ * Verify the data to see if there is any action to be taken -+ * -+ * Returns 0 if no action is to be taken, non-zero otherwise -+ */ -+static int ubicom32hid_verify_data(struct ubicom32hid_data *ud, -+ struct ubicom32hid_input_data *data) -+{ -+ uint8_t *ircmd = (uint8_t *)&(data->ircmd); -+ -+ /* -+ * ircmd == DEADBEEF means ir queue is empty. Since this is a -+ * meaningful code, that means the rest of the message is most likely -+ * correct, so only process the data if the switch state has changed. -+ */ -+ if (data->ircmd == 0xDEADBEEF) { -+ return data->sw_changed != 0; -+ } -+ -+ /* -+ * We have an ircmd which is not empty: -+ * Data[1] should be the complement of Data[0] -+ */ -+ if (ircmd[0] != (u8_t)~ircmd[1]) { -+ return 0; -+ } -+ -+#ifdef UBICOM32HID_STRICT_IR_CHECK -+ /* -+ * It seems that some remote controls don't follow the NEC protocol -+ * properly, so only do this check if the remote does indeed follow the -+ * spec. Data[3] should be the complement of Data[2] -+ */ -+ if (ircmd[2] == (u8_t)~ircmd[3]) { -+ return 1; -+ } -+ -+ /* -+ * For non-compliant remotes, check the system code according to what -+ * they send. -+ */ -+ if ((ircmd[2] != UBICOM32HID_IR_SYSTEM_CODE_CHECK) || -+ (ircmd[3] != UBICOM32HID_IR_SYSTEM_CODE)) { -+ return 0; -+ } -+#endif -+ -+ /* -+ * Data checks out, process -+ */ -+ return 1; -+} -+ -+/* -+ * ubicom32hid_poll_input -+ * Poll the input from the HID device. -+ */ -+static void ubicom32hid_poll_input(struct input_polled_dev *dev) -+{ -+ struct ubicom32hid_data *ud = (struct ubicom32hid_data *)dev->private; -+ const struct ubicom32hid_platform_data *pdata = ud->pdata; -+ struct ubicom32hid_input_data data; -+ struct input_dev *id = dev->input; -+ int i; -+ int sync_needed = 0; -+ uint8_t cmd; -+ int ret; -+ -+ /* -+ * Flush the queue -+ */ -+ cmd = UBICOM32HID_CMD_FLUSH; -+ ret = i2c_master_send(ud->client, &cmd, 1); -+ if (ret < 0) { -+ return; -+ } -+ -+ ret = i2c_smbus_read_i2c_block_data( -+ ud->client, UBICOM32HID_CMD_GET_IR_SWITCH, 6, (void *)&data); -+ if (ret < 0) { -+ return; -+ } -+ -+ /* -+ * Verify the data to see if there is any action to be taken -+ */ -+ if (!ubicom32hid_verify_data(ud, &data)) { -+ return; -+ } -+ -+#ifdef DEBUG -+ if (ubicom32hid_debug) { -+ printk("Polled ircmd=%8x swstate=%2x swchanged=%2x\n", -+ data.ircmd, data.sw_state, data.sw_changed); -+ } -+#endif -+ -+ /* -+ * Process changed switches -+ */ -+ if (data.sw_changed) { -+ const struct ubicom32hid_button *ub = pdata->buttons; -+ for (i = 0; i < pdata->nbuttons; i++, ub++) { -+ uint8_t mask = (1 << ub->bit); -+ if (!(data.sw_changed & mask)) { -+ continue; -+ } -+ -+ sync_needed = 1; -+ input_event(id, ub->type, ub->code, -+ (data.sw_state & mask) ? 1 : 0); -+ } -+ } -+ if (sync_needed) { -+ input_sync(id); -+ } -+ -+ /* -+ * Process ir codes -+ */ -+ if (data.ircmd != 0xDEADBEEF) { -+ const struct ubicom32hid_ir *ui = pdata->ircodes; -+ for (i = 0; i < pdata->nircodes; i++, ui++) { -+ if (ui->ir_code == data.ircmd) { -+ /* -+ * Simulate a up/down event -+ */ -+ input_event(id, ui->type, ui->code, 1); -+ input_sync(id); -+ input_event(id, ui->type, ui->code, 0); -+ input_sync(id); -+ } -+ } -+ } -+} -+ -+ -+/* -+ * Backlight ops -+ */ -+static struct backlight_ops ubicom32hid_blops = { -+ .get_brightness = ubicom32hid_get_intensity, -+ .update_status = ubicom32hid_set_intensity, -+}; -+ -+/* -+ * ubicom32hid_probe -+ */ -+static int ubicom32hid_probe(struct i2c_client *client, -+ const struct i2c_device_id *id) -+{ -+ struct ubicom32hid_platform_data *pdata; -+ struct ubicom32hid_data *ud; -+ int ret; -+ int i; -+ u8 version[2]; -+ char buf[1]; -+ -+ pdata = client->dev.platform_data; -+ if (pdata == NULL) { -+ return -ENODEV; -+ } -+ -+ /* -+ * See if we even have a device available before allocating memory. -+ * -+ * Hard reset the device -+ */ -+ ret = gpio_request(pdata->gpio_reset, "ubicom32hid-reset"); -+ if (ret < 0) { -+ return ret; -+ } -+ gpio_direction_output(pdata->gpio_reset, pdata->gpio_reset_polarity); -+ udelay(100); -+ gpio_set_value(pdata->gpio_reset, !pdata->gpio_reset_polarity); -+ udelay(100); -+ -+ /* -+ * soft reset the device. It sometimes takes a while to do this. -+ */ -+ for (i = 0; i < 50; i++) { -+ buf[0] = UBICOM32HID_CMD_RESET; -+ ret = i2c_master_send(client, buf, 1); -+ if (ret > 0) { -+ break; -+ } -+ udelay(10000); -+ } -+ if (i == 50) { -+ dev_warn(&client->dev, "Unable to reset device\n"); -+ goto fail; -+ } -+ -+ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_DEVICE_ID); -+ if (ret != UBICOM32HID_DEVICE_ID) { -+ dev_warn(&client->dev, "Incorrect device id %02x\n", buf[0]); -+ ret = -ENODEV; -+ goto fail; -+ } -+ -+ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_VERSION); -+ if (ret < 0) { -+ dev_warn(&client->dev, "Unable to get version\n"); -+ goto fail; -+ } -+ version[0] = ret; -+ -+ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_REVISION); -+ if (ret < 0) { -+ dev_warn(&client->dev, "Unable to get revision\n"); -+ goto fail; -+ } -+ version[1] = ret; -+ -+ /* -+ * Allocate our private data -+ */ -+ ud = kzalloc(sizeof(struct ubicom32hid_data), GFP_KERNEL); -+ if (!ud) { -+ ret = -ENOMEM; -+ goto fail; -+ } -+ ud->pdata = pdata; -+ ud->client = client; -+ -+ /* -+ * Register our backlight device -+ */ -+ ud->bldev = backlight_device_register(DRIVER_NAME, &client->dev, -+ ud, &ubicom32hid_blops); -+ if (IS_ERR(ud->bldev)) { -+ ret = PTR_ERR(ud->bldev); -+ goto fail2; -+ } -+ platform_set_drvdata(client, ud); -+ -+ /* -+ * Start up the backlight with the requested intensity -+ */ -+ ud->bldev->props.power = FB_BLANK_UNBLANK; -+ ud->bldev->props.max_brightness = -+ (pdata->type == UBICOM32HID_BL_TYPE_PWM) ? -+ UBICOM32HID_MAX_BRIGHTNESS_PWM : 1; -+ if (pdata->default_intensity < ud->bldev->props.max_brightness) { -+ ud->bldev->props.brightness = pdata->default_intensity; -+ } else { -+ dev_warn(&client->dev, "Default brightness out of range, " -+ "setting to max\n"); -+ ud->bldev->props.brightness = ud->bldev->props.max_brightness; -+ } -+ -+ ubicom32hid_set_intensity(ud->bldev); -+ -+ /* -+ * Check to see if we have any inputs -+ */ -+ if (!pdata->nbuttons && !pdata->nircodes) { -+ goto done; -+ } -+ -+ /* -+ * We have buttons or codes, we must register an input device -+ */ -+ ud->poll_dev = input_allocate_polled_device(); -+ if (!ud->poll_dev) { -+ ret = -ENOMEM; -+ goto fail3; -+ } -+ -+ /* -+ * Setup the polling to default to 100ms -+ */ -+ ud->poll_dev->poll = ubicom32hid_poll_input; -+ ud->poll_dev->poll_interval = -+ pdata->poll_interval ? pdata->poll_interval : 100; -+ ud->poll_dev->private = ud; -+ -+ ud->poll_dev->input->name = -+ pdata->input_name ? pdata->input_name : "Ubicom32HID"; -+ ud->poll_dev->input->phys = "ubicom32hid/input0"; -+ ud->poll_dev->input->dev.parent = &client->dev; -+ ud->poll_dev->input->id.bustype = BUS_I2C; -+ -+ /* -+ * Set the capabilities by running through the buttons and ir codes -+ */ -+ for (i = 0; i < pdata->nbuttons; i++) { -+ const struct ubicom32hid_button *ub = &pdata->buttons[i]; -+ -+ input_set_capability(ud->poll_dev->input, -+ ub->type ? ub->type : EV_KEY, ub->code); -+ } -+ -+ for (i = 0; i < pdata->nircodes; i++) { -+ const struct ubicom32hid_ir *ui = &pdata->ircodes[i]; -+ -+ input_set_capability(ud->poll_dev->input, -+ ui->type ? ui->type : EV_KEY, ui->code); -+ } -+ -+ ret = input_register_polled_device(ud->poll_dev); -+ if (ret) { -+ goto fail3; -+ } -+ -+done: -+ printk(KERN_INFO DRIVER_NAME ": enabled, version=%02x.%02x\n", -+ version[0], version[1]); -+ -+ return 0; -+ -+fail3: -+ gpio_free(ud->pdata->gpio_reset); -+ backlight_device_unregister(ud->bldev); -+fail2: -+ kfree(ud); -+fail: -+ gpio_free(pdata->gpio_reset); -+ return ret; -+} -+ -+/* -+ * ubicom32hid_remove -+ */ -+static int ubicom32hid_remove(struct i2c_client *client) -+{ -+ struct ubicom32hid_data *ud = -+ (struct ubicom32hid_data *)platform_get_drvdata(client); -+ -+ gpio_free(ud->pdata->gpio_reset); -+ -+ backlight_device_unregister(ud->bldev); -+ -+ if (ud->poll_dev) { -+ input_unregister_polled_device(ud->poll_dev); -+ input_free_polled_device(ud->poll_dev); -+ } -+ -+ platform_set_drvdata(client, NULL); -+ -+ kfree(ud); -+ -+ return 0; -+} -+ -+static struct i2c_driver ubicom32hid_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = ubicom32hid_probe, -+ .remove = __exit_p(ubicom32hid_remove), -+ .id_table = ubicom32hid_id, -+}; -+ -+/* -+ * ubicom32hid_init -+ */ -+static int __init ubicom32hid_init(void) -+{ -+ return i2c_add_driver(&ubicom32hid_driver); -+} -+module_init(ubicom32hid_init); -+ -+/* -+ * ubicom32hid_exit -+ */ -+static void __exit ubicom32hid_exit(void) -+{ -+ i2c_del_driver(&ubicom32hid_driver); -+} -+module_exit(ubicom32hid_exit); -+ -+MODULE_AUTHOR("Pat Tjin <@ubicom.com>") -+MODULE_DESCRIPTION("Ubicom HID driver"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/arch/ubicom32/mach-common/ubicom32input.c -@@ -0,0 +1,265 @@ -+/* -+ * arch/ubicom32/mach-common/ubicom32input.c -+ * Ubicom32 Input driver -+ * -+ * based on gpio-keys -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ * -+ * -+ * TODO: add groups for inputs which can be sampled together (i.e. I2C) -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/input.h> -+#include <linux/input-polldev.h> -+#include <linux/delay.h> -+#include <linux/gpio.h> -+ -+#include <asm/ubicom32input.h> -+ -+struct ubicom32input_data { -+ struct ubicom32input_platform_data *pdata; -+ -+ struct input_polled_dev *poll_dev; -+ -+ /* -+ * collection of previous states for buttons -+ */ -+ u8 prev_state[0]; -+}; -+ -+/* -+ * ubicom32input_poll -+ */ -+static void ubicom32input_poll(struct input_polled_dev *dev) -+{ -+ struct ubicom32input_data *ud = -+ (struct ubicom32input_data *)dev->private; -+ struct ubicom32input_platform_data *pdata = ud->pdata; -+ struct input_dev *id = dev->input; -+ int i; -+ int sync_needed = 0; -+ -+ for (i = 0; i < pdata->nbuttons; i++) { -+ const struct ubicom32input_button *ub = &pdata->buttons[i]; -+ int state = 0; -+ -+ int val = gpio_get_value(ub->gpio); -+ -+ /* -+ * Check to see if the state changed from the last time we -+ * looked -+ */ -+ if (val == ud->prev_state[i]) { -+ continue; -+ } -+ -+ /* -+ * The state has changed, determine if we are "up" or "down" -+ */ -+ ud->prev_state[i] = val; -+ -+ if ((!val && ub->active_low) || (val && !ub->active_low)) { -+ state = 1; -+ } -+ -+ input_event(id, ub->type, ub->code, state); -+ sync_needed = 1; -+ } -+ -+ if (sync_needed) { -+ input_sync(id); -+ } -+} -+ -+/* -+ * ubicom32input_probe -+ */ -+static int __devinit ubicom32input_probe(struct platform_device *pdev) -+{ -+ int i; -+ struct ubicom32input_data *ud; -+ struct input_polled_dev *poll_dev; -+ struct input_dev *input_dev; -+ struct ubicom32input_platform_data *pdata; -+ int ret; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) { -+ return -EINVAL; -+ } -+ -+ ud = kzalloc(sizeof(struct ubicom32input_data) + -+ pdata->nbuttons, GFP_KERNEL); -+ if (!ud) { -+ return -ENOMEM; -+ } -+ ud->pdata = pdata; -+ -+ poll_dev = input_allocate_polled_device(); -+ if (!poll_dev) { -+ ret = -ENOMEM; -+ goto fail; -+ } -+ -+ platform_set_drvdata(pdev, ud); -+ -+ ud->poll_dev = poll_dev; -+ poll_dev->private = ud; -+ poll_dev->poll = ubicom32input_poll; -+ -+ /* -+ * Set the poll interval requested, default to 50 msec -+ */ -+ if (pdata->poll_interval) { -+ poll_dev->poll_interval = pdata->poll_interval; -+ } else { -+ poll_dev->poll_interval = 50; -+ } -+ -+ /* -+ * Setup the input device -+ */ -+ input_dev = poll_dev->input; -+ input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input"; -+ input_dev->phys = "ubicom32input/input0"; -+ input_dev->dev.parent = &pdev->dev; -+ input_dev->id.bustype = BUS_HOST; -+ -+ /* -+ * Reserve the GPIOs -+ */ -+ for (i = 0; i < pdata->nbuttons; i++) { -+ const struct ubicom32input_button *ub = &pdata->buttons[i]; -+ -+ ret = gpio_request(ub->gpio, -+ ub->desc ? ub->desc : "ubicom32input"); -+ if (ret < 0) { -+ pr_err("ubicom32input: failed to request " -+ "GPIO %d ret=%d\n", ub->gpio, ret); -+ goto fail2; -+ } -+ -+ ret = gpio_direction_input(ub->gpio); -+ if (ret < 0) { -+ pr_err("ubicom32input: failed to set " -+ "GPIO %d to input ret=%d\n", ub->gpio, ret); -+ goto fail2; -+ } -+ -+ /* -+ * Set the previous state to the non-active stae -+ */ -+ ud->prev_state[i] = ub->active_low; -+ -+ input_set_capability(input_dev, -+ ub->type ? ub->type : EV_KEY, ub->code); -+ } -+ -+ /* -+ * Register -+ */ -+ ret = input_register_polled_device(ud->poll_dev); -+ if (ret) { -+ goto fail2; -+ } -+ -+ return 0; -+ -+fail2: -+ /* -+ * release the GPIOs we have already requested. -+ */ -+ while (--i >= 0) { -+ gpio_free(pdata->buttons[i].gpio); -+ } -+ -+fail: -+ printk(KERN_ERR "Ubicom32Input: Failed to register driver %d", ret); -+ platform_set_drvdata(pdev, NULL); -+ input_free_polled_device(poll_dev); -+ kfree(ud); -+ return ret; -+} -+ -+/* -+ * ubicom32input_remove -+ */ -+static int __devexit ubicom32input_remove(struct platform_device *dev) -+{ -+ struct ubicom32input_data *ud = -+ (struct ubicom32input_data *)platform_get_drvdata(dev); -+ int i; -+ -+ /* -+ * Free the GPIOs -+ */ -+ for (i = 0; i < ud->pdata->nbuttons; i++) { -+ gpio_free(ud->pdata->buttons[i].gpio); -+ } -+ -+ platform_set_drvdata(dev, NULL); -+ input_unregister_polled_device(ud->poll_dev); -+ input_free_polled_device(ud->poll_dev); -+ -+ kfree(ud); -+ -+ return 0; -+} -+ -+static struct platform_driver ubicom32input_driver = { -+ .driver = { -+ .name = "ubicom32input", -+ .owner = THIS_MODULE, -+ }, -+ .probe = ubicom32input_probe, -+ .remove = __devexit_p(ubicom32input_remove), -+}; -+ -+/* -+ * ubicom32input_init -+ */ -+static int __devinit ubicom32input_init(void) -+{ -+ return platform_driver_register(&ubicom32input_driver); -+} -+ -+/* -+ * ubicom32input_exit -+ */ -+static void __exit ubicom32input_exit(void) -+{ -+ platform_driver_unregister(&ubicom32input_driver); -+} -+ -+module_init(ubicom32input_init); -+module_exit(ubicom32input_exit); -+ -+MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom32 Input Driver"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS("platform:ubicom32-input"); ---- /dev/null -+++ b/arch/ubicom32/mach-common/ubicom32input_i2c.c -@@ -0,0 +1,325 @@ -+/* -+ * arch/ubicom32/mach-common/ubicom32input_i2c.c -+ * Ubicom32 Input driver for I2C -+ * Supports PCA953x and family -+ * -+ * We hog the I2C device, turning it all to input. -+ * -+ * Based on gpio-keys, pca953x -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/input.h> -+#include <linux/input-polldev.h> -+#include <linux/i2c.h> -+ -+#include <asm/ubicom32input_i2c.h> -+ -+#define UBICOM32INPUT_I2C_REG_INPUT 0 -+#define UBICOM32INPUT_I2C_REG_OUTPUT 1 -+#define UBICOM32INPUT_I2C_REG_INVERT 2 -+#define UBICOM32INPUT_I2C_REG_DIRECTION 3 -+ -+static const struct i2c_device_id ubicom32input_i2c_id[] = { -+ { "ubicom32in_pca9534", 8, }, -+ { "ubicom32in_pca9535", 16, }, -+ { "ubicom32in_pca9536", 4, }, -+ { "ubicom32in_pca9537", 4, }, -+ { "ubicom32in_pca9538", 8, }, -+ { "ubicom32in_pca9539", 16, }, -+ { "ubicom32in_pca9554", 8, }, -+ { "ubicom32in_pca9555", 16, }, -+ { "ubicom32in_pca9557", 8, }, -+ { "ubicom32in_max7310", 8, }, -+ { } -+}; -+MODULE_DEVICE_TABLE(i2c, ubicom32input_i2c_id); -+ -+struct ubicom32input_i2c_data { -+ struct ubicom32input_i2c_platform_data *pdata; -+ -+ struct i2c_client *client; -+ -+ struct input_polled_dev *poll_dev; -+ -+ /* -+ * collection of previous states for buttons -+ */ -+ uint16_t prev_state; -+ -+ uint8_t ngpios; -+}; -+ -+/* -+ * ubicom32input_i2c_write_reg -+ * writes a register to the I2C device. -+ */ -+static int ubicom32input_i2c_write_reg(struct ubicom32input_i2c_data *ud, -+ int reg, uint16_t val) -+{ -+ int ret; -+ -+ if (ud->ngpios <= 8) { -+ ret = i2c_smbus_write_byte_data(ud->client, reg, val); -+ } else { -+ ret = i2c_smbus_write_word_data(ud->client, reg << 1, val); -+ } -+ -+ if (ret < 0) { -+ return ret; -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubicom32input_i2c_read_reg -+ * reads a register from the I2C device. -+ */ -+static int ubicom32input_i2c_read_reg(struct ubicom32input_i2c_data *ud, -+ int reg, uint16_t *val) -+{ -+ int ret; -+ -+ if (ud->ngpios <= 8) { -+ ret = i2c_smbus_read_byte_data(ud->client, reg); -+ } else { -+ ret = i2c_smbus_read_word_data(ud->client, reg); -+ } -+ -+ if (ret < 0) { -+ return ret; -+ } -+ -+ *val = (uint16_t)ret; -+ -+ return 0; -+} -+ -+/* -+ * ubicom32input_i2c_poll -+ */ -+static void ubicom32input_i2c_poll(struct input_polled_dev *dev) -+{ -+ struct ubicom32input_i2c_data *ud = -+ (struct ubicom32input_i2c_data *)dev->private; -+ struct ubicom32input_i2c_platform_data *pdata = ud->pdata; -+ struct input_dev *id = dev->input; -+ int i; -+ int sync_needed = 0; -+ uint16_t val; -+ uint16_t change_mask; -+ -+ /* -+ * Try to get the input status, if we fail, bail out, maybe we can do it -+ * next time. -+ */ -+ if (ubicom32input_i2c_read_reg(ud, UBICOM32INPUT_I2C_REG_INPUT, &val)) { -+ return; -+ } -+ -+ /* -+ * see if anything changed by using XOR -+ */ -+ change_mask = ud->prev_state ^ val; -+ ud->prev_state = val; -+ -+ for (i = 0; i < pdata->nbuttons; i++) { -+ const struct ubicom32input_i2c_button *ub = &pdata->buttons[i]; -+ uint16_t mask = 1 << ub->bit; -+ int state = val & mask; -+ -+ /* -+ * Check to see if the state changed from the last time we -+ * looked -+ */ -+ if (!(change_mask & mask)) { -+ continue; -+ } -+ input_event(id, ub->type, ub->code, state); -+ sync_needed = 1; -+ } -+ -+ if (sync_needed) { -+ input_sync(id); -+ } -+} -+ -+/* -+ * ubicom32input_i2c_probe -+ */ -+static int __devinit ubicom32input_i2c_probe(struct i2c_client *client, -+ const struct i2c_device_id *id) -+{ -+ int i; -+ struct ubicom32input_i2c_data *ud; -+ struct input_polled_dev *poll_dev; -+ struct input_dev *input_dev; -+ struct ubicom32input_i2c_platform_data *pdata; -+ int ret; -+ uint16_t invert_mask = 0; -+ -+ pdata = client->dev.platform_data; -+ if (!pdata) { -+ return -EINVAL; -+ } -+ -+ ud = kzalloc(sizeof(struct ubicom32input_i2c_data), GFP_KERNEL); -+ if (!ud) { -+ return -ENOMEM; -+ } -+ ud->pdata = pdata; -+ ud->client = client; -+ ud->ngpios = id->driver_data; -+ -+ poll_dev = input_allocate_polled_device(); -+ if (!poll_dev) { -+ ret = -ENOMEM; -+ goto fail; -+ } -+ -+ ud->poll_dev = poll_dev; -+ poll_dev->private = ud; -+ poll_dev->poll = ubicom32input_i2c_poll; -+ -+ /* -+ * Set the poll interval requested, default to 100 msec -+ */ -+ if (pdata->poll_interval) { -+ poll_dev->poll_interval = pdata->poll_interval; -+ } else { -+ poll_dev->poll_interval = 100; -+ } -+ -+ /* -+ * Setup the input device -+ */ -+ input_dev = poll_dev->input; -+ input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input I2C"; -+ input_dev->phys = "ubicom32input_i2c/input0"; -+ input_dev->dev.parent = &client->dev; -+ input_dev->id.bustype = BUS_I2C; -+ -+ /* -+ * Set the capabilities -+ */ -+ for (i = 0; i < pdata->nbuttons; i++) { -+ const struct ubicom32input_i2c_button *ub = &pdata->buttons[i]; -+ -+ if (ub->active_low) { -+ invert_mask |= (1 << ub->bit); -+ } -+ -+ input_set_capability(input_dev, -+ ub->type ? ub->type : EV_KEY, ub->code); -+ } -+ -+ /* -+ * Setup the device (all inputs) -+ */ -+ ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_DIRECTION, -+ 0xFFFF); -+ if (ret < 0) { -+ goto fail; -+ } -+ -+ ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_INVERT, -+ invert_mask); -+ if (ret < 0) { -+ goto fail; -+ } -+ -+ /* -+ * Register -+ */ -+ ret = input_register_polled_device(ud->poll_dev); -+ if (ret) { -+ goto fail; -+ } -+ -+ i2c_set_clientdata(client, ud); -+ -+ return 0; -+ -+fail: -+ printk(KERN_ERR "ubicom32input_i2c: Failed to register driver %d\n", -+ ret); -+ input_free_polled_device(poll_dev); -+ kfree(ud); -+ return ret; -+} -+ -+/* -+ * ubicom32input_i2c_remove -+ */ -+static int __devexit ubicom32input_i2c_remove(struct i2c_client *client) -+{ -+ struct ubicom32input_i2c_data *ud = -+ (struct ubicom32input_i2c_data *)i2c_get_clientdata(client); -+ -+ i2c_set_clientdata(client, NULL); -+ input_unregister_polled_device(ud->poll_dev); -+ input_free_polled_device(ud->poll_dev); -+ -+ kfree(ud); -+ -+ return 0; -+} -+ -+static struct i2c_driver ubicom32input_i2c_driver = { -+ .driver = { -+ .name = "ubicom32input_i2c", -+ .owner = THIS_MODULE, -+ }, -+ .remove = __devexit_p(ubicom32input_i2c_remove), -+ .id_table = ubicom32input_i2c_id, -+ .probe = ubicom32input_i2c_probe, -+}; -+ -+/* -+ * ubicom32input_i2c_init -+ */ -+static int __devinit ubicom32input_i2c_init(void) -+{ -+ return i2c_add_driver(&ubicom32input_i2c_driver); -+} -+ -+/* -+ * ubicom32input_i2c_exit -+ */ -+static void __exit ubicom32input_i2c_exit(void) -+{ -+ i2c_del_driver(&ubicom32input_i2c_driver); -+} -+ -+module_init(ubicom32input_i2c_init); -+module_exit(ubicom32input_i2c_exit); -+ -+MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom32 Input Driver I2C"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS("platform:ubicom32-input"); ---- /dev/null -+++ b/arch/ubicom32/mach-common/usb.c -@@ -0,0 +1,133 @@ -+/* -+ * arch/ubicom32/mach-common/ip5k_usb.c -+ * Ubicom32 architecture usb support. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com> -+ * Author: Kevin Hilman -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can -+ * redistribute it and/or modify it under the terms of the GNU General -+ * Public License as published by the Free Software Foundation, either -+ * version 2 of the License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. -+ * See the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/types.h> -+#include <linux/errno.h> -+#include <linux/delay.h> -+#include <linux/platform_device.h> -+#include <linux/dma-mapping.h> -+#include <linux/usb/musb.h> -+#include <asm/devtree.h> -+#include <asm/ip5000.h> -+#include "usb_tio.h" -+ -+struct usbtionode *unode = NULL; -+ -+static struct resource usb_resources[] = { -+ [0] = { -+ .start = RJ + 0x800, -+ .end = RJ + 0x1000, -+ .flags = IORESOURCE_MEM, -+ }, -+ [1] = { /* general IRQ */ -+ .start = 1, /* this is a dummy value, the real irq number is passed from kernel_setup_param */ -+ .flags = IORESOURCE_IRQ, -+ }, -+}; -+ -+ -+static struct musb_hdrc_eps_bits musb_eps[] = { -+ { "ep1_tx", 4, }, -+ { "ep1_rx", 4, }, -+ { "ep2_tx", 10, }, -+ { "ep2_rx", 10, }, -+ { "ep3_tx", 9, }, -+ { "ep3_rx", 9, }, -+ { "ep4_tx", 9, }, -+ { "ep4_rx", 9, }, -+ { "ep5_tx", 6, }, -+ { "ep5_rx", 6, }, -+}; -+ -+static struct musb_hdrc_config musb_config = { -+ .multipoint = true, -+ .dyn_fifo = false, -+ .soft_con = true, -+ .dma = false, -+ -+ .num_eps = 6, -+ .dma_channels = 0, -+ .ram_bits = 0, -+ .eps_bits = musb_eps, -+}; -+ -+static struct musb_hdrc_platform_data usb_data = { -+#ifdef CONFIG_USB_MUSB_OTG -+ .mode = MUSB_OTG, -+#else -+#ifdef CONFIG_USB_MUSB_HDRC_HCD -+ .mode = MUSB_HOST, -+#else -+#ifdef CONFIG_USB_GADGET_MUSB_HDRC -+ .mode = MUSB_PERIPHERAL, -+#endif -+#endif -+#endif -+ .clock = NULL, -+ .set_clock = NULL, -+ .config = &musb_config, -+}; -+ -+static struct platform_device musb_device = { -+ .name = "musb_hdrc", -+ .id = 0, -+ .dev = { -+ .platform_data = &usb_data, -+ .dma_mask = NULL, -+ .coherent_dma_mask = 0, -+ }, -+ .resource = usb_resources, -+ .num_resources = ARRAY_SIZE(usb_resources), -+}; -+ -+struct usbtio_node *usb_node = NULL; -+void ubi32_usb_init(void) -+{ -+ /* -+ * See if the usbtio is in the device tree. -+ */ -+ usb_node = (struct usbtio_node *)devtree_find_node("usbtio"); -+ if (!usb_node) { -+ printk(KERN_WARNING "usb init failed\n"); -+ return; -+ } -+ -+ usb_resources[1].start = usb_node->dn.recvirq; -+ if (platform_device_register(&musb_device) < 0) { -+ printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n"); -+ return; -+ } -+} -+ -+void ubi32_usb_int_clr(void) -+{ -+ UBICOM32_IO_PORT(RJ)->int_clr = (1 << 3); -+} -+ ---- /dev/null -+++ b/arch/ubicom32/mach-common/usb_tio.c -@@ -0,0 +1,356 @@ -+/* -+ * arch/ubicom32/mach-common/usb_tio.c -+ * Linux side Ubicom USB TIO driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/spinlock.h> -+#include <linux/slab.h> -+#include <asm/devtree.h> -+#include "usb_tio.h" -+ -+#ifdef CONFIG_SMP -+static DEFINE_SPINLOCK(tio_lock); -+#define USB_TIO_LOCK(lock, flag) spin_lock_irqsave(lock, flag) -+#define USB_TIO_UNLOCK(lock, flag) spin_unlock_irqrestore(lock, flag) -+#define USB_TIO_LOCK_ISLOCKED(lock) spin_try_lock(lock) -+#else -+#define USB_TIO_LOCK(lock, flag) local_irq_save(flag) -+#define USB_TIO_UNLOCK(lock, flag) local_irq_restore(flag) -+#endif -+ -+spinlock_t usb_tio_lock; -+ -+/* -+ * usb_tio_set_hrt_interrupt() -+ */ -+static inline void usb_tio_set_hrt_interrupt(void) -+{ -+ ubicom32_set_interrupt(usb_node->dn.sendirq); -+} -+ -+static inline void usb_tio_wait_hrt(void) -+{ -+ while (unlikely(usb_node->pdesc)); -+} -+ -+#if defined(USB_TIO_DEBUG) -+static void usb_tio_request_verify_magic(volatile struct usb_tio_request *req) -+{ -+ BUG_ON(req->magic != USB_TIO_REQUEST_MAGIC2); -+} -+ -+static void usb_tio_request_clear_magic(volatile struct usb_tio_request *req) -+{ -+ req->magic = 0; -+} -+#endif -+ -+static void usb_tio_request_set_magic(volatile struct usb_tio_request *req) -+{ -+ req->magic = USB_TIO_REQUEST_MAGIC1; -+} -+ -+/* -+ * usb_tio_commit_request() -+ */ -+static inline void usb_tio_commit_request(volatile struct usb_tio_request *request) -+{ -+ wmb(); -+ usb_node->pdesc = request; -+ -+ /* -+ * next thing to do is alway checking if (usb_node->pdesc == NULL) -+ * to see if the request is done, so add a mb() here -+ */ -+ mb(); -+ usb_tio_set_hrt_interrupt(); -+} -+ -+/* -+ * usb_tio_read_u16() -+ * Synchronously read 16 bits. -+ */ -+u8_t usb_tio_read_u16(u32_t address, u16_t *data) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ /* -+ * Fill in the request. -+ */ -+ tio_req->address = address; -+ tio_req->cmd = USB_TIO_READ16_SYNC; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ usb_tio_commit_request(tio_req); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ usb_tio_wait_hrt(); -+ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req); -+ *data = (u16_t)tio_req->data; -+ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_read_u8() -+ * Synchronously read 16 bits. -+ */ -+u8_t usb_tio_read_u8(u32_t address, u8_t *data) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ /* -+ * Fill in the request. -+ */ -+ tio_req->address = address; -+ tio_req->cmd = USB_TIO_READ8_SYNC; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ usb_tio_wait_hrt(); -+ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req); -+ *data = (u8_t)tio_req->data; -+ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_write_u16() -+ * Asynchronously write 16 bits. -+ */ -+u8_t usb_tio_write_u16(u32_t address, u16_t data) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ /* -+ * Wait for any previous write or pending read to complete. -+ */ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ tio_req->address = address; -+ tio_req->data = data; -+ tio_req->cmd = USB_TIO_WRITE16_ASYNC; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_write_u8() -+ * Asynchronously write 8 bits. -+ */ -+u8_t usb_tio_write_u8(u32_t address, u8_t data) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ /* -+ * Wait for any previous write or pending read to complete. -+ */ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ tio_req->address = address; -+ tio_req->data = data; -+ tio_req->cmd = USB_TIO_WRITE8_ASYNC; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_read_fifo() -+ * Synchronously read FIFO. -+ */ -+u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ /* -+ * Wait for any previous request to complete and then make this request. -+ */ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ /* -+ * Fill in the request. -+ */ -+ tio_req->address = address; -+ tio_req->cmd = USB_TIO_READ_FIFO_SYNC; -+ tio_req->buffer = buffer; -+ tio_req->transfer_length = bytes; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ usb_tio_wait_hrt(); -+ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req); -+ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_write_fifo() -+ * Synchronously write 32 bits. -+ */ -+u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ tio_req->address = address; -+ tio_req->buffer = buffer; -+ tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC; -+ tio_req->transfer_length = bytes; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ -+ /* -+ * Wait for the result to show up. -+ */ -+ usb_tio_wait_hrt(); -+ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req); -+ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_write_fifo_async() -+ * Asynchronously write 32 bits. -+ */ -+u8_t usb_tio_write_fifo_async(u32_t address, u32_t buffer, u32_t bytes) -+{ -+ volatile struct usb_tio_request *tio_req = &usb_node->request; -+ unsigned long flag; -+ -+ USB_TIO_LOCK(&tio_lock, flag); -+ usb_tio_wait_hrt(); -+ -+ tio_req->address = address; -+ -+ /* -+ * Is it necessary to make a local copy of the buffer? Any chance the URB is aborted before TIO finished the FIFO write? -+ */ -+ tio_req->buffer = buffer; -+ tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC; -+ tio_req->transfer_length = bytes; -+ USB_TIO_REQUEST_SET_MAGIC(tio_req); -+ /* -+ * commit the request -+ */ -+ usb_tio_commit_request(tio_req); -+ USB_TIO_UNLOCK(&tio_lock, flag); -+ return USB_TIO_OK; -+} -+ -+/* -+ * usb_tio_read_int_status() -+ * read and clear the interrupt status registers -+ */ -+void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx) -+{ -+ -+ /* -+ * clear the interrupt must be syncronized with the TIO thread to prevent the racing condiiton -+ * that TIO thread try to set it at same time -+ */ -+ asm volatile ( -+ "1: bset (%0), (%0), #0 \n\t" \ -+ " jmpne.f 1b \n\t" \ -+ : -+ : "a" (&usb_node->usb_vp_control) -+ : "memory", "cc" -+ ); -+ -+ *int_usb = usb_node->usb_vp_hw_int_usb; -+ *int_tx = cpu_to_le16(usb_node->usb_vp_hw_int_tx); -+ *int_rx = cpu_to_le16(usb_node->usb_vp_hw_int_rx); -+ -+ //printk(KERN_INFO "int read %x, %x, %x\n", *int_usb, *int_tx, *int_rx); -+ -+ /* -+ * The interrupt status register is read-clean, so clear it now -+ */ -+ usb_node->usb_vp_hw_int_usb = 0; -+ usb_node->usb_vp_hw_int_tx = 0; -+ usb_node->usb_vp_hw_int_rx = 0; -+ -+ /* -+ * release the lock bit -+ */ -+ usb_node->usb_vp_control &= 0xfffe; -+} ---- /dev/null -+++ b/arch/ubicom32/mach-common/usb_tio.h -@@ -0,0 +1,111 @@ -+/* -+ * arch/ubicom32/mach-common/usb_tio.h -+ * Definitions for usb_tio.c -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/version.h> -+#include <linux/kernel.h> -+#include <linux/types.h> -+#include <linux/errno.h> -+#include <linux/err.h> -+#include <asm/devtree.h> -+#include <asm/ip5000.h> -+ -+#ifndef _USB_TIO_H -+#define _USB_TIO_H -+ -+#undef USB_TIO_DEBUG -+ -+#define USB_TIO_REQUEST_MAGIC1 0x2307 -+#define USB_TIO_REQUEST_MAGIC2 0x0789 -+#if defined(USB_TIO_DEBUG) -+#define USB_TIO_REQUEST_VERIFY_MAGIC(req) usb_tio_request_verify_magic(req) -+#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req) -+#define USB_TIO_REQUEST_CLEAR_MAGIC(req) usb_tio_request_clear_magic(req) -+#else -+#define USB_TIO_REQUEST_VERIFY_MAGIC(req) -+#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req) -+#define USB_TIO_REQUEST_CLEAR_MAGIC(req) -+#endif -+ -+enum USB_TIO_status { -+ USB_TIO_OK, -+ USB_TIO_ERROR, -+ USB_TIO_ERROR_COMMIT, -+}; -+ -+enum USB_TIO_cmds { -+ USB_TIO_READ16_SYNC, -+ USB_TIO_READ8_SYNC, -+ USB_TIO_READ_FIFO_SYNC, -+ -+ USB_TIO_WRITE16_ASYNC, -+ USB_TIO_WRITE8_ASYNC, -+ USB_TIO_WRITE_FIFO_ASYNC, -+ -+ USB_TIO_WRITE16_SYNC, -+ USB_TIO_WRITE8_SYNC, -+ USB_TIO_WRITE_FIFO_SYNC, -+ -+}; -+ -+enum USB_TIO_state { -+ USB_TIO_NORMAL, -+ USB_TIO_DMA_SETUP, -+}; -+ -+struct usb_tio_request { -+ volatile u32_t address; -+ union { -+ volatile u32_t data; -+ volatile u32_t buffer; -+ }; -+ volatile u16_t cmd; -+ const volatile u16_t status; -+ volatile u32_t transfer_length; -+ volatile u32_t thread_mask; -+ volatile u16_t magic; -+}; -+ -+struct usbtio_node { -+ struct devtree_node dn; -+ volatile struct usb_tio_request * volatile pdesc; -+ struct usb_tio_request request; -+ volatile u32_t usb_vp_config; -+ volatile u32_t usb_vp_control; -+ const volatile u32_t usb_vp_status; -+ volatile u16_t usb_vp_hw_int_tx; -+ volatile u16_t usb_vp_hw_int_rx; -+ volatile u8_t usb_vp_hw_int_usb; -+ volatile u8_t usb_vp_hw_int_mask_usb; -+ volatile u16_t usb_vp_hw_int_mask_tx; -+ volatile u16_t usb_vp_hw_int_mask_rx; -+ -+}; -+ -+extern struct usbtio_node *usb_node; -+extern void ubi32_usb_init(void); -+#endif ---- /dev/null -+++ b/arch/ubicom32/mach-common/vdc_tio.c -@@ -0,0 +1,111 @@ -+/* -+ * arch/ubicom32/mach-common/vdc_tio.c -+ * Generic initialization for VDC -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/platform_device.h> -+#include <linux/types.h> -+ -+#include <asm/devtree.h> -+#include <asm/vdc_tio.h> -+ -+/* -+ * Resources that this driver uses -+ */ -+static struct resource vdc_tio_resources[] = { -+ /* -+ * Send IRQ -+ */ -+ [0] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Receive IRQ (optional) -+ */ -+ [1] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Memory Mapped Registers -+ */ -+ [2] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+/* -+ * The platform_device structure which is passed to the driver -+ */ -+static struct platform_device vdc_tio_platform_device = { -+ .name = "ubicom32fb", -+ .id = -1, -+ .resource = vdc_tio_resources, -+ .num_resources = ARRAY_SIZE(vdc_tio_resources), -+}; -+ -+/* -+ * vdc_tio_init -+ * Checks the device tree and instantiates the driver if found -+ */ -+void __init vdc_tio_init(void) -+{ -+ /* -+ * Check the device tree for the vdc_tio -+ */ -+ struct vdc_tio_node *vdc_node = -+ (struct vdc_tio_node *)devtree_find_node("vdctio"); -+ if (!vdc_node) { -+ printk(KERN_WARNING "No vdc_tio found\n"); -+ return; -+ } -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ vdc_tio_resources[0].start = vdc_node->dn.sendirq; -+ vdc_tio_resources[1].start = vdc_node->dn.recvirq; -+ vdc_tio_resources[2].start = (u32_t)vdc_node->regs; -+ vdc_tio_resources[2].end = (u32_t)vdc_node->regs + -+ sizeof(struct vdc_tio_vp_regs); -+ -+ /* -+ * Try to get the device registered -+ */ -+ if (platform_device_register(&vdc_tio_platform_device) < 0) { -+ printk(KERN_WARNING "VDC failed to register\n"); -+ } -+} ---- /dev/null -+++ b/arch/ubicom32/mach-ip5k/board-ip5160dev.c -@@ -0,0 +1,110 @@ -+/* -+ * arch/ubicom32/mach-ip5k/board-ip5160dev.c -+ * Platform initialization for ip5160dev board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+#include <asm/ubicom32suart.h> -+#endif -+ -+/* -+ * Factory Default Button on the board at PXn -+ * TODO: This is just a placeholder and it needs to include proper header files -+ */ -+struct ubicom32fdb_platform_data { -+ int fdb_gpio; -+ bool fdb_polarity; -+}; -+ -+static struct ubicom32fdb_platform_data ip5160dev_fdb_data = { -+ .fdb_gpio = 0, -+ .fdb_polarity = true, -+}; -+ -+static struct platform_device ip5160dev_fdb_device = { -+ .name = "ubicom32fdb", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip5160dev_fdb_data, -+ }, -+}; -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+static struct resource ip5160dev_ubicom32_suart_resources[] = { -+ { -+ .start = RD, -+ .end = RD, -+ .flags = IORESOURCE_MEM, -+ }, -+ { -+ .start = PORT_OTHER_INT(RD), -+ .end = PORT_OTHER_INT(RD), -+ .flags = IORESOURCE_IRQ, -+ }, -+ { -+ .start = 240000000, -+ .end = 240000000, -+ .flags = UBICOM32_SUART_IORESOURCE_CLOCK, -+ }, -+}; -+ -+static struct platform_device ip5160dev_ubicom32_suart_device = { -+ .name = "ubicom32suart", -+ .id = -1, -+ .num_resources = ARRAY_SIZE(ip5160dev_ubicom32_suart_resources), -+ .resource = ip5160dev_ubicom32_suart_resources, -+}; -+#endif -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip5160dev_devices[] __initdata = { -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+ &ip5160dev_ubicom32_suart_device, -+#endif -+ &ip5160dev_fdb_device, -+}; -+ -+/* -+ * ip5160dev_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip5160dev_init(void) -+{ -+ ubi_gpio_init(); -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip5160dev_devices, ARRAY_SIZE(ip5160dev_devices)); -+ return 0; -+} -+ -+arch_initcall(ip5160dev_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip5k/board-ip5160rgw.c -@@ -0,0 +1,76 @@ -+/* -+ * arch/ubicom32/mach-ip5k/board-ip5160rgw.c -+ * Platform initialization for ip5160rgw board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <asm/board.h> -+#include <asm/machdep.h> -+ -+/* -+ * Factory Default Button on the board at PXn -+ * TODO: This is just a placeholder and it needs to include proper header files -+ */ -+struct ubicom32fdb_platform_data { -+ int fdb_gpio; -+ bool fdb_polarity; -+}; -+ -+static struct ubicom32fdb_platform_data ip5160rgw_fdb_data = { -+ .fdb_gpio = 0, -+ .fdb_polarity = true, -+}; -+ -+static struct platform_device ip5160rgw_fdb_device = { -+ .name = "ubicom32fdb", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip5160rgw_fdb_data, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip5160rgw_devices[] __initdata = { -+ &ip5160rgw_fdb_device, -+}; -+ -+/* -+ * ip5160rgw_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip5160rgw_init(void) -+{ -+ ubi_gpio_init(); -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip5160rgw_devices, ARRAY_SIZE(ip5160rgw_devices)); -+ return 0; -+} -+ -+arch_initcall(ip5160rgw_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip5k/board-ip5170dpf.c -@@ -0,0 +1,280 @@ -+/* -+ * arch/ubicom32/mach-ip5k/board-ip5170dpf.c -+ * Platform initialization for ip5160dpf board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <linux/leds.h> -+ -+#include <linux/i2c.h> -+#include <linux/i2c-gpio.h> -+ -+#include <linux/input.h> -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32hid.h> -+#include <asm/vdc_tio.h> -+ -+/* -+ * LEDs -+ * -+ * WLAN PD9 (Note this is shared with MISO, but we don't use it) -+ * WPS PD8 -+ * -+ * TODO: check triggers, are they generic? -+ */ -+static struct gpio_led ip5170dpf_gpio_leds[] = { -+ { -+ .name = "d31:green:WLAN1", -+ .default_trigger = "WLAN1", -+ .gpio = GPIO_RD_9, -+ .active_low = 1, -+ }, -+ { -+ .name = "d30:green:WPS", -+ .default_trigger = "WPS", -+ .gpio = GPIO_RD_8, -+ .active_low = 1, -+ }, -+}; -+ -+static struct gpio_led_platform_data ip5170dpf_gpio_led_platform_data = { -+ .num_leds = 2, -+ .leds = ip5170dpf_gpio_leds, -+}; -+ -+static struct platform_device ip5170dpf_gpio_leds_device = { -+ .name = "leds-gpio", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip5170dpf_gpio_led_platform_data, -+ }, -+}; -+ -+/* -+ * Backlight on the board PD0, hardware PWM -+ */ -+static const struct ubicom32hid_button ip5170dpf_ubicom32hid_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .bit = 0, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .bit = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .bit = 2, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .bit = 3, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .bit = 4, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .bit = 5, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .bit = 7, -+ }, -+}; -+ -+static const struct ubicom32hid_ir ip5170dpf_ubicom32hid_ircodes[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .ir_code = 0xF807916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .ir_code = 0xF20D916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .ir_code = 0xF609916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .ir_code = 0xF40B916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .ir_code = 0xF50A916E -+ }, -+ { /* rotate */ -+ .type = EV_KEY, -+ .code = KEY_FN_F1, -+ .ir_code = 0xF906916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .ir_code = 0xF708916E -+ }, -+ { /* font size */ -+ .type = EV_KEY, -+ .code = KEY_FN_F2, -+ .ir_code = 0xF30C916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .ir_code = 0xF10E916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_VOLUMEUP, -+ .ir_code = 0xF00F916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_VOLUMEDOWN, -+ .ir_code = 0xED12916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MUTE, -+ .ir_code = 0xEA15916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_INFO, -+ .ir_code = 0xEF10916E -+ }, -+ { /* Like */ -+ .type = EV_KEY, -+ .code = KEY_FN_F3, -+ .ir_code = 0xEE11916E -+ }, -+ { /* Dislike */ -+ .type = EV_KEY, -+ .code = KEY_FN_F4, -+ .ir_code = 0xEB14916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_POWER, -+ .ir_code = 0xFD02916E -+ }, -+}; -+ -+static struct ubicom32hid_platform_data ip5170dpf_ubicom32hid_platform_data = { -+ .gpio_reset = GPIO_RA_4, -+ .gpio_reset_polarity = 0, -+ .type = UBICOM32HID_BL_TYPE_BINARY, -+ .invert = 0, -+ .default_intensity = 1, -+ .buttons = ip5170dpf_ubicom32hid_buttons, -+ .nbuttons = ARRAY_SIZE(ip5170dpf_ubicom32hid_buttons), -+ .ircodes = ip5170dpf_ubicom32hid_ircodes, -+ .nircodes = ARRAY_SIZE(ip5170dpf_ubicom32hid_ircodes), -+}; -+ -+/* -+ * Devices on the I2C bus -+ */ -+static struct i2c_board_info __initdata ip5170dpf_i2c_board_info[] = { -+ /* -+ * U24, ubicom32hid -+ */ -+ { -+ .type = "ubicom32hid", -+ .addr = 0x08, -+ .platform_data = &ip5170dpf_ubicom32hid_platform_data, -+ }, -+ -+ /* -+ * U14, CS4350 DAC, address 0x4B -+ */ -+}; -+ -+/* -+ * I2C bus on the board, SDA PF13, SCL PF14 -+ */ -+static struct i2c_gpio_platform_data ip5170dpf_i2c_data = { -+ .sda_pin = GPIO_RF_13, -+ .scl_pin = GPIO_RF_14, -+ .sda_is_open_drain = 0, -+ .scl_is_open_drain = 0, -+ .scl_is_output_only = 1, -+ .udelay = 5, -+}; -+ -+static struct platform_device ip5170dpf_i2c_device = { -+ .name = "i2c-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip5170dpf_i2c_data, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip5170dpf_devices[] __initdata = { -+ &ip5170dpf_i2c_device, -+ &ip5170dpf_gpio_leds_device, -+}; -+ -+/* -+ * ip5170dpf_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip5170dpf_init(void) -+{ -+ ubi_gpio_init(); -+ -+ vdc_tio_init(); -+ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip5170dpf_devices, ARRAY_SIZE(ip5170dpf_devices)); -+ -+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__); -+ i2c_register_board_info(0, ip5170dpf_i2c_board_info, ARRAY_SIZE(ip5170dpf_i2c_board_info)); -+ -+ return 0; -+} -+ -+arch_initcall(ip5170dpf_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip5k/Kconfig -@@ -0,0 +1,32 @@ -+ -+config IP5170DPF -+ bool "IP5170DPF" -+ select UBICOM32_V3 -+ select I2C -+ select I2C_GPIO -+ select FB -+ select FB_UBICOM32 -+ select BACKLIGHT_LCD_SUPPORT -+ select BACKLIGHT_CLASS_DEVICE -+ select UBICOM_HID -+ select NEW_LEDS -+ select LEDS_CLASS -+ select LEDS_GPIO -+ select BRD_64MB -+ help -+ IP5170 Digital Picture Frame board, 8005-1113, IP5K-BEV-0011-13 v1.3 -+ -+config IP5160DEV -+ bool "IP5160Dev_Ver1Dot1" -+ select UBICOM32_V3 -+ select BRD_64MB -+ help -+ Ubicom StreamEngine 5000 Development Board, IP5K-BDV-0004-11 v1.1 -+ -+config IP5160EVAL -+ bool "IP5160RGWEval_Ver2Rev2" -+ select UBICOM32_V3 -+ select BRD_32MB -+ help -+ Ubicom StreamEngine 5000 RGW Evaluation Board, IP5K-RGW-0004-11 v2.2 -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip5k/Makefile -@@ -0,0 +1,32 @@ -+# -+# arch/ubicom32/mach-ip5k/Makefile -+# Makefile for boards which have an ip5k on them. -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+obj-$(CONFIG_IP5170DPF) += board-ip5170dpf.o -+obj-$(CONFIG_IP5160DEV) += board-ip5160dev.o -+obj-$(CONFIG_IP5160EVAL) += board-ip5160rgw.o -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7145dpf.c -@@ -0,0 +1,716 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7145dpf.c -+ * Board file for IP7145DPF, rev 1.0, P/N 8007-0410 -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+ -+#include <linux/input.h> -+ -+#include <linux/i2c.h> -+#include <linux/i2c-gpio.h> -+#include <linux/i2c/pca953x.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32input.h> -+#include <asm/ubicom32input_i2c.h> -+#include <asm/ubicom32bl.h> -+#include <asm/ubicom32lcd.h> -+#include <asm/vdc_tio.h> -+ -+#include <asm/ubicom32sd.h> -+#include <asm/sd_tio.h> -+#include <asm/devtree.h> -+#include <asm/audio_tio.h> -+ -+#include <asm/ring_tio.h> -+ -+/****************************************************************************** -+ * SD/IO Port F (Slot 1) platform data -+ */ -+static struct resource ip7145dpf_portf_sd_resources[] = { -+ /* -+ * Send IRQ -+ */ -+ [0] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Receive IRQ -+ */ -+ [1] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Memory Mapped Registers -+ */ -+ [2] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+static struct ubicom32sd_card ip7145dpf_portf_sd_cards[] = { -+ [0] = { -+ .pin_wp = IP7145DPF_IOB0, -+ .wp_polarity = 1, -+ .pin_pwr = IP7145DPF_IOB4, -+ .pin_cd = GPIO_RA_4, -+ }, -+ [1] = { -+ .pin_wp = IP7145DPF_IOB1, -+ .wp_polarity = 1, -+ .pin_pwr = IP7145DPF_IOB5, -+ .pin_cd = GPIO_RA_6, -+ }, -+}; -+ -+static struct ubicom32sd_platform_data ip7145dpf_portf_sd_platform_data = { -+ .ncards = 2, -+ .cards = ip7145dpf_portf_sd_cards, -+}; -+ -+static struct platform_device ip7145dpf_portf_sd_device = { -+ .name = "ubicom32sd", -+ .id = 0, -+ .resource = ip7145dpf_portf_sd_resources, -+ .num_resources = ARRAY_SIZE(ip7145dpf_portf_sd_resources), -+ .dev = { -+ .platform_data = &ip7145dpf_portf_sd_platform_data, -+ }, -+ -+}; -+ -+/* -+ * ip7145dpf_portf_sd_init -+ */ -+static void ip7145dpf_portf_sd_init(void) -+{ -+ /* -+ * Check the device tree for the sd_tio -+ */ -+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd"); -+ if (!sd_node) { -+ printk(KERN_INFO "PortF SDTIO not found\n"); -+ return; -+ } -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ ip7145dpf_portf_sd_resources[0].start = sd_node->dn.sendirq; -+ ip7145dpf_portf_sd_resources[1].start = sd_node->dn.recvirq; -+ ip7145dpf_portf_sd_resources[2].start = (u32_t)&(sd_node->regs); -+ ip7145dpf_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs); -+ -+ platform_device_register(&ip7145dpf_portf_sd_device); -+} -+ -+/****************************************************************************** -+ * SD/IO Port B (Slot 2) platform data -+ */ -+static struct resource ip7145dpf_portb_sd_resources[] = { -+ /* -+ * Send IRQ -+ */ -+ [0] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Receive IRQ -+ */ -+ [1] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Memory Mapped Registers -+ */ -+ [2] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+static struct ubicom32sd_card ip7145dpf_portb_sd_cards[] = { -+ [0] = { -+ .pin_wp = IP7145DPF_IOB2, -+ .wp_polarity = 1, -+ .pin_pwr = IP7145DPF_IOB6, -+ .pin_cd = IP7145DPF_IOB3, -+ }, -+}; -+ -+static struct ubicom32sd_platform_data ip7145dpf_portb_sd_platform_data = { -+ .ncards = 1, -+ .cards = ip7145dpf_portb_sd_cards, -+}; -+ -+static struct platform_device ip7145dpf_portb_sd_device = { -+ .name = "ubicom32sd", -+ .id = 1, -+ .resource = ip7145dpf_portb_sd_resources, -+ .num_resources = ARRAY_SIZE(ip7145dpf_portb_sd_resources), -+ .dev = { -+ .platform_data = &ip7145dpf_portb_sd_platform_data, -+ }, -+ -+}; -+ -+/* -+ * ip7145dpf_portb_sd_init -+ */ -+static void ip7145dpf_portb_sd_init(void) -+{ -+ /* -+ * Check the device tree for the sd_tio -+ */ -+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd"); -+ if (!sd_node) { -+ printk(KERN_INFO "PortB SDTIO not found\n"); -+ return; -+ } -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ ip7145dpf_portb_sd_resources[0].start = sd_node->dn.sendirq; -+ ip7145dpf_portb_sd_resources[1].start = sd_node->dn.recvirq; -+ ip7145dpf_portb_sd_resources[2].start = (u32_t)&(sd_node->regs); -+ ip7145dpf_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs); -+ -+ platform_device_register(&ip7145dpf_portb_sd_device); -+} -+ -+ -+#ifdef IP7145DPF_USE_MMC_SPI -+/****************************************************************************** -+ * SPI over GPIO (MMC_SPI) -+ */ -+#include <linux/spi/spi.h> -+#include <linux/spi/mmc_spi.h> -+#include <linux/mmc/host.h> -+#include <asm/ubicom32-spi-gpio.h> -+ -+#define MMC_CS GPIO_RF_5 // PF5 D3 -+#define MMC_CD GPIO_RA_4 // PA4 CD -+#define MMC_WP IP7145DPF_IOB0 // IOB0 WP -+#define MMC_PWR IP7145DPF_IOB4 // IOB4 PWR -+ -+/* -+ * SPI bus over GPIO (for SD card) -+ */ -+static struct ubicom32_spi_gpio_platform_data ip7145dpf_spi_gpio_data = { -+ .pin_mosi = GPIO_RF_0, // PF0 CMD -+ .pin_miso = GPIO_RF_2, // PF2 D0 -+ .pin_clk = GPIO_RF_1, // PF1 CLK -+ .bus_num = 0, // We'll call this SPI bus 0 -+ .num_chipselect = 1, // only one device on this SPI bus -+}; -+ -+static struct platform_device ip7145dpf_spi_gpio_device = { -+ .name = "ubicom32-spi-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7145dpf_spi_gpio_data, -+ }, -+}; -+ -+/* -+ * ip7145dpf_mmc_spi_setpower_slot_a -+ * Set the power state for slot A -+ */ -+static void ip7145dpf_mmc_spi_setpower_slot_a(struct device *dev, unsigned int vdd) -+{ -+ struct mmc_spi_platform_data *pd = dev->platform_data; -+ -+ /* -+ * Power is inverted, we could tell the IOB to do it, but it's cleaner this way. -+ */ -+ if ((1 << vdd) & pd->ocr_mask) { -+ gpio_set_value(MMC_PWR, 0); -+ return; -+ } -+ gpio_set_value(MMC_PWR, 1); -+} -+ -+/* -+ * ip7145dpf_mmc_spi_get_cd_slot_a -+ * Get the CD bit for slot A -+ */ -+static int ip7145dpf_mmc_spi_get_cd_slot_a(struct device *dev) -+{ -+ /* -+ * Note that the sense of the GPIO is inverted -+ */ -+ return !gpio_get_value(MMC_CD); -+} -+ -+/* -+ * ip7145dpf_mmc_spi_get_ro_slot_a -+ * Get the WP bit for slot A -+ */ -+static int ip7145dpf_mmc_spi_get_ro_slot_a(struct device *dev) -+{ -+ /* -+ * Note that the sense of the GPIO is inverted, we could tell the IOB to do it, but -+ * it's clearer this way. -+ */ -+ return !gpio_get_value(MMC_WP); -+} -+ -+/* -+ * ip7145dpf_mmc_spi_exit_slot_a -+ * Free the appropriate GPIOs for slot A SD slot. -+ */ -+static void ip7145dpf_mmc_spi_exit_slot_a(struct device *dev, void *appdata) -+{ -+ gpio_free(MMC_CD); -+ gpio_free(MMC_CS); -+ gpio_free(MMC_WP); -+ gpio_free(MMC_PWR); -+ platform_device_unregister(&ip7145dpf_spi_gpio_device); -+} -+ -+/* -+ * ip7145dpf_mmc_spi_init_slot_a -+ * Allocate the appropriate GPIOs for slot A SD slot. -+ * WP is on IOB0, CD is PA4, CS is on PF5 -+ * TODO: make CD an interrupt -+ */ -+static int ip7145dpf_mmc_spi_init_slot_a(void) -+{ -+ int ret = gpio_request(MMC_CD, "mmc-a-cd"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request mmc-a-cd pin\n", __FUNCTION__); -+ return -ENOSYS; -+ } -+ gpio_direction_input(MMC_CD); -+ -+ ret = gpio_request(MMC_CS, "mmc-a-cs"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request mmc-a-cs pin\n", __FUNCTION__); -+ goto no_cs; -+ } -+ gpio_direction_output(MMC_CS, 0); -+ -+ ret = gpio_request(MMC_WP, "mmc-a-wp"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request mmc-a-wp pin\n", __FUNCTION__); -+ goto no_wp; -+ } -+ gpio_direction_input(MMC_WP); -+ -+ /* -+ * Start off with power off -+ */ -+ ret = gpio_request(MMC_PWR, "mmc-a-pwr"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request mmc-a-pwr pin\n", __FUNCTION__); -+ goto no_pwr; -+ } -+ ret = gpio_direction_output(MMC_PWR, 1); -+ -+ return 0; -+ -+no_pwr: -+ gpio_free(MMC_WP); -+ -+no_wp: -+ gpio_free(MMC_CS); -+ -+no_cs: -+ gpio_free(MMC_CD); -+ return -ENOSYS; -+} -+ -+/* -+ * MMC_SPI driver (currently bitbang) -+ */ -+static struct mmc_spi_platform_data ip7145dpf_mmc_platform_data = { -+ .ocr_mask = MMC_VDD_33_34, -+ .exit = ip7145dpf_mmc_spi_exit_slot_a, -+ .get_ro = ip7145dpf_mmc_spi_get_ro_slot_a, -+ .get_cd = ip7145dpf_mmc_spi_get_cd_slot_a, -+ -+ .setpower = ip7145dpf_mmc_spi_setpower_slot_a, -+ .powerup_msecs = 500, -+ -+ .detect_delay = 100, -+ -+ .caps = MMC_CAP_NEEDS_POLL, -+}; -+ -+static struct ubicom32_spi_gpio_controller_data ip7145dpf_mmc_controller_data = { -+ .pin_cs = MMC_CS, -+}; -+ -+static struct spi_board_info ip7145dpf_spi_board_info[] = { -+ { -+ .modalias = "mmc_spi", -+ .bus_num = 0, -+ .chip_select = 0, -+ .max_speed_hz = 2000000, -+ .platform_data = &ip7145dpf_mmc_platform_data, -+ .controller_data = &ip7145dpf_mmc_controller_data, -+ } -+}; -+#endif /* IP7145DPF_USE_MMC_SPI */ -+ -+/* -+ * ip7145dpf_u72_setup -+ * Called by I2C to tell us that u72 is setup. -+ * -+ * This function is called by I2C to tell us that u72 has been setup. All -+ * devices which rely on this chip being initialized (or even present) need to -+ * be initialized in this function otherwise they may get initialized too early. -+ * -+ * Currently the only device depending on u72 is the SPI -+ */ -+static int __init ip7145dpf_u72_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context) -+{ -+#ifdef IP7145DPF_USE_MMC_SPI -+ if (ip7145dpf_mmc_spi_init_slot_a()) { -+ printk(KERN_ERR "%s: could not request mmc resources\n", __FUNCTION__); -+ } else { -+ printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__); -+ spi_register_board_info(ip7145dpf_spi_board_info, ARRAY_SIZE(ip7145dpf_spi_board_info)); -+ platform_device_register(&ip7145dpf_spi_gpio_device); -+ } -+#else -+ /* -+ * Initialize the Port F/Port B SD slots -+ */ -+ ip7145dpf_portf_sd_init(); -+ ip7145dpf_portb_sd_init(); -+#endif -+ return 0; -+} -+ -+/****************************************************************************** -+ * LCD VGH on the board at PE6 -+ */ -+static struct ubicom32lcd_platform_data ip7145dpf_lcd_data = { -+ .vgh_gpio = GPIO_RE_6, -+ .vgh_polarity = true, -+}; -+ -+static struct platform_device ip7145dpf_lcd_device = { -+ .name = "ubicom32lcd", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7145dpf_lcd_data, -+ }, -+}; -+ -+/****************************************************************************** -+ * Backlight on the board PD0, hardware PWM -+ */ -+static struct ubicom32bl_platform_data ip7145dpf_backlight_data = { -+ .type = UBICOM32BL_TYPE_PWM, -+ .pwm_channel = 2, -+ .pwm_prescale = 15, -+ .pwm_period = 60, -+ .default_intensity = 0x80, -+}; -+ -+static struct platform_device ip7145dpf_backlight_device = { -+ .name = "ubicom32bl", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7145dpf_backlight_data, -+ }, -+}; -+ -+/****************************************************************************** -+ * Ubicom32Input on I2C, U48 MAX7310, address 0x18, 8 bits -+ */ -+static struct ubicom32input_i2c_button ip7145dpf_ubicom32input_i2c_u48_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .bit = 0, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .bit = 1, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .bit = 2, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .bit = 3, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .bit = 4, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .bit = 5, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .bit = 6, -+ .active_low = 1, -+ }, -+}; -+ -+static struct ubicom32input_i2c_platform_data ip7145dpf_ubicom32input_i2c_u48_platform_data = { -+ .buttons = ip7145dpf_ubicom32input_i2c_u48_buttons, -+ .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_i2c_u48_buttons), -+ .name = "Ubicom32 Input I2C U48", -+}; -+ -+/****************************************************************************** -+ * Additional GPIO chips -+ */ -+static struct pca953x_platform_data ip7145dpf_gpio_u72_platform_data = { -+ .gpio_base = IP7145DPF_U72_BASE, -+ .setup = ip7145dpf_u72_setup, -+}; -+ -+/****************************************************************************** -+ * Devices on the I2C bus -+ */ -+static struct i2c_board_info __initdata ip7145dpf_i2c_board_info[] = { -+ /* -+ * U51, S35390A RTC, address 0x30 -+ */ -+ { -+ .type = "s35390a", -+ .addr = 0x30, -+ }, -+ -+ /* -+ * U48, MAX7310 IO expander, 8 bits, address 0x18 -+ */ -+ { -+ .type = "ubicom32in_max7310", -+ .addr = 0x18, -+ .platform_data = &ip7145dpf_ubicom32input_i2c_u48_platform_data, -+ }, -+ -+ /* -+ * U72, MAX7310 IOB expander, 8 bits, address 0x19 -+ */ -+ { -+ .type = "max7310", -+ .addr = 0x19, -+ .platform_data = &ip7145dpf_gpio_u72_platform_data, -+ }, -+}; -+ -+/* -+ * I2C bus on the board, SDA PE1, SCL PE2 -+ */ -+static struct i2c_gpio_platform_data ip7145dpf_i2c_data = { -+ .sda_pin = GPIO_RE_1, -+ .scl_pin = GPIO_RE_2, -+ .sda_is_open_drain = 0, -+ .scl_is_open_drain = 0, -+}; -+ -+static struct platform_device ip7145dpf_i2c_device = { -+ .name = "i2c-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7145dpf_i2c_data, -+ }, -+}; -+ -+/****************************************************************************** -+ * Use ubicom32input driver to monitor the various pushbuttons on this board. -+ * -+ * WPS PF12 -+ * FACT_DEFAULT PF13 -+ * POWER PE4 -+ * -+ * Not sutable for the keypad buttons since those run on I2C GPIO. The polling -+ * of ubicom32input would seem to be excessive for this. -+ * -+ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default -+ */ -+static struct ubicom32input_button ip7145dpf_ubicom32input_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F1, -+ .gpio = GPIO_RF_12, -+ .desc = "WPS", -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F2, -+ .gpio = GPIO_RF_13, -+ .desc = "Factory Default", -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_POWER, -+ .gpio = GPIO_RE_4, -+ .desc = "Power", -+ .active_low = 1, -+ }, -+}; -+ -+static struct ubicom32input_platform_data ip7145dpf_ubicom32input_data = { -+ .buttons = ip7145dpf_ubicom32input_buttons, -+ .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_buttons), -+}; -+ -+static struct platform_device ip7145dpf_ubicom32input_device = { -+ .name = "ubicom32input", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7145dpf_ubicom32input_data, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7145dpf_devices[] __initdata = { -+ &ip7145dpf_i2c_device, -+ &ip7145dpf_lcd_device, -+ &ip7145dpf_backlight_device, -+ &ip7145dpf_ubicom32input_device, -+}; -+ -+/* -+ * ip7145dpf_power_off -+ * Called to turn the power off for this board -+ */ -+static void ip7145dpf_power_off(void) -+{ -+ gpio_set_value(GPIO_RE_5, 0); -+} -+ -+/* -+ * ip7145dpf_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7145dpf_init(void) -+{ -+ int ret; -+ struct platform_device *audio_dev; -+ -+ ubi_gpio_init(); -+ -+#ifdef CONFIG_UIO_UBICOM32RING -+ ring_tio_init("decoder_ring"); -+#endif -+ -+ /* -+ * Start up the video driver first -+ */ -+ vdc_tio_init(); -+ -+ /* -+ * Take over holding of the power from the system -+ */ -+ ret = gpio_request(GPIO_RE_5, "power_hold"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request power hold GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RE_5, 1); -+ mach_power_off = ip7145dpf_power_off; -+ -+ /* -+ * USB SEL_HOST_USB line -+ */ -+ ret = gpio_request(GPIO_RF_11, "SEL_HOST_USB"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RF_11, 0); -+ -+ /* -+ * Setup audio -+ */ -+ audio_dev = audio_tio_alloc("snd-ubi32-generic", "audiotio-i2sout", 0); -+ if (audio_dev) { -+ platform_device_register(audio_dev); -+ } -+ -+ /* -+ * Register all of the devices we have on this board -+ */ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7145dpf_devices, ARRAY_SIZE(ip7145dpf_devices)); -+ -+ /* -+ * Register all of the devices which sit on the I2C bus -+ */ -+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__); -+ i2c_register_board_info(0, ip7145dpf_i2c_board_info, ARRAY_SIZE(ip7145dpf_i2c_board_info)); -+ -+ /* -+ * We have to initialize the SPI after the I2C IOB gets setup. SPI is initialized in -+ * ip7145dpf_u72_setup -+ */ -+ -+ return 0; -+} -+ -+arch_initcall(ip7145dpf_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7160bringup.c -@@ -0,0 +1,135 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7160bringup.c -+ * Support for the IP7160 bringup board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <linux/leds.h> -+#include <linux/delay.h> -+#include <linux/input.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32input.h> -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+#include <asm/ubicom32suart.h> -+#endif -+ -+/* -+ * Use ubicom32input driver to monitor the various pushbuttons on this board. -+ * -+ * WPS PD5 -+ * FACT_DEFAULT PD6 -+ * -+ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default -+ */ -+static struct ubicom32input_button ip7160bringup_ubicom32input_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F1, -+ .gpio = GPIO_RD_5, -+ .desc = "WPS", -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F2, -+ .gpio = GPIO_RD_6, -+ .desc = "Factory Default", -+ .active_low = 1, -+ }, -+}; -+ -+static struct ubicom32input_platform_data ip7160bringup_ubicom32input_data = { -+ .buttons = ip7160bringup_ubicom32input_buttons, -+ .nbuttons = ARRAY_SIZE(ip7160bringup_ubicom32input_buttons), -+}; -+ -+static struct platform_device ip7160bringup_ubicom32input_device = { -+ .name = "ubicom32input", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7160bringup_ubicom32input_data, -+ }, -+}; -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+static struct resource ip7160bringup_ubicom32_suart_resources[] = { -+ { -+ .start = RE, -+ .end = RE, -+ .flags = IORESOURCE_MEM, -+ }, -+ { -+ .start = PORT_OTHER_INT(RE), -+ .end = PORT_OTHER_INT(RE), -+ .flags = IORESOURCE_IRQ, -+ }, -+ { -+ .start = 250000000, -+ .end = 250000000, -+ .flags = UBICOM32_SUART_IORESOURCE_CLOCK, -+ }, -+}; -+ -+static struct platform_device ip7160bringup_ubicom32_suart_device = { -+ .name = "ubicom32suart", -+ .id = -1, -+ .num_resources = ARRAY_SIZE(ip7160bringup_ubicom32_suart_resources), -+ .resource = ip7160bringup_ubicom32_suart_resources, -+}; -+#endif -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7160bringup_devices[] __initdata = { -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+ &ip7160bringup_ubicom32_suart_device, -+#endif -+ &ip7160bringup_ubicom32input_device, -+}; -+ -+/* -+ * ip7160bringup_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7160bringup_init(void) -+{ -+ board_init(); -+ -+ ubi_gpio_init(); -+ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7160bringup_devices, ARRAY_SIZE(ip7160bringup_devices)); -+ -+ return 0; -+} -+ -+arch_initcall(ip7160bringup_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7160dpf.c -@@ -0,0 +1,327 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7160dpf.c -+ * Platform initialization for ip7160dpf board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/delay.h> -+#include <linux/gpio.h> -+ -+#include <linux/i2c.h> -+#include <linux/i2c-gpio.h> -+ -+#include <linux/input.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32hid.h> -+#include <asm/vdc_tio.h> -+#include <asm/audio_tio.h> -+ -+/* -+ * Backlight on the board PD0, hardware PWM -+ */ -+static const struct ubicom32hid_button ip7160dpf_ubicom32hid_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .bit = 0, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .bit = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .bit = 2, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .bit = 3, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .bit = 4, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .bit = 5, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .bit = 7, -+ }, -+}; -+ -+static const struct ubicom32hid_ir ip7160dpf_ubicom32hid_ircodes[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .ir_code = 0xF807916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .ir_code = 0xF20D916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .ir_code = 0xF609916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .ir_code = 0xF40B916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .ir_code = 0xF50A916E -+ }, -+ { /* rotate */ -+ .type = EV_KEY, -+ .code = KEY_FN_F1, -+ .ir_code = 0xF906916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .ir_code = 0xF708916E -+ }, -+ { /* font size */ -+ .type = EV_KEY, -+ .code = KEY_FN_F2, -+ .ir_code = 0xF30C916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .ir_code = 0xF10E916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_VOLUMEUP, -+ .ir_code = 0xF00F916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_VOLUMEDOWN, -+ .ir_code = 0xED12916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MUTE, -+ .ir_code = 0xEA15916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_INFO, -+ .ir_code = 0xEF10916E -+ }, -+ { /* Like */ -+ .type = EV_KEY, -+ .code = KEY_FN_F3, -+ .ir_code = 0xEE11916E -+ }, -+ { /* Dislike */ -+ .type = EV_KEY, -+ .code = KEY_FN_F4, -+ .ir_code = 0xEB14916E -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_POWER, -+ .ir_code = 0xFD02916E -+ }, -+}; -+ -+static struct ubicom32hid_platform_data ip7160dpf_ubicom32hid_platform_data = { -+ .gpio_reset = GPIO_RI_5, -+ .gpio_reset_polarity = 0, -+ .type = UBICOM32HID_BL_TYPE_PWM, -+ .invert = 0, -+ .default_intensity = 128, -+ .buttons = ip7160dpf_ubicom32hid_buttons, -+ .nbuttons = ARRAY_SIZE(ip7160dpf_ubicom32hid_buttons), -+ .ircodes = ip7160dpf_ubicom32hid_ircodes, -+ .nircodes = ARRAY_SIZE(ip7160dpf_ubicom32hid_ircodes), -+}; -+ -+/* -+ * Devices on the I2C bus -+ * This board has a "bus 2" which is isolated from the main bus by U47 -+ * and pin RI0. It should be safe to always enable bus 2 by setting -+ * RI0 to low, however, it should be noted that on all existing configurations -+ * of this board, U49 and U51 are not populated. -+ */ -+static struct i2c_board_info __initdata ip7160dpf_i2c_board_info[] = { -+ /* -+ * U37, CS4350 DAC, address 0x4B, bus 2 -+ * THIS ENTRY MUST BE FIRST -+ */ -+ { -+ .type = "cs4350", -+ .addr = 0x4B, -+ } -+ -+ /* -+ * U24, ubicom32hid -+ */ -+ { -+ .type = "ubicom32hid", -+ .addr = 0x08, -+ .platform_data = &ip7160dpf_ubicom32hid_platform_data, -+ }, -+ -+ /* -+ * U49, ISL29001 Ambient Light Sensor, address 0x44, bus 2 (may not be stuffed) -+ */ -+ -+ /* -+ * U51, S35390A RTC, address 0x30, bus 2 (may not be stuffed) -+ */ -+#ifdef CONFIG_RTC_DRV_S35390A -+ { -+ .type = "s35390a", -+ .addr = 0x30, -+ }, -+#endif -+}; -+ -+/* -+ * I2C bus on the board, SDA PI1, SCL PI2 -+ */ -+static struct i2c_gpio_platform_data ip7160dpf_i2c_data = { -+ .sda_pin = GPIO_RI_1, -+ .scl_pin = GPIO_RI_2, -+ .sda_is_open_drain = 0, -+ .scl_is_open_drain = 0, -+ .scl_is_output_only = 1, -+ .udelay = 6, -+}; -+ -+static struct platform_device ip7160dpf_i2c_device = { -+ .name = "i2c-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7160dpf_i2c_data, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7160dpf_devices[] __initdata = { -+ &ip7160dpf_i2c_device, -+}; -+ -+/* -+ * ip7160dpf_power_off -+ * Called to turn the power off for this board -+ */ -+static void ip7160dpf_power_off(void) -+{ -+ gpio_set_value(GPIO_RF_14, 0); -+} -+ -+/* -+ * ip7160dpf_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7160dpf_init(void) -+{ -+ int ret; -+ struct platform_device *audio_dev; -+ -+ ubi_gpio_init(); -+ -+ /* -+ * Hold the POWER_HOLD line -+ */ -+ ret = gpio_request(GPIO_RF_14, "POWER_HOLD"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RF_14, 0); -+ mach_power_off = ip7160dpf_power_off; -+ -+ /* -+ * USB SEL_HOST_USB line -+ */ -+ ret = gpio_request(GPIO_RI_13, "SEL_HOST_USB"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RI_13, 0); -+ -+ /* -+ * USB/DAC nRESET line -+ */ -+ ret = gpio_request(GPIO_RI_3, "USB_DAC_nRESET"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request USB_DAC_nRESET GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RI_3, 0); -+ udelay(1); -+ gpio_direction_output(GPIO_RI_3, 1); -+ -+ /* -+ * I2C BUS2 Disable line -+ */ -+ ret = gpio_request(GPIO_RI_0, "DISABLE_BUS2"); -+ if (ret) { -+ printk(KERN_ERR "%s: could not request DISABLE_BUS2 GPIO\n", __FUNCTION__); -+ } -+ gpio_direction_output(GPIO_RI_0, 0); -+ -+ vdc_tio_init(); -+ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7160dpf_devices, ARRAY_SIZE(ip7160dpf_devices)); -+ -+ /* -+ * Allocate the audio driver if we can -+ */ -+ audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0); -+ if (audio_dev) { -+ ip7160dpf_i2c_board_info[0].platform_data = audio_dev; -+ } -+ -+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__); -+ i2c_register_board_info(0, ip7160dpf_i2c_board_info, ARRAY_SIZE(ip7160dpf_i2c_board_info)); -+ -+ return 0; -+} -+ -+arch_initcall(ip7160dpf_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7160rgw.c -@@ -0,0 +1,255 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7160rgw.c -+ * Platform initialization for ip7160rgw board. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <linux/leds.h> -+#include <linux/delay.h> -+#include <linux/input.h> -+#include <linux/spi/spi.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32input.h> -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+#include <asm/ubicom32suart.h> -+#endif -+ -+#include <asm/ubicom32-spi-gpio.h> -+#include <asm/switch-bcm539x.h> -+ -+/* -+ * SPI bus over GPIO for Gigabit Ethernet Switch -+ * U58: -+ * MOSI PE0 -+ * MISO PE1 -+ * CLK PE3 -+ * CS PE2 -+ */ -+static struct ubicom32_spi_gpio_platform_data ip7160rgw_spi_gpio_data = { -+ .pin_mosi = GPIO_RE_0, -+ .pin_miso = GPIO_RE_1, -+ .pin_clk = GPIO_RE_3, -+ .bus_num = 0, // We'll call this SPI bus 0 -+ .num_chipselect = 1, // only one device on this SPI bus -+ .clk_default = 1, -+}; -+ -+static struct platform_device ip7160rgw_spi_gpio_device = { -+ .name = "ubicom32-spi-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7160rgw_spi_gpio_data, -+ }, -+}; -+ -+static struct ubicom32_spi_gpio_controller_data ip7160rgw_bcm539x_controller_data = { -+ .pin_cs = GPIO_RE_2, -+}; -+ -+static struct switch_bcm539x_platform_data ip7160rgw_bcm539x_platform_data = { -+ .flags = SWITCH_BCM539X_FLAG_HW_RESET, -+ .pin_cs = GPIO_RE_2, -+ .pin_reset = GPIO_RE_4, -+ .name = "bcm539x", -+}; -+ -+static struct spi_board_info ip7160rgw_spi_board_info[] = { -+ { -+ .modalias = "bcm539x-spi", -+ .bus_num = 0, -+ .chip_select = 0, -+ .max_speed_hz = 2000000, -+ .platform_data = &ip7160rgw_bcm539x_platform_data, -+ .controller_data = &ip7160rgw_bcm539x_controller_data, -+ .mode = SPI_MODE_3, -+ } -+}; -+ -+/* -+ * LEDs -+ * -+ * WLAN1 PD0 (PWM capable) -+ * WLAN2 PD1 -+ * USB2.0 PD2 -+ * Status PD3 -+ * WPS PD4 -+ * -+ * TODO: check triggers, are they generic? -+ */ -+static struct gpio_led ip7160rgw_gpio_leds[] = { -+ { -+ .name = "d53:green:WLAN1", -+ .default_trigger = "WLAN1", -+ .gpio = GPIO_RD_0, -+ .active_low = 1, -+ }, -+ { -+ .name = "d54:green:WLAN2", -+ .default_trigger = "WLAN2", -+ .gpio = GPIO_RD_1, -+ .active_low = 1, -+ }, -+ { -+ .name = "d55:green:USB", -+ .default_trigger = "USB", -+ .gpio = GPIO_RD_2, -+ .active_low = 1, -+ }, -+ { -+ .name = "d56:green:Status", -+ .default_trigger = "Status", -+ .gpio = GPIO_RD_3, -+ .active_low = 1, -+ }, -+ { -+ .name = "d57:green:WPS", -+ .default_trigger = "WPS", -+ .gpio = GPIO_RD_4, -+ .active_low = 1, -+ }, -+}; -+ -+static struct gpio_led_platform_data ip7160rgw_gpio_led_platform_data = { -+ .num_leds = 5, -+ .leds = ip7160rgw_gpio_leds, -+}; -+ -+static struct platform_device ip7160rgw_gpio_leds_device = { -+ .name = "leds-gpio", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7160rgw_gpio_led_platform_data, -+ }, -+}; -+ -+/* -+ * Use ubicom32input driver to monitor the various pushbuttons on this board. -+ * -+ * WPS PD5 -+ * FACT_DEFAULT PD6 -+ * -+ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default -+ */ -+static struct ubicom32input_button ip7160rgw_ubicom32input_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F1, -+ .gpio = GPIO_RD_5, -+ .desc = "WPS", -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_FN_F2, -+ .gpio = GPIO_RD_6, -+ .desc = "Factory Default", -+ .active_low = 1, -+ }, -+}; -+ -+static struct ubicom32input_platform_data ip7160rgw_ubicom32input_data = { -+ .buttons = ip7160rgw_ubicom32input_buttons, -+ .nbuttons = ARRAY_SIZE(ip7160rgw_ubicom32input_buttons), -+}; -+ -+static struct platform_device ip7160rgw_ubicom32input_device = { -+ .name = "ubicom32input", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7160rgw_ubicom32input_data, -+ }, -+}; -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+static struct resource ip7160rgw_ubicom32_suart_resources[] = { -+ { -+ .start = RE, -+ .end = RE, -+ .flags = IORESOURCE_MEM, -+ }, -+ { -+ .start = PORT_OTHER_INT(RE), -+ .end = PORT_OTHER_INT(RE), -+ .flags = IORESOURCE_IRQ, -+ }, -+ { -+ .start = 250000000, -+ .end = 250000000, -+ .flags = UBICOM32_SUART_IORESOURCE_CLOCK, -+ }, -+}; -+ -+static struct platform_device ip7160rgw_ubicom32_suart_device = { -+ .name = "ubicom32suart", -+ .id = -1, -+ .num_resources = ARRAY_SIZE(ip7160rgw_ubicom32_suart_resources), -+ .resource = ip7160rgw_ubicom32_suart_resources, -+}; -+#endif -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7160rgw_devices[] __initdata = { -+#ifdef CONFIG_SERIAL_UBI32_SERDES -+ &ip7160rgw_ubicom32_suart_device, -+#endif -+ &ip7160rgw_ubicom32input_device, -+ &ip7160rgw_gpio_leds_device, -+ &ip7160rgw_spi_gpio_device, -+}; -+ -+/* -+ * ip7160rgw_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7160rgw_init(void) -+{ -+ board_init(); -+ -+ /* -+ * Rev 1.2 boards have spi in a different place than 1.1/1.0 -+ */ -+ if (strcmp(board_get_revision(), "1.2") == 0) { -+ ip7160rgw_spi_gpio_data.pin_mosi = GPIO_RD_7; -+ } -+ -+ ubi_gpio_init(); -+ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7160rgw_devices, ARRAY_SIZE(ip7160rgw_devices)); -+ -+ printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__); -+ spi_register_board_info(ip7160rgw_spi_board_info, ARRAY_SIZE(ip7160rgw_spi_board_info)); -+ -+ return 0; -+} -+ -+arch_initcall(ip7160rgw_init); ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7500av.c -@@ -0,0 +1,167 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7500av.c -+ * Support for IP7500 Audio Video Board + CPU module board. -+ * -+ * This file supports the IP7500 Audio Video Board: -+ * 8007-0810 Rev 1.0 -+ * with one of the following CPU module boards: -+ * 8007-0510 Rev 1.0 -+ * 8007-0510A Rev 1.0 (with ethernet) -+ * -+ * DIP Switch SW2 configuration: (*) default -+ * POS 1: on(*) = PCI enabled, off = PCI disabled -+ * POS 2: on(*) = TTYX => PA6, off = TTYX => PF12 -+ * POS 3: on(*) = TTYY => PA7, off = TTYY => PF15 -+ * POS 4: unused -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <linux/i2c.h> -+#include <linux/i2c-gpio.h> -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ring_tio.h> -+#include <asm/vdc_tio.h> -+#include <asm/audio_tio.h> -+#include <asm/ubi32-cs4384.h> -+ -+/****************************************************************************** -+ * Devices on the I2C bus -+ * -+ * BEWARE of changing the order of things in this array as we depend on -+ * certain things to be in certain places. -+ */ -+static struct i2c_board_info __initdata ip7500av_i2c_board_info[] = { -+ /* -+ * U6, CS4384 DAC, address 0x19 -+ */ -+ { -+ .type = "cs4384", -+ .addr = 0x19, -+ }, -+}; -+ -+/* -+ * I2C bus on the board, SDA PD1, SCL PD2 -+ */ -+static struct i2c_gpio_platform_data ip7500av_i2c_data = { -+ .sda_pin = GPIO_RD_6, -+ .scl_pin = GPIO_RD_3, -+ .sda_is_open_drain = 0, -+ .scl_is_open_drain = 0, -+ .udelay = 50, -+}; -+ -+static struct platform_device ip7500av_i2c_device = { -+ .name = "i2c-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7500av_i2c_data, -+ }, -+}; -+ -+/* -+ * List of possible mclks we can generate. This depends on the CPU frequency. -+ */ -+static struct ubi32_cs4384_mclk_entry ip7500av_cs4384_mclk_entries[] = { -+ { -+ .rate = 12288000, -+ .div = 44, -+ }, -+ { -+ .rate = 11289600, -+ .div = 48, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7500av_devices[] __initdata = { -+ &ip7500av_i2c_device, -+}; -+ -+/* -+ * ip7500av_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7500av_init(void) -+{ -+ struct platform_device *audio_dev; -+ struct platform_device *audio_dev2; -+ struct ubi32_cs4384_platform_data *cs4384_pd; -+ -+ board_init(); -+ -+ vdc_tio_init(); -+ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7500av_devices, ARRAY_SIZE(ip7500av_devices)); -+ -+ /* -+ * CS4384 DAC -+ */ -+ audio_dev = audio_tio_alloc("snd-ubi32-cs4384", "audiotio-i2sout", -+ sizeof(struct ubi32_cs4384_platform_data)); -+ if (audio_dev) { -+ /* -+ * Attempt to figure out a good divisor. This will only work -+ * assuming the core frequency is compatible. -+ */ -+ int i; -+ unsigned int freq = processor_frequency(); -+ for (i = 0; i < ARRAY_SIZE(ip7500av_cs4384_mclk_entries); i++) { -+ unsigned int div; -+ unsigned int rate = ip7500av_cs4384_mclk_entries[i].rate / 1000; -+ div = ((freq / rate) + 500) / 1000; -+ ip7500av_cs4384_mclk_entries[i].div = div; -+ printk("CS4384 mclk %d rate %u000Hz div %u act %u\n", i, rate, div, freq / div); -+ } -+ -+ cs4384_pd = audio_tio_priv(audio_dev); -+ cs4384_pd->mclk_src = UBI32_CS4384_MCLK_PWM_0; -+ cs4384_pd->n_mclk = ARRAY_SIZE(ip7500av_cs4384_mclk_entries); -+ cs4384_pd->mclk_entries = ip7500av_cs4384_mclk_entries; -+ ip7500av_i2c_board_info[0].platform_data = audio_dev; -+ } -+ -+ /* -+ * SPDIF port -+ */ -+ audio_dev2 = audio_tio_alloc("snd-ubi32-generic", "audiotio-spdifout", 0); -+ if (audio_dev2) { -+ platform_device_register(audio_dev2); -+ } -+ -+ /* -+ * Register all of the devices which sit on the I2C bus -+ */ -+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__); -+ i2c_register_board_info(0, ip7500av_i2c_board_info, ARRAY_SIZE(ip7500av_i2c_board_info)); -+ -+ ubi_gpio_init(); -+ -+ return 0; -+} -+arch_initcall(ip7500av_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7500media.c -@@ -0,0 +1,520 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7500media.c -+ * Board file for IP7500 media board. -+ * -+ * Supports the following configuration -+ * CPU Module: -+ * P/N 8007-0510 rev 1.0 -+ * DIP Switch SW2 configuration: -+ * POS 1: on = PCI enabled -+ * POS 2: off = TTYX => PF12 -+ * POS 3: off = TTYY => PF15 -+ * POS 4: unused -+ * Media Board: -+ * P/N 8007-0610 rev 1.0 -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+ -+#include <linux/input.h> -+ -+#include <linux/i2c.h> -+#include <linux/i2c-gpio.h> -+#include <linux/i2c/pca953x.h> -+ -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ubicom32input_i2c.h> -+#include <asm/ubicom32bl.h> -+#include <asm/ubicom32lcd.h> -+#include <asm/vdc_tio.h> -+ -+#include <asm/ubicom32sd.h> -+#include <asm/sd_tio.h> -+#include <asm/devtree.h> -+#include <asm/audio_tio.h> -+ -+#include <asm/ring_tio.h> -+ -+/****************************************************************************** -+ * SD/IO Port F (Slot 1) platform data -+ */ -+static struct resource ip7500media_portf_sd_resources[] = { -+ /* -+ * Send IRQ -+ */ -+ [0] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Receive IRQ -+ */ -+ [1] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Memory Mapped Registers -+ */ -+ [2] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+static struct ubicom32sd_card ip7500media_portf_sd_cards[] = { -+ [0] = { -+ .pin_wp = IP7500MEDIA_IO16, -+ .wp_polarity = 1, -+ .pin_pwr = IP7500MEDIA_IO20, -+ .pin_cd = IP7500MEDIA_IO23, -+ }, -+ [1] = { -+ .pin_wp = IP7500MEDIA_IO17, -+ .wp_polarity = 1, -+ .pin_pwr = IP7500MEDIA_IO21, -+ .pin_cd = IP7500MEDIA_IO24, -+ }, -+}; -+ -+static struct ubicom32sd_platform_data ip7500media_portf_sd_platform_data = { -+ .ncards = 2, -+ .cards = ip7500media_portf_sd_cards, -+}; -+ -+static struct platform_device ip7500media_portf_sd_device = { -+ .name = "ubicom32sd", -+ .id = 0, -+ .resource = ip7500media_portf_sd_resources, -+ .num_resources = ARRAY_SIZE(ip7500media_portf_sd_resources), -+ .dev = { -+ .platform_data = &ip7500media_portf_sd_platform_data, -+ }, -+ -+}; -+ -+/* -+ * ip7500media_portf_sd_init -+ */ -+static void ip7500media_portf_sd_init(void) -+{ -+ /* -+ * Check the device tree for the sd_tio -+ */ -+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd"); -+ if (!sd_node) { -+ printk(KERN_INFO "PortF SDTIO not found\n"); -+ return; -+ } -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ ip7500media_portf_sd_resources[0].start = sd_node->dn.sendirq; -+ ip7500media_portf_sd_resources[1].start = sd_node->dn.recvirq; -+ ip7500media_portf_sd_resources[2].start = (u32_t)&(sd_node->regs); -+ ip7500media_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs); -+ -+ platform_device_register(&ip7500media_portf_sd_device); -+} -+ -+/****************************************************************************** -+ * SD/IO Port B (Slot 2) platform data -+ */ -+static struct resource ip7500media_portb_sd_resources[] = { -+ /* -+ * Send IRQ -+ */ -+ [0] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Receive IRQ -+ */ -+ [1] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_IRQ, -+ }, -+ -+ /* -+ * Memory Mapped Registers -+ */ -+ [2] = { -+ /* -+ * The init routine will query the devtree and fill this in -+ */ -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+static struct ubicom32sd_card ip7500media_portb_sd_cards[] = { -+ [0] = { -+ .pin_wp = IP7500MEDIA_IO19, -+ .wp_polarity = 1, -+ .pin_pwr = IP7500MEDIA_IO22, -+ .pin_cd = IP7500MEDIA_IO18, -+ }, -+}; -+ -+static struct ubicom32sd_platform_data ip7500media_portb_sd_platform_data = { -+ .ncards = 1, -+ .cards = ip7500media_portb_sd_cards, -+}; -+ -+static struct platform_device ip7500media_portb_sd_device = { -+ .name = "ubicom32sd", -+ .id = 1, -+ .resource = ip7500media_portb_sd_resources, -+ .num_resources = ARRAY_SIZE(ip7500media_portb_sd_resources), -+ .dev = { -+ .platform_data = &ip7500media_portb_sd_platform_data, -+ }, -+ -+}; -+ -+/* -+ * ip7500media_portb_sd_init -+ */ -+static void ip7500media_portb_sd_init(void) -+{ -+ /* -+ * Check the device tree for the sd_tio -+ */ -+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd"); -+ if (!sd_node) { -+ printk(KERN_INFO "PortB SDTIO not found\n"); -+ return; -+ } -+ -+ /* -+ * Fill in the resources and platform data from devtree information -+ */ -+ ip7500media_portb_sd_resources[0].start = sd_node->dn.sendirq; -+ ip7500media_portb_sd_resources[1].start = sd_node->dn.recvirq; -+ ip7500media_portb_sd_resources[2].start = (u32_t)&(sd_node->regs); -+ ip7500media_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs); -+ -+ platform_device_register(&ip7500media_portb_sd_device); -+} -+ -+/* -+ * ip7500media_u17_setup -+ * Called by I2C to tell us that u17 is setup. -+ * -+ * This function is called by I2C to tell us that u17 has been setup. All -+ * devices which rely on this chip being initialized (or even present) need to -+ * be initialized in this function otherwise they may get initialized too early. -+ * -+ * Currently the only device depending on u17 is the SDIO -+ */ -+static int __init ip7500media_u17_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context) -+{ -+ /* -+ * Initialize the Port F/Port B SD slots (only the enabled ports will init) -+ */ -+ ip7500media_portf_sd_init(); -+ ip7500media_portb_sd_init(); -+ -+ return 0; -+} -+ -+/****************************************************************************** -+ * LCD VGH on the board at PE6 -+ */ -+static struct ubicom32lcd_platform_data ip7500media_lcd_data = { -+ .vgh_gpio = GPIO_RE_7, -+ .vgh_polarity = true, -+}; -+ -+static struct platform_device ip7500media_lcd_device = { -+ .name = "ubicom32lcd", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7500media_lcd_data, -+ }, -+}; -+ -+/****************************************************************************** -+ * Backlight on the board PD0, hardware PWM -+ */ -+static struct ubicom32bl_platform_data ip7500media_backlight_data = { -+ .type = UBICOM32BL_TYPE_PWM, -+ .pwm_channel = 2, -+ .pwm_prescale = 15, -+ .pwm_period = 60, -+ .default_intensity = 0x80, -+}; -+ -+static struct platform_device ip7500media_backlight_device = { -+ .name = "ubicom32bl", -+ .id = -1, -+ .dev = { -+ .platform_data = &ip7500media_backlight_data, -+ }, -+}; -+ -+/****************************************************************************** -+ * Ubicom32Input on I2C, U15 MAX7310, address 0x18, 8 bits -+ */ -+static struct ubicom32input_i2c_button ip7500media_ubicom32input_i2c_u15_buttons[] = { -+ { -+ .type = EV_KEY, -+ .code = KEY_LEFT, -+ .bit = 0, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_RIGHT, -+ .bit = 1, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_UP, -+ .bit = 2, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_DOWN, -+ .bit = 3, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ENTER, -+ .bit = 4, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_MENU, -+ .bit = 5, -+ .active_low = 1, -+ }, -+ { -+ .type = EV_KEY, -+ .code = KEY_ESC, -+ .bit = 6, -+ .active_low = 1, -+ }, -+}; -+ -+static struct ubicom32input_i2c_platform_data ip7500media_ubicom32input_i2c_u15_platform_data = { -+ .buttons = ip7500media_ubicom32input_i2c_u15_buttons, -+ .nbuttons = ARRAY_SIZE(ip7500media_ubicom32input_i2c_u15_buttons), -+ .name = "Ubicom32 Input I2C U15", -+}; -+ -+/****************************************************************************** -+ * Additional GPIO chips -+ */ -+static struct pca953x_platform_data ip7500media_gpio_u16_platform_data = { -+ .gpio_base = IP7500MEDIA_U16_BASE, -+}; -+ -+static struct pca953x_platform_data ip7500media_gpio_u17_platform_data = { -+ .gpio_base = IP7500MEDIA_U17_BASE, -+ .setup = ip7500media_u17_setup, -+}; -+ -+static struct pca953x_platform_data ip7500media_gpio_u18_platform_data = { -+ .gpio_base = IP7500MEDIA_U18_BASE, -+}; -+ -+/****************************************************************************** -+ * Devices on the I2C bus -+ * -+ * BEWARE of changing the order of things in this array as we depend on -+ * certain things to be in certain places. -+ */ -+static struct i2c_board_info __initdata ip7500media_i2c_board_info[] = { -+ /* -+ * U6, CS4350 DAC, address 0x4B -+ */ -+ { -+ .type = "cs4350", -+ .addr = 0x4B, -+ }, -+ -+ /* -+ * U14, S35390A RTC, address 0x30 -+ */ -+ { -+ .type = "s35390a", -+ .addr = 0x30, -+ }, -+ -+ /* -+ * U15, MAX7310 IO expander, 8 bits, address 0x18 -+ * IO0: User I/O (J16-1) (Left) IO4: User I/O (J16-5) (Enter) -+ * IO1: User I/O (J16-2) (Right) IO5: User I/O (J16-6) (Menu) -+ * IO2: User I/O (J16-3) (Up) IO6: User I/O (J16-7) (Back) -+ * IO3: User I/O (J16-4) (Down) IO7: User I/O (J16-8) -+ */ -+ { -+ .type = "ubicom32in_max7310", -+ .addr = 0x18, -+ .platform_data = &ip7500media_ubicom32input_i2c_u15_platform_data, -+ }, -+ -+ /* -+ * U16, MAX7310 IO expander, 8 bits, address 0x1C -+ * IO8 : User I/O (J16-9) IO12: User I/O (J16-17) -+ * IO9 : User I/O (J16-10) IO13: User I/O (J16-18) -+ * IO10: User I/O (J16-15) IO14: User I/O (J16-19) -+ * IO11: User I/O (J16-16) IO15: User I/O (J16-20) -+ */ -+ { -+ .type = "max7310", -+ .addr = 0x1C, -+ .platform_data = &ip7500media_gpio_u16_platform_data, -+ }, -+ -+ /* -+ * U17, MAX7310 IO expander, 8 bits, address 0x1A -+ * IO16: SDIO1A_WP IO20: SD1A_PWREN -+ * IO17: SDIO1B_WP IO21: SD1B_PWREN -+ * IO18: SDIO2_CD IO22: SD2_PWREN -+ * IO19: SDIO2_WP IO23: SDIO1A_CD -+ * -+ */ -+ { -+ .type = "max7310", -+ .addr = 0x1A, -+ .platform_data = &ip7500media_gpio_u17_platform_data, -+ }, -+ -+ /* -+ * U18, MAX7310 IOB expander, 8 bits, address 0x1E -+ * IO24: SDIO1B_CD IO28: User I/O TP6 -+ * IO25: User I/O TP9 IO29: User I/O TP5 -+ * IO26: User I/O TP8 IO30: User I/O TP4 -+ * IO27: User I/O TP7 IO31: User I/O TP3 -+ */ -+ { -+ .type = "max7310", -+ .addr = 0x1E, -+ .platform_data = &ip7500media_gpio_u18_platform_data, -+ }, -+}; -+ -+/* -+ * I2C bus on the board, SDA PE4, SCL PE5 -+ */ -+static struct i2c_gpio_platform_data ip7500media_i2c_data = { -+ .sda_pin = GPIO_RE_4, -+ .scl_pin = GPIO_RE_5, -+ .sda_is_open_drain = 0, -+ .scl_is_open_drain = 0, -+ .udelay = 50, -+}; -+ -+static struct platform_device ip7500media_i2c_device = { -+ .name = "i2c-gpio", -+ .id = 0, -+ .dev = { -+ .platform_data = &ip7500media_i2c_data, -+ }, -+}; -+ -+/* -+ * List of all devices in our system -+ */ -+static struct platform_device *ip7500media_devices[] __initdata = { -+ &ip7500media_i2c_device, -+ &ip7500media_lcd_device, -+ &ip7500media_backlight_device, -+}; -+ -+/* -+ * ip7500media_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7500media_init(void) -+{ -+ struct platform_device *audio_dev; -+ -+ board_init(); -+ -+ ubi_gpio_init(); -+ -+#ifdef CONFIG_UIO_UBICOM32RING -+ ring_tio_init("decoder_ring"); -+#endif -+ -+ /* -+ * Start up the video driver first -+ */ -+ vdc_tio_init(); -+ -+ /* -+ * Register all of the devices we have on this board -+ */ -+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__); -+ platform_add_devices(ip7500media_devices, ARRAY_SIZE(ip7500media_devices)); -+ -+ /* -+ * Allocate the audio driver if we can -+ */ -+ audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0); -+ if (audio_dev) { -+ ip7500media_i2c_board_info[0].platform_data = audio_dev; -+ } -+ -+ /* -+ * Register all of the devices which sit on the I2C bus -+ */ -+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__); -+ i2c_register_board_info(0, ip7500media_i2c_board_info, ARRAY_SIZE(ip7500media_i2c_board_info)); -+ -+ /* -+ * We have to initialize the SDIO after the I2C IOB gets setup. SDIO is initialized in -+ * ip7500media_u17_setup -+ */ -+ -+ return 0; -+} -+ -+arch_initcall(ip7500media_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/board-ip7500module.c -@@ -0,0 +1,60 @@ -+/* -+ * arch/ubicom32/mach-ip7k/board-ip7500module.c -+ * Support for IP7500 CPU module board. -+ * -+ * This file supports the IP7500 CPU module board: -+ * 8007-0510 Rev 1.0 -+ * 8007-0510A Rev 1.0 (with ethernet) -+ * -+ * DIP Switch SW2 configuration: (*) default -+ * POS 1: on(*) = PCI enabled, off = PCI disabled -+ * POS 2: on(*) = TTYX => PA6, off = TTYX => PF12 -+ * POS 3: on(*) = TTYY => PA7, off = TTYY => PF15 -+ * POS 4: unused -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/gpio.h> -+#include <asm/board.h> -+#include <asm/machdep.h> -+#include <asm/ring_tio.h> -+#include <asm/vdc_tio.h> -+ -+/* -+ * ip7500module_init -+ * Called to add the devices which we have on this board -+ */ -+static int __init ip7500module_init(void) -+{ -+ board_init(); -+ -+ ubi_gpio_init(); -+ -+ return 0; -+} -+ -+arch_initcall(ip7500module_init); -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/Kconfig -@@ -0,0 +1,132 @@ -+config IP7145DPF -+ bool "IP7145DPF" -+ select UBICOM32_V4 -+ select UBICOM_INPUT -+ select UBICOM_INPUT_I2C -+ select RTC_CLASS -+ select RTC_DRV_S35390A -+ select I2C -+ select I2C_GPIO -+ select GPIO_PCA953X -+ select FB -+ select FB_UBICOM32 -+ select BACKLIGHT_LCD_SUPPORT -+ select LCD_CLASS_DEVICE -+ select LCD_UBICOM32 -+ select BACKLIGHT_CLASS_DEVICE -+ select BACKLIGHT_UBICOM32 -+ select SND_UBI32 -+ select MMC_UBICOM32 -+ select MMC -+ select MMC_BLOCK -+ select BRD_64MB -+ help -+ IP7145 Digital Picture Frame reference design, supports: -+ 8007-0410 v1.0 -+ -+config IP7160RGW -+ bool "IP7160RGW" -+ select UBICOM32_V4 -+ select UBICOM_INPUT -+ select NEW_LEDS -+ select LEDS_CLASS -+ select LEDS_GPIO -+ select BRD_64MB -+ select SPI -+ select SPI_UBICOM32_GPIO -+ select VLAN_8021Q -+ select UBICOM_SWITCH -+ select UBICOM_SWITCH_BCM539X -+ help -+ Ubicom IP7160 RGW Eval, supports: -+ 8007-0110 v1.0 -+ 8007-0111 v1.1 -+ 8007-0112 v1.2 -+ -+config IP7160BRINGUP -+ bool "IP7160BRINGUP" -+ select UBICOM32_V4 -+ select NEW_LEDS -+ select LEDS_CLASS -+ select LEDS_GPIO -+ select BRD_64MB -+ help -+ Ubicom IP7160 Bringup, supports: -+ 8007-0010 v1.0 -+ -+config IP7160DPF -+ bool "IP7160DPF" -+ select UBICOM32_V4 -+ select I2C -+ select I2C_GPIO -+ select FB -+ select FB_UBICOM32 -+ select BACKLIGHT_LCD_SUPPORT -+ select BACKLIGHT_CLASS_DEVICE -+ select SND_UBI32 -+ select SND_UBI32_AUDIO_CS4350 -+ select UBICOM_HID -+ select BRD_64MB -+ help -+ IP7160 Digital Picture Frame board, supports: -+ 8007-0211 Rev 1.1 -+ -+config IP7500MODULE -+ bool "IP7500MODULE" -+ select UBICOM32_V4 -+ select BRD_128MB -+ help -+ Ubicom IP7500 CPU Module board, supports: -+ 8007-0510 v1.0 -+ 8007-0510A v1.0 -+ -+ Please see ip7500module.c for more details. -+ -+config IP7500AV -+ bool "IP7500AV" -+ select UBICOM32_V4 -+ select BRD_128MB -+ select I2C -+ select I2C_GPIO -+ select SND_UBI32 -+ select SND_UBI32_AUDIO_CS4384 -+ select FB -+ select FB_UBICOM32 -+ help -+ Ubicom IP7500 Audio Video board, supports: -+ 8007-0810 v1.0 -+ -+ With Ubicom IP7500 CPU Module board: -+ 8007-0510 v1.0 -or- -+ 8007-0510A v1.0 -+ -+ Please see ip7500av.c for more details. -+ -+config IP7500MEDIA -+ bool "IP7500MEDIA" -+ select UBICOM32_V4 -+ select UBICOM_INPUT_I2C -+ select RTC_CLASS -+ select RTC_DRV_S35390A -+ select I2C -+ select I2C_GPIO -+ select GPIO_PCA953X -+ select FB -+ select FB_UBICOM32 -+ select BACKLIGHT_LCD_SUPPORT -+ select LCD_CLASS_DEVICE -+ select LCD_UBICOM32 -+ select BACKLIGHT_CLASS_DEVICE -+ select BACKLIGHT_UBICOM32 -+ select SND_UBI32 -+ select SND_UBI32_AUDIO_CS4350 -+ select MMC_UBICOM32 -+ select MMC -+ select MMC_BLOCK -+ select BRD_128MB -+ help -+ IP7500 Media Board w/ IP7500 CPU Module board, supports: -+ 8007-0610 v1.0 w/ 8007-0510 v1.0 -+ -+ Please see ip7500media.c for more details. -+ ---- /dev/null -+++ b/arch/ubicom32/mach-ip7k/Makefile -@@ -0,0 +1,35 @@ -+# -+# arch/ubicom32/mach-ip7k/Makefile -+# Makefile for ip7k based boards. -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+obj-$(CONFIG_IP7145DPF) += board-ip7145dpf.o -+obj-$(CONFIG_IP7160RGW) += board-ip7160rgw.o -+obj-$(CONFIG_IP7160BRINGUP) += board-ip7160bringup.o -+obj-$(CONFIG_IP7160DPF) += board-ip7160dpf.o -+obj-$(CONFIG_IP7500MODULE) += board-ip7500module.o -+obj-$(CONFIG_IP7500MEDIA) += board-ip7500media.o -+obj-$(CONFIG_IP7500AV) += board-ip7500av.o ---- /dev/null -+++ b/arch/ubicom32/Makefile -@@ -0,0 +1,103 @@ -+# -+# arch/ubicom32/Makefile -+# <TODO: Replace with short file description> -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+KBUILD_DEFCONFIG := -+ -+# setup the machine name and machine dependent settings -+machine-$(CONFIG_UBICOM32_V3) := ip5k -+machine-$(CONFIG_UBICOM32_V4) := ip7k -+MACHINE := $(machine-y) -+export MACHINE -+ -+model-$(CONFIG_RAMKERNEL) := ram -+model-$(CONFIG_ROMKERNEL) := rom -+MODEL := $(model-y) -+export MODEL -+ -+CPUCLASS := $(cpuclass-y) -+ -+export CPUCLASS -+ -+# -+# We want the core kernel built using the fastcall ABI but modules need -+# to be built using the slower calling convention because they could be -+# loaded out of range for fast calls. -+# -+CFLAGS_KERNEL += -mfastcall -+CFLAGS_MODULE += -mno-fastcall -+ -+# -+# Some CFLAG additions based on specific CPU type. -+# -+cflags-$(CONFIG_UBICOM32_V3) := -march=ubicom32v3 -mno-fdpic -DIP5000 -+cflags-$(CONFIG_UBICOM32_V4) := -march=ubicom32v4 -mno-fdpic -DIP7000 -+ -+ldflags-$(CONFIG_LINKER_RELAXATION) := --relax -+LDFLAGS_vmlinux := $(ldflags-y) -+ -+GCCLIBDIR := $(dir $(shell $(CC) $(cflags-y) -print-libgcc-file-name)) -+ -+KBUILD_CFLAGS += $(cflags-y) -ffunction-sections -+KBUILD_AFLAGS += $(cflags-y) -+ -+KBUILD_CFLAGS += -D__linux__ -Dlinux -+KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" -+ -+# include any machine specific directory -+ifneq ($(machine-y),) -+core-y += arch/$(ARCH)/mach-$(MACHINE)/ -+endif -+ -+head-y := arch/$(ARCH)/kernel/head.o -+ -+core-y += arch/$(ARCH)/kernel/ \ -+ arch/$(ARCH)/mm/ \ -+ arch/$(ARCH)/crypto/ \ -+ arch/$(ARCH)/mach-common/ -+ -+drivers-$(CONFIG_OPROFILE) += arch/ubicom32/oprofile/ -+ -+libs-y += arch/$(ARCH)/lib/ -+ -+archclean: -+ -+# make sure developer has selected a valid board -+ifeq ($(CONFIG_NOBOARD),y) -+# $(error have to select a valid board file $(CONFIG_NOBOARD), please run kernel config again) -+_all: config_board_error -+endif -+ -+config_board_error: -+ @echo "*************************************************" -+ @echo "You have not selected a proper board." -+ @echo "Please run menuconfig (or config) against your" -+ @echo "kernel and choose your board under Processor" -+ @echo "options" -+ @echo "*************************************************" -+ @exit 1 -+ ---- /dev/null -+++ b/arch/ubicom32/mm/fault.c -@@ -0,0 +1,81 @@ -+/* -+ * arch/ubicom32/mm/fault.c -+ * Ubicom32 architecture page fault implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, -+ * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) -+ * -+ * Based on: -+ * -+ * linux/arch/m68k/mm/fault.c -+ * -+ * Copyright (C) 1995 Hamish Macdonald -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/mman.h> -+#include <linux/mm.h> -+#include <linux/kernel.h> -+#include <linux/ptrace.h> -+ -+#include <asm/system.h> -+#include <asm/pgtable.h> -+ -+extern void die_if_kernel(char *, struct pt_regs *, long); -+ -+/* -+ * This routine handles page faults. It determines the problem, and -+ * then passes it off to one of the appropriate routines. -+ * -+ * error_code: -+ * bit 0 == 0 means no page found, 1 means protection fault -+ * bit 1 == 0 means read, 1 means write -+ * -+ * If this routine detects a bad access, it returns 1, otherwise it -+ * returns 0. -+ */ -+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, -+ unsigned long error_code) -+{ -+#ifdef DEBUG -+ printk (KERN_DEBUG "regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n", -+ regs->sr, regs->pc, address, error_code); -+#endif -+ -+ /* -+ * Oops. The kernel tried to access some bad page. We'll have to -+ * terminate things with extreme prejudice. -+ */ -+ if ((unsigned long) address < PAGE_SIZE) { -+ printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference"); -+ } else -+ printk(KERN_ALERT "Unable to handle kernel access"); -+ printk(KERN_ALERT " at virtual address %08lx\n",address); -+ die_if_kernel("Oops", regs, error_code); -+ do_exit(SIGKILL); -+ -+ return 1; -+} -+ ---- /dev/null -+++ b/arch/ubicom32/mm/init.c -@@ -0,0 +1,261 @@ -+/* -+ * arch/ubicom32/mm/init.c -+ * Ubicom32 architecture virtual memory initialization. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, -+ * Kenneth Albanowski <kjahds@kjahds.com>, -+ * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) -+ * -+ * Based on: -+ * -+ * linux/arch/m68k/mm/init.c -+ * -+ * Copyright (C) 1995 Hamish Macdonald -+ * -+ * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) -+ * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/signal.h> -+#include <linux/sched.h> -+#include <linux/kernel.h> -+#include <linux/errno.h> -+#include <linux/string.h> -+#include <linux/types.h> -+#include <linux/ptrace.h> -+#include <linux/mman.h> -+#include <linux/mm.h> -+#include <linux/swap.h> -+#include <linux/init.h> -+#include <linux/highmem.h> -+#include <linux/pagemap.h> -+#include <linux/bootmem.h> -+#include <linux/slab.h> -+ -+#include <asm/setup.h> -+#include <asm/segment.h> -+#include <asm/page.h> -+#include <asm/pgtable.h> -+#include <asm/system.h> -+#include <asm/machdep.h> -+#include <asm/ocm-alloc.h> -+ -+#undef DEBUG -+ -+extern void die_if_kernel(char *,struct pt_regs *,long); -+extern void free_initmem(void); -+ -+/* -+ * BAD_PAGE is the page that is used for page faults when linux -+ * is out-of-memory. Older versions of linux just did a -+ * do_exit(), but using this instead means there is less risk -+ * for a process dying in kernel mode, possibly leaving a inode -+ * unused etc.. -+ * -+ * BAD_PAGETABLE is the accompanying page-table: it is initialized -+ * to point to BAD_PAGE entries. -+ * -+ * ZERO_PAGE is a special page that is used for zero-initialized -+ * data and COW. -+ */ -+static unsigned long empty_bad_page_table; -+ -+static unsigned long empty_bad_page; -+ -+unsigned long empty_zero_page; -+ -+void show_mem(void) -+{ -+ unsigned long i; -+ int free = 0, total = 0, reserved = 0, shared = 0; -+ int cached = 0; -+ -+ printk(KERN_INFO "\nMem-info:\n"); -+ show_free_areas(); -+ i = max_mapnr; -+ while (i-- > 0) { -+ total++; -+ if (PageReserved(mem_map+i)) -+ reserved++; -+ else if (PageSwapCache(mem_map+i)) -+ cached++; -+ else if (!page_count(mem_map+i)) -+ free++; -+ else -+ shared += page_count(mem_map+i) - 1; -+ } -+ printk(KERN_INFO "%d pages of RAM\n",total); -+ printk(KERN_INFO "%d free pages\n",free); -+ printk(KERN_INFO "%d reserved pages\n",reserved); -+ printk(KERN_INFO "%d pages shared\n",shared); -+ printk(KERN_INFO "%d pages swap cached\n",cached); -+} -+ -+extern unsigned long memory_start; -+extern unsigned long memory_end; -+extern char __ocm_free_begin; -+extern char __ocm_free_end; -+ -+/* -+ * paging_init() continues the virtual memory environment setup which -+ * was begun by the code in arch/head.S. -+ * The parameters are pointers to where to stick the starting and ending -+ * addresses of available kernel virtual memory. -+ */ -+void __init paging_init(void) -+{ -+ /* -+ * Make sure start_mem is page aligned, otherwise bootmem and -+ * page_alloc get different views of the world. -+ */ -+#ifdef DEBUG -+ unsigned long start_mem = PAGE_ALIGN(memory_start); -+#endif -+ unsigned long end_mem = memory_end & PAGE_MASK; -+ -+#ifdef DEBUG -+ printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n", -+ start_mem, end_mem); -+#endif -+ -+ /* -+ * Initialize the bad page table and bad page to point -+ * to a couple of allocated pages. -+ */ -+ empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); -+ empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); -+ empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); -+ memset((void *)empty_zero_page, 0, PAGE_SIZE); -+ -+ /* -+ * TODO: enable setting up for user memory management interface. -+ */ -+ -+#ifdef DEBUG -+ printk (KERN_DEBUG "before free_area_init\n"); -+ -+ printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", -+ start_mem, end_mem); -+#endif -+ -+ { -+ unsigned long zones_size[MAX_NR_ZONES] = {0, }; -+#ifdef CONFIG_ZONE_DMA -+ zones_size[ZONE_DMA] = OCMSIZE >> PAGE_SHIFT; -+#endif -+ zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; -+#ifdef CONFIG_HIGHMEM -+ zones_size[ZONE_HIGHMEM] = 0; -+#endif -+ free_area_init(zones_size); -+ } -+} -+ -+void __init mem_init(void) -+{ -+ int codek = 0, datak = 0, initk = 0; -+ unsigned long tmp; -+ extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end; -+ unsigned long len = CONFIG_RAMSIZE + OCMSIZE; -+ unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ -+ unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ -+ -+#ifdef DEBUG -+ printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem); -+#endif -+ -+ end_mem &= PAGE_MASK; -+ high_memory = (void *) end_mem; -+ -+ start_mem = PAGE_ALIGN(start_mem); -+ max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT; -+ -+ /* this will put all memory onto the freelists */ -+#ifdef CONFIG_ZONE_DMA -+ { -+ unsigned long ocm_free_begin = (unsigned long)&__ocm_free_begin; -+ unsigned long ocm_free_end = (unsigned long)&__ocm_free_end; -+ unsigned long zone_dma_begin = (ocm_free_begin + PAGE_SIZE - 1) & PAGE_MASK; -+ unsigned long zone_dma_end = ocm_free_end & PAGE_MASK; -+ if (zone_dma_end > zone_dma_begin) -+ free_bootmem(zone_dma_begin, zone_dma_end-zone_dma_begin); -+ } -+#endif -+ totalram_pages = free_all_bootmem(); -+ -+ codek = (&_etext - &_stext) >> 10; -+ datak = (&_ebss - &_sdata) >> 10; -+ initk = (&__init_begin - &__init_end) >> 10; -+ -+ tmp = nr_free_pages() << PAGE_SHIFT; -+ printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n", -+ tmp >> 10, -+ len >> 10, -+ codek, -+ datak -+ ); -+ -+} -+ -+#ifdef CONFIG_BLK_DEV_INITRD -+void free_initrd_mem(unsigned long start, unsigned long end) -+{ -+ int pages = 0; -+ for (; start < end; start += PAGE_SIZE) { -+ ClearPageReserved(virt_to_page(start)); -+ init_page_count(virt_to_page(start)); -+ free_page(start); -+ totalram_pages++; -+ pages++; -+ } -+ printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages); -+} -+#endif -+ -+void -+free_initmem() -+{ -+#ifdef CONFIG_RAMKERNEL -+ unsigned long addr; -+ extern char __init_begin, __init_end; -+ /* -+ * The following code should be cool even if these sections -+ * are not page aligned. -+ */ -+ addr = PAGE_ALIGN((unsigned long)(&__init_begin)); -+ /* next to check that the page we free is not a partial page */ -+ for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { -+ ClearPageReserved(virt_to_page(addr)); -+ init_page_count(virt_to_page(addr)); -+ free_page(addr); -+ totalram_pages++; -+ } -+ printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", -+ (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, -+ (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), -+ (int)(addr - PAGE_SIZE)); -+#endif -+} -+ ---- /dev/null -+++ b/arch/ubicom32/mm/kmap.c -@@ -0,0 +1,79 @@ -+/* -+ * arch/ubicom32/mm/kmap.c -+ * Ubicom32 architecture non-mmu ioremap and friends implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2000 Lineo, <davidm@snapgear.com> -+ * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com> -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/mm.h> -+#include <linux/kernel.h> -+#include <linux/string.h> -+#include <linux/types.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+ -+#include <asm/setup.h> -+#include <asm/segment.h> -+#include <asm/page.h> -+#include <asm/pgalloc.h> -+#include <asm/io.h> -+#include <asm/system.h> -+ -+#undef DEBUG -+ -+/* -+ * Map some physical address range into the kernel address space. -+ */ -+void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) -+{ -+ return (void *)physaddr; -+} -+ -+/* -+ * Unmap a ioremap()ed region again. -+ */ -+void iounmap(void *addr) -+{ -+} -+ -+/* -+ * __iounmap unmaps nearly everything, so be careful -+ * it doesn't free currently pointer/page tables anymore but it -+ * wans't used anyway and might be added later. -+ */ -+void __iounmap(void *addr, unsigned long size) -+{ -+} -+ -+/* -+ * Set new cache mode for some kernel address space. -+ * The caller must push data for that range itself, if such data may already -+ * be in the cache. -+ */ -+void kernel_set_cachemode(void *addr, unsigned long size, int cmode) -+{ -+} ---- /dev/null -+++ b/arch/ubicom32/mm/Makefile -@@ -0,0 +1,32 @@ -+# -+# arch/ubicom32/mm/Makefile -+# <TODO: Replace with short file description> -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+# -+# Makefile for the linux m68knommu specific parts of the memory manager. -+# -+ -+obj-y += init.o fault.o memory.o kmap.o ocm-alloc.o ---- /dev/null -+++ b/arch/ubicom32/mm/memory.c -@@ -0,0 +1,59 @@ -+/* -+ * arch/ubicom32/mm/memory.c -+ * Ubicom32 architecture kernel_map() implementation. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>, -+ * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) -+ * -+ * Based on: -+ * -+ * linux/arch/m68k/mm/memory.c -+ * -+ * Copyright (C) 1995 Hamish Macdonald -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/mm.h> -+#include <linux/kernel.h> -+#include <linux/string.h> -+#include <linux/types.h> -+#include <linux/slab.h> -+ -+#include <asm/segment.h> -+#include <asm/page.h> -+#include <asm/pgtable.h> -+#include <asm/system.h> -+ -+/* -+ * Map some physical address range into the kernel address space. -+ * The code is copied and adapted from map_chunk(). -+ */ -+ -+unsigned long kernel_map(unsigned long paddr, unsigned long size, -+ int nocacheflag, unsigned long *memavailp ) -+{ -+ return paddr; -+} -+ ---- /dev/null -+++ b/arch/ubicom32/mm/ocm-alloc.c -@@ -0,0 +1,439 @@ -+/* -+ * arch/ubicom32/mm/ocm-alloc.c -+ * OCM allocator for Uibcom32 On-Chip memory -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright 2004-2008 Analog Devices Inc. -+ * -+ * Based on: -+ * -+ * arch/blackfin/mm/sram-alloc.c -+ * -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/types.h> -+#include <linux/miscdevice.h> -+#include <linux/ioport.h> -+#include <linux/fcntl.h> -+#include <linux/init.h> -+#include <linux/poll.h> -+#include <linux/proc_fs.h> -+#include <linux/mutex.h> -+#include <linux/rtc.h> -+#include <asm/ocm-alloc.h> -+ -+#if 0 -+#define DEBUGP printk -+#else -+#define DEBUGP(fmt, a...) -+#endif -+/* -+ * the data structure for OCM heap pieces -+ */ -+struct ocm_piece { -+ void *paddr; -+ int size; -+ pid_t pid; -+ struct ocm_piece *next; -+}; -+ -+/* -+ * struct ocm_heap -+ */ -+struct ocm_heap { -+ struct ocm_piece free_head; -+ struct ocm_piece used_head; -+ struct mutex lock; -+}; -+ -+static struct ocm_heap ocm_inst_heap; -+ -+/* -+ * OCM area for storing code -+ */ -+extern asmlinkage void *__ocm_inst_heap_begin; -+extern asmlinkage void *__ocm_inst_heap_end; -+#define OCM_INST_HEAP_BEGIN ((unsigned int)&__ocm_inst_heap_begin) -+#define OCM_INST_HEAP_END ((unsigned int)&__ocm_inst_heap_end) -+#define OCM_INST_HEAP_LENGTH (OCM_INST_HEAP_END - OCM_INST_HEAP_BEGIN) -+ -+static struct kmem_cache *ocm_piece_cache; -+ -+/* -+ * _ocm_heap_init() -+ */ -+static int __init _ocm_heap_init(struct ocm_heap *ocmh, -+ unsigned int start, -+ unsigned int size) -+{ -+ ocmh->free_head.next = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL); -+ -+ if (!ocmh->free_head.next) -+ return -1; -+ -+ ocmh->free_head.next->paddr = (void *)start; -+ ocmh->free_head.next->size = size; -+ ocmh->free_head.next->pid = 0; -+ ocmh->free_head.next->next = 0; -+ -+ ocmh->used_head.next = NULL; -+ -+ /* mutex initialize */ -+ mutex_init(&ocmh->lock); -+ -+ return 0; -+} -+ -+/* -+ * _ocm_alloc_init() -+ * -+ * starts the ocm heap(s) -+ */ -+static int __init _ocm_alloc_init(void) -+{ -+ if (OCM_INST_HEAP_LENGTH) { -+ ocm_piece_cache = kmem_cache_create("ocm_piece_cache", -+ sizeof(struct ocm_piece), -+ 0, SLAB_PANIC, NULL); -+ -+ if (_ocm_heap_init(&ocm_inst_heap, -+ OCM_INST_HEAP_BEGIN, -+ OCM_INST_HEAP_LENGTH) == 0) -+ printk(KERN_INFO "OCM Instruction Heap %d KB\n", -+ OCM_INST_HEAP_LENGTH >> 10); -+ else -+ printk(KERN_INFO "Failed to initialize OCM " -+ "Instruction Heap\n"); -+ -+ } else -+ printk(KERN_INFO "No space available for OCM " -+ "Instruction Heap\n"); -+ -+ return 0; -+} -+pure_initcall(_ocm_alloc_init); -+ -+/* -+ * _ocm_alloc() -+ * generic alloc a block in the ocm heap, if successful -+ * returns the pointer. -+ */ -+static void *_ocm_alloc(size_t size, pid_t pid, struct ocm_heap *ocmheap) -+{ -+ struct ocm_piece *pslot, *plast, *pavail; -+ struct ocm_piece *pfree_head = &ocmheap->free_head; -+ struct ocm_piece *pused_head = &ocmheap->used_head; -+ -+ if (size <= 0 || !pfree_head || !pused_head) -+ return NULL; -+ -+ /* Align the size */ -+ size = (size + 3) & ~3; -+ -+ pslot = pfree_head->next; -+ plast = pfree_head; -+ -+ /* -+ * search an available piece slot -+ */ -+ while (pslot != NULL && size > pslot->size) { -+ plast = pslot; -+ pslot = pslot->next; -+ } -+ -+ if (!pslot) -+ return NULL; -+ -+ if (pslot->size == size) { -+ /* -+ * Unlink this block from the list -+ */ -+ plast->next = pslot->next; -+ pavail = pslot; -+ } else { -+ /* -+ * Split this block in two. -+ */ -+ pavail = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL); -+ -+ if (!pavail) -+ return NULL; -+ -+ pavail->paddr = pslot->paddr; -+ pavail->size = size; -+ pslot->paddr += size; -+ pslot->size -= size; -+ } -+ -+ pavail->pid = pid; -+ -+ pslot = pused_head->next; -+ plast = pused_head; -+ -+ /* -+ * insert new piece into used piece list !!! -+ */ -+ while (pslot != NULL && pavail->paddr < pslot->paddr) { -+ plast = pslot; -+ pslot = pslot->next; -+ } -+ -+ pavail->next = pslot; -+ plast->next = pavail; -+ -+ DEBUGP("_ocm_alloc %d bytes at %p from in %p", -+ size, pavail->paddr, ocmheap); -+ -+ return pavail->paddr; -+} -+ -+#if 0 -+/* Allocate the largest available block. */ -+static void *_ocm_alloc_max(struct ocm_heap *ocmheap, -+ unsigned long *psize) -+{ -+ struct ocm_piece *pfree_head = &ocmheap->free_head; -+ struct ocm_piece *pslot, *pmax; -+ -+ pmax = pslot = pfree_head->next; -+ -+ /* search an available piece slot */ -+ while (pslot != NULL) { -+ if (pslot->size > pmax->size) -+ pmax = pslot; -+ pslot = pslot->next; -+ } -+ -+ if (!pmax) -+ return NULL; -+ -+ *psize = pmax->size; -+ -+ return _ocm_alloc(*psize, ocmheap); -+} -+#endif -+ -+/* -+ * _ocm_free() -+ * generic free a block in the ocm heap, if successful -+ */ -+static int _ocm_free(const void *addr, -+ struct ocm_heap *ocmheap) -+{ -+ struct ocm_piece *pslot, *plast, *pavail; -+ struct ocm_piece *pfree_head = &ocmheap->free_head; -+ struct ocm_piece *pused_head = &ocmheap->used_head; -+ -+ /* search the relevant memory slot */ -+ pslot = pused_head->next; -+ plast = pused_head; -+ -+ /* search an available piece slot */ -+ while (pslot != NULL && pslot->paddr != addr) { -+ plast = pslot; -+ pslot = pslot->next; -+ } -+ -+ if (!pslot) { -+ DEBUGP("_ocm_free %p not found in %p", addr, ocmheap); -+ return -1; -+ } -+ DEBUGP("_ocm_free %p from in %p", addr, ocmheap); -+ -+ plast->next = pslot->next; -+ pavail = pslot; -+ pavail->pid = 0; -+ -+ /* insert free pieces back to the free list */ -+ pslot = pfree_head->next; -+ plast = pfree_head; -+ -+ while (pslot != NULL && addr > pslot->paddr) { -+ plast = pslot; -+ pslot = pslot->next; -+ } -+ -+ if (plast != pfree_head && -+ plast->paddr + plast->size == pavail->paddr) { -+ plast->size += pavail->size; -+ kmem_cache_free(ocm_piece_cache, pavail); -+ } else { -+ pavail->next = plast->next; -+ plast->next = pavail; -+ plast = pavail; -+ } -+ -+ if (pslot && plast->paddr + plast->size == pslot->paddr) { -+ plast->size += pslot->size; -+ plast->next = pslot->next; -+ kmem_cache_free(ocm_piece_cache, pslot); -+ } -+ -+ return 0; -+} -+ -+/* -+ * ocm_inst_alloc() -+ * -+ * allocates a block of size in the ocm instrction heap, if -+ * successful returns address allocated. -+ */ -+void *ocm_inst_alloc(size_t size, pid_t pid) -+{ -+ void *addr; -+ -+ if (!OCM_INST_HEAP_LENGTH) -+ return NULL; -+ -+ -+ mutex_lock(&ocm_inst_heap.lock); -+ -+ addr = _ocm_alloc(size, pid, &ocm_inst_heap); -+ -+ mutex_unlock(&ocm_inst_heap.lock); -+ -+ return addr; -+} -+EXPORT_SYMBOL(ocm_inst_alloc); -+ -+/* -+ * ocm_inst_free() -+ * free a block in the ocm instrction heap, returns 0 if successful. -+ */ -+int ocm_inst_free(const void *addr) -+{ -+ int ret; -+ -+ if (!OCM_INST_HEAP_LENGTH) -+ return -1; -+ -+ mutex_lock(&ocm_inst_heap.lock); -+ -+ ret = _ocm_free(addr, &ocm_inst_heap); -+ -+ mutex_unlock(&ocm_inst_heap.lock); -+ -+ return ret; -+} -+EXPORT_SYMBOL(ocm_inst_free); -+ -+/* -+ * ocm_free() -+ * free a block in one of the ocm heaps, returns 0 if successful. -+ */ -+int ocm_free(const void *addr) -+{ -+ if (addr >= (void *)OCM_INST_HEAP_BEGIN -+ && addr < (void *)(OCM_INST_HEAP_END)) -+ return ocm_inst_free(addr); -+ else -+ return -1; -+} -+EXPORT_SYMBOL(ocm_free); -+ -+ -+#ifdef CONFIG_PROC_FS -+/* Need to keep line of output the same. Currently, that is 46 bytes -+ * (including newline). -+ */ -+static int _ocm_proc_read(char *buf, int *len, int count, const char *desc, -+ struct ocm_heap *ocmheap) -+{ -+ struct ocm_piece *pslot; -+ struct ocm_piece *pfree_head = &ocmheap->free_head; -+ struct ocm_piece *pused_head = &ocmheap->used_head; -+ -+ /* The format is the following -+ * --- OCM 123456789012345 Size PID State \n -+ * 12345678-12345678 1234567890 12345 1234567890\n -+ */ -+ int l; -+ l = sprintf(&buf[*len], "--- OCM %-15s Size PID State \n", -+ desc); -+ -+ *len += l; -+ count -= l; -+ -+ mutex_lock(&ocm_inst_heap.lock); -+ -+ /* -+ * search the relevant memory slot -+ */ -+ pslot = pused_head->next; -+ -+ while (pslot != NULL && count > 46) { -+ l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", -+ pslot->paddr, pslot->paddr + pslot->size, -+ pslot->size, pslot->pid, "ALLOCATED"); -+ -+ *len += l; -+ count -= l; -+ pslot = pslot->next; -+ } -+ -+ pslot = pfree_head->next; -+ -+ while (pslot != NULL && count > 46) { -+ l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", -+ pslot->paddr, pslot->paddr + pslot->size, -+ pslot->size, pslot->pid, "FREE"); -+ -+ *len += l; -+ count -= l; -+ pslot = pslot->next; -+ } -+ -+ mutex_unlock(&ocm_inst_heap.lock); -+ -+ return 0; -+} -+static int ocm_proc_read(char *buf, char **start, off_t offset, int count, -+ int *eof, void *data) -+{ -+ int len = 0; -+ -+ if (_ocm_proc_read(buf, &len, count - len, "Inst Heap", -+ &ocm_inst_heap)) -+ goto not_done; -+ *eof = 1; -+ not_done: -+ return len; -+} -+ -+static int __init sram_proc_init(void) -+{ -+ struct proc_dir_entry *ptr; -+ ptr = create_proc_entry("ocm", S_IFREG | S_IRUGO, NULL); -+ if (!ptr) { -+ printk(KERN_WARNING "unable to create /proc/ocm\n"); -+ return -1; -+ } -+ ptr->owner = THIS_MODULE; -+ ptr->read_proc = ocm_proc_read; -+ return 0; -+} -+late_initcall(sram_proc_init); -+#endif ---- /dev/null -+++ b/arch/ubicom32/oprofile/ipProf.h -@@ -0,0 +1,39 @@ -+#ifndef __IP_PROF_H__ -+#define __IP_PROF_H__ -+ -+/* This number MUST match what is used in the ultra configuration! */ -+#define IPPROFILETIO_MAX_SAMPLES 600 -+ -+/* Move to .h file used in both; avoid special types */ -+struct profile_sample { -+ unsigned int pc; /* PC value */ -+ unsigned int parent; /* a5 contents, to find the caller */ -+ unsigned char cond_codes; /* for branch prediction */ -+ unsigned char thread; /* I-blocked, D-blocked, -+ 4-bit thread number */ -+ unsigned short active; /* which threads are active - -+ for accurate counting */ -+ unsigned short blocked; /* which threads are blocked due to -+ I or D cache misses */ -+ unsigned int latency; /* CPU clocks since the last message -+ dispatch in this thread -+ (thread 0 only for now) */ -+}; -+ -+ -+struct profilenode { -+ struct devtree_node dn; -+ volatile unsigned char enabled; /* Is the tio enabled to -+ take samples? */ -+ volatile unsigned char busy; /* set when the samples -+ are being read */ -+ volatile unsigned int mask; /* Threads that change the MT_EN flag */ -+ volatile unsigned short rate; /* What is the sampling rate? */ -+ volatile unsigned short head; /* sample taker puts samples here */ -+ volatile unsigned short tail; /* packet filler takes samples here */ -+ volatile unsigned short count; /* number of valid samples */ -+ volatile unsigned short total; /* Total samples */ -+ struct profile_sample samples[IPPROFILETIO_MAX_SAMPLES]; -+}; -+ -+#endif ---- /dev/null -+++ b/arch/ubicom32/oprofile/Makefile -@@ -0,0 +1,37 @@ -+# -+# arch/ubicom32/Makefile -+# Makefile for Oprofile support on Ubicom32 -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+obj-$(CONFIG_OPROFILE) += oprofile.o -+ -+DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ -+ oprof.o cpu_buffer.o buffer_sync.o \ -+ event_buffer.o oprofile_files.o \ -+ oprofilefs.o oprofile_stats.o \ -+ timer_int.o ) -+ -+oprofile-y := $(DRIVER_OBJS) profile.o ---- /dev/null -+++ b/arch/ubicom32/oprofile/profile.c -@@ -0,0 +1,221 @@ -+/* -+ * arch/ubicom32/oprofile/profile.c -+ * Oprofile support for arch Ubicom32 -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) -+ * any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it will -+ * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty -+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, see -+ * <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+/** -+ * @file profile.c -+ * -+ * @remark Copyright 2002 OProfile authors -+ * @remark Read the file COPYING -+ * -+ * @author Hunyue Yau <hy@hy-research.com> -+ */ -+ -+#include <linux/oprofile.h> -+#include <linux/init.h> -+#include <linux/errno.h> -+#include <linux/interrupt.h> -+#include <linux/module.h> -+#include <linux/kernel.h> -+ -+#include <asm/devtree.h> -+#include <asm/thread.h> -+ -+/* For identifying userland vs kernel address */ -+#include <asm/stacktrace.h> -+#include "ipProf.h" -+ -+/* For communications with the backend */ -+static struct profilenode *profile_node; -+ -+/* Bitmask containing all Linux threads - as seen by the ROSR reg */ -+static unsigned long th_all_mask; -+ -+/* Lookup table to translate a hardware thread into a CPU identifier -+ * Table is indexed by the ROSR value which is assumed to be -+ * relatively small (0...15). -+ */ -+unsigned int cpu_map[THREAD_ARCHITECTURAL_MAX]; -+ -+static struct pt_regs regs; -+ -+/* -+ * For each sample returned, checked to see if they are relevant to -+ * us. This is necessary as the ubicom32 architecture has other software -+ * running outside of Linux. Only then, put the sample into the relevant -+ * cpu bins. -+ * -+ * To minimize overhead, a global mask with all possible threads of in -+ * interest to us is used as a first check. Then a second mask identifying -+ * the thread is used to obtain an identifier for that "CPU". -+ */ -+ -+/* -+ * ubicom32_build_cpu_th_mask() -+ * -+ * Build a lookup table for translation between hardware thread -+ * "ROSR" values and Linux CPU ids -+ * -+ * *** This gets executed on all CPUs at once! *** -+ */ -+static void ubicom32_build_cpu_th_mask(void *mask) -+{ -+ thread_t self = thread_get_self(); -+ unsigned long *th_m = mask; -+ -+ BUG_ON(self <= 0 || self >= THREAD_ARCHITECTURAL_MAX); -+ cpu_map[self] = smp_processor_id(); -+ -+ set_bit(self, th_m); -+} -+ -+/* -+ * profile_interrupt() -+ * -+ * Process samples returned from the profiler backend. The backend -+ * may return samples that are irrelevant to us or may even return -+ * multiple samples for the same CPU. Note that the sames may be -+ * for ANY cpu. At this time, this is unique and to support this requires -+ * Oprofile to expose an interface to accept the CPU that the same came -+ * frome. -+ */ -+static irqreturn_t profile_interrupt(int irq, void *arg) -+{ -+ int i, buf_entry; -+ int is_kernel; -+ unsigned int bit_th; -+ unsigned int th; -+ -+ if (!(profile_node->enabled) || profile_node->count < 0) { -+ printk(KERN_WARNING -+ "Unexpected interrupt, no samples or not enabled!\n"); -+ return IRQ_HANDLED; -+ } -+ -+ profile_node->busy = 1; /* Keep backend out */ -+ -+ for (i = 0; i < profile_node->count; i++) { -+ buf_entry = profile_node->tail; -+ profile_node->tail++; -+ profile_node->tail %= IPPROFILETIO_MAX_SAMPLES; -+ -+ /* Note - the "thread" ID is only the lower 4 bits */ -+ th = (0x0f & profile_node->samples[buf_entry].thread); -+ bit_th = (1 << th); -+ -+ if ((bit_th & th_all_mask) == 0) -+ continue; -+ -+ regs.pc = profile_node->samples[buf_entry].pc; -+ -+ is_kernel = ubicom32_is_kernel(regs.pc); -+ -+ oprofile_add_ext_sample_cpu(regs.pc, ®s, 0, is_kernel, -+ cpu_map[th]); -+ } -+ profile_node->count = 0; -+ profile_node->busy = 0; -+ -+ return IRQ_HANDLED; -+} -+ -+/* -+ * profile_start() -+ * -+ * Notification from oprofile to start the profiler -+ */ -+static int profile_start(void) -+{ -+ if (!profile_node) -+ return -1; -+ -+ profile_node->enabled = 1; -+ -+ return 0; -+} -+ -+/* -+ * profile_stop() -+ * -+ * Notification from oprofile to stop the profiler -+ */ -+static void profile_stop(void) -+{ -+ if (profile_node) -+ profile_node->enabled = 0; -+} -+ -+/* -+ * oprofile_arch_init() -+ * -+ * Attach to Oprofile after qualify the availability of the backend -+ * profiler support. -+ */ -+int __init oprofile_arch_init(struct oprofile_operations *ops) -+{ -+ int r = -ENODEV; -+ -+ profile_node = (struct profilenode *)devtree_find_node("profiler"); -+ -+ if (profile_node == NULL) { -+ printk(KERN_WARNING "Cannot find profiler node\n"); -+ return r; -+ } -+ -+ r = request_irq(profile_node->dn.recvirq, profile_interrupt, -+ IRQF_DISABLED, "profiler", NULL); -+ -+ if (r < 0) { -+ profile_node = NULL; -+ printk(KERN_WARNING "Cannot get profiler IRQ\n"); -+ return r; -+ } -+ -+ ops->start = profile_start; -+ ops->stop = profile_stop; -+ ops->cpu_type = "timer"; -+ -+ memset(cpu_map, 0, sizeof(cpu_map)); -+ -+ on_each_cpu(ubicom32_build_cpu_th_mask, &th_all_mask, 1); -+ -+ memset(®s, 0, sizeof(regs)); -+ -+ return r; -+} -+ -+/* -+ * oprofile_arch_exit() -+ * -+ * External call to take outselves out. -+ * Make sure backend is not running. -+ */ -+void oprofile_arch_exit(void) -+{ -+ BUG_ON(profile_node->enabled); -+} ---- a/drivers/char/hw_random/Kconfig -+++ b/drivers/char/hw_random/Kconfig -@@ -134,3 +134,16 @@ config HW_RANDOM_VIRTIO - - To compile this driver as a module, choose M here: the - module will be called virtio-rng. If unsure, say N. -+ -+config HW_RANDOM_UBICOM32 -+ tristate "Ubicom32 HW Random Number Generator support" -+ depends on HW_RANDOM && UBICOM32 -+ default HW_RANDOM -+ ---help--- -+ This driver provides kernel-side support for the Random Number -+ Generator hardware found on Ubicom32 processors. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called pasemi-rng. -+ -+ If unsure, say Y. ---- a/drivers/char/hw_random/Makefile -+++ b/drivers/char/hw_random/Makefile -@@ -14,3 +14,4 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx - obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o - obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o - obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o -+obj-$(CONFIG_HW_RANDOM_UBICOM32) += ubicom32-rng.o ---- /dev/null -+++ b/drivers/char/hw_random/ubicom32-rng.c -@@ -0,0 +1,105 @@ -+/* -+ * drivers/net/ubi32-eth.c -+ * Ubicom32 hardware random number generator driver. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/hw_random.h> -+#include <linux/delay.h> -+#include <asm/io.h> -+#include <asm/ip5000.h> -+ -+#define MODULE_NAME "ubicom32_rng" -+ -+static int ubicom32_rng_data_present(struct hwrng *rng, int wait) -+{ -+ int data, i; -+ -+ for (i = 0; i < 20; i++) { -+ data = *(int *)(TIMER_BASE + TIMER_TRN); -+ if (data || !wait) -+ break; -+ udelay(10); -+ } -+ return data; -+} -+ -+static int ubicom32_rng_data_read(struct hwrng *rng, u32 *data) -+{ -+ *data = *(int *)(TIMER_BASE + TIMER_TRN); -+ return 4; -+} -+ -+static int ubicom32_rng_init(struct hwrng *rng) -+{ -+ printk(KERN_INFO "ubicom32 rng init\n"); -+ *(int *)(TIMER_BASE + TIMER_TRN_CFG) = TIMER_TRN_CFG_ENABLE_OSC; -+ return 0; -+} -+ -+static void ubicom32_rng_cleanup(struct hwrng *rng) -+{ -+ printk(KERN_INFO "ubicom32 rng cleanup\n"); -+ *(int *)(TIMER_BASE + TIMER_TRN_CFG) = 0; -+} -+ -+static struct hwrng ubicom32_rng = { -+ .name = MODULE_NAME, -+ .init = ubicom32_rng_init, -+ .cleanup = ubicom32_rng_cleanup, -+ .data_present = ubicom32_rng_data_present, -+ .data_read = ubicom32_rng_data_read, -+ .priv = 0, -+}; -+ -+static int __init mod_init(void) -+{ -+ int err; -+ -+ printk(KERN_INFO "ubicom32 rng started\n"); -+ err = hwrng_register(&ubicom32_rng); -+ if (err) { -+ printk(KERN_ERR "ubicom32 rng register failed (%d)\n", -+ err); -+ } -+ -+ return err; -+} -+ -+static void __exit mod_exit(void) -+{ -+ printk(KERN_INFO "ubicom32 rng stopped\n"); -+ hwrng_unregister(&ubicom32_rng); -+} -+ -+module_init(mod_init); -+module_exit(mod_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Ubicom, Inc."); -+MODULE_DESCRIPTION("H/W rng driver for ubicom32 processor"); -+MODULE_VERSION("1:1.0.a"); ---- a/drivers/crypto/Kconfig -+++ b/drivers/crypto/Kconfig -@@ -61,6 +61,40 @@ config CRYPTO_DEV_GEODE - To compile this driver as a module, choose M here: the module - will be called geode-aes. - -+config CRYPTO_UBICOM32 -+ bool "Ubicom32 Security Module" -+ depends on UBICOM32 -+ help -+ This is the ubicom32 hardware acceleration common code. -+ -+config CRYPTO_AES_UBICOM32 -+ tristate "Ubicom32 AES implementation" -+ depends on CRYPTO_UBICOM32 -+ select CRYPTO_ALGAPI -+ help -+ This is the ubicom32 hardware AES implementation. -+ -+config CRYPTO_DES_UBICOM32 -+ tristate "Ubicom32 DES implementation" -+ depends on CRYPTO_UBICOM32 -+ select CRYPTO_ALGAPI -+ help -+ This is the ubicom32 hardware DES and 3DES implementation. -+ -+config CRYPTO_SHA1_UBICOM32 -+ tristate "Ubicom32 SHA1 implementation" -+ depends on CRYPTO_UBICOM32 -+ select CRYPTO_ALGAPI -+ help -+ This is the ubicom32 hardware SHA1 implementation. -+ -+config CRYPTO_MD5_UBICOM32 -+ tristate "Ubicom32 MD5 implementation" -+ depends on CRYPTO_UBICOM32 -+ select CRYPTO_ALGAPI -+ help -+ This is the ubicom32 hardware MD5 implementation. -+ - config ZCRYPT - tristate "Support for PCI-attached cryptographic adapters" - depends on S390 ---- a/drivers/mmc/host/Kconfig -+++ b/drivers/mmc/host/Kconfig -@@ -193,6 +193,13 @@ config MMC_TMIO - This provides support for the SD/MMC cell found in TC6393XB, - T7L66XB and also ipaq ASIC3 - -+config MMC_UBICOM32 -+ tristate "Ubicom32 MMC/SD host controller" -+ depends on UBICOM32 -+ help -+ This provides support for the SD/MMC hardware found on Ubicom32 -+ IP7K processors -+ - config GPIOMMC - tristate "MMC/SD over GPIO-based SPI" - depends on MMC && MMC_SPI && (SPI_GPIO || SPI_GPIO_OLD) ---- a/drivers/mmc/host/Makefile -+++ b/drivers/mmc/host/Makefile -@@ -22,5 +22,6 @@ obj-$(CONFIG_MMC_SPI) += mmc_spi.o - obj-$(CONFIG_MMC_S3C) += s3cmci.o - obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o - obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o -+obj-$(CONFIG_MMC_UBICOM32) += ubicom32sd.o - obj-$(CONFIG_GPIOMMC) += gpiommc.o - ---- /dev/null -+++ b/drivers/mmc/host/ubicom32sd.c -@@ -0,0 +1,774 @@ -+/* -+ * drivers/mmc/host/ubicom32sd.c -+ * Ubicom32 Secure Digital Host Controller Interface driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/delay.h> -+#include <linux/scatterlist.h> -+#include <linux/leds.h> -+#include <linux/gpio.h> -+#include <linux/mmc/host.h> -+ -+#include <asm/ubicom32sd.h> -+ -+#define DRIVER_NAME "ubicom32sd" -+ -+#define sd_printk(...) -+//#define sd_printk printk -+ -+#define SDTIO_VP_VERSION 3 -+ -+#define SDTIO_MAX_SG_BLOCKS 16 -+ -+enum sdtio_commands { -+ SDTIO_COMMAND_NOP, -+ SDTIO_COMMAND_SETUP, -+ SDTIO_COMMAND_SETUP_SDIO, -+ SDTIO_COMMAND_EXECUTE, -+ SDTIO_COMMAND_RESET, -+}; -+ -+#define SDTIO_COMMAND_SHIFT 24 -+#define SDTIO_COMMAND_FLAG_STOP_RSP_CRC (1 << 10) -+#define SDTIO_COMMAND_FLAG_STOP_RSP_136 (1 << 9) -+#define SDTIO_COMMAND_FLAG_STOP_RSP (1 << 8) -+#define SDTIO_COMMAND_FLAG_STOP_CMD (1 << 7) -+#define SDTIO_COMMAND_FLAG_DATA_STREAM (1 << 6) -+#define SDTIO_COMMAND_FLAG_DATA_RD (1 << 5) -+#define SDTIO_COMMAND_FLAG_DATA_WR (1 << 4) -+#define SDTIO_COMMAND_FLAG_CMD_RSP_CRC (1 << 3) -+#define SDTIO_COMMAND_FLAG_CMD_RSP_136 (1 << 2) -+#define SDTIO_COMMAND_FLAG_CMD_RSP (1 << 1) -+#define SDTIO_COMMAND_FLAG_CMD (1 << 0) -+ -+/* -+ * SDTIO_COMMAND_SETUP_SDIO -+ */ -+#define SDTIO_COMMAND_FLAG_SDIO_INT_EN (1 << 0) -+ -+/* -+ * SDTIO_COMMAND_SETUP -+ * clock speed in arg -+ */ -+#define SDTIO_COMMAND_FLAG_4BIT (1 << 3) -+#define SDTIO_COMMAND_FLAG_1BIT (1 << 2) -+#define SDTIO_COMMAND_FLAG_SET_CLOCK (1 << 1) -+#define SDTIO_COMMAND_FLAG_SET_WIDTH (1 << 0) -+ -+#define SDTIO_COMMAND_FLAG_CMD_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP | SDTIO_COMMAND_FLAG_CMD_RSP_136) -+#define SDTIO_COMMAND_FLAG_STOP_RSP_MASK (SDTIO_COMMAND_FLAG_STOP_RSP | SDTIO_COMMAND_FLAG_STOP_RSP_136) -+#define SDTIO_COMMAND_FLAG_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP_MASK | SDTIO_COMMAND_FLAG_STOP_RSP_MASK) -+ -+struct sdtio_vp_sg { -+ volatile void *addr; -+ volatile u32_t len; -+}; -+ -+#define SDTIO_VP_INT_STATUS_DONE (1 << 31) -+#define SDTIO_VP_INT_STATUS_SDIO_INT (1 << 10) -+#define SDTIO_VP_INT_STATUS_DATA_CRC_ERR (1 << 9) -+#define SDTIO_VP_INT_STATUS_DATA_PROG_ERR (1 << 8) -+#define SDTIO_VP_INT_STATUS_DATA_TIMEOUT (1 << 7) -+#define SDTIO_VP_INT_STATUS_STOP_RSP_CRC (1 << 6) -+#define SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT (1 << 5) -+#define SDTIO_VP_INT_STATUS_CMD_RSP_CRC (1 << 4) -+#define SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT (1 << 3) -+#define SDTIO_VP_INT_STATUS_CMD_TIMEOUT (1 << 2) -+#define SDTIO_VP_INT_STATUS_CARD1_INSERT (1 << 1) -+#define SDTIO_VP_INT_STATUS_CARD0_INSERT (1 << 0) -+ -+struct sdtio_vp_regs { -+ u32_t version; -+ u32_t f_max; -+ u32_t f_min; -+ -+ volatile u32_t int_status; -+ -+ volatile u32_t command; -+ volatile u32_t arg; -+ -+ volatile u32_t cmd_opcode; -+ volatile u32_t cmd_arg; -+ volatile u32_t cmd_rsp0; -+ volatile u32_t cmd_rsp1; -+ volatile u32_t cmd_rsp2; -+ volatile u32_t cmd_rsp3; -+ -+ volatile u32_t stop_opcode; -+ volatile u32_t stop_arg; -+ volatile u32_t stop_rsp0; -+ volatile u32_t stop_rsp1; -+ volatile u32_t stop_rsp2; -+ volatile u32_t stop_rsp3; -+ -+ volatile u32_t data_timeout_ns; -+ volatile u16_t data_blksz; -+ volatile u16_t data_blkct; -+ volatile u32_t data_bytes_transferred; -+ volatile u32_t sg_len; -+ struct sdtio_vp_sg sg[SDTIO_MAX_SG_BLOCKS]; -+}; -+ -+struct ubicom32sd_data { -+ const struct ubicom32sd_platform_data *pdata; -+ -+ struct mmc_host *mmc; -+ -+ /* -+ * Lock used to protect the data structure -+ spinlock_t lock; -+ */ -+ int int_en; -+ int int_pend; -+ -+ /* -+ * Receive and transmit interrupts used for communicating -+ * with hardware -+ */ -+ int irq_tx; -+ int irq_rx; -+ -+ /* -+ * Current outstanding mmc request -+ */ -+ struct mmc_request *mrq; -+ -+ /* -+ * Hardware registers -+ */ -+ struct sdtio_vp_regs *regs; -+}; -+ -+/*****************************************************************************\ -+ * * -+ * Suspend/resume * -+ * * -+\*****************************************************************************/ -+ -+#if 0//def CONFIG_PM -+ -+int ubicom32sd_suspend_host(struct ubicom32sd_host *host, pm_message_t state) -+{ -+ int ret; -+ -+ ret = mmc_suspend_host(host->mmc, state); -+ if (ret) -+ return ret; -+ -+ free_irq(host->irq, host); -+ -+ return 0; -+} -+ -+EXPORT_SYMBOL_GPL(ubicom32sd_suspend_host); -+ -+int ubicom32sd_resume_host(struct ubicom32sd_host *host) -+{ -+ int ret; -+ -+ if (host->flags & UBICOM32SD_USE_DMA) { -+ if (host->ops->enable_dma) -+ host->ops->enable_dma(host); -+ } -+ -+ ret = request_irq(host->irq, ubicom32sd_irq, IRQF_SHARED, -+ mmc_hostname(host->mmc), host); -+ if (ret) -+ return ret; -+ -+ ubicom32sd_init(host); -+ mmiowb(); -+ -+ ret = mmc_resume_host(host->mmc); -+ if (ret) -+ return ret; -+ -+ return 0; -+} -+ -+EXPORT_SYMBOL_GPL(ubicom32sd_resume_host); -+ -+#endif /* CONFIG_PM */ -+ -+/* -+ * ubicom32sd_send_command_sync -+ */ -+static void ubicom32sd_send_command_sync(struct ubicom32sd_data *ud, u32_t command, u32_t arg) -+{ -+ ud->regs->command = command; -+ ud->regs->arg = arg; -+ ubicom32_set_interrupt(ud->irq_tx); -+ while (ud->regs->command) { -+ ndelay(100); -+ } -+} -+ -+/* -+ * ubicom32sd_send_command -+ */ -+static void ubicom32sd_send_command(struct ubicom32sd_data *ud, u32_t command, u32_t arg) -+{ -+ ud->regs->command = command; -+ ud->regs->arg = arg; -+ ubicom32_set_interrupt(ud->irq_tx); -+} -+ -+/* -+ * ubicom32sd_reset -+ */ -+static void ubicom32sd_reset(struct ubicom32sd_data *ud) -+{ -+ ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_RESET << SDTIO_COMMAND_SHIFT, 0); -+ ud->regs->int_status = 0; -+} -+ -+/* -+ * ubicom32sd_mmc_request -+ */ -+static void ubicom32sd_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) -+{ -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ u32_t command = SDTIO_COMMAND_EXECUTE << SDTIO_COMMAND_SHIFT; -+ int ret = 0; -+ -+ WARN(ud->mrq != NULL, "ud->mrq still set to %p\n", ud->mrq); -+ //pr_debug("send cmd %08x arg %08x flags %08x\n", cmd->opcode, cmd->arg, cmd->flags); -+ -+ if (mrq->cmd) { -+ struct mmc_command *cmd = mrq->cmd; -+ -+ sd_printk("%s:\t\t\tsetup cmd %02d arg %08x flags %08x\n", mmc_hostname(mmc), cmd->opcode, cmd->arg, cmd->flags); -+ -+ ud->regs->cmd_opcode = cmd->opcode; -+ ud->regs->cmd_arg = cmd->arg; -+ -+ command |= SDTIO_COMMAND_FLAG_CMD; -+ -+ if (cmd->flags & MMC_RSP_PRESENT) { -+ command |= SDTIO_COMMAND_FLAG_CMD_RSP; -+ } -+ -+ if (cmd->flags & MMC_RSP_136) { -+ command |= SDTIO_COMMAND_FLAG_CMD_RSP_136; -+ } -+ -+ if (cmd->flags & MMC_RSP_CRC) { -+ command |= SDTIO_COMMAND_FLAG_CMD_RSP_CRC; -+ } -+ } -+ -+ if (mrq->data) { -+ struct mmc_data *data = mrq->data; -+ struct scatterlist *sg = data->sg; -+ int i; -+ -+printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, data->flags, data->timeout_ns); -+ -+ sd_printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", -+ mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, -+ data->flags, data->timeout_ns); -+ -+ if (data->sg_len > SDTIO_MAX_SG_BLOCKS) { -+ ret = -EINVAL; -+ data->error = -EINVAL; -+ goto fail; -+ } -+ -+ ud->regs->data_timeout_ns = data->timeout_ns; -+ ud->regs->data_blksz = data->blksz; -+ ud->regs->data_blkct = data->blocks; -+ ud->regs->sg_len = data->sg_len; -+ -+ /* -+ * Load all of our sg list into the driver sg buffer -+ */ -+ for (i = 0; i < data->sg_len; i++) { -+ sd_printk("%s: sg %d = %p %d\n", mmc_hostname(mmc), i, sg_virt(sg), sg->length); -+ ud->regs->sg[i].addr = sg_virt(sg); -+ ud->regs->sg[i].len = sg->length; -+ if (((u32_t)ud->regs->sg[i].addr & 0x03) || (sg->length & 0x03)) { -+ sd_printk("%s: Need aligned buffers\n", mmc_hostname(mmc)); -+ ret = -EINVAL; -+ data->error = -EINVAL; -+ goto fail; -+ } -+ sg++; -+ } -+ if (data->flags & MMC_DATA_READ) { -+ command |= SDTIO_COMMAND_FLAG_DATA_RD; -+ } else if (data->flags & MMC_DATA_WRITE) { -+ command |= SDTIO_COMMAND_FLAG_DATA_WR; -+ } else if (data->flags & MMC_DATA_STREAM) { -+ command |= SDTIO_COMMAND_FLAG_DATA_STREAM; -+ } -+ } -+ -+ if (mrq->stop) { -+ struct mmc_command *stop = mrq->stop; -+ sd_printk("%s: \t\t\tsetup stop %02d arg %08x flags %08x\n", mmc_hostname(mmc), stop->opcode, stop->arg, stop->flags); -+ -+ ud->regs->stop_opcode = stop->opcode; -+ ud->regs->stop_arg = stop->arg; -+ -+ command |= SDTIO_COMMAND_FLAG_STOP_CMD; -+ -+ if (stop->flags & MMC_RSP_PRESENT) { -+ command |= SDTIO_COMMAND_FLAG_STOP_RSP; -+ } -+ -+ if (stop->flags & MMC_RSP_136) { -+ command |= SDTIO_COMMAND_FLAG_STOP_RSP_136; -+ } -+ -+ if (stop->flags & MMC_RSP_CRC) { -+ command |= SDTIO_COMMAND_FLAG_STOP_RSP_CRC; -+ } -+ } -+ -+ ud->mrq = mrq; -+ -+ sd_printk("%s: Sending command %08x\n", mmc_hostname(mmc), command); -+ -+ ubicom32sd_send_command(ud, command, 0); -+ -+ return; -+fail: -+ sd_printk("%s: mmcreq ret = %d\n", mmc_hostname(mmc), ret); -+ mrq->cmd->error = ret; -+ mmc_request_done(mmc, mrq); -+} -+ -+/* -+ * ubicom32sd_mmc_set_ios -+ */ -+static void ubicom32sd_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) -+{ -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ u32_t command = SDTIO_COMMAND_SETUP << SDTIO_COMMAND_SHIFT; -+ u32_t arg = 0; -+ sd_printk("%s: ios call bw:%u pm:%u clk:%u\n", mmc_hostname(mmc), 1 << ios->bus_width, ios->power_mode, ios->clock); -+ -+ switch (ios->bus_width) { -+ case MMC_BUS_WIDTH_1: -+ command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_1BIT; -+ break; -+ -+ case MMC_BUS_WIDTH_4: -+ command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_4BIT; -+ break; -+ } -+ -+ if (ios->clock) { -+ arg = ios->clock; -+ command |= SDTIO_COMMAND_FLAG_SET_CLOCK; -+ } -+ -+ switch (ios->power_mode) { -+ -+ /* -+ * Turn off the SD bus (power + clock) -+ */ -+ case MMC_POWER_OFF: -+ gpio_set_value(ud->pdata->cards[0].pin_pwr, !ud->pdata->cards[0].pwr_polarity); -+ command |= SDTIO_COMMAND_FLAG_SET_CLOCK; -+ break; -+ -+ /* -+ * Turn on the power to the SD bus -+ */ -+ case MMC_POWER_ON: -+ gpio_set_value(ud->pdata->cards[0].pin_pwr, ud->pdata->cards[0].pwr_polarity); -+ break; -+ -+ /* -+ * Turn on the clock to the SD bus -+ */ -+ case MMC_POWER_UP: -+ /* -+ * Done above -+ */ -+ break; -+ } -+ -+ ubicom32sd_send_command_sync(ud, command, arg); -+ -+ /* -+ * Let the power settle down -+ */ -+ udelay(500); -+} -+ -+/* -+ * ubicom32sd_mmc_get_cd -+ */ -+static int ubicom32sd_mmc_get_cd(struct mmc_host *mmc) -+{ -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ sd_printk("%s: get cd %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_cd, gpio_get_value(ud->pdata->cards[0].pin_cd)); -+ -+ return gpio_get_value(ud->pdata->cards[0].pin_cd) ? -+ ud->pdata->cards[0].cd_polarity : -+ !ud->pdata->cards[0].cd_polarity; -+} -+ -+/* -+ * ubicom32sd_mmc_get_ro -+ */ -+static int ubicom32sd_mmc_get_ro(struct mmc_host *mmc) -+{ -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ sd_printk("%s: get ro %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_wp, gpio_get_value(ud->pdata->cards[0].pin_wp)); -+ -+ return gpio_get_value(ud->pdata->cards[0].pin_wp) ? -+ ud->pdata->cards[0].wp_polarity : -+ !ud->pdata->cards[0].wp_polarity; -+} -+ -+/* -+ * ubicom32sd_mmc_enable_sdio_irq -+ */ -+static void ubicom32sd_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) -+{ -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ -+ ud->int_en = enable; -+ if (enable && ud->int_pend) { -+ ud->int_pend = 0; -+ mmc_signal_sdio_irq(mmc); -+ } -+} -+ -+/* -+ * ubicom32sd_interrupt -+ */ -+static irqreturn_t ubicom32sd_interrupt(int irq, void *dev) -+{ -+ struct mmc_host *mmc = (struct mmc_host *)dev; -+ struct mmc_request *mrq; -+ struct ubicom32sd_data *ud; -+ u32_t int_status; -+ -+ if (!mmc) { -+ return IRQ_HANDLED; -+ } -+ -+ ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ if (!ud) { -+ return IRQ_HANDLED; -+ } -+ -+ int_status = ud->regs->int_status; -+ ud->regs->int_status &= ~int_status; -+ -+ if (int_status & SDTIO_VP_INT_STATUS_SDIO_INT) { -+ if (ud->int_en) { -+ ud->int_pend = 0; -+ mmc_signal_sdio_irq(mmc); -+ } else { -+ ud->int_pend++; -+ } -+ } -+ -+ if (!(int_status & SDTIO_VP_INT_STATUS_DONE)) { -+ return IRQ_HANDLED; -+ } -+ -+ mrq = ud->mrq; -+ if (!mrq) { -+ sd_printk("%s: Spurious interrupt", mmc_hostname(mmc)); -+ return IRQ_HANDLED; -+ } -+ ud->mrq = NULL; -+ -+ /* -+ * SDTIO_VP_INT_DONE -+ */ -+ if (mrq->cmd->flags & MMC_RSP_PRESENT) { -+ struct mmc_command *cmd = mrq->cmd; -+ cmd->error = 0; -+ -+ if ((cmd->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_CRC)) { -+ cmd->error = -EILSEQ; -+ } else if (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT) { -+ cmd->error = -ETIMEDOUT; -+ goto done; -+ } else if (cmd->flags & MMC_RSP_136) { -+ cmd->resp[0] = ud->regs->cmd_rsp0; -+ cmd->resp[1] = ud->regs->cmd_rsp1; -+ cmd->resp[2] = ud->regs->cmd_rsp2; -+ cmd->resp[3] = ud->regs->cmd_rsp3; -+ } else { -+ cmd->resp[0] = ud->regs->cmd_rsp0; -+ } -+ sd_printk("%s:\t\t\tResponse %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error); -+ } -+ -+ if (mrq->data) { -+ struct mmc_data *data = mrq->data; -+ -+ if (int_status & SDTIO_VP_INT_STATUS_DATA_TIMEOUT) { -+ data->error = -ETIMEDOUT; -+ sd_printk("%s:\t\t\tData Timeout\n", mmc_hostname(mmc)); -+ goto done; -+ } else if (int_status & SDTIO_VP_INT_STATUS_DATA_CRC_ERR) { -+ data->error = -EILSEQ; -+ sd_printk("%s:\t\t\tData CRC\n", mmc_hostname(mmc)); -+ goto done; -+ } else if (int_status & SDTIO_VP_INT_STATUS_DATA_PROG_ERR) { -+ data->error = -EILSEQ; -+ sd_printk("%s:\t\t\tData Program Error\n", mmc_hostname(mmc)); -+ goto done; -+ } else { -+ data->error = 0; -+ data->bytes_xfered = ud->regs->data_bytes_transferred; -+ } -+ } -+ -+ if (mrq->stop && (mrq->stop->flags & MMC_RSP_PRESENT)) { -+ struct mmc_command *stop = mrq->stop; -+ stop->error = 0; -+ -+ if ((stop->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_CRC)) { -+ stop->error = -EILSEQ; -+ } else if (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT) { -+ stop->error = -ETIMEDOUT; -+ goto done; -+ } else if (stop->flags & MMC_RSP_136) { -+ stop->resp[0] = ud->regs->stop_rsp0; -+ stop->resp[1] = ud->regs->stop_rsp1; -+ stop->resp[2] = ud->regs->stop_rsp2; -+ stop->resp[3] = ud->regs->stop_rsp3; -+ } else { -+ stop->resp[0] = ud->regs->stop_rsp0; -+ } -+ sd_printk("%s:\t\t\tStop Response %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), stop->resp[0], stop->resp[1], stop->resp[2], stop->resp[3], stop->error); -+ } -+ -+done: -+ mmc_request_done(mmc, mrq); -+ -+ return IRQ_HANDLED; -+} -+ -+static struct mmc_host_ops ubicom32sd_ops = { -+ .request = ubicom32sd_mmc_request, -+ .set_ios = ubicom32sd_mmc_set_ios, -+ .get_ro = ubicom32sd_mmc_get_ro, -+ .get_cd = ubicom32sd_mmc_get_cd, -+ .enable_sdio_irq = ubicom32sd_mmc_enable_sdio_irq, -+}; -+ -+/* -+ * ubicom32sd_probe -+ */ -+static int __devinit ubicom32sd_probe(struct platform_device *pdev) -+{ -+ struct ubicom32sd_platform_data *pdata = (struct ubicom32sd_platform_data *)pdev->dev.platform_data; -+ struct mmc_host *mmc; -+ struct ubicom32sd_data *ud; -+ struct resource *res_regs; -+ struct resource *res_irq_tx; -+ struct resource *res_irq_rx; -+ int ret; -+ -+ /* -+ * Get our resources, regs is the hardware driver base address -+ * and the tx and rx irqs are used to communicate with the -+ * hardware driver. -+ */ -+ res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1); -+ if (!res_regs || !res_irq_tx || !res_irq_rx) { -+ ret = -EINVAL; -+ goto fail; -+ } -+ -+ /* -+ * Reserve any gpios we need -+ */ -+ ret = gpio_request(pdata->cards[0].pin_wp, "sd-wp"); -+ if (ret) { -+ goto fail; -+ } -+ gpio_direction_input(pdata->cards[0].pin_wp); -+ -+ ret = gpio_request(pdata->cards[0].pin_cd, "sd-cd"); -+ if (ret) { -+ goto fail_cd; -+ } -+ gpio_direction_input(pdata->cards[0].pin_cd); -+ -+ /* -+ * HACK: for the dual port controller on port F, we don't support the second port right now -+ */ -+ if (pdata->ncards > 1) { -+ ret = gpio_request(pdata->cards[1].pin_pwr, "sd-pwr"); -+ gpio_direction_output(pdata->cards[1].pin_pwr, !pdata->cards[1].pwr_polarity); -+ gpio_direction_output(pdata->cards[1].pin_pwr, pdata->cards[1].pwr_polarity); -+ } -+ -+ ret = gpio_request(pdata->cards[0].pin_pwr, "sd-pwr"); -+ if (ret) { -+ goto fail_pwr; -+ } -+ gpio_direction_output(pdata->cards[0].pin_pwr, !pdata->cards[0].pwr_polarity); -+ -+ /* -+ * Allocate the MMC driver, it includes memory for our data. -+ */ -+ mmc = mmc_alloc_host(sizeof(struct ubicom32sd_data), &pdev->dev); -+ if (!mmc) { -+ ret = -ENOMEM; -+ goto fail_mmc; -+ } -+ ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ ud->mmc = mmc; -+ ud->pdata = pdata; -+ ud->regs = (struct sdtio_vp_regs *)res_regs->start; -+ ud->irq_tx = res_irq_tx->start; -+ ud->irq_rx = res_irq_rx->start; -+ platform_set_drvdata(pdev, mmc); -+ -+ ret = request_irq(ud->irq_rx, ubicom32sd_interrupt, IRQF_DISABLED, mmc_hostname(mmc), mmc); -+ if (ret) { -+ goto fail_mmc; -+ } -+ -+ /* -+ * Fill in the mmc structure -+ */ -+ mmc->ops = &ubicom32sd_ops; -+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_NEEDS_POLL | MMC_CAP_SDIO_IRQ | -+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED; -+ -+ mmc->f_min = ud->regs->f_min; -+ mmc->f_max = ud->regs->f_max; -+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; -+ -+ /* -+ * Setup some restrictions on transfers -+ * -+ * We allow up to SDTIO_MAX_SG_BLOCKS of data to DMA into, there are -+ * not really any "max_seg_size", "max_req_size", or "max_blk_count" -+ * restrictions (must be less than U32_MAX though), pick -+ * something large?!... -+ * -+ * The hardware can do up to 4095 bytes per block, since the spec -+ * only requires 2048, we'll set it to that and not worry about -+ * potential weird blk lengths. -+ */ -+ mmc->max_hw_segs = SDTIO_MAX_SG_BLOCKS; -+ mmc->max_phys_segs = SDTIO_MAX_SG_BLOCKS; -+ mmc->max_seg_size = 1024 * 1024; -+ mmc->max_req_size = 1024 * 1024; -+ mmc->max_blk_count = 1024; -+ -+ mmc->max_blk_size = 2048; -+ -+ ubicom32sd_reset(ud); -+ -+ /* -+ * enable interrupts -+ */ -+ ud->int_en = 0; -+ ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_SETUP_SDIO << SDTIO_COMMAND_SHIFT | SDTIO_COMMAND_FLAG_SDIO_INT_EN, 0); -+ -+ mmc_add_host(mmc); -+ -+ printk(KERN_INFO "%s at %p, irq %d/%d\n", mmc_hostname(mmc), -+ ud->regs, ud->irq_tx, ud->irq_rx); -+ return 0; -+ -+fail_mmc: -+ gpio_free(pdata->cards[0].pin_pwr); -+fail_pwr: -+ gpio_free(pdata->cards[0].pin_cd); -+fail_cd: -+ gpio_free(pdata->cards[0].pin_wp); -+fail: -+ return ret; -+} -+ -+/* -+ * ubicom32sd_remove -+ */ -+static int __devexit ubicom32sd_remove(struct platform_device *pdev) -+{ -+ struct mmc_host *mmc = platform_get_drvdata(pdev); -+ -+ platform_set_drvdata(pdev, NULL); -+ -+ if (mmc) { -+ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); -+ -+ gpio_free(ud->pdata->cards[0].pin_pwr); -+ gpio_free(ud->pdata->cards[0].pin_cd); -+ gpio_free(ud->pdata->cards[0].pin_wp); -+ -+ mmc_remove_host(mmc); -+ mmc_free_host(mmc); -+ } -+ -+ /* -+ * Note that our data is allocated as part of the mmc structure -+ * so we don't need to free it. -+ */ -+ return 0; -+} -+ -+static struct platform_driver ubicom32sd_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = ubicom32sd_probe, -+ .remove = __devexit_p(ubicom32sd_remove), -+#if 0 -+ .suspend = ubicom32sd_suspend, -+ .resume = ubicom32sd_resume, -+#endif -+}; -+ -+/* -+ * ubicom32sd_init -+ */ -+static int __init ubicom32sd_init(void) -+{ -+ return platform_driver_register(&ubicom32sd_driver); -+} -+module_init(ubicom32sd_init); -+ -+/* -+ * ubicom32sd_exit -+ */ -+static void __exit ubicom32sd_exit(void) -+{ -+ platform_driver_unregister(&ubicom32sd_driver); -+} -+module_exit(ubicom32sd_exit); -+ -+MODULE_AUTHOR("Patrick Tjin"); -+MODULE_DESCRIPTION("Ubicom32 Secure Digital Host Controller Interface driver"); -+MODULE_LICENSE("GPL"); -+ ---- a/drivers/mtd/devices/Kconfig -+++ b/drivers/mtd/devices/Kconfig -@@ -104,6 +104,17 @@ config M25PXX_USE_FAST_READ - help - This option enables FAST_READ access supported by ST M25Pxx. - -+config MTD_UBI32_M25P80 -+ tristate "Ubicom processor support for most SPI Flash chips (AT26DF, M25P, W25X, ...)" -+ depends on UBICOM32 -+ default y -+ help -+ This enables access to most modern SPI flash chips, used for -+ program and data storage. Series supported include Atmel AT26DF, -+ Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips -+ are supported as well. See the driver source for the current list, -+ or to add other chips. -+ - config MTD_SLRAM - tristate "Uncached system RAM" - help ---- a/drivers/mtd/devices/Makefile -+++ b/drivers/mtd/devices/Makefile -@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART) += lart.o - obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o - obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o - obj-$(CONFIG_MTD_M25P80) += m25p80.o -+obj-$(CONFIG_MTD_UBI32_M25P80) += ubi32-m25p80.o ---- /dev/null -+++ b/drivers/mtd/devices/ubi32-m25p80.c -@@ -0,0 +1,1066 @@ -+/* -+ * drivers/mtd/devices/ubi32-m25p80.c -+ * NOR flash driver, Ubicom processor internal SPI flash interface. -+ * -+ * This code instantiates the serial flash that contains the -+ * original bootcode. The serial flash start at address 0x60000000 -+ * in both Ubicom32V3 and Ubicom32V4 ISAs. -+ * -+ * This piece of flash is made to appear as a Memory Technology -+ * Device (MTD) with this driver to allow Read/Write/Erase operations. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/types.h> -+#include <linux/device.h> -+#include <linux/platform_device.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/partitions.h> -+#include <linux/mtd/physmap.h> -+#include <linux/spi/spi.h> -+#include <linux/spi/flash.h> -+ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/interrupt.h> -+#include <linux/mutex.h> -+ -+#include <asm/ip5000.h> -+#include <asm/devtree.h> -+ -+#define UBICOM32_FLASH_BASE 0x60000000 -+#define UBICOM32_FLASH_MAX_SIZE 0x01000000 -+#define UBICOM32_FLASH_START 0x00000000 -+#define UBICOM32_KERNEL_OFFSET 0x00010000 /* The kernel starts after Ubicom -+ * .protect section. */ -+ -+static struct mtd_partition ubicom32_flash_partitions[] = { -+ { -+ .name = "Bootloader", /* Protected Section -+ * Partition */ -+ .size = 0x10000, -+ .offset = UBICOM32_FLASH_START, -+// .mask_flags = MTD_WRITEABLE /* Mark Read-only */ -+ }, -+ { -+ .name = "Kernel", /* Kernel Partition. */ -+ .size = 0, /* this will be set up during -+ * probe stage. At that time we -+ * will know end of linux image -+ * in flash. */ -+ .offset = MTDPART_OFS_APPEND, /* Starts right after Protected -+ * section. */ -+// .mask_flags = MTD_WRITEABLE /* Mark Read-only */ -+ }, -+ { -+ .name = "Rest", /* Rest of the flash. */ -+ .size = 0x200000, /* Use up what remains in the -+ * flash. */ -+ .offset = MTDPART_OFS_NXTBLK, /* Starts right after Protected -+ * section. */ -+ } -+}; -+ -+static struct flash_platform_data ubicom32_flash_data = { -+ .name = "ubicom32_boot_flash", -+ .parts = ubicom32_flash_partitions, -+ .nr_parts = ARRAY_SIZE(ubicom32_flash_partitions), -+}; -+ -+static struct resource ubicom32_flash_resource[] = { -+ { -+ .start = UBICOM32_FLASH_BASE, -+ .end = UBICOM32_FLASH_BASE + -+ UBICOM32_FLASH_MAX_SIZE - 1, -+ .flags = IORESOURCE_MEM, -+ }, -+}; -+ -+static struct platform_device ubicom32_flash_device = { -+ .name = "ubicom32flashdriver", -+ .id = 0, /* Bus number */ -+ .num_resources = ARRAY_SIZE(ubicom32_flash_resource), -+ .resource = ubicom32_flash_resource, -+ .dev = { -+ .platform_data = &ubicom32_flash_data, -+ }, -+}; -+ -+static struct platform_device *ubicom32_flash_devices[] = { -+ &ubicom32_flash_device, -+}; -+ -+static int __init ubicom32_flash_init(void) -+{ -+ printk(KERN_INFO "%s(): registering device resources\n", -+ __FUNCTION__); -+ platform_add_devices(ubicom32_flash_devices, -+ ARRAY_SIZE(ubicom32_flash_devices)); -+ return 0; -+} -+ -+arch_initcall(ubicom32_flash_init); -+ -+/* -+ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips through -+ * Ubicom32 SPI controller. -+ * -+ * Author: Mike Lavender, mike@steroidmicros.com -+ * -+ * Copyright (c) 2005, Intec Automation Inc. -+ * -+ * Some parts are based on lart.c by Abraham Van Der Merwe -+ * -+ * Cleaned up and generalized based on mtd_dataflash.c -+ * -+ * This code is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+ -+#define FLASH_PAGESIZE 256 -+ -+/* Flash opcodes. */ -+#define OPCODE_WREN 0x06 /* Write enable */ -+#define OPCODE_RDSR 0x05 /* Read status register */ -+#define OPCODE_READ 0x03 /* Read data bytes (low frequency) */ -+#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */ -+#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */ -+#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ -+#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ -+#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ -+#define OPCODE_RDID 0x9f /* Read JEDEC ID */ -+ -+/* Status Register bits. */ -+#define SR_WIP 1 /* Write in progress */ -+#define SR_WEL 2 /* Write enable latch */ -+/* meaning of other SR_* bits may differ between vendors */ -+#define SR_BP0 4 /* Block protect 0 */ -+#define SR_BP1 8 /* Block protect 1 */ -+#define SR_BP2 0x10 /* Block protect 2 */ -+#define SR_SRWD 0x80 /* SR write protect */ -+ -+/* Define max times to check status register before we give up. */ -+#define MAX_READY_WAIT_COUNT 100000 -+ -+ -+#ifdef CONFIG_MTD_PARTITIONS -+#define mtd_has_partitions() (1) -+#else -+#define mtd_has_partitions() (0) -+#endif -+ -+/* -+ * Ubicom32 FLASH Command Set -+ */ -+#define FLASH_FC_INST_CMD 0x00 /* for SPI command only transaction */ -+#define FLASH_FC_INST_WR 0x01 /* for SPI write transaction */ -+#define FLASH_FC_INST_RD 0x02 /* for SPI read transaction */ -+ -+#define ALIGN_DOWN(v, a) ((v) & ~((a) - 1)) -+#define ALIGN_UP(v, a) (((v) + ((a) - 1)) & ~((a) - 1)) -+ -+#define FLASH_COMMAND_KICK_OFF(io) \ -+ asm volatile( \ -+ " bset "D(IO_INT_CLR)"(%0), #0, #%%bit("D(IO_XFL_INT_DONE)") \n\t" \ -+ " jmpt.t .+4 \n\t" \ -+ " bset "D(IO_INT_SET)"(%0), #0, #%%bit("D(IO_XFL_INT_START)") \n\t" \ -+ : \ -+ : "a" (io) \ -+ : "memory", "cc" \ -+ ); -+ -+#define FLASH_COMMAND_WAIT_FOR_COMPLETION(io) \ -+ asm volatile( \ -+ " btst "D(IO_INT_STATUS)"(%0), #%%bit("D(IO_XFL_INT_DONE)") \n\t" \ -+ " jmpeq.f .-4 \n\t" \ -+ : \ -+ : "a" (io) \ -+ : "memory", "cc" \ -+ ); -+ -+#define FLASH_COMMAND_EXEC(io) \ -+ FLASH_COMMAND_KICK_OFF(io) \ -+ FLASH_COMMAND_WAIT_FOR_COMPLETION(io) -+ -+ -+#define OSC1_FREQ 12000000 -+#define TEN_MICRO_SECONDS (OSC1_FREQ * 10 / 1000000) -+ -+/* -+ * We will have to eventually replace this null definition with the real thing. -+ */ -+#define WATCHDOG_RESET() -+ -+#define EXTFLASH_WRITE_FIFO_SIZE 32 -+#define EXTFLASH_WRITE_BLOCK_SIZE EXTFLASH_WRITE_FIFO_SIZE /* limit the size to -+ * FIFO capacity, so -+ * the thread can be -+ * suspended. */ -+ -+#define JFFS2_FILESYSTEM_SIZE 0x100000 -+ -+/****************************************************************************/ -+ -+struct m25p { -+ struct platform_device *plt_dev; -+ struct mutex lock; -+ struct mtd_info mtd; -+ unsigned partitioned:1; -+ u8 erase_opcode; -+ u8 command[4]; -+}; -+ -+static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd) -+{ -+ return container_of(mtd, struct m25p, mtd); -+} -+ -+/****************************************************************************/ -+ -+/* -+ * Internal helper functions -+ */ -+ -+/* -+ * Read the status register, returning its value in the location -+ * Return the status register value. -+ * Returns negative if error occurred. -+ */ -+static int read_sr(struct m25p *flash) -+{ -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) | -+ IO_XFL_CTL1_FC_DATA(1); -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR); -+ FLASH_COMMAND_EXEC(io); -+ -+ return io->status1 & 0xff; -+} -+ -+/* -+ * mem_flash_io_read_u32() -+ */ -+static u32 mem_flash_io_read_u32(u32 addr) -+{ -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) | -+ IO_XFL_CTL1_FC_DATA(4) | IO_XFL_CTL1_FC_DUMMY(1) | -+ IO_XFL_CTL1_FC_ADDR; -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_FAST_READ) | -+ IO_XFL_CTL2_FC_ADDR(addr); -+ FLASH_COMMAND_EXEC(io); -+ return io->status1; -+} -+ -+/* -+ * mem_flash_read_u8() -+ */ -+static u8 mem_flash_read_u8(u32 addr) -+{ -+ u32 tmp_addr = ALIGN_DOWN(addr, 4); -+ u32 tmp_data = mem_flash_io_read_u32(tmp_addr); -+ u8 *ptr = (u8 *)&tmp_data; -+ return ptr[addr & 0x3]; -+} -+ -+/* -+ * mem_flash_read() -+ * No need to lock as read is implemented with ireads (same as normal flash -+ * execution). -+ */ -+static void mem_flash_read(u32 addr, void *dst, size_t length) -+{ -+ /* -+ * Range check -+ */ -+ /* -+ * Fix source alignment. -+ */ -+ while (addr & 0x03) { -+ if (length == 0) { -+ return; -+ } -+ *((u8 *)dst) = mem_flash_read_u8(addr++); -+ dst++; -+ length--; -+ } -+ -+ while (length >= 4) { -+ u32 tmp_data = mem_flash_io_read_u32(addr); -+ addr += 4; -+ length -= 4; -+ -+ /* -+ * Send the data to the destination. -+ */ -+ memcpy((void *)dst, (void *)&tmp_data, 4); -+ dst += 4; -+ } -+ -+ while (length--) { -+ *((u8 *)dst) = mem_flash_read_u8(addr++); -+ dst++; -+ } -+} -+ -+/* -+ * mem_flash_wait_until_complete() -+ */ -+static void mem_flash_wait_until_complete(void) -+{ -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ -+ do { -+ /* -+ * Put a delay here to deal with flash programming problem. -+ */ -+ u32 mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS; -+ while (UBICOM32_IO_TIMER->mptval < mptval) -+ ; -+ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) | -+ IO_XFL_CTL1_FC_DATA(1); -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR); -+ FLASH_COMMAND_EXEC(io); -+ } while (io->status1 & SR_WIP); -+} -+ -+/* -+ * mem_flash_write_next() -+ */ -+static size_t mem_flash_write_next(u32 addr, u8 *buf, size_t length) -+{ -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ u32 data_start = addr; -+ u32 data_end = addr + length; -+ size_t count; -+ u32 i, j; -+ -+ /* -+ * Top limit address. -+ */ -+ u32 block_start = ALIGN_DOWN(data_start, 4); -+ u32 block_end = block_start + EXTFLASH_WRITE_BLOCK_SIZE; -+ -+ union { -+ u8 byte[EXTFLASH_WRITE_BLOCK_SIZE]; -+ u32 word[EXTFLASH_WRITE_BLOCK_SIZE / 4]; -+ } write_buf; -+ -+ u32 *flash_addr = (u32 *)block_start; -+ -+ /* -+ * The write block must be limited by FLASH internal buffer. -+ */ -+ u32 block_end_align = ALIGN_DOWN(block_end, 256); -+ bool write_needed; -+ -+ block_end = (block_end_align > block_start) -+ ? block_end_align : block_end; -+ data_end = (data_end <= block_end) ? data_end : block_end; -+ block_end = ALIGN_UP(data_end, 4); -+ count = data_end - data_start; -+ -+ /* -+ * Transfer data to a buffer. -+ */ -+ for (i = 0; i < (block_end - block_start) / 4; i++) { -+ /* -+ * The FLASH read can hold D-cache for a long time. -+ * Use I/O operation to read FLASH to avoid starving other -+ * threads, especially HRT. (Do this for application only) -+ */ -+ write_buf.word[i] = mem_flash_io_read_u32( -+ (u32)(&flash_addr[i])); -+ } -+ -+ write_needed = false; -+ for (i = 0, j = (data_start - block_start); -+ i < (data_end - data_start); i++, j++) { -+ write_needed = write_needed || (write_buf.byte[j] != buf[i]); -+ write_buf.byte[j] &= buf[i]; -+ } -+ -+ -+ /* -+ * If the data in FLASH is identical to what to be written. Then skip -+ * it. -+ */ -+ if (write_needed) { -+ /* -+ * Write to flash. -+ */ -+ void *tmp __attribute__((unused)); -+ s32 extra_words; -+ -+ asm volatile( -+ " move.4 %0, %2 \n\t" -+ " bset "D(IO_INT_SET)"(%1), #0, #%%bit("D(IO_PORTX_INT_FIFO_TX_RESET)") \n\t" -+ " pipe_flush 0 \n\t" -+ " .rept "D(EXTFLASH_WRITE_FIFO_SIZE / 4)" \n\t" -+ " move.4 "D(IO_TX_FIFO)"(%1), (%0)4++ \n\t" -+ " .endr \n\t" -+ : "=&a" (tmp) -+ : "a" (io), "r" (&write_buf.word[0]) -+ : "memory", "cc" -+ ); -+ -+ /* Lock FLASH for write access. */ -+ io->ctl0 |= IO_XFL_CTL0_MCB_LOCK; -+ -+ /* Command: WREN */ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD); -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN); -+ FLASH_COMMAND_EXEC(io); -+ -+ /* Command: BYTE PROGRAM */ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_WR) | -+ IO_XFL_CTL1_FC_DATA(block_end - block_start) | -+ IO_XFL_CTL1_FC_ADDR; -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_PP) | -+ IO_XFL_CTL2_FC_ADDR(block_start); -+ FLASH_COMMAND_KICK_OFF(io); -+ -+ extra_words = (s32)(block_end - block_start - -+ EXTFLASH_WRITE_FIFO_SIZE) / 4; -+ if (extra_words > 0) { -+ asm volatile( -+ " move.4 %0, %3 \n\t" -+ "1: cmpi "D(IO_FIFO_LEVEL)"(%1), #4 \n\t" -+ " jmpgt.s.t 1b \n\t" -+ " move.4 "D(IO_TX_FIFO)"(%1), (%0)4++ \n\t" -+ " add.4 %2, #-1, %2 \n\t" -+ " jmpgt.t 1b \n\t" -+ : "=&a" (tmp) -+ : "a" (io), "d" (extra_words), -+ "r" (&write_buf.word[EXTFLASH_WRITE_FIFO_SIZE / 4]) -+ : "memory", "cc" -+ ); -+ } -+ FLASH_COMMAND_WAIT_FOR_COMPLETION(io); -+ -+ mem_flash_wait_until_complete(); -+ -+ -+ /* Unlock FLASH for cache access. */ -+ io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK; -+ } -+ -+ /* -+ * Complete. -+ */ -+ return count; -+} -+ -+/* -+ * mem_flash_write() -+ */ -+static void mem_flash_write(u32 addr, const void *src, size_t length) -+{ -+ /* -+ * Write data -+ */ -+ u8_t *ptr = (u8_t *)src; -+ while (length) { -+ size_t count = mem_flash_write_next(addr, ptr, length); -+ addr += count; -+ ptr += count; -+ length -= count; -+ } -+} -+ -+/* -+ * Service routine to read status register until ready, or timeout occurs. -+ * Returns non-zero if error. -+ */ -+static int wait_till_ready(struct m25p *flash) -+{ -+ int count; -+ int sr; -+ -+ /* one chip guarantees max 5 msec wait here after page writes, -+ * but potentially three seconds (!) after page erase. -+ */ -+ for (count = 0; count < MAX_READY_WAIT_COUNT; count++) { -+ u32 mptval; -+ sr = read_sr(flash); -+ if (sr < 0) -+ break; -+ else if (!(sr & SR_WIP)) -+ return 0; -+ -+ /* -+ * Put a 10us delay here to deal with flash programming problem. -+ */ -+ mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS; -+ while ((s32)(mptval - UBICOM32_IO_TIMER->mptval) > 0) { -+ WATCHDOG_RESET(); -+ } -+ /* REVISIT sometimes sleeping would be best */ -+ } -+ -+ return 1; -+} -+ -+/* -+ * mem_flash_erase_page() -+ */ -+static void mem_flash_erase_page(u32 addr) -+{ -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ -+ /* Lock FLASH for write access. */ -+ io->ctl0 |= IO_XFL_CTL0_MCB_LOCK; -+ -+ /* Command: WREN */ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD); -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN); -+ FLASH_COMMAND_EXEC(io); -+ -+ /* Command: ERASE */ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD) | -+ IO_XFL_CTL1_FC_ADDR; -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_SE) | -+ IO_XFL_CTL2_FC_ADDR(addr); -+ FLASH_COMMAND_EXEC(io); -+ -+ mem_flash_wait_until_complete(); -+ -+ /* Unlock FLASH for cache access. */ -+ io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK; -+} -+ -+/* -+ * mem_flash_erase() -+ */ -+static u32 mem_flash_erase(u32 addr, u32 length) -+{ -+ /* -+ * Calculate the endaddress to be the first address of the page -+ * just beyond this erase section of pages. -+ */ -+ u32 endaddr = addr + length; -+ -+ /* -+ * Erase. -+ */ -+ while (addr < endaddr) { -+ u32 test_addr = addr; -+ mem_flash_erase_page(addr); -+ -+ /* -+ * Test how much was erased as actual flash page at this address -+ * may be smaller than the expected page size. -+ */ -+ while (test_addr < endaddr) { -+ /* -+ * The FLASH read can hold D-cache for a long time. Use -+ * I/O operation to read FLASH to avoid starving other -+ * threads, especially HRT. (Do this for application -+ * only) -+ */ -+ if (mem_flash_io_read_u32(test_addr) != 0xFFFFFFFF) { -+ break; -+ } -+ test_addr += 4; -+ } -+ if (test_addr == addr) { -+ printk("erase failed at address 0x%x, skipping", -+ test_addr); -+ test_addr += 4; -+ return 1; -+ } -+ addr = test_addr; -+ } -+ return 0; -+} -+ -+ -+/****************************************************************************/ -+ -+/* -+ * MTD implementation -+ */ -+ -+/* -+ * Erase an address range on the flash chip. The address range may extend -+ * one or more erase sectors. Return an error is there is a problem erasing. -+ */ -+static int ubicom32_flash_driver_erase(struct mtd_info *mtd, -+ struct erase_info *instr) -+{ -+ struct m25p *flash = mtd_to_m25p(mtd); -+ u32 addr, len; -+ -+ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n", -+ flash->plt_dev->dev.bus_id, __FUNCTION__, "at", -+ (u32)instr->addr, instr->len); -+ -+ /* sanity checks */ -+ if (instr->addr + instr->len > flash->mtd.size) -+ return -EINVAL; -+ if ((instr->addr % mtd->erasesize) != 0 -+ || (instr->len % mtd->erasesize) != 0) { -+ return -EINVAL; -+ } -+ -+ addr = instr->addr + UBICOM32_FLASH_BASE; -+ len = instr->len; -+ -+ mutex_lock(&flash->lock); -+ -+ /* REVISIT in some cases we could speed up erasing large regions -+ * by using OPCODE_SE instead of OPCODE_BE_4K -+ */ -+ -+ /* now erase those sectors */ -+ if (mem_flash_erase(addr, len)) { -+ instr->state = MTD_ERASE_FAILED; -+ mutex_unlock(&flash->lock); -+ return -EIO; -+ } -+ -+ mutex_unlock(&flash->lock); -+ instr->state = MTD_ERASE_DONE; -+ mtd_erase_callback(instr); -+ return 0; -+} -+ -+/* -+ * Read an address range from the flash chip. The address range -+ * may be any size provided it is within the physical boundaries. -+ */ -+static int ubicom32_flash_driver_read(struct mtd_info *mtd, loff_t from, -+ size_t len, size_t *retlen, u_char *buf) -+{ -+ struct m25p *flash = mtd_to_m25p(mtd); -+ u32 base_addr = UBICOM32_FLASH_BASE + from; -+ -+ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n", -+ flash->plt_dev->dev.bus_id, __FUNCTION__, "from", -+ (u32)from, len); -+ -+ /* sanity checks */ -+ if (!len) -+ return 0; -+ -+ if (from + len > flash->mtd.size) -+ return -EINVAL; -+ -+ /* Byte count starts at zero. */ -+ if (retlen) -+ *retlen = 0; -+ -+ mutex_lock(&flash->lock); -+ -+ /* Wait till previous write/erase is done. */ -+ if (wait_till_ready(flash)) { -+ /* REVISIT status return?? */ -+ mutex_unlock(&flash->lock); -+ return 1; -+ } -+ -+ mem_flash_read(base_addr, (void *)buf, len); -+ -+ if (retlen) -+ *retlen = len; -+ -+ mutex_unlock(&flash->lock); -+ -+ return 0; -+} -+ -+/* -+ * Write an address range to the flash chip. Data must be written in -+ * FLASH_PAGESIZE chunks. The address range may be any size provided -+ * it is within the physical boundaries. -+ */ -+static int ubicom32_flash_driver_write(struct mtd_info *mtd, loff_t to, -+ size_t len, size_t *retlen, -+ const u_char *buf) -+{ -+ struct m25p *flash = mtd_to_m25p(mtd); -+ u32 base_addr = UBICOM32_FLASH_BASE + to; -+ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n", -+ flash->plt_dev->dev.bus_id, __FUNCTION__, "to", -+ (u32)to, len); -+ -+ if (retlen) -+ *retlen = 0; -+ -+ /* sanity checks */ -+ if (!len) -+ return 0; -+ -+ if (to + len > flash->mtd.size) -+ return -EINVAL; -+ -+ mutex_lock(&flash->lock); -+ -+ mem_flash_write(base_addr, (void *) buf, len); -+ -+ /* Wait until finished previous write command. */ -+ if (wait_till_ready(flash)) { -+ mutex_unlock(&flash->lock); -+ return 1; -+ } -+ -+ if (retlen) -+ *retlen = len; -+ -+ mutex_unlock(&flash->lock); -+ return 0; -+} -+ -+ -+/****************************************************************************/ -+ -+/* -+ * SPI device driver setup and teardown -+ */ -+ -+struct flash_info { -+ char *name; -+ -+ /* JEDEC id zero means "no ID" (most older chips); otherwise it has -+ * a high byte of zero plus three data bytes: the manufacturer id, -+ * then a two byte device id. -+ */ -+ u32 jedec_id; -+ -+ /* The size listed here is what works with OPCODE_SE, which isn't -+ * necessarily called a "sector" by the vendor. -+ */ -+ unsigned sector_size; -+ u16 n_sectors; -+ -+ u16 flags; -+#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ -+}; -+ -+ -+/* NOTE: double check command sets and memory organization when you add -+ * more flash chips. This current list focusses on newer chips, which -+ * have been converging on command sets which including JEDEC ID. -+ */ -+static struct flash_info __devinitdata m25p_data[] = { -+ -+ /* Atmel -- some are (confusingly) marketed as "DataFlash" */ -+ { "at25fs010", 0x1f6601, 32 * 1024, 4, SECT_4K, }, -+ { "at25fs040", 0x1f6604, 64 * 1024, 8, SECT_4K, }, -+ -+ { "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, }, -+ -+ { "at26f004", 0x1f0400, 64 * 1024, 8, SECT_4K, }, -+ { "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, }, -+ { "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, }, -+ { "at26df321", 0x1f4701, 64 * 1024, 64, SECT_4K, }, -+ -+ /* Spansion -- single (large) sector size only, at least -+ * for the chips listed here (without boot sectors). -+ */ -+ { "s25sl004a", 0x010212, 64 * 1024, 8, }, -+ { "s25sl008a", 0x010213, 64 * 1024, 16, }, -+ { "s25sl016a", 0x010214, 64 * 1024, 32, }, -+ { "s25sl032a", 0x010215, 64 * 1024, 64, }, -+ { "s25sl064a", 0x010216, 64 * 1024, 128, }, -+ -+ /* SST -- large erase sizes are "overlays", "sectors" are 4K */ -+ { "sst25vf040b", 0xbf258d, 64 * 1024, 8, SECT_4K, }, -+ { "sst25vf080b", 0xbf258e, 64 * 1024, 16, SECT_4K, }, -+ { "sst25vf016b", 0xbf2541, 64 * 1024, 32, SECT_4K, }, -+ { "sst25vf032b", 0xbf254a, 64 * 1024, 64, SECT_4K, }, -+ -+ /* ST Microelectronics -- newer production may have feature updates */ -+ { "m25p05", 0x202010, 32 * 1024, 2, }, -+ { "m25p10", 0x202011, 32 * 1024, 4, }, -+ { "m25p20", 0x202012, 64 * 1024, 4, }, -+ { "m25p40", 0x202013, 64 * 1024, 8, }, -+ { "m25p80", 0, 64 * 1024, 16, }, -+ { "m25p16", 0x202015, 64 * 1024, 32, }, -+ { "m25p32", 0x202016, 64 * 1024, 64, }, -+ { "m25p64", 0x202017, 64 * 1024, 128, }, -+ { "m25p128", 0x202018, 256 * 1024, 64, }, -+ -+ { "m45pe80", 0x204014, 64 * 1024, 16, }, -+ { "m45pe16", 0x204015, 64 * 1024, 32, }, -+ -+ { "m25pe80", 0x208014, 64 * 1024, 16, }, -+ { "m25pe16", 0x208015, 64 * 1024, 32, SECT_4K, }, -+ -+ /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ -+ { "w25x10", 0xef3011, 64 * 1024, 2, SECT_4K, }, -+ { "w25x20", 0xef3012, 64 * 1024, 4, SECT_4K, }, -+ { "w25x40", 0xef3013, 64 * 1024, 8, SECT_4K, }, -+ { "w25x80", 0xef3014, 64 * 1024, 16, SECT_4K, }, -+ { "w25x16", 0xef3015, 64 * 1024, 32, SECT_4K, }, -+ { "w25x32", 0xef3016, 64 * 1024, 64, SECT_4K, }, -+ { "w25x64", 0xef3017, 64 * 1024, 128, SECT_4K, }, -+ -+ /* Macronix -- mx25lxxx */ -+ { "mx25l32", 0xc22016, 64 * 1024, 64, }, -+ { "mx25l64", 0xc22017, 64 * 1024, 128, }, -+ { "mx25l128", 0xc22018, 64 * 1024, 256, }, -+ -+}; -+ -+struct flash_info *__devinit jedec_probe(struct platform_device *spi) -+{ -+ int tmp; -+ u32 jedec; -+ struct flash_info *info; -+ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA; -+ -+ /* -+ * Setup and run RDID command on the flash. -+ */ -+ io->ctl1 &= ~IO_XFL_CTL1_MASK; -+ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) | -+ IO_XFL_CTL1_FC_DATA(3); -+ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDID); -+ FLASH_COMMAND_EXEC(io); -+ -+ jedec = io->status1 & 0x00ffffff; -+ -+ for (tmp = 0, info = m25p_data; -+ tmp < ARRAY_SIZE(m25p_data); -+ tmp++, info++) { -+ if (info->jedec_id == jedec) -+ return info; -+ } -+ dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec); -+ return NULL; -+} -+ -+ -+/* -+ * board specific setup should have ensured the SPI clock used here -+ * matches what the READ command supports, at least until this driver -+ * understands FAST_READ (for clocks over 25 MHz). -+ */ -+static int __devinit ubicom32_flash_probe(struct platform_device *spi) -+{ -+ struct flash_platform_data *data; -+ struct m25p *flash; -+ struct flash_info *info; -+ unsigned i; -+ -+ /* Platform data helps sort out which chip type we have, as -+ * well as how this board partitions it. If we don't have -+ * a chip ID, try the JEDEC id commands; they'll work for most -+ * newer chips, even if we don't recognize the particular chip. -+ */ -+ data = spi->dev.platform_data; -+ if (data && data->type) { -+ for (i = 0, info = m25p_data; -+ i < ARRAY_SIZE(m25p_data); -+ i++, info++) { -+ if (strcmp(data->type, info->name) == 0) -+ break; -+ } -+ -+ /* unrecognized chip? */ -+ if (i == ARRAY_SIZE(m25p_data)) { -+ DEBUG(MTD_DEBUG_LEVEL0, "%s: unrecognized id %s\n", -+ spi->dev.bus_id, data->type); -+ info = NULL; -+ -+ /* recognized; is that chip really what's there? */ -+ } else if (info->jedec_id) { -+ struct flash_info *chip = jedec_probe(spi); -+ -+ if (!chip || chip != info) { -+ dev_warn(&spi->dev, "found %s, expected %s\n", -+ chip ? chip->name : "UNKNOWN", -+ info->name); -+ info = NULL; -+ } -+ } -+ } else -+ info = jedec_probe(spi); -+ -+ if (!info) -+ return -ENODEV; -+ -+ flash = kzalloc(sizeof *flash, GFP_KERNEL); -+ if (!flash) -+ return -ENOMEM; -+ -+ flash->plt_dev = spi; -+ mutex_init(&flash->lock); -+ dev_set_drvdata(&spi->dev, flash); -+ -+ if (data && data->name) -+ flash->mtd.name = data->name; -+ else -+ flash->mtd.name = spi->dev.bus_id; -+ -+ flash->mtd.type = MTD_NORFLASH; -+ flash->mtd.writesize = 1; -+ flash->mtd.flags = MTD_CAP_NORFLASH; -+ flash->mtd.size = info->sector_size * info->n_sectors; -+ flash->mtd.erase = ubicom32_flash_driver_erase; -+ flash->mtd.read = ubicom32_flash_driver_read; -+ flash->mtd.write = ubicom32_flash_driver_write; -+ -+ /* prefer "small sector" erase if possible */ -+ /* -+ * The Ubicom erase code does not use the opcode for smaller sectors, -+ * so disable that functionality and keep erasesize == sector_size -+ * so that the test in ubicom32_flash_driver_erase works properly. -+ * -+ * This was: `if (info->flags & SECT_4K) {' instead of `if (0) {' -+ */ -+ if (0) { -+ flash->erase_opcode = OPCODE_BE_4K; -+ flash->mtd.erasesize = 4096; -+ } else { -+ flash->erase_opcode = OPCODE_SE; -+ flash->mtd.erasesize = info->sector_size; -+ } -+ -+ dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name, -+ flash->mtd.size / 1024); -+ -+ DEBUG(MTD_DEBUG_LEVEL2, -+ "mtd .name = %s, .size = 0x%.8x (%uMiB) " -+ ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n", -+ flash->mtd.name, -+ flash->mtd.size, flash->mtd.size / (1024*1024), -+ flash->mtd.erasesize, flash->mtd.erasesize / 1024, -+ flash->mtd.numeraseregions); -+ -+ if (flash->mtd.numeraseregions) -+ for (i = 0; i < flash->mtd.numeraseregions; i++) -+ DEBUG(MTD_DEBUG_LEVEL2, -+ "mtd.eraseregions[%d] = { .offset = 0x%.8x, " -+ ".erasesize = 0x%.8x (%uKiB), " -+ ".numblocks = %d }\n", -+ i, flash->mtd.eraseregions[i].offset, -+ flash->mtd.eraseregions[i].erasesize, -+ flash->mtd.eraseregions[i].erasesize / 1024, -+ flash->mtd.eraseregions[i].numblocks); -+ -+ -+ /* partitions should match sector boundaries; and it may be good to -+ * use readonly partitions for writeprotected sectors (BP2..BP0). -+ */ -+ if (mtd_has_partitions()) { -+ struct mtd_partition *parts = NULL; -+ int nr_parts = 0; -+ -+#ifdef CONFIG_MTD_CMDLINE_PARTS -+ static const char *part_probes[] = { "cmdlinepart", NULL, }; -+ -+ nr_parts = parse_mtd_partitions(&flash->mtd, -+ part_probes, &parts, 0); -+#endif -+ -+ if (nr_parts <= 0 && data && data->parts) { -+ parts = data->parts; -+ nr_parts = data->nr_parts; -+ if (nr_parts >= 2) { -+ /* -+ * Set last partition size to be 1M. -+ */ -+ parts[1].size = flash->mtd.size - -+ parts[0].size - JFFS2_FILESYSTEM_SIZE; -+ parts[2].size = JFFS2_FILESYSTEM_SIZE; -+ } -+ } -+ -+ if (nr_parts > 0) { -+ for (i = 0; i < nr_parts; i++) { -+ DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = " -+ "{.name = %s, .offset = 0x%.8x, " -+ ".size = 0x%.8x (%uKiB) }\n", -+ i, parts[i].name, -+ parts[i].offset, -+ parts[i].size, -+ parts[i].size / 1024); -+ } -+ flash->partitioned = 1; -+ return add_mtd_partitions(&flash->mtd, parts, nr_parts); -+ } -+ } else if (data->nr_parts) -+ dev_warn(&spi->dev, "ignoring %d default partitions on %s\n", -+ data->nr_parts, data->name); -+ -+ return add_mtd_device(&flash->mtd) == 1 ? -ENODEV : 0; -+} -+ -+ -+static int __devexit ubicom32_flash_remove(struct spi_device *spi) -+{ -+ struct m25p *flash = dev_get_drvdata(&spi->dev); -+ int status; -+ -+ /* Clean up MTD stuff. */ -+ if (mtd_has_partitions() && flash->partitioned) -+ status = del_mtd_partitions(&flash->mtd); -+ else -+ status = del_mtd_device(&flash->mtd); -+ if (status == 0) -+ kfree(flash); -+ return 0; -+} -+ -+static struct platform_driver ubicom32_flash_driver = { -+ .driver = { -+ .name = "ubicom32flashdriver", -+ .bus = &platform_bus_type, -+ .owner = THIS_MODULE, -+ }, -+ .probe = ubicom32_flash_probe, -+ .remove = NULL, -+}; -+ -+static int ubicom32_flash_driver_init(void) -+{ -+ return platform_driver_register(&ubicom32_flash_driver); -+} -+ -+ -+static void ubicom32_flash_driver_exit(void) -+{ -+ platform_driver_unregister(&ubicom32_flash_driver); -+} -+ -+ -+module_init(ubicom32_flash_driver_init); -+module_exit(ubicom32_flash_driver_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Mike Lavender"); -+MODULE_DESCRIPTION("Ubicom32 MTD SPI driver for ST M25Pxx flash chips"); ---- a/drivers/net/Kconfig -+++ b/drivers/net/Kconfig -@@ -2463,6 +2463,25 @@ config JME - To compile this driver as a module, choose M here. The module - will be called jme. - -+config UBICOM32_GMAC -+ tristate "Ubicom Gigabit Ethernet support (EXPERIMENTAL)" -+ depends on UBICOM32 -+ help -+ Gigabit Ethernet support for IP5K/IP7K -+ -+config UBICOM32_NAPI -+ bool "USE NAPI (EXPERIMENTAL)" -+ depends on UBICOM32_GMAC -+ help -+ Use NAPI for Ubicom's Ethernet driver -+ -+config UBICOM32_OCM_FOR_SKB -+ bool "USE OCM for SKB (EXPERIMENTAL)" -+ depends on UBICOM32_GMAC -+ default n -+ help -+ Allocate skb from OCM for Ethernet Receive -+ - endif # NETDEV_1000 - - # ---- a/drivers/net/Makefile -+++ b/drivers/net/Makefile -@@ -262,4 +262,4 @@ obj-$(CONFIG_NETXEN_NIC) += netxen/ - obj-$(CONFIG_NIU) += niu.o - obj-$(CONFIG_VIRTIO_NET) += virtio_net.o - obj-$(CONFIG_SFC) += sfc/ -- -+obj-$(CONFIG_UBICOM32_GMAC) += ubi32-eth.o ---- /dev/null -+++ b/drivers/net/ubi32-eth.c -@@ -0,0 +1,699 @@ -+/* -+ * drivers/net/ubi32-eth.c -+ * Ubicom32 ethernet TIO interface driver. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+/* -+ * ubi32_eth.c -+ * Ethernet driver for Ip5k/Ip7K -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/moduleparam.h> -+ -+#include <linux/sched.h> -+#include <linux/kernel.h> -+#include <linux/slab.h> -+#include <linux/errno.h> -+#include <linux/types.h> -+#include <linux/interrupt.h> -+ -+#include <linux/in.h> -+#include <linux/netdevice.h> -+#include <linux/etherdevice.h> -+#include <linux/if_vlan.h> -+#include <linux/ip.h> -+#include <linux/tcp.h> -+#include <linux/skbuff.h> -+#include <asm/checksum.h> -+#include "ubi32-eth.h" -+#include <asm/ip5000.h> -+#include <asm/devtree.h> -+#include <asm/system.h> -+ -+/* #define USE_POLLING */ -+ -+/* -+ * TODO: -+ * mac address from flash -+ * multicast filter -+ * ethtool support -+ * sysfs support -+ * skb->nrfrag support -+ * ioctl -+ * monitor phy status -+ */ -+ -+static const char *eth_if_name[UBI32_ETH_NUM_OF_DEVICES] = -+ {"eth_lan", "eth_wan", "eth_ultra"}; -+static struct net_device *ubi32_eth_devices[UBI32_ETH_NUM_OF_DEVICES] = -+ {NULL, NULL, NULL}; -+static u8_t mac_addr[UBI32_ETH_NUM_OF_DEVICES][ETH_ALEN] = { -+ {0x00, 0x03, 0x64, 'l', 'a', 'n'}, -+ {0x00, 0x03, 0x64, 'w', 'a', 'n'}, -+ {0x00, 0x03, 0x64, 'u', 'l', 't'}}; -+ -+int ubi32_eth_ocm_alloc; -+int ubi32_eth_ddr_alloc; -+ -+static inline struct sk_buff *ubi32_alloc_skb(struct net_device *dev, unsigned int length) -+{ -+#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB)) -+ struct sk_buff *sk_buff; -+ -+ if (dev != ubi32_eth_devices[0]) -+ return __dev_alloc_skb(length, GFP_ATOMIC); -+ -+ sk_buff = __dev_alloc_skb(length, GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA); -+ if (sk_buff) { -+ ubi32_eth_ocm_alloc++; -+ return sk_buff; -+ } else { -+ ubi32_eth_ddr_alloc++; -+ return __dev_alloc_skb(length, GFP_ATOMIC); -+ } -+#else -+ return __dev_alloc_skb(length, GFP_ATOMIC); -+#endif -+} -+ -+static void ubi32_eth_vp_rxtx_enable(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ priv->regs->command = UBI32_ETH_VP_CMD_RX_ENABLE | UBI32_ETH_VP_CMD_TX_ENABLE; -+ priv->regs->int_mask = (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX); -+ ubicom32_set_interrupt(priv->vp_int_bit); -+} -+ -+static void ubi32_eth_vp_rxtx_stop(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ priv->regs->command = 0; -+ priv->regs->int_mask = 0; -+ ubicom32_set_interrupt(priv->vp_int_bit); -+ -+ /* Wait for graceful shutdown */ -+ while (priv->regs->status & (UBI32_ETH_VP_STATUS_RX_STATE | UBI32_ETH_VP_STATUS_TX_STATE)); -+} -+ -+/* -+ * ubi32_eth_tx_done() -+ */ -+static int ubi32_eth_tx_done(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv; -+ struct sk_buff *skb; -+ volatile void *pdata; -+ struct ubi32_eth_dma_desc *desc; -+ u32_t count = 0; -+ -+ priv = netdev_priv(dev); -+ -+ priv->regs->int_status &= ~UBI32_ETH_VP_INT_TX; -+ while (priv->tx_tail != priv->regs->tx_out) { -+ pdata = priv->regs->tx_dma_ring[priv->tx_tail]; -+ BUG_ON(pdata == NULL); -+ -+ skb = container_of((void *)pdata, struct sk_buff, cb); -+ desc = (struct ubi32_eth_dma_desc *)pdata; -+ if (unlikely(!(desc->status & UBI32_ETH_VP_TX_OK))) { -+ atomic_inc((atomic_t *)&priv->stats.tx_errors); -+ } else { -+ priv->stats.tx_packets++; -+ priv->stats.tx_bytes += skb->len; -+ } -+ dev_kfree_skb_any(skb); -+ priv->regs->tx_dma_ring[priv->tx_tail] = NULL; -+ priv->tx_tail = (priv->tx_tail + 1) & TX_DMA_RING_MASK; -+ count++; -+ } -+ -+ if (unlikely(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) { -+ spin_lock(&priv->lock); -+ priv->status &= ~UBI32_ETH_PRIV_STATUS_TX_Q_FULL; -+ netif_wake_queue(dev); -+ spin_unlock(&priv->lock); -+ } -+ return count; -+} -+ -+/* -+ * ubi32_eth_receive() -+ * To avoid locking overhead, this is called only -+ * by tasklet when not using NAPI, or -+ * by NAPI poll when using NAPI. -+ * return number of frames processed -+ */ -+static int ubi32_eth_receive(struct net_device *dev, int quota) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ unsigned short rx_in = priv->regs->rx_in; -+ struct sk_buff *skb; -+ struct ubi32_eth_dma_desc *desc = NULL; -+ volatile void *pdata; -+ -+ /* The number of NET_SKB_PAD bytes are already reserved by skb */ -+ int extra_reserve = UBI32_ETH_RESERVE_SPACE - NET_SKB_PAD + UBI32_ETH_RESERVE_EXTRA; -+ int extra_alloc = extra_reserve + UBI32_ETH_TRASHED_MEMORY; -+ int i, replenish_cnt, count = 0; -+ int replenish_max = RX_DMA_MAX_QUEUE_SIZE; -+#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB)) -+ if (dev == ubi32_eth_devices[0]) -+ replenish_max = 21; -+#endif -+ BUG_ON((extra_reserve & 3) != NET_IP_ALIGN); /* Must provide NET_IP_ALIGN (0 or 2) */ -+ -+ if (unlikely(rx_in == priv->regs->rx_out)) -+ priv->vp_stats.rx_q_full_cnt++; -+ -+ priv->regs->int_status &= ~UBI32_ETH_VP_INT_RX; -+ while (priv->rx_tail != priv->regs->rx_out) { -+ if (unlikely(count == quota)) { -+ /* There is still frame pending to be processed */ -+ priv->vp_stats.rx_throttle++; -+ break; -+ } -+ -+ pdata = priv->regs->rx_dma_ring[priv->rx_tail]; -+ BUG_ON(pdata == NULL); -+ -+ desc = (struct ubi32_eth_dma_desc *)pdata; -+ skb = container_of((void *)pdata, struct sk_buff, cb); -+ count++; -+ priv->regs->rx_dma_ring[priv->rx_tail] = NULL; -+ priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK); -+ -+ /* -+ * Check only RX_OK bit here. -+ * The rest of status word is used as timestamp -+ */ -+ if (unlikely(!(desc->status & UBI32_ETH_VP_RX_OK))) { -+ priv->stats.rx_errors++; -+ dev_kfree_skb_any(skb); -+ continue; -+ } -+ -+ skb_put(skb, desc->data_len); -+ skb->dev = dev; -+ skb->protocol = eth_type_trans(skb, dev); -+ skb->ip_summed = CHECKSUM_NONE; -+ priv->stats.rx_bytes += skb->len; -+ priv->stats.rx_packets++; -+#ifndef CONFIG_UBICOM32_NAPI -+ netif_rx(skb); -+#else -+ netif_receive_skb(skb); -+#endif -+ } -+ -+ /* fill in more descripor for VP*/ -+ replenish_cnt = replenish_max - -+ ((RX_DMA_RING_SIZE + rx_in - priv->rx_tail) & RX_DMA_RING_MASK); -+ if (replenish_cnt > 0) { -+ for (i = 0; i < replenish_cnt; i++) { -+ skb = ubi32_alloc_skb(dev, RX_BUF_SIZE + extra_alloc); -+ if (!skb) { -+ priv->vp_stats.rx_alloc_err++; -+ break; -+ } -+ /* set up dma descriptor */ -+ desc = (struct ubi32_eth_dma_desc *)skb->cb; -+ skb_reserve(skb, extra_reserve); -+ BUG_ON((((u32)skb->data + ETH_HLEN) & (CACHE_LINE_SIZE - 1)) != 0); -+ desc->data_pointer = skb->data; -+ desc->buffer_len = RX_BUF_SIZE + UBI32_ETH_TRASHED_MEMORY; -+ desc->data_len = 0; -+ desc->status = 0; -+ priv->regs->rx_dma_ring[rx_in] = desc; -+ rx_in = (rx_in + 1) & RX_DMA_RING_MASK; -+ } -+ wmb(); -+ priv->regs->rx_in = rx_in; -+ ubicom32_set_interrupt(priv->vp_int_bit); -+ } -+ -+ if (likely(count > 0)) { -+ dev->last_rx = jiffies; -+ } -+ return count; -+} -+ -+#ifdef CONFIG_UBICOM32_NAPI -+static int ubi32_eth_napi_poll(struct napi_struct *napi, int budget) -+{ -+ struct ubi32_eth_private *priv = container_of(napi, struct ubi32_eth_private, napi); -+ struct net_device *dev = priv->dev; -+ u32_t count; -+ -+ if (priv->tx_tail != priv->regs->tx_out) { -+ ubi32_eth_tx_done(dev); -+ } -+ -+ count = ubi32_eth_receive(dev, budget); -+ -+ priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX); -+ if (count < budget) { -+ netif_rx_complete(dev, napi); -+ if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) { -+ if (netif_rx_reschedule(dev, napi)) { -+ priv->regs->int_mask = 0; -+ } -+ } -+ } -+ return count; -+} -+ -+#else -+static void ubi32_eth_do_tasklet(unsigned long arg) -+{ -+ struct net_device *dev = (struct net_device *)arg; -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ -+ if (priv->tx_tail != priv->regs->tx_out) { -+ ubi32_eth_tx_done(dev); -+ } -+ -+ /* always call receive to process new RX frame as well as replenish RX buffers */ -+ ubi32_eth_receive(dev, RX_BOUND); -+ -+ priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX); -+ if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) { -+ priv->regs->int_mask = 0; -+ tasklet_schedule(&priv->tsk); -+ } -+} -+#endif -+ -+#if defined(USE_POLLING) -+static struct timer_list eth_poll_timer; -+ -+static void ubi32_eth_poll(unsigned long arg) -+{ -+ struct net_device *dev; -+ struct ubi32_eth_private *priv; -+ int i; -+ -+ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) { -+ dev = ubi32_eth_devices[i]; -+ if (dev && (dev->flags & IFF_UP)) { -+ priv = netdev_priv(dev); -+#ifdef CONFIG_UBICOM32_NAPI -+ netif_rx_schedule(dev, &priv->napi); -+#else -+ tasklet_schedule(&priv->tsk); -+#endif -+ } -+ } -+ -+ eth_poll_timer.expires = jiffies + 2; -+ add_timer(ð_poll_timer); -+} -+ -+#else -+static irqreturn_t ubi32_eth_interrupt(int irq, void *dev_id) -+{ -+ struct ubi32_eth_private *priv; -+ -+ struct net_device *dev = (struct net_device *)dev_id; -+ BUG_ON(irq != dev->irq); -+ -+ priv = netdev_priv(dev); -+ if (unlikely(!(priv->regs->int_status & priv->regs->int_mask))) { -+ return IRQ_NONE; -+ } -+ -+ /* -+ * Disable port interrupt -+ */ -+#ifdef CONFIG_UBICOM32_NAPI -+ if (netif_rx_schedule_prep(dev, &priv->napi)) { -+ priv->regs->int_mask = 0; -+ __netif_rx_schedule(dev, &priv->napi); -+ } -+#else -+ priv->regs->int_mask = 0; -+ tasklet_schedule(&priv->tsk); -+#endif -+ return IRQ_HANDLED; -+} -+#endif -+ -+/* -+ * ubi32_eth_open -+ */ -+static int ubi32_eth_open(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ int err; -+ -+ printk(KERN_INFO "eth open %s\n",dev->name); -+#ifndef USE_POLLING -+ /* request_region() */ -+ err = request_irq(dev->irq, ubi32_eth_interrupt, IRQF_DISABLED, dev->name, dev); -+ if (err) { -+ printk(KERN_WARNING "fail to request_irq %d\n",err); -+ return -ENODEV; -+ } -+#endif -+#ifdef CONFIG_UBICOM32_NAPI -+ napi_enable(&priv->napi); -+#else -+ tasklet_init(&priv->tsk, ubi32_eth_do_tasklet, (unsigned long)dev); -+#endif -+ -+ /* call receive to supply RX buffers */ -+ ubi32_eth_receive(dev, RX_DMA_MAX_QUEUE_SIZE); -+ -+ /* check phy status and call netif_carrier_on */ -+ ubi32_eth_vp_rxtx_enable(dev); -+ netif_start_queue(dev); -+ return 0; -+} -+ -+static int ubi32_eth_close(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ volatile void *pdata; -+ struct sk_buff *skb; -+ -+#ifndef USE_POLLING -+ free_irq(dev->irq, dev); -+#endif -+ netif_stop_queue(dev); /* can't transmit any more */ -+#ifdef CONFIG_UBICOM32_NAPI -+ napi_disable(&priv->napi); -+#else -+ tasklet_kill(&priv->tsk); -+#endif -+ ubi32_eth_vp_rxtx_stop(dev); -+ -+ /* -+ * RX clean up -+ */ -+ while (priv->rx_tail != priv->regs->rx_in) { -+ pdata = priv->regs->rx_dma_ring[priv->rx_tail]; -+ skb = container_of((void *)pdata, struct sk_buff, cb); -+ priv->regs->rx_dma_ring[priv->rx_tail] = NULL; -+ dev_kfree_skb_any(skb); -+ priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK); -+ } -+ priv->regs->rx_in = 0; -+ priv->regs->rx_out = priv->regs->rx_in; -+ priv->rx_tail = priv->regs->rx_in; -+ -+ /* -+ * TX clean up -+ */ -+ BUG_ON(priv->regs->tx_out != priv->regs->tx_in); -+ ubi32_eth_tx_done(dev); -+ BUG_ON(priv->tx_tail != priv->regs->tx_in); -+ priv->regs->tx_in = 0; -+ priv->regs->tx_out = priv->regs->tx_in; -+ priv->tx_tail = priv->regs->tx_in; -+ -+ return 0; -+} -+ -+/* -+ * ubi32_eth_set_config -+ */ -+static int ubi32_eth_set_config(struct net_device *dev, struct ifmap *map) -+{ -+ /* if must to down to config it */ -+ printk(KERN_INFO "set_config %x\n", dev->flags); -+ if (dev->flags & IFF_UP) -+ return -EBUSY; -+ -+ /* I/O and IRQ can not be changed */ -+ if (map->base_addr != dev->base_addr) { -+ printk(KERN_WARNING "%s: Can't change I/O address\n", dev->name); -+ return -EOPNOTSUPP; -+ } -+ -+#ifndef USE_POLLING -+ if (map->irq != dev->irq) { -+ printk(KERN_WARNING "%s: Can't change IRQ\n", dev->name); -+ return -EOPNOTSUPP; -+ } -+#endif -+ -+ /* ignore other fields */ -+ return 0; -+} -+ -+static int ubi32_eth_start_xmit(struct sk_buff *skb, struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ struct ubi32_eth_dma_desc *desc = NULL; -+ unsigned short space, tx_in; -+ -+ tx_in = priv->regs->tx_in; -+ -+ dev->trans_start = jiffies; /* save the timestamp */ -+ space = TX_DMA_RING_MASK - ((TX_DMA_RING_SIZE + tx_in - priv->tx_tail) & TX_DMA_RING_MASK); -+ -+ if (unlikely(space == 0)) { -+ atomic_inc((atomic_t *)&priv->stats.tx_errors); -+ if (!(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) { -+ spin_lock(&priv->lock); -+ priv->status |= UBI32_ETH_PRIV_STATUS_TX_Q_FULL; -+ priv->vp_stats.tx_q_full_cnt++; -+ netif_stop_queue(dev); -+ spin_unlock(&priv->lock); -+ } -+ -+ /* give both HW and this driver an extra trigger */ -+ priv->regs->int_mask |= UBI32_ETH_VP_INT_TX; -+#ifndef USE_POLLING -+ ubicom32_set_interrupt(dev->irq); -+#endif -+ ubicom32_set_interrupt(priv->vp_int_bit); -+ -+ return NETDEV_TX_BUSY; -+ } -+ -+ /*still have room */ -+ desc = (struct ubi32_eth_dma_desc *)skb->cb; -+ desc->data_pointer = skb->data; -+ desc->data_len = skb->len; -+ priv->regs->tx_dma_ring[tx_in] = desc; -+ tx_in = ((tx_in + 1) & TX_DMA_RING_MASK); -+ wmb(); -+ priv->regs->tx_in = tx_in; -+ /* kick the HRT */ -+ ubicom32_set_interrupt(priv->vp_int_bit); -+ -+ return 0; -+} -+ -+/* -+ * Deal with a transmit timeout. -+ */ -+static void ubi32_eth_tx_timeout (struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ atomic_inc((atomic_t *)&priv->stats.tx_errors); -+ priv->regs->int_mask |= UBI32_ETH_VP_INT_TX; -+#ifndef USE_POLLING -+ ubicom32_set_interrupt(dev->irq); -+#endif -+ ubicom32_set_interrupt(priv->vp_int_bit); -+} -+ -+static int ubi32_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -+{ -+ printk(KERN_INFO "ioctl %s, %d\n", dev->name, cmd); -+ return -EINVAL; -+} -+ -+/* -+ * Return statistics to the caller -+ */ -+static struct net_device_stats *ubi32_eth_get_stats(struct net_device *dev) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ return &priv->stats; -+} -+ -+ -+static int ubi32_eth_change_mtu(struct net_device *dev, int new_mtu) -+{ -+ struct ubi32_eth_private *priv = netdev_priv(dev); -+ unsigned long flags; -+ -+ if ((new_mtu < 68) || (new_mtu > 1500)) -+ return -EINVAL; -+ -+ spin_lock_irqsave(&priv->lock, flags); -+ dev->mtu = new_mtu; -+ spin_unlock_irqrestore(&priv->lock, flags); -+ printk(KERN_INFO "set mtu to %d", new_mtu); -+ return 0; -+} -+ -+/* -+ * ubi32_eth_cleanup: unload the module -+ */ -+void ubi32_eth_cleanup(void) -+{ -+ struct ubi32_eth_private *priv; -+ struct net_device *dev; -+ int i; -+ -+ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) { -+ dev = ubi32_eth_devices[i]; -+ if (dev) { -+ priv = netdev_priv(dev); -+ kfree(priv->regs->tx_dma_ring); -+ unregister_netdev(dev); -+ free_netdev(dev); -+ ubi32_eth_devices[i] = NULL; -+ } -+ } -+} -+ -+int ubi32_eth_init_module(void) -+{ -+ struct ethtionode *eth_node; -+ struct net_device *dev; -+ struct ubi32_eth_private *priv; -+ int i, err; -+ -+ /* -+ * Device allocation. -+ */ -+ err = 0; -+ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) { -+ /* -+ * See if the eth_vp is in the device tree. -+ */ -+ eth_node = (struct ethtionode *)devtree_find_node(eth_if_name[i]); -+ if (!eth_node) { -+ printk(KERN_INFO "%s does not exist\n", eth_if_name[i]); -+ continue; -+ } -+ -+ eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc( -+ sizeof(struct ubi32_eth_dma_desc *) * -+ (TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA); -+ -+ if (eth_node->tx_dma_ring == NULL) { -+ eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc( -+ sizeof(struct ubi32_eth_dma_desc *) * -+ (TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_KERNEL); -+ printk(KERN_INFO "Failed to allocate from OCM\n"); -+ } -+ -+ if (!eth_node->tx_dma_ring) { -+ err = -ENOMEM; -+ break; -+ } -+ eth_node->rx_dma_ring = eth_node->tx_dma_ring + TX_DMA_RING_SIZE; -+ eth_node->tx_sz = TX_DMA_RING_SIZE - 1; -+ eth_node->rx_sz = RX_DMA_RING_SIZE - 1; -+ -+ dev = alloc_etherdev(sizeof(struct ubi32_eth_private)); -+ if (!dev) { -+ kfree(eth_node->tx_dma_ring); -+ err = -ENOMEM; -+ break; -+ } -+ priv = netdev_priv(dev); -+ priv->dev = dev; -+ -+ /* -+ * FIX IT! get proper mac address -+ */ -+ memcpy(dev->dev_addr, mac_addr[i], ETH_ALEN); -+ -+ priv->regs = eth_node; -+ priv->regs->command = 0; -+ priv->regs->int_mask = 0; -+ priv->regs->int_status = 0; -+ priv->regs->tx_out = 0; -+ priv->regs->rx_out = 0; -+ priv->regs->tx_in = 0; -+ priv->regs->rx_in = 0; -+ priv->rx_tail = 0; -+ priv->tx_tail = 0; -+ -+ priv->vp_int_bit = eth_node->dn.sendirq; -+ dev->irq = eth_node->dn.recvirq; -+ -+ spin_lock_init(&priv->lock); -+ -+ dev->open = ubi32_eth_open; -+ dev->stop = ubi32_eth_close; -+ dev->hard_start_xmit = ubi32_eth_start_xmit; -+ dev->tx_timeout = ubi32_eth_tx_timeout; -+ dev->watchdog_timeo = UBI32_ETH_VP_TX_TIMEOUT; -+ -+ dev->set_config = ubi32_eth_set_config; -+ dev->do_ioctl = ubi32_eth_ioctl; -+ dev->get_stats = ubi32_eth_get_stats; -+ dev->change_mtu = ubi32_eth_change_mtu; -+#ifdef CONFIG_UBICOM32_NAPI -+ netif_napi_add(dev, &priv->napi, ubi32_eth_napi_poll, UBI32_ETH_NAPI_WEIGHT); -+#endif -+ err = register_netdev(dev); -+ if (err) { -+ printk(KERN_WARNING "Failed to register netdev %s\n", eth_if_name[i]); -+ //release_region(); -+ free_netdev(dev); -+ kfree(eth_node->tx_dma_ring); -+ break; -+ } -+ -+ ubi32_eth_devices[i] = dev; -+ printk(KERN_INFO "%s vp_base:0x%p, tio_int:%d irq:%d\n", -+ dev->name, priv->regs, eth_node->dn.sendirq, dev->irq); -+ } -+ -+ if (err) { -+ ubi32_eth_cleanup(); -+ return err; -+ } -+ -+ if (!ubi32_eth_devices[0] && !ubi32_eth_devices[1] && !ubi32_eth_devices[2]) { -+ return -ENODEV; -+ } -+ -+#if defined(USE_POLLING) -+ init_timer(ð_poll_timer); -+ eth_poll_timer.function = ubi32_eth_poll; -+ eth_poll_timer.data = (unsigned long)0; -+ eth_poll_timer.expires = jiffies + 2; -+ add_timer(ð_poll_timer); -+#endif -+ -+ return 0; -+} -+ -+module_init(ubi32_eth_init_module); -+module_exit(ubi32_eth_cleanup); -+ -+MODULE_AUTHOR("Kan Yan, Greg Ren"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/drivers/net/ubi32-eth.h -@@ -0,0 +1,133 @@ -+/* -+ * drivers/net/ubi32-eth.h -+ * Ubicom32 ethernet TIO interface driver definitions. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#ifndef _UBI32_ETH_H -+#define _UBI32_ETH_H -+ -+#include <asm/devtree.h> -+ -+#define UBI32_ETH_NUM_OF_DEVICES 3 -+ -+/* -+ * Number of bytes trashed beyond the packet data. -+ */ -+#define UBI32_ETH_TRASHED_MEMORY (CACHE_LINE_SIZE + ETH_HLEN - 1) -+ -+/* -+ * Linux already reserves NET_SKB_PAD bytes of headroom in each sk_buff. -+ * We want to be able to reserve arbitrarily more space to align Ethernet -+ * and IP header to cache line. -+ * Note that the TIO expects a CACHE_LINE_SIZE - ETH_HLEN aligned Ethernet -+ * header, so the reserved space must be NET_SKB_PAD + NET_IP_ALIGN. -+ * (NET_SKB_PAD is 16, NET_IP_ALIGN is 2, CACHE_LINE_SIZE is 32). -+ * You can add more space by making UBI32_ETH_iRESERVE_EXTRA != 0. -+ */ -+#define UBI32_ETH_RESERVE_SPACE (CACHE_LINE_SIZE - ETH_HLEN) -+#define UBI32_ETH_RESERVE_EXTRA (1 * CACHE_LINE_SIZE) -+ -+struct ubi32_eth_dma_desc { -+ volatile void *data_pointer; /* pointer to the buffer */ -+ volatile u16 buffer_len; /* the buffer size */ -+ volatile u16 data_len; /* actual frame length */ -+ volatile u32 status; /* bit0: status to be update by VP; bit[31:1] time stamp */ -+}; -+ -+#define TX_DMA_RING_SIZE (1<<8) -+#define TX_DMA_RING_MASK (TX_DMA_RING_SIZE - 1) -+#define RX_DMA_RING_SIZE (1<<8) -+#define RX_DMA_RING_MASK (RX_DMA_RING_SIZE - 1) -+ -+#define RX_DMA_MAX_QUEUE_SIZE (RX_DMA_RING_SIZE - 1) /* no more than (RX_DMA_RING_SIZE - 1) */ -+#define RX_MAX_PKT_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN) -+#define RX_MIN_PKT_SIZE ETH_ZLEN -+#define RX_BUF_SIZE (RX_MAX_PKT_SIZE + VLAN_HLEN) /* allow double VLAN tag */ -+ -+#define UBI32_ETH_VP_TX_TIMEOUT (10*HZ) -+ -+struct ubi32_eth_vp_stats { -+ u32 rx_alloc_err; -+ u32 tx_q_full_cnt; -+ u32 rx_q_full_cnt; -+ u32 rx_throttle; -+}; -+ -+struct ubi32_eth_private { -+ struct net_device *dev; -+ struct net_device_stats stats; -+ struct ubi32_eth_vp_stats vp_stats; -+ int status; -+ spinlock_t lock; -+#ifdef CONFIG_UBICOM32_NAPI -+ struct napi_struct napi; -+#else -+ struct tasklet_struct tsk; -+#endif -+ struct ethtionode *regs; -+ u16 rx_tail; -+ u16 tx_tail; -+ u32 vp_int_bit; -+}; -+ -+struct ethtionode { -+ struct devtree_node dn; -+ volatile u16 command; -+ volatile u16 status; -+ volatile u16 int_mask; /* interrupt mask */ -+ volatile u16 int_status; /* interrupt mask */ -+ volatile u16 tx_in; /* owned by driver */ -+ volatile u16 tx_out; /* owned by vp */ -+ volatile u16 rx_in; /* owned by driver */ -+ volatile u16 rx_out; /* owned by vp */ -+ u16 tx_sz; /* owned by driver */ -+ u16 rx_sz; /* owned by driver */ -+ struct ubi32_eth_dma_desc **tx_dma_ring; -+ struct ubi32_eth_dma_desc **rx_dma_ring; -+}; -+ -+#define UBI32_ETH_VP_STATUS_LINK (1<<0) -+#define UBI32_ETH_VP_STATUS_SPEED (0x2<<1) -+#define UBI32_ETH_VP_STATUS_DUPLEX (0x1<<3) -+#define UBI32_ETH_VP_STATUS_FLOW_CTRL (0x1<<4) -+ -+#define UBI32_ETH_VP_STATUS_RX_STATE (0x1<<5) -+#define UBI32_ETH_VP_STATUS_TX_STATE (0x1<<6) -+ -+#define UBI32_ETH_PRIV_STATUS_TX_Q_FULL (1<<0) -+ -+#define UBI32_ETH_VP_INT_RX (1<<0) -+#define UBI32_ETH_VP_INT_TX (1<<1) -+ -+#define UBI32_ETH_VP_CMD_RX_ENABLE (1<<0) -+#define UBI32_ETH_VP_CMD_TX_ENABLE (1<<1) -+ -+#define UBI32_ETH_VP_RX_OK (1<<0) -+#define UBI32_ETH_VP_TX_OK (1<<1) -+ -+#define TX_BOUND TX_DMA_RING_SIZE -+#define RX_BOUND 64 -+#define UBI32_ETH_NAPI_WEIGHT 64 /* for GigE */ -+#endif ---- a/drivers/net/usb/asix.c -+++ b/drivers/net/usb/asix.c -@@ -318,14 +318,33 @@ static int asix_rx_fixup(struct usbnet * - /* get the packet length */ - size = (u16) (header & 0x0000ffff); - -- if ((skb->len) - ((size + 1) & 0xfffe) == 0) -+ if ((skb->len) - ((size + 1) & 0xfffe) == 0) { -+#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS -+ if (((u32)packet & 0x02) == 0) { -+ memmove(packet - 2, packet, size); -+ skb->data -= 2; -+ skb->tail -= 2; -+ } -+#endif - return 2; -+ } -+ - if (size > ETH_FRAME_LEN) { - deverr(dev,"asix_rx_fixup() Bad RX Length %d", size); - return 0; - } - ax_skb = skb_clone(skb, GFP_ATOMIC); - if (ax_skb) { -+#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS -+ if (((u32)packet & 0x02) == 0) { -+ memmove(packet - 2, packet, size); -+ ax_skb->data = packet - 2; -+ } else { -+ ax_skb->data = packet; -+ } -+#else -+ ax_skb->data = packet; -+#endif - ax_skb->len = size; - ax_skb->data = packet; - skb_set_tail_pointer(ax_skb, size); -@@ -1102,13 +1121,19 @@ static int ax88178_link_reset(struct usb - mode = AX88178_MEDIUM_DEFAULT; - - if (ecmd.speed == SPEED_1000) -+#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS - mode |= AX_MEDIUM_GM; -+#else -+ mode |= AX_MEDIUM_GM | AX_MEDIUM_ENCK; -+#endif - else if (ecmd.speed == SPEED_100) - mode |= AX_MEDIUM_PS; - else - mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM); - -+#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS - mode |= AX_MEDIUM_ENCK; -+#endif - - if (ecmd.duplex == DUPLEX_FULL) - mode |= AX_MEDIUM_FD; ---- a/drivers/oprofile/cpu_buffer.c -+++ b/drivers/oprofile/cpu_buffer.c -@@ -240,10 +240,11 @@ static void oprofile_end_trace(struct op - cpu_buf->tracing = 0; - } - --void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, -- unsigned long event, int is_kernel) -+ -+void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs, -+ unsigned long event, int is_kernel, int cpu) - { -- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer); -+ struct oprofile_cpu_buffer *cpu_buf = &per_cpu(cpu_buffer, cpu); - - if (!backtrace_depth) { - log_sample(cpu_buf, pc, is_kernel, event); -@@ -260,6 +261,13 @@ void oprofile_add_ext_sample(unsigned lo - oprofile_end_trace(cpu_buf); - } - -+void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, -+ unsigned long event, int is_kernel) -+{ -+ oprofile_add_ext_sample_cpu(pc, regs, event, -+ is_kernel, smp_processor_id()); -+} -+ - void oprofile_add_sample(struct pt_regs * const regs, unsigned long event) - { - int is_kernel = !user_mode(regs); ---- a/drivers/pci/Makefile -+++ b/drivers/pci/Makefile -@@ -42,8 +42,8 @@ obj-$(CONFIG_PPC) += setup-bus.o - obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o - obj-$(CONFIG_X86_VISWS) += setup-irq.o - obj-$(CONFIG_MN10300) += setup-bus.o -+obj-$(CONFIG_UBICOM32) += setup-bus.o setup-irq.o - --# - # ACPI Related PCI FW Functions - # - obj-$(CONFIG_ACPI) += pci-acpi.o ---- a/drivers/serial/Kconfig -+++ b/drivers/serial/Kconfig -@@ -827,6 +827,57 @@ config SERIAL_UARTLITE_CONSOLE - console (the system console is the device which receives all kernel - messages and warnings and which allows logins in single user mode). - -+config SERIAL_UBI32_UARTTIO -+ tristate "Ubicom UARTTIO support" -+ depends on UBICOM32=y -+ select SERIAL_CORE -+ default y -+ help -+ Add support for the Ubicom virtual peripherial serial interface. -+ -+config SERIAL_UBI32_UARTTIO_NR_UARTS -+ int "Maximum number of UARTTIO virtual serial ports" -+ depends on SERIAL_UBI32_UARTTIO -+ default "4" -+ help -+ Set this to the maximum number of serial ports you want the driver to support. -+ -+config SERIAL_UBI32_UARTTIO_CONSOLE -+ tristate "Ubicom UARTTIO console support" -+ depends on SERIAL_UBI32_UARTTIO=y -+ select SERIAL_CORE_CONSOLE -+ default y -+ help -+ Add support for console on the Ubicom virtual peripherial serial interface. -+ -+config SERIAL_UBI32_SERDES -+ bool "Ubicom serial port support" -+ depends on UBICOM32=y -+ select SERIAL_CORE -+ default y -+ help -+ Add support for the Ubicom serial interface. -+ -+config SERIAL_UBI32_SERDES_CONSOLE -+ bool "Ubicom serial console support" -+ depends on SERIAL_UBI32_SERDES=y -+ select SERIAL_CORE_CONSOLE -+ default y -+ -+config SERIAL_UBI32_MAILBOX -+ bool "Ubicom mailbox support" -+ depends on UBICOM32=y -+ select SERIAL_CORE -+ default n -+ help -+ Add support for the Ubicom mailbox interface. -+ -+config SERIAL_UBI32_MAILBOX_CONSOLE -+ bool "Ubicom mailbox console support" -+ depends on SERIAL_UBI32_MAILBOX=y -+ select SERIAL_CORE_CONSOLE -+ default y -+ - config SERIAL_SUNCORE - bool - depends on SPARC ---- a/drivers/serial/Makefile -+++ b/drivers/serial/Makefile -@@ -73,3 +73,6 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_s - obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o - obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o - obj-$(CONFIG_SERIAL_QE) += ucc_uart.o -+obj-$(CONFIG_SERIAL_UBI32_SERDES) += ubi32_serdes.o -+obj-$(CONFIG_SERIAL_UBI32_UARTTIO) += ubi32_uarttio.o -+obj-$(CONFIG_SERIAL_UBI32_MAILBOX) += ubi32_mailbox.o ---- /dev/null -+++ b/drivers/serial/ubi32_mailbox.c -@@ -0,0 +1,928 @@ -+/* -+ * drivers/serial/ubi32_mailbox.c -+ * Ubicom32 On-Chip Mailbox Driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/ioport.h> -+#include <linux/init.h> -+#include <linux/console.h> -+#include <linux/sysrq.h> -+#include <linux/platform_device.h> -+#include <linux/tty.h> -+#include <linux/tty_flip.h> -+#include <linux/serial_core.h> -+ -+#include <asm/ip5000.h> -+ -+#define SERIAL_UBICOM_BAUDRATE 115200 -+#define SERIAL_UBICOM_DATA_BIT 8 /* Fixed parameter - do not change */ -+#define SERIAL_UBICOM_PAR_BIT 0 /* Fixed parameter - do not change */ -+#define SERIAL_UBICOM_STOP_BIT 1 /* Fixed parameter - do not change */ -+ -+/* UART name and device definitions */ -+#define UBI32_MAILBOX_NAME "ttyUM" // XXX -+#define UBI32_MAILBOX_MAJOR 207 // XXX -+#define UBI32_MAILBOX_MINOR 64 -+ -+#define PORT_UBI32_MAILBOX 1235 -+#define NR_PORTS 1 -+ -+#define get_sclk() 0 -+ -+struct ubi32_mailbox_port { -+ struct uart_port port; -+ /* -+ * NOTE (rkeller): -+ * the uart port is wrapped in another structure in case we need to hold more state than -+ * what we can hold in the uart_port. -+ * Not sure if we need this, I took over the concept from the blackfin driver. -+ */ -+} ubi32_mailbox_ports[NR_PORTS]; -+ -+struct ubi32_mailbox_resource { -+ int uart_base_addr; -+ int uart_irq; -+} ubi32_mailbox_resource[NR_PORTS] = { -+ /* -+ * uart_base_addr has to be non-NULL because it is put in the uart_port membase. -+ * If membase if null the kernel skips the configuration and our port_type never gets set. -+ */ -+ {ISD_MAILBOX_BASE, ISD_MAILBOX_INT} -+}; -+ -+static volatile struct ubicom32_isd_mailbox { -+ volatile u32_t in; -+ volatile u32_t out; -+ volatile u32_t status; -+} *ubi32_mailbox = (struct ubicom32_isd_mailbox *)ISD_MAILBOX_BASE; -+ -+static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart); -+ -+static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart); -+ -+#define TRUE 1 -+#define FALSE 0 -+ -+static int mailbox_console_flg = TRUE; -+static int num_timeouts = 0; -+ -+/* -+ * dummy functions and defined to be able to compile the Blackfin code -+ */ -+#define UART_GET_LSR(port) (1) -+#define UART_PUT_LSR(port, bits) -+#define UART_CLEAR_LSR(port) (1) -+#define TEMT 1 -+#define TFI 1 -+#define BI 1 -+#define PE 1 -+#define OE 1 -+#define FE 1 -+#define THRE 1 -+#define DR 1 -+#define UART_GET_LCR(port) (1) -+#define UART_PUT_LCR(port, bits) -+#define SB 1 -+#define STB 1 -+#define PEN 1 -+#define EPS 1 -+#define STP 1 -+#define WLS(n) 0 -+#define UART_GET_IER(port) (1) -+#define UART_SET_IER(port, bits) -+#define UART_CLEAR_IER(port, bits) -+#define ETBEI 0 -+#define ERBFI 0 -+#define UART_GET_CHAR(port) ubi32_mailbox_get_char() -+#define UART_PUT_CHAR(port, ch) ubi32_mailbox_put_char(ch) -+#define SSYNC() -+#define UART_GET_DLL(port) 0 -+#define UART_PUT_DLL(port, ch) -+#define UART_GET_DLH(port) 0 -+#define UART_PUT_DLH(port, ch) -+#define UART_GET_GCTL(port) (0) -+#define UART_PUT_GCTL(port, ch) -+#define UCEN 1 -+ -+/* -+ * ubi32_mailbox_get_char_avail() -+ */ -+static int ubi32_mailbox_get_char_avail(void) -+{ -+ return !(ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY); -+} -+ -+/* -+ * ubi32_mailbox_get_char() -+ */ -+static u32_t ubi32_mailbox_get_char(void) -+{ -+ if (mailbox_console_flg == TRUE) { -+ /* -+ * Mailbox console is connected. -+ */ -+ while (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY); -+ return ubi32_mailbox->in & 0xff; -+ } -+ -+ /* -+ * Mailbox console was not connected. -+ */ -+ if (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY) { -+ return 0xff; -+ } -+ -+ /* -+ * Mailbox console is connecting. -+ */ -+ mailbox_console_flg = TRUE; -+ num_timeouts = 0; -+ return ubi32_mailbox->in & 0xff; -+} -+ -+#define MAILBOX_MAX_ATTEMPTS 1000000 -+#define MAILBOX_MAX_TIMEOUTS 5 -+/* -+ * ubi32_mailbox_put_char() -+ */ -+static void ubi32_mailbox_put_char(u32_t v) -+{ -+ /* -+ * Wait to be able to output. -+ */ -+ u32_t num_attempts = 0; -+ -+ if(mailbox_console_flg == TRUE) { -+ while(num_attempts++ < MAILBOX_MAX_ATTEMPTS) { -+ if(ubi32_mailbox->status & ISD_MAILBOX_STATUS_OUT_EMPTY) { -+ break; -+ } -+ } -+ -+ /* -+ * If timed out more than 5 times on send, mailbox console is disconnected now. -+ */ -+ if (num_attempts > MAILBOX_MAX_ATTEMPTS) { -+ if (num_timeouts++ > MAILBOX_MAX_TIMEOUTS) { -+ mailbox_console_flg = FALSE; -+ } -+ } -+ } -+ -+ asm volatile( -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ "pipe_flush 0 \n\t" -+ ); -+ -+ ubi32_mailbox->out = v & 0xff; -+} -+ -+static void ubi32_mailbox_hw_init(struct ubi32_mailbox_port *uart) -+{ -+// NOTE: It does not do any good to do these here because we are running on the linux hardware thread, -+// and these have to be called on the ldsr thread. -+// ubicom32_clear_interrupt(ISD_MAILBOX_INT); -+// ubicom32_enable_interrupt(ISD_MAILBOX_INT); -+} -+ -+/* -+ * interrupts are disabled on entry -+ */ -+static void ubi32_mailbox_stop_tx(struct uart_port *port) -+{ -+// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+// struct circ_buf *xmit = &uart->port.info->xmit; -+ -+ while (!(UART_GET_LSR(uart) & TEMT)) -+ cpu_relax(); -+ -+ /* Clear TFI bit */ -+ UART_PUT_LSR(uart, TFI); -+ UART_CLEAR_IER(uart, ETBEI); -+} -+ -+/* -+ * port is locked and interrupts are disabled -+ */ -+static void ubi32_mailbox_start_tx(struct uart_port *port) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ -+ UART_SET_IER(uart, ETBEI); -+ -+ ubi32_mailbox_tx_chars(uart); -+} -+ -+/* -+ * Interrupts are enabled -+ */ -+static void ubi32_mailbox_stop_rx(struct uart_port *port) -+{ -+// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ UART_CLEAR_IER(uart, ERBFI); -+} -+ -+/* -+ * Set the modem control timer to fire immediately. -+ */ -+static void ubi32_mailbox_enable_ms(struct uart_port *port) -+{ -+} -+ -+static void ubi32_mailbox_rx_chars(struct ubi32_mailbox_port *uart) -+{ -+ struct uart_info *info = uart->port.info; -+ struct tty_struct *tty = info->port.tty; -+ unsigned int status, ch, flg; -+ -+ status = 0; // XXX? UART_GET_LSR(uart); -+ UART_CLEAR_LSR(uart); -+ -+ ch = UART_GET_CHAR(uart); -+ -+ if(ch == 0xff) -+ return; -+ -+ uart->port.icount.rx++; -+ -+ if (status & BI) { -+ uart->port.icount.brk++; -+ if (uart_handle_break(&uart->port)) -+ goto ignore_char; -+ status &= ~(PE | FE); -+ } -+ if (status & PE) -+ uart->port.icount.parity++; -+ if (status & OE) -+ uart->port.icount.overrun++; -+ if (status & FE) -+ uart->port.icount.frame++; -+ -+ status &= uart->port.read_status_mask; -+ -+ if (status & BI) -+ flg = TTY_BREAK; -+ else if (status & PE) -+ flg = TTY_PARITY; -+ else if (status & FE) -+ flg = TTY_FRAME; -+ else -+ flg = TTY_NORMAL; -+ -+ if (uart_handle_sysrq_char(&uart->port, ch)) -+ goto ignore_char; -+ -+ uart_insert_char(&uart->port, status, OE, ch, flg); -+ -+ ignore_char: -+ tty_flip_buffer_push(tty); -+} -+ -+static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart) -+{ -+ struct circ_buf *xmit = &uart->port.info->xmit; -+ -+ if (uart->port.x_char) { -+ UART_PUT_CHAR(uart, uart->port.x_char); -+ uart->port.icount.tx++; -+ uart->port.x_char = 0; -+ } -+ /* -+ * Check the modem control lines before -+ * transmitting anything. -+ */ -+ ubi32_mailbox_mctrl_check(uart); -+ -+ if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { -+ ubi32_mailbox_stop_tx(&uart->port); -+ return; -+ } -+ -+ while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) { -+ UART_PUT_CHAR(uart, xmit->buf[xmit->tail]); -+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); -+ uart->port.icount.tx++; -+ SSYNC(); -+ } -+ -+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) -+ uart_write_wakeup(&uart->port); -+ -+ if (uart_circ_empty(xmit)) -+ ubi32_mailbox_stop_tx(&uart->port); -+} -+ -+static irqreturn_t ubi32_mailbox_isr(int irq, void *dev_id) -+{ -+ struct ubi32_mailbox_port *uart = dev_id; -+ -+ spin_lock(&uart->port.lock); -+ -+ //XXX?while (UART_GET_LSR(uart) & DR) -+ -+ /* -+ * RX process -+ */ -+ while (ubi32_mailbox_get_char_avail()) { -+ ubi32_mailbox_rx_chars(uart); -+ } -+ -+#if 0 -+ /* -+ * TX process -+ */ -+ if (this_uart.tx_in == this_uart.tx_out) { -+ UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask &= ~IO_PORTX_INT_SERDES_TXBE; -+ } else if (UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_status & IO_PORTX_INT_SERDES_TXBE) { -+ uart_ubicom32_send(this_uart.tx_buf[this_uart.tx_out & (SERIAL_UBICOM_BUF_SIZE - 1)]); -+ this_uart.tx_out++; -+ UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask |= IO_PORTX_INT_SERDES_TXBE; -+ } -+#endif -+ -+ spin_unlock(&uart->port.lock); -+ -+ return IRQ_HANDLED; -+} -+#if 0 -+static irqreturn_t ubi32_mailbox_tx_int(int irq, void *dev_id) -+{ -+ struct ubi32_mailbox_port *uart = dev_id; -+ -+ spin_lock(&uart->port.lock); -+ if (UART_GET_LSR(uart) & THRE) -+ ubi32_mailbox_tx_chars(uart); -+ spin_unlock(&uart->port.lock); -+ -+ return IRQ_HANDLED; -+} -+#endif -+ -+/* -+ * Return TIOCSER_TEMT when transmitter is not busy. -+ */ -+static unsigned int ubi32_mailbox_tx_empty(struct uart_port *port) -+{ -+// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ unsigned short lsr; -+ -+ lsr = UART_GET_LSR(uart); -+ if (lsr & TEMT) -+ return TIOCSER_TEMT; -+ else -+ return 0; -+} -+ -+static unsigned int ubi32_mailbox_get_mctrl(struct uart_port *port) -+{ -+ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; -+} -+ -+static void ubi32_mailbox_set_mctrl(struct uart_port *port, unsigned int mctrl) -+{ -+} -+ -+/* -+ * Handle any change of modem status signal since we were last called. -+ */ -+static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart) -+{ -+} -+ -+/* -+ * Interrupts are always disabled. -+ */ -+static void ubi32_mailbox_break_ctl(struct uart_port *port, int break_state) -+{ -+// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ u16 lcr = UART_GET_LCR(uart); -+ if (break_state) -+ lcr |= SB; -+ else -+ lcr &= ~SB; -+ UART_PUT_LCR(uart, lcr); -+ SSYNC(); -+} -+ -+static int ubi32_mailbox_startup(struct uart_port *port) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ -+ if (request_irq(uart->port.irq, ubi32_mailbox_isr, IRQF_DISABLED, -+ "UBI32_MAILBOX", uart)) { -+ printk(KERN_NOTICE "Unable to attach Ubicom32 SERDES interrupt\n"); -+ return -EBUSY; -+ } -+ -+ UART_SET_IER(uart, ERBFI); -+ return 0; -+} -+ -+static void ubi32_mailbox_shutdown(struct uart_port *port) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ -+ free_irq(uart->port.irq, uart); -+} -+ -+static void -+ubi32_mailbox_set_termios(struct uart_port *port, struct ktermios *termios, -+ struct ktermios *old) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ unsigned long flags; -+ unsigned int baud, quot; -+ unsigned short val, ier, lsr, lcr = 0; -+ -+ switch (termios->c_cflag & CSIZE) { -+ case CS8: -+ lcr = WLS(8); -+ break; -+ case CS7: -+ lcr = WLS(7); -+ break; -+ case CS6: -+ lcr = WLS(6); -+ break; -+ case CS5: -+ lcr = WLS(5); -+ break; -+ default: -+ printk(KERN_ERR "%s: word lengh not supported\n", -+ __FUNCTION__); -+ } -+ -+ if (termios->c_cflag & CSTOPB) -+ lcr |= STB; -+ if (termios->c_cflag & PARENB) -+ lcr |= PEN; -+ if (!(termios->c_cflag & PARODD)) -+ lcr |= EPS; -+ if (termios->c_cflag & CMSPAR) -+ lcr |= STP; -+ -+ port->read_status_mask = OE; -+ if (termios->c_iflag & INPCK) -+ port->read_status_mask |= (FE | PE); -+ if (termios->c_iflag & (BRKINT | PARMRK)) -+ port->read_status_mask |= BI; -+ -+ /* -+ * Characters to ignore -+ */ -+ port->ignore_status_mask = 0; -+ if (termios->c_iflag & IGNPAR) -+ port->ignore_status_mask |= FE | PE; -+ if (termios->c_iflag & IGNBRK) { -+ port->ignore_status_mask |= BI; -+ /* -+ * If we're ignoring parity and break indicators, -+ * ignore overruns too (for real raw support). -+ */ -+ if (termios->c_iflag & IGNPAR) -+ port->ignore_status_mask |= OE; -+ } -+ -+ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); -+ quot = uart_get_divisor(port, baud); -+ spin_lock_irqsave(&uart->port.lock, flags); -+ -+ do { -+ lsr = UART_GET_LSR(uart); -+ } while (!(lsr & TEMT)); -+ -+ /* Disable UART */ -+ ier = UART_GET_IER(uart); -+ UART_CLEAR_IER(uart, 0xF); -+ -+ UART_PUT_DLL(uart, quot & 0xFF); -+ SSYNC(); -+ UART_PUT_DLH(uart, (quot >> 8) & 0xFF); -+ SSYNC(); -+ -+ UART_PUT_LCR(uart, lcr); -+ -+ /* Enable UART */ -+ UART_SET_IER(uart, ier); -+ -+ val = UART_GET_GCTL(uart); -+ val |= UCEN; -+ UART_PUT_GCTL(uart, val); -+ -+ spin_unlock_irqrestore(&uart->port.lock, flags); -+} -+ -+static const char *ubi32_mailbox_type(struct uart_port *port) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ -+ return uart->port.type == PORT_UBI32_MAILBOX ? "UBI32_MAILBOX" : NULL; -+} -+ -+/* -+ * Release the memory region(s) being used by 'port'. -+ */ -+static void ubi32_mailbox_release_port(struct uart_port *port) -+{ -+} -+ -+/* -+ * Request the memory region(s) being used by 'port'. -+ */ -+static int ubi32_mailbox_request_port(struct uart_port *port) -+{ -+ return 0; -+} -+ -+/* -+ * Configure/autoconfigure the port. -+ */ -+static void ubi32_mailbox_config_port(struct uart_port *port, int flags) -+{ -+ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ -+ if (flags & UART_CONFIG_TYPE && ubi32_mailbox_request_port(&uart->port) == 0) -+ uart->port.type = PORT_UBI32_MAILBOX; -+} -+ -+/* -+ * Verify the new serial_struct (for TIOCSSERIAL). -+ * The only change we allow are to the flags and type, and -+ * even then only between PORT_UBI32_MAILBOX and PORT_UNKNOWN -+ */ -+static int -+ubi32_mailbox_verify_port(struct uart_port *port, struct serial_struct *ser) -+{ -+ return 0; -+} -+ -+static struct uart_ops ubi32_mailbox_pops = { -+ .tx_empty = ubi32_mailbox_tx_empty, -+ .set_mctrl = ubi32_mailbox_set_mctrl, -+ .get_mctrl = ubi32_mailbox_get_mctrl, -+ .stop_tx = ubi32_mailbox_stop_tx, -+ .start_tx = ubi32_mailbox_start_tx, -+ .stop_rx = ubi32_mailbox_stop_rx, -+ .enable_ms = ubi32_mailbox_enable_ms, -+ .break_ctl = ubi32_mailbox_break_ctl, -+ .startup = ubi32_mailbox_startup, -+ .shutdown = ubi32_mailbox_shutdown, -+ .set_termios = ubi32_mailbox_set_termios, -+ .type = ubi32_mailbox_type, -+ .release_port = ubi32_mailbox_release_port, -+ .request_port = ubi32_mailbox_request_port, -+ .config_port = ubi32_mailbox_config_port, -+ .verify_port = ubi32_mailbox_verify_port, -+}; -+ -+static void __init ubi32_mailbox_init_ports(void) -+{ -+ static int first = 1; -+ int i; -+ -+ if (!first) -+ return; -+ first = 0; -+ -+ for (i = 0; i < NR_PORTS; i++) { -+ ubi32_mailbox_ports[i].port.uartclk = get_sclk(); -+ ubi32_mailbox_ports[i].port.ops = &ubi32_mailbox_pops; -+ ubi32_mailbox_ports[i].port.line = i; -+ ubi32_mailbox_ports[i].port.iotype = UPIO_MEM; -+ ubi32_mailbox_ports[i].port.membase = -+ (void __iomem *)ubi32_mailbox_resource[i].uart_base_addr; -+ ubi32_mailbox_ports[i].port.mapbase = -+ ubi32_mailbox_resource[i].uart_base_addr; -+ ubi32_mailbox_ports[i].port.irq = -+ ubi32_mailbox_resource[i].uart_irq; -+ ubi32_mailbox_ports[i].port.flags = UPF_BOOT_AUTOCONF; -+ spin_lock_init(&ubi32_mailbox_ports[i].port.lock); -+ -+ ubi32_mailbox_hw_init(&ubi32_mailbox_ports[i]); -+ } -+ -+} -+ -+#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE -+/* -+ * If the port was already initialised (eg, by a boot loader), -+ * try to determine the current setup. -+ */ -+static void __init -+ubi32_mailbox_console_get_options(struct ubi32_mailbox_port *uart, int *baud, -+ int *parity, int *bits) -+{ -+ unsigned short status; -+ -+ status = UART_GET_IER(uart) & (ERBFI | ETBEI); -+ if (status == (ERBFI | ETBEI)) { -+ /* ok, the port was enabled */ -+ unsigned short lcr; -+ unsigned short dlh, dll; -+ -+ lcr = UART_GET_LCR(uart); -+ -+ *parity = 'n'; -+ if (lcr & PEN) { -+ if (lcr & EPS) -+ *parity = 'e'; -+ else -+ *parity = 'o'; -+ } -+ switch (lcr & 0x03) { -+ case 0: *bits = 5; break; -+ case 1: *bits = 6; break; -+ case 2: *bits = 7; break; -+ case 3: *bits = 8; break; -+ } -+ -+ dll = UART_GET_DLL(uart); -+ dlh = UART_GET_DLH(uart); -+ -+ *baud = get_sclk() / (16*(dll | dlh << 8)); -+ } -+ pr_debug("%s:baud = %d, parity = %c, bits= %d\n", __FUNCTION__, *baud, *parity, *bits); -+} -+#endif -+ -+#if defined(CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) || defined(CONFIG_EARLY_PRINTK) -+static struct uart_driver ubi32_mailbox_reg; -+ -+static int __init -+ubi32_mailbox_console_setup(struct console *co, char *options) -+{ -+ struct ubi32_mailbox_port *uart; -+# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE -+ int baud = SERIAL_UBICOM_BAUDRATE; -+ int bits = 8; -+ int parity = 'n'; -+ int flow = 'n'; -+# endif -+ -+ /* -+ * Check whether an invalid uart number has been specified, and -+ * if so, search for the first available port that does have -+ * console support. -+ */ -+ if (co->index == -1 || co->index >= NR_PORTS) -+ co->index = 0; -+ uart = &ubi32_mailbox_ports[co->index]; -+ -+# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE -+ if (options) -+ uart_parse_options(options, &baud, &parity, &bits, &flow); -+ else -+ ubi32_mailbox_console_get_options(uart, &baud, &parity, &bits); -+ -+ //JB return uart_set_options(&uart->port, co, baud, parity, bits, flow); -+ return 0; -+# else -+ return 0; -+# endif -+} -+#endif /* defined (CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) || -+ defined (CONFIG_EARLY_PRINTK) */ -+ -+#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE -+static void ubi32_mailbox_console_putchar(struct uart_port *port, int ch) -+{ -+// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port; -+ while (!(UART_GET_LSR(uart) & THRE)) -+ barrier(); -+ UART_PUT_CHAR(uart, ch); -+ SSYNC(); -+} -+ -+/* -+ * Interrupts are disabled on entering -+ */ -+static void -+ubi32_mailbox_console_write(struct console *co, const char *s, unsigned int count) -+{ -+ struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[co->index]; -+ unsigned long flags = 0; -+ -+ spin_lock_irqsave(&uart->port.lock, flags); -+ uart_console_write(&uart->port, s, count, ubi32_mailbox_console_putchar); -+ spin_unlock_irqrestore(&uart->port.lock, flags); -+ -+} -+ -+static struct console ubi32_mailbox_console = { -+ .name = UBI32_MAILBOX_NAME, -+ .write = ubi32_mailbox_console_write, -+ .device = uart_console_device, -+ .setup = ubi32_mailbox_console_setup, -+ .flags = CON_PRINTBUFFER, -+ .index = -1, -+ .data = &ubi32_mailbox_reg, -+}; -+ -+static int __init ubi32_mailbox_console_init(void) -+{ -+ ubi32_mailbox_init_ports(); -+ register_console(&ubi32_mailbox_console); -+ return 0; -+} -+console_initcall(ubi32_mailbox_console_init); -+ -+#define UBI32_MAILBOX_CONSOLE &ubi32_mailbox_console -+#else -+#define UBI32_MAILBOX_CONSOLE NULL -+#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */ -+ -+ -+#ifdef CONFIG_EARLY_PRINTK -+static __init void ubi32_mailbox_early_putc(struct uart_port *port, int ch) -+{ -+ UART_PUT_CHAR(uart, ch); -+} -+ -+static __init void ubi32_mailbox_early_write(struct console *con, const char *s, -+ unsigned int n) -+{ -+ struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[con->index]; -+ unsigned int i; -+ -+ for (i = 0; i < n; i++, s++) { -+ if (*s == '\n') -+ ubi32_mailbox_early_putc(&uart->port, '\r'); -+ ubi32_mailbox_early_putc(&uart->port, *s); -+ } -+} -+ -+static struct __init console ubi32_mailbox_early_console = { -+ .name = "early_UM", -+ .write = ubi32_mailbox_early_write, -+ .device = uart_console_device, -+ .flags = CON_PRINTBUFFER, -+ .setup = ubi32_mailbox_console_setup, -+ .index = -1, -+ .data = &ubi32_mailbox_reg, -+}; -+ -+/* -+ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for. -+ */ -+struct console __init *ubi32_mailbox_early_init(unsigned int port, -+ unsigned int cflag) -+{ -+ struct ubi32_mailbox_port *uart; -+ struct ktermios t; -+ -+ if (port == -1 || port >= NR_PORTS) -+ port = 0; -+ ubi32_mailbox_init_ports(); -+ ubi32_mailbox_early_console.index = port; -+ uart = &ubi32_mailbox_ports[port]; -+ t.c_cflag = cflag; -+ t.c_iflag = 0; -+ t.c_oflag = 0; -+ t.c_lflag = ICANON; -+ t.c_line = port; -+ ubi32_mailbox_set_termios(&uart->port, &t, &t); -+ return &ubi32_mailbox_early_console; -+} -+ -+#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */ -+ -+static struct uart_driver ubi32_mailbox_reg = { -+ .owner = THIS_MODULE, -+ .driver_name = "ubi32_mailbox", -+ .dev_name = UBI32_MAILBOX_NAME, -+ .major = UBI32_MAILBOX_MAJOR, -+ .minor = UBI32_MAILBOX_MINOR, -+ .nr = NR_PORTS, -+ .cons = UBI32_MAILBOX_CONSOLE, -+}; -+ -+static int ubi32_mailbox_suspend(struct platform_device *dev, pm_message_t state) -+{ -+ struct ubi32_mailbox_port *uart = platform_get_drvdata(dev); -+ -+ if (uart) -+ uart_suspend_port(&ubi32_mailbox_reg, &uart->port); -+ -+ return 0; -+} -+ -+static int ubi32_mailbox_resume(struct platform_device *dev) -+{ -+ struct ubi32_mailbox_port *uart = platform_get_drvdata(dev); -+ -+ if (uart) -+ uart_resume_port(&ubi32_mailbox_reg, &uart->port); -+ -+ return 0; -+} -+ -+static int ubi32_mailbox_probe(struct platform_device *dev) -+{ -+ struct resource *res = dev->resource; -+ int i; -+ -+ for (i = 0; i < dev->num_resources; i++, res++) -+ if (res->flags & IORESOURCE_MEM) -+ break; -+ -+ if (i < dev->num_resources) { -+ for (i = 0; i < NR_PORTS; i++, res++) { -+ if (ubi32_mailbox_ports[i].port.mapbase != res->start) -+ continue; -+ ubi32_mailbox_ports[i].port.dev = &dev->dev; -+ uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[i].port); -+ platform_set_drvdata(dev, &ubi32_mailbox_ports[i]); -+ } -+ } -+ -+ return 0; -+} -+ -+static int ubi32_mailbox_remove(struct platform_device *pdev) -+{ -+ struct ubi32_mailbox_port *uart = platform_get_drvdata(pdev); -+ -+ platform_set_drvdata(pdev, NULL); -+ -+ if (uart) -+ uart_remove_one_port(&ubi32_mailbox_reg, &uart->port); -+ -+ return 0; -+} -+ -+static struct platform_driver ubi32_mailbox_driver = { -+ .probe = ubi32_mailbox_probe, -+ .remove = ubi32_mailbox_remove, -+ .suspend = ubi32_mailbox_suspend, -+ .resume = ubi32_mailbox_resume, -+ .driver = { -+ .name = "ubi32-mbox", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init ubi32_mailbox_init(void) -+{ -+ int ret; -+ -+ pr_info("Serial: Ubicom32 mailbox serial driver.\n"); -+ -+ mailbox_console_flg = TRUE; -+ num_timeouts = 0; -+ ubi32_mailbox_init_ports(); -+ -+ ret = uart_register_driver(&ubi32_mailbox_reg); -+ if (ret == 0) { -+ ret = platform_driver_register(&ubi32_mailbox_driver); -+ if (ret) { -+ pr_debug("uart register failed\n"); -+ uart_unregister_driver(&ubi32_mailbox_reg); -+ } -+ } -+ -+ /* -+ * XXX HACK: currently probe does not get called, but the port needs to be added to work. -+ */ -+ uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[0].port); -+ return ret; -+} -+ -+static void __exit ubi32_mailbox_exit(void) -+{ -+ platform_driver_unregister(&ubi32_mailbox_driver); -+ uart_unregister_driver(&ubi32_mailbox_reg); -+} -+ -+module_init(ubi32_mailbox_init); -+module_exit(ubi32_mailbox_exit); -+ -+MODULE_ALIAS_CHARDEV_MAJOR(UBI32_MAILBOX_MAJOR); -+MODULE_ALIAS("platform:ubi32_mailbox"); ---- /dev/null -+++ b/drivers/serial/ubi32_serdes.c -@@ -0,0 +1,817 @@ -+/* -+ * drivers/serial/ubi32_serdes.c -+ * Ubicom32 On-Chip Serial Driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/ioport.h> -+#include <linux/init.h> -+#include <linux/console.h> -+#include <linux/sysrq.h> -+#include <linux/platform_device.h> -+#include <linux/tty.h> -+#include <linux/tty_flip.h> -+#include <linux/serial_core.h> -+ -+#include <asm/ip5000.h> -+#include <asm/ubicom32suart.h> -+ -+ -+#define SERIAL_UBICOM_PIN_RXD (1 << 0) -+#define SERIAL_UBICOM_PIN_TXD (1 << 6) -+#define SERIAL_UBICOM_CTL0 0x8b300000 -+#define SERIAL_UBICOM_CTL1 0x00000009 -+ -+#define SERIAL_UBICOM_DATA_BIT 8 /* Fixed parameter - do not change */ -+#define SERIAL_UBICOM_PAR_BIT 0 /* Fixed parameter - do not change */ -+#define SERIAL_UBICOM_STOP_BIT 1 /* Fixed parameter - do not change */ -+ -+/* UART name and device definitions */ -+#define UBI32_SERDES_NAME "ttyUS" // XXX -+#define UBI32_SERDES_MAJOR 206 // XXX -+#define UBI32_SERDES_MINOR 64 // XXX -+ -+#define PORT_UBI32_SERDES 1234 -+#define NR_PORTS 1 -+ -+struct uart_port ubi32_serdes_ports[NR_PORTS]; -+ -+struct ubi32_serdes_resource { -+ void *uart_base_addr; -+ int uart_irq; -+ int uart_clock; -+} ubi32_serdes_resource[NR_PORTS] = { -+ /* -+ * Get params from kernel command line (required for early printk) -+ * or from platform resources. -+ */ -+ {0, 0, 0} -+}; -+ -+/* -+ * Can get overridden by 'serdes=' kernel command line. -+ */ -+static int ubi32_serdes_default_baud_rate = 115200; -+ -+ -+#define IO_PORT(port) ((struct ubicom32_io_port *)port->membase) -+#define IO_PORT_INT_STATUS(port) (IO_PORT(port)->int_status) -+#define IO_PORT_INT_MASK(port) (IO_PORT(port)->int_mask) -+#define IO_PORT_INT_CLR(port) (IO_PORT(port)->int_clr) -+ -+ -+/* -+ * ubi32_serdes_get_char() -+ */ -+static u8_t ubi32_serdes_get_char(struct ubicom32_io_port *io_port) -+{ -+ /* -+ * Read from hardware (forced 32-bit atomic read). -+ */ -+ u32_t data = 0; -+ -+ if ( io_port ) { -+ io_port->int_clr = IO_PORTX_INT_SERDES_RXBF; -+ asm volatile ( -+ "move.4 %0, %1 \n\t" -+ : "=r" (data) -+ : "m" (*(u32_t *)&(io_port->rx_fifo)) -+ ); -+ } -+ -+ return (u8_t)(data & 0x000000ff); -+} -+ -+/* -+ * ubi32_serdes_put_char() -+ */ -+static void ubi32_serdes_put_char(struct ubicom32_io_port *io_port, u8_t c) -+{ -+ u32_t data = 0x0000fe00 | (c << 1); -+ -+ if ( io_port ) { -+ /* -+ * Fixed data format: -+ * [LSB]1 start bit - 8 data bits - no parity - 1 stop bit[MSB] -+ */ -+ io_port->int_clr = IO_PORTX_INT_SERDES_TXBE; -+ io_port->ctl2 = data; -+ io_port->int_set = IO_PORTX_INT_SERDES_TXBUF_VALID; -+ } -+} -+ -+static void ubi32_serdes_hw_init(struct uart_port *port, int baud) -+{ -+ struct ubicom32_io_port *io_port = IO_PORT(port); -+ -+ if ( io_port ) { -+ /* -+ * Put port functions 1-4 into reset state. -+ * Function 0 (GPIO) does not need or have a reset bit. -+ * -+ * Select SERDES function for restart below. -+ */ -+ io_port->function = -+ IO_FUNC_FUNCTION_RESET(1) | IO_FUNC_FUNCTION_RESET(2) | -+ IO_FUNC_FUNCTION_RESET(3) | IO_FUNC_FUNCTION_RESET(4) | -+ IO_PORTX_FUNC_SERDES; -+ -+ /* -+ * Configure SERDES baudrate -+ */ -+ if ( baud == 0 ) { -+ baud = ubi32_serdes_default_baud_rate; -+ } -+ -+ io_port->ctl0 = -+ SERIAL_UBICOM_CTL0 | -+ ((port->uartclk / (16 * baud)) - 1); -+ -+ io_port->ctl1 = -+ SERIAL_UBICOM_CTL1; -+ -+ /* -+ * don't interrupt until startup and start_tx -+ */ -+ io_port->int_mask = 0; -+ -+ /* -+ * Set TXD pin output, RXD input and prevent GPIO -+ * override on the TXD & RXD pins -+ */ -+ io_port->gpio_ctl &= ~SERIAL_UBICOM_PIN_RXD; -+ io_port->gpio_ctl |= SERIAL_UBICOM_PIN_TXD; -+ io_port->gpio_mask &= ~(SERIAL_UBICOM_PIN_RXD | SERIAL_UBICOM_PIN_TXD); -+ -+ /* -+ * Restart (un-reset) the port's SERDES function. -+ */ -+ io_port->function &= ~(IO_FUNC_FUNCTION_RESET(IO_PORTX_FUNC_SERDES)); -+ } -+} -+ -+#define ULITE_STATUS_RXVALID IO_PORTX_INT_SERDES_RXBF -+#define ULITE_STATUS_OVERRUN 0 -+#define ULITE_STATUS_FRAME 0 -+#define ULITE_STATUS_PARITY 0 -+#define ULITE_STATUS_TXEMPTY IO_PORTX_INT_SERDES_TXBE -+#define ULITE_STATUS_TXFULL 0 -+ -+static int ubi32_serdes_receive(struct uart_port *port, int stat) -+{ -+ struct tty_struct *tty = port->info->port.tty; -+ unsigned char ch = 0; -+ char flag = TTY_NORMAL; -+ -+ if ((stat & (ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN -+ | ULITE_STATUS_FRAME)) == 0) -+ return 0; -+ -+ /* stats */ -+ if (stat & ULITE_STATUS_RXVALID) { -+ port->icount.rx++; -+ ch = ubi32_serdes_get_char((struct ubicom32_io_port *)port->membase); -+ -+ if (stat & ULITE_STATUS_PARITY) -+ port->icount.parity++; -+ } -+ -+ if (stat & ULITE_STATUS_OVERRUN) -+ port->icount.overrun++; -+ -+ if (stat & ULITE_STATUS_FRAME) -+ port->icount.frame++; -+ -+ -+ /* drop byte with parity error if IGNPAR specificed */ -+ if (stat & port->ignore_status_mask & ULITE_STATUS_PARITY) -+ stat &= ~ULITE_STATUS_RXVALID; -+ -+ stat &= port->read_status_mask; -+ -+ if (stat & ULITE_STATUS_PARITY) -+ flag = TTY_PARITY; -+ -+ stat &= ~port->ignore_status_mask; -+ -+ if (stat & ULITE_STATUS_RXVALID) -+ tty_insert_flip_char(tty, ch, flag); -+ -+ if (stat & ULITE_STATUS_FRAME) -+ tty_insert_flip_char(tty, 0, TTY_FRAME); -+ -+ if (stat & ULITE_STATUS_OVERRUN) -+ tty_insert_flip_char(tty, 0, TTY_OVERRUN); -+ -+ return 1; -+} -+ -+/* -+ * interrupts are disabled on entry -+ */ -+static void ubi32_serdes_stop_tx(struct uart_port *port) -+{ -+ IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) & ~IO_PORTX_INT_SERDES_TXBE; -+} -+ -+static int ubi32_serdes_transmit(struct uart_port *port, int stat) -+{ -+ struct circ_buf *xmit = &port->info->xmit; -+ -+ if (!(stat & IO_PORTX_INT_SERDES_TXBE)) -+ return 0; -+ -+ if (port->x_char) { -+ ubi32_serdes_put_char(IO_PORT(port), port->x_char); -+ port->x_char = 0; -+ port->icount.tx++; -+ return 1; -+ } -+ -+ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { -+ ubi32_serdes_stop_tx(port); -+ return 0; -+ } -+ -+ ubi32_serdes_put_char(IO_PORT(port), xmit->buf[xmit->tail]); -+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1); -+ port->icount.tx++; -+ -+ /* wake up */ -+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) -+ uart_write_wakeup(port); -+ -+ if (uart_circ_empty(xmit)) -+ ubi32_serdes_stop_tx(port); -+ -+ return 1; -+} -+ -+/* -+ * port is locked and interrupts are disabled -+ */ -+static void ubi32_serdes_start_tx(struct uart_port *port) -+{ -+ IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) | IO_PORTX_INT_SERDES_TXBE; -+ ubi32_serdes_transmit(port, IO_PORT_INT_STATUS(port)); -+} -+ -+/* -+ * Interrupts are enabled -+ */ -+static void ubi32_serdes_stop_rx(struct uart_port *port) -+{ -+ /* don't forward any more data (like !CREAD) */ -+ port->ignore_status_mask = IO_PORTX_INT_SERDES_RXBF; -+} -+ -+/* -+ * Set the modem control timer to fire immediately. -+ */ -+static void ubi32_serdes_enable_ms(struct uart_port *port) -+{ -+ /* N/A */ -+} -+ -+static irqreturn_t ubi32_serdes_isr(int irq, void *dev_id) -+{ -+ struct uart_port *port = dev_id; -+ int busy; -+ -+ spin_lock(&port->lock); -+ -+ do { -+ int stat = IO_PORT_INT_STATUS(port); -+ busy = ubi32_serdes_receive(port, stat); -+ busy |= ubi32_serdes_transmit(port, stat); -+ } while (busy); -+ -+ tty_flip_buffer_push(port->info->port.tty); -+ -+ spin_unlock(&port->lock); -+ -+ return IRQ_HANDLED; -+} -+ -+/* -+ * Return TIOCSER_TEMT when transmitter is not busy. -+ */ -+static unsigned int ubi32_serdes_tx_empty(struct uart_port *port) -+{ -+ unsigned long flags; -+ unsigned int ret; -+ -+ spin_lock_irqsave(&port->lock, flags); -+ ret = IO_PORT_INT_STATUS(port); -+ spin_unlock_irqrestore(&port->lock, flags); -+ -+ return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0; -+} -+ -+static unsigned int ubi32_serdes_get_mctrl(struct uart_port *port) -+{ -+ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; -+} -+ -+static void ubi32_serdes_set_mctrl(struct uart_port *port, unsigned int mctrl) -+{ -+ /* N/A */ -+} -+ -+/* -+ * Interrupts are always disabled. -+ */ -+static void ubi32_serdes_break_ctl(struct uart_port *port, int break_state) -+{ -+ /* N/A */ -+} -+ -+static int ubi32_serdes_startup(struct uart_port *port) -+{ -+ if (request_irq(port->irq, ubi32_serdes_isr, IRQF_DISABLED, -+ "UBI32_SERDES", port)) { -+ printk(KERN_NOTICE "Unable to attach port interrupt\n"); -+ return -EBUSY; -+ } -+ -+ IO_PORT_INT_CLR(port) = IO_PORTX_INT_SERDES_RXBF; -+ IO_PORT_INT_MASK(port) = IO_PORTX_INT_SERDES_RXBF; -+ return 0; -+} -+ -+static void ubi32_serdes_shutdown(struct uart_port *port) -+{ -+ struct ubi32_serdes_port *uart = (struct ubi32_serdes_port *)port; -+ -+ IO_PORT_INT_MASK(port) = 0; -+ free_irq(port->irq, uart); -+} -+ -+static void -+ubi32_serdes_set_termios(struct uart_port *port, struct ktermios *termios, -+ struct ktermios *old) -+{ -+ unsigned long flags; -+ unsigned int baud; -+ -+ spin_lock_irqsave(&port->lock, flags); -+ -+ port->read_status_mask = ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN -+ | ULITE_STATUS_TXFULL; -+ -+ if (termios->c_iflag & INPCK) -+ port->read_status_mask |= -+ ULITE_STATUS_PARITY | ULITE_STATUS_FRAME; -+ -+ port->ignore_status_mask = 0; -+ if (termios->c_iflag & IGNPAR) -+ port->ignore_status_mask |= ULITE_STATUS_PARITY -+ | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN; -+ -+ /* ignore all characters if CREAD is not set */ -+ if ((termios->c_cflag & CREAD) == 0) -+ port->ignore_status_mask |= -+ ULITE_STATUS_RXVALID | ULITE_STATUS_PARITY -+ | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN; -+ -+ /* update timeout */ -+ baud = uart_get_baud_rate(port, termios, old, 0, 460800); -+ uart_update_timeout(port, termios->c_cflag, baud); -+ -+ IO_PORT(port)->ctl0 = SERIAL_UBICOM_CTL0 | -+ ((port->uartclk / (16 * baud)) - 1); -+ -+ spin_unlock_irqrestore(&port->lock, flags); -+} -+ -+static const char *ubi32_serdes_type(struct uart_port *port) -+{ -+ return port->type == PORT_UBI32_SERDES ? "UBI32_SERDES" : NULL; -+} -+ -+/* -+ * Release the memory region(s) being used by 'port'. -+ */ -+static void ubi32_serdes_release_port(struct uart_port *port) -+{ -+} -+ -+/* -+ * Request the memory region(s) being used by 'port'. -+ */ -+static int ubi32_serdes_request_port(struct uart_port *port) -+{ -+ return 0; -+} -+ -+/* -+ * Configure/autoconfigure the port. -+ */ -+static void ubi32_serdes_config_port(struct uart_port *port, int flags) -+{ -+ if (flags & UART_CONFIG_TYPE && -+ ubi32_serdes_request_port(port) == 0) -+ port->type = PORT_UBI32_SERDES; -+} -+ -+/* -+ * Verify the new serial_struct (for TIOCSSERIAL). -+ * The only change we allow are to the flags and type, and -+ * even then only between PORT_UBI32_SERDES and PORT_UNKNOWN -+ */ -+static int -+ubi32_serdes_verify_port(struct uart_port *port, struct serial_struct *ser) -+{ -+ return 0; -+} -+ -+static struct uart_ops ubi32_serdes_pops = { -+ .tx_empty = ubi32_serdes_tx_empty, -+ .set_mctrl = ubi32_serdes_set_mctrl, -+ .get_mctrl = ubi32_serdes_get_mctrl, -+ .stop_tx = ubi32_serdes_stop_tx, -+ .start_tx = ubi32_serdes_start_tx, -+ .stop_rx = ubi32_serdes_stop_rx, -+ .enable_ms = ubi32_serdes_enable_ms, -+ .break_ctl = ubi32_serdes_break_ctl, -+ .startup = ubi32_serdes_startup, -+ .shutdown = ubi32_serdes_shutdown, -+ .set_termios = ubi32_serdes_set_termios, -+ .type = ubi32_serdes_type, -+ .release_port = ubi32_serdes_release_port, -+ .request_port = ubi32_serdes_request_port, -+ .config_port = ubi32_serdes_config_port, -+ .verify_port = ubi32_serdes_verify_port, -+}; -+ -+static void __init ubi32_serdes_init_ports(void) -+{ -+ int i; -+ -+ for (i = 0; i < NR_PORTS; i++) { -+ ubi32_serdes_ports[i].uartclk = ubi32_serdes_resource[i].uart_clock; -+ ubi32_serdes_ports[i].ops = &ubi32_serdes_pops; -+ ubi32_serdes_ports[i].line = i; -+ ubi32_serdes_ports[i].iotype = UPIO_MEM; -+ ubi32_serdes_ports[i].membase = -+ (void __iomem *)ubi32_serdes_resource[i].uart_base_addr; -+ ubi32_serdes_ports[i].mapbase = -+ (resource_size_t)ubi32_serdes_resource[i].uart_base_addr; -+ ubi32_serdes_ports[i].irq = -+ ubi32_serdes_resource[i].uart_irq; -+ ubi32_serdes_ports[i].flags = UPF_BOOT_AUTOCONF; -+ -+ ubi32_serdes_hw_init(&ubi32_serdes_ports[i], 0); -+ } -+ -+} -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE -+/* -+ * If the port was already initialised (eg, by a boot loader), -+ * try to determine the current setup. -+ */ -+static void __init -+ubi32_serdes_console_get_options(struct uart_port *port, int *baud) -+{ -+ u32 round_to = 1200; -+ u32 real_baud; -+ -+ /* -+ * We might get called before platform init and with no -+ * kernel command line options, so port might be NULL. -+ */ -+ *baud = ubi32_serdes_default_baud_rate;; -+ if ( IO_PORT(port) == 0 ) -+ return; -+ -+ real_baud = port->uartclk -+ / (16 * ((IO_PORT(port)->ctl0 & ~SERIAL_UBICOM_CTL0) + 1)); -+ -+ *baud = ((real_baud + round_to - 1) / round_to) * round_to; -+ -+ pr_debug("%s:baud = %d, real_baud = %d\n", __FUNCTION__, *baud, real_baud); -+} -+#endif -+ -+#if defined(CONFIG_SERIAL_UBI32_SERDES_CONSOLE) || defined(CONFIG_EARLY_PRINTK) -+static struct uart_driver ubi32_serdes_reg; -+ -+static int __init -+ubi32_serdes_console_setup(struct console *co, char *options) -+{ -+ struct uart_port *port; -+#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE -+ int baud = ubi32_serdes_default_baud_rate; -+ int bits = 8; -+ int parity = 'n'; -+ int flow = 'n'; -+#endif -+ -+ /* -+ * Check whether an invalid uart number has been specified, and -+ * if so, search for the first available port that does have -+ * console support. -+ */ -+ if (co->index == -1 || co->index >= NR_PORTS) -+ co->index = 0; -+ port = &ubi32_serdes_ports[co->index]; -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE -+ if (options) { -+ uart_parse_options(options, &baud, &parity, &bits, &flow); -+ ubi32_serdes_hw_init(port, baud); -+ } -+ else -+ ubi32_serdes_console_get_options(port, &baud); -+ -+ return uart_set_options(port, co, baud, parity, bits, flow); -+#else -+ return 0; -+#endif -+} -+#endif /* defined (CONFIG_SERIAL_UBI32_SERDES_CONSOLE) || -+ defined (CONFIG_EARLY_PRINTK) */ -+ -+#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE -+static void -+ubi32_serdes_console_putchar(struct uart_port *port, int ch) -+{ -+ if ( IO_PORT(port) ) { -+ while (!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE)) -+ barrier(); -+ ubi32_serdes_put_char(IO_PORT(port), ch); -+ } -+} -+ -+/* -+ * Interrupts are disabled on entering -+ */ -+static void -+ubi32_serdes_console_write(struct console *co, const char *s, unsigned int count) -+{ -+ struct uart_port *port = &ubi32_serdes_ports[co->index]; -+ unsigned long flags = 0; -+ -+ spin_lock_irqsave(&port->lock, flags); -+ uart_console_write(port, s, count, ubi32_serdes_console_putchar); -+ spin_unlock_irqrestore(&port->lock, flags); -+ -+} -+ -+static struct console ubi32_serdes_console = { -+ .name = UBI32_SERDES_NAME, -+ .write = ubi32_serdes_console_write, -+ .device = uart_console_device, -+ .setup = ubi32_serdes_console_setup, -+ .flags = CON_PRINTBUFFER, -+ .index = -1, -+ .data = &ubi32_serdes_reg, -+}; -+ -+static int __init ubi32_serdes_console_init(void) -+{ -+ ubi32_serdes_init_ports(); -+ register_console(&ubi32_serdes_console); -+ return 0; -+} -+console_initcall(ubi32_serdes_console_init); -+ -+#define UBI32_SERDES_CONSOLE &ubi32_serdes_console -+#else -+#define UBI32_SERDES_CONSOLE NULL -+#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */ -+ -+ -+#ifdef CONFIG_EARLY_PRINTK -+static __init void ubi32_serdes_early_putc(struct uart_port *port, int ch) -+{ -+ unsigned timeout = 0xffff; -+ -+ while ((!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE)) && --timeout) -+ cpu_relax(); -+ ubi32_serdes_put_char(IO_PORT(port), ch); -+} -+ -+static __init void ubi32_serdes_early_write(struct console *con, const char *s, -+ unsigned int n) -+{ -+ struct uart_port *port = &ubi32_serdes_ports[con->index]; -+ unsigned int i; -+ -+ for (i = 0; i < n; i++, s++) { -+ if (*s == '\n') -+ ubi32_serdes_early_putc(port, '\r'); -+ ubi32_serdes_early_putc(port, *s); -+ } -+} -+ -+static struct __init console ubi32_serdes_early_console = { -+ .name = "early_US", -+ .write = ubi32_serdes_early_write, -+ .device = uart_console_device, -+ .flags = CON_PRINTBUFFER, -+ .setup = ubi32_serdes_console_setup, -+ .index = -1, -+ .data = &ubi32_serdes_reg, -+}; -+ -+/* -+ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for. -+ */ -+struct console __init *ubi32_serdes_early_init(unsigned int port_index, -+ unsigned int cflag) -+{ -+ struct uart_port *uart; -+ struct ktermios t; -+ -+ if (port_index == -1 || port_index >= NR_PORTS) -+ port_index = 0; -+ ubi32_serdes_init_ports(); -+ ubi32_serdes_early_console.index = port_index; -+ uart = &ubi32_serdes_ports[port_index]; -+ t.c_cflag = cflag; -+ t.c_iflag = 0; -+ t.c_oflag = 0; -+ t.c_lflag = ICANON; -+ t.c_line = port_index; -+ ubi32_serdes_set_termios(uart, &t, &t); -+ return &ubi32_serdes_early_console; -+} -+ -+#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */ -+ -+static struct uart_driver ubi32_serdes_reg = { -+ .owner = THIS_MODULE, -+ .driver_name = "ubi32_serdes", -+ .dev_name = UBI32_SERDES_NAME, -+ .major = UBI32_SERDES_MAJOR, -+ .minor = UBI32_SERDES_MINOR, -+ .nr = NR_PORTS, -+ .cons = UBI32_SERDES_CONSOLE, -+}; -+ -+static int ubi32_serdes_suspend(struct platform_device *dev, pm_message_t state) -+{ -+ struct uart_port *port = platform_get_drvdata(dev); -+ -+ if (port) -+ uart_suspend_port(&ubi32_serdes_reg, port); -+ -+ return 0; -+} -+ -+static int ubi32_serdes_resume(struct platform_device *dev) -+{ -+ struct uart_port *port = platform_get_drvdata(dev); -+ -+ if (port) -+ uart_resume_port(&ubi32_serdes_reg, port); -+ -+ return 0; -+} -+ -+static int ubi32_serdes_probe(struct platform_device *dev) -+{ -+ struct resource *res = dev->resource; -+ int i; -+ -+ for (i = 0; i < dev->num_resources; i++, res++) { -+ if (res->flags & IORESOURCE_MEM) { -+ ubi32_serdes_resource[0].uart_base_addr = (void *) res->start; -+ } -+ else if (res->flags & IORESOURCE_IRQ) { -+ ubi32_serdes_resource[0].uart_irq = res->start; -+ } -+ else if (res->flags & UBICOM32_SUART_IORESOURCE_CLOCK) { -+ ubi32_serdes_resource[0].uart_clock = res->start; -+ } -+ } -+ -+ ubi32_serdes_init_ports(); -+ -+ return 0; -+} -+ -+static int ubi32_serdes_remove(struct platform_device *pdev) -+{ -+ struct uart_port *port = platform_get_drvdata(pdev); -+ -+ platform_set_drvdata(pdev, NULL); -+ -+ if (port) -+ uart_remove_one_port(&ubi32_serdes_reg, port); -+ -+ return 0; -+} -+ -+static struct platform_driver ubi32_serdes_driver = { -+ .remove = ubi32_serdes_remove, -+ .suspend = ubi32_serdes_suspend, -+ .resume = ubi32_serdes_resume, -+ .driver = { -+ .name = "ubicom32suart", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+ -+#ifndef MODULE -+/* -+ * Called at boot time. -+ * -+ * You can specify IO base, IRQ, and clock for the serdes serial port -+ * using kernel command line "serdes=0xiobase,irq,clock". Values -+ * specified will be overwritten by platform device data, if present. -+ */ -+static int __init ubi32_serdes_setup(char *str) -+{ -+#define N_PARMS (4+1) -+ int ints[N_PARMS]; -+ int i; -+ -+ str = get_options(str, ARRAY_SIZE(ints), ints); -+ -+ for (i = 0; i < N_PARMS; i++) { -+ if (i < ints[0]) { -+ if (i == 0) { -+ ubi32_serdes_resource[0].uart_base_addr = (void *) ints[i+1]; -+ } -+ else if (i == 1) { -+ ubi32_serdes_resource[0].uart_irq = ints[i+1]; -+ } -+ else if (i == 2) { -+ ubi32_serdes_resource[0].uart_clock = ints[i+1]; -+ } -+ else if (i == 3) { -+ ubi32_serdes_default_baud_rate = ints[i+1]; -+ } -+ } -+ } -+ return 1; -+} -+ -+__setup("serdes=", ubi32_serdes_setup); -+#endif -+ -+static int __init ubi32_serdes_init(void) -+{ -+ int ret; -+ -+ pr_info("Serial: Ubicom32 serdes uart serial driver\n"); -+ -+ ret = platform_driver_probe(&ubi32_serdes_driver, ubi32_serdes_probe); -+ if (ret != 0) { -+ printk(KERN_INFO "serdes platform_driver_probe() failed: %d\n", ret); -+ return ret; -+ } -+ -+ ubi32_serdes_init_ports(); -+ -+ ret = uart_register_driver(&ubi32_serdes_reg); -+ if ( ret == 0 ) { -+ ret = uart_add_one_port(&ubi32_serdes_reg, &ubi32_serdes_ports[0]); -+ if ( ret != 0 ) { -+ uart_unregister_driver(&ubi32_serdes_reg); -+ } -+ } -+ -+ return ret; -+} -+ -+static void __exit ubi32_serdes_exit(void) -+{ -+ platform_driver_unregister(&ubi32_serdes_driver); -+ uart_unregister_driver(&ubi32_serdes_reg); -+} -+ -+module_init(ubi32_serdes_init); -+module_exit(ubi32_serdes_exit); -+ -+MODULE_AUTHOR("Rainer Keller <rkeller@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom generic serial port driver"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS_CHARDEV_MAJOR(UBI32_SERDES_MAJOR); -+MODULE_ALIAS("platform:ubi32_serdes"); ---- /dev/null -+++ b/drivers/serial/ubi32_uarttio.c -@@ -0,0 +1,1171 @@ -+/* -+ * drivers/serial/ubi32_uarttio.c -+ * Ubicom32 Serial Virtual Peripherial Driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/module.h> -+#include <linux/ioport.h> -+#include <linux/init.h> -+#include <linux/console.h> -+#include <linux/sysrq.h> -+#include <linux/platform_device.h> -+#include <linux/tty.h> -+#include <linux/tty_flip.h> -+#include <linux/serial_core.h> -+ -+#include <asm/ip5000.h> -+#include <asm/gpio.h> -+#include <asm/thread.h> -+#include <asm/uart_tio.h> -+ -+#define DRIVER_NAME "ubi32_uarttio" -+ -+/* -+ * For storing the module parameters. -+ */ -+#define UBI32_UARTTIO_MAX_PARAM_LEN 80 -+static char utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN]; -+ -+/* -+ * UART name and device definitions -+ */ -+#define UBI32_UARTTIO_NAME "ttyUV" // XXX -+#define UBI32_UARTTIO_MAJOR 206 // XXX -+#define UBI32_UARTTIO_MINOR 64 // XXX -+ -+/* -+ * The following structures are allocated statically because the -+ * memory allocation subsystem is not initialized this early on -+ */ -+ -+/* -+ * Per port structure -+ */ -+struct ubi32_uarttio_port { -+ struct uarttio_uart *uart; -+ unsigned int tx_pin; -+ unsigned int rx_pin; -+ -+ struct uart_port port; -+ -+ u8_t added; -+ -+ /* -+ * If this value is set, the port has had its direction set already -+ */ -+ u8_t port_init; -+}; -+static struct ubi32_uarttio_port uarttio_ports[CONFIG_SERIAL_UBI32_UARTTIO_NR_UARTS]; -+ -+/* -+ * Number of ports currently initialized -+ */ -+static int uarttio_nports; -+ -+/* -+ * Per device structure -+ */ -+struct ubi32_uarttio_instance { -+ struct uarttio_regs *regs; -+ struct ubi32_uarttio_port *ports; -+ -+ u8_t irq_requested; -+ u8_t driver_registered; -+ u8_t irq; -+}; -+static struct ubi32_uarttio_instance uarttio_inst; -+ -+#ifdef CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE -+static struct console ubi32_uarttio_console; -+#define UBI32_UARTTIO_CONSOLE &ubi32_uarttio_console -+#else -+#define UBI32_UARTTIO_CONSOLE NULL -+#endif -+ -+static struct uart_driver ubi32_uarttio_uart_driver = { -+ .owner = THIS_MODULE, -+ .driver_name = DRIVER_NAME, -+ .dev_name = UBI32_UARTTIO_NAME, -+ .major = UBI32_UARTTIO_MAJOR, -+ .minor = UBI32_UARTTIO_MINOR, -+ .cons = UBI32_UARTTIO_CONSOLE, -+}; -+ -+#ifdef UBI32_UARTTIO_UNUSED -+/* -+ * ubi32_uarttio_get_send_space -+ */ -+static int ubi32_uarttio_get_send_space(struct uarttio_uart *uart) -+{ -+ int count = uart->tx_fifo_head - uart->tx_fifo_tail; -+ if (count < 0) { -+ count += uart->tx_fifo_size; -+ } -+ return uart->tx_fifo_size - count; -+} -+#endif -+ -+/* -+ * ubi32_uarttio_get_recv_ready -+ */ -+static int ubi32_uarttio_get_recv_ready(struct uarttio_uart *uart) -+{ -+ int count = uart->rx_fifo_head - uart->rx_fifo_tail; -+ if (count < 0) { -+ count += uart->rx_fifo_size; -+ } -+ return count; -+} -+ -+/* -+ * ubi32_uarttio_get_char() -+ */ -+static u8_t ubi32_uarttio_get_char(struct uarttio_uart *uart) -+{ -+ /* -+ * Retrieve byte -+ */ -+ u32_t tail = uart->rx_fifo_tail; -+ u8_t data = uart->rx_fifo[tail]; -+ -+ if (++tail == uart->rx_fifo_size) { -+ tail = 0; -+ } -+ uart->rx_fifo_tail = tail; -+ -+ return data; -+} -+ -+/* -+ * ubi32_uarttio_put_char() -+ */ -+static int ubi32_uarttio_put_char(struct uarttio_uart *uart, u8_t c) -+{ -+ u32_t head = uart->tx_fifo_head; -+ u32_t prev = head; -+ -+ /* -+ * Wrap -+ */ -+ if (++head == uart->tx_fifo_size) { -+ head = 0; -+ } -+ -+ /* -+ * If there isn't any space, return EBUSY -+ */ -+ if (head == uart->tx_fifo_tail) { -+ return -EBUSY; -+ } -+ -+ /* -+ * Put the character in the queue -+ */ -+ uart->tx_fifo[prev] = c; -+ uart->tx_fifo_head = head; -+ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_set_baud -+ */ -+static int ubi32_uarttio_set_baud(struct ubi32_uarttio_port *uup, unsigned int baud) -+{ -+ if (uup->uart->current_baud_rate == baud) { -+ return 0; -+ } -+ -+ uup->uart->baud_rate = baud; -+ uup->uart->flags |= UARTTIO_UART_FLAG_SET_RATE; -+ while (uup->uart->flags & UARTTIO_UART_FLAG_SET_RATE) { -+ cpu_relax(); -+ } -+ -+ if (uup->uart->current_baud_rate != baud) { -+ /* -+ * Failed to set baud rate -+ */ -+ printk(KERN_WARNING "Invalid baud rate %u, running at %u\n", baud, uup->uart->current_baud_rate); -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_handle_receive -+ */ -+static void ubi32_uarttio_handle_receive(struct ubi32_uarttio_port *uup, int stat) -+{ -+ struct uarttio_uart *uart = uup->uart; -+ struct uart_port *port = &uup->port; -+ struct tty_struct *tty = port->info->port.tty; -+ unsigned char ch = 0; -+ char flag = TTY_NORMAL; -+ int count; -+ -+ if ((stat & (UARTTIO_UART_INT_RX | UARTTIO_UART_INT_RXFRAME | UARTTIO_UART_INT_RXOVF)) == 0) { -+ return; -+ } -+ -+ if (stat & UARTTIO_UART_INT_RX) { -+ count = ubi32_uarttio_get_recv_ready(uart); -+ port->icount.rx += count; -+ } -+ -+ if (stat & UARTTIO_UART_INT_RXOVF) { -+ port->icount.overrun++; -+ } -+ -+ if (stat & UARTTIO_UART_INT_RXFRAME) { -+ port->icount.frame++; -+ } -+ -+ stat &= ~port->ignore_status_mask; -+ -+ if (stat & UARTTIO_UART_INT_RX) { -+ int i; -+ for (i = 0; i < count; i++) { -+ ch = ubi32_uarttio_get_char(uart); -+ tty_insert_flip_char(tty, ch, flag); -+ } -+ } -+ -+ if (stat & UARTTIO_UART_INT_RXFRAME) { -+ tty_insert_flip_char(tty, 0, TTY_FRAME); -+ } -+ -+ if (stat & UARTTIO_UART_INT_RXOVF) { -+ tty_insert_flip_char(tty, 0, TTY_OVERRUN); -+ } -+} -+ -+/* -+ * ubi32_uarttio_stop_tx -+ * interrupts are disabled on entry -+ */ -+static void ubi32_uarttio_stop_tx(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ -+ uup->uart->int_mask &= ~UARTTIO_UART_INT_TXBE; -+} -+ -+/* -+ * ubi32_uarttio_handle_transmit -+ */ -+static void ubi32_uarttio_handle_transmit(struct ubi32_uarttio_port *uup, int stat) -+{ -+ struct uarttio_uart *uart = uup->uart; -+ struct uart_port *port = &uup->port; -+ struct circ_buf *xmit = &port->info->xmit; -+ -+ if (!(stat & UARTTIO_UART_INT_TXBE)) { -+ return; -+ } -+ -+ if (port->x_char) { -+ if (ubi32_uarttio_put_char(uart, port->x_char)) { -+ return; -+ } -+ port->x_char = 0; -+ port->icount.tx++; -+ return; -+ } -+ -+ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { -+ ubi32_uarttio_stop_tx(port); -+ return; -+ } -+ -+ /* -+ * Send as many characters as we can -+ */ -+ while (ubi32_uarttio_put_char(uart, xmit->buf[xmit->tail]) == 0) { -+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); -+ port->icount.tx++; -+ if (uart_circ_empty(xmit)) { -+ break; -+ } -+ } -+ -+ /* wake up */ -+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) { -+ uart_write_wakeup(port); -+ } -+ -+ if (uart_circ_empty(xmit)) { -+ ubi32_uarttio_stop_tx(port); -+ } -+} -+ -+/* -+ * ubi32_uarttio_start_tx -+ * port is locked and interrupts are disabled -+ */ -+static void ubi32_uarttio_start_tx(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ struct uarttio_uart *uart = uup->uart; -+ -+ uart->int_mask |= UARTTIO_UART_INT_TXBE; -+} -+ -+/* -+ * ubi32_uarttio_stop_rx -+ * Interrupts are enabled -+ */ -+static void ubi32_uarttio_stop_rx(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ struct uarttio_uart *uart = uup->uart; -+ -+ /* -+ * don't forward any more data (like !CREAD) -+ */ -+ uart->int_mask &= ~UARTTIO_UART_INT_RX; -+ port->ignore_status_mask = UARTTIO_UART_INT_RX; -+} -+ -+/* -+ * ubi32_uarttio_enable_ms -+ * Set the modem control timer to fire immediately. -+ */ -+static void ubi32_uarttio_enable_ms(struct uart_port *port) -+{ -+ /* N/A */ -+} -+ -+/* -+ * ubi32_uarttio_isr -+ */ -+static irqreturn_t ubi32_uarttio_isr(int irq, void *appdata) -+{ -+ struct ubi32_uarttio_port *uup = uarttio_ports; -+ int i; -+ -+ /* -+ * Service all of the ports -+ */ -+ for (i = 0; i < uarttio_nports; i++) { -+ unsigned int flags; -+ -+ if (!(uup->uart->flags & UARTTIO_UART_FLAG_ENABLED)) { -+ uup++; -+ continue; -+ } -+ -+ spin_lock(&uup->port.lock); -+ -+ flags = uup->uart->int_flags; -+ -+ uup->uart->int_flags = 0; -+ -+ ubi32_uarttio_handle_receive(uup, flags); -+ ubi32_uarttio_handle_transmit(uup, flags); -+ -+ tty_flip_buffer_push(uup->port.info->port.tty); -+ -+ spin_unlock(&uup->port.lock); -+ -+ uup++; -+ } -+ -+ return IRQ_HANDLED; -+} -+ -+/* -+ * ubi32_uarttio_tx_empty -+ * Return TIOCSER_TEMT when transmitter is not busy. -+ */ -+static unsigned int ubi32_uarttio_tx_empty(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ -+ if (uup->uart->tx_fifo_head == uup->uart->tx_fifo_tail) { -+ return TIOCSER_TEMT; -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_get_mctrl -+ */ -+static unsigned int ubi32_uarttio_get_mctrl(struct uart_port *port) -+{ -+ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; -+} -+ -+/* -+ * ubi32_uarttio_set_mctrl -+ */ -+static void ubi32_uarttio_set_mctrl(struct uart_port *port, unsigned int mctrl) -+{ -+ /* N/A */ -+} -+ -+/* -+ * ubi32_uarttio_break_ctl -+ */ -+static void ubi32_uarttio_break_ctl(struct uart_port *port, int break_state) -+{ -+ /* N/A */ -+} -+ -+/* -+ * ubi32_uarttio_startup -+ */ -+static int ubi32_uarttio_startup(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ struct uarttio_uart *uart = uup->uart; -+ -+ uart->flags |= UARTTIO_UART_FLAG_ENABLED; -+ -+ uart->int_mask |= UARTTIO_UART_INT_TXBE | UARTTIO_UART_INT_RX; -+ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_shutdown -+ */ -+static void ubi32_uarttio_shutdown(struct uart_port *port) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ struct uarttio_uart *uart = uup->uart; -+ -+ uart->int_mask = 0; -+ uart->flags &= ~UARTTIO_UART_FLAG_ENABLED; -+} -+ -+/* -+ * ubi32_uarttio_set_termios -+ */ -+static void ubi32_uarttio_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ unsigned long flags; -+ unsigned int baud; -+ -+ spin_lock_irqsave(&port->lock, flags); -+ -+#if 0 -+ port->read_status_mask = UBI32_UARTTIO_RX | UBI32_UARTTIO_RXOVF | UBI32_UARTTIO_TXOVF; -+ -+ if (termios->c_iflag & INPCK) { -+ port->read_status_mask |= UBI32_UARTTIO_RXFRAME; -+ } -+#endif -+ -+ port->ignore_status_mask = 0; -+ if (termios->c_iflag & IGNPAR) { -+ port->ignore_status_mask |= UARTTIO_UART_INT_RXFRAME | -+ UARTTIO_UART_INT_RXOVF; -+ } -+ -+ /* -+ * ignore all characters if CREAD is not set -+ */ -+ if ((termios->c_cflag & CREAD) == 0) { -+ port->ignore_status_mask |= UARTTIO_UART_INT_RX | -+ UARTTIO_UART_INT_RXFRAME | -+ UARTTIO_UART_INT_RXOVF; -+ } -+ -+ /* update timeout */ -+ baud = uart_get_baud_rate(port, termios, old, 0, 460800); -+ uart_update_timeout(port, termios->c_cflag, baud); -+ -+ ubi32_uarttio_set_baud(uup, baud); -+ spin_unlock_irqrestore(&port->lock, flags); -+} -+ -+/* -+ * ubi32_uarttio_type -+ */ -+static const char *ubi32_uarttio_type(struct uart_port *port) -+{ -+ return (port->type == PORT_UBI32_UARTTIO) ? "UBI32_UARTTIO" : NULL; -+} -+ -+/* -+ * ubi32_uarttio_release_port -+ * Release the memory region(s) being used by 'port'. -+ */ -+static void ubi32_uarttio_release_port(struct uart_port *port) -+{ -+} -+ -+/* -+ * ubi32_uarttio_request_port -+ * Request the memory region(s) being used by 'port'. -+ */ -+static int ubi32_uarttio_request_port(struct uart_port *port) -+{ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_config_port -+ * Configure/autoconfigure the port. -+ */ -+static void ubi32_uarttio_config_port(struct uart_port *port, int flags) -+{ -+ if ((flags & UART_CONFIG_TYPE) && (ubi32_uarttio_request_port(port) == 0)) { -+ port->type = PORT_UBI32_UARTTIO; -+ } -+} -+ -+/* -+ * ubi32_uarttio_verify_port -+ * Verify the new serial_struct (for TIOCSSERIAL). -+ * -+ * The only change we allow are to the flags and type, and -+ * even then only between PORT_UBI32_UARTTIO and PORT_UNKNOWN -+ */ -+static int ubi32_uarttio_verify_port(struct uart_port *port, struct serial_struct *ser) -+{ -+ return 0; -+} -+ -+static struct uart_ops ubi32_uarttio_pops = { -+ .tx_empty = ubi32_uarttio_tx_empty, -+ .set_mctrl = ubi32_uarttio_set_mctrl, -+ .get_mctrl = ubi32_uarttio_get_mctrl, -+ .stop_tx = ubi32_uarttio_stop_tx, -+ .start_tx = ubi32_uarttio_start_tx, -+ .stop_rx = ubi32_uarttio_stop_rx, -+ .enable_ms = ubi32_uarttio_enable_ms, -+ .break_ctl = ubi32_uarttio_break_ctl, -+ .startup = ubi32_uarttio_startup, -+ .shutdown = ubi32_uarttio_shutdown, -+ .set_termios = ubi32_uarttio_set_termios, -+ .type = ubi32_uarttio_type, -+ .release_port = ubi32_uarttio_release_port, -+ .request_port = ubi32_uarttio_request_port, -+ .config_port = ubi32_uarttio_config_port, -+ .verify_port = ubi32_uarttio_verify_port, -+}; -+ -+/* -+ * ubi32_uarttio_add_ports -+ */ -+static int __init ubi32_uarttio_add_ports(void) -+{ -+ int res = 0; -+ struct ubi32_uarttio_port *uup = uarttio_ports; -+ int i = 0; -+ -+ for (i = 0; i < uarttio_nports; i++) { -+ /* -+ * Setup the GPIOs -+ */ -+ res = gpio_request(uup->tx_pin, "ubi32_uarttio_tx"); -+ if (res) { -+ printk(KERN_WARNING "Failed to request GPIO %d\n", uup->tx_pin); -+ res = -EBUSY; -+ goto next; -+ } -+ -+ res = gpio_request(uup->rx_pin, "ubi32_uarttio_rx"); -+ if (res) { -+ gpio_free(uup->tx_pin); -+ printk(KERN_WARNING "Failed to request GPIO %d\n", uup->rx_pin); -+ res = -EBUSY; -+ goto next; -+ } -+ -+ res = uart_add_one_port(&ubi32_uarttio_uart_driver, &uup->port); -+ if (res) { -+ gpio_free(uup->rx_pin); -+ gpio_free(uup->tx_pin); -+ res = -ENODEV; -+ printk(KERN_WARNING "Failed to add port %d,%d\n", uup->tx_pin, uup->rx_pin); -+ goto next; -+ } -+ uup->added = 1; -+ -+ /* -+ * Set the direction of the ports now, after we're sure that everything is ok -+ */ -+ if (!uup->port_init) { -+ gpio_direction_output(uup->tx_pin, 1); -+ gpio_direction_input(uup->rx_pin); -+ } -+ -+next: -+ uup++; -+ } -+ return res; -+} -+ -+/* -+ * ubi32_uarttio_cleanup -+ */ -+static void ubi32_uarttio_cleanup(void) -+{ -+ struct ubi32_uarttio_port *uup; -+ int i; -+ -+ /* -+ * Stop the hardware thread -+ */ -+ if (uarttio_inst.regs) { -+ thread_disable(uarttio_inst.regs->thread); -+ } -+ if (uarttio_inst.irq_requested) { -+ free_irq(uarttio_inst.irq, NULL); -+ } -+ -+ /* -+ * Get rid of the ports -+ */ -+ uup = uarttio_inst.ports; -+ for (i = 0; i < uarttio_nports; i++) { -+ gpio_free(uup->tx_pin); -+ gpio_free(uup->rx_pin); -+ if (uup->added) { -+ uart_remove_one_port(&ubi32_uarttio_uart_driver, &uup->port); -+ } -+ uup++; -+ } -+ -+ if (uarttio_inst.driver_registered) { -+ uart_unregister_driver(&ubi32_uarttio_uart_driver); -+ } -+} -+ -+/* -+ * ubi32_uarttio_setup_port -+ * Setup a port in the TIO registers -+ */ -+static int ubi32_uarttio_setup_port(int index, -+ struct uarttio_uart *uart, -+ unsigned int baud, unsigned int tx_pin, -+ unsigned int rx_pin) -+{ -+ struct ubi32_uarttio_port *uup = &uarttio_ports[index]; -+ void *tx_port = ubi_gpio_get_port(tx_pin); -+ void *rx_port = ubi_gpio_get_port(rx_pin); -+ -+ /* -+ * Verify the ports are on chip -+ */ -+ if (!tx_port || !rx_port) { -+ printk(KERN_WARNING "Invalid port(s) specified: %u or %u\n", tx_pin, rx_pin); -+ return -EINVAL; -+ } -+ -+ uup->tx_pin = tx_pin; -+ uup->rx_pin = rx_pin; -+ uup->uart = uart; -+ -+ /* -+ * Setup the port structure -+ */ -+ uup->port.ops = &ubi32_uarttio_pops; -+ uup->port.line = index; -+ uup->port.iotype = UPIO_MEM; -+ uup->port.flags = UPF_BOOT_AUTOCONF; -+ uup->port.fifosize = uup->uart->tx_fifo_size; -+ uup->port.private_data = uup; -+ -+ /* -+ * We share this IRQ across all ports -+ */ -+ uup->port.irq = uarttio_inst.irq; -+ -+ /* -+ * We really don't have a mem/map base but without these variables -+ * set, the serial_core won't startup. -+ */ -+ uup->port.membase = (void __iomem *)uup; -+ uup->port.mapbase = (resource_size_t)uup; -+ spin_lock_init(&uup->port.lock); -+ -+ /* -+ * Set up the hardware -+ */ -+ uart->flags = UARTTIO_UART_FLAG_SET_RATE | UARTTIO_UART_FLAG_RESET; -+ -+ uart->tx_port = (unsigned int)tx_port; -+ uart->tx_pin = gpio_pin_index(tx_pin); -+ uart->tx_bits = 8; -+ uart->tx_stop_bits = 1; -+ -+ uart->rx_port = (unsigned int)rx_port; -+ uart->rx_pin = gpio_pin_index(rx_pin); -+ uart->rx_bits = 8; -+ uart->rx_stop_bits = 1; -+ -+ uart->baud_rate = baud; -+ -+ return 0; -+} -+ -+enum ubi32_uarttio_parse_states { -+ UBI32_UARTTIO_PARSE_STATE_BAUD, -+ UBI32_UARTTIO_PARSE_STATE_TX_PIN, -+ UBI32_UARTTIO_PARSE_STATE_RX_PIN, -+ UBI32_UARTTIO_PARSE_STATE_HS, -+ UBI32_UARTTIO_PARSE_STATE_CTS_PIN, -+ UBI32_UARTTIO_PARSE_STATE_RTS_PIN, -+}; -+ -+/* -+ * ubi32_uarttio_parse_param -+ */ -+static int ubi32_uarttio_parse_param(char *str) -+{ -+ int res; -+ int i; -+ int baud = 0; -+ int tx_pin = 0; -+ int rx_pin = 0; -+ int hs = 0; -+ int cts_pin = 0; -+ int rts_pin = 0; -+ int nfound = 0; -+ enum ubi32_uarttio_parse_states state = UBI32_UARTTIO_PARSE_STATE_BAUD; -+ struct uarttio_uart *uart = uarttio_inst.regs->uarts; -+ -+ /* -+ * Run though the options and generate the proper structures -+ */ -+ res = get_option(&str, &i); -+ while ((res == 2) || (res == 1)) { -+ switch (state) { -+ case UBI32_UARTTIO_PARSE_STATE_BAUD: -+ /* -+ * If we are here and nfound > 0 then create the port -+ * based on the previous input -+ */ -+ if (nfound) { -+ /* -+ * Create the port -+ */ -+ if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) { -+ /* -+ * Port was invalid -+ */ -+ goto fail; -+ } else { -+ printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud); -+ uart++; -+ } -+ } -+ -+ /* -+ * Reset the variables and go to the next state -+ */ -+ hs = 0; -+ baud = i; -+ state = UBI32_UARTTIO_PARSE_STATE_TX_PIN; -+ break; -+ -+ case UBI32_UARTTIO_PARSE_STATE_TX_PIN: -+ tx_pin = i; -+ state = UBI32_UARTTIO_PARSE_STATE_RX_PIN; -+ break; -+ -+ case UBI32_UARTTIO_PARSE_STATE_RX_PIN: -+ rx_pin = i; -+ state = UBI32_UARTTIO_PARSE_STATE_HS; -+ break; -+ -+ case UBI32_UARTTIO_PARSE_STATE_HS: -+ hs = i; -+ if (hs) { -+ state = UBI32_UARTTIO_PARSE_STATE_CTS_PIN; -+ break; -+ } -+ -+ if (nfound == uarttio_inst.regs->max_uarts) { -+ printk(KERN_WARNING "Maximum number of serial ports reached\n"); -+ goto done; -+ } -+ nfound++; -+ state = UBI32_UARTTIO_PARSE_STATE_BAUD; -+ break; -+ -+ case UBI32_UARTTIO_PARSE_STATE_CTS_PIN: -+ cts_pin = i; -+ state = UBI32_UARTTIO_PARSE_STATE_RTS_PIN; -+ break; -+ -+ case UBI32_UARTTIO_PARSE_STATE_RTS_PIN: -+ rts_pin = i; -+ -+ if (nfound == uarttio_inst.regs->max_uarts) { -+ printk(KERN_WARNING "Maximum number of serial ports reached\n"); -+ goto done; -+ } -+ nfound++; -+ state = UBI32_UARTTIO_PARSE_STATE_BAUD; -+ break; -+ } -+ res = get_option(&str, &i); -+ } -+ -+ if ((res > 2) || state != UBI32_UARTTIO_PARSE_STATE_BAUD) { -+ printk(KERN_WARNING "Parameter syntax error.\n"); -+ res = -EINVAL; -+ goto fail; -+ } -+ -+ /* -+ * Create the final port -+ */ -+ if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) { -+ goto fail; -+ } -+ printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud); -+ -+done: -+ uarttio_nports = nfound; -+ -+ return nfound ? 0 : -ENODEV; -+ -+fail: -+ /* -+ * Reset the ports -+ */ -+ uart = uarttio_inst.regs->uarts; -+ for (i = 0; i < uarttio_inst.regs->max_uarts; i++) { -+ uart->flags = 0; -+ uart++; -+ } -+ -+ return res; -+} -+ -+/* -+ * ubi32_uarttio_probe -+ */ -+static int ubi32_uarttio_probe(void) -+{ -+ int ret; -+ struct uarttio_node *uart_node; -+ char *str = utio_ports_param; -+ static int probed; -+ -+ /* -+ * We only want to be probed once, we could be probed twice -+ * for example if we are used as a console -+ */ -+ if (probed) { -+ return 0; -+ } -+ probed = 1; -+ -+ /* -+ * Extract the TIO name from the setup string -+ */ -+ while (*str) { -+ if (*str == ',') { -+ *str++ = 0; -+ break; -+ } -+ str++; -+ } -+ -+ if (!*str) { -+ return -EINVAL; -+ } -+ -+ uart_node = (struct uarttio_node *)devtree_find_node(utio_ports_param); -+ if (!uart_node) { -+ return -ENODEV; -+ } -+ -+ uarttio_inst.irq = uart_node->dn.recvirq; -+ uarttio_inst.regs = uart_node->regs; -+ -+ /* -+ * Parse module parameters. -+ */ -+ ret = ubi32_uarttio_parse_param(str); -+ if (ret != 0) { -+ goto fail; -+ } -+ -+ ubi32_uarttio_uart_driver.nr = uarttio_nports; -+ -+ return 0; -+ -+fail: -+ ubi32_uarttio_cleanup(); -+ return ret; -+} -+ -+#if defined(CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE) -+/* -+ * ubi32_uarttio_console_setup -+ */ -+static int __init ubi32_uarttio_console_setup(struct console *co, char *options) -+{ -+ int baud; -+ int bits = 8; -+ int parity = 'n'; -+ int flow = 'n'; -+ struct ubi32_uarttio_port *uup; -+ -+ /* -+ * Check whether an invalid uart number has been specified, and -+ * if so, search for the first available port that does have -+ * console support. -+ */ -+ if (co->index == -1 || co->index >= uarttio_nports) { -+ co->index = 0; -+ } -+ uup = &uarttio_ports[co->index]; -+ baud = uup->uart->baud_rate; -+ uup->uart->flags |= UARTTIO_UART_FLAG_ENABLED; -+ -+ /* -+ * Setup the GPIOs -+ * We have to use the direct interface because the gpio -+ * subsystem is not available at this point. -+ */ -+ uup->port_init = 1; -+ UBICOM32_GPIO_SET_PIN_HIGH(uup->tx_pin); -+ UBICOM32_GPIO_SET_PIN_OUTPUT(uup->tx_pin); -+ UBICOM32_GPIO_SET_PIN_INPUT(uup->rx_pin); -+ -+ /* -+ * Start the thread -+ */ -+ thread_enable(uarttio_inst.regs->thread); -+ -+ /* -+ * Process options -+ */ -+ if (options) { -+ uart_parse_options(options, &baud, &parity, &bits, &flow); -+ if (ubi32_uarttio_set_baud(uup, baud)) { -+ baud = uup->uart->current_baud_rate; -+ } -+ } -+ -+ return uart_set_options(&uup->port, co, baud, 'n', 8, 'n'); -+} -+ -+/* -+ * ubi32_uarttio_console_putchar -+ */ -+static void ubi32_uarttio_console_putchar(struct uart_port *port, int ch) -+{ -+ struct ubi32_uarttio_port *uup = port->private_data; -+ -+ while (ubi32_uarttio_put_char(uup->uart, ch)) { -+ cpu_relax(); -+ } -+} -+ -+/* -+ * ubi32_uarttio_console_write -+ * Interrupts are disabled on entering -+ */ -+static void ubi32_uarttio_console_write(struct console *co, const char *s, unsigned int count) -+{ -+ struct uart_port *port = &(uarttio_ports[co->index].port); -+ unsigned long flags = 0; -+ -+ spin_lock_irqsave(&port->lock, flags); -+ uart_console_write(port, s, count, ubi32_uarttio_console_putchar); -+ spin_unlock_irqrestore(&port->lock, flags); -+} -+ -+static struct console ubi32_uarttio_console = { -+ .name = UBI32_UARTTIO_NAME, -+ .write = ubi32_uarttio_console_write, -+ .device = uart_console_device, -+ .setup = ubi32_uarttio_console_setup, -+ .flags = CON_PRINTBUFFER, -+ .index = -1, -+ .data = &ubi32_uarttio_uart_driver, -+}; -+ -+static int __init ubi32_uarttio_console_init(void) -+{ -+ int res; -+ -+ res = ubi32_uarttio_probe(); -+ if (res) { -+ return res; -+ } -+ -+ register_console(&ubi32_uarttio_console); -+ return 0; -+} -+console_initcall(ubi32_uarttio_console_init); -+#endif /* CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE */ -+ -+/* -+ * ubi32_serial_suspend -+ */ -+static int ubi32_uarttio_suspend(struct platform_device *pdev, pm_message_t state) -+{ -+ int i; -+ for (i = 0; i < uarttio_nports; i++) { -+ uart_suspend_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port); -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubi32_serial_resume -+ */ -+static int ubi32_uarttio_resume(struct platform_device *pdev) -+{ -+ int i; -+ for (i = 0; i < uarttio_nports; i++) { -+ uart_resume_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port); -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubi32_uarttio_remove -+ */ -+static int __devexit ubi32_uarttio_remove(struct platform_device *pdev) -+{ -+ ubi32_uarttio_cleanup(); -+ -+ uart_unregister_driver(&ubi32_uarttio_uart_driver); -+ -+ return 0; -+} -+ -+static struct platform_driver ubi32_uarttio_platform_driver = { -+ .remove = __devexit_p(ubi32_uarttio_remove), -+ .suspend = ubi32_uarttio_suspend, -+ .resume = ubi32_uarttio_resume, -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+#ifndef MODULE -+/* -+ * Called at boot time. -+ * -+ * uarttio=TIONAME,(baud,tx_pin,rx_pin,handshake[,cts_pin,rts_pin],...) -+ * TIONAME is the name of the devtree node which describes the UARTTIO -+ * pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin] -+ * handshake = 1 to enable handshaking, provide cts_pin, rts_pin (UNSUPPORTED) -+ * handshake = 0 to disable handshaking, do not provide cts_pin, rts_pin -+ * Ex: uarttio=UARTTIO,57600,7,6,0,9600,8,9,0 -+ */ -+static int __init ubi32_uarttio_setup(char *str) -+{ -+ strncpy(utio_ports_param, str, UBI32_UARTTIO_MAX_PARAM_LEN); -+ utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN - 1] = 0; -+ return 1; -+} -+__setup("uarttio=", ubi32_uarttio_setup); -+#endif -+ -+/* -+ * ubi32_uarttio_init -+ */ -+static int __init ubi32_uarttio_init(void) -+{ -+ int ret; -+ int i; -+ -+ ret = ubi32_uarttio_probe(); -+ if (ret) { -+ return ret; -+ } -+ -+ /* -+ * Request the IRQ (do it here since many ports share the same IRQ) -+ */ -+ ret = request_irq(uarttio_inst.irq, ubi32_uarttio_isr, IRQF_DISABLED, DRIVER_NAME, NULL); -+ if (ret != 0) { -+ printk(KERN_WARNING "Could not request IRQ %d\n", uarttio_inst.irq); -+ goto fail; -+ } -+ uarttio_inst.irq_requested = 1; -+ -+ /* -+ * Register the UART driver and add the ports -+ */ -+ ret = uart_register_driver(&ubi32_uarttio_uart_driver); -+ if (ret != 0) { -+ goto fail; -+ } -+ uarttio_inst.driver_registered = 1; -+ -+ ret = ubi32_uarttio_add_ports(); -+ if (ret != 0) { -+ ubi32_uarttio_cleanup(); -+ return ret; -+ } -+ -+ /* -+ * Start the thread -+ */ -+ thread_enable(uarttio_inst.regs->thread); -+ -+ for (i = 0; i < uarttio_nports; i++) { -+ pr_info("Serial: Ubicom32 uarttio #%d: tx:%d rx:%d baud:%d\n", -+ i, uarttio_ports[i].tx_pin, uarttio_ports[i].rx_pin, -+ uarttio_ports[i].uart->current_baud_rate); -+ } -+ pr_info("Serial: Ubicom32 uarttio started on thread:%d irq:%d\n", uarttio_inst.regs->thread, uarttio_inst.irq); -+ -+ return ret; -+ -+fail: -+ ubi32_uarttio_cleanup(); -+ return ret; -+} -+module_init(ubi32_uarttio_init); -+ -+/* -+ * ubi32_uarttio_exit -+ */ -+static void __exit ubi32_uarttio_exit(void) -+{ -+ platform_driver_unregister(&ubi32_uarttio_platform_driver); -+} -+module_exit(ubi32_uarttio_exit); -+ -+module_param_string(ports, utio_ports_param, sizeof(utio_ports_param), 0444); -+MODULE_PARM_DESC(ports, "Sets the ports to allocate: ports=TIONAME,(baud,txpin,rxpin,handshake[,ctspin,rtspin],...)\n" -+ " TIONAME is the name of the devtree node which describes the UARTTIO\n" -+ " pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin]\n" -+ " handshake = 1 to enable handshaking, provide ctspin, rtspin (UNSUPPORTED)\n" -+ " handshake = 0 to disable handshaking, do not provide ctspin, rtspin\n" -+ " Ex: ports=UARTTIO,57600,7,6,0,9600,8,9,0\n"); -+MODULE_AUTHOR("Patrick Tjin <pat.tjin@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom serial virtual peripherial driver"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS_CHARDEV_MAJOR(UBI32_UARTTIO_MAJOR); -+MODULE_ALIAS("platform:" DRIVER_NAME); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -196,6 +196,15 @@ config SPI_S3C24XX - help - SPI driver for Samsung S3C24XX series ARM SoCs - -+config SPI_UBICOM32_GPIO -+ tristate "Ubicom32 SPI over GPIO" -+ depends on SPI_MASTER && UBICOM32 && EXPERIMENTAL -+ select SPI_BITBANG -+ select HAS_DMA -+ help -+ SPI driver for the Ubicom32 architecture using -+ GPIO lines to provide the SPI bus. -+ - config SPI_S3C24XX_GPIO - tristate "Samsung S3C24XX series SPI by GPIO" - depends on ARCH_S3C2410 && EXPERIMENTAL ---- a/drivers/spi/Makefile -+++ b/drivers/spi/Makefile -@@ -27,6 +27,7 @@ obj-$(CONFIG_SPI_ORION) += orion_spi.o - obj-$(CONFIG_SPI_MPC52xx_PSC) += mpc52xx_psc_spi.o - obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o - obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o -+obj-$(CONFIG_SPI_UBICOM32_GPIO) += spi_ubicom32_gpio.o - obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o - obj-$(CONFIG_SPI_TXX9) += spi_txx9.o - obj-$(CONFIG_SPI_XILINX) += xilinx_spi.o ---- /dev/null -+++ b/drivers/spi/spi_ubicom32_gpio.c -@@ -0,0 +1,268 @@ -+/* -+ * drivers/spi_spi_ubicom32_gpio.c -+ * Ubicom32 GPIO based SPI driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/delay.h> -+#include <linux/spinlock.h> -+#include <linux/workqueue.h> -+#include <linux/platform_device.h> -+ -+#include <linux/spi/spi.h> -+#include <linux/spi/spi_bitbang.h> -+ -+#include <linux/gpio.h> -+ -+#include <asm/ip5000.h> -+#include <asm/ubicom32-spi-gpio.h> -+ -+#define DRIVER_NAME "ubicom32-spi-gpio" -+ -+struct ubicom32_spi_gpio { -+ struct spi_bitbang bitbang; -+ -+ struct ubicom32_spi_gpio_platform_data *pdata; -+ -+ struct platform_device *dev; -+}; -+ -+/* -+ * The following 4 functions are used by EXPAND_BITBANG_TXRX to bitbang the data out. -+ */ -+static inline void setsck(struct spi_device *dev, int on) -+{ -+ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master); -+ gpio_set_value(usg->pdata->pin_clk, on ? 1 : 0); -+} -+ -+static inline void setmosi(struct spi_device *dev, int on) -+{ -+ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master); -+ gpio_set_value(usg->pdata->pin_mosi, on ? 1 : 0); -+} -+ -+static inline u32 getmiso(struct spi_device *dev) -+{ -+ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master); -+ return gpio_get_value(usg->pdata->pin_miso) ? 1 : 0; -+} -+ -+#define spidelay(x) ndelay(x) -+ -+#define EXPAND_BITBANG_TXRX -+#include <linux/spi/spi_bitbang.h> -+ -+/* -+ * ubicom32_spi_gpio_txrx_mode0 -+ */ -+static u32 ubicom32_spi_gpio_txrx_mode0(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits); -+} -+ -+/* -+ * ubicom32_spi_gpio_txrx_mode1 -+ */ -+static u32 ubicom32_spi_gpio_txrx_mode1(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits); -+} -+ -+/* -+ * ubicom32_spi_gpio_txrx_mode2 -+ */ -+static u32 ubicom32_spi_gpio_txrx_mode2(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits); -+} -+ -+/* -+ * ubicom32_spi_gpio_txrx_mode3 -+ */ -+static u32 ubicom32_spi_gpio_txrx_mode3(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits); -+} -+ -+/* -+ * ubicom32_spi_gpio_chipselect -+ */ -+static void ubicom32_spi_gpio_chipselect(struct spi_device *dev, int value) -+{ -+ struct ubicom32_spi_gpio_controller_data *cd = (struct ubicom32_spi_gpio_controller_data *)dev->controller_data; -+ unsigned int cs_polarity = dev->mode & SPI_CS_HIGH ? 1 : 0; -+ -+ if (value == BITBANG_CS_ACTIVE) { -+ gpio_set_value(cd->pin_cs, cs_polarity); -+ return; -+ } -+ gpio_set_value(cd->pin_cs, !cs_polarity); -+} -+ -+/* -+ * ubicom32_spi_gpio_probe -+ */ -+static int ubicom32_spi_gpio_probe(struct platform_device *dev) -+{ -+ struct ubicom32_spi_gpio_platform_data *pdata; -+ struct spi_master *master; -+ struct ubicom32_spi_gpio *usg; -+ int ret; -+ -+ master = spi_alloc_master(&dev->dev, sizeof(struct ubicom32_spi_gpio)); -+ if (master == NULL) { -+ dev_err(&dev->dev, "failed to allocate spi master\n"); -+ ret = -ENOMEM; -+ goto err; -+ } -+ -+ usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(master); -+ -+ platform_set_drvdata(dev, usg); -+ -+ /* -+ * Copy in the platform data -+ */ -+ pdata = dev->dev.platform_data; -+ usg->pdata = dev->dev.platform_data; -+ -+ /* -+ * Request the GPIO lines -+ */ -+ ret = gpio_request(pdata->pin_mosi, "spi-mosi"); -+ if (ret) { -+ dev_err(&dev->dev, "Failed to allocate spi-mosi GPIO\n"); -+ goto err; -+ } -+ -+ ret = gpio_request(pdata->pin_miso, "spi-miso"); -+ if (ret) { -+ dev_err(&dev->dev, "Failed to allocate spi-miso GPIO\n"); -+ goto err_nomiso; -+ } -+ -+ ret = gpio_request(pdata->pin_clk, "spi-clk"); -+ if (ret) { -+ dev_err(&dev->dev, "Failed to allocate spi-clk GPIO\n"); -+ goto err_noclk; -+ } -+ -+ /* -+ * Setup spi-bitbang adaptor -+ */ -+ usg->bitbang.flags |= SPI_CS_HIGH; -+ usg->bitbang.master = spi_master_get(master); -+ usg->bitbang.master->bus_num = pdata->bus_num; -+ usg->bitbang.master->num_chipselect = pdata->num_chipselect; -+ usg->bitbang.chipselect = ubicom32_spi_gpio_chipselect; -+ -+ usg->bitbang.txrx_word[SPI_MODE_0] = ubicom32_spi_gpio_txrx_mode0; -+ usg->bitbang.txrx_word[SPI_MODE_1] = ubicom32_spi_gpio_txrx_mode1; -+ usg->bitbang.txrx_word[SPI_MODE_2] = ubicom32_spi_gpio_txrx_mode2; -+ usg->bitbang.txrx_word[SPI_MODE_3] = ubicom32_spi_gpio_txrx_mode3; -+ -+ /* -+ * Setup the GPIO pins -+ */ -+ gpio_direction_output(pdata->pin_clk, pdata->clk_default); -+ gpio_direction_output(pdata->pin_mosi, 0); -+ gpio_direction_input(pdata->pin_miso); -+ -+ /* -+ * Ready to go -+ */ -+ ret = spi_bitbang_start(&usg->bitbang); -+ if (ret) { -+ goto err_no_bitbang; -+ } -+ -+ return 0; -+ -+err_no_bitbang: -+ spi_master_put(usg->bitbang.master); -+ -+ gpio_free(pdata->pin_clk); -+ -+err_noclk: -+ gpio_free(pdata->pin_miso); -+ -+err_nomiso: -+ gpio_free(pdata->pin_mosi); -+ -+err: -+ return ret; -+} -+ -+/* -+ * ubicom32_spi_gpio_remove -+ */ -+static int ubicom32_spi_gpio_remove(struct platform_device *dev) -+{ -+ struct ubicom32_spi_gpio *sp = platform_get_drvdata(dev); -+ -+ spi_bitbang_stop(&sp->bitbang); -+ spi_master_put(sp->bitbang.master); -+ -+ return 0; -+} -+ -+/* -+ * Work with hotplug and coldplug -+ */ -+MODULE_ALIAS("platform:ubicom32_spi_gpio"); -+ -+static struct platform_driver ubicom32_spi_gpio_drv = { -+ .probe = ubicom32_spi_gpio_probe, -+ .remove = ubicom32_spi_gpio_remove, -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+/* -+ * ubicom32_spi_gpio_init -+ */ -+static int __init ubicom32_spi_gpio_init(void) -+{ -+ return platform_driver_register(&ubicom32_spi_gpio_drv); -+} -+ -+/* -+ * ubicom32_spi_gpio_exit -+ */ -+static void __exit ubicom32_spi_gpio_exit(void) -+{ -+ platform_driver_unregister(&ubicom32_spi_gpio_drv); -+} -+ -+module_init(ubicom32_spi_gpio_init); -+module_exit(ubicom32_spi_gpio_exit); -+ -+MODULE_DESCRIPTION("Ubicom32 SPI-GPIO Driver"); -+MODULE_AUTHOR("Pat Tjin, <@ubicom.com>"); -+MODULE_LICENSE("GPL"); ---- a/drivers/uio/Kconfig -+++ b/drivers/uio/Kconfig -@@ -71,4 +71,12 @@ config UIO_SERCOS3 - - If you compile this as a module, it will be called uio_sercos3. - -+config UIO_UBICOM32RING -+ tristate "Ubicom32 Ring Buffer driver" -+ default n -+ help -+ Userspace I/O interface for a Ubicom32 Ring Buffer. -+ -+ If you compile this as a module, it will be called uio_ubicom32ring -+ - endif ---- a/drivers/uio/Makefile -+++ b/drivers/uio/Makefile -@@ -4,3 +4,4 @@ obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o - obj-$(CONFIG_UIO_PDRV_GENIRQ) += uio_pdrv_genirq.o - obj-$(CONFIG_UIO_SMX) += uio_smx.o - obj-$(CONFIG_UIO_SERCOS3) += uio_sercos3.o -+obj-$(CONFIG_UIO_UBICOM32RING) += uio_ubicom32ring.o ---- /dev/null -+++ b/drivers/uio/uio_ubicom32ring.c -@@ -0,0 +1,289 @@ -+/* -+ * drivers/uio/uio_ubicom32ring.c -+ * -+ * Userspace I/O platform driver for Ubicom32 ring buffers -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * Based on uio_ubicom32ring.c by Magnus Damm -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/platform_device.h> -+#include <linux/uio_driver.h> -+#include <linux/spinlock.h> -+#include <linux/bitops.h> -+#include <linux/interrupt.h> -+#include <linux/stringify.h> -+ -+#include <asm/ip5000.h> -+#include <asm/ubicom32ring.h> -+ -+#define DRIVER_NAME "uio_ubicom32ring" -+ -+struct uio_ubicom32ring_data { -+ struct uio_info *uioinfo; -+ -+ struct uio_ubicom32ring_regs *regs; -+ -+ /* -+ * IRQ used to kick the ring buffer -+ */ -+ int irq_tx; -+ int irq_rx; -+ -+ spinlock_t lock; -+ -+ unsigned long flags; -+ -+ char name[0]; -+}; -+ -+static irqreturn_t uio_ubicom32ring_handler(int irq, struct uio_info *dev_info) -+{ -+ struct uio_ubicom32ring_data *priv = dev_info->priv; -+ -+ /* Just disable the interrupt in the interrupt controller, and -+ * remember the state so we can allow user space to enable it later. -+ */ -+ -+ if (!test_and_set_bit(0, &priv->flags)) -+ disable_irq_nosync(irq); -+ -+ return IRQ_HANDLED; -+} -+ -+static int uio_ubicom32ring_irqcontrol(struct uio_info *dev_info, s32 irq_on) -+{ -+ struct uio_ubicom32ring_data *priv = dev_info->priv; -+ unsigned long flags; -+ -+ /* Allow user space to enable and disable the interrupt -+ * in the interrupt controller, but keep track of the -+ * state to prevent per-irq depth damage. -+ * -+ * Serialize this operation to support multiple tasks. -+ */ -+ -+ spin_lock_irqsave(&priv->lock, flags); -+ -+ if (irq_on & 2) { -+ /* -+ * Kick the ring buffer (if we can) -+ */ -+ if (priv->irq_tx != 0xFF) { -+ ubicom32_set_interrupt(priv->irq_tx); -+ } -+ } -+ -+ if (priv->irq_rx != 0xFF) { -+ if (irq_on & 1) { -+ if (test_and_clear_bit(0, &priv->flags)) -+ enable_irq(dev_info->irq); -+ } else { -+ if (!test_and_set_bit(0, &priv->flags)) -+ disable_irq(dev_info->irq); -+ } -+ } -+ -+ spin_unlock_irqrestore(&priv->lock, flags); -+ -+ return 0; -+} -+ -+static int uio_ubicom32ring_probe(struct platform_device *pdev) -+{ -+ struct uio_info *uioinfo; -+ struct uio_mem *uiomem; -+ struct uio_ubicom32ring_data *priv; -+ struct uio_ubicom32ring_regs *regs; -+ struct resource *mem_resource; -+ struct resource *irqtx_resource; -+ struct resource *irqrx_resource; -+ int ret = -EINVAL; -+ int i; -+ -+ uioinfo = kzalloc(sizeof(struct uio_info), GFP_KERNEL); -+ if (!uioinfo) { -+ dev_err(&pdev->dev, "unable to kmalloc\n"); -+ return -ENOMEM; -+ } -+ -+ /* -+ * Allocate private data with some string space after -+ */ -+ i = sizeof(DRIVER_NAME) + 1; -+ i += pdev->dev.platform_data ? strlen(pdev->dev.platform_data) : 0; -+ priv = kzalloc(sizeof(struct uio_ubicom32ring_data) + i, GFP_KERNEL); -+ if (!priv) { -+ dev_err(&pdev->dev, "unable to kmalloc\n"); -+ kfree(uioinfo); -+ return -ENOMEM; -+ } -+ -+ strcpy(priv->name, DRIVER_NAME ":"); -+ if (pdev->dev.platform_data) { -+ strcat(priv->name, pdev->dev.platform_data); -+ } -+ uioinfo->priv = priv; -+ uioinfo->name = priv->name; -+ uioinfo->version = "0.1"; -+ -+ priv->uioinfo = uioinfo; -+ spin_lock_init(&priv->lock); -+ priv->flags = 0; /* interrupt is enabled to begin with */ -+ -+ /* -+ * Get our resources, the IRQ_TX and IRQ_RX are optional. -+ */ -+ priv->irq_tx = 0xFF; -+ irqtx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (irqtx_resource) { -+ priv->irq_tx = irqtx_resource->start; -+ } -+ -+ uioinfo->irq = -1; -+ priv->irq_rx = 0xFF; -+ irqrx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 1); -+ if (irqrx_resource) { -+ priv->irq_rx = irqrx_resource->start; -+ uioinfo->irq = priv->irq_rx; -+ uioinfo->handler = uio_ubicom32ring_handler; -+ } -+ -+ mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!mem_resource || !mem_resource->start) { -+ dev_err(&pdev->dev, "No valid memory resource found\n"); -+ ret = -ENODEV; -+ goto fail; -+ } -+ regs = (struct uio_ubicom32ring_regs *)mem_resource->start; -+ priv->regs = regs; -+ -+ if (regs->version != UIO_UBICOM32RING_REG_VERSION) { -+ dev_err(&pdev->dev, "version %d not supported\n", regs->version); -+ ret = -ENODEV; -+ goto fail; -+ } -+ -+ /* -+ * First range is the shared register space, if we have any -+ */ -+ uiomem = &uioinfo->mem[0]; -+ if (regs->regs_size) { -+ uiomem->memtype = UIO_MEM_PHYS; -+ uiomem->addr = (u32_t)regs->regs; -+ uiomem->size = regs->regs_size; -+ ++uiomem; -+ dev_info(&pdev->dev, "regs:%p (%u) / rings: %d found\n", regs->regs, regs->regs_size, regs->num_rings); -+ } else { -+ dev_info(&pdev->dev, "rings: %d found\n", regs->num_rings); -+ } -+ -+ /* -+ * The rest of the range correspond to the rings -+ */ -+ for (i = 0; i < regs->num_rings; i++) { -+ dev_info(&pdev->dev, "\t%d: entries:%d ring:%p\n", -+ i, regs->rings[i]->entries, &(regs->rings[i]->ring)); -+ if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) { -+ dev_warn(&pdev->dev, "device has more than " -+ __stringify(MAX_UIO_MAPS) -+ " I/O memory resources.\n"); -+ break; -+ } -+ -+ uiomem->memtype = UIO_MEM_PHYS; -+ uiomem->addr = (u32_t)&(regs->rings[i]->head); -+ uiomem->size = (regs->rings[i]->entries * sizeof(u32_t)) + -+ sizeof(struct uio_ubicom32ring_desc); -+ ++uiomem; -+ } -+ -+ while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) { -+ uiomem->size = 0; -+ ++uiomem; -+ } -+ -+ /* This driver requires no hardware specific kernel code to handle -+ * interrupts. Instead, the interrupt handler simply disables the -+ * interrupt in the interrupt controller. User space is responsible -+ * for performing hardware specific acknowledge and re-enabling of -+ * the interrupt in the interrupt controller. -+ * -+ * Interrupt sharing is not supported. -+ */ -+ uioinfo->irq_flags = IRQF_DISABLED; -+ uioinfo->irqcontrol = uio_ubicom32ring_irqcontrol; -+ -+ ret = uio_register_device(&pdev->dev, priv->uioinfo); -+ if (ret) { -+ dev_err(&pdev->dev, "unable to register uio device\n"); -+ goto fail; -+ } -+ -+ platform_set_drvdata(pdev, priv); -+ -+ dev_info(&pdev->dev, "'%s' using irq: rx %d tx %d, regs %p\n", -+ priv->name, priv->irq_rx, priv->irq_tx, priv->regs); -+ -+ return 0; -+ -+fail: -+ kfree(uioinfo); -+ kfree(priv); -+ return ret; -+} -+ -+static int uio_ubicom32ring_remove(struct platform_device *pdev) -+{ -+ struct uio_ubicom32ring_data *priv = platform_get_drvdata(pdev); -+ -+ uio_unregister_device(priv->uioinfo); -+ kfree(priv->uioinfo); -+ kfree(priv); -+ return 0; -+} -+ -+static struct platform_driver uio_ubicom32ring = { -+ .probe = uio_ubicom32ring_probe, -+ .remove = uio_ubicom32ring_remove, -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init uio_ubicom32ring_init(void) -+{ -+ return platform_driver_register(&uio_ubicom32ring); -+} -+ -+static void __exit uio_ubicom32ring_exit(void) -+{ -+ platform_driver_unregister(&uio_ubicom32ring); -+} -+ -+module_init(uio_ubicom32ring_init); -+module_exit(uio_ubicom32ring_exit); -+ -+MODULE_AUTHOR("Patrick Tjin"); -+MODULE_DESCRIPTION("Userspace I/O driver for Ubicom32 ring buffers"); -+MODULE_LICENSE("GPL v2"); -+MODULE_ALIAS("platform:" DRIVER_NAME); -+ ---- a/drivers/usb/gadget/epautoconf.c -+++ b/drivers/usb/gadget/epautoconf.c -@@ -154,6 +154,10 @@ ep_matches ( - /* configure your hardware with enough buffering!! */ - } - break; -+ -+ case USB_ENDPOINT_XFER_BULK: -+ if ((gadget->is_dualspeed) && (ep->maxpacket < 512)) -+ return 0; - } - - /* MATCH!! */ -@@ -174,7 +178,7 @@ ep_matches ( - return 0; - desc->bEndpointAddress |= epnum; - } -- -+ - /* report (variable) full speed bulk maxpacket */ - if (USB_ENDPOINT_XFER_BULK == type) { - int size = ep->maxpacket; ---- a/drivers/usb/Kconfig -+++ b/drivers/usb/Kconfig -@@ -22,6 +22,7 @@ config USB_ARCH_HAS_HCD - default y if PCMCIA && !M32R # sl811_cs - default y if ARM # SL-811 - default y if SUPERH # r8a66597-hcd -+ default y if UBICOM32 # Ubicom's onchip USB Duial role controller - default PCI - - # many non-PCI SOC chips embed OHCI ---- a/drivers/usb/musb/Kconfig -+++ b/drivers/usb/musb/Kconfig -@@ -11,7 +11,7 @@ config USB_MUSB_HDRC - depends on (USB || USB_GADGET) && HAVE_CLK - depends on !SUPERH - select TWL4030_USB if MACH_OMAP_3430SDP -- tristate 'Inventra Highspeed Dual Role Controller (TI, ...)' -+ tristate 'Inventra Highspeed Dual Role Controller (TI, Ubicom, ...)' - help - Say Y here if your system has a dual role high speed USB - controller based on the Mentor Graphics silicon IP. Then ---- a/drivers/usb/musb/Makefile -+++ b/drivers/usb/musb/Makefile -@@ -22,6 +22,10 @@ ifeq ($(CONFIG_ARCH_OMAP3430),y) - musb_hdrc-objs += omap2430.o - endif - -+ifeq ($(CONFIG_UBICOM32), y) -+ musb_hdrc-objs += ubi32_usb.o -+endif -+ - ifeq ($(CONFIG_USB_GADGET_MUSB_HDRC),y) - musb_hdrc-objs += musb_gadget_ep0.o musb_gadget.o - endif ---- a/drivers/usb/musb/musb_core.c -+++ b/drivers/usb/musb/musb_core.c -@@ -105,6 +105,13 @@ - #include <asm/mach-types.h> - #endif - -+#ifdef CONFIG_UBICOM32 -+#include <asm/ip5000.h> -+#include <asm/ubicom32-tio.h> -+extern void ubi32_usb_init(void); -+extern void ubi32_usb_int_clr(void); -+#endif -+ - #include "musb_core.h" - - -@@ -147,7 +154,7 @@ static inline struct musb *dev_to_musb(s - } - - /*-------------------------------------------------------------------------*/ -- -+#ifndef CONFIG_UBICOM32 - #ifndef CONFIG_USB_TUSB6010 - /* - * Load an endpoint's FIFO -@@ -226,8 +233,38 @@ void musb_read_fifo(struct musb_hw_ep *h - readsb(fifo, dst, len); - } - } -+#endif /* T6010 */ -+#else /* UBICOM */ -+ -+/* -+ * Load an endpoint's FIFO -+ */ -+void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 wCount, const u8 *pSource) -+{ -+ void __iomem *fifo = hw_ep->fifo; -+ -+ prefetch((u8 *)pSource); -+ -+ DBG(4, "%cX ep%d fifo %p count %d buf %p\n", -+ 'T', hw_ep->epnum, fifo, wCount, pSource); -+ -+ usb_tio_write_fifo((u32)fifo, (u32)pSource, wCount); -+ -+} - --#endif /* normal PIO */ -+ -+/* -+ * Unload an endpoint's FIFO -+ */ -+void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 wCount, u8 *pDest) -+{ -+ -+ void __iomem *fifo = hw_ep->fifo; -+ DBG(4, "%cX ep%d fifo %p count %d buf %p\n", -+ 'R', hw_ep->epnum, fifo, wCount, pDest); -+ usb_tio_read_fifo((u32)fifo, (u32)pDest, wCount); -+} -+#endif /* CONFIG_UBICOM32 */ - - - /*-------------------------------------------------------------------------*/ -@@ -872,12 +909,19 @@ void musb_start(struct musb *musb) - musb_writeb(regs, MUSB_TESTMODE, 0); - - /* put into basic highspeed mode and start session */ -+#ifndef CONFIG_UBICOM32 - musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE - | MUSB_POWER_SOFTCONN - | MUSB_POWER_HSENAB - /* ENSUSPEND wedges tusb */ - /* | MUSB_POWER_ENSUSPEND */ - ); -+#else -+ musb_writeb(regs, MUSB_POWER, MUSB_POWER_HSENAB -+ /* ENSUSPEND wedges tusb */ -+ /* | MUSB_POWER_ENSUSPEND */ -+ ); -+#endif - - musb->is_active = 0; - devctl = musb_readb(regs, MUSB_DEVCTL); -@@ -1079,6 +1123,7 @@ static struct fifo_cfg __initdata mode_4 - }; - - -+#ifndef CONFIG_UBICOM32 - /* - * configure a fifo; for non-shared endpoints, this may be called - * once for a tx fifo and once for an rx fifo. -@@ -1238,7 +1283,7 @@ static int __init ep_config_from_table(s - - return 0; - } -- -+#endif /* CONFIG_UBICOM32 */ - - /* - * ep_config_from_hw - when MUSB_C_DYNFIFO_DEF is false -@@ -1253,13 +1298,23 @@ static int __init ep_config_from_hw(stru - DBG(2, "<== static silicon ep config\n"); - - /* FIXME pick up ep0 maxpacket size */ -+#ifdef CONFIG_UBICOM32 -+ /* set ep0 to shared_fifo, otherwise urb will be put to out_qh but ep0_irq try to get the urb from in_qh*/ -+ hw_ep = musb->endpoints; -+ hw_ep->is_shared_fifo = true; -+#endif - - for (epnum = 1; epnum < musb->config->num_eps; epnum++) { - musb_ep_select(mbase, epnum); - hw_ep = musb->endpoints + epnum; - - /* read from core using indexed model */ -+#ifndef CONFIG_UBICOM32 - reg = musb_readb(hw_ep->regs, 0x10 + MUSB_FIFOSIZE); -+#else -+ reg = musb_readb(musb->mregs, 0x10 + MUSB_FIFOSIZE); -+#endif -+ - if (!reg) { - /* 0's returned when no more endpoints */ - break; -@@ -1272,8 +1327,10 @@ static int __init ep_config_from_hw(stru - /* shared TX/RX FIFO? */ - if ((reg & 0xf0) == 0xf0) { - hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx; -- hw_ep->is_shared_fifo = true; -- continue; -+ hw_ep->is_shared_fifo = true; -+#ifndef CONFIG_UBICOM32 -+ continue; /* For ubicom processors, shared ep is all we get */ -+#endif - } else { - hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4); - hw_ep->is_shared_fifo = false; -@@ -1290,17 +1347,30 @@ static int __init ep_config_from_hw(stru - /* REVISIT: this algorithm is lazy, we should at least - * try to pick a double buffered endpoint. - */ -+#ifndef CONFIG_UBICOM32 - if (musb->bulk_ep) - continue; - musb->bulk_ep = hw_ep; -+#else -+ if ((musb->bulk_ep_in) && (musb->bulk_ep_out)) -+ continue; -+ /* Save theEP with 1024 Bytes FIFO for ISO */ -+ if(hw_ep->max_packet_sz_tx == 512) { -+ if (!musb->bulk_ep_in) { -+ musb->bulk_ep_in = hw_ep; -+ } else if (!musb->bulk_ep_out) { -+ musb->bulk_ep_out = hw_ep; -+ } -+ } -+#endif /* CONFIG_UBICOM32 */ - #endif - } - - #ifdef CONFIG_USB_MUSB_HDRC_HCD -- if (!musb->bulk_ep) { -+ if ((!musb->bulk_ep_in) || (!musb->bulk_ep_out)) { - pr_debug("%s: missing bulk\n", musb_driver_name); - return -EINVAL; -- } -+ } - #endif - - return 0; -@@ -1408,12 +1478,16 @@ static int __init musb_core_init(u16 mus - musb->epmask = 1; - - if (reg & MUSB_CONFIGDATA_DYNFIFO) { -+#ifndef CONFIG_UBICOM32 - if (musb->config->dyn_fifo) - status = ep_config_from_table(musb); -- else { -+ else -+#endif -+ { - ERR("reconfigure software for Dynamic FIFOs\n"); - status = -ENODEV; - } -+ - } else { - if (!musb->config->dyn_fifo) - status = ep_config_from_hw(musb); -@@ -1477,8 +1551,8 @@ static int __init musb_core_init(u16 mus - - /*-------------------------------------------------------------------------*/ - --#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) -- -+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_UBICOM32) -+static u32_t musb_int_count = 0; - static irqreturn_t generic_interrupt(int irq, void *__hci) - { - unsigned long flags; -@@ -1487,10 +1561,17 @@ static irqreturn_t generic_interrupt(int - - spin_lock_irqsave(&musb->lock, flags); - -+#ifndef CONFIG_UBICOM32 - musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); - musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); - musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); -+#else -+ musb_read_int_status(&musb->int_usb, &musb->int_tx, &musb->int_rx); -+ //ubi32_usb_int_clr(); -+ musb_int_count++; -+#endif - -+ DBG(4, "usb %x, tx %x, rx %x", musb->int_usb, musb->int_tx, musb->int_rx); - if (musb->int_usb || musb->int_tx || musb->int_rx) - retval = musb_interrupt(musb); - -@@ -2222,6 +2303,10 @@ static struct platform_driver musb_drive - - static int __init musb_init(void) - { -+#ifdef CONFIG_UBICOM32 -+ ubi32_usb_init(); -+#endif -+ - #ifdef CONFIG_USB_MUSB_HDRC_HCD - if (usb_disabled()) - return 0; ---- a/drivers/usb/musb/musb_core.h -+++ b/drivers/usb/musb/musb_core.h -@@ -326,7 +326,9 @@ struct musb { - * queue until it completes or NAKs too much; then we try the next - * endpoint. - */ -- struct musb_hw_ep *bulk_ep; -+ //struct musb_hw_ep *bulk_ep; -+ struct musb_hw_ep *bulk_ep_in; //ubicom -+ struct musb_hw_ep *bulk_ep_out; - - struct list_head control; /* of musb_qh */ - struct list_head in_bulk; /* of musb_qh */ -@@ -467,7 +469,7 @@ extern void musb_platform_disable(struct - - extern void musb_hnp_stop(struct musb *musb); - --extern void musb_platform_set_mode(struct musb *musb, u8 musb_mode); -+extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode); - - #if defined(CONFIG_USB_TUSB6010) || \ - defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX) ---- a/drivers/usb/musb/musb_gadget.c -+++ b/drivers/usb/musb/musb_gadget.c -@@ -421,7 +421,7 @@ void musb_g_tx(struct musb *musb, u8 epn - * probably rates reporting as a host error - */ - if (csr & MUSB_TXCSR_P_SENTSTALL) { -- csr |= MUSB_TXCSR_P_WZC_BITS; -+ csr &= ~(MUSB_TXCSR_P_WZC_BITS); - csr &= ~MUSB_TXCSR_P_SENTSTALL; - musb_writew(epio, MUSB_TXCSR, csr); - if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) { -@@ -437,7 +437,7 @@ void musb_g_tx(struct musb *musb, u8 epn - - if (csr & MUSB_TXCSR_P_UNDERRUN) { - /* we NAKed, no big deal ... little reason to care */ -- csr |= MUSB_TXCSR_P_WZC_BITS; -+ csr &= ~(MUSB_TXCSR_P_WZC_BITS); - csr &= ~(MUSB_TXCSR_P_UNDERRUN - | MUSB_TXCSR_TXPKTRDY); - musb_writew(epio, MUSB_TXCSR, csr); -@@ -573,10 +573,16 @@ static void rxstate(struct musb *musb, s - u16 csr = 0; - const u8 epnum = req->epnum; - struct usb_request *request = &req->request; -- struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out; -+ struct musb_ep *musb_ep = NULL; - void __iomem *epio = musb->endpoints[epnum].regs; - u16 fifo_count = 0; -- u16 len = musb_ep->packet_sz; -+ u16 len = 0; -+ -+ if (musb->endpoints[epnum].is_shared_fifo) -+ musb_ep = &musb->endpoints[epnum].ep_in; -+ else -+ musb_ep = &musb->endpoints[epnum].ep_out; -+ len = musb_ep->packet_sz; - - csr = musb_readw(epio, MUSB_RXCSR); - -@@ -715,7 +721,7 @@ static void rxstate(struct musb *musb, s - */ - - /* ack the read! */ -- csr |= MUSB_RXCSR_P_WZC_BITS; -+ csr &= ~MUSB_RXCSR_P_WZC_BITS; - csr &= ~MUSB_RXCSR_RXPKTRDY; - musb_writew(epio, MUSB_RXCSR, csr); - } -@@ -734,10 +740,15 @@ void musb_g_rx(struct musb *musb, u8 epn - u16 csr; - struct usb_request *request; - void __iomem *mbase = musb->mregs; -- struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out; -+ struct musb_ep *musb_ep = NULL; - void __iomem *epio = musb->endpoints[epnum].regs; - struct dma_channel *dma; - -+ if (musb->endpoints[epnum].is_shared_fifo) -+ musb_ep = &musb->endpoints[epnum].ep_in; -+ else -+ musb_ep = &musb->endpoints[epnum].ep_out; -+ - musb_ep_select(mbase, epnum); - - request = next_request(musb_ep); -@@ -1559,7 +1570,7 @@ init_peripheral_ep(struct musb *musb, st - ep->is_in = is_in; - - INIT_LIST_HEAD(&ep->req_list); -- -+ - sprintf(ep->name, "ep%d%s", epnum, - (!epnum || hw_ep->is_shared_fifo) ? "" : ( - is_in ? "in" : "out")); -@@ -1758,7 +1769,9 @@ int usb_gadget_register_driver(struct us - } - } - } -- -+#ifndef CONFIG_USB_MUSB_OTG -+ musb_pullup(musb, 1); -+#endif - return retval; - } - EXPORT_SYMBOL(usb_gadget_register_driver); ---- a/drivers/usb/musb/musb_gadget_ep0.c -+++ b/drivers/usb/musb/musb_gadget_ep0.c -@@ -240,14 +240,14 @@ __acquires(musb->lock) - case USB_REQ_SET_ADDRESS: - /* change it after the status stage */ - musb->set_address = true; -- musb->address = (u8) (ctrlrequest->wValue & 0x7f); -+ musb->address = (u8) (le16_to_cpu(ctrlrequest->wValue) & 0x7f); - handled = 1; - break; - - case USB_REQ_CLEAR_FEATURE: - switch (recip) { - case USB_RECIP_DEVICE: -- if (ctrlrequest->wValue -+ if (le16_to_cpu(ctrlrequest->wValue) - != USB_DEVICE_REMOTE_WAKEUP) - break; - musb->may_wakeup = 0; -@@ -261,8 +261,8 @@ __acquires(musb->lock) - - if (num == 0 - || num >= MUSB_C_NUM_EPS -- || ctrlrequest->wValue -- != USB_ENDPOINT_HALT) -+ || le16_to_cpu(ctrlrequest->wValue -+ != USB_ENDPOINT_HALT)) - break; - - if (ctrlrequest->wIndex & USB_DIR_IN) -@@ -292,7 +292,7 @@ __acquires(musb->lock) - switch (recip) { - case USB_RECIP_DEVICE: - handled = 1; -- switch (ctrlrequest->wValue) { -+ switch (le16_to_cpu(ctrlrequest->wValue)) { - case USB_DEVICE_REMOTE_WAKEUP: - musb->may_wakeup = 1; - break; -@@ -374,8 +374,8 @@ stall: - - if (epnum == 0 - || epnum >= MUSB_C_NUM_EPS -- || ctrlrequest->wValue -- != USB_ENDPOINT_HALT) -+ || le16_to_cpu(ctrlrequest->wValue -+ != USB_ENDPOINT_HALT)) - break; - - ep = musb->endpoints + epnum; ---- a/drivers/usb/musb/musb_host.c -+++ b/drivers/usb/musb/musb_host.c -@@ -139,7 +139,11 @@ static inline void musb_h_tx_start(struc - /* NOTE: no locks here; caller should lock and select EP */ - if (ep->epnum) { - txcsr = musb_readw(ep->regs, MUSB_TXCSR); -- txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS; -+#ifndef CONFIG_UBICOM32 -+ txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS; -+#else -+ txcsr |= (MUSB_TXCSR_TXPKTRDY & (~MUSB_TXCSR_H_WZC_BITS)); -+#endif - musb_writew(ep->regs, MUSB_TXCSR, txcsr); - } else { - txcsr = MUSB_CSR0_H_SETUPPKT | MUSB_CSR0_TXPKTRDY; -@@ -198,8 +202,11 @@ musb_start_urb(struct musb *musb, int is - len = urb->iso_frame_desc[0].length; - break; - default: /* bulk, interrupt */ -- buf = urb->transfer_buffer; -- len = urb->transfer_buffer_length; -+ /* actual_length may be nonzero on retry paths */ -+ if (urb->actual_length) -+ DBG(3 ,"musb_start_urb: URB %p retried, len: %d\n", urb, urb->actual_length); -+ buf = urb->transfer_buffer + urb->actual_length; -+ len = urb->transfer_buffer_length - urb->actual_length; - } - - DBG(4, "qh %p urb %p dev%d ep%d%s%s, hw_ep %d, %p/%d\n", -@@ -318,13 +325,13 @@ musb_save_toggle(struct musb_hw_ep *ep, - if (!is_in) { - csr = musb_readw(epio, MUSB_TXCSR); - usb_settoggle(udev, qh->epnum, 1, -- (csr & MUSB_TXCSR_H_DATATOGGLE) -- ? 1 : 0); -+ ((csr & MUSB_TXCSR_H_DATATOGGLE) -+ ? 1 : 0)); - } else { - csr = musb_readw(epio, MUSB_RXCSR); - usb_settoggle(udev, qh->epnum, 0, -- (csr & MUSB_RXCSR_H_DATATOGGLE) -- ? 1 : 0); -+ ((csr & MUSB_RXCSR_H_DATATOGGLE) -+ ? 1 : 0)); - } - } - -@@ -337,9 +344,11 @@ musb_giveback(struct musb_qh *qh, struct - struct musb *musb = ep->musb; - int ready = qh->is_ready; - -+#ifndef CONFIG_UBICOM32 /* BUG! */ - if (ep->is_shared_fifo) - is_in = 1; - else -+#endif - is_in = usb_pipein(urb->pipe); - - /* save toggle eagerly, for paranoia */ -@@ -538,7 +547,11 @@ musb_host_packet_rx(struct musb *musb, s - musb_read_fifo(hw_ep, length, buf); - - csr = musb_readw(epio, MUSB_RXCSR); -+#ifndef CONFIG_UBICOM32 - csr |= MUSB_RXCSR_H_WZC_BITS; -+#else -+ csr &= ~MUSB_RXCSR_H_WZC_BITS; -+#endif - if (unlikely(do_flush)) - musb_h_flush_rxfifo(hw_ep, csr); - else { -@@ -572,14 +585,24 @@ musb_rx_reinit(struct musb *musb, struct - - /* if programmed for Tx, put it in RX mode */ - if (ep->is_shared_fifo) { -+#ifndef CONFIG_UBICOM32 - csr = musb_readw(ep->regs, MUSB_TXCSR); - if (csr & MUSB_TXCSR_MODE) { - musb_h_tx_flush_fifo(ep); - musb_writew(ep->regs, MUSB_TXCSR, - MUSB_TXCSR_FRCDATATOG); - } -+#else - /* clear mode (and everything else) to enable Rx */ - musb_writew(ep->regs, MUSB_TXCSR, 0); -+ /* scrub all previous state, clearing toggle */ -+ csr = musb_readw(ep->regs, MUSB_RXCSR); -+ if (csr & MUSB_RXCSR_RXPKTRDY) -+ WARNING("rx%d, packet/%d ready?\n", ep->epnum, -+ musb_readw(ep->regs, MUSB_RXCOUNT)); -+ -+ musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG); -+#endif - - /* scrub all previous state, clearing toggle */ - } else { -@@ -680,7 +703,7 @@ static void musb_ep_program(struct musb - /* ASSERT: TXCSR_DMAENAB was already cleared */ - - /* flush all old state, set default */ -- musb_h_tx_flush_fifo(hw_ep); -+ musb_h_tx_flush_fifo(hw_ep); - csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT - | MUSB_TXCSR_DMAMODE - | MUSB_TXCSR_FRCDATATOG -@@ -1169,8 +1192,18 @@ void musb_host_tx(struct musb *musb, u8 - void __iomem *mbase = musb->mregs; - struct dma_channel *dma; - -+#ifdef CONFIG_UBICOM32 -+ if (hw_ep->is_shared_fifo) { -+ qh = hw_ep->in_qh; -+ } -+#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS -+ printk(KERN_DEBUG "OUT/TX%d end, csr %04x%s\n", epnum, tx_csr, -+ dma ? ", dma" : ""); -+#endif -+#endif - urb = next_urb(qh); - -+ - musb_ep_select(mbase, epnum); - tx_csr = musb_readw(epio, MUSB_TXCSR); - -@@ -1210,9 +1243,14 @@ void musb_host_tx(struct musb *musb, u8 - * we have a candidate... NAKing is *NOT* an error - */ - musb_ep_select(mbase, epnum); -+#ifndef CONFIG_UBICOM32 - musb_writew(epio, MUSB_TXCSR, - MUSB_TXCSR_H_WZC_BITS - | MUSB_TXCSR_TXPKTRDY); -+#else -+ musb_writew(epio, MUSB_TXCSR, -+ MUSB_TXCSR_TXPKTRDY); -+#endif - goto finish; - } - -@@ -1316,8 +1354,14 @@ void musb_host_tx(struct musb *musb, u8 - qh->segsize = wLength; - - musb_ep_select(mbase, epnum); -+#ifndef CONFIG_UBICOM32 - musb_writew(epio, MUSB_TXCSR, -- MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY); -+ MUSB_TXCSR_MODE | MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY); -+#else -+ musb_writew(epio, MUSB_TXCSR, -+ MUSB_TXCSR_MODE | MUSB_TXCSR_TXPKTRDY); -+#endif -+ - } else - DBG(1, "not complete, but dma enabled?\n"); - -@@ -1365,6 +1409,49 @@ finish: - - #endif - -+/* Schedule next QH from musb->in_bulk and move the current qh to -+ * the end; avoids starvation for other endpoints. -+ */ -+static void musb_bulk_rx_nak_timeout(struct musb *musb, struct musb_hw_ep *ep) -+{ -+ struct dma_channel *dma; -+ struct urb *urb; -+ void __iomem *mbase = musb->mregs; -+ void __iomem *epio = ep->regs; -+ struct musb_qh *cur_qh, *next_qh; -+ u16 rx_csr; -+ -+ musb_ep_select(mbase, ep->epnum); -+ dma = is_dma_capable() ? ep->rx_channel : NULL; -+ /* clear nak timeout bit */ -+ rx_csr = musb_readw(epio, MUSB_RXCSR); -+ rx_csr &= ~MUSB_RXCSR_H_WZC_BITS; -+ rx_csr &= ~MUSB_RXCSR_DATAERROR; -+ musb_writew(epio, MUSB_RXCSR, rx_csr); -+ -+ cur_qh = first_qh(&musb->in_bulk); -+ if (cur_qh) { -+ urb = next_urb(cur_qh); -+ if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) { -+ dma->status = MUSB_DMA_STATUS_CORE_ABORT; -+ musb->dma_controller->channel_abort(dma); -+ urb->actual_length += dma->actual_len; -+ dma->actual_len = 0L; -+ } -+ musb_save_toggle(ep, 1, urb); -+ -+ /* move cur_qh to end of queue */ -+ list_move_tail(&cur_qh->ring, &musb->in_bulk); -+ -+ /* get the next qh from musb->in_bulk */ -+ next_qh = first_qh(&musb->in_bulk); -+ -+ /* set rx_reinit and schedule the next qh */ -+ ep->rx_reinit = 1; -+ musb_start_urb(musb, 1, next_qh); -+ } -+} -+ - /* - * Service an RX interrupt for the given IN endpoint; docs cover bulk, iso, - * and high-bandwidth IN transfer cases. -@@ -1383,7 +1470,7 @@ void musb_host_rx(struct musb *musb, u8 - bool done = false; - u32 status; - struct dma_channel *dma; -- -+ - musb_ep_select(mbase, epnum); - - urb = next_urb(qh); -@@ -1407,6 +1494,13 @@ void musb_host_rx(struct musb *musb, u8 - - pipe = urb->pipe; - -+#ifdef CONFIG_UBICOM32 -+#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS -+ printk(KERN_DEBUG "RXCSR%d %04x, reqpkt, len %zu%s\n", epnum, rx_csr, -+ xfer_len, dma ? ", dma" : ""); -+#endif -+#endif -+ - DBG(5, "<== hw %d rxcsr %04x, urb actual %d (+dma %zu)\n", - epnum, rx_csr, urb->actual_length, - dma ? dma->actual_len : 0); -@@ -1428,18 +1522,30 @@ void musb_host_rx(struct musb *musb, u8 - } else if (rx_csr & MUSB_RXCSR_DATAERROR) { - - if (USB_ENDPOINT_XFER_ISOC != qh->type) { -- /* NOTE this code path would be a good place to PAUSE a -- * transfer, if there's some other (nonperiodic) rx urb -- * that could use this fifo. (dma complicates it...) -+ DBG(6, "RX end %d NAK timeout\n", epnum); -+ -+ /* NOTE: NAKing is *NOT* an error, so we want to -+ * continue. Except ... if there's a request for -+ * another QH, use that instead of starving it. - * -- * if (bulk && qh->ring.next != &musb->in_bulk), then -- * we have a candidate... NAKing is *NOT* an error -+ * Devices like Ethernet and serial adapters keep -+ * reads posted at all times, which will starve -+ * other devices without this logic. - */ -- DBG(6, "RX end %d NAK timeout\n", epnum); -+ if (usb_pipebulk(urb->pipe) -+ && qh->mux == 1 -+ && !list_is_singular(&musb->in_bulk)) { -+ musb_bulk_rx_nak_timeout(musb, hw_ep); -+ return; -+ } - musb_ep_select(mbase, epnum); -+#ifndef CONFIG_UBICOM32 - musb_writew(epio, MUSB_RXCSR, - MUSB_RXCSR_H_WZC_BITS - | MUSB_RXCSR_H_REQPKT); -+#else -+ musb_writew(epio, MUSB_RXCSR, (~(MUSB_RXCSR_H_WZC_BITS))| MUSB_RXCSR_H_REQPKT); -+#endif - - goto finish; - } else { -@@ -1495,8 +1601,13 @@ void musb_host_rx(struct musb *musb, u8 - rx_csr &= ~MUSB_RXCSR_H_REQPKT; - - musb_ep_select(mbase, epnum); -+#ifndef CONFIG_UBICOM32 - musb_writew(epio, MUSB_RXCSR, - MUSB_RXCSR_H_WZC_BITS | rx_csr); -+#else -+ musb_writew(epio, MUSB_RXCSR, -+ (~MUSB_RXCSR_H_WZC_BITS) & rx_csr); -+#endif - } - #endif - if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) { -@@ -1526,7 +1637,7 @@ void musb_host_rx(struct musb *musb, u8 - else - done = false; - -- } else { -+ } else { - /* done if urb buffer is full or short packet is recd */ - done = (urb->actual_length + xfer_len >= - urb->transfer_buffer_length -@@ -1743,8 +1854,12 @@ static int musb_schedule( - if (musb->periodic[epnum]) - continue; - hw_ep = &musb->endpoints[epnum]; -+#ifndef CONFIG_UBICOM32 - if (hw_ep == musb->bulk_ep) -- continue; -+#else -+ if ((hw_ep == musb->bulk_ep_in) || (hw_ep == musb->bulk_ep_out)) /* Ubicom */ -+#endif -+ continue; - - if (is_in) - diff = hw_ep->max_packet_sz_rx - qh->maxpacket; -@@ -1756,7 +1871,14 @@ static int musb_schedule( - best_end = epnum; - } - } -+ -+#ifdef CONFIG_UBICOM32 -+ if (((best_diff >= qh->maxpacket)) && ((qh->type == USB_ENDPOINT_XFER_BULK) && (!is_in))) -+ best_end = -1; -+#endif -+ - /* use bulk reserved ep1 if no other ep is free */ -+#ifndef CONFIG_UBICOM32 - if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) { - hw_ep = musb->bulk_ep; - if (is_in) -@@ -1767,6 +1889,22 @@ static int musb_schedule( - } else if (best_end < 0) { - return -ENOSPC; - } -+#else -+ if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) { -+ /* hw_ep = musb->bulk_ep; */ -+ if (is_in) { -+ head = &musb->in_bulk; -+ hw_ep = musb->bulk_ep_in; /* UBICOM */ -+ } -+ else { -+ head = &musb->out_bulk; -+ hw_ep = musb->bulk_ep_out; /* UBICOM */ -+ } -+ goto success; -+ } else if (best_end < 0) { -+ return -ENOSPC; -+ } -+#endif - - idle = 1; - qh->mux = 0; -@@ -1779,6 +1917,13 @@ success: - list_add_tail(&qh->ring, head); - qh->mux = 1; - } -+ /* -+ * It's not make sense to set NAK timeout when qh->mux = 0, -+ * There is nothing else to schedule -+ */ -+ if ((qh->type == USB_ENDPOINT_XFER_BULK) && (qh->mux == 0)) -+ qh->intv_reg = 0; -+ - qh->hw_ep = hw_ep; - qh->hep->hcpriv = qh; - if (idle) -@@ -1884,6 +2029,15 @@ static int musb_urb_enqueue( - case USB_ENDPOINT_XFER_ISOC: - /* iso always uses log encoding */ - break; -+#ifdef COMFIG_UBICOM32 -+ case USB_ENDPOINT_XFER_BULK: -+ if (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) -+ interval = (USB_SPEED_HIGH == urb->dev->speed) ? 16: 2; -+ else -+ interval = 0; -+ break; -+#endif -+ - default: - /* REVISIT we actually want to use NAK limits, hinting to the - * transfer scheduling logic to try some other qh, e.g. try ---- a/drivers/usb/musb/musb_io.h -+++ b/drivers/usb/musb/musb_io.h -@@ -56,6 +56,7 @@ static inline void writesb(const void __ - - #endif - -+#ifndef CONFIG_UBICOM32 - /* NOTE: these offsets are all in bytes */ - - static inline u16 musb_readw(const void __iomem *addr, unsigned offset) -@@ -70,7 +71,37 @@ static inline void musb_writew(void __io - - static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data) - { __raw_writel(data, addr + offset); } -+#else -+#include <asm/ubicom32-tio.h> -+static inline u16 musb_readw(const void __iomem *addr, unsigned offset) -+{ -+ u16 data; -+ usb_tio_read_u16((u32)(addr + offset), &data); -+ return data; -+} - -+static inline u8 musb_readb(const void __iomem *addr, unsigned offset) -+{ -+ u8 data; -+ usb_tio_read_u8((u32)(addr + offset), &data); -+ return data; -+} -+ -+static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data) -+{ -+ usb_tio_write_u16((u32)(addr + offset), data); -+} -+ -+static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) -+{ -+ usb_tio_write_u8((u32)(addr + offset), data); -+} -+ -+static inline void musb_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx) -+{ -+ return usb_tio_read_int_status(int_usb, int_tx, int_rx); -+} -+#endif /* CONFIG_UBICOM32 */ - - #ifdef CONFIG_USB_TUSB6010 - -@@ -104,7 +135,7 @@ static inline void musb_writeb(void __io - __raw_writew(tmp, addr + (offset & ~1)); - } - --#else -+#elif !defined(CONFIG_UBICOM32) - - static inline u8 musb_readb(const void __iomem *addr, unsigned offset) - { return __raw_readb(addr + offset); } ---- /dev/null -+++ b/drivers/usb/musb/ubi32_usb.c -@@ -0,0 +1,156 @@ -+/* -+ * drivers/usb/musb/ubi32_usb.c -+ * Ubicom32 usb controller driver. -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * Copyright (C) 2005-2006 by Texas Instruments -+ * -+ * Derived from the Texas Instruments Inventra Controller Driver for Linux. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/slab.h> -+#include <linux/init.h> -+#include <linux/list.h> -+#include <linux/clk.h> -+#include <linux/io.h> -+ -+#include <asm/io.h> -+#include <asm/ip5000.h> -+#include "musb_core.h" -+ -+void musb_platform_enable(struct musb *musb) -+{ -+} -+void musb_platform_disable(struct musb *musb) -+{ -+} -+ -+int musb_platform_set_mode(struct musb *musb, u8 musb_mode) { -+ return 0; -+} -+ -+static void ip5k_usb_hcd_vbus_power(struct musb *musb, int is_on, int sleeping) -+{ -+} -+ -+static void ip5k_usb_hcd_set_vbus(struct musb *musb, int is_on) -+{ -+ u8 devctl; -+ /* HDRC controls CPEN, but beware current surges during device -+ * connect. They can trigger transient overcurrent conditions -+ * that must be ignored. -+ */ -+ -+ devctl = musb_readb(musb->mregs, MUSB_DEVCTL); -+ -+ if (is_on) { -+ musb->is_active = 1; -+ musb->xceiv.default_a = 1; -+ musb->xceiv.state = OTG_STATE_A_WAIT_VRISE; -+ devctl |= MUSB_DEVCTL_SESSION; -+ -+ MUSB_HST_MODE(musb); -+ } else { -+ musb->is_active = 0; -+ -+ /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and -+ * jumping right to B_IDLE... -+ */ -+ -+ musb->xceiv.default_a = 0; -+ musb->xceiv.state = OTG_STATE_B_IDLE; -+ devctl &= ~MUSB_DEVCTL_SESSION; -+ -+ MUSB_DEV_MODE(musb); -+ } -+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); -+ -+ DBG(1, "VBUS %s, devctl %02x " -+ /* otg %3x conf %08x prcm %08x */ "\n", -+ otg_state_string(musb), -+ musb_readb(musb->mregs, MUSB_DEVCTL)); -+} -+static int ip5k_usb_hcd_set_power(struct otg_transceiver *x, unsigned mA) -+{ -+ return 0; -+} -+ -+static int musb_platform_resume(struct musb *musb); -+ -+int __init musb_platform_init(struct musb *musb) -+{ -+ -+#ifdef CONFIG_UBICOM32_V4 -+ u32_t chip_id; -+ asm volatile ( -+ "move.4 %0, CHIP_ID \n\t" -+ : "=r" (chip_id) -+ ); -+ if (chip_id == 0x30001) { -+ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 30); -+ udelay(1); -+ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 31); -+ } else { -+ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 17); -+ udelay(1); -+ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 14); -+ } -+#endif -+ -+ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_CFG)) |= ((1 << 14) | (1 <<15)); -+ -+ /* The i-clk is AUTO gated. Hence there is no need -+ * to disable it until the driver is shutdown */ -+ -+ clk_enable(musb->clock); -+ musb_platform_resume(musb); -+ -+ ip5k_usb_hcd_vbus_power(musb, musb->board_mode == MUSB_HOST, 1); -+ -+ if (is_host_enabled(musb)) -+ musb->board_set_vbus = ip5k_usb_hcd_set_vbus; -+ if (is_peripheral_enabled(musb)) -+ musb->xceiv.set_power = ip5k_usb_hcd_set_power; -+ -+ return 0; -+} -+ -+ -+int musb_platform_suspend(struct musb *musb) -+{ -+ return 0; -+} -+int musb_platform_resume(struct musb *musb) -+{ -+ return 0; -+} -+ -+int musb_platform_exit(struct musb *musb) -+{ -+ ip5k_usb_hcd_vbus_power(musb, 0 /*off*/, 1); -+ musb_platform_suspend(musb); -+ return 0; -+} ---- a/drivers/video/backlight/Kconfig -+++ b/drivers/video/backlight/Kconfig -@@ -84,6 +84,14 @@ config LCD_TOSA - If you have an Sharp SL-6000 Zaurus say Y to enable a driver - for its LCD. - -+config LCD_UBICOM32 -+ tristate "Ubicom Backlight Driver" -+ depends on LCD_CLASS_DEVICE && UBICOM32 -+ default n -+ help -+ If you have a Ubicom32 based system with an LCD panel, say Y to enable -+ the power control driver for it. -+ - # - # Backlight - # -@@ -214,3 +222,11 @@ config BACKLIGHT_SAHARA - help - If you have a Tabletkiosk Sahara Touch-iT, say y to enable the - backlight driver. -+ -+config BACKLIGHT_UBICOM32 -+ tristate "Ubicom Backlight Driver" -+ depends on BACKLIGHT_CLASS_DEVICE && UBICOM32 -+ default n -+ help -+ If you have a Ubicom32 based system with a backlight say Y to enable the -+ backlight driver. ---- a/drivers/video/backlight/Makefile -+++ b/drivers/video/backlight/Makefile -@@ -8,6 +8,8 @@ obj-$(CONFIG_LCD_PLATFORM) += platfor - obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o - obj-$(CONFIG_LCD_TDO24M) += tdo24m.o - obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o -+obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o -+obj-$(CONFIG_LCD_UBICOM32) += ubicom32lcd.o - - obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o - obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o -@@ -22,4 +24,4 @@ obj-$(CONFIG_BACKLIGHT_DA903X) += da903x - obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o - obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o - obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o -- -+obj-$(CONFIG_BACKLIGHT_UBICOM32) += ubicom32bl.o ---- /dev/null -+++ b/drivers/video/backlight/ubicom32bl.c -@@ -0,0 +1,378 @@ -+/* -+ * drivers/video/backlight/ubicom32bl.c -+ * Backlight driver for the Ubicom32 platform -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/init.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/backlight.h> -+#include <linux/fb.h> -+ -+#include <asm/ubicom32bl.h> -+#include <asm/ip5000.h> -+ -+#define DRIVER_NAME "ubicom32bl" -+#define UBICOM32BL_MAX_BRIGHTNESS 255 -+ -+struct ubicom32bl_data { -+ /* -+ * Pointer to the platform data structure. Keep this around since we need values -+ * from it to set the backlight intensity. -+ */ -+ const struct ubicom32bl_platform_data *pdata; -+ -+ /* -+ * Backlight device, we have to save this for use when we remove ourselves. -+ */ -+ struct backlight_device *bldev; -+ -+ /* -+ * Current intensity, used for get_intensity. -+ */ -+ int cur_intensity; -+ -+ /* -+ * Init function for PWM -+ */ -+ int (*init_fn)(struct ubicom32bl_data *); -+ -+ /* -+ * Set intensity function depending on the backlight type -+ */ -+ int (*set_intensity_fn)(struct ubicom32bl_data *, int); -+}; -+ -+/* -+ * ubicom32bl_set_intensity_gpio -+ */ -+static int ubicom32bl_set_intensity_gpio(struct ubicom32bl_data *ud, int intensity) -+{ -+ ud->cur_intensity = intensity ? 255 : 0; -+ -+ if (intensity) { -+ // set gpio -+ return 0; -+ } -+ -+ // clear gpio -+ return 0; -+} -+ -+/* -+ * ubicom32bl_set_intensity_hw -+ */ -+static int ubicom32bl_set_intensity_hw(struct ubicom32bl_data *ud, int intensity) -+{ -+ u16_t period = ud->pdata->pwm_period; -+ u16_t duty; -+ -+ /* -+ * Calculate the new duty cycle -+ */ -+ duty = (period * intensity) / (UBICOM32BL_MAX_BRIGHTNESS + 1); -+ -+ /* -+ * Set the new duty cycle -+ */ -+ switch (ud->pdata->pwm_channel) { -+ case 0: -+ /* -+ * Channel 0 is in the lower half of PORT C ctl0 and ctl1 -+ */ -+ UBICOM32_IO_PORT(RC)->ctl1 = (ud->pdata->pwm_period << 16) | duty; -+ break; -+ -+ case 1: -+ /* -+ * Channel 1 is in the upper half of PORT C ctl0 and ctl2 -+ */ -+ UBICOM32_IO_PORT(RC)->ctl2 = (ud->pdata->pwm_period << 16) | duty; -+ break; -+ -+ case 2: -+ /* -+ * Channel 2 is in PORT H ctl0 and ctl1 -+ */ -+ UBICOM32_IO_PORT(RH)->ctl1 = (ud->pdata->pwm_period << 16) | duty; -+ break; -+ } -+ -+ ud->cur_intensity = intensity; -+ -+ return 0; -+} -+ -+/* -+ * ubicom32bl_set_intensity -+ */ -+static int ubicom32bl_set_intensity(struct backlight_device *bd) -+{ -+ struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd); -+ int intensity = bd->props.brightness; -+ -+ /* -+ * If we're blanked the the intensity doesn't matter. -+ */ -+ if ((bd->props.power != FB_BLANK_UNBLANK) || (bd->props.fb_blank != FB_BLANK_UNBLANK)) { -+ intensity = 0; -+ } -+ -+ /* -+ * Check for inverted backlight. -+ */ -+ if (ud->pdata->invert) { -+ intensity = UBICOM32BL_MAX_BRIGHTNESS - intensity; -+ } -+ -+ if (ud->set_intensity_fn) { -+ return ud->set_intensity_fn(ud, intensity); -+ } -+ -+ return -ENXIO; -+} -+ -+/* -+ * ubicom32bl_get_intensity -+ * Return the current intensity of the backlight. -+ */ -+static int ubicom32bl_get_intensity(struct backlight_device *bd) -+{ -+ struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd); -+ -+ return ud->cur_intensity; -+} -+ -+/* -+ * ubicom32bl_init_hw_pwm -+ * Set the appropriate PWM registers -+ */ -+static int ubicom32bl_init_hw_pwm(struct ubicom32bl_data *ud) -+{ -+ /* -+ * bit 13: enable -+ */ -+ u16_t pwm_cfg = (1 << 13) | (ud->pdata->pwm_prescale << 8) ; -+ -+ switch (ud->pdata->pwm_channel) { -+ case 0: -+ /* -+ * Channel 0 is in the lower half of PORT C ctl0 and ctl1 -+ */ -+ UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF; -+ UBICOM32_IO_PORT(RC)->ctl0 |= pwm_cfg; -+ UBICOM32_IO_PORT(RC)->ctl1 = ud->pdata->pwm_period << 16; -+ break; -+ -+ case 1: -+ /* -+ * Channel 1 is in the upper half of PORT C ctl0 and ctl2 -+ */ -+ UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF0000; -+ UBICOM32_IO_PORT(RC)->ctl0 |= (pwm_cfg << 16); -+ UBICOM32_IO_PORT(RC)->ctl2 = ud->pdata->pwm_period << 16; -+ break; -+ -+ case 2: -+ /* -+ * Channel 2 is in PORT H ctl0 and ctl1 -+ */ -+ UBICOM32_IO_PORT(RH)->ctl0 &= ~0xFFFF0000; -+ UBICOM32_IO_PORT(RH)->ctl0 = pwm_cfg; -+ UBICOM32_IO_PORT(RH)->ctl1 = ud->pdata->pwm_period << 16; -+ break; -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubicom32bl_init_gpio -+ * Allocate the appropriate GPIO -+ */ -+static int ubicom32bl_init_gpio(struct ubicom32bl_data *ud) -+{ -+ return 0; -+} -+ -+static struct backlight_ops ubicom32bl_ops = { -+ .get_brightness = ubicom32bl_get_intensity, -+ .update_status = ubicom32bl_set_intensity, -+}; -+ -+/* -+ * ubicom32bl_probe -+ */ -+static int ubicom32bl_probe(struct platform_device *pdev) -+{ -+ const struct ubicom32bl_platform_data *pdata = pdev->dev.platform_data; -+ struct ubicom32bl_data *ud; -+ struct backlight_device *bldev; -+ int retval; -+ -+ /* -+ * Check to see if we have any platform data, if we don't then the backlight is not -+ * configured on this device. -+ */ -+ if (!pdata) { -+ return -ENODEV; -+ } -+ -+ /* -+ * Allocate our private data -+ */ -+ ud = kzalloc(sizeof(struct ubicom32bl_data), GFP_KERNEL); -+ if (!ud) { -+ return -ENOMEM; -+ } -+ -+ ud->pdata = pdata; -+ -+ /* -+ * Check to see that the platform data is valid for this driver -+ */ -+ switch (pdata->type) { -+ case UBICOM32BL_TYPE_PWM: -+ { -+ /* -+ * Make sure we have a PWM peripheral -+ */ -+ u32_t chipid; -+ asm volatile ( -+ "move.4 %0, CHIP_ID \n\t" -+ : "=r" (chipid) -+ ); -+ if (chipid != 0x00030001) { -+ retval = -ENODEV; -+ goto fail; -+ } -+ -+ if (pdata->pwm_channel > 3) { -+ retval = -ENODEV; -+ goto fail; -+ } -+ if (pdata->pwm_prescale > 16) { -+ retval = -EINVAL; -+ goto fail; -+ } -+ -+ ud->init_fn = ubicom32bl_init_hw_pwm; -+ ud->set_intensity_fn = ubicom32bl_set_intensity_hw; -+ break; -+ } -+ -+ case UBICOM32BL_TYPE_PWM_HRT: -+ // For now, PWM HRT devices are treated as binary lights. -+ -+ case UBICOM32BL_TYPE_BINARY: -+ ud->init_fn = ubicom32bl_init_gpio; -+ ud->set_intensity_fn = ubicom32bl_set_intensity_gpio; -+ break; -+ } -+ -+ /* -+ * Register our backlight device -+ */ -+ bldev = backlight_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32bl_ops); -+ if (IS_ERR(bldev)) { -+ retval = PTR_ERR(bldev); -+ goto fail; -+ } -+ -+ ud->bldev = bldev; -+ ud->cur_intensity = pdata->default_intensity; -+ platform_set_drvdata(pdev, ud); -+ -+ /* -+ * Start up the backlight at the prescribed default intensity -+ */ -+ bldev->props.power = FB_BLANK_UNBLANK; -+ bldev->props.max_brightness = UBICOM32BL_MAX_BRIGHTNESS; -+ bldev->props.brightness = pdata->default_intensity; -+ -+ if (ud->init_fn) { -+ if (ud->init_fn(ud) != 0) { -+ retval = -ENODEV; -+ backlight_device_unregister(ud->bldev); -+ goto fail; -+ } -+ } -+ ubicom32bl_set_intensity(bldev); -+ -+ printk(KERN_INFO DRIVER_NAME ": Backlight driver started\n"); -+ -+ return 0; -+ -+fail: -+ platform_set_drvdata(pdev, NULL); -+ kfree(ud); -+ return retval; -+} -+ -+/* -+ * ubicom32bl_remove -+ */ -+static int __exit ubicom32bl_remove(struct platform_device *pdev) -+{ -+ struct ubicom32bl_data *ud = platform_get_drvdata(pdev); -+ -+ backlight_device_unregister(ud->bldev); -+ platform_set_drvdata(pdev, NULL); -+ kfree(ud); -+ -+ return 0; -+} -+ -+static struct platform_driver ubicom32bl_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ -+ .remove = __exit_p(ubicom32bl_remove), -+}; -+ -+/* -+ * ubicom32bl_init -+ */ -+static int __init ubicom32bl_init(void) -+{ -+ return platform_driver_probe(&ubicom32bl_driver, ubicom32bl_probe); -+} -+module_init(ubicom32bl_init); -+ -+/* -+ * ubicom32bl_exit -+ */ -+static void __exit ubicom32bl_exit(void) -+{ -+ platform_driver_unregister(&ubicom32bl_driver); -+} -+module_exit(ubicom32bl_exit); -+ -+MODULE_AUTHOR("Patrick Tjin <@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom32 backlight driver"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/drivers/video/backlight/ubicom32lcd.c -@@ -0,0 +1,194 @@ -+/* -+ * drivers/vdeio/backlight/ubicom32lcd.c -+ * LCD driver for the Ubicom32 platform -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/init.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/lcd.h> -+#include <linux/fb.h> -+#include <linux/gpio.h> -+ -+#include <asm/ubicom32lcd.h> -+#include <asm/ip5000.h> -+ -+#define DRIVER_NAME "ubicom32lcd" -+ -+struct ubicom32lcd_data { -+ /* -+ * Pointer to the platform data structure. Keep this around since we need values -+ * from it to set the backlight intensity. -+ */ -+ const struct ubicom32lcd_platform_data *pdata; -+ -+ /* -+ * LCD device, we have to save this for use when we remove ourselves. -+ */ -+ struct lcd_device *lcddev; -+}; -+ -+/* -+ * ubicom32lcd_set_power -+ */ -+static int ubicom32lcd_set_power(struct lcd_device *ld, int power) -+{ -+ struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld); -+ if (power == FB_BLANK_UNBLANK) { -+ gpio_direction_output(ud->pdata->vgh_gpio, ud->pdata->vgh_polarity); -+ return 0; -+ } -+ -+ gpio_direction_output(ud->pdata->vgh_gpio, !ud->pdata->vgh_polarity); -+ return 0; -+} -+ -+/* -+ * ubicom32lcd_get_power -+ */ -+static int ubicom32lcd_get_power(struct lcd_device *ld) -+{ -+ struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld); -+ int vgh = gpio_get_value(ud->pdata->vgh_gpio); -+ if ((vgh && ud->pdata->vgh_polarity) || (!vgh && !ud->pdata->vgh_polarity)) { -+ return 1; -+ } -+ -+ return 0; -+} -+ -+static struct lcd_ops ubicom32lcd_ops = { -+ .get_power = ubicom32lcd_get_power, -+ .set_power = ubicom32lcd_set_power, -+}; -+ -+/* -+ * ubicom32lcd_probe -+ */ -+static int ubicom32lcd_probe(struct platform_device *pdev) -+{ -+ const struct ubicom32lcd_platform_data *pdata = pdev->dev.platform_data; -+ struct ubicom32lcd_data *ud; -+ struct lcd_device *lcddev; -+ int retval; -+ -+ /* -+ * Check to see if we have any platform data, if we don't have a LCD to control -+ */ -+ if (!pdata) { -+ return -ENODEV; -+ } -+ -+ /* -+ * Allocate our private data -+ */ -+ ud = kzalloc(sizeof(struct ubicom32lcd_data), GFP_KERNEL); -+ if (!ud) { -+ return -ENOMEM; -+ } -+ -+ ud->pdata = pdata; -+ -+ /* -+ * Request our GPIOs -+ */ -+ retval = gpio_request(pdata->vgh_gpio, "vgh"); -+ if (retval) { -+ dev_err(&pdev->dev, "Failed to allocate vgh GPIO\n"); -+ goto fail_gpio; -+ } -+ -+ /* -+ * Register our lcd device -+ */ -+ lcddev = lcd_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32lcd_ops); -+ if (IS_ERR(lcddev)) { -+ retval = PTR_ERR(lcddev); -+ goto fail; -+ } -+ -+ ud->lcddev = lcddev; -+ platform_set_drvdata(pdev, ud); -+ -+ ubicom32lcd_set_power(lcddev, FB_BLANK_UNBLANK); -+ -+ printk(KERN_INFO DRIVER_NAME ": LCD driver started\n"); -+ -+ return 0; -+ -+fail: -+ gpio_free(pdata->vgh_gpio); -+ -+fail_gpio: -+ platform_set_drvdata(pdev, NULL); -+ kfree(ud); -+ return retval; -+} -+ -+/* -+ * ubicom32lcd_remove -+ */ -+static int __exit ubicom32lcd_remove(struct platform_device *pdev) -+{ -+ struct ubicom32lcd_data *ud = platform_get_drvdata(pdev); -+ -+ lcd_device_unregister(ud->lcddev); -+ platform_set_drvdata(pdev, NULL); -+ kfree(ud); -+ -+ return 0; -+} -+ -+static struct platform_driver ubicom32lcd_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ -+ .remove = __exit_p(ubicom32lcd_remove), -+}; -+ -+/* -+ * ubicom32lcd_init -+ */ -+static int __init ubicom32lcd_init(void) -+{ -+ return platform_driver_probe(&ubicom32lcd_driver, ubicom32lcd_probe); -+} -+module_init(ubicom32lcd_init); -+ -+/* -+ * ubicom32lcd_exit -+ */ -+static void __exit ubicom32lcd_exit(void) -+{ -+ platform_driver_unregister(&ubicom32lcd_driver); -+} -+module_exit(ubicom32lcd_exit); -+ -+MODULE_AUTHOR("Patrick Tjin <@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom32 backlight driver"); -+MODULE_LICENSE("GPL"); ---- a/drivers/video/Kconfig -+++ b/drivers/video/Kconfig -@@ -609,6 +609,25 @@ config FB_BFIN_T350MCQB - This display is a QVGA 320x240 24-bit RGB display interfaced by an 8-bit wide PPI - It uses PPI[0..7] PPI_FS1, PPI_FS2 and PPI_CLK. - -+config FB_UBICOM32 -+ tristate "Ubicom32 Frame Buffer driver" -+ depends on FB && UBICOM32 -+ select FB_CFB_FILLRECT -+ select FB_CFB_COPYAREA -+ select FB_CFB_IMAGEBLIT -+ select FONT_6x11 if FRAMEBUFFER_CONSOLE -+ help -+ This is the framebuffer device driver for the Ubicom32 architecture. -+ -+config FB_UBICOM32_VIRTUAL -+ tristate "Ubicom32 Virtual Frame Buffer driver" -+ depends on FB && UBICOM32 -+ select FB_CFB_FILLRECT -+ select FB_CFB_COPYAREA -+ select FB_CFB_IMAGEBLIT -+ select FONT_6x11 if FRAMEBUFFER_CONSOLE -+ help -+ This is a virtual framebuffer device driver for the Ubicom32 architecture. - - config FB_STI - tristate "HP STI frame buffer device support" ---- a/drivers/video/Makefile -+++ b/drivers/video/Makefile -@@ -132,6 +132,7 @@ obj-$(CONFIG_FB_VGA16) += vga - obj-$(CONFIG_FB_OF) += offb.o - obj-$(CONFIG_FB_BF54X_LQ043) += bf54x-lq043fb.o - obj-$(CONFIG_FB_BFIN_T350MCQB) += bfin-t350mcqb-fb.o -+obj-$(CONFIG_FB_UBICOM32) += ubicom32fb.o - - # the test framebuffer is last - obj-$(CONFIG_FB_VIRTUAL) += vfb.o ---- /dev/null -+++ b/drivers/video/ubicom32fb.c -@@ -0,0 +1,777 @@ -+/* -+ * drivers/video/ubicom32fb.c -+ * Ubicom32 frame buffer driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+/* -+ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by -+ * Geert Uytterhoeven. -+ */ -+ -+#include <linux/device.h> -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/version.h> -+#include <linux/errno.h> -+#include <linux/string.h> -+#include <linux/mm.h> -+#include <linux/fb.h> -+#include <linux/init.h> -+#include <linux/dma-mapping.h> -+#include <linux/platform_device.h> -+#include <linux/device.h> -+#include <linux/uaccess.h> -+#include <linux/interrupt.h> -+ -+#include <asm/io.h> -+#include <asm/ip5000.h> -+#include <asm/vdc_tio.h> -+#include <asm/ubicom32fb.h> -+ -+#define DRIVER_NAME "ubicom32fb" -+#define DRIVER_DESCRIPTION "Ubicom32 frame buffer driver" -+ -+#define PALETTE_ENTRIES_NO 16 -+ -+/* -+ * Option variables -+ * -+ * vram_size: VRAM size in kilobytes, subject to alignment -+ */ -+static int vram_size = 0; -+module_param(vram_size, int, 0); -+MODULE_PARM_DESC(vram, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment"); -+static int init_value = 0; -+module_param(init_value, int, 0); -+MODULE_PARM_DESC(init, "Initial value of the framebuffer (16-bit number)."); -+ -+/* -+ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in. -+ */ -+static struct fb_fix_screeninfo ubicom32fb_fix = { -+ .id = "Ubicom32", -+ .type = FB_TYPE_PACKED_PIXELS, -+ .visual = FB_VISUAL_TRUECOLOR, -+ .accel = FB_ACCEL_NONE -+}; -+ -+/* -+ * Filled in at probe time when we find out what the hardware supports -+ */ -+static struct fb_var_screeninfo ubicom32fb_var; -+ -+/* -+ * Private data structure -+ */ -+struct ubicom32fb_drvdata { -+ struct fb_info *fbinfo; -+ bool cmap_alloc; -+ -+ /* -+ * The address of the framebuffer in memory -+ */ -+ void *fb; -+ void *fb_aligned; -+ -+ /* -+ * Total size of vram including alignment allowance -+ */ -+ u32 total_vram_size; -+ -+ /* -+ * Interrupt to set when changing registers -+ */ -+ u32 vp_int; -+ -+ /* -+ * Optional: Interrupt used by TIO to signal us -+ */ -+ u32 rx_int; -+ -+ /* -+ * Base address of the regs for VDC_TIO -+ */ -+ volatile struct vdc_tio_vp_regs *regs; -+ -+ /* -+ * non-zero if we are in yuv mode -+ */ -+ u8_t is_yuv; -+ -+ /* -+ * Fake palette of 16 colors -+ */ -+ u32 pseudo_palette[PALETTE_ENTRIES_NO]; -+ -+ /* -+ * Wait queue and lock used to block when we need to wait -+ * for something to happen. -+ */ -+ wait_queue_head_t waitq; -+ struct mutex lock; -+ -+}; -+ -+/* -+ * ubicom32fb_set_next_frame -+ * Sets the next frame buffer to display -+ * -+ * if sync is TRUE then this function will block until the hardware -+ * acknowledges the change -+ */ -+static inline void ubicom32fb_set_next_frame(struct ubicom32fb_drvdata *ud, void *fb, u8_t sync) -+{ -+ ud->regs->next_frame_flags = ud->is_yuv ? VDCTIO_NEXT_FRAME_FLAG_YUV : 0; -+ ud->regs->next_frame = (void *)((u32_t)fb | 1); -+ -+ /* -+ * If we have interrupts, then we can wait on it -+ */ -+ if (ud->rx_int != -1) { -+ DEFINE_WAIT(wait); -+ unsigned long flags; -+ -+ spin_lock_irqsave(&ud->lock, flags); -+ prepare_to_wait(&ud->waitq, &wait, TASK_INTERRUPTIBLE); -+ spin_unlock_irqrestore(&ud->lock, flags); -+ schedule(); -+ finish_wait(&ud->waitq, &wait); -+ return; -+ } -+ -+ /* -+ * No interrupt, we will just spin here -+ */ -+ while (sync && ((u32_t)ud->regs->next_frame & 1)); -+} -+ -+/* -+ * ubicom32fb_send_command -+ * Sends a command/data pair to the VDC -+ */ -+static inline void ubicom32fb_send_command(struct ubicom32fb_drvdata *ud, u16 command, u8_t block) -+{ -+ ud->regs->command = command; -+ ubicom32_set_interrupt(ud->vp_int); -+ while (block && ud->regs->command); -+} -+ -+/* -+ * ubicom32fb_ioctl -+ * Handles any ioctls sent to us -+ */ -+static int ubicom32fb_ioctl(struct fb_info *fbi, unsigned int cmd, -+ unsigned long arg) -+{ -+ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par; -+ void __user *argp = (void __user *)arg; -+ int retval = -EFAULT; -+ -+ switch (cmd) { -+ case UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC: -+ // check alignment, return -EINVAL if necessary -+ ubicom32fb_set_next_frame(ud, argp, 1); -+ retval = 0; -+ break; -+ -+ case UBICOM32FB_IOCTL_SET_NEXT_FRAME: -+ // check alignment, return -EINVAL if necessary -+ ubicom32fb_set_next_frame(ud, argp, 0); -+ retval = 0; -+ break; -+ -+ case UBICOM32FB_IOCTL_SET_MODE: -+ if (!(ud->regs->caps & VDCTIO_CAPS_SUPPORTS_SCALING)) { -+ break; -+ } else { -+ struct ubicom32fb_mode mode; -+ volatile struct vdc_tio_vp_regs *regs = ud->regs; -+ u32_t flags = 0; -+ -+ if (copy_from_user(&mode, argp, sizeof(mode))) { -+ break; -+ } -+ -+ regs->x_in = mode.width; -+ regs->y_in = mode.height; -+ regs->x_out = regs->xres; -+ regs->y_out = regs->yres; -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER) { -+ flags |= VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER) { -+ flags |= VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER; -+ } -+ ud->is_yuv = mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV; -+ if (ud->is_yuv) { -+ flags |= VDCTIO_SCALE_FLAG_YUV; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255) { -+ flags |= VDCTIO_SCALE_FLAG_VRANGE_16_255; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255) { -+ flags |= VDCTIO_SCALE_FLAG_VRANGE_0_255; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB) { -+ flags |= VDCTIO_SCALE_FLAG_VSUB; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1) { -+ flags |= VDCTIO_SCALE_FLAG_HSUB_2_1; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1) { -+ flags |= VDCTIO_SCALE_FLAG_HSUB_1_1; -+ } -+ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE) { -+ flags |= VDCTIO_SCALE_FLAG_ENABLE; -+ } -+ if (mode.next_frame) { -+ flags |= VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER; -+ regs->next_frame = mode.next_frame; -+ } -+ -+ regs->scale_flags = flags; -+ ubicom32fb_send_command(ud, VDCTIO_COMMAND_SET_SCALE_MODE, 1); -+ retval = 0; -+ break; -+ } -+ -+ default: -+ retval = -ENOIOCTLCMD; -+ break; -+ } -+ -+ return retval; -+} -+ -+/* -+ * ubicom32fb_interrupt -+ * Called by the OS when the TIO has set the rx_int -+ */ -+static irqreturn_t ubicom32fb_interrupt(int vec, void *appdata) -+{ -+ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)appdata; -+ -+ spin_lock(&ud->lock); -+ if (waitqueue_active(&ud->waitq)) { -+ wake_up(&ud->waitq); -+ } -+ spin_unlock(&ud->lock); -+ -+ return IRQ_HANDLED; -+} -+ -+/* -+ * ubicom32fb_pan_display -+ * Pans the display to a given location. Supports only y direction panning. -+ */ -+static int ubicom32fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi) -+{ -+ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par; -+ void *new_addr; -+ -+ /* -+ * Get the last y line that would be displayed. Since we don't support YWRAP, -+ * it must be less than our virtual y size. -+ */ -+ u32 lasty = var->yoffset + var->yres; -+ if (lasty > fbi->var.yres_virtual) { -+ /* -+ * We would fall off the end of our frame buffer if we panned here. -+ */ -+ return -EINVAL; -+ } -+ -+ if (var->xoffset) { -+ /* -+ * We don't support panning in the x direction -+ */ -+ return -EINVAL; -+ } -+ -+ /* -+ * Everything looks sane, go ahead and pan -+ * -+ * We have to calculate a new address for the VDC to look at -+ */ -+ new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length); -+ -+ /* -+ * Send down the command. The buffer will switch at the next vertical blank -+ */ -+ ubicom32fb_set_next_frame(ud, (void *)new_addr, 0); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32fb_setcolreg -+ * Sets a color in our virtual palette -+ */ -+static int ubicom32fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi) -+{ -+ u32 *palette = fbi->pseudo_palette; -+ -+ if (regno >= PALETTE_ENTRIES_NO) { -+ return -EINVAL; -+ } -+ -+ /* -+ * We only use 8 bits from each color -+ */ -+ red >>= 8; -+ green >>= 8; -+ blue >>= 8; -+ -+ /* -+ * Convert any grayscale values -+ */ -+ if (fbi->var.grayscale) { -+ u16 gray = red + green + blue; -+ gray += (gray >> 2) + (gray >> 3) - (gray >> 7); -+ gray >>= 2; -+ if (gray > 255) { -+ gray = 255; -+ } -+ red = gray; -+ blue = gray; -+ green = gray; -+ } -+ -+ palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) | -+ (blue << fbi->var.blue.offset); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32fb_mmap -+ */ -+static int ubicom32fb_mmap(struct fb_info *info, struct vm_area_struct *vma) -+{ -+ struct ubicom32fb_drvdata *drvdata = (struct ubicom32fb_drvdata *)info->par; -+ -+ vma->vm_start = (unsigned long)(drvdata->fb_aligned); -+ -+ vma->vm_end = vma->vm_start + info->fix.smem_len; -+ -+ /* For those who don't understand how mmap works, go read -+ * Documentation/nommu-mmap.txt. -+ * For those that do, you will know that the VM_MAYSHARE flag -+ * must be set in the vma->vm_flags structure on noMMU -+ * Other flags can be set, and are documented in -+ * include/linux/mm.h -+ */ -+ -+ vma->vm_flags |= VM_MAYSHARE | VM_SHARED; -+ -+ return 0; -+} -+ -+/* -+ * ubicom32fb_blank -+ */ -+static int ubicom32fb_blank(int blank_mode, struct fb_info *fbi) -+{ -+ return 0; -+#if 0 -+ struct ubicom32fb_drvdata *drvdata = to_ubicom32fb_drvdata(fbi); -+ -+ switch (blank_mode) { -+ case FB_BLANK_UNBLANK: -+ /* turn on panel */ -+ ubicom32fb_out_be32(drvdata, REG_CTRL, drvdata->reg_ctrl_default); -+ break; -+ -+ case FB_BLANK_NORMAL: -+ case FB_BLANK_VSYNC_SUSPEND: -+ case FB_BLANK_HSYNC_SUSPEND: -+ case FB_BLANK_POWERDOWN: -+ /* turn off panel */ -+ ubicom32fb_out_be32(drvdata, REG_CTRL, 0); -+ default: -+ break; -+ -+ } -+ return 0; /* success */ -+#endif -+} -+ -+static struct fb_ops ubicom32fb_ops = -+{ -+ .owner = THIS_MODULE, -+ .fb_pan_display = ubicom32fb_pan_display, -+ .fb_setcolreg = ubicom32fb_setcolreg, -+ .fb_blank = ubicom32fb_blank, -+ .fb_mmap = ubicom32fb_mmap, -+ .fb_ioctl = ubicom32fb_ioctl, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+}; -+ -+/* -+ * ubicom32fb_release -+ */ -+static int ubicom32fb_release(struct device *dev) -+{ -+ struct ubicom32fb_drvdata *ud = dev_get_drvdata(dev); -+ -+#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) -+ //ubicom32fb_blank(VESA_POWERDOWN, &drvdata->info); -+#endif -+ -+ unregister_framebuffer(ud->fbinfo); -+ -+ if (ud->cmap_alloc) { -+ fb_dealloc_cmap(&ud->fbinfo->cmap); -+ } -+ -+ if (ud->fb) { -+ kfree(ud->fb); -+ } -+ -+ if (ud->rx_int != -1) { -+ free_irq(ud->rx_int, ud); -+ } -+ -+ /* -+ * Turn off the display -+ */ -+ //ubicom32fb_out_be32(drvdata, REG_CTRL, 0); -+ //iounmap(drvdata->regs); -+ -+ framebuffer_release(ud->fbinfo); -+ dev_set_drvdata(dev, NULL); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32fb_platform_probe -+ */ -+static int __init ubicom32fb_platform_probe(struct platform_device *pdev) -+{ -+ struct ubicom32fb_drvdata *ud; -+ struct resource *irq_resource_rx; -+ struct resource *irq_resource_tx; -+ struct resource *mem_resource; -+ struct fb_info *fbinfo; -+ int rc; -+ size_t fbsize; -+ struct device *dev = &pdev->dev; -+ int offset; -+ struct vdc_tio_vp_regs *regs; -+ -+ /* -+ * Get our resources -+ */ -+ irq_resource_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (!irq_resource_tx) { -+ dev_err(dev, "No tx IRQ resource assigned\n"); -+ return -ENODEV; -+ } -+ -+ irq_resource_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1); -+ if (!irq_resource_rx) { -+ dev_err(dev, "No rx IRQ resource assigned\n"); -+ return -ENODEV; -+ } -+ -+ mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!mem_resource || !mem_resource->start) { -+ dev_err(dev, "No mem resource assigned\n"); -+ return -ENODEV; -+ } -+ regs = (struct vdc_tio_vp_regs *)mem_resource->start; -+ if (regs->version != VDCTIO_VP_VERSION) { -+ dev_err(dev, "VDCTIO is not compatible with this driver tio:%x drv:%x\n", -+ regs->version, VDCTIO_VP_VERSION); -+ return -ENODEV; -+ } -+ -+ /* -+ * This is the minimum VRAM size -+ */ -+ fbsize = regs->xres * regs->yres * (regs->bpp / 8); -+ if (!vram_size) { -+ vram_size = (fbsize + 1023) / 1024; -+ } else { -+ if (fbsize > (vram_size * 1024)) { -+ dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize); -+ return -ENOMEM; // should be ebadparam? -+ } -+ } -+ -+ /* -+ * Allocate the framebuffer instance + our private data -+ */ -+ fbinfo = framebuffer_alloc(sizeof(struct ubicom32fb_drvdata), &pdev->dev); -+ if (!fbinfo) { -+ dev_err(dev, "Not enough memory to allocate instance.\n"); -+ return -ENOMEM; -+ } -+ -+ /* -+ * Fill in our private data. -+ */ -+ ud = (struct ubicom32fb_drvdata *)fbinfo->par; -+ ud->fbinfo = fbinfo; -+ ud->regs = (struct vdc_tio_vp_regs *)(mem_resource->start); -+ dev_set_drvdata(dev, ud); -+ -+ ud->vp_int = irq_resource_tx->start; -+ -+ /* -+ * If we were provided an rx_irq then we need to init the appropriate -+ * queues, locks, and functions. -+ */ -+ ud->rx_int = -1; -+ if (irq_resource_rx->start != DEVTREE_IRQ_NONE) { -+ init_waitqueue_head(&ud->waitq); -+ mutex_init(&ud->lock); -+ if (request_irq(ud->rx_int, ubicom32fb_interrupt, IRQF_SHARED, "ubicom32fb_rx", ud)) { -+ dev_err(dev, "Couldn't request rx IRQ\n"); -+ rc = -ENOMEM; -+ goto fail; -+ } -+ ud->rx_int = irq_resource_rx->start; -+ } -+ -+ /* -+ * Allocate and align the requested amount of VRAM -+ */ -+ ud->total_vram_size = (vram_size * 1024) + regs->fb_align; -+ ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL); -+ if (ud->fb == NULL) { -+ dev_err(dev, "Couldn't allocate VRAM\n"); -+ rc = -ENOMEM; -+ goto fail; -+ } -+ -+ offset = (u32_t)ud->fb & (regs->fb_align - 1); -+ if (!offset) { -+ ud->fb_aligned = ud->fb; -+ } else { -+ offset = regs->fb_align - offset; -+ ud->fb_aligned = ud->fb + offset; -+ } -+ -+ /* -+ * Clear the entire frame buffer -+ */ -+ if (!init_value) { -+ memset(ud->fb_aligned, 0, vram_size * 1024); -+ } else { -+ unsigned short *p = ud->fb_aligned; -+ int i; -+ for (i = 0; i < ((vram_size * 1024) / sizeof(u16_t)); i++) { -+ *p++ = init_value; -+ } -+ } -+ -+ /* -+ * Fill in the fb_var_screeninfo structure -+ */ -+ memset(&ubicom32fb_var, 0, sizeof(ubicom32fb_var)); -+ ubicom32fb_var.bits_per_pixel = regs->bpp; -+ ubicom32fb_var.red.offset = regs->rshift; -+ ubicom32fb_var.green.offset = regs->gshift; -+ ubicom32fb_var.blue.offset = regs->bshift; -+ ubicom32fb_var.red.length = regs->rbits; -+ ubicom32fb_var.green.length = regs->gbits; -+ ubicom32fb_var.blue.length = regs->bbits; -+ ubicom32fb_var.activate = FB_ACTIVATE_NOW; -+ -+#if 0 -+ /* -+ * Turn on the display -+ */ -+ ud->reg_ctrl_default = REG_CTRL_ENABLE; -+ if (regs->rotate_screen) -+ ud->reg_ctrl_default |= REG_CTRL_ROTATE; -+ ubicom32fb_out_be32(ud, REG_CTRL, ud->reg_ctrl_default); -+#endif -+ -+ /* -+ * Fill in the fb_info structure -+ */ -+ ud->fbinfo->device = dev; -+ ud->fbinfo->screen_base = (void *)ud->fb_aligned; -+ ud->fbinfo->fbops = &ubicom32fb_ops; -+ ud->fbinfo->fix = ubicom32fb_fix; -+ ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned; -+ ud->fbinfo->fix.smem_len = fbsize; -+ ud->fbinfo->fix.line_length = regs->xres * (regs->bpp / 8); -+ -+ /* -+ * We support panning in the y direction only -+ */ -+ ud->fbinfo->fix.xpanstep = 0; -+ ud->fbinfo->fix.ypanstep = 1; -+ -+ ud->fbinfo->pseudo_palette = ud->pseudo_palette; -+ ud->fbinfo->flags = FBINFO_DEFAULT; -+ ud->fbinfo->var = ubicom32fb_var; -+ ud->fbinfo->var.xres = regs->xres; -+ ud->fbinfo->var.yres = regs->yres; -+ -+ /* -+ * We cannot pan in the X direction, so xres_virtual is regs->xres -+ * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length -+ */ -+ ud->fbinfo->var.xres_virtual = regs->xres; -+ ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length; -+ -+ //ud->fbinfo->var.height = regs->height_mm; -+ //ud->fbinfo->var.width = regs->width_mm; -+ -+ /* -+ * Allocate a color map -+ */ -+ rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0); -+ if (rc) { -+ dev_err(dev, "Fail to allocate colormap (%d entries)\n", -+ PALETTE_ENTRIES_NO); -+ goto fail; -+ } -+ ud->cmap_alloc = true; -+ -+ /* -+ * Register new frame buffer -+ */ -+ rc = register_framebuffer(ud->fbinfo); -+ if (rc) { -+ dev_err(dev, "Could not register frame buffer\n"); -+ goto fail; -+ } -+ -+ /* -+ * Start up the VDC -+ */ -+ ud->regs->next_frame = ud->fb; -+ ubicom32fb_send_command(ud, VDCTIO_COMMAND_START, 0); -+ -+ /* -+ * Tell the log we are here -+ */ -+ dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u), regs=%p irqtx=%u irqrx=%u\n", -+ ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres, -+ ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual, ud->regs, -+ irq_resource_tx->start, irq_resource_rx->start); -+ -+ /* -+ * Success -+ */ -+ return 0; -+ -+fail: -+ ubicom32fb_release(dev); -+ return rc; -+} -+ -+/* -+ * ubicom32fb_platform_remove -+ */ -+static int ubicom32fb_platform_remove(struct platform_device *pdev) -+{ -+ dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n"); -+ return ubicom32fb_release(&pdev->dev); -+} -+ -+static struct platform_driver ubicom32fb_platform_driver = { -+ .probe = ubicom32fb_platform_probe, -+ .remove = ubicom32fb_platform_remove, -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+#ifndef MODULE -+/* -+ * ubicom32fb_setup -+ * Process kernel boot options -+ */ -+static int __init ubicom32fb_setup(char *options) -+{ -+ char *this_opt; -+ -+ if (!options || !*options) { -+ return 0; -+ } -+ -+ while ((this_opt = strsep(&options, ",")) != NULL) { -+ if (!*this_opt) { -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "init_value=", 10)) { -+ init_value = simple_strtoul(this_opt + 11, NULL, 0); -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "vram_size=", 10)) { -+ vram_size = simple_strtoul(this_opt + 10, NULL, 0); -+ continue; -+ } -+ } -+ return 0; -+} -+#endif /* MODULE */ -+ -+/* -+ * ubicom32fb_init -+ */ -+static int __devinit ubicom32fb_init(void) -+{ -+#ifndef MODULE -+ /* -+ * Get kernel boot options (in 'video=ubicom32fb:<options>') -+ */ -+ char *option = NULL; -+ -+ if (fb_get_options(DRIVER_NAME, &option)) { -+ return -ENODEV; -+ } -+ ubicom32fb_setup(option); -+#endif /* MODULE */ -+ -+ return platform_driver_register(&ubicom32fb_platform_driver); -+} -+module_init(ubicom32fb_init); -+ -+/* -+ * ubicom32fb_exit -+ */ -+static void __exit ubicom32fb_exit(void) -+{ -+ platform_driver_unregister(&ubicom32fb_platform_driver); -+} -+module_exit(ubicom32fb_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Patrick Tjin <@ubicom.com>"); -+MODULE_DESCRIPTION(DRIVER_DESCRIPTION); ---- /dev/null -+++ b/drivers/video/ubicom32vfb.c -@@ -0,0 +1,492 @@ -+/* -+ * drivers/video/ubicom32vfb.c -+ * Ubicom32 virtual frame buffer driver -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+/* -+ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by -+ * Geert Uytterhoeven. -+ */ -+ -+#include <linux/device.h> -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/version.h> -+#include <linux/errno.h> -+#include <linux/string.h> -+#include <linux/mm.h> -+#include <linux/fb.h> -+#include <linux/init.h> -+#include <linux/dma-mapping.h> -+#include <linux/platform_device.h> -+#include <linux/device.h> -+#include <linux/uaccess.h> -+ -+#define DRIVER_NAME "ubicom32vfb" -+#define DRIVER_DESCRIPTION "Ubicom32 virtual frame buffer driver" -+ -+#define PALETTE_ENTRIES_NO 16 -+ -+/* -+ * Option variables -+ * -+ * vram_size: VRAM size in kilobytes, subject to alignment -+ */ -+static int vram_size = 0; -+module_param(vram_size, int, 0); -+MODULE_PARM_DESC(vram_size, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment"); -+ -+static int xres = 320; -+module_param(xres, int, 0); -+MODULE_PARM_DESC(xres, "x (horizontal) resolution"); -+ -+static int yres = 240; -+module_param(yres, int, 0); -+MODULE_PARM_DESC(yres, "y (vertical) resolution"); -+ -+static int bgr = 0; -+module_param(bgr, int, 0); -+MODULE_PARM_DESC(bgr, "display is BGR (Blue is MSB)"); -+ -+/* -+ * Buffer alignment, must not be 0 -+ */ -+#define UBICOM32VFB_ALIGNMENT 4 -+ -+/* -+ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in. -+ */ -+static struct fb_fix_screeninfo ubicom32vfb_fix = { -+ .id = "Ubicom32", -+ .type = FB_TYPE_PACKED_PIXELS, -+ .visual = FB_VISUAL_TRUECOLOR, -+ .accel = FB_ACCEL_NONE -+}; -+ -+/* -+ * Filled in at probe time when we find out what the hardware supports -+ */ -+static struct fb_var_screeninfo ubicom32vfb_var; -+ -+/* -+ * Private data structure -+ */ -+struct ubicom32vfb_drvdata { -+ struct fb_info *fbinfo; -+ bool cmap_alloc; -+ -+ /* -+ * The address of the framebuffer in memory -+ */ -+ void *fb; -+ void *fb_aligned; -+ -+ /* -+ * Total size of vram including alignment allowance -+ */ -+ u32 total_vram_size; -+ -+ /* -+ * Fake palette of 16 colors -+ */ -+ u32 pseudo_palette[PALETTE_ENTRIES_NO]; -+}; -+ -+/* -+ * ubicom32vfb_pan_display -+ * Pans the display to a given location. Supports only y direction panning. -+ */ -+static int ubicom32vfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi) -+{ -+ struct ubicom32vfb_drvdata *ud = (struct ubicom32vfb_drvdata *)fbi->par; -+ void *new_addr; -+ -+ /* -+ * Get the last y line that would be displayed. Since we don't support YWRAP, -+ * it must be less than our virtual y size. -+ */ -+ u32 lasty = var->yoffset + var->yres; -+ if (lasty > fbi->var.yres_virtual) { -+ /* -+ * We would fall off the end of our frame buffer if we panned here. -+ */ -+ return -EINVAL; -+ } -+ -+ if (var->xoffset) { -+ /* -+ * We don't support panning in the x direction -+ */ -+ return -EINVAL; -+ } -+ -+ /* -+ * Everything looks sane, go ahead and pan -+ * -+ * We have to calculate a new address for the VDC to look at -+ */ -+ new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32vfb_setcolreg -+ * Sets a color in our virtual palette -+ */ -+static int ubicom32vfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi) -+{ -+ u32 *palette = fbi->pseudo_palette; -+ -+ if (regno >= PALETTE_ENTRIES_NO) { -+ return -EINVAL; -+ } -+ -+ /* -+ * We only use 8 bits from each color -+ */ -+ red >>= 8; -+ green >>= 8; -+ blue >>= 8; -+ -+ /* -+ * Convert any grayscale values -+ */ -+ if (fbi->var.grayscale) { -+ u16 gray = red + green + blue; -+ gray += (gray >> 2) + (gray >> 3) - (gray >> 7); -+ gray >>= 2; -+ if (gray > 255) { -+ gray = 255; -+ } -+ red = gray; -+ blue = gray; -+ green = gray; -+ } -+ -+ palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) | -+ (blue << fbi->var.blue.offset); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32vfb_mmap -+ */ -+static int ubicom32vfb_mmap(struct fb_info *info, struct vm_area_struct *vma) -+{ -+ struct ubicom32vfb_drvdata *drvdata = (struct ubicom32vfb_drvdata *)info->par; -+ -+ vma->vm_start = (unsigned long)(drvdata->fb_aligned); -+ -+ vma->vm_end = vma->vm_start + info->fix.smem_len; -+ -+ /* For those who don't understand how mmap works, go read -+ * Documentation/nommu-mmap.txt. -+ * For those that do, you will know that the VM_MAYSHARE flag -+ * must be set in the vma->vm_flags structure on noMMU -+ * Other flags can be set, and are documented in -+ * include/linux/mm.h -+ */ -+ -+ vma->vm_flags |= VM_MAYSHARE | VM_SHARED; -+ -+ return 0; -+} -+ -+static struct fb_ops ubicom32vfb_ops = -+{ -+ .owner = THIS_MODULE, -+ .fb_pan_display = ubicom32vfb_pan_display, -+ .fb_setcolreg = ubicom32vfb_setcolreg, -+ .fb_mmap = ubicom32vfb_mmap, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+}; -+ -+/* -+ * ubicom32vfb_release -+ */ -+static int ubicom32vfb_release(struct device *dev) -+{ -+ struct ubicom32vfb_drvdata *ud = dev_get_drvdata(dev); -+ -+ unregister_framebuffer(ud->fbinfo); -+ -+ if (ud->cmap_alloc) { -+ fb_dealloc_cmap(&ud->fbinfo->cmap); -+ } -+ -+ if (ud->fb) { -+ kfree(ud->fb); -+ } -+ -+ framebuffer_release(ud->fbinfo); -+ dev_set_drvdata(dev, NULL); -+ -+ return 0; -+} -+ -+/* -+ * ubicom32vfb_platform_probe -+ */ -+static int __init ubicom32vfb_platform_probe(struct platform_device *pdev) -+{ -+ struct ubicom32vfb_drvdata *ud; -+ struct fb_info *fbinfo; -+ int rc; -+ size_t fbsize; -+ struct device *dev = &pdev->dev; -+ int offset; -+ -+ /* -+ * This is the minimum VRAM size -+ */ -+ fbsize = xres * yres * 2; -+ if (!vram_size) { -+ vram_size = (fbsize + 1023) / 1024; -+ } else { -+ if (fbsize > (vram_size * 1024)) { -+ dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize); -+ return -ENOMEM; // should be ebadparam? -+ } -+ } -+ -+ /* -+ * Allocate the framebuffer instance + our private data -+ */ -+ fbinfo = framebuffer_alloc(sizeof(struct ubicom32vfb_drvdata), &pdev->dev); -+ if (!fbinfo) { -+ dev_err(dev, "Not enough memory to allocate instance.\n"); -+ return -ENOMEM; -+ } -+ -+ /* -+ * Fill in our private data. -+ */ -+ ud = (struct ubicom32vfb_drvdata *)fbinfo->par; -+ ud->fbinfo = fbinfo; -+ dev_set_drvdata(dev, ud); -+ -+ /* -+ * Allocate and align the requested amount of VRAM -+ */ -+ ud->total_vram_size = (vram_size * 1024) + UBICOM32VFB_ALIGNMENT; -+ ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL); -+ if (ud->fb == NULL) { -+ dev_err(dev, "Couldn't allocate VRAM\n"); -+ rc = -ENOMEM; -+ goto fail; -+ } -+ -+ offset = (u32_t)ud->fb & (UBICOM32VFB_ALIGNMENT - 1); -+ if (!offset) { -+ ud->fb_aligned = ud->fb; -+ } else { -+ offset = UBICOM32VFB_ALIGNMENT - offset; -+ ud->fb_aligned = ud->fb + offset; -+ } -+ -+ /* -+ * Clear the entire frame buffer -+ */ -+ memset(ud->fb_aligned, 0, vram_size * 1024); -+ -+ /* -+ * Fill in the fb_var_screeninfo structure -+ */ -+ memset(&ubicom32vfb_var, 0, sizeof(ubicom32vfb_var)); -+ ubicom32vfb_var.bits_per_pixel = 16; -+ ubicom32vfb_var.red.length = 5; -+ ubicom32vfb_var.green.length = 6; -+ ubicom32vfb_var.green.offset = 5; -+ ubicom32vfb_var.blue.length = 5; -+ ubicom32vfb_var.activate = FB_ACTIVATE_NOW; -+ -+ if (bgr) { -+ ubicom32vfb_var.red.offset = 0; -+ ubicom32vfb_var.blue.offset = 11; -+ } else { -+ ubicom32vfb_var.red.offset = 11; -+ ubicom32vfb_var.blue.offset = 0; -+ } -+ -+ /* -+ * Fill in the fb_info structure -+ */ -+ ud->fbinfo->device = dev; -+ ud->fbinfo->screen_base = (void *)ud->fb_aligned; -+ ud->fbinfo->fbops = &ubicom32vfb_ops; -+ ud->fbinfo->fix = ubicom32vfb_fix; -+ ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned; -+ ud->fbinfo->fix.smem_len = fbsize; -+ ud->fbinfo->fix.line_length = xres * 2; -+ -+ /* -+ * We support panning in the y direction only -+ */ -+ ud->fbinfo->fix.xpanstep = 0; -+ ud->fbinfo->fix.ypanstep = 1; -+ -+ ud->fbinfo->pseudo_palette = ud->pseudo_palette; -+ ud->fbinfo->flags = FBINFO_DEFAULT; -+ ud->fbinfo->var = ubicom32vfb_var; -+ ud->fbinfo->var.xres = xres; -+ ud->fbinfo->var.yres = yres; -+ -+ /* -+ * We cannot pan in the X direction, so xres_virtual is xres -+ * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length -+ */ -+ ud->fbinfo->var.xres_virtual = xres; -+ ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length; -+ -+ /* -+ * Allocate a color map -+ */ -+ rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0); -+ if (rc) { -+ dev_err(dev, "Fail to allocate colormap (%d entries)\n", -+ PALETTE_ENTRIES_NO); -+ goto fail; -+ } -+ ud->cmap_alloc = true; -+ -+ /* -+ * Register new frame buffer -+ */ -+ rc = register_framebuffer(ud->fbinfo); -+ if (rc) { -+ dev_err(dev, "Could not register frame buffer\n"); -+ goto fail; -+ } -+ -+ /* -+ * Tell the log we are here -+ */ -+ dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u)\n", -+ ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres, -+ ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual); -+ -+ /* -+ * Success -+ */ -+ return 0; -+ -+fail: -+ ubicom32vfb_release(dev); -+ return rc; -+} -+ -+/* -+ * ubicom32vfb_platform_remove -+ */ -+static int ubicom32vfb_platform_remove(struct platform_device *pdev) -+{ -+ dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n"); -+ return ubicom32vfb_release(&pdev->dev); -+} -+ -+static struct platform_driver ubicom32vfb_platform_driver = { -+ .probe = ubicom32vfb_platform_probe, -+ .remove = ubicom32vfb_platform_remove, -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+#ifndef MODULE -+/* -+ * ubicom32vfb_setup -+ * Process kernel boot options -+ */ -+static int __init ubicom32vfb_setup(char *options) -+{ -+ char *this_opt; -+ -+ if (!options || !*options) { -+ return 0; -+ } -+ -+ while ((this_opt = strsep(&options, ",")) != NULL) { -+ if (!*this_opt) { -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "vram_size=", 10)) { -+ vram_size = simple_strtoul(this_opt + 10, NULL, 0); -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "bgr=", 4)) { -+ bgr = simple_strtoul(this_opt + 4, NULL, 0); -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "xres=", 5)) { -+ xres = simple_strtoul(this_opt + 5, NULL, 0); -+ continue; -+ } -+ -+ if (!strncmp(this_opt, "yres=", 5)) { -+ yres = simple_strtoul(this_opt + 5, NULL, 0); -+ continue; -+ } -+ } -+ return 0; -+} -+#endif /* MODULE */ -+ -+/* -+ * ubicom32vfb_init -+ */ -+static int __devinit ubicom32vfb_init(void) -+{ -+#ifndef MODULE -+ /* -+ * Get kernel boot options (in 'video=ubicom32vfb:<options>') -+ */ -+ char *option = NULL; -+ -+ if (fb_get_options(DRIVER_NAME, &option)) { -+ return -ENODEV; -+ } -+ ubicom32vfb_setup(option); -+#endif /* MODULE */ -+ -+ return platform_driver_register(&ubicom32vfb_platform_driver); -+} -+module_init(ubicom32vfb_init); -+ -+/* -+ * ubicom32vfb_exit -+ */ -+static void __exit ubicom32vfb_exit(void) -+{ -+ platform_driver_unregister(&ubicom32vfb_platform_driver); -+} -+module_exit(ubicom32vfb_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Patrick Tjin <@ubicom.com>"); -+MODULE_DESCRIPTION(DRIVER_DESCRIPTION); ---- a/drivers/watchdog/Kconfig -+++ b/drivers/watchdog/Kconfig -@@ -856,6 +856,19 @@ config WATCHDOG_RIO - machines. The watchdog timeout period is normally one minute but - can be changed with a boot-time parameter. - -+# Ubicom32 -+ -+config UBI32_WDT -+ tristate "Ubicom32 Hardware Watchdog support" -+ depends on UBICOM32 -+ ---help--- -+ If you say yes here you will get support for the Ubicom32 On-Chip -+ Watchdog Timer. If you have one of these processors and wish to -+ have watchdog support enabled, say Y, otherwise say N. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called ubi32_wdt. -+ - # XTENSA Architecture - - # ---- a/drivers/watchdog/Makefile -+++ b/drivers/watchdog/Makefile -@@ -130,6 +130,9 @@ obj-$(CONFIG_SH_WDT) += shwdt.o - obj-$(CONFIG_WATCHDOG_RIO) += riowd.o - obj-$(CONFIG_WATCHDOG_CP1XXX) += cpwd.o - -+# Ubicom32 Architecture -+obj-$(CONFIG_UBI32_WDT) += ubi32_wdt.o -+ - # XTENSA Architecture - - # Architecture Independant ---- /dev/null -+++ b/drivers/watchdog/ubi32_wdt.c -@@ -0,0 +1,630 @@ -+/* -+ * drivers/watchdog/ubi32_wdt.c -+ * Ubicom32 Watchdog Driver -+ * -+ * Originally based on softdog.c -+ * Copyright 2006-2007 Analog Devices Inc. -+ * Copyright 2006-2007 Michele d'Amico -+ * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk> -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+#include <linux/platform_device.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/types.h> -+#include <linux/timer.h> -+#include <linux/miscdevice.h> -+#include <linux/watchdog.h> -+#include <linux/fs.h> -+#include <linux/notifier.h> -+#include <linux/reboot.h> -+#include <linux/init.h> -+#include <linux/interrupt.h> -+#include <linux/uaccess.h> -+#include <asm/ip5000.h> -+ -+#define WATCHDOG_NAME "ubi32-wdt" -+#define PFX WATCHDOG_NAME ": " -+ -+#define OSC1_FREQ 12000000 -+#define WATCHDOG_SEC_TO_CYC(x) (OSC1_FREQ * (x)) -+#define WATCHDOG_MAX_SEC (0xffffffff / OSC1_FREQ) -+ -+#define MIN_PROCESSOR_ADDRESS 0x03000000 -+ -+static DEFINE_SPINLOCK(ubi32_wdt_spinlock); -+ -+#define WATCHDOG_TIMEOUT 20 -+ -+#if defined(CONFIG_WATCHDOG_NOWAYOUT) -+#define WATCHDOG_NOWAYOUT 1 -+#else -+#define WATCHDOG_NOWAYOUT 0 -+#endif -+ -+static unsigned int timeout = WATCHDOG_TIMEOUT; -+static int nowayout = WATCHDOG_NOWAYOUT; -+static struct watchdog_info ubi32_wdt_info; -+static unsigned long open_check; -+static char expect_close; -+ -+#if !defined(CONFIG_SMP) -+#define UBI32_WDT_LOCK(lock, flags) local_irq_save(flags) -+#define UBI32_WDT_UNLOCK(lock, flags) local_irq_restore(flags) -+#define UBI32_WDT_LOCK_CHECK() -+#else -+#define UBI32_WDT_LOCK(lock, flags) spin_lock_irqsave((lock), (flags)); -+#define UBI32_WDT_UNLOCK(lock, flags) spin_unlock_irqrestore((lock), (flags)); -+#define UBI32_WDT_LOCK_CHECK() BUG_ON(!spin_is_locked(&ubi32_wdt_spinlock)); -+#endif -+ -+/* -+ * ubi32_wdt_remaining() -+ * Return the approximate number of seconds remaining -+ */ -+static int ubi32_wdt_remaining(void) -+{ -+ int compare; -+ int curr; -+ -+ UBI32_WDT_LOCK_CHECK(); -+ -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL); -+ compare = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcom); -+ curr = ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0); -+ return (compare - curr) / OSC1_FREQ; -+ -+} -+ -+/* -+ * ubi32_wdt_keepalive() -+ * Keep the Userspace Watchdog Alive -+ * -+ * The Userspace watchdog got a KeepAlive: schedule the next timeout. -+ */ -+static int ubi32_wdt_keepalive(void) -+{ -+ UBI32_WDT_LOCK_CHECK(); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom, -+ ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval) -+ + WATCHDOG_SEC_TO_CYC(timeout)); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0); -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_stop() -+ * Stop the on-chip Watchdog -+ */ -+static int ubi32_wdt_stop(void) -+{ -+ UBI32_WDT_LOCK_CHECK(); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, TIMER_WATCHDOG_DISABLE); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0); -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_start() -+ * Start the on-chip Watchdog -+ */ -+static int ubi32_wdt_start(void) -+{ -+ UBI32_WDT_LOCK_CHECK(); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom, -+ ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval) -+ + WATCHDOG_SEC_TO_CYC(timeout)); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, ~TIMER_WATCHDOG_DISABLE); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0); -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_running() -+ * Return true if the watchdog is configured -+ */ -+static int ubi32_wdt_running(void) -+{ -+ int enabled; -+ -+ UBI32_WDT_LOCK_CHECK(); -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL); -+ enabled = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcfg) == ~TIMER_WATCHDOG_DISABLE; -+ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0); -+ return enabled; -+} -+ -+/* -+ * ubi32_wdt_set_timeout() -+ * Set the Userspace Watchdog timeout -+ * -+ * - @t: new timeout value (in seconds) -+ */ -+static int ubi32_wdt_set_timeout(unsigned long t) -+{ -+ UBI32_WDT_LOCK_CHECK(); -+ -+ if (t > WATCHDOG_MAX_SEC) { -+ printk(KERN_WARNING PFX "request to large: %ld [1-%d] sec)\n", t, WATCHDOG_MAX_SEC); -+ return -EINVAL; -+ } -+ -+ /* -+ * If we are running, then reset the time value so -+ * that the new value has an immediate effect. -+ */ -+ timeout = t; -+ if (ubi32_wdt_running()) { -+ ubi32_wdt_keepalive(); -+ } -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_open() -+ * Open the Device -+ */ -+static int ubi32_wdt_open(struct inode *inode, struct file *file) -+{ -+ unsigned long flags; -+ -+ if (test_and_set_bit(0, &open_check)) -+ return -EBUSY; -+ -+ if (nowayout) -+ __module_get(THIS_MODULE); -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_start(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ -+ return nonseekable_open(inode, file); -+} -+ -+/* -+ * ubi32_wdt_close() -+ * Close the Device -+ */ -+static int ubi32_wdt_release(struct inode *inode, struct file *file) -+{ -+ unsigned long flags; -+ -+ /* -+ * If we don't expect a close, then the watchdog continues -+ * even though the device is closed. The caller will have -+ * a full timeout value to reopen the device and continue -+ * stroking it. -+ */ -+ if (expect_close != 42) { -+ printk(KERN_CRIT PFX -+ "Unexpected close, not stopping watchdog!\n"); -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_keepalive(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ } else { -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_stop(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ } -+ -+ expect_close = 0; -+ clear_bit(0, &open_check); -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_write() -+ * Write to Device -+ * -+ * If the user writes nothing, nothing happens. -+ * If the user writes a V, then we expect a close and allow a release. -+ * If the user writes anything else, it is ignored. -+ */ -+static ssize_t ubi32_wdt_write(struct file *file, const char __user *data, -+ size_t len, loff_t *ppos) -+{ -+ size_t i; -+ unsigned long flags; -+ -+ /* -+ * Every write resets the expect_close. The last write -+ * must be a V to allow shutdown on close. -+ */ -+ expect_close = 0; -+ -+ /* -+ * Empty writes still ping. -+ */ -+ if (!len) { -+ goto ping; -+ } -+ -+ /* -+ * If nowayout is set, it does not matter if the caller -+ * is trying to send the magic 'V' we will not allow a -+ * close to stop us. -+ */ -+ if (nowayout) { -+ goto ping; -+ } -+ -+ /* -+ * See if the program wrote a 'V' and if so disable -+ * the watchdog on release. -+ */ -+ for (i = 0; i < len; i++) { -+ char c; -+ if (get_user(c, data + i)) { -+ return -EFAULT; -+ } -+ -+ if (c == 'V') { -+ expect_close = 42; -+ } -+ } -+ -+ping: -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_keepalive(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return len; -+} -+ -+/* -+ * ubi32_wdt_ioctl() -+ * Query the watchdog device. -+ * -+ * Query basic information from the device or ping it, as outlined by the -+ * watchdog API. -+ */ -+static long ubi32_wdt_ioctl(struct file *file, -+ unsigned int cmd, unsigned long arg) -+{ -+ void __user *argp = (void __user *)arg; -+ int __user *p = argp; -+ -+ switch (cmd) { -+ case WDIOC_GETSUPPORT: -+ if (copy_to_user(argp, &ubi32_wdt_info, sizeof(ubi32_wdt_info))) { -+ return -EFAULT; -+ } -+ return 0; -+ -+ case WDIOC_GETSTATUS: { -+ unsigned long flags; -+ int running; -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ running = ubi32_wdt_running(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return running; -+ } -+ -+ case WDIOC_GETBOOTSTATUS: -+ return ubicom32_get_reset_reason(); -+ -+ case WDIOC_SETOPTIONS: { -+ unsigned long flags; -+ int options, ret = -EINVAL; -+ -+ /* -+ * The sample application does not pass a pointer -+ * but directly passes a value of 1 or 2; however -+ * all of the implementations (and thus probably -+ * the real applications) pass a pointer to a value. -+ * -+ * It should be noted that WDIOC_SETOPTIONS is defined as -+ * _IOR(WATCHDOG_IOCTL_BASE, 4, int), which means -+ * that it should be an int and NOT a pointer. -+ * -+ * TODO: Examine this code for future chips. -+ * TODO: Report the sample code defect. -+ */ -+ if ((int)p < MIN_PROCESSOR_ADDRESS) { -+ options = (int)p; -+ } else { -+ if (get_user(options, p)) -+ return -EFAULT; -+ } -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ if (options & WDIOS_DISABLECARD) { -+ ubi32_wdt_stop(); -+ ret = 0; -+ } -+ if (options & WDIOS_ENABLECARD) { -+ ubi32_wdt_start(); -+ ret = 0; -+ } -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return ret; -+ } -+ -+ case WDIOC_KEEPALIVE: { -+ unsigned long flags; -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_keepalive(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return 0; -+ } -+ -+ case WDIOC_SETTIMEOUT: { -+ int new_timeout; -+ unsigned long flags; -+ int ret = 0; -+ -+ if (get_user(new_timeout, p)) -+ return -EFAULT; -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ret = ubi32_wdt_set_timeout(new_timeout); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return ret; -+ -+ } -+ -+ case WDIOC_GETTIMEOUT: -+ return put_user(timeout, p); -+ -+ case WDIOC_GETTIMELEFT: { -+ unsigned long flags; -+ int remaining = 0; -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ remaining = ubi32_wdt_remaining(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ return put_user(remaining, p); -+ } -+ -+ default: -+ return -ENOTTY; -+ } -+} -+ -+/* -+ * ubi32_wdt_notify_sys() -+ * Notification callback function for system events. -+ * -+ * Turn off the watchdog during a SYS_DOWN or SYS_HALT. -+ */ -+static int ubi32_wdt_notify_sys(struct notifier_block *this, -+ unsigned long code, void *unused) -+{ -+ if (code == SYS_DOWN || code == SYS_HALT) { -+ unsigned long flags; -+ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_stop(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ } -+ -+ return NOTIFY_DONE; -+} -+ -+#ifdef CONFIG_PM -+static int state_before_suspend; -+ -+/* -+ * ubi32_wdt_suspend() -+ * suspend the watchdog -+ * -+ * Remember if the watchdog was running and stop it. -+ */ -+static int ubi32_wdt_suspend(struct platform_device *pdev, pm_message_t state) -+{ -+ unsigned long flags; -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ state_before_suspend = ubi32_wdt_running(); -+ ubi32_wdt_stop(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_resume() -+ * Resume the watchdog -+ * -+ * If the watchdog was running, turn it back on. -+ */ -+static int ubi32_wdt_resume(struct platform_device *pdev) -+{ -+ if (state_before_suspend) { -+ unsigned long flags; -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ubi32_wdt_set_timeout(timeout); -+ ubi32_wdt_start(); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ } -+ -+ return 0; -+} -+#else -+# define ubi32_wdt_suspend NULL -+# define ubi32_wdt_resume NULL -+#endif -+ -+static const struct file_operations ubi32_wdt_fops = { -+ .owner = THIS_MODULE, -+ .llseek = no_llseek, -+ .write = ubi32_wdt_write, -+ .unlocked_ioctl = ubi32_wdt_ioctl, -+ .open = ubi32_wdt_open, -+ .release = ubi32_wdt_release, -+}; -+ -+static struct miscdevice ubi32_wdt_miscdev = { -+ .minor = WATCHDOG_MINOR, -+ .name = "watchdog", -+ .fops = &ubi32_wdt_fops, -+}; -+ -+static struct watchdog_info ubi32_wdt_info = { -+ .identity = "Ubicom32 Watchdog", -+ .options = WDIOF_SETTIMEOUT | -+ WDIOF_KEEPALIVEPING | -+ WDIOF_MAGICCLOSE, -+}; -+ -+static struct notifier_block ubi32_wdt_notifier = { -+ .notifier_call = ubi32_wdt_notify_sys, -+}; -+ -+/* -+ * ubi32_wdt_probe() -+ * Probe/register the watchdog module -+ * -+ * Registers the misc device and notifier handler. Actual device -+ * initialization is handled by ubi32_wdt_open(). -+ */ -+static int __devinit ubi32_wdt_probe(struct platform_device *pdev) -+{ -+ int ret; -+ -+ ret = register_reboot_notifier(&ubi32_wdt_notifier); -+ if (ret) { -+ printk(KERN_ERR PFX -+ "cannot register reboot notifier (err=%d)\n", ret); -+ return ret; -+ } -+ -+ ret = misc_register(&ubi32_wdt_miscdev); -+ if (ret) { -+ printk(KERN_ERR PFX -+ "cannot register miscdev on minor=%d (err=%d)\n", -+ WATCHDOG_MINOR, ret); -+ unregister_reboot_notifier(&ubi32_wdt_notifier); -+ return ret; -+ } -+ -+ printk(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n", -+ timeout, nowayout); -+ -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_remove() -+ * Uninstall the module -+ * -+ * Unregisters the misc device and notifier handler. Actual device -+ * deinitialization is handled by ubi32_wdt_close(). -+ */ -+static int __devexit ubi32_wdt_remove(struct platform_device *pdev) -+{ -+ misc_deregister(&ubi32_wdt_miscdev); -+ unregister_reboot_notifier(&ubi32_wdt_notifier); -+ return 0; -+} -+ -+static struct platform_device *ubi32_wdt_device; -+ -+static struct platform_driver ubi32_wdt_driver = { -+ .probe = ubi32_wdt_probe, -+ .remove = __devexit_p(ubi32_wdt_remove), -+ .suspend = ubi32_wdt_suspend, -+ .resume = ubi32_wdt_resume, -+ .driver = { -+ .name = WATCHDOG_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+/* -+ * ubi32_wdt_init() -+ * Initialize the watchdog. -+ * -+ * Checks the module params and registers the platform device & driver. -+ * Real work is in the platform probe function. -+ */ -+static int __init ubi32_wdt_init(void) -+{ -+ unsigned long flags; -+ int ret; -+ -+ /* -+ * Check that the timeout value is within range -+ */ -+ spin_lock_irqsave(&ubi32_wdt_spinlock, flags); -+ ret = ubi32_wdt_set_timeout(timeout); -+ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags); -+ if (ret) { -+ return ret; -+ } -+ -+ /* -+ * Since this is an on-chip device and needs no board-specific -+ * resources, we'll handle all the platform device stuff here. -+ */ -+ ret = platform_driver_register(&ubi32_wdt_driver); -+ if (ret) { -+ printk(KERN_ERR PFX "unable to register driver\n"); -+ return ret; -+ } -+ -+ ubi32_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0); -+ if (IS_ERR(ubi32_wdt_device)) { -+ printk(KERN_ERR PFX "unable to register device\n"); -+ platform_driver_unregister(&ubi32_wdt_driver); -+ return PTR_ERR(ubi32_wdt_device); -+ } -+ -+ return 0; -+} -+ -+/* -+ * ubi32_wdt_exit() -+ * Deinitialize module -+ * -+ * Back out the platform device & driver steps. Real work is in the -+ * platform remove function. -+ */ -+static void __exit ubi32_wdt_exit(void) -+{ -+ platform_device_unregister(ubi32_wdt_device); -+ platform_driver_unregister(&ubi32_wdt_driver); -+} -+ -+module_init(ubi32_wdt_init); -+module_exit(ubi32_wdt_exit); -+ -+MODULE_AUTHOR("Sol Kavy<sol@ubicom.com>"); -+MODULE_DESCRIPTION("Ubicom32 Watchdog Device Driver"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -+ -+module_param(timeout, uint, 0); -+MODULE_PARM_DESC(timeout, -+ "Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=" -+ __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); -+ -+module_param(nowayout, int, 0); -+MODULE_PARM_DESC(nowayout, -+ "Watchdog cannot be stopped once started (default=" -+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); ---- a/fs/binfmt_flat.c -+++ b/fs/binfmt_flat.c -@@ -54,6 +54,10 @@ - #define DBG_FLT(a...) - #endif - -+#ifndef ARCH_FLAT_ALIGN -+#define ARCH_FLAT_ALIGN 0 -+#endif -+ - #define RELOC_FAILED 0xff00ff01 /* Relocation incorrect somewhere */ - #define UNLOADED_LIB 0x7ff000ff /* Placeholder for unused library */ - -@@ -127,10 +131,10 @@ static unsigned long create_flat_tables( - --sp; put_user((unsigned long) argv, sp); - } - -- put_user(argc,--sp); -+ --sp; put_user(argc,sp); - current->mm->arg_start = (unsigned long) p; - while (argc-->0) { -- put_user((unsigned long) p, argv++); -+ put_user((unsigned long) p, argv); argv++; - do { - get_user(dummy, p); p++; - } while (dummy); -@@ -425,6 +429,7 @@ static int load_flat_file(struct linux_b - loff_t fpos; - unsigned long start_code, end_code; - int ret; -+ int flush_happened = 0; - - hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */ - inode = bprm->file->f_path.dentry->d_inode; -@@ -510,6 +515,7 @@ static int load_flat_file(struct linux_b - - /* OK, This is the point of no return */ - set_personality(PER_LINUX_32BIT); -+ flush_happened = 1; - } - - /* -@@ -524,6 +530,12 @@ static int load_flat_file(struct linux_b - * it all together. - */ - if ((flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP)) == 0) { -+ -+#ifdef ARCH_FLAT_ALIGN_TEXT -+ printk("Unable to mmap rom with ARCH alignment requirements\n"); -+ ret = -ENOEXEC; -+ goto err; -+#endif - /* - * this should give us a ROM ptr, but if it doesn't we don't - * really care -@@ -542,7 +554,7 @@ static int load_flat_file(struct linux_b - goto err; - } - -- len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); -+ len = data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN); - down_write(¤t->mm->mmap_sem); - realdatastart = do_mmap(0, 0, len, - PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0); -@@ -565,7 +577,7 @@ static int load_flat_file(struct linux_b - ret = realdatastart; - goto err; - } -- datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long); -+ datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN); - - DBG_FLT("BINFMT_FLAT: Allocated data+bss+stack (%d bytes): %x\n", - (int)(data_len + bss_len + stack_len), (int)datapos); -@@ -594,7 +606,11 @@ static int load_flat_file(struct linux_b - - } else { - -- len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); -+ len = text_len + data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN); -+#ifdef ARCH_FLAT_ALIGN_TEXT -+ /* Reserve space for the text alignment. */ -+ len += ARCH_FLAT_ALIGN; -+#endif - down_write(¤t->mm->mmap_sem); - textpos = do_mmap(0, 0, len, - PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0); -@@ -617,11 +633,14 @@ static int load_flat_file(struct linux_b - goto err; - } - -+ memp = textpos; -+#ifdef ARCH_FLAT_ALIGN_TEXT -+ textpos = ALIGN(textpos + sizeof(struct flat_hdr), ARCH_FLAT_ALIGN) - sizeof(struct flat_hdr); -+#endif - realdatastart = textpos + ntohl(hdr->data_start); -- datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long); -+ datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN); - reloc = (unsigned long *) (textpos + ntohl(hdr->reloc_start) + -- MAX_SHARED_LIBS * sizeof(unsigned long)); -- memp = textpos; -+ ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN)); - - #ifdef CONFIG_BINFMT_ZFLAT - /* -@@ -657,7 +676,7 @@ static int load_flat_file(struct linux_b - } - if (result >= (unsigned long)-4096) { - printk("Unable to read code+data+bss, errno %d\n",(int)-result); -- do_munmap(current->mm, textpos, text_len + data_len + extra + -+ do_munmap(current->mm, memp, text_len + data_len + extra + - MAX_SHARED_LIBS * sizeof(unsigned long)); - ret = result; - goto err; -@@ -670,6 +689,9 @@ static int load_flat_file(struct linux_b - - /* The main program needs a little extra setup in the task structure */ - start_code = textpos + sizeof (struct flat_hdr); -+#ifdef ARCH_FLAT_ALIGN_TEXT -+ BUG_ON(ALIGN(start_code, ARCH_FLAT_ALIGN) != start_code); -+#endif - end_code = textpos + text_len; - if (id == 0) { - current->mm->start_code = start_code; -@@ -796,6 +818,13 @@ static int load_flat_file(struct linux_b - - return 0; - err: -+ if (flush_happened) { -+ /* -+ * The parent process has already started running. We cannot allow the child to return back to user space -+ * as this child is still uning the parent stack and 2 will clobber each other. We are going to kill this child. -+ */ -+ do_exit(SIGTERM); -+ } - return ret; - } - ---- a/fs/Kconfig.binfmt -+++ b/fs/Kconfig.binfmt -@@ -30,7 +30,7 @@ config COMPAT_BINFMT_ELF - config BINFMT_ELF_FDPIC - bool "Kernel support for FDPIC ELF binaries" - default y -- depends on (FRV || BLACKFIN || (SUPERH32 && !MMU)) -+ depends on (FRV || BLACKFIN || (SUPERH32 && !MMU) || UBICOM32) - help - ELF FDPIC binaries are based on ELF, but allow the individual load - segments of a binary to be located in memory independently of each ---- a/include/asm-generic/dma-mapping.h -+++ b/include/asm-generic/dma-mapping.h -@@ -255,7 +255,7 @@ dma_sync_sg_for_device(struct device *de - } - - static inline int --dma_error(dma_addr_t dma_addr) -+dma_mapping_error(struct device *dev, dma_addr_t dma_addr) - { - return 0; - } ---- a/include/linux/elf-em.h -+++ b/include/linux/elf-em.h -@@ -41,6 +41,7 @@ - * up with a final number. - */ - #define EM_ALPHA 0x9026 -+#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */ - - /* Bogus old v850 magic number, used by old tools. */ - #define EM_CYGNUS_V850 0x9080 ---- a/include/linux/oprofile.h -+++ b/include/linux/oprofile.h -@@ -100,6 +100,8 @@ void oprofile_add_sample(struct pt_regs - */ - void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, - unsigned long event, int is_kernel); -+void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs, -+ unsigned long event, int is_kernel, int cpu); - - /* Use this instead when the PC value is not from the regs. Doesn't - * backtrace. */ ---- a/include/linux/serial_core.h -+++ b/include/linux/serial_core.h -@@ -158,6 +158,9 @@ - /* SH-SCI */ - #define PORT_SCIFA 83 - -+/* Ubicom32 */ -+#define PORT_UBI32_UARTTIO 84 -+ - #ifdef __KERNEL__ - - #include <linux/compiler.h> ---- a/kernel/module.c -+++ b/kernel/module.c -@@ -2624,6 +2624,9 @@ static int m_show(struct seq_file *m, vo - /* Used by oprofile and other similar tools. */ - seq_printf(m, " 0x%p", mod->module_core); - -+#ifdef ARCH_PROC_MODULES_EXTRA -+ ARCH_PROC_MODULES_EXTRA(m, mod); -+#endif - /* Taints info */ - if (mod->taints) - seq_printf(m, " %s", module_flags(mod, buf)); ---- a/kernel/sched_clock.c -+++ b/kernel/sched_clock.c -@@ -37,7 +37,7 @@ - */ - unsigned long long __attribute__((weak)) sched_clock(void) - { -- return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ); -+ return (get_jiffies_64() - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ); - } - - static __read_mostly int sched_clock_running; ---- a/lib/Kconfig.debug -+++ b/lib/Kconfig.debug -@@ -549,7 +549,7 @@ config FRAME_POINTER - bool "Compile the kernel with frame pointers" - depends on DEBUG_KERNEL && \ - (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \ -- AVR32 || SUPERH || BLACKFIN || MN10300) -+ AVR32 || SUPERH || BLACKFIN || MN10300 || UBICOM32) - default y if DEBUG_INFO && UML - help - If you say Y here the resulting kernel image will be slightly larger ---- a/mm/Makefile -+++ b/mm/Makefile -@@ -34,3 +34,5 @@ obj-$(CONFIG_MIGRATION) += migrate.o - obj-$(CONFIG_SMP) += allocpercpu.o - obj-$(CONFIG_QUICKLIST) += quicklist.o - obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o page_cgroup.o -+ -+CFLAGS_slab.o := $(PROFILING) -O2 ---- a/scripts/mod/file2alias.c -+++ b/scripts/mod/file2alias.c -@@ -753,6 +753,15 @@ void handle_moddevtable(struct module *m - + sym->st_value; - } - -+ /* -+ * somehow our gcc is not generating st_size correctly and set 0 for some symbols. -+ * and 0 size will break do_table since it adjust size to (size - id_size) -+ * this is to make sure st_size fall in range. -+ */ -+ if (sym->st_size == 0 || sym->st_size > info->sechdrs[sym->st_shndx].sh_size) { -+ sym->st_size = info->sechdrs[sym->st_shndx].sh_size; -+ } -+ - if (sym_is(symname, "__mod_pci_device_table")) - do_table(symval, sym->st_size, - sizeof(struct pci_device_id), "pci", ---- a/sound/Kconfig -+++ b/sound/Kconfig -@@ -80,6 +80,8 @@ source "sound/parisc/Kconfig" - - source "sound/soc/Kconfig" - -+source "sound/ubicom32/Kconfig" -+ - endif # SND - - menuconfig SOUND_PRIME ---- a/sound/Makefile -+++ b/sound/Makefile -@@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmw - obj-$(CONFIG_SOUND_PRIME) += oss/ - obj-$(CONFIG_DMASOUND) += oss/ - obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \ -- sparc/ spi/ parisc/ pcmcia/ mips/ soc/ -+ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ ubicom32/ - obj-$(CONFIG_SND_AOA) += aoa/ - - # This one must be compilable even if sound is configured out ---- /dev/null -+++ b/sound/ubicom32/Kconfig -@@ -0,0 +1,36 @@ -+# ALSA Ubicom32 drivers -+ -+menuconfig SND_UBI32 -+ tristate "Ubicom32 sound devices" -+ select SND_PCM -+ default n -+ help -+ Say Y here to include support for audio on the Ubicom32 platform. -+ To compile this driver as a module, say M here: the module will be -+ called snd_ubi32. -+ -+if SND_UBI32 -+ -+config SND_UBI32_AUDIO_GENERIC -+ bool "Generic Codec Support" -+ default n -+ help -+ Generic codecs -+ -+comment "I2C Based Codecs" -+ -+config SND_UBI32_AUDIO_CS4350 -+ bool "Cirrus Logic CS4350 DAC" -+ depends on I2C -+ default n -+ help -+ Support for the Cirrus Logic CS4350 DAC. -+ -+config SND_UBI32_AUDIO_CS4384 -+ bool "Cirrus Logic CS4384 DAC" -+ depends on I2C -+ default n -+ help -+ Support for the Cirrus Logic CS4384 DAC. -+ -+endif #SND_UBI32 ---- /dev/null -+++ b/sound/ubicom32/Makefile -@@ -0,0 +1,39 @@ -+# -+# sound/ubicom32/Makefile -+# Makefile for ALSA -+# -+# (C) Copyright 2009, Ubicom, Inc. -+# -+# This file is part of the Ubicom32 Linux Kernel Port. -+# -+# The Ubicom32 Linux Kernel Port is free software: you can redistribute -+# it and/or modify it under the terms of the GNU General Public License -+# as published by the Free Software Foundation, either version 2 of the -+# License, or (at your option) any later version. -+# -+# The Ubicom32 Linux Kernel Port is distributed in the hope that it -+# will be useful, but WITHOUT ANY WARRANTY; without even the implied -+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+# the GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with the Ubicom32 Linux Kernel Port. If not, -+# see <http://www.gnu.org/licenses/>. -+# -+# Ubicom32 implementation derived from (with many thanks): -+# arch/m68knommu -+# arch/blackfin -+# arch/parisc -+# -+ -+CFLAGS_ubi32.o += -O2 -+snd-ubi32-pcm-objs := ubi32-pcm.o -+snd-ubi32-generic-objs := ubi32-generic.o -+snd-ubi32-cs4350-objs := ubi32-cs4350.o -+snd-ubi32-cs4384-objs := ubi32-cs4384.o -+ -+# Toplevel Module Dependency -+obj-$(CONFIG_SND_UBI32) += snd-ubi32-pcm.o -+obj-$(CONFIG_SND_UBI32_AUDIO_GENERIC) += snd-ubi32-generic.o -+obj-$(CONFIG_SND_UBI32_AUDIO_CS4350) += snd-ubi32-cs4350.o -+obj-$(CONFIG_SND_UBI32_AUDIO_CS4384) += snd-ubi32-cs4384.o ---- /dev/null -+++ b/sound/ubicom32/ubi32-cs4350.c -@@ -0,0 +1,286 @@ -+/* -+ * sound/ubicom32/ubi32-cs4350.c -+ * Interface to ubicom32 virtual audio peripheral - using CS4350 DAC -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/i2c.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <sound/core.h> -+#include <sound/pcm.h> -+#include <sound/initval.h> -+#include "ubi32.h" -+ -+#define DRIVER_NAME "snd-ubi32-cs4350" -+ -+/* -+ * Module properties -+ */ -+static const struct i2c_device_id snd_ubi32_cs4350_id[] = { -+ {"cs4350", 0 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(i2c, ubicom32audio_id); -+ -+static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ -+ -+/* -+ * snd_ubi32_cs4350_free -+ * Card private data free function -+ */ -+void snd_ubi32_cs4350_free(struct snd_card *card) -+{ -+ //struct ubi32_snd_priv *ubi32_priv = card->private_data; -+ -+ /* -+ * Free all the fields in the snd_ubi32_priv struct -+ */ -+ // Nothing to free at this time because ubi32_priv just maintains pointers -+} -+ -+/* -+ * snd_ubi32_cs4350_dac_init -+ */ -+static int snd_ubi32_cs4350_dac_init(struct i2c_client *client, const struct i2c_device_id *id) -+{ -+ int ret; -+ char send[2]; -+ char recv[8]; -+ -+ /* -+ * Initialize the CS4350 DAC over the I2C interface -+ */ -+ snd_printk(KERN_INFO "Initializing CS4350 DAC\n"); -+ -+ /* -+ * Register 0x01: device/revid -+ */ -+ send[0] = 0x01; -+ ret = i2c_master_send(client, send, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed 1st attempt to write to CS4350 register 0x01\n"); -+ goto fail; -+ } -+ ret = i2c_master_recv(client, recv, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed initial read of CS4350 registers\n"); -+ goto fail; -+ } -+ snd_printk(KERN_INFO "CS4350 DAC Device/Rev: %08x\n", recv[0]); -+ -+ /* -+ * Register 0x02: Mode control -+ * I2S DIF[2:0] = 001, no De-Emphasis, Auto speed mode -+ */ -+ send[0] = 0x02; -+ send[1] = 0x10; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set CS4350 to I2S mode\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 0x05/0x06: Volume control -+ * Channel A volume set to -16 dB -+ * Channel B volume set to -16 dB -+ */ -+ send[0] = 0x05; -+ send[1] = 0x00; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n"); -+ goto fail; -+ } -+ -+ send[0] = 0x06; -+ send[1] = 0x00; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n"); -+ goto fail; -+ } -+ -+ /* -+ * Make sure the changes took place, this helps verify we are talking to -+ * the correct chip. -+ */ -+ send[0] = 0x81; -+ ret = i2c_master_send(client, send, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed to initiate readback\n"); -+ goto fail; -+ } -+ -+ ret = i2c_master_recv(client, recv, 8); -+ if (ret != 8) { -+ snd_printk(KERN_ERR "Failed second read of CS4350 registers\n"); -+ goto fail; -+ } -+ -+ if ((recv[1] != 0x10) || (recv[4] != 0x00) || (recv[5] != 0x00)) { -+ snd_printk(KERN_ERR "Failed to initialize CS4350 DAC\n"); -+ goto fail; -+ } -+ -+ snd_printk(KERN_INFO "CS4350 DAC Initialized\n"); -+ return 0; -+ -+fail: -+ return -ENODEV; -+} -+ -+/* -+ * snd_ubi32_cs4350_i2c_probe -+ */ -+static int snd_ubi32_cs4350_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ int err, ret; -+ struct platform_device *pdev; -+ -+ pdev = client->dev.platform_data; -+ if (!pdev) { -+ return -ENODEV; -+ } -+ -+ /* -+ * Initialize the CS4350 DAC -+ */ -+ ret = snd_ubi32_cs4350_dac_init(client, id); -+ if (ret < 0) { -+ /* -+ * Initialization failed. Propagate the error. -+ */ -+ return ret; -+ } -+ -+ /* -+ * Create a snd_card structure -+ */ -+ card = snd_card_new(index, "Ubi32-CS4350", THIS_MODULE, sizeof(struct ubi32_snd_priv)); -+ if (card == NULL) { -+ return -ENOMEM; -+ } -+ -+ card->private_free = snd_ubi32_cs4350_free; /* Not sure if correct */ -+ ubi32_priv = card->private_data; -+ -+ /* -+ * CS4350 DAC has a minimum sample rate of 30khz and an -+ * upper limit of 216khz for it's auto-detect. -+ */ -+ ubi32_priv->min_sample_rate = 30000; -+ ubi32_priv->max_sample_rate = 216000; -+ -+ /* -+ * Initialize the snd_card's private data structure -+ */ -+ ubi32_priv->card = card; -+ -+ /* -+ * Create the new PCM instance -+ */ -+ err = snd_ubi32_pcm_probe(ubi32_priv, pdev); -+ if (err < 0) { -+ snd_card_free(card); -+ return err; /* What is err? Need to include correct file */ -+ } -+ -+ strcpy(card->driver, "Ubi32-CS4350"); -+ strcpy(card->shortname, "Ubi32-CS4350"); -+ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq); -+ -+ snd_card_set_dev(card, &client->dev); -+ -+ /* -+ * Register the sound card -+ */ -+ if ((err = snd_card_register(card)) != 0) { -+ snd_printk(KERN_INFO "snd_card_register error\n"); -+ } -+ -+ /* -+ * Store card for access from other methods -+ */ -+ i2c_set_clientdata(client, card); -+ -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4350_i2c_remove -+ */ -+static int __devexit snd_ubi32_cs4350_i2c_remove(struct i2c_client *client) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ -+ card = i2c_get_clientdata(client); -+ -+ ubi32_priv = card->private_data; -+ snd_ubi32_pcm_remove(ubi32_priv); -+ -+ snd_card_free(i2c_get_clientdata(client)); -+ i2c_set_clientdata(client, NULL); -+ -+ return 0; -+} -+ -+/* -+ * I2C driver description -+ */ -+static struct i2c_driver snd_ubi32_cs4350_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .id_table = snd_ubi32_cs4350_id, -+ .probe = snd_ubi32_cs4350_i2c_probe, -+ .remove = __devexit_p(snd_ubi32_cs4350_i2c_remove), -+}; -+ -+/* -+ * Driver init -+ */ -+static int __init snd_ubi32_cs4350_init(void) -+{ -+ return i2c_add_driver(&snd_ubi32_cs4350_driver); -+} -+module_init(snd_ubi32_cs4350_init); -+ -+/* -+ * snd_ubi32_cs4350_exit -+ */ -+static void __exit snd_ubi32_cs4350_exit(void) -+{ -+ i2c_del_driver(&snd_ubi32_cs4350_driver); -+} -+module_exit(snd_ubi32_cs4350_exit); -+ -+/* -+ * Module properties -+ */ -+MODULE_ALIAS("i2c:" DRIVER_NAME); -+MODULE_AUTHOR("Patrick Tjin"); -+MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4350"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/sound/ubicom32/ubi32-cs4384.c -@@ -0,0 +1,982 @@ -+/* -+ * sound/ubicom32/ubi32-cs4384.c -+ * Interface to ubicom32 virtual audio peripheral - using CS4384 DAC -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/i2c.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/delay.h> -+#include <sound/core.h> -+#include <sound/tlv.h> -+#include <sound/control.h> -+#include <sound/pcm.h> -+#include <sound/initval.h> -+#include <asm/ip5000.h> -+#include <asm/gpio.h> -+#include <asm/audio_tio.h> -+#include <asm/ubi32-cs4384.h> -+#include "ubi32.h" -+ -+#define DRIVER_NAME "snd-ubi32-cs4384" -+ -+/* -+ * Module properties -+ */ -+static const struct i2c_device_id snd_ubi32_cs4384_id[] = { -+ {"cs4384", 0 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(i2c, ubicom32audio_id); -+ -+static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ -+ -+/* -+ * Mixer properties -+ */ -+enum { -+ /* -+ * Be careful of changing the order of these IDs, they -+ * are used to index the volume array. -+ */ -+ SND_UBI32_CS4384_FRONT_ID, -+ SND_UBI32_CS4384_SURROUND_ID, -+ SND_UBI32_CS4384_CENTER_ID, -+ SND_UBI32_CS4384_LFE_ID, -+ SND_UBI32_CS4384_REAR_ID, -+ -+ /* -+ * This should be the last ID -+ */ -+ SND_UBI32_CS4384_LAST_ID, -+}; -+static const u8_t snd_ubi32_cs4384_ch_ofs[] = {0, 2, 4, 5, 6}; -+ -+static const DECLARE_TLV_DB_SCALE(snd_ubi32_cs4384_db, -12750, 50, 0); -+ -+#define snd_ubi32_cs4384_info_mute snd_ctl_boolean_stereo_info -+#define snd_ubi32_cs4384_info_mute_mono snd_ctl_boolean_mono_info -+ -+/* -+ * Mixer controls -+ */ -+static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); -+static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -+static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -+static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -+static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -+ -+/* -+ * Make sure to update these if the structure below is changed -+ */ -+#define SND_UBI32_MUTE_CTL_START 5 -+#define SND_UBI32_MUTE_CTL_END 9 -+static struct snd_kcontrol_new snd_ubi32_cs4384_controls[] __devinitdata = { -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Front Playback Volume", -+ .info = snd_ubi32_cs4384_info_volume, -+ .get = snd_ubi32_cs4384_get_volume, -+ .put = snd_ubi32_cs4384_put_volume, -+ .private_value = SND_UBI32_CS4384_FRONT_ID, -+ .tlv = { -+ .p = snd_ubi32_cs4384_db, -+ }, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Surround Playback Volume", -+ .info = snd_ubi32_cs4384_info_volume, -+ .get = snd_ubi32_cs4384_get_volume, -+ .put = snd_ubi32_cs4384_put_volume, -+ .private_value = SND_UBI32_CS4384_SURROUND_ID, -+ .tlv = { -+ .p = snd_ubi32_cs4384_db, -+ }, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Center Playback Volume", -+ .info = snd_ubi32_cs4384_info_volume, -+ .get = snd_ubi32_cs4384_get_volume, -+ .put = snd_ubi32_cs4384_put_volume, -+ .private_value = SND_UBI32_CS4384_CENTER_ID, -+ .tlv = { -+ .p = snd_ubi32_cs4384_db, -+ }, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "LFE Playback Volume", -+ .info = snd_ubi32_cs4384_info_volume, -+ .get = snd_ubi32_cs4384_get_volume, -+ .put = snd_ubi32_cs4384_put_volume, -+ .private_value = SND_UBI32_CS4384_LFE_ID, -+ .tlv = { -+ .p = snd_ubi32_cs4384_db, -+ }, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Rear Playback Volume", -+ .info = snd_ubi32_cs4384_info_volume, -+ .get = snd_ubi32_cs4384_get_volume, -+ .put = snd_ubi32_cs4384_put_volume, -+ .private_value = SND_UBI32_CS4384_REAR_ID, -+ .tlv = { -+ .p = snd_ubi32_cs4384_db, -+ }, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Front Playback Switch", -+ .info = snd_ubi32_cs4384_info_mute, -+ .get = snd_ubi32_cs4384_get_mute, -+ .put = snd_ubi32_cs4384_put_mute, -+ .private_value = SND_UBI32_CS4384_FRONT_ID, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Surround Playback Switch", -+ .info = snd_ubi32_cs4384_info_mute, -+ .get = snd_ubi32_cs4384_get_mute, -+ .put = snd_ubi32_cs4384_put_mute, -+ .private_value = SND_UBI32_CS4384_SURROUND_ID, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Center Playback Switch", -+ .info = snd_ubi32_cs4384_info_mute_mono, -+ .get = snd_ubi32_cs4384_get_mute, -+ .put = snd_ubi32_cs4384_put_mute, -+ .private_value = SND_UBI32_CS4384_CENTER_ID, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "LFE Playback Switch", -+ .info = snd_ubi32_cs4384_info_mute_mono, -+ .get = snd_ubi32_cs4384_get_mute, -+ .put = snd_ubi32_cs4384_put_mute, -+ .private_value = SND_UBI32_CS4384_LFE_ID, -+ }, -+ { -+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | -+ SNDRV_CTL_ELEM_ACCESS_TLV_READ, -+ .name = "Rear Playback Switch", -+ .info = snd_ubi32_cs4384_info_mute, -+ .get = snd_ubi32_cs4384_get_mute, -+ .put = snd_ubi32_cs4384_put_mute, -+ .private_value = SND_UBI32_CS4384_REAR_ID, -+ }, -+}; -+ -+/* -+ * Our private data -+ */ -+struct snd_ubi32_cs4384_priv { -+ /* -+ * Array of current volumes -+ * (L, R, SL, SR, C, LFE, RL, RR) -+ */ -+ uint8_t volume[8]; -+ -+ /* -+ * Bitmask of mutes -+ * MSB (RR, RL, LFE, C, SR, SL, R, L) LSB -+ */ -+ uint8_t mute; -+ -+ /* -+ * Array of controls -+ */ -+ struct snd_kcontrol *kctls[ARRAY_SIZE(snd_ubi32_cs4384_controls)]; -+ -+ /* -+ * Lock to protect our card -+ */ -+ spinlock_t lock; -+}; -+ -+/* -+ * snd_ubi32_cs4384_info_volume -+ */ -+static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) -+{ -+ unsigned int id = (unsigned int)kcontrol->private_value; -+ -+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; -+ uinfo->count = 1; -+ if ((id != SND_UBI32_CS4384_LFE_ID) && -+ (id != SND_UBI32_CS4384_CENTER_ID)) { -+ uinfo->count = 2; -+ } -+ uinfo->value.integer.min = 0; -+ uinfo->value.integer.max = 255; -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_get_volume -+ */ -+static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -+{ -+ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ unsigned int id = (unsigned int)kcontrol->private_value; -+ int ch = snd_ubi32_cs4384_ch_ofs[id]; -+ unsigned long flags; -+ -+ if (id >= SND_UBI32_CS4384_LAST_ID) { -+ return -EINVAL; -+ } -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ -+ spin_lock_irqsave(&cs4384_priv->lock, flags); -+ -+ ucontrol->value.integer.value[0] = cs4384_priv->volume[ch]; -+ if ((id != SND_UBI32_CS4384_LFE_ID) && -+ (id != SND_UBI32_CS4384_CENTER_ID)) { -+ ch++; -+ ucontrol->value.integer.value[1] = cs4384_priv->volume[ch]; -+ } -+ -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_put_volume -+ */ -+static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -+{ -+ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); -+ struct i2c_client *client = (struct i2c_client *)priv->client; -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ unsigned int id = (unsigned int)kcontrol->private_value; -+ int ch = snd_ubi32_cs4384_ch_ofs[id]; -+ unsigned long flags; -+ unsigned char send[3]; -+ int nch; -+ int ret = -EINVAL; -+ -+ if (id >= SND_UBI32_CS4384_LAST_ID) { -+ return -EINVAL; -+ } -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ -+ spin_lock_irqsave(&cs4384_priv->lock, flags); -+ -+ send[0] = 0; -+ switch (id) { -+ case SND_UBI32_CS4384_REAR_ID: -+ send[0] = 0x06; -+ -+ /* -+ * Fall through -+ */ -+ -+ case SND_UBI32_CS4384_SURROUND_ID: -+ send[0] += 0x03; -+ -+ /* -+ * Fall through -+ */ -+ -+ case SND_UBI32_CS4384_FRONT_ID: -+ send[0] += 0x8B; -+ nch = 2; -+ send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF); -+ send[2] = 255 - (ucontrol->value.integer.value[1] & 0xFF); -+ cs4384_priv->volume[ch++] = send[1]; -+ cs4384_priv->volume[ch] = send[2]; -+ break; -+ -+ case SND_UBI32_CS4384_LFE_ID: -+ send[0] = 0x81; -+ -+ /* -+ * Fall through -+ */ -+ -+ case SND_UBI32_CS4384_CENTER_ID: -+ send[0] += 0x11; -+ nch = 1; -+ send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF); -+ cs4384_priv->volume[ch] = send[1]; -+ break; -+ -+ default: -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ goto done; -+ -+ } -+ -+ /* -+ * Send the volume to the chip -+ */ -+ nch++; -+ ret = i2c_master_send(client, send, nch); -+ if (ret != nch) { -+ snd_printk(KERN_ERR "Failed to set volume on CS4384\n"); -+ } -+ -+done: -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ -+ return ret; -+} -+ -+/* -+ * snd_ubi32_cs4384_get_mute -+ */ -+static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -+{ -+ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ unsigned int id = (unsigned int)kcontrol->private_value; -+ int ch = snd_ubi32_cs4384_ch_ofs[id]; -+ unsigned long flags; -+ -+ if (id >= SND_UBI32_CS4384_LAST_ID) { -+ return -EINVAL; -+ } -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ -+ spin_lock_irqsave(&cs4384_priv->lock, flags); -+ -+ ucontrol->value.integer.value[0] = !(cs4384_priv->mute & (1 << ch)); -+ -+ if ((id != SND_UBI32_CS4384_LFE_ID) && -+ (id != SND_UBI32_CS4384_CENTER_ID)) { -+ ch++; -+ ucontrol->value.integer.value[1] = !(cs4384_priv->mute & (1 << ch)); -+ } -+ -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_put_mute -+ */ -+static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -+{ -+ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); -+ struct i2c_client *client = (struct i2c_client *)priv->client; -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ unsigned int id = (unsigned int)kcontrol->private_value; -+ int ch = snd_ubi32_cs4384_ch_ofs[id]; -+ unsigned long flags; -+ unsigned char send[2]; -+ int ret = -EINVAL; -+ -+ if (id >= SND_UBI32_CS4384_LAST_ID) { -+ return -EINVAL; -+ } -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ -+ spin_lock_irqsave(&cs4384_priv->lock, flags); -+ -+ if (ucontrol->value.integer.value[0]) { -+ cs4384_priv->mute &= ~(1 << ch); -+ } else { -+ cs4384_priv->mute |= (1 << ch); -+ } -+ -+ if ((id != SND_UBI32_CS4384_LFE_ID) && (id != SND_UBI32_CS4384_CENTER_ID)) { -+ ch++; -+ if (ucontrol->value.integer.value[1]) { -+ cs4384_priv->mute &= ~(1 << ch); -+ } else { -+ cs4384_priv->mute |= (1 << ch); -+ } -+ } -+ -+ /* -+ * Update the chip's mute reigster -+ */ -+ send[0] = 0x09; -+ send[1] = cs4384_priv->mute; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set mute on CS4384\n"); -+ } -+ -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ -+ return ret; -+} -+ -+/* -+ * snd_ubi32_cs4384_mixer -+ * Setup the mixer controls -+ */ -+static int __devinit snd_ubi32_cs4384_mixer(struct ubi32_snd_priv *priv) -+{ -+ struct snd_card *card = priv->card; -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ int i; -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ for (i = 0; i < ARRAY_SIZE(snd_ubi32_cs4384_controls); i++) { -+ int err; -+ -+ cs4384_priv->kctls[i] = snd_ctl_new1(&snd_ubi32_cs4384_controls[i], priv); -+ err = snd_ctl_add(card, cs4384_priv->kctls[i]); -+ if (err) { -+ snd_printk(KERN_WARNING "Failed to add control %d\n", i); -+ return err; -+ } -+ } -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_free -+ * Card private data free function -+ */ -+void snd_ubi32_cs4384_free(struct snd_card *card) -+{ -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ struct ubi32_snd_priv *ubi32_priv; -+ -+ ubi32_priv = card->private_data; -+ cs4384_priv = snd_ubi32_priv_get_drv(ubi32_priv); -+ if (cs4384_priv) { -+ kfree(cs4384_priv); -+ } -+} -+ -+/* -+ * snd_ubi32_cs4384_setup_mclk -+ */ -+static int snd_ubi32_cs4384_setup_mclk(struct ubi32_cs4384_platform_data *pdata) -+{ -+ struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA; -+ struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC; -+ struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH; -+ unsigned int ctl0; -+ unsigned int ctlx; -+ unsigned int div; -+ -+ div = pdata->mclk_entries[0].div; -+ -+ ctl0 = (1 << 13); -+ ctlx = ((div - 1) << 16) | (div / 2); -+ -+ switch (pdata->mclk_src) { -+ case UBI32_CS4384_MCLK_PWM_0: -+ ioc->function |= 2; -+ ioc->ctl0 |= ctl0; -+ ioc->ctl1 = ctlx; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_PWM_1: -+ ioc->function |= 2; -+ ioc->ctl0 |= ctl0 << 16; -+ ioc->ctl2 = ctlx; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_PWM_2: -+ ioh->ctl0 |= ctl0; -+ ioh->ctl1 = ctlx; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_CLKDIV_1: -+ ioa->gpio_mask &= (1 << 7); -+ ioa->ctl1 &= ~(0x7F << 14); -+ ioa->ctl1 |= ((div - 1) << 14); -+ return 0; -+ -+ case UBI32_CS4384_MCLK_OTHER: -+ return 0; -+ } -+ -+ return 1; -+} -+ -+/* -+ * snd_ubi32_cs4384_set_rate -+ */ -+static int snd_ubi32_cs4384_set_rate(struct ubi32_snd_priv *priv, int rate) -+{ -+ struct ubi32_cs4384_platform_data *cpd = priv->pdata->priv_data; -+ struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA; -+ struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC; -+ struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH; -+ unsigned int ctl; -+ unsigned int div = 0; -+ const u16_t mult[] = {64, 96, 128, 192, 256, 384, 512, 768, 1024}; -+ int i; -+ int j; -+ -+ -+ for (i = 0; i < sizeof(mult) / sizeof(u16_t); i++) { -+ for (j = 0; j < cpd->n_mclk; j++) { -+ if (((unsigned int)rate * (unsigned int)mult[i]) == -+ cpd->mclk_entries[j].rate) { -+ div = cpd->mclk_entries[j].div; -+ break; -+ } -+ } -+ } -+ -+ ctl = ((div - 1) << 16) | (div / 2); -+ -+ switch (cpd->mclk_src) { -+ case UBI32_CS4384_MCLK_PWM_0: -+ ioc->ctl1 = ctl; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_PWM_1: -+ ioc->ctl2 = ctl; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_PWM_2: -+ ioh->ctl1 = ctl; -+ return 0; -+ -+ case UBI32_CS4384_MCLK_CLKDIV_1: -+ ioa->ctl1 &= ~(0x7F << 14); -+ ioa->ctl1 |= ((div - 1) << 14); -+ return 0; -+ -+ case UBI32_CS4384_MCLK_OTHER: -+ return 0; -+ } -+ -+ return 1; -+} -+ -+/* -+ * snd_ubi32_cs4384_set_channels -+ * Mute unused channels -+ */ -+static int snd_ubi32_cs4384_set_channels(struct ubi32_snd_priv *priv, int channels) -+{ -+ struct i2c_client *client = (struct i2c_client *)priv->client; -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ unsigned char send[2]; -+ int ret; -+ int i; -+ unsigned long flags; -+ -+ /* -+ * Only support 0, 2, 4, 6, 8 channels -+ */ -+ if ((channels > 8) || (channels & 1)) { -+ return -EINVAL; -+ } -+ -+ cs4384_priv = snd_ubi32_priv_get_drv(priv); -+ spin_lock_irqsave(&cs4384_priv->lock, flags); -+ -+ /* -+ * Address 09h, Mute control -+ */ -+ send[0] = 0x09; -+ send[1] = (unsigned char)(0xFF << channels); -+ -+ ret = i2c_master_send(client, send, 2); -+ -+ spin_unlock_irqrestore(&cs4384_priv->lock, flags); -+ -+ /* -+ * Notify the system that we changed the mutes -+ */ -+ cs4384_priv->mute = (unsigned char)(0xFF << channels); -+ -+ for (i = SND_UBI32_MUTE_CTL_START; i < SND_UBI32_MUTE_CTL_END; i++) { -+ snd_ctl_notify(priv->card, SNDRV_CTL_EVENT_MASK_VALUE, -+ &cs4384_priv->kctls[i]->id); -+ } -+ -+ if (ret != 2) { -+ return -ENXIO; -+ } -+ -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_dac_init -+ */ -+static int snd_ubi32_cs4384_dac_init(struct i2c_client *client, const struct i2c_device_id *id) -+{ -+ int ret; -+ unsigned char send[2]; -+ unsigned char recv[2]; -+ -+ /* -+ * Initialize the CS4384 DAC over the I2C interface -+ */ -+ snd_printk(KERN_INFO "Initializing CS4384 DAC\n"); -+ -+ /* -+ * Register 0x01: device/revid -+ */ -+ send[0] = 0x01; -+ ret = i2c_master_send(client, send, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed 1st attempt to write to CS4384 register 0x01\n"); -+ goto fail; -+ } -+ ret = i2c_master_recv(client, recv, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed initial read of CS4384 registers\n"); -+ goto fail; -+ } -+ snd_printk(KERN_INFO "CS4384 DAC Device/Rev: %08x\n", recv[0]); -+ -+ /* -+ * Register 0x02: Mode Control 1 -+ * Control Port Enable, PCM, All DACs enabled, Power Down -+ */ -+ send[0] = 0x02; -+ send[1] = 0x81; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set CPEN CS4384\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 0x08: Ramp and Mute -+ * RMP_UP, RMP_DN, PAMUTE, DAMUTE -+ */ -+ send[0] = 0x08; -+ send[1] = 0xBC; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set CPEN CS4384\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 0x03: PCM Control -+ * I2S DIF[3:0] = 0001, no De-Emphasis, Auto speed mode -+ */ -+ send[0] = 0x03; -+ send[1] = 0x13; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to set CS4384 to I2S mode\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 0x0B/0x0C: Volume control A1/B1 -+ * Register 0x0E/0x0F: Volume control A2/B2 -+ * Register 0x11/0x12: Volume control A3/B3 -+ * Register 0x14/0x15: Volume control A4/B4 -+ */ -+ send[0] = 0x80 | 0x0B; -+ send[1] = 0x00; -+ send[2] = 0x00; -+ ret = i2c_master_send(client, send, 3); -+ if (ret != 3) { -+ snd_printk(KERN_ERR "Failed to set ch1 volume on CS4384\n"); -+ goto fail; -+ } -+ -+ send[0] = 0x80 | 0x0E; -+ send[1] = 0x00; -+ send[2] = 0x00; -+ ret = i2c_master_send(client, send, 3); -+ if (ret != 3) { -+ snd_printk(KERN_ERR "Failed to set ch2 volume on CS4384\n"); -+ goto fail; -+ } -+ -+ send[0] = 0x80 | 0x11; -+ send[1] = 0x00; -+ send[2] = 0x00; -+ ret = i2c_master_send(client, send, 3); -+ if (ret != 3) { -+ snd_printk(KERN_ERR "Failed to set ch3 volume on CS4384\n"); -+ goto fail; -+ } -+ -+ send[0] = 0x80 | 0x14; -+ send[1] = 0x00; -+ send[2] = 0x00; -+ ret = i2c_master_send(client, send, 3); -+ if (ret != 3) { -+ snd_printk(KERN_ERR "Failed to set ch4 volume on CS4384\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 09h: Mute control -+ * Mute all (we will unmute channels as needed) -+ */ -+ send[0] = 0x09; -+ send[1] = 0xFF; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to power up CS4384\n"); -+ goto fail; -+ } -+ -+ /* -+ * Register 0x02: Mode Control 1 -+ * Control Port Enable, PCM, All DACs enabled, Power Up -+ */ -+ send[0] = 0x02; -+ send[1] = 0x80; -+ ret = i2c_master_send(client, send, 2); -+ if (ret != 2) { -+ snd_printk(KERN_ERR "Failed to power up CS4384\n"); -+ goto fail; -+ } -+ -+ /* -+ * Make sure the changes took place, this helps verify we are talking to -+ * the correct chip. -+ */ -+ send[0] = 0x80 | 0x03; -+ ret = i2c_master_send(client, send, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed to initiate readback\n"); -+ goto fail; -+ } -+ -+ ret = i2c_master_recv(client, recv, 1); -+ if (ret != 1) { -+ snd_printk(KERN_ERR "Failed second read of CS4384 registers\n"); -+ goto fail; -+ } -+ -+ if (recv[0] != 0x13) { -+ snd_printk(KERN_ERR "Failed to initialize CS4384 DAC\n"); -+ goto fail; -+ } -+ -+ snd_printk(KERN_INFO "CS4384 DAC Initialized\n"); -+ return 0; -+ -+fail: -+ return -ENODEV; -+} -+ -+/* -+ * snd_ubi32_cs4384_i2c_probe -+ */ -+static int snd_ubi32_cs4384_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ int err, ret; -+ struct platform_device *pdev; -+ struct ubi32_cs4384_platform_data *pdata; -+ struct snd_ubi32_cs4384_priv *cs4384_priv; -+ -+ /* -+ * pdev is audio_tio -+ */ -+ pdev = client->dev.platform_data; -+ if (!pdev) { -+ return -ENODEV; -+ } -+ -+ /* -+ * pdev->dev.platform_data is ubi32-pcm platform_data -+ */ -+ pdata = audio_tio_priv(pdev); -+ if (!pdata) { -+ return -ENODEV; -+ } -+ -+ /* -+ * Initialize the CS4384 DAC -+ */ -+ ret = snd_ubi32_cs4384_dac_init(client, id); -+ if (ret < 0) { -+ /* -+ * Initialization failed. Propagate the error. -+ */ -+ return ret; -+ } -+ -+ if (snd_ubi32_cs4384_setup_mclk(pdata)) { -+ return -EINVAL; -+ } -+ -+ /* -+ * Create a snd_card structure -+ */ -+ card = snd_card_new(index, "Ubi32-CS4384", THIS_MODULE, sizeof(struct ubi32_snd_priv)); -+ if (card == NULL) { -+ return -ENOMEM; -+ } -+ -+ card->private_free = snd_ubi32_cs4384_free; -+ ubi32_priv = card->private_data; -+ -+ /* -+ * Initialize the snd_card's private data structure -+ */ -+ ubi32_priv->card = card; -+ ubi32_priv->client = client; -+ ubi32_priv->set_channels = snd_ubi32_cs4384_set_channels; -+ ubi32_priv->set_rate = snd_ubi32_cs4384_set_rate; -+ -+ /* -+ * CS4384 DAC has a minimum sample rate of 4khz and an -+ * upper limit of 216khz for it's auto-detect. -+ */ -+ ubi32_priv->min_sample_rate = 4000; -+ ubi32_priv->max_sample_rate = 216000; -+ -+ /* -+ * Create our private data (to manage volume, etc) -+ */ -+ cs4384_priv = kzalloc(sizeof(struct snd_ubi32_cs4384_priv), GFP_KERNEL); -+ if (!cs4384_priv) { -+ snd_card_free(card); -+ return -ENOMEM; -+ } -+ snd_ubi32_priv_set_drv(ubi32_priv, cs4384_priv); -+ spin_lock_init(&cs4384_priv->lock); -+ -+ /* -+ * We start off all muted and max volume -+ */ -+ cs4384_priv->mute = 0xFF; -+ memset(cs4384_priv->volume, 0xFF, 8); -+ -+ /* -+ * Create the new PCM instance -+ */ -+ err = snd_ubi32_pcm_probe(ubi32_priv, pdev); -+ if (err < 0) { -+ snd_card_free(card); -+ return err; /* What is err? Need to include correct file */ -+ } -+ -+ strcpy(card->driver, "Ubi32-CS4384"); -+ strcpy(card->shortname, "Ubi32-CS4384"); -+ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq); -+ -+ snd_card_set_dev(card, &client->dev); -+ -+ /* -+ * Set up the mixer -+ */ -+ snd_ubi32_cs4384_mixer(ubi32_priv); -+ -+ /* -+ * Register the sound card -+ */ -+ if ((err = snd_card_register(card)) != 0) { -+ snd_printk(KERN_INFO "snd_card_register error\n"); -+ } -+ -+ /* -+ * Store card for access from other methods -+ */ -+ i2c_set_clientdata(client, card); -+ -+ return 0; -+} -+ -+/* -+ * snd_ubi32_cs4384_i2c_remove -+ */ -+static int __devexit snd_ubi32_cs4384_i2c_remove(struct i2c_client *client) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ -+ card = i2c_get_clientdata(client); -+ -+ ubi32_priv = card->private_data; -+ snd_ubi32_pcm_remove(ubi32_priv); -+ -+ snd_card_free(i2c_get_clientdata(client)); -+ i2c_set_clientdata(client, NULL); -+ -+ return 0; -+} -+ -+/* -+ * I2C driver description -+ */ -+static struct i2c_driver snd_ubi32_cs4384_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .id_table = snd_ubi32_cs4384_id, -+ .probe = snd_ubi32_cs4384_i2c_probe, -+ .remove = __devexit_p(snd_ubi32_cs4384_i2c_remove), -+}; -+ -+/* -+ * Driver init -+ */ -+static int __init snd_ubi32_cs4384_init(void) -+{ -+ return i2c_add_driver(&snd_ubi32_cs4384_driver); -+} -+module_init(snd_ubi32_cs4384_init); -+ -+/* -+ * snd_ubi32_cs4384_exit -+ */ -+static void __exit snd_ubi32_cs4384_exit(void) -+{ -+ i2c_del_driver(&snd_ubi32_cs4384_driver); -+} -+module_exit(snd_ubi32_cs4384_exit); -+ -+/* -+ * Module properties -+ */ -+MODULE_ALIAS("i2c:" DRIVER_NAME); -+MODULE_AUTHOR("Patrick Tjin"); -+MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4384"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/sound/ubicom32/ubi32-generic.c -@@ -0,0 +1,165 @@ -+/* -+ * sound/ubicom32/ubi32-generic.c -+ * Interface to ubicom32 virtual audio peripheral -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/platform_device.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <sound/core.h> -+#include <sound/pcm.h> -+#include <sound/initval.h> -+#include "ubi32.h" -+ -+#define DRIVER_NAME "snd-ubi32-generic" -+ -+/* -+ * Module properties -+ */ -+static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ -+ -+/* -+ * Card private data free function -+ */ -+void snd_ubi32_generic_free(struct snd_card *card) -+{ -+ //struct ubi32_snd_priv *ubi32_priv = card->private_data; -+ -+ /* -+ * Free all the fields in the snd_ubi32_priv struct -+ */ -+ // Nothing to free at this time because ubi32_priv just maintains pointers -+} -+ -+/* -+ * Ubicom audio driver probe() method. Args change depending on whether we use -+ * platform_device or i2c_device. -+ */ -+static int snd_ubi32_generic_probe(struct platform_device *dev) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ int err; -+ -+ /* -+ * Create a snd_card structure -+ */ -+ card = snd_card_new(index, "Ubi32-Generic", THIS_MODULE, sizeof(struct ubi32_snd_priv)); -+ -+ if (card == NULL) { -+ return -ENOMEM; -+ } -+ -+ card->private_free = snd_ubi32_generic_free; /* Not sure if correct */ -+ ubi32_priv = card->private_data; -+ -+ /* -+ * Initialize the snd_card's private data structure -+ */ -+ ubi32_priv->card = card; -+ -+ /* -+ * Create the new PCM instance -+ */ -+ err = snd_ubi32_pcm_probe(ubi32_priv, dev); -+ if (err < 0) { -+ snd_card_free(card); -+ return err; -+ } -+ -+ strcpy(card->driver, "Ubi32-Generic"); -+ strcpy(card->shortname, "Ubi32-Generic"); -+ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq); -+ -+ snd_card_set_dev(card, &dev->dev); -+ -+ /* Register the sound card */ -+ if ((err = snd_card_register(card)) != 0) { -+ snd_printk(KERN_INFO "snd_card_register error\n"); -+ } -+ -+ /* Store card for access from other methods */ -+ platform_set_drvdata(dev, card); -+ -+ return 0; -+} -+ -+/* -+ * Ubicom audio driver remove() method -+ */ -+static int __devexit snd_ubi32_generic_remove(struct platform_device *dev) -+{ -+ struct snd_card *card; -+ struct ubi32_snd_priv *ubi32_priv; -+ -+ card = platform_get_drvdata(dev); -+ ubi32_priv = card->private_data; -+ snd_ubi32_pcm_remove(ubi32_priv); -+ -+ snd_card_free(platform_get_drvdata(dev)); -+ platform_set_drvdata(dev, NULL); -+ return 0; -+} -+ -+/* -+ * Platform driver definition -+ */ -+static struct platform_driver snd_ubi32_generic_driver = { -+ .driver = { -+ .name = DRIVER_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = snd_ubi32_generic_probe, -+ .remove = __devexit_p(snd_ubi32_generic_remove), -+}; -+ -+/* -+ * snd_ubi32_generic_init -+ */ -+static int __init snd_ubi32_generic_init(void) -+{ -+ return platform_driver_register(&snd_ubi32_generic_driver); -+} -+module_init(snd_ubi32_generic_init); -+ -+/* -+ * snd_ubi32_generic_exit -+ */ -+static void __exit snd_ubi32_generic_exit(void) -+{ -+ platform_driver_unregister(&snd_ubi32_generic_driver); -+} -+module_exit(snd_ubi32_generic_exit); -+ -+/* -+ * Module properties -+ */ -+//#if defined(CONFIG_SND_UBI32_AUDIO_I2C) -+//MODULE_ALIAS("i2c:snd-ubi32"); -+//#endif -+MODULE_AUTHOR("Aaron Jow, Patrick Tjin"); -+MODULE_DESCRIPTION("Driver for Ubicom32 audio devices"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/sound/ubicom32/ubi32.h -@@ -0,0 +1,96 @@ -+/* -+ * sound/ubicom32/ubi32.h -+ * Common header file for all ubi32- sound drivers -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ */ -+ -+#ifndef _UBI32_H -+#define _UBI32_H -+ -+#define SND_UBI32_DEBUG 0 // Debug flag -+ -+#include <linux/platform_device.h> -+#include <asm/devtree.h> -+#include <asm/audio_tio.h> -+#include <asm/ubi32-pcm.h> -+ -+struct ubi32_snd_priv; -+ -+typedef int (*set_channels_t)(struct ubi32_snd_priv *priv, int channels); -+typedef int (*set_rate_t)(struct ubi32_snd_priv *priv, int rate); -+ -+struct ubi32_snd_priv { -+ /* -+ * Any variables that are needed locally here but NOT in -+ * the VP itself should go in here. -+ */ -+ struct snd_card *card; -+ struct snd_pcm *pcm; -+ -+ /* -+ * DAC parameters. These are the parameters for the specific -+ * DAC we are driving. The I2S component can run at a range -+ * of frequencies, but the DAC may be limited. We may want -+ * to make this an array of some sort in the future? -+ * -+ * min/max_sample_rate if set to 0 are ignored. -+ */ -+ int max_sample_rate; -+ int min_sample_rate; -+ -+ /* -+ * The size a period (group) of audio samples. The VP does -+ * not need to know this; each DMA transfer is made to be -+ * one period. -+ */ -+ u32_t period_size; -+ -+ spinlock_t ubi32_lock; -+ -+ struct audiotioregs *regs; -+ u8 tx_irq; -+ u8 rx_irq; -+ -+ void *client; -+ -+ /* -+ * Operations which the base DAC driver can implement -+ */ -+ set_channels_t set_channels; -+ set_rate_t set_rate; -+ -+ /* -+ * platform data -+ */ -+ struct ubi32pcm_platform_data *pdata; -+ -+ /* -+ * Private driver data (used for DAC driver control, etc) -+ */ -+ void *drvdata; -+}; -+ -+#define snd_ubi32_priv_get_drv(priv) ((priv)->drvdata) -+#define snd_ubi32_priv_set_drv(priv, data) (((priv)->drvdata) = (void *)(data)) -+ -+extern int snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev); -+extern void snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv); -+ -+#endif ---- /dev/null -+++ b/sound/ubicom32/ubi32-pcm.c -@@ -0,0 +1,680 @@ -+/* -+ * sound/ubicom32/ubi32-pcm.c -+ * Interface to ubicom32 virtual audio peripheral -+ * -+ * (C) Copyright 2009, Ubicom, Inc. -+ * -+ * This file is part of the Ubicom32 Linux Kernel Port. -+ * -+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute -+ * it and/or modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation, either version 2 of the -+ * License, or (at your option) any later version. -+ * -+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it -+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied -+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -+ * the GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with the Ubicom32 Linux Kernel Port. If not, -+ * see <http://www.gnu.org/licenses/>. -+ * -+ * Ubicom32 implementation derived from (with many thanks): -+ * arch/m68knommu -+ * arch/blackfin -+ * arch/parisc -+ */ -+ -+#include <linux/interrupt.h> -+#include <sound/core.h> -+#include <sound/pcm.h> -+#include <sound/pcm_params.h> -+#include <asm/ip5000.h> -+#include <asm/ubi32-pcm.h> -+#include <linux/dma-mapping.h> -+#include <linux/delay.h> -+#include "ubi32.h" -+ -+struct ubi32_snd_runtime_data { -+ dma_addr_t dma_buffer; /* Physical address of DMA buffer */ -+ dma_addr_t dma_buffer_end; /* First address beyond end of DMA buffer */ -+ size_t period_size; -+ dma_addr_t period_ptr; /* Physical address of next period */ -+ unsigned int flags; -+}; -+ -+static void snd_ubi32_vp_int_set(struct snd_pcm *pcm) -+{ -+ struct ubi32_snd_priv *ubi32_priv = pcm->private_data; -+ ubicom32_set_interrupt(ubi32_priv->tx_irq); -+} -+ -+static snd_pcm_uframes_t snd_ubi32_playback_pointer(struct snd_pcm_substream *substream) -+{ -+ struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream); -+ struct audiotioregs *regs = ubi32_priv->regs; -+ struct snd_pcm_runtime *runtime = substream->runtime; -+ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ -+ dma_addr_t read_pos; -+ -+ snd_pcm_uframes_t frames; -+ if (!regs->current_read_pos) { -+ /* -+ * If current_read_pos is NULL (e.g. right after the HW is started or -+ * when the HW is stopped), then handle this case separately. -+ */ -+ return 0; -+ } -+ -+ read_pos = (dma_addr_t)regs->current_read_pos; -+ frames = bytes_to_frames(runtime, read_pos - ubi32_rd->dma_buffer); -+ if (frames == runtime->buffer_size) { -+ frames = 0; -+ } -+ return frames; -+} -+ -+/* -+ * Audio trigger -+ */ -+static int snd_ubi32_playback_trigger(struct snd_pcm_substream *substream, int cmd) -+{ -+ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data; -+ struct audiotioregs *regs = ubi32_priv->regs; -+ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ int ret = 0; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_trigger cmd=%d=", cmd); -+#endif -+ -+ if (regs->command != UBI32_AUDIO_CMD_NONE) { -+ snd_printk(KERN_WARNING "Can't send command to audio device at this time\n"); -+ // Set a timer to call this function back later. How to do this? -+ return 0; -+ } -+ -+ /* -+ * Set interrupt flag to indicate that we interrupted audio device -+ * to send a command -+ */ -+ //regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ -+ switch (cmd) { -+ case SNDRV_PCM_TRIGGER_START: -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "START\n"); -+#endif -+ /* -+ * Ready the DMA transfer -+ */ -+ ubi32_rd->period_ptr = ubi32_rd->dma_buffer; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "trigger period_ptr=%lx\n", (unsigned long)ubi32_rd->period_ptr); -+#endif -+ regs->playback_xfer_requests[0].ptr = (void *)ubi32_rd->period_ptr; -+ regs->playback_xfer_requests[0].ctr = ubi32_rd->period_size; -+ regs->playback_xfer_requests[0].active = 1; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "xfer_request 0 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size); -+#endif -+ -+ ubi32_rd->period_ptr += ubi32_rd->period_size; -+ regs->playback_xfer_requests[1].ptr = (void *)ubi32_rd->period_ptr; -+ regs->playback_xfer_requests[1].ctr = ubi32_rd->period_size; -+ regs->playback_xfer_requests[1].active = 1; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "xfer_request 1 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size); -+#endif -+ -+ /* -+ * Tell the VP that we want to begin playback by filling in the -+ * command field and then interrupting the audio VP -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_START; -+ snd_ubi32_vp_int_set(substream->pcm); -+ break; -+ -+ case SNDRV_PCM_TRIGGER_STOP: -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "STOP\n"); -+#endif -+ -+ /* -+ * Tell the VP that we want to stop playback by filling in the -+ * command field and then interrupting the audio VP -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_STOP; -+ snd_ubi32_vp_int_set(substream->pcm); -+ break; -+ -+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH: -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "PAUSE_PUSH\n"); -+#endif -+ -+ /* -+ * Tell the VP that we want to pause playback by filling in the -+ * command field and then interrupting the audio VP -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_PAUSE; -+ snd_ubi32_vp_int_set(substream->pcm); -+ break; -+ -+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "PAUSE_RELEASE\n"); -+#endif -+ /* -+ * Tell the VP that we want to resume paused playback by filling -+ * in the command field and then interrupting the audio VP -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_RESUME; -+ snd_ubi32_vp_int_set(substream->pcm); -+ break; -+ -+ default: -+ snd_printk(KERN_WARNING "Unhandled trigger\n"); -+ ret = -EINVAL; -+ break; -+ } -+ -+ return ret; -+} -+ -+/* -+ * Prepare to transfer an audio stream to the codec -+ */ -+static int snd_ubi32_playback_prepare(struct snd_pcm_substream *substream) -+{ -+ /* -+ * Configure registers and setup the runtime instance for DMA transfers -+ */ -+ //struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data; -+ struct audiotioregs *regs = ubi32_priv->regs; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_prepare: sending STOP command to audio device\n"); -+#endif -+ -+ /* -+ * Make sure the audio device is stopped -+ */ -+ -+ /* -+ * Set interrupt flag to indicate that we interrupted audio device -+ * to send a command -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_STOP; -+ snd_ubi32_vp_int_set(substream->pcm); -+ -+ return 0; -+} -+ -+/* -+ * Allocate DMA buffers from preallocated memory. -+ * Preallocation was done in snd_ubi32_pcm_new() -+ */ -+static int snd_ubi32_playback_hw_params(struct snd_pcm_substream *substream, -+ struct snd_pcm_hw_params *hw_params) -+{ -+ struct snd_pcm_runtime *runtime = substream->runtime; -+ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data; -+ struct audiotioregs *regs = ubi32_priv->regs; -+ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ -+ /* -+ * Use pre-allocated memory from ubi32_snd_pcm_new() to satisfy -+ * this memory request. -+ */ -+ int ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_hw_params\n"); -+#endif -+ -+ if (!(regs->channel_mask & (1 << params_channels(hw_params)))) { -+ snd_printk(KERN_INFO "snd_ubi32_playback_hw_params unsupported number of channels %d mask %08x\n", params_channels(hw_params), regs->channel_mask); -+ return -EINVAL; -+ } -+ -+ if (ubi32_priv->set_channels) { -+ int ret = ubi32_priv->set_channels(ubi32_priv, params_channels(hw_params)); -+ if (ret) { -+ snd_printk(KERN_WARNING "Unable to set channels to %d, ret=%d\n", params_channels(hw_params), ret); -+ return ret; -+ } -+ } -+ -+ if (ubi32_priv->set_rate) { -+ int ret = ubi32_priv->set_rate(ubi32_priv, params_rate(hw_params)); -+ if (ret) { -+ snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret); -+ return ret; -+ } -+ } -+ -+ if (ubi32_priv->pdata->set_rate) { -+ int ret = ubi32_priv->pdata->set_rate(ubi32_priv->pdata->appdata, params_rate(hw_params)); -+ if (ret) { -+ snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret); -+ return ret; -+ } -+ } -+ -+ if (regs->command != UBI32_AUDIO_CMD_NONE) { -+ snd_printk(KERN_WARNING "snd_ubi32_playback_hw_params: tio busy\n"); -+ return -EAGAIN; -+ } -+ -+ if (params_format(hw_params) == SNDRV_PCM_FORMAT_S16_LE) { -+ regs->flags |= UBI32_CMD_SETUP_FLAG_LE; -+ } else { -+ regs->flags &= ~UBI32_CMD_SETUP_FLAG_LE; -+ } -+ regs->channels = params_channels(hw_params); -+ regs->sample_rate = params_rate(hw_params); -+ regs->command = UBI32_AUDIO_CMD_SETUP; -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ snd_ubi32_vp_int_set(substream->pcm); -+ -+ /* -+ * Wait for the command to complete -+ */ -+ while (regs->command != UBI32_AUDIO_CMD_NONE) { -+ udelay(1); -+ } -+ -+ //snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); -+ //runtime->dma_bytes = params_buffer_bytes(hw_params); -+ -+ /* -+ * Put the DMA info into the DMA descriptor that we will -+ * use to do transfers to our audio VP "hardware" -+ */ -+ -+ /* -+ * Mark both DMA transfers as not ready/inactive -+ */ -+ regs->playback_xfer_requests[0].active = 0; -+ regs->playback_xfer_requests[1].active = 0; -+ -+ /* -+ * Put the location of the buffer into the runtime data instance -+ */ -+ ubi32_rd->dma_buffer = (dma_addr_t)runtime->dma_area; -+ ubi32_rd->dma_buffer_end = (dma_addr_t)(runtime->dma_area + runtime->dma_bytes); -+ -+ /* -+ * Get the period size -+ */ -+ ubi32_rd->period_size = params_period_bytes(hw_params); -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "DMA for ubi32 audio initialized dma_area=0x%x dma_bytes=%d, period_size=%d\n", (unsigned int)runtime->dma_area, (unsigned int)runtime->dma_bytes, ubi32_rd->period_size); -+ snd_printk(KERN_INFO "Private buffer ubi32_rd: dma_buffer=0x%x dma_buffer_end=0x%x\n", ubi32_rd->dma_buffer, ubi32_rd->dma_buffer_end); -+#endif -+ -+ return ret; -+} -+ -+/* -+ * This is the reverse of snd_ubi32_playback_hw_params -+ */ -+static int snd_ubi32_playback_hw_free(struct snd_pcm_substream *substream) -+{ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_hw_free\n"); -+#endif -+ return snd_pcm_lib_free_pages(substream); -+} -+ -+/* -+ * Audio virtual peripheral capabilities -+ */ -+static struct snd_pcm_hardware snd_ubi32_playback_hw = -+{ -+ /* FILL IN THIS STRUCT WITH HW PARAMS SPECIFIC TO IPI2SOUT */ -+ // This is defined in include/sound/asound.h or -+ // include/sound/pcm.h -+ .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | -+ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), // NOT SURE ABOUT THIS -+ //.info = (SNDRV_PCM_INFO_INTERLEAVED | -+ // SNDRV_PCM_INFO_BLOCK_TRANSFER | -+ // SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | -+ // SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), -+ .buffer_bytes_max = (64*1024), // NOT SURE ABOUT THIS -+ .period_bytes_min = 64, -+ .period_bytes_max = 8184,//8184,//8176, -+ .periods_min = 2, -+ .periods_max = 255, // THIS WILL ALMOST CERTAINLY NEED TO BE CHANGED -+ .fifo_size = 0, // THIS IS IGNORED BY ALSA -+}; -+ -+/* -+ * We fill this in later -+ */ -+static struct snd_pcm_hw_constraint_list ubi32_playback_rates; -+ -+static int snd_ubi32_playback_close(struct snd_pcm_substream *substream) -+{ -+ /* Disable codec, stop DMA, free private data structures */ -+ //struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream); -+ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_close\n"); -+#endif -+ -+ substream->runtime->private_data = NULL; -+ -+ kfree(ubi32_rd); -+ -+ return 0; -+} -+ -+static int snd_ubi32_playback_open(struct snd_pcm_substream *substream) -+{ -+ //struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream); -+ struct snd_pcm_runtime *runtime = substream->runtime; -+ struct ubi32_snd_runtime_data *ubi32_rd; -+ int ret = 0; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "ubi32 playback open\n"); -+#endif -+ -+ /* Associate capabilities with component */ -+ runtime->hw = snd_ubi32_playback_hw; -+ -+ /* -+ * Inform ALSA about constraints of the audio device -+ */ -+ ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &ubi32_playback_rates); -+ if (ret < 0) { -+ snd_printk(KERN_INFO "invalid rate\n"); -+ goto out; -+ } -+ -+ /* Force the buffer size to be an integer multiple of period size */ -+ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); -+ if (ret < 0) { -+ snd_printk(KERN_INFO "invalid period\n"); -+ goto out; -+ } -+ /* Initialize structures/registers */ -+ ubi32_rd = kzalloc(sizeof(struct ubi32_snd_runtime_data), GFP_KERNEL); -+ if (ubi32_rd == NULL) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ -+ runtime->private_data = ubi32_rd; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_open returned 0\n"); -+#endif -+ -+ return 0; -+out: -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "snd_ubi32_playback_open returned %d\n", ret); -+#endif -+ -+ return ret; -+} -+ -+static struct snd_pcm_ops snd_ubi32_playback_ops = { -+ .open = snd_ubi32_playback_open, /* Open */ -+ .close = snd_ubi32_playback_close, /* Close */ -+ .ioctl = snd_pcm_lib_ioctl, /* Generic IOCTL handler */ -+ .hw_params = snd_ubi32_playback_hw_params, /* Hardware parameters/capabilities */ -+ .hw_free = snd_ubi32_playback_hw_free, /* Free function for hw_params */ -+ .prepare = snd_ubi32_playback_prepare, -+ .trigger = snd_ubi32_playback_trigger, -+ .pointer = snd_ubi32_playback_pointer, -+}; -+ -+/* -+ * Interrupt handler that gets called when the audio device -+ * interrupts Linux -+ */ -+static irqreturn_t snd_ubi32_pcm_interrupt(int irq, void *appdata) -+{ -+ struct snd_pcm *pcm = (struct snd_pcm *)appdata; -+ struct ubi32_snd_priv *ubi32_priv = pcm->private_data; -+ struct audiotioregs *regs = ubi32_priv->regs; -+ -+ // Only one substream exists because our VP does not mix -+ // streams. Therefore we don't have to search through -+ // substreams like the at91 driver does. -+ struct snd_pcm_substream *substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; -+ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data; -+ int dma_to_fill = 0; -+ -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "Ubi32 ALSA interrupt\n"); -+#endif -+ -+ if (!pcm) { -+ snd_printk(KERN_WARNING "pcm does not exist\n"); -+ return IRQ_HANDLED; -+ } -+ -+ if (ubi32_rd == NULL) { -+ snd_printk(KERN_WARNING "No runtime data\n"); -+ return IRQ_HANDLED; -+ } -+ // Check interrupt cause -+ if (0) { -+ // Handle the underflow case -+ } else if ((regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) || -+ (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST)) { -+ if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) { -+ dma_to_fill = 0; -+ regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST; -+ } else if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST) { -+ dma_to_fill = 1; -+ regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST; -+ } -+ ubi32_rd->period_ptr += ubi32_rd->period_size; -+ if (ubi32_rd->period_ptr >= ubi32_rd->dma_buffer_end) { -+ ubi32_rd->period_ptr = ubi32_rd->dma_buffer; -+ } -+ regs->playback_xfer_requests[dma_to_fill].ptr = (void *)ubi32_rd->period_ptr; -+ regs->playback_xfer_requests[dma_to_fill].ctr = ubi32_rd->period_size; -+ regs->playback_xfer_requests[dma_to_fill].active = 1; -+#if SND_UBI32_DEBUG -+ snd_printk(KERN_INFO "xfer_request %d ptr=0x%x ctr=%u\n", dma_to_fill, ubi32_rd->period_ptr, ubi32_rd->period_size); -+#endif -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_MORE_SAMPLES; -+ snd_ubi32_vp_int_set(substream->pcm); -+ } -+ // If we are interrupted by the VP, that means we completed -+ // processing one period of audio. We need to inform the upper -+ // layers of ALSA of this. -+ snd_pcm_period_elapsed(substream); -+ -+ return IRQ_HANDLED; -+} -+ -+void __devexit snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv) -+{ -+ struct snd_pcm *pcm = ubi32_priv->pcm; -+ free_irq(ubi32_priv->rx_irq, pcm); -+} -+ -+#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 -+#error "Change this table to match pcm.h" -+#endif -+static unsigned int rates[] __initdata = {5512, 8000, 11025, 16000, 22050, -+ 32000, 44100, 48000, 64000, 88200, -+ 96000, 176400, 192000}; -+ -+/* -+ * snd_ubi32_pcm_probe -+ */ -+int __devinit snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev) -+{ -+ struct snd_pcm *pcm; -+ int ret, err; -+ int i; -+ int j; -+ int nrates; -+ unsigned int rate_max = 0; -+ unsigned int rate_min = 0xFFFFFFFF; -+ unsigned int rate_mask = 0; -+ struct audiotioregs *regs; -+ struct resource *res_regs; -+ struct resource *res_irq_tx; -+ struct resource *res_irq_rx; -+ struct ubi32pcm_platform_data *pdata; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) { -+ return -ENODEV; -+ } -+ -+ /* -+ * Get our resources, regs is the hardware driver base address -+ * and the tx and rx irqs are used to communicate with the -+ * hardware driver. -+ */ -+ res_regs = platform_get_resource(pdev, IORESOURCE_MEM, AUDIOTIO_MEM_RESOURCE); -+ res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_TX_IRQ_RESOURCE); -+ res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_RX_IRQ_RESOURCE); -+ if (!res_regs || !res_irq_tx || !res_irq_rx) { -+ snd_printk(KERN_WARNING "Could not get resources"); -+ return -ENODEV; -+ } -+ -+ ubi32_priv->regs = (struct audiotioregs *)res_regs->start; -+ ubi32_priv->tx_irq = res_irq_tx->start; -+ ubi32_priv->rx_irq = res_irq_rx->start; -+ -+ /* -+ * Check the version -+ */ -+ regs = ubi32_priv->regs; -+ if (regs->version != AUDIOTIOREGS_VERSION) { -+ snd_printk(KERN_WARNING "This audiotioreg is not compatible with this driver\n"); -+ return -ENODEV; -+ } -+ -+ /* -+ * Find out the standard rates, also find max and min rates -+ */ -+ for (i = 0; i < ARRAY_SIZE(rates); i++) { -+ int found = 0; -+ for (j = 0; j < regs->n_sample_rates; j++) { -+ if (rates[i] == regs->sample_rates[j]) { -+ /* -+ * Check to see if it is supported by the dac -+ */ -+ if ((rates[i] >= ubi32_priv->min_sample_rate) && -+ (!ubi32_priv->max_sample_rate || -+ (ubi32_priv->max_sample_rate && (rates[i] <= ubi32_priv->max_sample_rate)))) { -+ found = 1; -+ rate_mask |= (1 << i); -+ nrates++; -+ if (rates[i] < rate_min) { -+ rate_min = rates[i]; -+ } -+ if (rates[i] > rate_max) { -+ rate_max = rates[i]; -+ } -+ break; -+ } -+ } -+ } -+ if (!found) { -+ rate_mask |= SNDRV_PCM_RATE_KNOT; -+ } -+ } -+ -+ snd_ubi32_playback_hw.rates = rate_mask; -+ snd_ubi32_playback_hw.rate_min = rate_min; -+ snd_ubi32_playback_hw.rate_max = rate_max; -+ ubi32_playback_rates.count = regs->n_sample_rates; -+ ubi32_playback_rates.list = regs->sample_rates; -+ ubi32_playback_rates.mask = 0; -+ -+ for (i = 0; i < 32; i++) { -+ if (regs->channel_mask & (1 << i)) { -+ if (!snd_ubi32_playback_hw.channels_min) { -+ snd_ubi32_playback_hw.channels_min = i; -+ } -+ snd_ubi32_playback_hw.channels_max = i; -+ } -+ } -+ snd_printk(KERN_INFO "Ubi32PCM: channels_min:%u channels_max:%u\n", -+ snd_ubi32_playback_hw.channels_min, -+ snd_ubi32_playback_hw.channels_max); -+ -+ if (regs->caps & AUDIOTIONODE_CAP_BE) { -+ snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_BE; -+ } -+ if (regs->caps & AUDIOTIONODE_CAP_LE) { -+ snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_LE; -+ } -+ snd_printk(KERN_INFO "Ubi32PCM: rates:%08x min:%u max:%u count:%d fmts:%016llx\n", -+ snd_ubi32_playback_hw.rates, -+ snd_ubi32_playback_hw.rate_min, -+ snd_ubi32_playback_hw.rate_max, -+ ubi32_playback_rates.count, -+ snd_ubi32_playback_hw.formats); -+ -+ ret = snd_pcm_new(ubi32_priv->card, "Ubi32 PCM", 0, 1, 0, &pcm); -+ if (ret < 0) { -+ return ret; -+ } -+ -+ pcm->private_data = ubi32_priv; -+ ubi32_priv->pcm = pcm; -+ ubi32_priv->pdata = pdata; -+ -+ pcm->info_flags = 0; // What is this for? Just copied from other drivers -+ -+ strcpy(pcm->name, "Ubi32-PCM"); -+ -+ // How do we allocate the buffer for non PCI devices? -+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, -+ snd_dma_continuous_data(GFP_KERNEL), -+ 45*1024, 64*1024); //NOT SURE ABOUT SIZE, CHECK LATER -+ -+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ubi32_playback_ops); -+ -+ /* -+ * Start up the TIO -+ */ -+ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND; -+ regs->command = UBI32_AUDIO_CMD_ENABLE; -+ snd_ubi32_vp_int_set(pcm); -+ -+ /* -+ * Request IRQ -+ */ -+ err = request_irq(ubi32_priv->rx_irq, snd_ubi32_pcm_interrupt, IRQF_DISABLED, pcm->name, pcm); -+ if (err) { -+ snd_printk(KERN_WARNING "request_irq failed: irq=%d err=%d\n", ubi32_priv->rx_irq, err); -+ return -ENODEV; -+ } -+ -+ return ret; -+ -+} ---- /dev/null -+++ b/arch/ubicom32/lib/ashldi3.c -@@ -0,0 +1,62 @@ -+/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */ -+/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. -+ -+This file is part of GNU CC. -+ -+GNU CC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 2, or (at your option) -+any later version. -+ -+GNU CC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GNU CC; see the file COPYING. If not, write to -+the Free Software Foundation, 59 Temple Place - Suite 330, -+Boston, MA 02111-1307, USA. */ -+ -+#define BITS_PER_UNIT 8 -+ -+typedef int SItype __attribute__ ((mode (SI))); -+typedef unsigned int USItype __attribute__ ((mode (SI))); -+typedef int DItype __attribute__ ((mode (DI))); -+typedef int word_type __attribute__ ((mode (__word__))); -+ -+struct DIstruct {SItype high, low;}; -+ -+typedef union -+{ -+ struct DIstruct s; -+ DItype ll; -+} DIunion; -+ -+DItype -+__ashldi3 (DItype u, word_type b) -+{ -+ DIunion w; -+ word_type bm; -+ DIunion uu; -+ -+ if (b == 0) -+ return u; -+ -+ uu.ll = u; -+ -+ bm = (sizeof (SItype) * BITS_PER_UNIT) - b; -+ if (bm <= 0) -+ { -+ w.s.low = 0; -+ w.s.high = (USItype)uu.s.low << -bm; -+ } -+ else -+ { -+ USItype carries = (USItype)uu.s.low >> bm; -+ w.s.low = (USItype)uu.s.low << b; -+ w.s.high = ((USItype)uu.s.high << b) | carries; -+ } -+ -+ return w.ll; -+} ---- /dev/null -+++ b/arch/ubicom32/lib/ashrdi3.c -@@ -0,0 +1,63 @@ -+/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. -+ -+This file is part of GNU CC. -+ -+GNU CC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 2, or (at your option) -+any later version. -+ -+GNU CC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GNU CC; see the file COPYING. If not, write to -+the Free Software Foundation, 59 Temple Place - Suite 330, -+Boston, MA 02111-1307, USA. */ -+ -+#define BITS_PER_UNIT 8 -+ -+typedef int SItype __attribute__ ((mode (SI))); -+typedef unsigned int USItype __attribute__ ((mode (SI))); -+typedef int DItype __attribute__ ((mode (DI))); -+typedef int word_type __attribute__ ((mode (__word__))); -+ -+struct DIstruct {SItype high, low;}; -+ -+typedef union -+{ -+ struct DIstruct s; -+ DItype ll; -+} DIunion; -+ -+DItype -+__ashrdi3 (DItype u, word_type b) -+{ -+ DIunion w; -+ word_type bm; -+ DIunion uu; -+ -+ if (b == 0) -+ return u; -+ -+ uu.ll = u; -+ -+ bm = (sizeof (SItype) * BITS_PER_UNIT) - b; -+ if (bm <= 0) -+ { -+ /* w.s.high = 1..1 or 0..0 */ -+ w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); -+ w.s.low = uu.s.high >> -bm; -+ } -+ else -+ { -+ USItype carries = (USItype)uu.s.high << bm; -+ w.s.high = uu.s.high >> b; -+ w.s.low = ((USItype)uu.s.low >> b) | carries; -+ } -+ -+ return w.ll; -+} ---- /dev/null -+++ b/arch/ubicom32/lib/divmod.c -@@ -0,0 +1,85 @@ -+unsigned long -+udivmodsi4(unsigned long num, unsigned long den, int modwanted) -+{ -+ unsigned long bit = 1; -+ unsigned long res = 0; -+ -+ while (den < num && bit && !(den & (1L<<31))) -+ { -+ den <<=1; -+ bit <<=1; -+ } -+ while (bit) -+ { -+ if (num >= den) -+ { -+ num -= den; -+ res |= bit; -+ } -+ bit >>=1; -+ den >>=1; -+ } -+ if (modwanted) return num; -+ return res; -+} -+ -+long -+__udivsi3 (long a, long b) -+{ -+ return udivmodsi4 (a, b, 0); -+} -+ -+long -+__umodsi3 (long a, long b) -+{ -+ return udivmodsi4 (a, b, 1); -+} -+ -+long -+__divsi3 (long a, long b) -+{ -+ int neg = 0; -+ long res; -+ -+ if (a < 0) -+ { -+ a = -a; -+ neg = !neg; -+ } -+ -+ if (b < 0) -+ { -+ b = -b; -+ neg = !neg; -+ } -+ -+ res = udivmodsi4 (a, b, 0); -+ -+ if (neg) -+ res = -res; -+ -+ return res; -+} -+ -+long -+__modsi3 (long a, long b) -+{ -+ int neg = 0; -+ long res; -+ -+ if (a < 0) -+ { -+ a = -a; -+ neg = 1; -+ } -+ -+ if (b < 0) -+ b = -b; -+ -+ res = udivmodsi4 (a, b, 1); -+ -+ if (neg) -+ res = -res; -+ -+ return res; -+} ---- /dev/null -+++ b/arch/ubicom32/lib/lshrdi3.c -@@ -0,0 +1,62 @@ -+/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. -+ -+This file is part of GNU CC. -+ -+GNU CC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 2, or (at your option) -+any later version. -+ -+GNU CC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GNU CC; see the file COPYING. If not, write to -+the Free Software Foundation, 59 Temple Place - Suite 330, -+Boston, MA 02111-1307, USA. */ -+ -+#define BITS_PER_UNIT 8 -+ -+typedef int SItype __attribute__ ((mode (SI))); -+typedef unsigned int USItype __attribute__ ((mode (SI))); -+typedef int DItype __attribute__ ((mode (DI))); -+typedef int word_type __attribute__ ((mode (__word__))); -+ -+struct DIstruct {SItype high, low;}; -+ -+typedef union -+{ -+ struct DIstruct s; -+ DItype ll; -+} DIunion; -+ -+DItype -+__lshrdi3 (DItype u, word_type b) -+{ -+ DIunion w; -+ word_type bm; -+ DIunion uu; -+ -+ if (b == 0) -+ return u; -+ -+ uu.ll = u; -+ -+ bm = (sizeof (SItype) * BITS_PER_UNIT) - b; -+ if (bm <= 0) -+ { -+ w.s.high = 0; -+ w.s.low = (USItype)uu.s.high >> -bm; -+ } -+ else -+ { -+ USItype carries = (USItype)uu.s.high << bm; -+ w.s.high = (USItype)uu.s.high >> b; -+ w.s.low = ((USItype)uu.s.low >> b) | carries; -+ } -+ -+ return w.ll; -+} ---- /dev/null -+++ b/arch/ubicom32/lib/muldi3.c -@@ -0,0 +1,87 @@ -+/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and -+ gcc-2.7.2.3/longlong.h which is: */ -+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. -+ -+This file is part of GNU CC. -+ -+GNU CC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 2, or (at your option) -+any later version. -+ -+GNU CC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GNU CC; see the file COPYING. If not, write to -+the Free Software Foundation, 59 Temple Place - Suite 330, -+Boston, MA 02111-1307, USA. */ -+ -+#define UWtype USItype -+#define UHWtype USItype -+#define W_TYPE_SIZE 32 -+#define __BITS4 (W_TYPE_SIZE / 4) -+#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) -+#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) -+#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) -+ -+#define umul_ppmm(w1, w0, u, v) \ -+ do { \ -+ UWtype __x0, __x1, __x2, __x3; \ -+ UHWtype __ul, __vl, __uh, __vh; \ -+ \ -+ __ul = __ll_lowpart (u); \ -+ __uh = __ll_highpart (u); \ -+ __vl = __ll_lowpart (v); \ -+ __vh = __ll_highpart (v); \ -+ \ -+ __x0 = (UWtype) __ul * __vl; \ -+ __x1 = (UWtype) __ul * __vh; \ -+ __x2 = (UWtype) __uh * __vl; \ -+ __x3 = (UWtype) __uh * __vh; \ -+ \ -+ __x1 += __ll_highpart (__x0);/* this can't give carry */ \ -+ __x1 += __x2; /* but this indeed can */ \ -+ if (__x1 < __x2) /* did we get it? */ \ -+ __x3 += __ll_B; /* yes, add it in the proper pos. */ \ -+ \ -+ (w1) = __x3 + __ll_highpart (__x1); \ -+ (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ -+ } while (0) -+ -+ -+#define __umulsidi3(u, v) \ -+ ({DIunion __w; \ -+ umul_ppmm (__w.s.high, __w.s.low, u, v); \ -+ __w.ll; }) -+ -+typedef int SItype __attribute__ ((mode (SI))); -+typedef unsigned int USItype __attribute__ ((mode (SI))); -+typedef int DItype __attribute__ ((mode (DI))); -+typedef int word_type __attribute__ ((mode (__word__))); -+ -+struct DIstruct {SItype high, low;}; -+ -+typedef union -+{ -+ struct DIstruct s; -+ DItype ll; -+} DIunion; -+ -+DItype -+__muldi3 (DItype u, DItype v) -+{ -+ DIunion w; -+ DIunion uu, vv; -+ -+ uu.ll = u, -+ vv.ll = v; -+ -+ w.ll = __umulsidi3 (uu.s.low, vv.s.low); -+ w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high -+ + (USItype) uu.s.high * (USItype) vv.s.low); -+ -+ return w.ll; -+} |