convert brcm-2.4 to the new target structure

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7092 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 854 deletions

diff --git a/target/linux/brcm-2.4/patches/004-flash.patch b/target/linux/brcm-2.4/patches/004-flash.patch
index de2d5b170f..91aa7e65c8 100644
--- a/target/linux/brcm-2.4/patches/004-flash.patch
+++ b/target/linux/brcm-2.4/patches/004-flash.patch
@@ -29,860 +29,6 @@ diff -urN linux.old/drivers/mtd/devices/Makefile linux.dev/drivers/mtd/devices/M
  obj-$(CONFIG_MTD_DOC1000)	+= doc1000.o
  obj-$(CONFIG_MTD_DOC2000)	+= doc2000.o
  obj-$(CONFIG_MTD_DOC2001)	+= doc2001.o
-diff -urN linux.old/drivers/mtd/devices/sflash.c linux.dev/drivers/mtd/devices/sflash.c
---- linux.old/drivers/mtd/devices/sflash.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/mtd/devices/sflash.c	2006-06-21 21:41:24.000000000 +0200
-@@ -0,0 +1,298 @@
-+/*
-+ * Broadcom SiliconBackplane chipcommon serial flash interface
-+ *
-+ * Copyright 2001-2003, Broadcom Corporation   
-+ * All Rights Reserved.   
-+ *    
-+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY   
-+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM   
-+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS   
-+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.   
-+ *
-+ * $Id: sflash.c,v 1.1.1.3 2003/11/10 17:43:38 hyin Exp $
-+ */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/slab.h>
-+#include <linux/ioport.h>
-+#include <linux/mtd/compatmac.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/errno.h>
-+#include <linux/pci.h>
-+#include <linux/delay.h>
-+#include <asm/io.h>
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/minix_fs.h>
-+#include <linux/ext2_fs.h>
-+#include <linux/romfs_fs.h>
-+#include <linux/cramfs_fs.h>
-+#include <linux/jffs2.h>
-+#endif
-+
-+#include <typedefs.h>
-+#include <bcmdevs.h>
-+#include <bcmutils.h>
-+#include <osl.h>
-+#include <bcmutils.h>
-+#include <bcmnvram.h>
-+#include <sbconfig.h>
-+#include <sbchipc.h>
-+#include <sflash.h>
-+#include <trxhdr.h>
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size);
-+#endif
-+
-+struct sflash_mtd {
-+	chipcregs_t *cc;
-+	struct semaphore lock;
-+	struct mtd_info mtd;
-+	struct mtd_erase_region_info regions[1];
-+};
-+
-+/* Private global state */
-+static struct sflash_mtd sflash;
-+
-+static int
-+sflash_mtd_poll(struct sflash_mtd *sflash, unsigned int offset, int timeout)
-+{
-+	int now = jiffies;
-+	int ret = 0;
-+
-+	for (;;) {
-+		if (!sflash_poll(sflash->cc, offset)) {
-+			ret = 0;
-+			break;
-+		}
-+		if (time_after(jiffies, now + timeout)) {
-+			printk(KERN_ERR "sflash: timeout\n");
-+			ret = -ETIMEDOUT;
-+			break;
-+		}
-+		if (current->need_resched) {
-+			set_current_state(TASK_UNINTERRUPTIBLE);
-+			schedule_timeout(timeout / 10);
-+		} else
-+			udelay(1);
-+	}
-+
-+	return ret;
-+}
-+
-+static int
-+sflash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
-+{
-+	struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
-+	int bytes, ret = 0;
-+
-+	/* Check address range */
-+	if (!len)
-+		return 0;
-+	if ((from + len) > mtd->size)
-+		return -EINVAL;
-+	
-+	down(&sflash->lock);
-+
-+	*retlen = 0;
-+	while (len) {
-+		if ((bytes = sflash_read(sflash->cc, (uint) from, len, buf)) < 0) {
-+			ret = bytes;
-+			break;
-+		}
-+		from += (loff_t) bytes;
-+		len -= bytes;
-+		buf += bytes;
-+		*retlen += bytes;
-+	}
-+
-+	up(&sflash->lock);
-+
-+	return ret;
-+}
-+
-+static int
-+sflash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
-+{
-+	struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
-+	int bytes, ret = 0;
-+
-+	/* Check address range */
-+	if (!len)
-+		return 0;
-+	if ((to + len) > mtd->size)
-+		return -EINVAL;
-+
-+	down(&sflash->lock);
-+
-+	*retlen = 0;
-+	while (len) {
-+		if ((bytes = sflash_write(sflash->cc, (uint) to, len, buf)) < 0) {
-+			ret = bytes;
-+			break;
-+		}
-+		if ((ret = sflash_mtd_poll(sflash, (unsigned int) to, HZ / 10)))
-+			break;
-+		to += (loff_t) bytes;
-+		len -= bytes;
-+		buf += bytes;
-+		*retlen += bytes;
-+	}
-+
-+	up(&sflash->lock);
-+
-+	return ret;
-+}
-+
-+static int
-+sflash_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
-+{
-+	struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
-+	int i, j, ret = 0;
-+	unsigned int addr, len;
-+
-+	/* Check address range */
-+	if (!erase->len)
-+		return 0;
-+	if ((erase->addr + erase->len) > mtd->size)
-+		return -EINVAL;
-+
-+	addr = erase->addr;
-+	len = erase->len;
-+
-+	down(&sflash->lock);
-+
-+	/* Ensure that requested region is aligned */
-+	for (i = 0; i < mtd->numeraseregions; i++) {
-+		for (j = 0; j < mtd->eraseregions[i].numblocks; j++) {
-+			if (addr == mtd->eraseregions[i].offset + mtd->eraseregions[i].erasesize * j &&
-+			    len >= mtd->eraseregions[i].erasesize) {
-+				if ((ret = sflash_erase(sflash->cc, addr)) < 0)
-+					break;
-+				if ((ret = sflash_mtd_poll(sflash, addr, 10 * HZ)))
-+					break;
-+				addr += mtd->eraseregions[i].erasesize;
-+				len -= mtd->eraseregions[i].erasesize;
-+			}
-+		}
-+		if (ret)
-+			break;
-+	}
-+
-+	up(&sflash->lock);
-+
-+	/* Set erase status */
-+	if (ret)
-+		erase->state = MTD_ERASE_FAILED;
-+	else 
-+		erase->state = MTD_ERASE_DONE;
-+
-+	/* Call erase callback */
-+	if (erase->callback)
-+		erase->callback(erase);
-+
-+	return ret;
-+}
-+
-+#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
-+#define sflash_mtd_init init_module
-+#define sflash_mtd_exit cleanup_module
-+#endif
-+
-+mod_init_t
-+sflash_mtd_init(void)
-+{
-+	struct pci_dev *pdev;
-+	int ret = 0;
-+	struct sflash *info;
-+	uint bank, i;
-+#ifdef CONFIG_MTD_PARTITIONS
-+	struct mtd_partition *parts;
-+#endif
-+
-+	if (!(pdev = pci_find_device(VENDOR_BROADCOM, SB_CC, NULL))) {
-+		printk(KERN_ERR "sflash: chipcommon not found\n");
-+		return -ENODEV;
-+	}
-+
-+	memset(&sflash, 0, sizeof(struct sflash_mtd));
-+	init_MUTEX(&sflash.lock);
-+
-+	/* Map registers and flash base */
-+	if (!(sflash.cc = ioremap_nocache(pci_resource_start(pdev, 0),
-+					  pci_resource_len(pdev, 0)))) {
-+		printk(KERN_ERR "sflash: error mapping registers\n");
-+		ret = -EIO;
-+		goto fail;
-+	}
-+
-+	/* Initialize serial flash access */
-+	info = sflash_init(sflash.cc);
-+
-+	if (!info) {
-+		printk(KERN_ERR "sflash: found no supported devices\n");
-+		ret = -ENODEV;
-+		goto fail;
-+	}
-+
-+	/* Setup banks */
-+	sflash.regions[0].offset = 0;
-+	sflash.regions[0].erasesize = info->blocksize;
-+	sflash.regions[0].numblocks = info->numblocks;
-+	if (sflash.regions[0].erasesize > sflash.mtd.erasesize)
-+		sflash.mtd.erasesize = sflash.regions[0].erasesize;
-+	if (sflash.regions[0].erasesize * sflash.regions[0].numblocks) {
-+		sflash.mtd.size += sflash.regions[0].erasesize * sflash.regions[0].numblocks;
-+	}
-+	sflash.mtd.numeraseregions = 1;
-+	ASSERT(sflash.mtd.size == info->size);
-+
-+	/* Register with MTD */
-+	sflash.mtd.name = "sflash";
-+	sflash.mtd.type = MTD_NORFLASH;
-+	sflash.mtd.flags = MTD_CAP_NORFLASH;
-+	sflash.mtd.eraseregions = sflash.regions;
-+	sflash.mtd.module = THIS_MODULE;
-+	sflash.mtd.erase = sflash_mtd_erase;
-+	sflash.mtd.read = sflash_mtd_read;
-+	sflash.mtd.write = sflash_mtd_write;
-+	sflash.mtd.priv = &sflash;
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+	parts = init_mtd_partitions(&sflash.mtd, sflash.mtd.size);
-+	for (i = 0; parts[i].name; i++);
-+	ret = add_mtd_partitions(&sflash.mtd, parts, i);
-+#else
-+	ret = add_mtd_device(&sflash.mtd);
-+#endif
-+	if (ret) {
-+		printk(KERN_ERR "sflash: add_mtd failed\n");
-+		goto fail;
-+	}
-+
-+	return 0;
-+
-+ fail:
-+	if (sflash.cc)
-+		iounmap((void *) sflash.cc);
-+	return ret;
-+}
-+
-+mod_exit_t
-+sflash_mtd_exit(void)
-+{
-+#ifdef CONFIG_MTD_PARTITIONS
-+	del_mtd_partitions(&sflash.mtd);
-+#else
-+	del_mtd_device(&sflash.mtd);
-+#endif
-+	iounmap((void *) sflash.cc);
-+}
-+
-+module_init(sflash_mtd_init);
-+module_exit(sflash_mtd_exit);
-diff -urN linux.old/drivers/mtd/maps/bcm947xx-flash.c linux.dev/drivers/mtd/maps/bcm947xx-flash.c
---- linux.old/drivers/mtd/maps/bcm947xx-flash.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/mtd/maps/bcm947xx-flash.c	2006-06-23 18:08:46.000000000 +0200
-@@ -0,0 +1,548 @@
-+/*
-+ *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
-+ *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
-+ *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
-+ *
-+ *  original functions for finding root filesystem from Mike Baker 
-+ *
-+ *  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.
-+ *
-+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
-+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
-+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
-+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
-+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
-+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
-+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-+ *
-+ *  You should have received a copy of the  GNU General Public License along
-+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
-+ *  675 Mass Ave, Cambridge, MA 02139, USA.
-+ * 
-+ *
-+ * Copyright 2004, Broadcom Corporation
-+ * All Rights Reserved.
-+ * 
-+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
-+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
-+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
-+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
-+ *
-+ * Flash mapping for BCM947XX boards
-+ *
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/wait.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/map.h>
-+#ifdef CONFIG_MTD_PARTITIONS
-+#include <linux/mtd/partitions.h>
-+#endif
-+#include <linux/config.h>
-+#include <linux/squashfs_fs.h>
-+#include <linux/jffs2.h>
-+#include <linux/crc32.h>
-+#include <asm/io.h>
-+
-+#include <typedefs.h>
-+#include <osl.h>
-+#include <bcmnvram.h>
-+#include <bcmutils.h>
-+#include <sbconfig.h>
-+#include <sbchipc.h>
-+#include <sbutils.h>
-+#include <trxhdr.h>
-+
-+/* Global SB handle */
-+extern void *bcm947xx_sbh;
-+extern spinlock_t bcm947xx_sbh_lock;
-+
-+/* Convenience */
-+#define sbh bcm947xx_sbh
-+#define sbh_lock bcm947xx_sbh_lock
-+
-+#define WINDOW_ADDR 0x1fc00000
-+#define WINDOW_SIZE 0x400000
-+#define BUSWIDTH 2
-+
-+static struct mtd_info *bcm947xx_mtd;
-+
-+__u8 bcm947xx_map_read8(struct map_info *map, unsigned long ofs)
-+{
-+	if (map->map_priv_2 == 1)
-+		return __raw_readb(map->map_priv_1 + ofs);
-+
-+	u16 val = __raw_readw(map->map_priv_1 + (ofs & ~1));
-+	if (ofs & 1)
-+		return ((val >> 8) & 0xff);
-+	else
-+		return (val & 0xff);
-+}
-+
-+__u16 bcm947xx_map_read16(struct map_info *map, unsigned long ofs)
-+{
-+	return __raw_readw(map->map_priv_1 + ofs);
-+}
-+
-+__u32 bcm947xx_map_read32(struct map_info *map, unsigned long ofs)
-+{
-+	return __raw_readl(map->map_priv_1 + ofs);
-+}
-+
-+void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+	if (len==1) {
-+		memcpy_fromio(to, map->map_priv_1 + from, len);
-+	} else {
-+		int i;
-+		u16 *dest = (u16 *) to;
-+		u16 *src  = (u16 *) (map->map_priv_1 + from);
-+		for (i = 0; i < (len / 2); i++) {
-+			dest[i] = src[i];
-+		}
-+		if (len & 1)
-+			*((u8 *)dest+len-1) = src[i] & 0xff;
-+	}
-+}
-+
-+void bcm947xx_map_write8(struct map_info *map, __u8 d, unsigned long adr)
-+{
-+	__raw_writeb(d, map->map_priv_1 + adr);
-+	mb();
-+}
-+
-+void bcm947xx_map_write16(struct map_info *map, __u16 d, unsigned long adr)
-+{
-+	__raw_writew(d, map->map_priv_1 + adr);
-+	mb();
-+}
-+
-+void bcm947xx_map_write32(struct map_info *map, __u32 d, unsigned long adr)
-+{
-+	__raw_writel(d, map->map_priv_1 + adr);
-+	mb();
-+}
-+
-+void bcm947xx_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-+{
-+	memcpy_toio(map->map_priv_1 + to, from, len);
-+}
-+
-+struct map_info bcm947xx_map = {
-+	name: "Physically mapped flash",
-+	size: WINDOW_SIZE,
-+	buswidth: BUSWIDTH,
-+	read8: bcm947xx_map_read8,
-+	read16: bcm947xx_map_read16,
-+	read32: bcm947xx_map_read32,
-+	copy_from: bcm947xx_map_copy_from,
-+	write8: bcm947xx_map_write8,
-+	write16: bcm947xx_map_write16,
-+	write32: bcm947xx_map_write32,
-+	copy_to: bcm947xx_map_copy_to
-+};
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+
-+static struct mtd_partition bcm947xx_parts[] = {
-+	{ name: "cfe",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
-+	{ name: "linux", offset: 0, size: 0, },
-+	{ name: "rootfs", offset: 0, size: 0, },
-+	{ name: "nvram", offset: 0, size: 0, },
-+	{ name: "OpenWrt", offset: 0, size: 0, },
-+	{ name: NULL, },
-+};
-+
-+static int __init
-+find_cfe_size(struct mtd_info *mtd, size_t size)
-+{
-+	struct trx_header *trx;
-+	unsigned char buf[512];
-+	int off;
-+	size_t len;
-+	int blocksize;
-+
-+	trx = (struct trx_header *) buf;
-+
-+	blocksize = mtd->erasesize;
-+	if (blocksize < 0x10000)
-+		blocksize = 0x10000;
-+
-+	for (off = (128*1024); off < size; off += blocksize) {
-+		memset(buf, 0xe5, sizeof(buf));
-+
-+		/*
-+		 * Read into buffer 
-+		 */
-+		if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
-+		    len != sizeof(buf))
-+			continue;
-+
-+		/* found a TRX header */
-+		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
-+			goto found;
-+		}
-+	}
-+
-+	printk(KERN_NOTICE
-+	       "%s: Couldn't find bootloader size\n",
-+	       mtd->name);
-+	return -1;
-+
-+ found:
-+	printk(KERN_NOTICE "bootloader size: %d\n", off);
-+	return off;
-+
-+}
-+
-+/*
-+ * Copied from mtdblock.c
-+ *
-+ * Cache stuff...
-+ * 
-+ * Since typical flash erasable sectors are much larger than what Linux's
-+ * buffer cache can handle, we must implement read-modify-write on flash
-+ * sectors for each block write requests.  To avoid over-erasing flash sectors
-+ * and to speed things up, we locally cache a whole flash sector while it is
-+ * being written to until a different sector is required.
-+ */
-+
-+static void erase_callback(struct erase_info *done)
-+{
-+	wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
-+	wake_up(wait_q);
-+}
-+
-+static int erase_write (struct mtd_info *mtd, unsigned long pos, 
-+			int len, const char *buf)
-+{
-+	struct erase_info erase;
-+	DECLARE_WAITQUEUE(wait, current);
-+	wait_queue_head_t wait_q;
-+	size_t retlen;
-+	int ret;
-+
-+	/*
-+	 * First, let's erase the flash block.
-+	 */
-+
-+	init_waitqueue_head(&wait_q);
-+	erase.mtd = mtd;
-+	erase.callback = erase_callback;
-+	erase.addr = pos;
-+	erase.len = len;
-+	erase.priv = (u_long)&wait_q;
-+
-+	set_current_state(TASK_INTERRUPTIBLE);
-+	add_wait_queue(&wait_q, &wait);
-+
-+	ret = MTD_ERASE(mtd, &erase);
-+	if (ret) {
-+		set_current_state(TASK_RUNNING);
-+		remove_wait_queue(&wait_q, &wait);
-+		printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
-+				     "on \"%s\" failed\n",
-+			pos, len, mtd->name);
-+		return ret;
-+	}
-+
-+	schedule();  /* Wait for erase to finish. */
-+	remove_wait_queue(&wait_q, &wait);
-+
-+	/*
-+	 * Next, writhe data to flash.
-+	 */
-+
-+	ret = MTD_WRITE (mtd, pos, len, &retlen, buf);
-+	if (ret)
-+		return ret;
-+	if (retlen != len)
-+		return -EIO;
-+	return 0;
-+}
-+
-+
-+
-+
-+static int __init
-+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
-+{
-+	struct trx_header trx, *trx2;
-+	unsigned char buf[512], *block;
-+	int off, blocksize;
-+	u32 i, crc = ~0;
-+	size_t len;
-+	struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
-+
-+	blocksize = mtd->erasesize;
-+	if (blocksize < 0x10000)
-+		blocksize = 0x10000;
-+
-+	for (off = (128*1024); off < size; off += blocksize) {
-+		memset(&trx, 0xe5, sizeof(trx));
-+
-+		/*
-+		 * Read into buffer 
-+		 */
-+		if (MTD_READ(mtd, off, sizeof(trx), &len, (char *) &trx) ||
-+		    len != sizeof(trx))
-+			continue;
-+
-+		/* found a TRX header */
-+		if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
-+			part->offset = le32_to_cpu(trx.offsets[2]) ? : 
-+				le32_to_cpu(trx.offsets[1]);
-+			part->size = le32_to_cpu(trx.len); 
-+
-+			part->size -= part->offset;
-+			part->offset += off;
-+
-+			goto found;
-+		}
-+	}
-+
-+	printk(KERN_NOTICE
-+	       "%s: Couldn't find root filesystem\n",
-+	       mtd->name);
-+	return -1;
-+
-+ found:
-+	if (part->size == 0)
-+		return 0;
-+	
-+	if (MTD_READ(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
-+		return 0;
-+
-+	if (*((__u32 *) buf) == SQUASHFS_MAGIC) {
-+		printk(KERN_INFO "%s: Filesystem type: squashfs, size=0x%x\n", mtd->name, (u32) sb->bytes_used);
-+
-+		/* Update the squashfs partition size based on the superblock info */
-+		part->size = sb->bytes_used;
-+		len = part->offset + part->size;
-+		len +=  (mtd->erasesize - 1);
-+		len &= ~(mtd->erasesize - 1);
-+		part->size = len - part->offset;
-+	} else if (*((__u16 *) buf) == JFFS2_MAGIC_BITMASK) {
-+		printk(KERN_INFO "%s: Filesystem type: jffs2\n", mtd->name);
-+
-+		/* Move the squashfs outside of the trx */
-+		part->size = 0;
-+	} else {
-+		printk(KERN_INFO "%s: Filesystem type: unknown\n", mtd->name);
-+		return 0;
-+	}
-+
-+	if (trx.len != part->offset + part->size - off) {
-+		/* Update the trx offsets and length */
-+		trx.len = part->offset + part->size - off;
-+	
-+		/* Update the trx crc32 */
-+		for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
-+			if (MTD_READ(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
-+				return 0;
-+			crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
-+		}
-+		trx.crc32 = crc;
-+
-+		/* read first eraseblock from the trx */
-+		trx2 = block = kmalloc(mtd->erasesize, GFP_KERNEL);
-+		if (MTD_READ(mtd, off, mtd->erasesize, &len, block) || len != mtd->erasesize) {
-+			printk("Error accessing the first trx eraseblock\n");
-+			return 0;
-+		}
-+		
-+		printk("Updating TRX offsets and length:\n");
-+		printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
-+		printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n",   trx.offsets[0],   trx.offsets[1],   trx.offsets[2],   trx.len, trx.crc32);
-+
-+		/* Write updated trx header to the flash */
-+		memcpy(block, &trx, sizeof(trx));
-+		if (mtd->unlock)
-+			mtd->unlock(mtd, off, mtd->erasesize);
-+		erase_write(mtd, off, mtd->erasesize, block);
-+		if (mtd->sync)
-+			mtd->sync(mtd);
-+		kfree(block);
-+		printk("Done\n");
-+	}
-+	
-+	return part->size;
-+}
-+
-+struct mtd_partition * __init
-+init_mtd_partitions(struct mtd_info *mtd, size_t size)
-+{
-+	int cfe_size;
-+
-+	if ((cfe_size = find_cfe_size(mtd,size)) < 0)
-+		return NULL;
-+
-+	/* boot loader */
-+	bcm947xx_parts[0].offset = 0;
-+	bcm947xx_parts[0].size   = cfe_size;
-+
-+	/* nvram */
-+	if (cfe_size != 384 * 1024) {
-+		bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+		bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+	} else {
-+		/* nvram (old 128kb config partition on netgear wgt634u) */
-+		bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
-+		bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+	}
-+
-+	/* linux (kernel and rootfs) */
-+	if (cfe_size != 384 * 1024) {
-+		bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
-+		bcm947xx_parts[1].size   = bcm947xx_parts[3].offset - 
-+			bcm947xx_parts[1].offset;
-+	} else {
-+		/* do not count the elf loader, which is on one block */
-+		bcm947xx_parts[1].offset = bcm947xx_parts[0].size + 
-+			bcm947xx_parts[3].size + mtd->erasesize;
-+		bcm947xx_parts[1].size   = size - 
-+			bcm947xx_parts[0].size - 
-+			(2*bcm947xx_parts[3].size) - 
-+			mtd->erasesize;
-+	}
-+
-+	/* find and size rootfs */
-+	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
-+		/* entirely jffs2 */
-+		bcm947xx_parts[4].name = NULL;
-+		bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - 
-+				bcm947xx_parts[3].size;
-+	} else {
-+		/* legacy setup */
-+		/* calculate leftover flash, and assign it to the jffs2 partition */
-+		if (cfe_size != 384 * 1024) {
-+			bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + 
-+				bcm947xx_parts[2].size;
-+			if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
-+				bcm947xx_parts[4].offset += mtd->erasesize - 
-+					(bcm947xx_parts[4].offset % mtd->erasesize);
-+			}
-+			bcm947xx_parts[4].size = bcm947xx_parts[3].offset - 
-+				bcm947xx_parts[4].offset;
-+		} else {
-+			bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + 
-+				bcm947xx_parts[2].size;
-+			if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
-+				bcm947xx_parts[4].offset += mtd->erasesize - 
-+					(bcm947xx_parts[4].offset % mtd->erasesize);
-+			}
-+			bcm947xx_parts[4].size = size - bcm947xx_parts[3].size - 
-+				bcm947xx_parts[4].offset;
-+		}
-+	}
-+
-+	return bcm947xx_parts;
-+}
-+
-+#endif
-+
-+
-+mod_init_t init_bcm947xx_map(void)
-+{
-+	ulong flags;
-+ 	uint coreidx;
-+	chipcregs_t *cc;
-+	uint32 fltype;
-+	uint window_addr = 0, window_size = 0;
-+	size_t size;
-+	int ret = 0;
-+#ifdef CONFIG_MTD_PARTITIONS
-+	struct mtd_partition *parts;
-+	int i;
-+#endif
-+
-+	spin_lock_irqsave(&sbh_lock, flags);
-+	coreidx = sb_coreidx(sbh);
-+
-+	/* Check strapping option if chipcommon exists */
-+	if ((cc = sb_setcore(sbh, SB_CC, 0))) {
-+		fltype = readl(&cc->capabilities) & CAP_FLASH_MASK;
-+		if (fltype == PFLASH) {
-+			bcm947xx_map.map_priv_2 = 1;
-+			window_addr = 0x1c000000;
-+			bcm947xx_map.size = window_size = 32 * 1024 * 1024;
-+			if ((readl(&cc->flash_config) & CC_CFG_DS) == 0)
-+				bcm947xx_map.buswidth = 1;
-+		}
-+	} else {
-+		fltype = PFLASH;
-+		bcm947xx_map.map_priv_2 = 0;
-+		window_addr = WINDOW_ADDR;
-+		window_size = WINDOW_SIZE;
-+	}
-+
-+	sb_setcoreidx(sbh, coreidx);
-+	spin_unlock_irqrestore(&sbh_lock, flags);
-+
-+	if (fltype != PFLASH) {
-+		printk(KERN_ERR "pflash: found no supported devices\n");
-+		ret = -ENODEV;
-+		goto fail;
-+	}
-+
-+	bcm947xx_map.map_priv_1 = (unsigned long) ioremap(window_addr, window_size);
-+
-+	if (!bcm947xx_map.map_priv_1) {
-+		printk(KERN_ERR "Failed to ioremap\n");
-+		return -EIO;
-+	}
-+
-+	if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
-+		printk(KERN_ERR "pflash: cfi_probe failed\n");
-+		iounmap((void *)bcm947xx_map.map_priv_1);
-+		return -ENXIO;
-+	}
-+
-+	bcm947xx_mtd->module = THIS_MODULE;
-+
-+	size = bcm947xx_mtd->size;
-+
-+	printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, window_addr);
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+	parts = init_mtd_partitions(bcm947xx_mtd, size);
-+	for (i = 0; parts[i].name; i++);
-+	ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
-+	if (ret) {
-+		printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
-+		goto fail;
-+	}
-+#endif
-+
-+	return 0;
-+
-+ fail:
-+	if (bcm947xx_mtd)
-+		map_destroy(bcm947xx_mtd);
-+	if (bcm947xx_map.map_priv_1)
-+		iounmap((void *) bcm947xx_map.map_priv_1);
-+	bcm947xx_map.map_priv_1 = 0;
-+	return ret;
-+}
-+
-+mod_exit_t cleanup_bcm947xx_map(void)
-+{
-+#ifdef CONFIG_MTD_PARTITIONS
-+	del_mtd_partitions(bcm947xx_mtd);
-+#endif
-+	map_destroy(bcm947xx_mtd);
-+	iounmap((void *) bcm947xx_map.map_priv_1);
-+	bcm947xx_map.map_priv_1 = 0;
-+}
-+
-+module_init(init_bcm947xx_map);
-+module_exit(cleanup_bcm947xx_map);
 diff -urN linux.old/drivers/mtd/maps/Config.in linux.dev/drivers/mtd/maps/Config.in
 --- linux.old/drivers/mtd/maps/Config.in	2006-06-22 17:35:39.000000000 +0200
 +++ linux.dev/drivers/mtd/maps/Config.in	2006-06-21 21:41:24.000000000 +0200