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path: root/target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch
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Diffstat (limited to 'target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch')
-rw-r--r--target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch271
1 files changed, 271 insertions, 0 deletions
diff --git a/target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch b/target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch
new file mode 100644
index 0000000000..5e1a2fb0e5
--- /dev/null
+++ b/target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch
@@ -0,0 +1,271 @@
+diff -urN linux-2.6.17/drivers/mtd/maps/imghdr.h linux-2.6.17.new/drivers/mtd/maps/imghdr.h
+--- linux-2.6.17/drivers/mtd/maps/imghdr.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.17.new/drivers/mtd/maps/imghdr.h 2006-09-24 20:29:20.000000000 +0200
+@@ -0,0 +1,25 @@
++#ifndef GT_IMGHDR_H
++#define GT_IMGHDR_H
++
++#define GTIMG_MAGIC "GMTK"
++
++/* Product ID */
++#define PID_RTL_AIRGO 1
++#define PID_RTL_RALINK 2
++#define PID_RDC_AIRGO 3
++#define PID_RDC_RALINK 5 /* White Lable */
++
++/* Gemtek */
++typedef struct
++{
++ UINT8 magic[4]; /* ASICII: GMTK */
++ UINT32 checksum; /* CRC32 */
++ UINT32 version; /* x.x.x.x */
++ UINT32 kernelsz; /* The size of the kernel image */
++ UINT32 imagesz; /* The length of this image file ( kernel + romfs + this header) */
++ UINT32 pid; /* Product ID */
++ UINT32 fastcksum; /* Partial CRC32 on (First(256), medium(256), last(512)) */
++ UINT32 reserved;
++}gt_imghdr_t;
++
++#endif
+diff -urN linux-2.6.17/drivers/mtd/maps/Kconfig linux-2.6.17.new/drivers/mtd/maps/Kconfig
+--- linux-2.6.17/drivers/mtd/maps/Kconfig 2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17.new/drivers/mtd/maps/Kconfig 2006-09-24 20:28:11.000000000 +0200
+@@ -76,6 +76,12 @@
+ PNC-2000 is the name of Network Camera product from PHOTRON
+ Ltd. in Japan. It uses CFI-compliant flash.
+
++config MTD_RDC3210
++ tristate "CFI Flash devcie mapped on RDC3210"
++ depends on X86 && MTD_CFI && MTD_PARTITIONS
++ help
++ RDC-3210 is the flash device we find on Ralink reference board
++
+ config MTD_SC520CDP
+ tristate "CFI Flash device mapped on AMD SC520 CDP"
+ depends on X86 && MTD_CFI
+diff -urN linux-2.6.17/drivers/mtd/maps/Makefile linux-2.6.17.new/drivers/mtd/maps/Makefile
+--- linux-2.6.17/drivers/mtd/maps/Makefile 2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17.new/drivers/mtd/maps/Makefile 2006-09-24 20:26:10.000000000 +0200
+@@ -28,6 +28,7 @@
+ obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
+ obj-$(CONFIG_MTD_PNC2000) += pnc2000.o
+ obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
++obj-$(CONFIG_MTD_RDC3210) += rdc3210.o
+ obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
+ obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
+ obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o
+diff -urN linux-2.6.17/drivers/mtd/maps/rdc3210.c linux-2.6.17.new/drivers/mtd/maps/rdc3210.c
+--- linux-2.6.17/drivers/mtd/maps/rdc3210.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.17.new/drivers/mtd/maps/rdc3210.c 2006-09-24 22:55:20.000000000 +0200
+@@ -0,0 +1,211 @@
++/*******************************************************************
++ * Simple Flash mapping for RDC3210 *
++ * *
++ * 2005.03.23 *
++ * Dante Su (dante_su@gemtek.com.tw) *
++ * Copyright (C) 2005 Gemtek Corporation *
++ *******************************************************************/
++
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/io.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <linux/config.h>
++
++#define WINDOW_ADDR 0xFFC00000
++#define WINDOW_SIZE 0x00400000
++
++#define BUSWIDTH 2
++
++static struct mtd_info *rdc3210_mtd_info;
++
++__u8 rdc3210_map_read8(struct map_info *map, unsigned long ofs)
++{
++ return *(__u8 *)(map->map_priv_1 + ofs);
++}
++
++__u16 rdc3210_map_read16(struct map_info *map, unsigned long ofs)
++{
++ return *(__u16 *)(map->map_priv_1 + ofs);
++}
++
++__u32 rdc3210_map_read32(struct map_info *map, unsigned long ofs)
++{
++ return *(__u32 *)(map->map_priv_1 + ofs);
++}
++
++void rdc3210_map_write8(struct map_info *map, __u8 d, unsigned long adr)
++{
++ *(__u8 *)(map->map_priv_1 + adr) = d;
++}
++
++void rdc3210_map_write16(struct map_info *map, __u16 d, unsigned long adr)
++{
++ *(__u16 *)(map->map_priv_1 + adr) = d;
++}
++
++void rdc3210_map_write32(struct map_info *map, __u32 d, unsigned long adr)
++{
++ *(__u32 *)(map->map_priv_1 + adr) = d;
++}
++
++void rdc3210_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++ int i;
++ u16 *dst = (u16 *)(to);
++ u16 *src = (u16 *)(map->map_priv_1 + from);
++
++ for(i = 0; i < (len / 2); ++i)
++ dst[i] = src[i];
++
++ if(len & 1)
++ {
++ printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
++ //dst[len - 1] = B0(src[i]);
++ }
++}
++
++void rdc3210_map_copy_to(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++ int i;
++ u16 *dst = (u16 *)(map->map_priv_1 + to);
++ u16 *src = (u16 *)(from);
++
++ for(i = 0; i < (len / 2); ++i)
++ dst[i] = src[i];
++
++ if(len & 1)
++ {
++ printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
++ //dst[len - 1] = B0(src[i]);
++ }
++}
++
++static struct map_info rdc3210_map =
++{
++ .name = "RDC3210 Flash",
++ .size = WINDOW_SIZE,
++ .bankwidth = BUSWIDTH,
++ .phys = WINDOW_ADDR,
++};
++
++/* Dante: This is the default static mapping, however this is nothing but a hint. (Say dynamic mapping) */
++static struct mtd_partition rdc3210_parts[] =
++{
++ { .name = "linux", .offset = 0, .size = 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
++ { .name = "romfs", .offset = 0x000C0000, .size = 0x00300000 }, /* 3072 KB */
++ { .name = "nvram", .offset = 0x003C0000, .size = 0x00010000 }, /* 64 KB */
++ { .name = "factory", .offset = 0x003D0000, .size = 0x00010000 }, /* 64 KB */
++ { .name = "bootldr", .offset = 0x003E0000, .size = 0x00020000 }, /* 128 KB */
++};
++
++static int __init rdc3210_mtd_init(void)
++{
++ printk(KERN_NOTICE "flash device: 0x%x at 0x%x\n", WINDOW_SIZE, WINDOW_ADDR);
++
++ rdc3210_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
++
++ if (!rdc3210_map.virt)
++ {
++ printk("Failed to ioremap\n");
++ return -EIO;
++ }
++
++ simple_map_init(&rdc3210_map);
++
++ rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map);
++ /* Dante: This is for fixed map */
++ if (rdc3210_mtd_info)
++ {
++ rdc3210_mtd_info->owner = THIS_MODULE;
++ add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
++ return 0;
++ }
++ /* Dante: This is for dynamic mapping */
++#if 0
++ if (rdc3210_mtd_info)
++ { // Dante
++ unsigned int tmp;
++ gt_imghdr_t *hdr;
++
++ hdr = (gt_imghdr_t *)(rdc3210_map.virt);
++
++ if(memcmp(hdr->magic, GTIMG_MAGIC, 4))
++ {
++ printk("Invalid MAGIC for Firmware Image!!!\n");
++ return -EIO;
++ }
++
++ /* 1. Adjust Redboot */
++ tmp = flashdrv_get_size() - rdc3210_parts[4].size;
++ rdc3210_parts[4].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
++ rdc3210_parts[4].size = flashdrv_get_size() - rdc3210_parts[4].offset;
++
++ /* 2. Adjust NVRAM */
++ tmp -= rdc3210_parts[3].size;
++ rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
++ rdc3210_parts[3].size = rdc3210_parts[4].offset - rdc3210_parts[3].offset;
++
++ /* 3. Adjust Factory Default */
++ tmp -= rdc3210_parts[2].size;
++ rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
++ rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
++
++ /* 4. Adjust Linux (Kernel + ROMFS) */
++ rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
++
++ /* 5. Adjust ROMFS */
++ tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
++ rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
++ rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
++
++ /* 1. Adjust Redboot */
++ tmp = flashdrv_get_size() - rdc3210_parts[3].size;
++ rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
++ rdc3210_parts[3].size = flashdrv_get_size() - rdc3210_parts[3].offset;
++
++ /* 2. Adjust NVRAM */
++ tmp -= rdc3210_parts[2].size;
++ rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
++ rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
++
++ /* 4. Adjust Linux (Kernel + ROMFS) */
++ rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
++
++ /* 5. Adjust ROMFS */
++ tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
++ rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
++ rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
++
++ rdc3210_mtd_info->owner = THIS_MODULE;
++ add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
++ return 0;
++ }
++#endif
++ iounmap((void *)rdc3210_map.virt);
++ return -ENXIO;
++}
++
++static void __exit rdc3210_mtd_exit(void)
++{
++ if (rdc3210_mtd_info)
++ {
++ del_mtd_partitions(rdc3210_mtd_info);
++ map_destroy(rdc3210_mtd_info);
++ }
++
++ if (rdc3210_map.virt)
++ {
++ iounmap(rdc3210_map.virt);
++ rdc3210_map.virt = 0;
++ }
++}
++
++module_init(rdc3210_mtd_init);
++module_exit(rdc3210_mtd_exit);
++MODULE_LICENSE("GPL");
++
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