diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch new file mode 100644 index 0000000000..d08b9b12e7 --- /dev/null +++ b/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch @@ -0,0 +1,159 @@ +From b1096781081b328fdac0e14a726ea04c2e9545c7 Mon Sep 17 00:00:00 2001 +From: Axel Gembe <ago@bastart.eu.org> +Date: Mon, 12 May 2008 18:54:09 +0200 +Subject: [PATCH] bcm963xx: flashmap support + +Signed-off-by: Axel Gembe <ago@bastart.eu.org> +--- + arch/mips/bcm63xx/boards/board_bcm963xx.c | 19 +--------------- + drivers/mtd/maps/bcm963xx-flash.c | 34 ++++++++++++++++++++++++---- + drivers/mtd/redboot.c | 13 ++++++++-- + 3 files changed, 40 insertions(+), 26 deletions(-) + +--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c ++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c +@@ -816,20 +816,6 @@ void __init board_setup(void) + panic("unexpected CPU for bcm963xx board"); + } + +-static struct mtd_partition mtd_partitions[] = { +- { +- .name = "cfe", +- .offset = 0x0, +- .size = 0x40000, +- } +-}; +- +-static struct physmap_flash_data flash_data = { +- .width = 2, +- .nr_parts = ARRAY_SIZE(mtd_partitions), +- .parts = mtd_partitions, +-}; +- + static struct resource mtd_resources[] = { + { + .start = 0, /* filled at runtime */ +@@ -839,12 +825,9 @@ static struct resource mtd_resources[] = + }; + + static struct platform_device mtd_dev = { +- .name = "physmap-flash", ++ .name = "bcm963xx-flash", + .resource = mtd_resources, + .num_resources = ARRAY_SIZE(mtd_resources), +- .dev = { +- .platform_data = &flash_data, +- }, + }; + + static struct gpio_led_platform_data bcm63xx_led_data; +--- a/drivers/mtd/maps/bcm963xx-flash.c ++++ b/drivers/mtd/maps/bcm963xx-flash.c +@@ -27,6 +27,8 @@ + #include <linux/vmalloc.h> + #include <linux/platform_device.h> + #include <linux/io.h> ++#include <linux/magic.h> ++#include <linux/jffs2.h> + + #include <asm/mach-bcm63xx/bcm963xx_tag.h> + +@@ -35,6 +37,14 @@ + + #define PFX KBUILD_MODNAME ": " + ++struct squashfs_super_block { ++ __le32 s_magic; ++ __le32 pad0[9]; ++ __le64 bytes_used; ++}; ++ ++extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin); ++ + static struct mtd_partition *parsed_parts; + + static struct mtd_info *bcm963xx_mtd_info; +@@ -56,7 +66,7 @@ static int parse_cfe_partitions(struct m + unsigned int rootfsaddr, kerneladdr, spareaddr; + unsigned int rootfslen, kernellen, sparelen, totallen; + int namelen = 0; +- int i; ++ int i, offset; + char *boardid; + char *tagversion; + +@@ -84,9 +94,11 @@ static int parse_cfe_partitions(struct m + + kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE; + rootfsaddr = kerneladdr + kernellen; ++ ++ rootfslen = ( ( rootfslen % master->erasesize ) > 0 ? (((rootfslen / master->erasesize) + 1 ) * master->erasesize) : rootfslen); ++ + spareaddr = roundup(totallen, master->erasesize) + master->erasesize; + sparelen = master->size - spareaddr - master->erasesize; +- rootfslen = spareaddr - rootfsaddr; + + /* Determine number of partitions */ + namelen = 8; +@@ -214,9 +226,21 @@ static int bcm963xx_probe(struct platfor + } + } + } else { +- dev_info(&pdev->dev, "unsupported bootloader\n"); +- err = -ENODEV; +- goto err_probe; ++ printk(KERN_INFO PFX "assuming RedBoot bootloader\n"); ++ if (bcm963xx_mtd_info->size > 0x00400000) { ++ printk(KERN_INFO PFX "Support for extended flash memory size : 0x%lx ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size); ++ bcm963xx_map.virt = (u32)(BCM63XX_EXTENDED_SIZE); ++ } ++ ++#ifdef CONFIG_MTD_REDBOOT_PARTS ++ if (parsed_nr_parts == 0) { ++ int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0); ++ if (ret > 0) { ++ part_type = "RedBoot"; ++ parsed_nr_parts = ret; ++ } ++ } ++#endif + } + + return add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, +--- a/drivers/mtd/redboot.c ++++ b/drivers/mtd/redboot.c +@@ -57,7 +57,7 @@ static inline int redboot_checksum(struc + return 1; + } + +-static int parse_redboot_partitions(struct mtd_info *master, ++int parse_redboot_partitions(struct mtd_info *master, + struct mtd_partition **pparts, + unsigned long fis_origin) + { +@@ -180,6 +180,14 @@ static int parse_redboot_partitions(stru + goto out; + } + ++ if (!fis_origin) { ++ for (i = 0; i < numslots; i++) { ++ if (!strncmp(buf[i].name, "RedBoot", 8)) { ++ fis_origin = (buf[i].flash_base & (master->size << 1) - 1); ++ } ++ } ++ } ++ + for (i = 0; i < numslots; i++) { + struct fis_list *new_fl, **prev; + +@@ -202,9 +210,8 @@ static int parse_redboot_partitions(stru + new_fl->img = &buf[i]; + if (fis_origin) { + buf[i].flash_base -= fis_origin; +- } else { +- buf[i].flash_base &= master->size-1; + } ++ buf[i].flash_base &= (master->size << 1) - 1; + + /* I'm sure the JFFS2 code has done me permanent damage. + * I now think the following is _normal_ |