diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch new file mode 100644 index 0000000000..2babb9e581 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch @@ -0,0 +1,151 @@ +From a4d005c91d403d9f3d0272db6cc46202c06ec774 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 | 32 ++++++++++++++++++++++++---- + drivers/mtd/redboot.c | 13 +++++++++-- + 3 files changed, 38 insertions(+), 26 deletions(-) + +--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c ++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c +@@ -822,20 +822,6 @@ 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 */ +@@ -845,12 +831,9 @@ 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 +@@ -28,6 +28,8 @@ + #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> + +@@ -36,6 +38,14 @@ + + #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; +@@ -220,9 +230,21 @@ probe_ok: + } + } + } 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 mtd_device_register(bcm963xx_mtd_info, parsed_parts, +--- a/drivers/mtd/redboot.c ++++ b/drivers/mtd/redboot.c +@@ -58,7 +58,7 @@ 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, + struct mtd_part_parser_data *data) + { +@@ -75,6 +75,7 @@ static int parse_redboot_partitions(stru + int nulllen = 0; + int numslots; + unsigned long offset; ++ unsigned long fis_origin = 0; + #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED + static char nullstring[] = "unallocated"; + #endif +@@ -181,6 +182,16 @@ static int parse_redboot_partitions(stru + goto out; + } + ++ if (data && data->origin) { ++ fis_origin = data->origin; ++ } else { ++ 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; + +@@ -201,10 +212,10 @@ static int parse_redboot_partitions(stru + goto out; + } + new_fl->img = &buf[i]; +- if (data && data->origin) +- buf[i].flash_base -= data->origin; +- else +- buf[i].flash_base &= master->size-1; ++ if (fis_origin) ++ buf[i].flash_base -= fis_origin; ++ ++ 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_ |