diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch | 57 |
1 files changed, 52 insertions, 5 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch index ad7d73ad1c..c1b424d5d8 100644 --- a/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch +++ b/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch @@ -73,7 +73,7 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> +obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o --- /dev/null +++ b/drivers/mtd/maps/bcm963xx-flash.c -@@ -0,0 +1,267 @@ +@@ -0,0 +1,314 @@ +/* + * Copyright (C) 2006-2008 Florian Fainelli <florian@openwrt.org> + * Mike Albon <malbon@openwrt.org> @@ -101,6 +101,8 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/platform_device.h> ++#include <linux/magic.h> ++#include <linux/jffs2.h> + +#include <bcm_tag.h> +#include <asm/io.h> @@ -110,6 +112,12 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> + +#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; + @@ -120,7 +128,6 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> + .bankwidth = BUSWIDTH, +}; + -+ +static int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts) +{ + int nrparts = 3, curpart = 0; /* CFE,NVRAM and global LINUX are always present. */ @@ -131,9 +138,10 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> + unsigned int rootfsaddr, kerneladdr, spareaddr; + unsigned int rootfslen, kernellen, sparelen, totallen; + int namelen = 0; -+ int i; ++ int i, offset; + char *boardid; -+ char *tagversion; ++ char *tagversion; ++ struct squashfs_super_block sb; + + /* Allocate memory for buffer */ + buf = vmalloc(sizeof(struct bcm_tag)); @@ -157,9 +165,48 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org> + + kerneladdr = kerneladdr - EXTENDED_SIZE; + rootfsaddr = kerneladdr + kernellen; ++ ++ // offset = master->erasesize + sizeof(struct bcm_tag) + kernellen; ++ offset = rootfsaddr; ++ ret = master->read(master, offset, sizeof(sb), &retlen, (void *) &sb); ++ if (ret || (retlen != sizeof(sb))) { ++ printk(KERN_ALERT PFX "parse_cfe_partitions: error occured while reading " ++ "from \"%s\"\n", master->name); ++ return -EINVAL; ++ } ++ ++ // if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) { ++ printk(KERN_DEBUG PFX "Squash magic %08lx: Found: %08lx\n", (long unsigned int)SQUASHFS_MAGIC, (long unsigned int)le32_to_cpu(sb.s_magic)); ++ if ((uint32_t)SQUASHFS_MAGIC != (uint32_t)le32_to_cpu(sb.s_magic) ) { ++ /* Not a squashfs image */ ++ printk(KERN_DEBUG PFX "No squashfs image in \"%s\"\n", master->name); ++ printk(KERN_DEBUG PFX "Jffs magic %04x: Found: %04x\n", (uint16_t)(JFFS2_MAGIC_BITMASK), *(uint16_t *)(&sb)); ++ if (*(uint16_t *)(&sb) == JFFS2_MAGIC_BITMASK) { ++ printk(KERN_DEBUG PFX "jffs image in \"%s\"\n", master->name); ++ /* Is JFFS2 so have rootfslen so that true length gets calculated */ ++ rootfslen = master->size - master->erasesize - offset; ++ } else { ++ /* We only recognize squashfs and jffs2. If it's not either of these, ++ don't create a rootfs partition. */ ++ printk(KERN_INFO PFX "No known root filesystem in \"%s\"\n", master->name); ++ rootfslen = 0; ++ } ++ } else { ++ /* Is a squash image so find where the squash ends */ ++ if (le64_to_cpu((sb.bytes_used)) <= 0) { ++ printk(KERN_ALERT PFX "split_squashfs: squashfs is empty in \"%s\"\n", ++ master->name); ++ return 0; ++ } ++ ++ rootfslen = (u32) le64_to_cpu(sb.bytes_used); ++ } ++ ++ rootfslen = ( ( rootfslen % master->erasesize ) > 0 ? (((rootfslen / master->erasesize) + 1 ) * master->erasesize) : rootfslen); ++ totallen = rootfslen + kernellen + sizeof(struct bcm_tag); ++ + spareaddr = roundup(totallen, master->erasesize) + master->erasesize; + sparelen = master->size - spareaddr - master->erasesize; -+ rootfslen = spareaddr - rootfsaddr; + + /* Determine number of partitions */ + namelen = 8; |