Root/target/linux/brcm63xx/patches-3.3/041-bcm963xx_real_rootfs_length.patch

1--- a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
2+++ b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
3@@ -85,8 +85,10 @@ struct bcm_tag {
4     __u32 rootfs_crc;
5     /* 224-227: CRC32 of kernel partition */
6     __u32 kernel_crc;
7- /* 228-235: Unused at present */
8- char reserved1[8];
9+ /* 228-231: Image sequence number */
10+ char image_sequence[4];
11+ /* 222-235: Openwrt: real rootfs length */
12+ __u32 real_rootfs_length;
13     /* 236-239: CRC32 of header excluding last 20 bytes */
14     __u32 header_crc;
15     /* 240-255: Unused at present */
16--- a/drivers/mtd/bcm63xxpart.c
17+++ b/drivers/mtd/bcm63xxpart.c
18@@ -77,7 +77,7 @@ static int bcm63xx_parse_cfe_partitions(
19     int ret;
20     size_t retlen;
21     unsigned int rootfsaddr, kerneladdr, spareaddr;
22- unsigned int rootfslen, kernellen, sparelen, totallen;
23+ unsigned int rootfslen, kernellen, sparelen;
24     unsigned int cfelen, nvramlen;
25     int namelen = 0;
26     int i;
27@@ -111,14 +111,15 @@ static int bcm63xx_parse_cfe_partitions(
28 
29         sscanf(buf->kernel_address, "%u", &kerneladdr);
30         sscanf(buf->kernel_length, "%u", &kernellen);
31- sscanf(buf->total_length, "%u", &totallen);
32+ rootfslen = buf->real_rootfs_length;
33 
34         pr_info("CFE boot tag found with version %s and board type %s\n",
35             tagversion, boardid);
36 
37         kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE;
38         rootfsaddr = kerneladdr + kernellen;
39- spareaddr = roundup(totallen, master->erasesize) + cfelen;
40+ rootfslen = roundup(rootfslen, master->erasesize);
41+ spareaddr = rootfsaddr + rootfslen;
42         sparelen = master->size - spareaddr - nvramlen;
43         rootfslen = spareaddr - rootfsaddr;
44     } else {
45

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