target/linux/brcm63xx/patches-3.3/405-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 {