target/linux/brcm47xx/patches-3.9/026-mtd-bcm47xxpart-find-boot-partition-by-CFE-magic.patch

   1 --- a/drivers/mtd/bcm47xxpart.c
   2 +++ b/drivers/mtd/bcm47xxpart.c
   3 @@ -23,9 +23,10 @@
   4   * Amount of bytes we read when analyzing each block of flash memory.
   5   * Set it big enough to allow detecting partition and reading important data.
   6   */
   7 -#define BCM47XXPART_BYTES_TO_READ      0x404
   8 +#define BCM47XXPART_BYTES_TO_READ      0x4e8
   9
  10  /* Magics */
  11 +#define CFE_MAGIC                      0x43464531      /* 1EFC */
  12  #define BOARD_DATA_MAGIC               0x5246504D      /* MPFR */
  13  #define POT_MAGIC1                     0x54544f50      /* POTT */
  14  #define POT_MAGIC2                     0x504f          /* OP */
  15 @@ -93,8 +94,9 @@ static int bcm47xxpart_parse(struct mtd_
  16                         continue;
  17                 }
  18
  19 -               /* CFE has small NVRAM at 0x400 */
  20 -               if (buf[0x400 / 4] == NVRAM_HEADER) {
  21 +               /* Magic or small NVRAM at 0x400 */
  22 +               if (buf[0x4e0 / 4] == CFE_MAGIC ||
  23 +                   buf[0x400 / 4] == NVRAM_HEADER) {
  24                         bcm47xxpart_add_part(&parts[curr_part++], "boot",
  25                                              offset, MTD_WRITEABLE);
  26                         continue;