target/linux/rb532/patches/002-rb532_nand_fixup.patch

   1 --- a/arch/mips/rb532/devices.c
   2 +++ b/arch/mips/rb532/devices.c
   3 @@ -140,6 +140,19 @@ static struct platform_device cf_slot0 =
   4  };
   5
   6  /* Resources and device for NAND */
   7 +
   8 +/*
   9 + * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
  10 + * will not be able to find the kernel that we load.  So set the oobinfo
  11 + * when creating the partitions
  12 + */
  13 +static struct nand_ecclayout rb532_nand_ecclayout = {
  14 +       .eccbytes       = 6,
  15 +       .eccpos         = { 8, 9, 10, 13, 14, 15 },
  16 +       .oobavail       = 9,
  17 +       .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
  18 +};
  19 +
  20  static int rb532_dev_ready(struct mtd_info *mtd)
  21  {
  22         return gpio_get_value(GPIO_RDY);
  23 @@ -281,6 +294,16 @@ static void __init parse_mac_addr(char *
  24  /* NAND definitions */
  25  #define NAND_CHIP_DELAY        25
  26
  27 +static int rb532_nand_fixup(struct mtd_info *mtd)
  28 +{
  29 +       struct nand_chip *chip = mtd->priv;
  30 +
  31 +       if (mtd->writesize == 512)
  32 +               chip->ecc.layout = &rb532_nand_ecclayout;
  33 +
  34 +       return 0;
  35 +}
  36 +
  37  static void __init rb532_nand_setup(void)
  38  {
  39         switch (mips_machtype) {
  40 @@ -300,6 +323,8 @@ static void __init rb532_nand_setup(void
  41         rb532_nand_data.chip.partitions = rb532_partition_info;
  42         rb532_nand_data.chip.chip_delay = NAND_CHIP_DELAY;
  43         rb532_nand_data.chip.options = NAND_NO_AUTOINCR;
  44 +
  45 +       rb532_nand_data.chip.chip_fixup = &rb532_nand_fixup;
  46  }
  47
  48