rb532: rename patches directory to patches-4.1

[openwrt/staging/blogic.git] / target / linux / rb532 / patches-4.1 / 002-rb532_nand_fixup.patch

diff --git a/target/linux/rb532/patches-4.1/002-rb532_nand_fixup.patch b/target/linux/rb532/patches-4.1/002-rb532_nand_fixup.patch
new file mode 100644 (file)
index 0000000..5b1dd51
--- /dev/null
+++ b/target/linux/rb532/patches-4.1/002-rb532_nand_fixup.patch
@@ -0,0 +1,45 @@
+--- a/arch/mips/rb532/devices.c
++++ b/arch/mips/rb532/devices.c
+@@ -140,6 +140,19 @@ static struct platform_device cf_slot0 =
+ };
+
+ /* Resources and device for NAND */
++
++/*
++ * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
++ * will not be able to find the kernel that we load.  So set the oobinfo
++ * when creating the partitions
++ */
++static struct nand_ecclayout rb532_nand_ecclayout = {
++      .eccbytes       = 6,
++      .eccpos         = { 8, 9, 10, 13, 14, 15 },
++      .oobavail       = 9,
++      .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
++};
++
+ static int rb532_dev_ready(struct mtd_info *mtd)
+ {
+       return gpio_get_value(GPIO_RDY);
+@@ -254,6 +267,16 @@ static struct platform_device *rb532_dev
+ /* NAND definitions */
+ #define NAND_CHIP_DELAY 25
+
++static int rb532_nand_fixup(struct mtd_info *mtd)
++{
++      struct nand_chip *chip = mtd->priv;
++
++      if (mtd->writesize == 512)
++              chip->ecc.layout = &rb532_nand_ecclayout;
++
++      return 0;
++}
++
+ static void __init rb532_nand_setup(void)
+ {
+       switch (mips_machtype) {
+@@ -272,6 +295,7 @@ static void __init rb532_nand_setup(void
+       rb532_nand_data.chip.nr_partitions = ARRAY_SIZE(rb532_partition_info);
+       rb532_nand_data.chip.partitions = rb532_partition_info;
+       rb532_nand_data.chip.chip_delay = NAND_CHIP_DELAY;
++      rb532_nand_data.chip.chip_fixup = &rb532_nand_fixup;
+ }