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-rw-r--r--target/linux/rb532/patches-3.14/002-rb532_nand_fixup.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/target/linux/rb532/patches-3.14/002-rb532_nand_fixup.patch b/target/linux/rb532/patches-3.14/002-rb532_nand_fixup.patch
new file mode 100644
index 0000000000..916653da54
--- /dev/null
+++ b/target/linux/rb532/patches-3.14/002-rb532_nand_fixup.patch
@@ -0,0 +1,47 @@
+--- 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);
+@@ -275,6 +288,16 @@ static void __init parse_mac_addr(char *
+ /* 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) {
+@@ -293,6 +316,7 @@ 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;
+ }
+
+