From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 .../linux/rb532/patches/002-rb532_nand_fixup.patch | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 target/linux/rb532/patches/002-rb532_nand_fixup.patch

(limited to 'target/linux/rb532/patches/002-rb532_nand_fixup.patch')

diff --git a/target/linux/rb532/patches/002-rb532_nand_fixup.patch b/target/linux/rb532/patches/002-rb532_nand_fixup.patch
new file mode 100644
index 0000000..6f88599
--- /dev/null
+++ b/target/linux/rb532/patches/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);
+@@ -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;
+ }
+ 
+ 
-- 
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