Root/target/linux/rb532/patches-2.6.32/002-rb532_nand_fixup.patch

1--- a/arch/mips/rb532/devices.c
2+++ b/arch/mips/rb532/devices.c
3@@ -139,6 +139,19 @@ 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@@ -280,6 +293,16 @@ 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@@ -299,6 +322,8 @@ 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 
49

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