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authorMagnus Lilja <lilja.magnus@gmail.com>2010-01-17 17:46:10 +0100
committerScott Wood <scottwood@freescale.com>2010-01-19 17:08:13 -0600
commitc4832dffff20519e72879a8da010174ac0526141 (patch)
tree38b2d8672d650a70af43cff45f5e4224ff631f32 /drivers/mtd/nand
parentf6a9748e3261fdccdeb78a2b58e6ad538ba54496 (diff)
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MXC: Add large page oob layout for i.MX31 NAND controller.
Import the large page oob layout from Linux mxc_nand.c driver. The CONFIG_SYS_NAND_LARGEPAGE option is used to activate the large page oob layout. Run time detection is not supported as this moment. This has been tested on the i.MX31 PDK board with a large page NAND device. Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/mxc_nand.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index fc111b5..b2b612e 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -149,6 +149,13 @@ static struct nand_ecclayout nand_soft_eccoob = {
};
#endif
+static struct nand_ecclayout nand_hw_eccoob_largepage = {
+ .eccbytes = 20,
+ .eccpos = {6, 7, 8, 9, 10, 22, 23, 24, 25, 26,
+ 38, 39, 40, 41, 42, 54, 55, 56, 57, 58},
+ .oobfree = {{2, 4}, {11, 10}, {27, 10}, {43, 10}, {59, 5}, }
+};
+
#ifdef CONFIG_MX27
static int is_16bit_nand(void)
{
@@ -902,7 +909,12 @@ int board_nand_init(struct nand_chip *this)
if (is_16bit_nand())
this->options |= NAND_BUSWIDTH_16;
+#ifdef CONFIG_SYS_NAND_LARGEPAGE
+ host->pagesize_2k = 1;
+ this->ecc.layout = &nand_hw_eccoob_largepage;
+#else
host->pagesize_2k = 0;
+#endif
return err;
}