increase the delay to 75us to support the 8k bytes page nand flash
Signed-off-by: Josh Wu <josh...@atmel.com>
---
drivers/mtd/nand/atmel_nand.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index da83f06..2320afe 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -827,6 +827,7 @@ static int atmel_pmecc_nand_init_params(struct nand_chip
*nand,
switch (mtd->writesize) {
case 2048:
case 4096:
+ case 8192:
host->pmecc_degree = (sector_size == 512) ?
PMECC_GF_DIMENSION_13 : PMECC_GF_DIMENSION_14;
host->pmecc_cw_len = (1 << host->pmecc_degree) - 1;
@@ -840,6 +841,13 @@ static int atmel_pmecc_nand_init_params(struct nand_chip
*nand,
nand->ecc.steps = 1;
nand->ecc.bytes = host->pmecc_bytes_per_sector *
host->pmecc_sector_number;
+
+ if (nand->ecc.bytes > MTD_MAX_ECCPOS_ENTRIES_LARGE) {
+ dev_err(host->dev, "too large eccpos entries. max
support ecc.bytes is %d\n",
+ MTD_MAX_ECCPOS_ENTRIES_LARGE);
+ return -EINVAL;
+ }
+
if (nand->ecc.bytes > mtd->oobsize - 2) {
printk(KERN_ERR "No room for ECC bytes\n");
return -EINVAL;
@@ -1186,7 +1194,7 @@ int atmel_nand_chip_init(int devnum, ulong base_addr)
#ifdef CONFIG_SYS_NAND_READY_PIN
nand->dev_ready = at91_nand_ready;
#endif
- nand->chip_delay = 20;
+ nand->chip_delay = 75;
ret = nand_scan_ident(mtd, CONFIG_SYS_NAND_MAX_CHIPS, NULL);
if (ret)
--
1.7.9.5
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