From: Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com
This patch corrects the ecc address calculation before updating to ecc register. The ecc address has to be calculated based on page, oob and ecc sizes of the device.
Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com --- drivers/mtd/nand/arasan_nfc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/arasan_nfc.c b/drivers/mtd/nand/arasan_nfc.c index 70cb00e..3c9a021 100644 --- a/drivers/mtd/nand/arasan_nfc.c +++ b/drivers/mtd/nand/arasan_nfc.c @@ -1133,7 +1133,7 @@ static void arasan_check_ondie(struct mtd_info *mtd) static int arasan_nand_ecc_init(struct mtd_info *mtd) { int found = -1; - u32 regval, eccpos_start, i; + u32 regval, eccpos_start, i, eccaddr; struct nand_chip *nand_chip = mtd_to_nand(mtd);
for (i = 0; i < ARRAY_SIZE(ecc_matrix); i++) { @@ -1152,7 +1152,10 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd) if (found < 0) return 1;
- regval = ecc_matrix[found].eccaddr | + eccaddr = mtd->writesize + mtd->oobsize - + ecc_matrix[found].eccsize; + + regval = eccaddr | (ecc_matrix[found].eccsize << ARASAN_NAND_ECC_SIZE_SHIFT) | (ecc_matrix[found].bch << ARASAN_NAND_ECC_BCH_SHIFT); writel(regval, &arasan_nand_base->ecc_reg);