From f25ac66c528553a38d349c563d67d0eebbdd77f9 Mon Sep 17 00:00:00 2001 From: Siva Durga Prasad Paladugu Date: Thu, 4 Jan 2018 16:04:22 +0530 Subject: [PATCH] nand: arasan_nfc: Use the calculated ecc address for updating ecc register 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 Signed-off-by: Michal Simek --- 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 70cb00e85f..3c9a0215c5 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); -- 2.39.5