From f7bb012ab7e19d3ede6c0e9a39edd6a37bd598ff Mon Sep 17 00:00:00 2001 From: Han Xu Date: Mon, 4 May 2020 22:09:02 +0800 Subject: [PATCH] mxs_nand: don't check zero count when ECC reading with randomizer When enabled randomizer during ECC reading, the controller reported it's erased page. Checking zero count will cause data get modified to all 0xFF. Stop checking during randomizer to workaround this issue. Signed-off-by: Han Xu Signed-off-by: Peng Fan --- drivers/mtd/nand/raw/mxs_nand.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/mxs_nand.c b/drivers/mtd/nand/raw/mxs_nand.c index b6e65c616d..3fd21e51f2 100644 --- a/drivers/mtd/nand/raw/mxs_nand.c +++ b/drivers/mtd/nand/raw/mxs_nand.c @@ -773,8 +773,9 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand, continue; if (status[i] == 0xff) { - if (is_mx6dqp() || is_mx7() || - is_mx6ul() || is_imx8() || is_imx8m()) + if (!nand_info->en_randomizer && + (is_mx6dqp() || is_mx7() || is_mx6ul() || + is_imx8() || is_imx8m())) if (readl(&bch_regs->hw_bch_debug1)) flag = 1; continue; -- 2.25.1