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mxs_nand: don't check zero count when ECC reading with randomizer

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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 <han.xu@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Han Xu 2020-05-04 22:09:02 +08:00 committed by Stefano Babic
parent a59691280d
commit f7bb012ab7
1 changed files with 3 additions and 2 deletions
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5
drivers/mtd/nand/raw/mxs_nand.c
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@ -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;