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mtd: rawnand: hynix: don't try read-retry on SLC NANDs

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Some SLC NANDs like H27U4G8F2D expose a valid JEDEC ID yet they don't
support the read-retry mechanism, and fail.
Since SLC NANDs don't require read-retry, continue only if the bits per
cell is bigger than 1.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Hector Palacios 2025-07-04 11:41:09 +02:00 committed by Miquel Raynal
parent e1e6b933c5
commit 125100566b
1 changed files with 2 additions and 2 deletions
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4
drivers/mtd/nand/raw/nand_hynix.c
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@ -377,9 +377,9 @@ static int hynix_nand_rr_init(struct nand_chip *chip)
/*
* We only support read-retry for 1xnm NANDs, and those NANDs all
* expose a valid JEDEC ID.
* expose a valid JEDEC ID. SLC NANDs don't require read-retry.
*/
if (valid_jedecid) {
if (valid_jedecid && nanddev_bits_per_cell(&chip->base) > 1) {
u8 nand_tech = chip->id.data[5] >> 4;
/* 1xnm technology */