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mtd: nand: onfi need to be probed in 8 bits mode

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- NAND_CMD_READID want an address that it is not scaled on x16 device (it is always 0x20)
- NAND_CMD_PARAM want 8 bits data

Signed-off-by: Matthieu CASTET <[email protected]>
Signed-off-by: Artem Bityutskiy <[email protected]>
This commit is contained in:
Matthieu CASTET 2012-11-06 11:51:43 +01:00 • committed by Artem Bityutskiy
commit ff3206b245
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/nand_base.c
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@ -2857,6 +2857,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
int i;
int val;
/* ONFI need to be probed in 8 bits mode */
WARN_ON(chip->options & NAND_BUSWIDTH_16);
/* Try ONFI for unknown chip or LP */
chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1);
if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' ||