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| author | Matthieu CASTET <matthieu.castet@parrot.com> | 2012-11-06 14:51:43 +0400 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-12-03 18:36:52 +0400 |
| commit | ff3206b2450499203532af2505a7f6f8413e92c0 (patch) | |
| tree | 36b2d24c954bd7901c0d46a1c84b135f20d29ddc | |
| parent | 64b37b2a63eb2f80b65c7185f0013f8ffc637ae3 (diff) | |
| download | linux-ff3206b2450499203532af2505a7f6f8413e92c0.tar.xz | |
mtd: nand: onfi need to be probed in 8 bits mode
- 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 <matthieu.castet@parrot.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5851c51ac2df..0ac49ca58524 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -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' || |