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authorMatthieu CASTET <matthieu.castet@parrot.com>2012-11-06 14:51:43 +0400
committerArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-12-03 18:36:52 +0400
commitff3206b2450499203532af2505a7f6f8413e92c0 (patch)
tree36b2d24c954bd7901c0d46a1c84b135f20d29ddc /drivers/mtd
parent64b37b2a63eb2f80b65c7185f0013f8ffc637ae3 (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/nand_base.c2
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' ||