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authorBarry Song <barry.song@analog.com>2010-08-05 15:07:42 (GMT)
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-08-05 15:14:09 (GMT)
commitfd508da2208696db146cd1be2bb2e8b799f6e3a2 (patch)
treec94f40fb8afa74e5ed22d0823478455a0c431a21
parent085d45fb5216c25b69103e5d861fabdc4389e221 (diff)
downloadlinux-fsl-qoriq-fd508da2208696db146cd1be2bb2e8b799f6e3a2.tar.xz
mtd: Blackfin NFC: make sure to check NAND_ALE in cmd_ctrl
The NAND base may send some controls which are neither CLE nor ALE, so we need to explicitly check both instead of assuming things are always one or the other. Otherwise, we sometimes send out illegal addresses to the NAND device. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r--drivers/mtd/nand/bf5xx_nand.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index ca39819..5c999e0 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -203,7 +203,7 @@ static void bf5xx_nand_hwcontrol(struct mtd_info *mtd, int cmd,
if (ctrl & NAND_CLE)
bfin_write_NFC_CMD(cmd);
- else
+ else if (ctrl & NAND_ALE)
bfin_write_NFC_ADDR(cmd);
SSYNC();
}