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authorShaohui Xie <Shaohui.Xie@freescale.com>2011-06-13 10:23:12 +0800
committerKumar Gala <galak@kernel.crashing.org>2011-06-22 06:08:48 -0500
commitc02a02ee4db5cd8b95ee3cc705b535f443612583 (patch)
tree7c4a3cec2b88b157bd0dfdd9a1147f553da4aaa7 /drivers/mtd/nand
parent56299378726d5f2ba8d3c8cbbd13cb280ba45e4f (diff)
powerpc/85xx: fix NAND_CMD_READID read bytes number
when nand_get_flash_type() is called, it will read 8 bytes of ID instead of 5, but the driver only read 5 bytes, so kernel will dump error messages like: fsl-lbc ffe124000.localbus: read_byte beyond end of buffer fsl-lbc ffe124000.localbus: read_byte beyond end of buffer fsl-lbc ffe124000.localbus: read_byte beyond end of buffer Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/fsl_elbc_nand.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 0bb254c7d2b..33d8aad8bba 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -339,9 +339,9 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
(FIR_OP_UA << FIR_OP1_SHIFT) |
(FIR_OP_RBW << FIR_OP2_SHIFT));
out_be32(&lbc->fcr, NAND_CMD_READID << FCR_CMD0_SHIFT);
- /* 5 bytes for manuf, device and exts */
- out_be32(&lbc->fbcr, 5);
- elbc_fcm_ctrl->read_bytes = 5;
+ /* nand_get_flash_type() reads 8 bytes of entire ID string */
+ out_be32(&lbc->fbcr, 8);
+ elbc_fcm_ctrl->read_bytes = 8;
elbc_fcm_ctrl->use_mdr = 1;
elbc_fcm_ctrl->mdr = 0;