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powerpc/85xx: fix NAND_CMD_READID read bytes number

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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>
This commit is contained in:
Shaohui Xie 2011-06-13 10:23:12 +08:00 committed by Kumar Gala
parent 5629937872
commit c02a02ee4d
1 changed files with 3 additions and 3 deletions
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6
drivers/mtd/nand/fsl_elbc_nand.c
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@ -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;