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>

diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 0bb254c..33d8aad 100644 (file)
--- 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;