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mtd: nand: use elbc_fcm_ctrl->oob to set FPAR_MS bit of FPAR

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On both of large-page chip and small-page chip, we always should use
'elbc_fcm_ctrl->oob' to set the FPAR_LP_MS/FPAR_SP_MS bit of FPAR, don't
use a overflowed 'column' to set it.

Signed-off-by: Liu Shuo <b35362@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Liu Shuo 2011-12-04 12:31:36 +08:00 committed by David Woodhouse
parent b604436cb0
commit a9a552f0bf
1 changed files with 11 additions and 7 deletions
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18
drivers/mtd/nand/fsl_elbc_nand.c
View file

@ -407,9 +407,17 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
page_addr, column);
elbc_fcm_ctrl->column = column;
elbc_fcm_ctrl->oob = 0;
elbc_fcm_ctrl->use_mdr = 1;
if (column >= mtd->writesize) {
/* OOB area */
column -= mtd->writesize;
elbc_fcm_ctrl->oob = 1;
} else {
WARN_ON(column != 0);
elbc_fcm_ctrl->oob = 0;
}
fcr = (NAND_CMD_STATUS << FCR_CMD1_SHIFT) |
(NAND_CMD_SEQIN << FCR_CMD2_SHIFT) |
(NAND_CMD_PAGEPROG << FCR_CMD3_SHIFT);
@ -434,16 +442,12 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
(FIR_OP_CW1 << FIR_OP6_SHIFT) |
(FIR_OP_RS << FIR_OP7_SHIFT));
if (column >= mtd->writesize) {
if (elbc_fcm_ctrl->oob)
/* OOB area --> READOOB */
column -= mtd->writesize;
fcr |= NAND_CMD_READOOB << FCR_CMD0_SHIFT;
elbc_fcm_ctrl->oob = 1;
} else {
WARN_ON(column != 0);
else
/* First 256 bytes --> READ0 */
fcr |= NAND_CMD_READ0 << FCR_CMD0_SHIFT;
}
}
out_be32(&lbc->fcr, fcr);