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mtd/nand: Fix IFC driver to support 2K NAND page 

1) OOB area should be updated irrespective of NAND page size. Earlier it was
updated only for 512byte NAND page.

2) During OOB update fbcr should be equal to OOB size.

Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Prabhakar Kushwaha 2012-01-20 18:39:05 +05:30 committed by Scott Wood
parent fb49454b1b
commit d90361285c
1 changed files with 13 additions and 14 deletions
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27
drivers/mtd/nand/fsl_ifc_nand.c
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@ -448,21 +448,19 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
out_be32(&ifc->ifc_nand.nand_fir1,
(IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT));
if (column >= mtd->writesize) {
/* OOB area --> READOOB */
column -= mtd->writesize;
nand_fcr0 |= NAND_CMD_READOOB <<
IFC_NAND_FCR0_CMD0_SHIFT;
ctrl->oob = 1;
} else if (column < 256) {
/* First 256 bytes --> READ0 */
nand_fcr0 |= NAND_CMD_READ0 << FCR_CMD0_SHIFT;
} else {
/* Second 256 bytes --> READ1 */
nand_fcr0 |= NAND_CMD_READ1 << FCR_CMD0_SHIFT;
}
if (column >= mtd->writesize)
nand_fcr0 |=
NAND_CMD_READOOB << IFC_NAND_FCR0_CMD0_SHIFT;
else
nand_fcr0 |=
NAND_CMD_READ0 << IFC_NAND_FCR0_CMD0_SHIFT;
}
if (column >= mtd->writesize) {
/* OOB area --> READOOB */
column -= mtd->writesize;
ctrl->oob = 1;
}
out_be32(&ifc->ifc_nand.nand_fcr0, nand_fcr0);
set_addr(mtd, column, page_addr, ctrl->oob);
return;
@ -471,7 +469,8 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* PAGEPROG reuses all of the setup from SEQIN and adds the length */
case NAND_CMD_PAGEPROG:
if (ctrl->oob)
out_be32(&ifc->ifc_nand.nand_fbcr, ctrl->index);
out_be32(&ifc->ifc_nand.nand_fbcr,
ctrl->index - ctrl->column);
else
out_be32(&ifc->ifc_nand.nand_fbcr, 0);