From a9a552f0bf6258c3593e8887c7212f0fbec8b44c Mon Sep 17 00:00:00 2001 From: Liu Shuo Date: Sun, 4 Dec 2011 12:31:36 +0800 Subject: [PATCH] mtd: nand: use elbc_fcm_ctrl->oob to set FPAR_MS bit of FPAR 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 Signed-off-by: Li Yang Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/fsl_elbc_nand.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index f2f6e87..c554c2f 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -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); -- 2.7.4