As per the IFC hardware manual, Most significant byte in
nand_fsr register is the outcome of NAND READ STATUS command.
So status value need to be shifted as per the nand
framework requirement.
Signed-off-by: Jagdish Gediya <jagdish.ged...@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushw...@nxp.com>
---
Changes for v2:
- Change the waitfunc return value according to semantic
enforced by framework.
Changes for v3:
- Change commit message as per York's suggestion.
drivers/mtd/nand/fsl_ifc_nand.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index c36043d..9bf4d71 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -701,6 +701,7 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct
nand_chip *chip)
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
u32 nand_fsr;
+ int status;
if (ctrl->status != IFC_NAND_EVTER_STAT_OPC)
return NAND_STATUS_FAIL;
@@ -721,10 +722,10 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct
nand_chip *chip)
return NAND_STATUS_FAIL;
nand_fsr = ifc_in32(&ifc->ifc_nand.nand_fsr);
+ status = nand_fsr >> 24;
/* Chip sometimes reporting write protect even when it's not */
- nand_fsr = nand_fsr | NAND_STATUS_WP;
- return nand_fsr;
+ return status | NAND_STATUS_WP;
}
static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
--
2.7.4
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