diff options
| author | Jagdish Gediya | 2018-05-02 01:20:57 +0530 |
|---|---|---|
| committer | York Sun | 2018-05-09 09:17:51 -0500 |
| commit | e8c669a3e6ec9b33aea55e957024f97300b99c1c (patch) | |
| tree | 3b5a16e00f49927421f1be99ae6a84b6fda12fa9 /drivers/mtd/nand/fsl_ifc_nand.c | |
| parent | 8b40f22900f3618ab1b83d15d078ab6f75c7c800 (diff) | |
mtd: nand: fsl_ifc: Fix nand waitfunc return value
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.gediya@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'drivers/mtd/nand/fsl_ifc_nand.c')
| -rw-r--r-- | drivers/mtd/nand/fsl_ifc_nand.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 3cb487510ac..a47226bd215 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -700,6 +700,7 @@ 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; @@ -720,10 +721,10 @@ 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, |