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authorJagdish Gediya <jagdish.gediya@nxp.com>2018-03-22 01:08:10 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-28 18:23:01 +0200
commit7b6f657ad598b5dd561a7309290082a4b9f0dfb9 (patch)
tree372a0cb1c6c0db81f5c65b402f237ce7dfab1de6
parent7cc7ee831a356a9b208ff0e0d10ea132fa021423 (diff)
mtd: nand: fsl_ifc: Read ECCSTAT0 and ECCSTAT1 registers for IFC 2.0
commit 6b00c35138b404be98b85f4a703be594cbed501c upstream. Due to missing information in Hardware manual, current implementation doesn't read ECCSTAT0 and ECCSTAT1 registers for IFC 2.0. Add support to read ECCSTAT0 and ECCSTAT1 registers during ecccheck for IFC 2.0. Fixes: 656441478ed5 ("mtd: nand: ifc: Fix location of eccstat registers for IFC V1.0") Cc: stable@vger.kernel.org # v3.18+ Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com> Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/mtd/nand/fsl_ifc_nand.c6
-rw-r--r--include/linux/fsl_ifc.h6
2 files changed, 2 insertions, 10 deletions
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 398e8408a937..4005b427023c 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -227,11 +227,7 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
int sector_end = sector_start + chip->ecc.steps - 1;
__be32 *eccstat_regs;
- if (ctrl->version >= FSL_IFC_VERSION_2_0_0)
- eccstat_regs = ifc->ifc_nand.v2_nand_eccstat;
- else
- eccstat_regs = ifc->ifc_nand.v1_nand_eccstat;
-
+ eccstat_regs = ifc->ifc_nand.nand_eccstat;
eccstat = ifc_in32(&eccstat_regs[sector_start / 4]);
for (i = sector_start; i <= sector_end; i++) {
diff --git a/include/linux/fsl_ifc.h b/include/linux/fsl_ifc.h
index c332f0a45607..3fdfede2f0f3 100644
--- a/include/linux/fsl_ifc.h
+++ b/include/linux/fsl_ifc.h
@@ -734,11 +734,7 @@ struct fsl_ifc_nand {
u32 res19[0x10];
__be32 nand_fsr;
u32 res20;
- /* The V1 nand_eccstat is actually 4 words that overlaps the
- * V2 nand_eccstat.
- */
- __be32 v1_nand_eccstat[2];
- __be32 v2_nand_eccstat[6];
+ __be32 nand_eccstat[8];
u32 res21[0x1c];
__be32 nanndcr;
u32 res22[0x2];