4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jagdish Gediya jagdish.gediya@nxp.com
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
--- drivers/mtd/nand/fsl_ifc_nand.c | 6 +----- include/linux/fsl_ifc.h | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-)
--- 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 m 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++) { --- 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];