diff options
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/fsl_ifc_nand.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index a82913cac1..3cb487510a 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -269,14 +269,9 @@ static int is_blank(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl, /* returns nonzero if entire page is blank */ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl, - u32 *eccstat, unsigned int bufnum) + u32 eccstat, unsigned int bufnum) { - u32 reg = eccstat[bufnum / 4]; - int errors; - - errors = (reg >> ((3 - bufnum % 4) * 8)) & 15; - - return errors; + return (eccstat >> ((3 - bufnum % 4) * 8)) & 15; } /* @@ -290,7 +285,7 @@ static int fsl_ifc_run_command(struct mtd_info *mtd) struct fsl_ifc_runtime *ifc = ctrl->regs.rregs; u32 timeo = (CONFIG_SYS_HZ * 10) / 1000; u32 time_start; - u32 eccstat[8] = {0}; + u32 eccstat; int i; /* set the chip select for NAND Transaction */ @@ -320,20 +315,17 @@ static int fsl_ifc_run_command(struct mtd_info *mtd) if (ctrl->eccread) { int errors; int bufnum = ctrl->page & priv->bufnum_mask; - int sector = bufnum * chip->ecc.steps; - int sector_end = sector + chip->ecc.steps - 1; - - for (i = sector / 4; i <= sector_end / 4; i++) { - if (i >= ARRAY_SIZE(eccstat)) { - printf("%s: eccstat too small for %d\n", - __func__, i); - return -EIO; - } + int sector_start = bufnum * chip->ecc.steps; + int sector_end = sector_start + chip->ecc.steps - 1; + u32 *eccstat_regs; - eccstat[i] = ifc_in32(&ifc->ifc_nand.nand_eccstat[i]); - } + eccstat_regs = ifc->ifc_nand.nand_eccstat; + eccstat = ifc_in32(&eccstat_regs[sector_start / 4]); + + for (i = sector_start; i <= sector_end; i++) { + if ((i != sector_start) && !(i % 4)) + eccstat = ifc_in32(&eccstat_regs[i / 4]); - for (i = sector; i <= sector_end; i++) { errors = check_read_ecc(mtd, ctrl, eccstat, i); if (errors == 15) { |