Instead of hardcoding use the pre-calculated chip->ecc.steps for
configuring number of sectors to process with the BCH algorithm.
This also avoids unnecessary access to the ECC_CONFIG register in
omap_calculate_ecc_bch().
Signed-off-by: Roger Quadros <rog...@ti.com>
---
drivers/mtd/nand/omap2.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 5b8739c..6f3d7cd 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1066,10 +1066,10 @@ static void __maybe_unused omap_enable_hwecc_bch(struct
mtd_info *mtd, int mode)
unsigned int ecc_size1, ecc_size0;
/* GPMC configurations for calculating ECC */
+ nsectors = chip->ecc.steps;
switch (ecc_opt) {
case OMAP_ECC_BCH4_CODE_HW_DETECTION_SW:
bch_type = 0;
- nsectors = 1;
if (mode == NAND_ECC_READ) {
wr_mode = BCH_WRAPMODE_6;
ecc_size0 = BCH_ECC_SIZE0;
@@ -1082,7 +1082,6 @@ static void __maybe_unused omap_enable_hwecc_bch(struct
mtd_info *mtd, int mode)
break;
case OMAP_ECC_BCH4_CODE_HW:
bch_type = 0;
- nsectors = chip->ecc.steps;
if (mode == NAND_ECC_READ) {
wr_mode = BCH_WRAPMODE_1;
ecc_size0 = BCH4R_ECC_SIZE0;
@@ -1095,7 +1094,6 @@ static void __maybe_unused omap_enable_hwecc_bch(struct
mtd_info *mtd, int mode)
break;
case OMAP_ECC_BCH8_CODE_HW_DETECTION_SW:
bch_type = 1;
- nsectors = 1;
if (mode == NAND_ECC_READ) {
wr_mode = BCH_WRAPMODE_6;
ecc_size0 = BCH_ECC_SIZE0;
@@ -1108,7 +1106,6 @@ static void __maybe_unused omap_enable_hwecc_bch(struct
mtd_info *mtd, int mode)
break;
case OMAP_ECC_BCH8_CODE_HW:
bch_type = 1;
- nsectors = chip->ecc.steps;
if (mode == NAND_ECC_READ) {
wr_mode = BCH_WRAPMODE_1;
ecc_size0 = BCH8R_ECC_SIZE0;
@@ -1121,7 +1118,6 @@ static void __maybe_unused omap_enable_hwecc_bch(struct
mtd_info *mtd, int mode)
break;
case OMAP_ECC_BCH16_CODE_HW:
bch_type = 0x2;
- nsectors = chip->ecc.steps;
if (mode == NAND_ECC_READ) {
wr_mode = 0x01;
ecc_size0 = 52; /* ECC bits in nibbles per sector */
@@ -1176,6 +1172,7 @@ static int __maybe_unused omap_calculate_ecc_bch(struct
mtd_info *mtd,
{
struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
mtd);
+ struct nand_chip *chip = mtd->priv;
int eccbytes = info->nand.ecc.bytes;
struct gpmc_nand_regs *gpmc_regs = &info->reg;
u8 *ecc_code;
@@ -1183,7 +1180,7 @@ static int __maybe_unused omap_calculate_ecc_bch(struct
mtd_info *mtd,
u32 val;
int i, j;
- nsectors = ((readl(info->reg.gpmc_ecc_config) >> 4) & 0x7) + 1;
+ nsectors = chip->ecc.steps;
for (i = 0; i < nsectors; i++) {
ecc_code = ecc_calc;
switch (info->ecc_opt) {
--
1.8.3.2
--
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