mtd: atmel_nand: remove pmecc_sector_number, use ecc.steps instead

For PMECC, the pmecc_sector_number has same meaning as ecc.steps.
So use ecc.steps to replace the pmecc_sector_number.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index d1e502f8dbd0b647b6506c66d45887d7a493b09c..5c76704f4080c0db1ec09c58ffb6947ef76f2153 100644 (file)
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -132,7 +132,6 @@ struct atmel_nand_host {
        u32                     pmecc_lookup_table_offset_1024;
 
        int                     pmecc_bytes_per_sector;
-       int                     pmecc_sector_number;
        int                     pmecc_degree;   /* Degree of remainders */
        int                     pmecc_cw_len;   /* Length of codeword */
 
@@ -877,7 +876,7 @@ static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf,
        return 0;
 
 normal_check:
-       for (i = 0; i < host->pmecc_sector_number; i++) {
+       for (i = 0; i < nand_chip->ecc.steps; i++) {
                err_nbr = 0;
                if (pmecc_stat & 0x1) {
                        buf_pos = buf + i * host->pmecc_sector_size;
@@ -987,7 +986,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
                cpu_relax();
        }
 
-       for (i = 0; i < host->pmecc_sector_number; i++) {
+       for (i = 0; i < chip->ecc.steps; i++) {
                for (j = 0; j < host->pmecc_bytes_per_sector; j++) {
                        int pos;
 
@@ -1034,7 +1033,7 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd)
        else if (host->pmecc_sector_size == 1024)
                val |= PMECC_CFG_SECTOR1024;
 
-       switch (host->pmecc_sector_number) {
+       switch (nand_chip->ecc.steps) {
        case 1:
                val |= PMECC_CFG_PAGE_1SECTOR;
                break;
@@ -1187,18 +1186,17 @@ static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
                host->pmecc_degree = (sector_size == 512) ?
                        PMECC_GF_DIMENSION_13 : PMECC_GF_DIMENSION_14;
                host->pmecc_cw_len = (1 << host->pmecc_degree) - 1;
-               host->pmecc_sector_number = mtd->writesize / sector_size;
                host->pmecc_bytes_per_sector = pmecc_get_ecc_bytes(
                        cap, sector_size);
                host->pmecc_alpha_to = pmecc_get_alpha_to(host);
                host->pmecc_index_of = host->pmecc_rom_base +
                        host->pmecc_lookup_table_offset;
 
-               nand_chip->ecc.steps = host->pmecc_sector_number;
                nand_chip->ecc.strength = cap;
                nand_chip->ecc.bytes = host->pmecc_bytes_per_sector;
-               nand_chip->ecc.total = host->pmecc_bytes_per_sector *
-                                      host->pmecc_sector_number;
+               nand_chip->ecc.steps = mtd->writesize / sector_size;
+               nand_chip->ecc.total = nand_chip->ecc.bytes *
+                       nand_chip->ecc.steps;
                if (nand_chip->ecc.total > mtd->oobsize - 2) {
                        dev_err(host->dev, "No room for ECC bytes\n");
                        err_no = -EINVAL;