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authorWu, Josh <Josh.wu@atmel.com>2014-08-08 17:12:35 +0800
committerBrian Norris <computersforpeace@gmail.com>2014-09-17 23:05:11 -0700
commit022a478ce650f5c36d2a9badfd805368a90fb506 (patch)
treecbe973f9ba39f01c39fa4bd7371fd2e468a69c3d
parentc9447fff34aacc04f2e7df39612d2d6e234643f3 (diff)
mtd: atmel_nand: remove pmecc_bytes_per_sector, use chip->ecc.bytes instead
For PMECC, the pmecc_bytes_per_sector has same meaning as ecc.bytes. So remove pmecc_bytes_per_sector and use ecc.bytes instead. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
-rw-r--r--drivers/mtd/nand/atmel_nand.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 5c76704f4080..19d1e9d17bf9 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -131,7 +131,6 @@ struct atmel_nand_host {
u32 pmecc_lookup_table_offset_512;
u32 pmecc_lookup_table_offset_1024;
- int pmecc_bytes_per_sector;
int pmecc_degree; /* Degree of remainders */
int pmecc_cw_len; /* Length of codeword */
@@ -843,7 +842,7 @@ static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc,
pos, bit_pos, err_byte, *(buf + byte_pos));
} else {
/* Bit flip in OOB area */
- tmp = sector_num * host->pmecc_bytes_per_sector
+ tmp = sector_num * nand_chip->ecc.bytes
+ (byte_pos - sector_size);
err_byte = ecc[tmp];
ecc[tmp] ^= (1 << bit_pos);
@@ -892,7 +891,7 @@ normal_check:
return -EIO;
} else {
pmecc_correct_data(mtd, buf_pos, ecc, i,
- host->pmecc_bytes_per_sector, err_nbr);
+ nand_chip->ecc.bytes, err_nbr);
mtd->ecc_stats.corrected += err_nbr;
total_err += err_nbr;
}
@@ -987,10 +986,10 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
}
for (i = 0; i < chip->ecc.steps; i++) {
- for (j = 0; j < host->pmecc_bytes_per_sector; j++) {
+ for (j = 0; j < chip->ecc.bytes; j++) {
int pos;
- pos = i * host->pmecc_bytes_per_sector + j;
+ pos = i * chip->ecc.bytes + j;
chip->oob_poi[eccpos[pos]] =
pmecc_readb_ecc_relaxed(host->ecc, i, j);
}
@@ -1186,14 +1185,12 @@ 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_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.strength = cap;
- nand_chip->ecc.bytes = host->pmecc_bytes_per_sector;
+ nand_chip->ecc.bytes = pmecc_get_ecc_bytes(cap, sector_size);
nand_chip->ecc.steps = mtd->writesize / sector_size;
nand_chip->ecc.total = nand_chip->ecc.bytes *
nand_chip->ecc.steps;