diff options
Diffstat (limited to 'drivers/mtd/nand/s3c2410.c')
-rw-r--r-- | drivers/mtd/nand/s3c2410.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index e8e030171ec4..0ddfd6de75c5 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c | |||
@@ -418,6 +418,15 @@ static void s3c2410_nand_enable_hwecc(struct mtd_info *mtd, int mode) | |||
418 | writel(ctrl, info->regs + S3C2410_NFCONF); | 418 | writel(ctrl, info->regs + S3C2410_NFCONF); |
419 | } | 419 | } |
420 | 420 | ||
421 | static void s3c2412_nand_enable_hwecc(struct mtd_info *mtd, int mode) | ||
422 | { | ||
423 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); | ||
424 | unsigned long ctrl; | ||
425 | |||
426 | ctrl = readl(info->regs + S3C2440_NFCONT); | ||
427 | writel(ctrl | S3C2412_NFCONT_INIT_MAIN_ECC, info->regs + S3C2440_NFCONT); | ||
428 | } | ||
429 | |||
421 | static void s3c2440_nand_enable_hwecc(struct mtd_info *mtd, int mode) | 430 | static void s3c2440_nand_enable_hwecc(struct mtd_info *mtd, int mode) |
422 | { | 431 | { |
423 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); | 432 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); |
@@ -441,6 +450,20 @@ static int s3c2410_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u | |||
441 | return 0; | 450 | return 0; |
442 | } | 451 | } |
443 | 452 | ||
453 | static int s3c2412_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) | ||
454 | { | ||
455 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); | ||
456 | unsigned long ecc = readl(info->regs + S3C2412_NFMECC0); | ||
457 | |||
458 | ecc_code[0] = ecc; | ||
459 | ecc_code[1] = ecc >> 8; | ||
460 | ecc_code[2] = ecc >> 16; | ||
461 | |||
462 | pr_debug("calculate_ecc: returning ecc %02x,%02x,%02x\n", ecc_code[0], ecc_code[1], ecc_code[2]); | ||
463 | |||
464 | return 0; | ||
465 | } | ||
466 | |||
444 | static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) | 467 | static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) |
445 | { | 468 | { |
446 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); | 469 | struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); |
@@ -618,6 +641,10 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, | |||
618 | break; | 641 | break; |
619 | 642 | ||
620 | case TYPE_S3C2412: | 643 | case TYPE_S3C2412: |
644 | chip->ecc.hwctl = s3c2412_nand_enable_hwecc; | ||
645 | chip->ecc.calculate = s3c2412_nand_calculate_ecc; | ||
646 | break; | ||
647 | |||
621 | case TYPE_S3C2440: | 648 | case TYPE_S3C2440: |
622 | chip->ecc.hwctl = s3c2440_nand_enable_hwecc; | 649 | chip->ecc.hwctl = s3c2440_nand_enable_hwecc; |
623 | chip->ecc.calculate = s3c2440_nand_calculate_ecc; | 650 | chip->ecc.calculate = s3c2440_nand_calculate_ecc; |