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mtd: nand: omap_elm: use bch_type instead of nibble count to differentiate between BCH4/BCH8/BCH16

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ELM hardware engine support ECC error detection for multiple ECC strengths like
 +------+------------------------+
 |Type  | ECC syndrome length    |
 +------+------------------------+
 |BCH4  | 6.5 bytes = 13 nibbles |
 |BCH8  | 13 byte = 26 nibbles   |
 |BCH16 | 26 bytes = 52 nibbles  |
 +------+------------------------+

Current implementation of omap_elm driver uses ECC syndrom length (in 'nibbles')
to differentiate between BCH4/BCH8/BCH16. This patch replaces it with 'bch_type'

Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
pekon gupta 2014-04-11 12:55:30 +05:30 • committed by Tom Rini
parent b98c5755c0
commit 41bbe4dd49
3 changed files with 11 additions and 21 deletions
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2
include/linux/mtd/omap_elm.h
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@ -68,7 +68,7 @@ struct elm {
struct location error_location[8]; /* 0x800 */
};
int elm_check_error(u8 *syndrome, u32 nibbles, u32 *error_count,
int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,
u32 *error_locations);
int elm_config(enum bch_level level);
void elm_reset(void);