From 053dda1f184cf31472444fcdcf6b0543a40aa193 Mon Sep 17 00:00:00 2001 From: Han Xu Date: Thu, 30 Apr 2015 14:41:28 -0500 Subject: MLK-10740: add maximum ecc platfrom can support Add maximum ecc strength for each platfrom to avoid the calculated ecc exceed the limitation. Signed-off-by: Han Xu (cherry picked from commit fdc5bac6ae8b699924c4e84b86e38aa73f694827) --- drivers/mtd/nand/mxs_nand.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index e76d9e1..0dcdbcf 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -41,6 +41,12 @@ #define MXS_NAND_BCH_TIMEOUT 10000 +#if (defined(CONFIG_MX6SX) || defined(CONFIG_MX7)) +#define MXS_NAND_MAX_ECC_STRENGTH 62 +#else +#define MXS_NAND_MAX_ECC_STRENGTH 40 +#endif + int chunk_data_chunk_size = MXS_NAND_CHUNK_DATA_CHUNK_SIZE; int galois_field = 13; @@ -156,7 +162,7 @@ static inline uint32_t mxs_nand_get_ecc_strength(uint32_t page_data_size, /* We need the minor even number. */ ecc_strength -= ecc_strength & 1; - return ecc_strength; + return min(ecc_strength, MXS_NAND_MAX_ECC_STRENGTH); } static inline uint32_t mxs_nand_get_mark_offset(uint32_t page_data_size, -- cgit v1.1