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| author | Han Xu <han.xu@nxp.com> | 2016-03-28 11:26:51 -0500 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2016-04-13 13:27:10 +0800 |
| commit | 772af34b1216acc8e6a1a3faf43fef7c90b26a2f (patch) | |
| tree | 867ba1bcb582f62c8b4147fe1e0dbfd1d3133924 | |
| parent | 67c19ad1a21780783efbcf1899cb6fdd7726ead7 (diff) | |
| download | u-boot-imx-772af34b1216acc8e6a1a3faf43fef7c90b26a2f.zip u-boot-imx-772af34b1216acc8e6a1a3faf43fef7c90b26a2f.tar.gz u-boot-imx-772af34b1216acc8e6a1a3faf43fef7c90b26a2f.tar.bz2 | |
MLK-12603: mtd: gpmi: may use legacy bch geometry in u-boot
provide one config "CONFIG_NAND_MXS_BCH_LEGACY_GEO" to keep using legacy
bch geometry.
NOTICE: the feature must be enabled/disabled in both u-boot and kernel.
Signed-off-by: Han Xu <han.xu@nxp.com>
(cherry picked from commit 0abc9c182c24f88522bd74fa1b53cd2fa3477184)
| -rw-r--r-- | drivers/mtd/nand/mxs_nand.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 871f5ab..2d75124 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -249,6 +249,12 @@ static int mxs_nand_get_ecc_strength(struct mtd_info *mtd) } else { ecc_strength = chip->ecc_strength_ds; ecc_strength += ecc_strength & 1; +#if defined(CONFIG_NAND_MXS_BCH_LEGACY_GEO) + ecc_strength = ((page_oob_size - MXS_NAND_METADATA_SIZE) * 8) + /(galois_field * mxs_nand_ecc_chunk_cnt(mtd->writesize)); + ecc_strength += ecc_strength & 1; + ecc_strength = min(ecc_strength, MXS_NAND_MAX_ECC_STRENGTH); +#endif } return 0; }; |