diff options
Diffstat (limited to 'drivers/mtd/nand/mxs_nand.c')
| -rw-r--r-- | drivers/mtd/nand/mxs_nand.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 1e93e5f..46dc7b1 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -687,10 +687,14 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand, { struct mxs_nand_info *nand_info = nand->priv; struct mxs_dma_desc *d; +#if defined(CONFIG_MX6QP) || defined(CONFIG_MX7) || defined(CONFIG_MX6UL) + struct mxs_bch_regs *bch_regs = (struct mxs_bch_regs *)MXS_BCH_BASE; +#endif uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip; uint32_t corrected = 0, failed = 0; uint8_t *status; int i, ret; + int flag = 0; /* Compile the DMA descriptor - wait for ready. */ d = mxs_nand_get_dma_desc(nand_info); @@ -794,8 +798,13 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand, if (status[i] == 0x00) continue; - if (status[i] == 0xff) + if (status[i] == 0xff) { +#if defined(CONFIG_MX6QP) || defined(CONFIG_MX7) || defined(CONFIG_MX6UL) + if (readl(bch_regs->hw_bch_debug1)) + flag = 1; +#endif continue; + } if (status[i] == 0xfe) { if (mxs_nand_erased_page(mtd, nand, @@ -827,6 +836,9 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand, memcpy(buf, nand_info->data_buf, mtd->writesize); + if (flag) + memset(buf, 0xff, mtd->writesize); + rtn: mxs_nand_return_dma_descs(nand_info); @@ -1150,6 +1162,12 @@ static int mxs_nand_scan_bbt(struct mtd_info *mtd) << BCH_FLASHLAYOUT1_GF13_0_GF14_1_OFFSET; writel(tmp, &bch_regs->hw_bch_flash0layout1); + /* Set erase threshold to ecc strength for mx6ul, mx6qp and mx7 */ +#if defined(CONFIG_MX6QP) || defined(CONFIG_MX7) || defined(CONFIG_MX6UL) + writel(BCH_MODE_ERASE_THRESHOLD(ecc_strength), + &bch_regs->hw_bch_mode); +#endif + /* Set *all* chip selects to use layout 0 */ writel(0, &bch_regs->hw_bch_layoutselect); |