diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/mxs_nand.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 7cd5fd0..e54f888 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -688,10 +688,12 @@ 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; + struct mxs_bch_regs *bch_regs = (struct mxs_bch_regs *)MXS_BCH_BASE; 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); @@ -795,8 +797,13 @@ 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 (is_mx6dqp() || is_soc_type(MXC_SOC_MX7) || + is_cpu_type(MXC_CPU_MX6UL)) + if (readl(bch_regs->hw_bch_debug1)) + flag = 1; continue; + } if (status[i] == 0xfe) { if (mxs_nand_erased_page(mtd, nand, @@ -828,6 +835,9 @@ 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 +1160,12 @@ 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 (is_mx6dqp() || is_soc_type(MXC_SOC_MX7) || + is_cpu_type(MXC_CPU_MX6UL)) + writel(BCH_MODE_ERASE_THRESHOLD(ecc_strength), + &bch_regs->hw_bch_mode); + /* Set *all* chip selects to use layout 0 */ writel(0, &bch_regs->hw_bch_layoutselect); |