diff options
Diffstat (limited to 'drivers/mtd/nand/tegra_nand.c')
| -rw-r--r-- | drivers/mtd/nand/tegra_nand.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/mtd/nand/tegra_nand.c b/drivers/mtd/nand/tegra_nand.c index e6dbdbbf2c..3910dd80ff 100644 --- a/drivers/mtd/nand/tegra_nand.c +++ b/drivers/mtd/nand/tegra_nand.c @@ -170,7 +170,8 @@ static void read_buf(struct mtd_info *mtd, uint8_t *buf, int len) int i, s; unsigned int reg; struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_drv *info = (struct nand_drv *)nand_get_controller_data(chip); + struct nand_drv *info = + (struct nand_drv *)nand_get_controller_data(chip); for (i = 0; i < len; i += 4) { s = (len - i) > 4 ? 4 : len - i; @@ -545,8 +546,16 @@ static int nand_rw_page(struct mtd_info *mtd, struct nand_chip *chip, tag_size += SKIPPED_SPARE_BYTES; bounce_buffer_start(&bbstate_oob, (void *)tag_ptr, tag_size, bbflags); - writel(virt_to_phys(bbstate_oob.bounce_buffer), &info->reg->tag_ptr); - writel(BCH_CONFIG_BCH_TVAL16 | BCH_CONFIG_BCH_ECC_ENABLE, &info->reg->bch_config); + writel(virt_to_phys(bbstate_oob.bounce_buffer), + &info->reg->tag_ptr); + /* + * TBD: We should really check whether or not enough OOB is + * actually available for such configuration resp. properly + * choose a configuration which actually works (see e.g. + * current mainline Linux kernel driver). + */ + writel(BCH_CONFIG_BCH_TVAL16 | BCH_CONFIG_BCH_ECC_ENABLE, + &info->reg->bch_config); } else { tag_size = mtd->oobsize; reg_val |= (CFG_SKIP_SPARE_DISABLE @@ -556,7 +565,8 @@ static int nand_rw_page(struct mtd_info *mtd, struct nand_chip *chip, | (tag_size - 1)); bounce_buffer_start(&bbstate_oob, (void *)chip->oob_poi, tag_size, bbflags); - writel(virt_to_phys(bbstate_oob.bounce_buffer), &info->reg->tag_ptr); + writel(virt_to_phys(bbstate_oob.bounce_buffer), + &info->reg->tag_ptr); writel(BCH_CONFIG_BCH_ECC_DISABLE, &info->reg->bch_config); } writel(reg_val, &info->reg->config); |