diff options
| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2013-08-12 17:14:48 (GMT) |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2013-08-30 20:34:51 (GMT) |
| commit | cd9d11820f4232856d6254a29fbb9c4f51a981c2 (patch) | |
| tree | 905bc413c07bc79bf0b6d72b974ee81c03e5d34a | |
| parent | c0f3b8643a6fa2461d70760ec49d21d2b031d611 (diff) | |
| download | linux-cd9d11820f4232856d6254a29fbb9c4f51a981c2.tar.xz | |
mtd: nand: pxa3xx: Handle ECC and DMA enable/disable properly
When ECC is not selected, the ECC enable bit must be cleared
in the NAND control register. Same applies to DMA.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/nand/pxa3xx_nand.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index c4bff66..1dcda6b 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -314,8 +314,17 @@ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info) uint32_t ndcr; ndcr = host->reg_ndcr; - ndcr |= info->use_ecc ? NDCR_ECC_EN : 0; - ndcr |= info->use_dma ? NDCR_DMA_EN : 0; + + if (info->use_ecc) + ndcr |= NDCR_ECC_EN; + else + ndcr &= ~NDCR_ECC_EN; + + if (info->use_dma) + ndcr |= NDCR_DMA_EN; + else + ndcr &= ~NDCR_DMA_EN; + ndcr |= NDCR_ND_RUN; /* clear status bits and run */ |