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mtd: mxs_nand: Add support for i.MX6

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Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
This commit is contained in:
Stefan Roese
2013-04-15 21:14:12 +00:00
committed by Stefano Babic
parent 99193e30b4
commit ae695b18df
3 changed files with 26 additions and 2 deletions
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11
drivers/mtd/nand/mxs_nand.c
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@@ -42,6 +42,11 @@
#define MXS_NAND_DMA_DESCRIPTOR_COUNT 4
#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE 512
#if defined(CONFIG_MX6)
#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT 2
#else
#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT 0
#endif
#define MXS_NAND_METADATA_SIZE 10
#define MXS_NAND_COMMAND_BUFFER_SIZE 32
@@ -982,14 +987,16 @@ static int mxs_nand_scan_bbt(struct mtd_info *mtd)
tmp |= MXS_NAND_METADATA_SIZE << BCH_FLASHLAYOUT0_META_SIZE_OFFSET;
tmp |= (mxs_nand_get_ecc_strength(mtd->writesize, mtd->oobsize) >> 1)
<< BCH_FLASHLAYOUT0_ECC0_OFFSET;
tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE;
tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE
>> MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT;
writel(tmp, &bch_regs->hw_bch_flash0layout0);
tmp = (mtd->writesize + mtd->oobsize)
<< BCH_FLASHLAYOUT1_PAGE_SIZE_OFFSET;
tmp |= (mxs_nand_get_ecc_strength(mtd->writesize, mtd->oobsize) >> 1)
<< BCH_FLASHLAYOUT1_ECCN_OFFSET;
tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE;
tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE
>> MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT;
writel(tmp, &bch_regs->hw_bch_flash0layout1);
/* Set *all* chip selects to use layout 0 */