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mtd: nand: Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT

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Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT option so that other NAND controller
drivers could use it when a 16-bit NAND is deployed.

drivers/mtd/nand/ndfc has CONFIG_SYS_NDFC_16BIT, so just rename it, so that
other NAND drivers could reuse the same symbol.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
This commit is contained in:
Fabio Estevam
2013-04-11 09:35:34 +00:00
committed by Albert ARIBAUD
parent dd2445ec1b
commit 66bd1846ef
2 changed files with 8 additions and 5 deletions
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4
drivers/mtd/nand/ndfc.c
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@@ -156,7 +156,7 @@ static uint8_t ndfc_read_byte(struct mtd_info *mtd)
struct nand_chip *chip = mtd->priv;
#ifdef CONFIG_SYS_NDFC_16BIT
#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
return (uint8_t) readw(chip->IO_ADDR_R);
#else
return readb(chip->IO_ADDR_R);
@@ -218,7 +218,7 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.bytes = 3;
nand->select_chip = ndfc_select_chip;
#ifdef CONFIG_SYS_NDFC_16BIT
#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
nand->options |= NAND_BUSWIDTH_16;
#endif