On Tuesday, April 9, 2013 9:48:30 PM, Benoît Thébaudeau wrote:
From: Fabio Estevam fabio.estevam@freescale.com
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
Changes in v11: None Changes in v10: None Changes in v9: None Changes in v8:
- New patch.
Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None
README | 9 ++++++--- drivers/mtd/nand/ndfc.c | 4 ++-- 2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/README b/README index 5c5cd18..e9c3145 100644 --- a/README +++ b/README @@ -3755,9 +3755,12 @@ Low Level (hardware related) configuration options:
- CONFIG_SYS_SRIOn_MEM_SIZE: Size of SRIO port 'n' memory region
-- CONFIG_SYS_NDFC_16
Defined to tell the NDFC that the NAND chip is using a16 bit bus.+- CONFIG_SYS_NAND_BUSWIDTH_16BIT
Defined to tell the NAND controller that the NAND chip is usinga 16 bit bus.Not all NAND drivers use this symbol.Example of driver that uses it:- drivers/mtd/nand/ndfc.c
- CONFIG_SYS_NDFC_EBC0_CFG Sets the EBC0_CFG register for the NDFC. If not defined
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 6ebbb5e..213d2c9 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -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
-- 1.7.10.4
Git bundle for v11 here: http://dl.free.fr/lWM6s9zmk
The changes in v11 are limited to 18/30 (mx31pdk.h).
Best regards, Benoît