diff options
| author | Stelian Pop <stelian@popies.net> | 2008-05-08 20:52:18 +0200 |
|---|---|---|
| committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2008-05-10 11:32:07 +0200 |
| commit | c1212b2f5c5ed440bf8e9ebc8e4fd7488858b935 (patch) | |
| tree | e2fcdd66b196ab8260bebc6392553a4eabdddbb2 | |
| parent | ab52640fc01624e208424e527af0b7b3a5a65a12 (diff) | |
AT91SAM9260EK: Handle 8 or 16 bit NAND
The Atmel boards can handle 8 or 16 bit NAND memories. This patch
makes the support configurable in the board config header file
(CFG_NAND_DBW_8 or CFG_NAND_DBW_16).
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
| -rw-r--r-- | board/atmel/at91sam9260ek/at91sam9260ek.c | 7 | ||||
| -rw-r--r-- | board/atmel/at91sam9260ek/nand.c | 3 | ||||
| -rw-r--r-- | include/configs/at91sam9260ek.h | 1 |
3 files changed, 10 insertions, 1 deletions
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c index 21479acab4..4635f0fb7c 100644 --- a/board/atmel/at91sam9260ek/at91sam9260ek.c +++ b/board/atmel/at91sam9260ek/at91sam9260ek.c @@ -90,7 +90,12 @@ static void at91sam9260ek_nand_hw_init(void) at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | - AT91_SMC_DBW_8 | AT91_SMC_TDF_(2)); +#ifdef CFG_NAND_DBW_16 + AT91_SMC_DBW_16 | +#else /* CFG_NAND_DBW_8 */ + AT91_SMC_DBW_8 | +#endif + AT91_SMC_TDF_(2)); at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC); diff --git a/board/atmel/at91sam9260ek/nand.c b/board/atmel/at91sam9260ek/nand.c index 7c1e6abd9a..9738f0fd48 100644 --- a/board/atmel/at91sam9260ek/nand.c +++ b/board/atmel/at91sam9260ek/nand.c @@ -68,6 +68,9 @@ static int at91sam9260ek_nand_ready(struct mtd_info *mtd) int board_nand_init(struct nand_chip *nand) { nand->eccmode = NAND_ECC_SOFT; +#ifdef CFG_NAND_DBW_16 + nand->options = NAND_BUSWIDTH_16; +#endif nand->hwcontrol = at91sam9260ek_nand_hwcontrol; nand->dev_ready = at91sam9260ek_nand_ready; nand->chip_delay = 20; diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h index 41c418f9ab..784b9e5e63 100644 --- a/include/configs/at91sam9260ek.h +++ b/include/configs/at91sam9260ek.h @@ -104,6 +104,7 @@ #define NAND_MAX_CHIPS 1 #define CFG_MAX_NAND_DEVICE 1 #define CFG_NAND_BASE 0x40000000 +#define CFG_NAND_DBW_8 1 /* NOR flash - no real flash on this board */ #define CFG_NO_FLASH 1 |