From c1212b2f5c5ed440bf8e9ebc8e4fd7488858b935 Mon Sep 17 00:00:00 2001 From: Stelian Pop Date: Thu, 8 May 2008 20:52:18 +0200 Subject: 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 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- board/atmel/at91sam9260ek/at91sam9260ek.c | 7 ++++++- board/atmel/at91sam9260ek/nand.c | 3 +++ 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'board/atmel/at91sam9260ek') diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c index 21479ac..4635f0f 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 7c1e6ab..9738f0f 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; -- cgit v1.1