diff options
Diffstat (limited to 'board/davinci/sonata/sonata.c')
| -rw-r--r-- | board/davinci/sonata/sonata.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/board/davinci/sonata/sonata.c b/board/davinci/sonata/sonata.c index 7f9d9bb..817970a 100644 --- a/board/davinci/sonata/sonata.c +++ b/board/davinci/sonata/sonata.c @@ -25,6 +25,8 @@ */ #include <common.h> +#include <nand.h> +#include <asm/arch/nand_defs.h> #include <asm/arch/hardware.h> #include "../common/misc.h" @@ -72,3 +74,29 @@ int misc_init_r(void) return(0); } + +#ifdef CONFIG_NAND_DAVINCI + +/* Set WP on deselect, write enable on select */ +static void nand_sonata_select_chip(struct mtd_info *mtd, int chip) +{ +#define GPIO_SET_DATA01 0x01c67018 +#define GPIO_CLR_DATA01 0x01c6701c +#define GPIO_NAND_WP (1 << 4) +#ifdef SONATA_BOARD_GPIOWP + if (chip < 0) { + REG(GPIO_CLR_DATA01) |= GPIO_NAND_WP; + } else { + REG(GPIO_SET_DATA01) |= GPIO_NAND_WP; + } +#endif +} + +int board_nand_init(struct nand_chip *nand) +{ + davinci_nand_init(nand); + nand->select_chip = nand_sonata_select_chip; + return 0; +} + +#endif /* CONFIG_NAND_DAVINCI */ |