diff options
Diffstat (limited to 'board/netstar/netstar.c')
| -rw-r--r-- | board/netstar/netstar.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/board/netstar/netstar.c b/board/netstar/netstar.c index 19a70ef..ee4f2cd 100644 --- a/board/netstar/netstar.c +++ b/board/netstar/netstar.c @@ -23,6 +23,9 @@ #include <common.h> #include <i2c.h> #include <flash.h> +#include <nand.h> + +#include <asm/io.h> DECLARE_GLOBAL_DATA_PTR; @@ -79,3 +82,36 @@ ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t * info) return 0; } #endif + +#if defined(CONFIG_CMD_NAND) +/* + * hardware specific access to control-lines + * + * NAND_NCE: bit 0 - don't care + * NAND_CLE: bit 1 -> bit 1 (0x0002) + * NAND_ALE: bit 2 -> bit 2 (0x0004) + */ +static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + struct nand_chip *chip = mtd->priv; + unsigned long mask; + + if (cmd == NAND_CMD_NONE) + return; + + mask = (ctrl & NAND_CLE) ? 0x02 : 0; + if (ctrl & NAND_ALE) + mask |= 0x04; + writeb(cmd, (unsigned long)chip->IO_ADDR_W | mask); +} + +int board_nand_init(struct nand_chip *nand) +{ + nand->options = NAND_SAMSUNG_LP_OPTIONS; + nand->ecc.mode = NAND_ECC_SOFT; + nand->cmd_ctrl = netstar_nand_hwcontrol; + nand->chip_delay = 400; + return 0; +} +#endif |