diff options
Diffstat (limited to 'drivers/mtd/nand/s3c2410_nand.c')
| -rw-r--r-- | drivers/mtd/nand/s3c2410_nand.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/drivers/mtd/nand/s3c2410_nand.c b/drivers/mtd/nand/s3c2410_nand.c index f2f3e722e..a27d47e5f 100644 --- a/drivers/mtd/nand/s3c2410_nand.c +++ b/drivers/mtd/nand/s3c2410_nand.c @@ -21,7 +21,7 @@ #include <common.h> #include <nand.h> -#include <s3c2410.h> +#include <asm/arch/s3c24x0_cpu.h> #include <asm/io.h> #define S3C2410_NFCONF_EN (1<<15) @@ -36,6 +36,21 @@ #define S3C2410_ADDR_NALE 4 #define S3C2410_ADDR_NCLE 8 +#ifdef CONFIG_NAND_SPL + +/* in the early stage of NAND flash booting, printf() is not available */ +#define printf(fmt, args...) + +static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) +{ + int i; + struct nand_chip *this = mtd->priv; + + for (i = 0; i < len; i++) + buf[i] = readb(this->IO_ADDR_R); +} +#endif + static void s3c2410_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *chip = mtd->priv; @@ -83,9 +98,10 @@ void s3c2410_nand_enable_hwecc(struct mtd_info *mtd, int mode) static int s3c2410_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { - ecc_code[0] = NFECC0; - ecc_code[1] = NFECC1; - ecc_code[2] = NFECC2; + struct s3c2410_nand *nand = s3c2410_get_base_nand(); + ecc_code[0] = readb(&nand->NFECC); + ecc_code[1] = readb(&nand->NFECC + 1); + ecc_code[2] = readb(&nand->NFECC + 2); debugX(1, "s3c2410_nand_calculate_hwecc(%p,): 0x%02x 0x%02x 0x%02x\n", mtd , ecc_code[0], ecc_code[1], ecc_code[2]); @@ -130,8 +146,13 @@ int board_nand_init(struct nand_chip *nand) /* initialize nand_chip data structure */ nand->IO_ADDR_R = nand->IO_ADDR_W = (void *)&nand_reg->NFDATA; + nand->select_chip = NULL; + /* read_buf and write_buf are default */ /* read_byte and write_byte are default */ +#ifdef CONFIG_NAND_SPL + nand->read_buf = nand_read_buf; +#endif /* hwcontrol always must be implemented */ nand->cmd_ctrl = s3c2410_hwcontrol; @@ -142,7 +163,9 @@ int board_nand_init(struct nand_chip *nand) nand->ecc.hwctl = s3c2410_nand_enable_hwecc; nand->ecc.calculate = s3c2410_nand_calculate_ecc; nand->ecc.correct = s3c2410_nand_correct_data; - nand->ecc.mode = NAND_ECC_HW3_512; + nand->ecc.mode = NAND_ECC_HW; + nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE; + nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES; #else nand->ecc.mode = NAND_ECC_SOFT; #endif |