#ifdef CONFIG_SYS_NAND_HW_ECC
-static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode)
+static u_int32_t nand_davinci_readecc(struct mtd_info *mtd)
{
- u_int32_t val;
+ u_int32_t ecc = 0;
- (void)__raw_readl(&(davinci_emif_regs->nandfecc[
+ ecc = __raw_readl(&(davinci_emif_regs->nandfecc[
CONFIG_SYS_NAND_CS - 2]));
- val = __raw_readl(&davinci_emif_regs->nandfcr);
- val |= DAVINCI_NANDFCR_NAND_ENABLE(CONFIG_SYS_NAND_CS);
- val |= DAVINCI_NANDFCR_1BIT_ECC_START(CONFIG_SYS_NAND_CS);
- __raw_writel(val, &davinci_emif_regs->nandfcr);
+ return ecc;
}
-static u_int32_t nand_davinci_readecc(struct mtd_info *mtd, u_int32_t region)
+static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode)
{
- u_int32_t ecc = 0;
+ u_int32_t val;
- ecc = __raw_readl(&(davinci_emif_regs->nandfecc[region - 1]));
+ /* reading the ECC result register resets the ECC calculation */
+ nand_davinci_readecc(mtd);
- return ecc;
+ val = __raw_readl(&davinci_emif_regs->nandfcr);
+ val |= DAVINCI_NANDFCR_NAND_ENABLE(CONFIG_SYS_NAND_CS);
+ val |= DAVINCI_NANDFCR_1BIT_ECC_START(CONFIG_SYS_NAND_CS);
+ __raw_writel(val, &davinci_emif_regs->nandfcr);
}
static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
u_char *ecc_code)
{
u_int32_t tmp;
- const int region = 1;
- tmp = nand_davinci_readecc(mtd, region);
+ tmp = nand_davinci_readecc(mtd);
/* Squeeze 4 bytes ECC into 3 bytes by removing RESERVED bits
* and shifting. RESERVED bits are 31 to 28 and 15 to 12. */
{
nand->chip_delay = 0;
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
- nand->options |= NAND_USE_FLASH_BBT;
+ nand->bbt_options |= NAND_BBT_USE_FLASH;
#endif
#ifdef CONFIG_SYS_NAND_HW_ECC
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 512;
nand->ecc.bytes = 3;
+ nand->ecc.strength = 1;
nand->ecc.calculate = nand_davinci_calculate_ecc;
nand->ecc.correct = nand_davinci_correct_data;
nand->ecc.hwctl = nand_davinci_enable_hwecc;
nand->ecc.mode = NAND_ECC_HW_OOB_FIRST;
nand->ecc.size = 512;
nand->ecc.bytes = 10;
+ nand->ecc.strength = 4;
nand->ecc.calculate = nand_davinci_4bit_calculate_ecc;
nand->ecc.correct = nand_davinci_4bit_correct_data;
nand->ecc.hwctl = nand_davinci_4bit_enable_hwecc;