Hello Chin,
> +
> + nand->ecc.mode = NAND_ECC_HW;
> + nand->ecc.size = CONFIG_NAND_DENALI_ECC_SIZE;
> + nand->ecc.read_oob = denali_read_oob;
> + nand->ecc.write_oob = denali_write_oob;
> + nand->ecc.read_page = denali_read_page;
> + nand->ecc.read_page_raw = denali_read_page_raw;
> + nand->ecc.write_page = denali_write_page;
> + nand->ecc.write_page_raw = denali_write_page_raw;
> +#ifdef CONFIG_SYS_NAND_15BIT_HW_ECC_OOBFIRST
> + /* 15bit ECC */
> + nand->ecc.bytes = 26;
> + nand->ecc.layout = &nand_15bit_oob;
> +#else /* 8bit ECC */
> + nand->ecc.bytes = 14;
> + nand->ecc.layout = &nand_8bit_oob;
> +#endif
> + nand->ecc.calculate = denali_ecc_calculate;
> + nand->ecc.correct = denali_ecc_correct;
> + nand->ecc.hwctl = denali_ecc_hwctl;
You set nand->ecc.mode = NAND_ECC_HW,
but it looks like you don't set nand->ecc.strength.
So, I think initialization will fail in nand_scan_tail() function.
Here,
if (mtd->writesize >= chip->ecc.size) {
if (!chip->ecc.strength) {
pr_warn("Driver must set ecc.strength when
using hardware ECC\n");
BUG();
}
break;
Where do you set nand->ecc.strength?
Best Regards
Masahiro Yamada
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