NAND_ECC_SOFT_HAMMING_SM_ORDER
bool sm_order = chip->ecc.options & NAND_ECC_SOFT_HAMMING_SM_ORDER;
nand->ecc.options |= NAND_ECC_SOFT_HAMMING_SM_ORDER;
if (chip->ecc.options & NAND_ECC_SOFT_HAMMING_SM_ORDER)
ecc->options |= NAND_ECC_SOFT_HAMMING_SM_ORDER;