brcmnand_ecc_level_mask
acc_control &= ~brcmnand_ecc_level_mask(ctrl);
acc_control &= ~brcmnand_ecc_level_mask(ctrl);
ecc_level = (acc & brcmnand_ecc_level_mask(ctrl)) >> ctrl->ecc_level_shift;
tmp &= ~brcmnand_ecc_level_mask(ctrl);