ECC_CTL_REG
writew(ECC_OP_ENABLE, ecc->regs + ECC_CTL_REG(op));
if (readw(ecc->regs + ECC_CTL_REG(op)) != ECC_OP_ENABLE)
writew(ECC_OP_DISABLE, ecc->regs + ECC_CTL_REG(op));