INTR_MASK
return mdio_write(cphy, 0, VSC8211_INTR_ENABLE, INTR_MASK);
cause &= INTR_MASK;
ENIC_BUS_WRITE_4(intr->ctrl, INTR_MASK, 1);
ret = ENIC_BUS_READ_4(intr->ctrl, INTR_MASK);
ENIC_BUS_WRITE_4(intr->ctrl, INTR_MASK, 0);