INT2_GMAC1
sc->sc_int_select[2] = INT2_GMAC1;
bus_space_write_4(sc->sc_iot, sc->sc_ioh, GMAC_INT2_SELECT, INT2_GMAC1);
sc->sc_int_mask[2] = (sc->sc_port1 ? INT2_GMAC1 : INT2_GMAC0);