MVPEX_WC
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVPEX_WC(window), 0);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVPEX_WC(window),
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVPEX_WC(window),
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVPEX_WC(window), 0);