MVSDIO_TM
reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, MVSDIO_TM);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVSDIO_TM,
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVSDIO_TM,
tm = bus_space_read_4(sc->sc_iot, sc->sc_ioh, MVSDIO_TM);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVSDIO_TM, tm);