SIOP_STEST2
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2, 0);
stest2 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2);
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,