IOC_RESET
bus_space_write_4(sc->sc_iot, sc->sc_ioh, IOC_RESET,
value = bus_space_read_4(sc->sc_iot, sc->sc_ioh, IOC_RESET) & 0xff;
bus_space_write_4(sc->sc_iot, sc->sc_ioh, IOC_RESET, value);