scu_sca_ioh
bus_space_write_1(sc->sc_iot, sc->scu_sca_ioh[(reg & 0xf0) >> 4],
bus_space_write_2(sc->sc_iot, sc->scu_sca_ioh[(reg & 0xf0) >> 4],
bus_space_read_1(sc->sc_iot, sc->scu_sca_ioh[(reg & 0xf0) >> 4],
bus_space_read_2(sc->sc_iot, sc->scu_sca_ioh[(reg & 0xf0) >> 4],
&sca->scu_sca_ioh[i]))) {