IMX_UCR2
bus_space_write_4(iot, ioh, IMX_UCR2, ucr2);
bus_space_write_4(iot, ioh, IMX_UCR2, ucr2);
bus_space_write_4(regsp->ur_iot, regsp->ur_ioh, IMX_UCR2,
bus_space_write_4(iot, ioh, IMX_UCR2, sc->sc_ucr2);