SCTL_SHIM_CFG
val = bus_space_read_8(sc->sc_iot, sc->sc_ioh, SCTL_SHIM_CFG);
bus_space_write_8(sc->sc_iot, sc->sc_ioh, SCTL_SHIM_CFG, val);
(void)bus_space_read_8(sc->sc_iot, sc->sc_ioh, SCTL_SHIM_CFG);