E600_WDT_RR0
bus_space_write_1(sc->sc_wdt_iot, sc->sc_wdt_ioh, E600_WDT_RR0, 0x80);
bus_space_write_1(sc->sc_wdt_iot, sc->sc_wdt_ioh, E600_WDT_RR0, 0x86);