CRMFB_DOTCLOCK
d = bus_space_read_4(sc->sc_iot, sc->sc_ioh, CRMFB_DOTCLOCK);
crmfb_write_reg(sc, CRMFB_DOTCLOCK, d);
crmfb_write_reg(sc, CRMFB_DOTCLOCK, dc);
d = bus_space_read_4(sc->sc_iot, sc->sc_ioh, CRMFB_DOTCLOCK);
crmfb_write_reg(sc, CRMFB_DOTCLOCK, d);
while ((bus_space_read_4(sc->sc_iot, sc->sc_ioh, CRMFB_DOTCLOCK) &