DM9000_IOSIZE
bus_space_unmap(iot, ioh, DM9000_IOSIZE);
if (bus_space_map(sc->sc_iot, ioaddr, DM9000_IOSIZE, 0, &sc->sc_ioh)) {
if (bus_space_map(iot, ioaddr, DM9000_IOSIZE, 0, &ioh))