GPIO_GPDR1
bus_space_write_4(sc->sc_iot, pxa2x0_gpio_ioh, GPIO_GPDR1, 0xfcefbd21);
bus_space_write_4(sc->sc_iot, pxa2x0_gpio_ioh, GPIO_GPDR1, sd.sd_gpdr1);
sd.sd_gpdr1 = bus_space_read_4(sc->sc_iot, pxa2x0_gpio_ioh, GPIO_GPDR1);
reg = bus_space_read_4(iot, csc->saip.sc_gpioh, GPIO_GPDR1);
bus_space_write_4(iot, csc->saip.sc_gpioh, GPIO_GPDR1,