C3000_USB_DEVICE_PIN
pxa2x0_gpio_set_function(C3000_USB_DEVICE_PIN, GPIO_IN);
sc->sc_client_ih = pxa2x0_gpio_intr_establish(C3000_USB_DEVICE_PIN,
int client_cable = pxa2x0_gpio_get_bit(C3000_USB_DEVICE_PIN);