UTMIP_BIAS_CFG0
val = bus_read_4(sc->pads_res, UTMIP_BIAS_CFG0);
bus_write_4(sc->pads_res, UTMIP_BIAS_CFG0, val);
val =bus_read_4(sc->pads_res, UTMIP_BIAS_CFG0);
bus_write_4(sc->pads_res, UTMIP_BIAS_CFG0, val);