sdmmc_chip_bus_width
(void)sdmmc_chip_bus_width(sc->sc_sct, sc->sc_sch, 1);
error = sdmmc_chip_bus_width(sc->sc_sct, sc->sc_sch,
error = sdmmc_chip_bus_width(sc->sc_sct,
error = sdmmc_chip_bus_width(sc->sc_sct, sc->sc_sch, width);