SDHC_F_NOPWR0
sc->sc.sc_flags |= SDHC_F_NOPWR0;
SET(sdhc->sc_flags, SDHC_F_NOPWR0);
sc->sc.sc_flags |= SDHC_F_NOPWR0;
sc->sc.sc_flags |= SDHC_F_NOPWR0;
sc->sc.sc_flags |= SDHC_F_NOPWR0;
if (!(hp->sc->sc_flags & SDHC_F_NOPWR0))