/* Send switch voltage command switch card voltage to 1.8v.  */
static status_t SD_SwitchVoltage(sd_card_t *card)
/* Send switch voltage command switch card voltage to 1.8v.  */
static status_t SD_SwitchVoltage(sd_card_t *card)
{
    assert(card);
    return SDMMC_SwitchVoltage(card->host.base, card->host.transfer);
}