MMC_TIMING_UHS2_SPEED_B_HD
host->ios.timing = MMC_TIMING_UHS2_SPEED_B_HD;
host->ios.timing == MMC_TIMING_UHS2_SPEED_B_HD) {
ios->timing == MMC_TIMING_UHS2_SPEED_B_HD))
host->mmc->ios.timing == MMC_TIMING_UHS2_SPEED_B_HD)
case MMC_TIMING_UHS2_SPEED_B_HD:
host->ios.timing == MMC_TIMING_UHS2_SPEED_B_HD;
host->ios.timing == MMC_TIMING_UHS2_SPEED_B_HD;