SDHCI_SPEC_VER_MASK
esdhc->spec_ver = host_ver & SDHCI_SPEC_VER_MASK;
((host_version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT),
host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;