sdhci_arasan_syscon_write
sdhci_arasan_syscon_write(host, &soc_ctl_map->clockmultiplier, value);
sdhci_arasan_syscon_write(host, &soc_ctl_map->baseclkfreq, mhz);
sdhci_arasan_syscon_write(host, &soc_ctl_map->support64b, value);