sd_cache_control
if ((err = sd_cache_control(ssc,
err = sd_cache_control(ssc, SD_CACHE_NOCHANGE,
if (sd_cache_control(ssc, SD_CACHE_DISABLE, SD_CACHE_DISABLE) !=
static int sd_cache_control(sd_ssc_t *ssc, int rcd_flag, int wce_flag);