RZN1_RTC_SECC
secs = readl(rtc->base + RZN1_RTC_SECC);
if (readl(rtc->base + RZN1_RTC_SECC) == bin2bcd(rtc->tm_alarm.tm_sec)) {
} while (readl(rtc->base + RZN1_RTC_SECC) != bin2bcd(tm_now.tm_sec));