MTK_SEC
sec = mtk_r32(hw, MTK_RTC_TREG(time_alarm, MTK_SEC));
} while (sec != mtk_r32(hw, MTK_RTC_TREG(time_alarm, MTK_SEC)));
mtk_w32(hw, MTK_RTC_TREG(time_alarm, MTK_SEC), tm->tm_sec);