diff --git a/src/soc/mediatek/common/include/soc/rtc_mt6359p.h b/src/soc/mediatek/common/include/soc/rtc_mt6359p.h
index fcae61e914..76de250dc8 100644
--- a/src/soc/mediatek/common/include/soc/rtc_mt6359p.h
+++ b/src/soc/mediatek/common/include/soc/rtc_mt6359p.h
@@ -72,6 +72,10 @@ enum {
 	RTC_TC_MTH_MASK = 0xf,
 };
 
+enum {
+	RTC_EOSC_CALI_TD_DEFAULT = 6U << 5,
+};
+
 enum {
 	RTC_K_EOSC_RSV_0	= 1 << 8,
 	RTC_K_EOSC_RSV_1	= 1 << 9,
diff --git a/src/soc/mediatek/common/rtc_mt6359p.c b/src/soc/mediatek/common/rtc_mt6359p.c
index 6e8a3a0931..7ea23b0e79 100644
--- a/src/soc/mediatek/common/rtc_mt6359p.c
+++ b/src/soc/mediatek/common/rtc_mt6359p.c
@@ -220,6 +220,7 @@ int rtc_init(int recover)
 {
 	int ret;
 	u16 year;
+	u16 al_dow;
 
 	rtc_info("recovery: %d\n", recover);
 
@@ -256,6 +257,10 @@ int rtc_init(int recover)
 		goto err;
 	}
 
+	/* RTC EOSC calibration period setting and day-of-week value of alarm counter setting */
+	rtc_read(RTC_AL_DOW, &al_dow);
+	rtc_write(RTC_AL_DOW, al_dow | RTC_EOSC_CALI_TD_DEFAULT);
+
 	/* solution1 for EOSC cali*/
 	rtc_read(RTC_AL_YEA, &year);
 	rtc_write(RTC_AL_YEA, (year | RTC_K_EOSC_RSV_0) & (~RTC_K_EOSC_RSV_1)