diff --git a/src/soc/mediatek/common/rtc_mt6359p.c b/src/soc/mediatek/common/rtc_mt6359p.c
index b5c381b50d..2b5611bb15 100644
--- a/src/soc/mediatek/common/rtc_mt6359p.c
+++ b/src/soc/mediatek/common/rtc_mt6359p.c
@@ -9,8 +9,6 @@
 #include <soc/rtc_common.h>
 #include <timer.h>
 
-#define RTC_GPIO_USER_MASK	  ((1 << 13) - (1 << 8))
-
 static struct pmif *pmif_arb = NULL;
 
 void rtc_read(u16 addr, u16 *rdata)
diff --git a/src/soc/mediatek/mt8173/rtc.c b/src/soc/mediatek/mt8173/rtc.c
index d60f722564..326a951096 100644
--- a/src/soc/mediatek/mt8173/rtc.c
+++ b/src/soc/mediatek/mt8173/rtc.c
@@ -7,8 +7,6 @@
 #include <soc/pmic_wrap.h>
 #include <types.h>
 
-#define RTC_GPIO_USER_MASK	  ((1 << 13) - (1 << 8))
-
 /* initialize rtc related gpio */
 static bool rtc_gpio_init(void)
 {
diff --git a/src/soc/mediatek/mt8183/rtc.c b/src/soc/mediatek/mt8183/rtc.c
index e90aa9df6e..40830b033f 100644
--- a/src/soc/mediatek/mt8183/rtc.c
+++ b/src/soc/mediatek/mt8183/rtc.c
@@ -8,8 +8,6 @@
 #include <soc/pmic_wrap.h>
 #include <timer.h>
 
-#define RTC_GPIO_USER_MASK	  ((1 << 13) - (1 << 8))
-
 /* initialize rtc setting of using dcxo clock */
 static bool rtc_enable_dcxo(void)
 {
diff --git a/src/soc/mediatek/mt8186/rtc.c b/src/soc/mediatek/mt8186/rtc.c
index 7e38742ca2..528f42b3ff 100644
--- a/src/soc/mediatek/mt8186/rtc.c
+++ b/src/soc/mediatek/mt8186/rtc.c
@@ -13,8 +13,6 @@
 #include <soc/pmic_wrap.h>
 #include <timer.h>
 
-#define RTC_GPIO_USER_MASK	  ((1 << 13) - (1 << 8))
-
 /* Initialize RTC setting of using DCXO clock */
 static bool rtc_enable_dcxo(void)
 {