diff --git a/components/hal/esp32s2/include/hal/rtc_cntl_ll.h b/components/hal/esp32s2/include/hal/rtc_cntl_ll.h
index eb7a0f7e23..ffba472c47 100644
--- a/components/hal/esp32s2/include/hal/rtc_cntl_ll.h
+++ b/components/hal/esp32s2/include/hal/rtc_cntl_ll.h
@@ -40,11 +40,6 @@ static inline void rtc_cntl_ll_ext1_clear_wakeup_pins(void)
     REG_SET_BIT(RTC_CNTL_EXT_WAKEUP1_REG, RTC_CNTL_EXT_WAKEUP1_STATUS_CLR);
 }
 
-static inline void rtc_cntl_ll_ulp_wakeup_enable(void)
-{
-    SET_PERI_REG_BITS(RTC_CNTL_STATE0_REG, RTC_CNTL_WAKEUP_ENA_V, 0x800, RTC_CNTL_WAKEUP_ENA_S);
-}
-
 static inline void rtc_cntl_ll_ulp_int_clear(void)
 {
     REG_SET_BIT(RTC_CNTL_INT_CLR_REG, RTC_CNTL_ULP_CP_INT_CLR);
diff --git a/components/hal/esp32s3/include/hal/rtc_cntl_ll.h b/components/hal/esp32s3/include/hal/rtc_cntl_ll.h
index f55cf7a7f0..3dfa5e3e71 100644
--- a/components/hal/esp32s3/include/hal/rtc_cntl_ll.h
+++ b/components/hal/esp32s3/include/hal/rtc_cntl_ll.h
@@ -44,11 +44,6 @@ static inline void rtc_cntl_ll_ext1_clear_wakeup_pins(void)
     REG_SET_BIT(RTC_CNTL_EXT_WAKEUP1_REG, RTC_CNTL_EXT_WAKEUP1_STATUS_CLR);
 }
 
-static inline void rtc_cntl_ll_ulp_wakeup_enable(void)
-{
-    SET_PERI_REG_BITS(RTC_CNTL_STATE0_REG, RTC_CNTL_WAKEUP_ENA_V, 0x800, RTC_CNTL_WAKEUP_ENA_S);
-}
-
 static inline void rtc_cntl_ll_set_tagmem_retention_link_addr(uint32_t link_addr)
 {
     REG_SET_FIELD(APB_CTRL_RETENTION_CTRL1_REG, APB_CTRL_RETENTION_TAG_LINK_ADDR, link_addr);