diff --git a/components/esp_hw_support/component.mk b/components/esp_hw_support/component.mk
index 2f762ab2b4..15516c365c 100644
--- a/components/esp_hw_support/component.mk
+++ b/components/esp_hw_support/component.mk
@@ -17,7 +17,8 @@ COMPONENT_OBJEXCLUDE += clk_ctrl_os.o \
 						port/$(IDF_TARGET)/cache_sram_mmu.o \
 						port/$(IDF_TARGET)/esp_himem.o \
 						port/$(IDF_TARGET)/spiram.o \
-						port/$(IDF_TARGET)/spiram_psram.o
+						port/$(IDF_TARGET)/spiram_psram.o \
+						port/$(IDF_TARGET)/sar_periph_ctrl.o
 endif
 
 ifdef CONFIG_IDF_TARGET_ESP32
diff --git a/components/esp_hw_support/port/esp32/rtc_init.c b/components/esp_hw_support/port/esp32/rtc_init.c
index e01d604477..e4dccc6f94 100644
--- a/components/esp_hw_support/port/esp32/rtc_init.c
+++ b/components/esp_hw_support/port/esp32/rtc_init.c
@@ -13,6 +13,9 @@
 #include "soc/efuse_periph.h"
 #include "hal/efuse_ll.h"
 #include "soc/gpio_periph.h"
+#ifndef BOOTLOADER_BUILD
+#include "esp_private/sar_periph_ctrl.h"
+#endif
 
 
 void rtc_init(rtc_config_t cfg)
@@ -95,6 +98,11 @@ void rtc_init(rtc_config_t cfg)
 
     REG_WRITE(RTC_CNTL_INT_ENA_REG, 0);
     REG_WRITE(RTC_CNTL_INT_CLR_REG, UINT32_MAX);
+
+#ifndef BOOTLOADER_BUILD
+    //initialise SAR related peripheral register settings
+    sar_periph_ctrl_init();
+#endif
 }
 
 rtc_vddsdio_config_t rtc_vddsdio_get_config(void)
diff --git a/components/esp_hw_support/port/esp32c3/rtc_init.c b/components/esp_hw_support/port/esp32c3/rtc_init.c
index 3511bda87c..6e29e9008c 100644
--- a/components/esp_hw_support/port/esp32c3/rtc_init.c
+++ b/components/esp_hw_support/port/esp32c3/rtc_init.c
@@ -19,6 +19,9 @@
 #include "soc_log.h"
 #include "esp_efuse.h"
 #include "esp_efuse_table.h"
+#ifndef BOOTLOADER_BUILD
+#include "esp_private/sar_periph_ctrl.h"
+#endif
 
 static const char *TAG = "rtc_init";
 
@@ -154,6 +157,11 @@ void rtc_init(rtc_config_t cfg)
     REG_WRITE(RTC_CNTL_INT_ENA_REG, 0);
     REG_WRITE(RTC_CNTL_INT_CLR_REG, UINT32_MAX);
     REGI2C_WRITE_MASK(I2C_ULP, I2C_ULP_IR_FORCE_XPD_CK, 1);
+
+#ifndef BOOTLOADER_BUILD
+    //initialise SAR related peripheral register settings
+    sar_periph_ctrl_init();
+#endif
 }
 
 rtc_vddsdio_config_t rtc_vddsdio_get_config(void)
diff --git a/components/esp_hw_support/port/esp32h2/rtc_init.c b/components/esp_hw_support/port/esp32h2/rtc_init.c
index 7b684d3d3d..3ee027e7c2 100644
--- a/components/esp_hw_support/port/esp32h2/rtc_init.c
+++ b/components/esp_hw_support/port/esp32h2/rtc_init.c
@@ -22,6 +22,9 @@
 #include "esp_efuse_table.h"
 #include "i2c_pmu.h"
 #include "soc/clkrst_reg.h"
+#ifndef BOOTLOADER_BUILD
+#include "esp_private/sar_periph_ctrl.h"
+#endif
 
 void pmu_ctl(void);
 void dcdc_ctl(uint32_t mode);
@@ -132,6 +135,11 @@ void rtc_init(rtc_config_t cfg)
     }
     /* config dcdc frequency */
     REG_SET_FIELD(RTC_CNTL_DCDC_CTRL0_REG, RTC_CNTL_FSW_DCDC, RTC_CNTL_DCDC_FREQ_DEFAULT);
+
+#ifndef BOOTLOADER_BUILD
+    //initialise SAR related peripheral register settings
+    sar_periph_ctrl_init();
+#endif
 }
 
 void pmu_ctl(void)
diff --git a/components/esp_hw_support/port/esp32s2/rtc_init.c b/components/esp_hw_support/port/esp32s2/rtc_init.c
index 0f446730a4..2b6ad6ba3e 100644
--- a/components/esp_hw_support/port/esp32s2/rtc_init.c
+++ b/components/esp_hw_support/port/esp32s2/rtc_init.c
@@ -18,6 +18,9 @@
 #include "soc_log.h"
 #include "esp_efuse.h"
 #include "esp_efuse_table.h"
+#ifndef BOOTLOADER_BUILD
+#include "esp_private/sar_periph_ctrl.h"
+#endif
 
 __attribute__((unused)) static const char *TAG = "rtc_init";
 
@@ -163,6 +166,11 @@ void rtc_init(rtc_config_t cfg)
 
     REG_WRITE(RTC_CNTL_INT_ENA_REG, 0);
     REG_WRITE(RTC_CNTL_INT_CLR_REG, UINT32_MAX);
+
+#ifndef BOOTLOADER_BUILD
+    //initialise SAR related peripheral register settings
+    sar_periph_ctrl_init();
+#endif
 }
 
 rtc_vddsdio_config_t rtc_vddsdio_get_config(void)
diff --git a/components/esp_hw_support/port/esp32s3/rtc_init.c b/components/esp_hw_support/port/esp32s3/rtc_init.c
index 844c508a62..a664da698e 100644
--- a/components/esp_hw_support/port/esp32s3/rtc_init.c
+++ b/components/esp_hw_support/port/esp32s3/rtc_init.c
@@ -22,6 +22,9 @@
 #include "esp_efuse.h"
 #include "esp_efuse_table.h"
 #include "esp_private/spi_flash_os.h"
+#ifndef BOOTLOADER_BUILD
+#include "esp_private/sar_periph_ctrl.h"
+#endif
 
 
 #define RTC_CNTL_MEM_FORCE_NOISO (RTC_CNTL_SLOWMEM_FORCE_NOISO | RTC_CNTL_FASTMEM_FORCE_NOISO)
@@ -194,6 +197,11 @@ void rtc_init(rtc_config_t cfg)
 
     REG_WRITE(RTC_CNTL_INT_ENA_REG, 0);
     REG_WRITE(RTC_CNTL_INT_CLR_REG, UINT32_MAX);
+
+#ifndef BOOTLOADER_BUILD
+    //initialise SAR related peripheral register settings
+    sar_periph_ctrl_init();
+#endif
 }
 
 rtc_vddsdio_config_t rtc_vddsdio_get_config(void)