Merge branch 'feat/bod_bringup_h4' into 'master'

feat(bod): Add bod support on esp32h4

Closes IDF-12295

See merge request espressif/esp-idf!47657

components/soc/esp32h4/include/soc/Kconfig.soc_caps.in

@@ -147,6 +147,10 @@ config SOC_FLASH_ENC_SUPPORTED
     bool
     default n
 
+config SOC_BOD_SUPPORTED
+    bool
+    default y
+
 config SOC_PMU_SUPPORTED
     bool
     default y

components/soc/esp32h4/include/soc/regi2c_brownout.h

@@ -0,0 +1,24 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ */
+
+#pragma once
+
+#include "regi2c_dcdc.h"
+
+/**
+ * @file regi2c_brownout.h
+ * @brief Register definitions for brownout detector
+ *
+ * This file lists register fields of the brownout detector, located on an internal configuration
+ * bus. These definitions are used via macros defined in regi2c_ctrl.h.
+ */
+
+#define I2C_BOD            I2C_DCDC
+#define I2C_BOD_HOSTID     I2C_DCDC_HOSTID
+
+#define I2C_BOD_THRESHOLD           0xD
+#define I2C_BOD_THRESHOLD_MSB       6
+#define I2C_BOD_THRESHOLD_LSB       3

components/soc/esp32h4/include/soc/soc_caps.h

@@ -74,7 +74,7 @@
 #define SOC_FLASH_ENC_SUPPORTED         0       // TODO: [ESP32H4] IDF-12261
 // #define SOC_SECURE_BOOT_SUPPORTED       1    // TODO: [ESP32H4] IDF-12262
 
-// #define SOC_BOD_SUPPORTED               1    // TODO: [ESP32H4] IDF-12295
+#define SOC_BOD_SUPPORTED               1
 // #define SOC_APM_SUPPORTED               1    // TODO: [ESP32H4] IDF-12256
 #define SOC_PMU_SUPPORTED               1    // TODO: [ESP32H4] IDF-12286
 #define SOC_PAU_SUPPORTED               1

components/soc/esp32h4/power_supply_periph.c

@@ -0,0 +1,11 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ */
+
+#include "soc/power_supply_periph.h"
+
+const power_supply_signal_conn_t power_supply_periph_signal = {
+    .irq = ETS_LP_RTC_TIMER_INTR_SOURCE,
+};