ESP8684: add driver esp_pm heap support

components/esp_pm/include/esp8684/pm.h

@@ -0,0 +1,34 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#pragma once
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+
+#include "soc/rtc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * @brief Power management config for ESP8684
+ *
+ * Pass a pointer to this structure as an argument to esp_pm_configure function.
+ */
+typedef struct {
+    int max_freq_mhz;   /*!< Maximum CPU frequency, in MHz */
+    int min_freq_mhz;   /*!< Minimum CPU frequency to use when no locks are taken, in MHz */
+    bool light_sleep_enable;        /*!< Enter light sleep when no locks are taken */
+} esp_pm_config_esp8684_t;
+
+
+#ifdef __cplusplus
+}
+#endif

components/esp_pm/include/esp_pm.h

@@ -1,16 +1,8 @@
-// Copyright 2016-2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #pragma once
 #include <stdint.h>
@@ -27,6 +19,8 @@
 #include "esp32c3/pm.h"
 #elif CONFIG_IDF_TARGET_ESP32H2
 #include "esp32h2/pm.h"
+#elif CONFIG_IDF_TARGET_ESP8684
+#include "esp8684/pm.h"
 #endif
 
 #ifdef __cplusplus

components/esp_pm/pm_impl.c

@@ -56,6 +56,10 @@
 #include "esp32h2/clk.h"
 #include "esp32h2/pm.h"
 #include "driver/gpio.h"
+#elif CONFIG_IDF_TARGET_ESP8684
+#include "esp_private/esp_clk.h"
+#include "esp8684/pm.h"
+#include "driver/gpio.h"
 #endif
 
 #define MHZ (1000000)
@@ -95,6 +99,9 @@
 #elif CONFIG_IDF_TARGET_ESP32H2
 #define REF_CLK_DIV_MIN 2
 #define DEFAULT_CPU_FREQ CONFIG_ESP32H2_DEFAULT_CPU_FREQ_MHZ
+#elif CONFIG_IDF_TARGET_ESP8684
+#define REF_CLK_DIV_MIN 2
+#define DEFAULT_CPU_FREQ CONFIG_ESP8684_DEFAULT_CPU_FREQ_MHZ
 #endif
 
 #ifdef CONFIG_PM_PROFILING
@@ -229,6 +236,8 @@ esp_err_t esp_pm_configure(const void* vconfig)
     const esp_pm_config_esp32c3_t* config = (const esp_pm_config_esp32c3_t*) vconfig;
 #elif CONFIG_IDF_TARGET_ESP32H2
     const esp_pm_config_esp32h2_t* config = (const esp_pm_config_esp32h2_t*) vconfig;
+#elif CONFIG_IDF_TARGET_ESP8684
+    const esp_pm_config_esp8684_t* config = (const esp_pm_config_esp8684_t*) vconfig;
 #endif
 
 #ifndef CONFIG_FREERTOS_USE_TICKLESS_IDLE
@@ -337,6 +346,8 @@ esp_err_t esp_pm_get_configuration(void* vconfig)
     esp_pm_config_esp32c3_t* config = (esp_pm_config_esp32c3_t*) vconfig;
 #elif CONFIG_IDF_TARGET_ESP32H2
     esp_pm_config_esp32h2_t* config = (esp_pm_config_esp32h2_t*) vconfig;
+#elif CONFIG_IDF_TARGET_ESP8684
+    esp_pm_config_esp8684_t* config = (esp_pm_config_esp8684_t*) vconfig;
 #endif
 
     portENTER_CRITICAL(&s_switch_lock);
@@ -766,6 +777,8 @@ void esp_pm_impl_init(void)
     esp_pm_config_esp32c3_t cfg = {
 #elif CONFIG_IDF_TARGET_ESP32H2
     esp_pm_config_esp32h2_t cfg = {
+#elif CONFIG_IDF_TARGET_ESP8684
+    esp_pm_config_esp8684_t cfg = {
 #endif
         .max_freq_mhz = DEFAULT_CPU_FREQ,
         .min_freq_mhz = xtal_freq,

components/esp_pm/pm_trace.c

@@ -1,16 +1,8 @@
-// Copyright 2016-2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 
 #include "esp_private/pm_trace.h"
@@ -21,7 +13,7 @@
  * Feel free to change when debugging.
  */
 static const int DRAM_ATTR s_trace_io[] = {
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32H2)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32H2) && !defined(CONFIG_IDF_TARGET_ESP8684)
         BIT(4),  BIT(5),  // ESP_PM_TRACE_IDLE
         BIT(16), BIT(17), // ESP_PM_TRACE_TICK
         BIT(18), BIT(18), // ESP_PM_TRACE_FREQ_SWITCH