Release/v5.5

components/app_update/test_apps/test_app_update/.build-test-rules.yml

@@ -15,6 +15,9 @@ components/app_update/test_apps:
     - if: IDF_TARGET == "esp32c61" and CONFIG_NAME == "xip_psram_with_rom_impl"
       temporary: true
       reason: not supported yet  # TODO: [ESP32C61] IDF-12784
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14401
   disable_test:
     - if: CONFIG_NAME == "recovery_bootloader" and SOC_RECOVERY_BOOTLOADER_SUPPORTED == 1 and IDF_TARGET == "esp32c61"
       temporary: true

components/app_update/test_apps/test_app_update/README.md

@@ -1,2 +1,2 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- |

components/bootloader_support/src/bootloader_console.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include "soc/uart_periph.h"
 #include "soc/uart_channel.h"
 #include "soc/io_mux_reg.h"
-#include "soc/gpio_periph.h"
 #include "soc/gpio_sig_map.h"
 #include "soc/rtc.h"
 #include "hal/gpio_ll.h"
@@ -26,9 +25,21 @@
 #include "esp_rom_sys.h"
 #include "esp_rom_caps.h"
 
+static void __attribute__((unused)) release_default_console_io(void)
+{
+    // Default console is UART0 with TX and RX on their IOMUX pins
+    gpio_ll_output_disable(&GPIO, UART_NUM_0_TXD_DIRECT_GPIO_NUM);
+    gpio_ll_func_sel(&GPIO, U0TXD_GPIO_NUM, PIN_FUNC_GPIO); // Set TX pin to GPIO function to truly disable output
+    esp_rom_gpio_connect_in_signal(GPIO_MATRIX_CONST_ONE_INPUT, UART_PERIPH_SIGNAL(UART_NUM_0, SOC_UART_RX_PIN_IDX), 0);
+}
+
 #ifdef CONFIG_ESP_CONSOLE_NONE
 void bootloader_console_init(void)
 {
+    // Wait for UART FIFO to be empty.
+    esp_rom_output_tx_wait_idle(0);
+    release_default_console_io();
+
     esp_rom_install_channel_putc(1, NULL);
     esp_rom_install_channel_putc(2, NULL);
 }
@@ -59,9 +70,7 @@ void bootloader_console_init(void)
     if (uart_num != 0 ||
             uart_tx_gpio != UART_NUM_0_TXD_DIRECT_GPIO_NUM ||
             uart_rx_gpio != UART_NUM_0_RXD_DIRECT_GPIO_NUM) {
-        // Change default UART pins back to GPIOs
-        gpio_ll_func_sel(&GPIO, UART_NUM_0_RXD_DIRECT_GPIO_NUM, PIN_FUNC_GPIO);
-        gpio_ll_func_sel(&GPIO, UART_NUM_0_TXD_DIRECT_GPIO_NUM, PIN_FUNC_GPIO);
+        release_default_console_io();
         // Route GPIO signals to/from pins
         const uint32_t tx_idx = UART_PERIPH_SIGNAL(uart_num, SOC_UART_TX_PIN_IDX);
         const uint32_t rx_idx = UART_PERIPH_SIGNAL(uart_num, SOC_UART_RX_PIN_IDX);
@@ -101,6 +110,10 @@ static char s_usb_cdc_buf[ESP_ROM_CDC_ACM_WORK_BUF_MIN];
 
 void bootloader_console_init(void)
 {
+    // Wait for UART FIFO to be empty.
+    esp_rom_output_tx_wait_idle(0);
+    release_default_console_io();
+
 #ifdef CONFIG_IDF_TARGET_ESP32S2
     /* ESP32-S2 specific patch to set the correct serial number in the descriptor.
      * Later chips don't need this.
@@ -120,6 +133,10 @@ void bootloader_console_init(void)
 #ifdef CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
 void bootloader_console_init(void)
 {
+    // Wait for UART FIFO to be empty.
+    esp_rom_output_tx_wait_idle(0);
+    release_default_console_io();
+
     esp_rom_output_switch_buffer(ESP_ROM_USB_SERIAL_DEVICE_NUM);
 
     /* Switch console channel to avoid output on UART and allow  */

components/bt/host/nimble/Kconfig.in

@@ -485,6 +485,26 @@ menu "Memory Settings"
         default 1
         help
             This is the service data unit buffer count for l2cap coc.
+
+    config BT_NIMBLE_MEMPOOL_RUNTIME_ALLOC
+        bool "Support on-demand runtime memory allocation for mempool"
+        depends on BT_NIMBLE_ENABLED && !SOC_ESP_NIMBLE_CONTROLLER
+        default n
+        help
+            When this option is enabled, mempool does not require pre-allocating memory.
+            Instead, memory for each block will be dynamically allocated and released
+            during mempool usage. This can significantly reduce memory consumption
+            after mempool initialization, but may have some impact on performance.
+
+    config BT_NIMBLE_MEMPOOL_BLOCK_REUSED
+        bool "Support block reuse for mempool runtime memory allocation"
+        depends on BT_NIMBLE_MEMPOOL_RUNTIME_ALLOC
+        default n
+        help
+            When this option is enabled, dynamically allocated blocks will not be freed
+            but will be reused instead. This ensures virtually no impact on performance
+            while reducing the memory consumption of the mempool.
+
 endmenu #Memory
 
 menu "BLE 5.x Features"
@@ -581,7 +601,7 @@ menu "BLE 5.x Features"
 
         config BT_NIMBLE_EXT_SCAN
             bool "Enable extended scanning"
-            depends on BT_NIMBLE_50_FEATURE_SUPPORT && BT_NIMBLE_ROLE_OBSERVER
+            depends on BT_NIMBLE_50_FEATURE_SUPPORT
             default y
             help
                 Enable this option to do extended scanning.

components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c

@@ -96,7 +96,11 @@ int ble_hci_trans_hs_cmd_tx(uint8_t *cmd)
         rc = BLE_HS_ETIMEOUT_HCI;
     }
 
+#if MYNEWT_VAL(MP_RUNTIME_ALLOC)
+    ble_transport_free(BLE_HCI_CMD, cmd);
+#else
     ble_transport_free(cmd);
+#endif
     return rc;
 }
 

components/bt/host/nimble/port/include/ble_svc_gap_stub.h

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "esp_log.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BLE_SVC_GAP_TAG "ble_svc_gap"
+
+/**
+ * Stub implementations for GAP service APIs.
+ * These are compiled when CONFIG_BT_NIMBLE_GAP_SERVICE is disabled.
+ */
+
+static inline void ble_svc_gap_init(void)
+{
+    ESP_LOGE(BLE_SVC_GAP_TAG, "GAP service not enabled. Enable CONFIG_BT_NIMBLE_GAP_SERVICE to use this API.");
+}
+
+static inline int ble_svc_gap_device_name_set(const char *name)
+{
+    (void)name;
+    ESP_LOGE(BLE_SVC_GAP_TAG, "GAP service not enabled. Enable CONFIG_BT_NIMBLE_GAP_SERVICE to use this API.");
+    return -1;
+}
+
+static inline const char *ble_svc_gap_device_name(void)
+{
+    ESP_LOGE(BLE_SVC_GAP_TAG, "GAP service not enabled. Enable CONFIG_BT_NIMBLE_GAP_SERVICE to use this API.");
+    return NULL;
+}
+
+static inline int ble_svc_gap_device_appearance_set(uint16_t appearance)
+{
+    ESP_LOGE(BLE_SVC_GAP_TAG, "GAP service not enabled. Enable CONFIG_BT_NIMBLE_GAP_SERVICE to use this API.");
+    return -1;
+}
+
+static inline int ble_svc_gap_device_key_material_set(uint8_t *session_key, uint8_t *iv)
+{
+    ESP_LOGE(BLE_SVC_GAP_TAG, "GAP service not enabled. Enable CONFIG_BT_NIMBLE_GAP_SERVICE to use this API.");
+    return -1;
+}
+
+#ifdef __cplusplus
+}
+#endif

components/bt/host/nimble/port/include/esp_nimble_cfg.h

@@ -1804,9 +1804,11 @@
 #endif
 
 /*** @apache-mynewt-nimble/nimble/host/services/gap */
+#ifdef CONFIG_BT_NIMBLE_GAP_SERVICE
 #ifndef MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE
 #define MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE CONFIG_BT_NIMBLE_SVC_GAP_APPEARANCE
 #endif
+#endif
 
 #ifndef MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE_WRITE_PERM
 #if CONFIG_BT_NIMBLE_SVC_GAP_APPEAR_WRITE_PERM
@@ -1819,20 +1821,24 @@
 #endif //CONFIG_BT_NIMBLE_SVC_GAP_APPEAR_WRITE_PERM
 #endif //MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE_WRITE_PERM
 
+#ifdef CONFIG_BT_NIMBLE_GAP_SERVICE
 #ifndef MYNEWT_VAL_BLE_SVC_GAP_CENTRAL_ADDRESS_RESOLUTION
 #define MYNEWT_VAL_BLE_SVC_GAP_CENTRAL_ADDRESS_RESOLUTION \
         CONFIG_BT_NIMBLE_SVC_GAP_CENT_ADDR_RESOLUTION
 #endif
+#endif
 
 #ifndef CONFIG_BT_NIMBLE_SVC_GAP_DEVICE_NAME
 #define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME "nimble"
 #else
 #define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME CONFIG_BT_NIMBLE_SVC_GAP_DEVICE_NAME
 #endif
 
+#ifdef CONFIG_BT_NIMBLE_GAP_SERVICE
 #ifndef MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH
 #define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH CONFIG_BT_NIMBLE_GAP_DEVICE_NAME_MAX_LEN // According to the specification, the maximum length should be 248
 #endif
+#endif
 
 #ifndef MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_WRITE_PERM
 #if CONFIG_BT_NIMBLE_SVC_GAP_NAME_WRITE_PERM
@@ -2208,4 +2214,20 @@
 #endif
 #endif
 
+#ifndef MYNEWT_VAL_MP_RUNTIME_ALLOC
+#ifdef CONFIG_BT_NIMBLE_MEMPOOL_RUNTIME_ALLOC
+#define MYNEWT_VAL_MP_RUNTIME_ALLOC (1)
+#else
+#define MYNEWT_VAL_MP_RUNTIME_ALLOC (0)
+#endif
+#endif
+
+#ifndef MYNEWT_VAL_MP_BLOCK_REUSED
+#ifdef CONFIG_BT_NIMBLE_MEMPOOL_BLOCK_REUSED
+#define MYNEWT_VAL_MP_BLOCK_REUSED (1)
+#else
+#define MYNEWT_VAL_MP_BLOCK_REUSED (0)
+#endif
+#endif
+
 #endif

components/cxx/test_apps/.build-test-rules.yml

@@ -5,3 +5,7 @@ components/cxx/test_apps:
     - if: IDF_TARGET in ["esp32", "esp32c3"]
       temporary: true
       reason: the other targets are not tested yet
+  disable:
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14402

components/driver/test_apps/.build-test-rules.yml

@@ -21,6 +21,9 @@ components/driver/test_apps/legacy_adc_driver:
     - if: IDF_TARGET == "esp32c61"
       temporary: true
       reason: lack of runners
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14357
   depends_components:
     - efuse
     - esp_driver_i2s
@@ -57,6 +60,10 @@ components/driver/test_apps/legacy_rmt_driver:
 components/driver/test_apps/legacy_rtc_temp_driver:
   disable:
     - if: SOC_TEMP_SENSOR_SUPPORTED != 1
+  disable_test:
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14834
 
 components/driver/test_apps/legacy_sigma_delta_driver:
   disable:
@@ -76,6 +83,9 @@ components/driver/test_apps/legacy_twai:
   disable:
     - if: SOC_TWAI_SUPPORTED != 1 or SOC_TWAI_SUPPORT_FD == 1
       reason: legacy driver doesn't support FD
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14393
   depends_filepatterns:
     - components/driver/twai/**/*
   depends_components:

components/driver/test_apps/legacy_adc_driver/pytest_legacy_adc.py

@@ -18,6 +18,7 @@
     ['esp32', 'esp32s2', 'esp32s3', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32c5', 'esp32p4'],
     indirect=['target'],
 )
+@pytest.mark.temp_skip_ci(targets=['esp32p4'], reason='p4 rev3 migration, IDF-14357')
 def test_legacy_adc(dut: Dut) -> None:
     dut.run_all_single_board_cases()
 

components/driver/test_apps/legacy_rtc_temp_driver/pytest_legacy_temp_sensor_driver.py

@@ -18,5 +18,6 @@
     ['esp32s2', 'esp32c3', 'esp32s3', 'esp32c2', 'esp32c6', 'esp32h2', 'esp32p4', 'esp32c5', 'esp32c61'],
     indirect=['target'],
 )
+@pytest.mark.temp_skip_ci(targets=['esp32p4'], reason='p4 rev3 migration, IDF-14834')
 def test_legacy_temp_sensor_driver(dut: Dut) -> None:
     dut.run_all_single_board_cases(timeout=120)

components/driver/test_apps/legacy_twai/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |
 
 # Enable Socket CAN Device with bitrate 250Kbps
 

components/driver/test_apps/legacy_twai/pytest_twai.py

@@ -19,9 +19,7 @@
     ],
     indirect=True,
 )
-@idf_parametrize(
-    'target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3', 'esp32p4'], indirect=['target']
-)
+@idf_parametrize('target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3'], indirect=['target'])
 def test_legacy_twai_self(dut: Dut) -> None:
     dut.run_all_single_board_cases(group='twai-loop-back')
 
@@ -46,9 +44,7 @@ def fixture_create_socket_can() -> Bus:
     ],
     indirect=True,
 )
-@idf_parametrize(
-    'target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3', 'esp32p4'], indirect=['target']
-)
+@idf_parametrize('target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3'], indirect=['target'])
 def test_legacy_twai_listen_only(dut: Dut, socket_can: Bus) -> None:
     dut.serial.hard_reset()
     dut.expect_exact('Press ENTER to see the list of tests')
@@ -76,9 +72,7 @@ def test_legacy_twai_listen_only(dut: Dut, socket_can: Bus) -> None:
     ],
     indirect=True,
 )
-@idf_parametrize(
-    'target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3', 'esp32p4'], indirect=['target']
-)
+@idf_parametrize('target', ['esp32', 'esp32c3', 'esp32c6', 'esp32h2', 'esp32s2', 'esp32s3'], indirect=['target'])
 def test_legacy_twai_remote_request(dut: Dut, socket_can: Bus) -> None:
     dut.serial.hard_reset()
     dut.expect_exact('Press ENTER to see the list of tests')

components/efuse/test_apps/.build-test-rules.yml

@@ -3,6 +3,10 @@
 components/efuse/test_apps:
   enable:
     - if: (INCLUDE_DEFAULT == 1 and SOC_EFUSE_SUPPORTED == 1) or IDF_TARGET == "linux")
+  disable:
+    - if: IDF_TARGET == "esp32p4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14403
   disable_test:
     - if: IDF_TARGET in ["esp32s2", "esp32s3"]
       reason: eFuse for S2 and S3 is similar to the C3 chip, so we only test for C3.

components/efuse/test_apps/README.md

@@ -1,3 +1,3 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-H21 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 | Linux |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | --------- | -------- | -------- | -------- | -------- | ----- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-H21 | ESP32-H4 | ESP32-S2 | ESP32-S3 | Linux |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | --------- | -------- | -------- | -------- | ----- |
 

components/efuse/test_apps/pytest_efuse.py

@@ -6,7 +6,8 @@
 
 
 @pytest.mark.temp_skip_ci(
-    targets=['esp32s2', 'esp32s3'], reason='eFuse for S2 and S3 is similar to the C3 chip, so testing on C3 is enough'
+    targets=['esp32s2', 'esp32s3', 'esp32p4'],
+    reason='eFuse for S2 and S3 is similar to the C3 chip, so testing on C3 is enough',
 )
 @pytest.mark.generic
 @idf_parametrize('target', ['supported_targets'], indirect=['target'])

components/esp_adc/test_apps/.build-test-rules.yml

@@ -4,6 +4,10 @@ components/esp_adc/test_apps/adc:
   disable:
     - if: SOC_ADC_SUPPORTED != 1
     - if: CONFIG_NAME == "gdma_iram_safe" and IDF_TARGET in ["esp32", "esp32s2", "esp32c2"]
+  disable_test:
+    - if: IDF_TARGET == "esp32p4" and CONFIG_NAME != "esp32p4_eco4"
+      temporary: true
+      reason: p4 rev3 migration # TODO: IDF-14357
   depends_components:
     - esp_adc
     - esp_driver_gpio