feat(openthread): support esp32p4 as ot_br

Author: tanyanquan

examples/openthread/.build-test-rules.yml

@@ -23,8 +23,8 @@
 
 examples/openthread/ot_br:
   enable:
-    - if: (SOC_WIFI_SUPPORTED == 1 and IDF_TARGET != "esp32c61") and CONFIG_NAME != "native_radio"
-    - if: (SOC_WIFI_SUPPORTED == 1 and IDF_TARGET != "esp32c61") and (SOC_IEEE802154_SUPPORTED == 1 and CONFIG_NAME == "native_radio")
+    - if: (SOC_WIFI_SUPPORTED == 1 and IDF_TARGET == "esp32p4") and CONFIG_NAME != "native_radio"
+    - if: SOC_WIFI_SUPPORTED == 1 and (SOC_IEEE802154_SUPPORTED == 1 and CONFIG_NAME == "native_radio")
   disable_test:
     - if: IDF_TARGET not in ["esp32s3"]
       reason: only test on esp32s3

examples/openthread/ot_br/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | -------- | -------- |
 
 # OpenThread Border Router Example
 
@@ -33,7 +33,12 @@ ESP32 pin | ESP32-H2 pin
 The example could also run on a single SoC which supports both Wi-Fi and Thread (e.g., ESP32-C6), but since there is only one RF path in ESP32-C6, which means Wi-Fi and Thread can't receive simultaneously, it has a significant impact on performance. Hence the two SoCs solution is recommended.
 
 #### **Ethernet based Thread Border Router**
-Similar to the previous Wi-Fi based Thread Border Route setup, but a device with Ethernet interface is required, such as [ESP32-Ethernet-Kit](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-ethernet-kit.html)
+Similar to the previous Wi-Fi based Thread Border Route setup, but a device with Ethernet interface is required, such as [ESP32-Ethernet-Kit](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-ethernet-kit.html) or [ESP32-P4-Function-EV-Board](https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32p4/esp32-p4-function-ev-board/index.html).
+
+#### **ESP32-P4 using Wi-Fi Co-Processor**
+This example can also be run using Wi-Fi using the ESP32-P4, which does not natively support Wi-Fi, by incorporating the ESP-Hosted component to enable Wi-Fi connectivity for the ESP32-P4 through a ESP32-C6 co-processor. You may refer to the [ESP-Hosted-MCU documentation](https://github.com/espressif/esp-hosted-mcu/blob/main/docs/esp32_p4_function_ev_board.md) for more information about ESP-Hosted.
+
+If you are using the ESP32-P4-Function-EV-Board, you may refer to the [OpenThread Border Router Example](https://github.com/espressif/esp-thread-br/tree/main/examples/basic_thread_border_router) for running a Wi-Fi based Thread Border Router.
 
 ### Configure the project
 

examples/openthread/ot_br/main/idf_component.yml

@@ -1,7 +1,7 @@
 ## IDF Component Manager Manifest File
 dependencies:
   espressif/esp_ot_cli_extension:
-    version: "~1.3.0"
+    version: "~1.3.1"
   espressif/mdns: "^1.0.3"
   ## Required IDF version
   idf:

examples/openthread/ot_br/sdkconfig.defaults.esp32p4

@@ -0,0 +1,6 @@
+# Enable BR auto start for Ethernet builds
+CONFIG_OPENTHREAD_BR_AUTO_START=y
+
+# Enable PPP support as a workaround to ensure LWIP thread-lib compatibility for Ethernet builds
+CONFIG_LWIP_PPP_SUPPORT=y
+CONFIG_LWIP_PPP_SERVER_SUPPORT=y