esp32p4: introduce the target

Add esp32p4 target to tools and Kconfig
Create directories and files that are essential for `idf.py --preview set-target esp32p4`

Kconfig

@@ -90,6 +90,11 @@ mainmenu "Espressif IoT Development Framework Configuration"
         select FREERTOS_UNICORE
         select IDF_TARGET_ARCH_RISCV
 
+    config IDF_TARGET_ESP32P4
+        bool
+        default "y" if IDF_TARGET="esp32p4"
+        select IDF_TARGET_ARCH_RISCV
+
     config IDF_TARGET_ESP32H2
         bool
         default "y" if IDF_TARGET="esp32h2"
@@ -109,6 +114,7 @@ mainmenu "Espressif IoT Development Framework Configuration"
         default 0x000C if IDF_TARGET_ESP32C2
         default 0x000D if IDF_TARGET_ESP32C6
         default 0x0010 if IDF_TARGET_ESP32H2
+        default 0x0012 if IDF_TARGET_ESP32P4
         default 0xFFFF
 
 

components/bootloader_support/include/esp_app_format.h

@@ -20,6 +20,7 @@ typedef enum {
     ESP_CHIP_ID_ESP32C2 = 0x000C, /*!< chip ID: ESP32-C2 */
     ESP_CHIP_ID_ESP32C6 = 0x000D, /*!< chip ID: ESP32-C6 */
     ESP_CHIP_ID_ESP32H2 = 0x0010, /*!< chip ID: ESP32-H2 */
+    ESP_CHIP_ID_ESP32P4 = 0x0012, /*!< chip ID: ESP32-P4 */
     ESP_CHIP_ID_INVALID = 0xFFFF /*!< Invalid chip ID (we defined it to make sure the esp_chip_id_t is 2 bytes size) */
 } __attribute__((packed)) esp_chip_id_t;
 

components/esp_hw_support/include/esp_chip_info.h

@@ -27,6 +27,7 @@ typedef enum {
     CHIP_ESP32C2 = 12, //!< ESP32-C2
     CHIP_ESP32C6 = 13, //!< ESP32-C6
     CHIP_ESP32H2 = 16, //!< ESP32-H2
+    CHIP_ESP32P4 = 18, //!< ESP32-P4
     CHIP_POSIX_LINUX = 999, //!< The code is running on POSIX/Linux simulator
 } esp_chip_model_t;
 

components/esp_phy/CMakeLists.txt

@@ -1,5 +1,10 @@
 idf_build_get_property(idf_target IDF_TARGET)
 
+if(IDF_TARGET STREQUAL "esp32p4")
+    # TODO: IDF-7460
+    return()
+endif()
+
 set(srcs "src/phy_override.c" "src/lib_printf.c")
 
 if(CONFIG_APP_NO_BLOBS)

tools/cmake/dfu.cmake

@@ -17,6 +17,8 @@ function(__add_dfu_targets)
         return()
     elseif("${target}" STREQUAL "esp32h2")
         return()
+    elseif("${target}" STREQUAL "esp32p4")
+        set(dfu_pid "12")
     elseif("${target}" STREQUAL "linux")
         return()
     else()

tools/cmake/toolchain-esp32p4.cmake

@@ -0,0 +1,20 @@
+include($ENV{IDF_PATH}/tools/cmake/utilities.cmake)
+
+set(CMAKE_SYSTEM_NAME Generic)
+
+set(CMAKE_C_COMPILER riscv32-esp-elf-gcc)
+set(CMAKE_CXX_COMPILER riscv32-esp-elf-g++)
+set(CMAKE_ASM_COMPILER riscv32-esp-elf-gcc)
+set(_CMAKE_TOOLCHAIN_PREFIX riscv32-esp-elf-)
+
+remove_duplicated_flags("-march=rv32imafc_zicsr_zifencei -mabi=ilp32f ${CMAKE_C_FLAGS}" UNIQ_CMAKE_C_FLAGS)
+set(CMAKE_C_FLAGS "${UNIQ_CMAKE_C_FLAGS}" CACHE STRING "C Compiler Base Flags" FORCE)
+remove_duplicated_flags("-march=rv32imafc_zicsr_zifencei -mabi=ilp32f ${CMAKE_CXX_FLAGS}" UNIQ_CMAKE_CXX_FLAGS)
+set(CMAKE_CXX_FLAGS "${UNIQ_CMAKE_CXX_FLAGS}" CACHE STRING "C++ Compiler Base Flags" FORCE)
+remove_duplicated_flags("-march=rv32imafc_zicsr_zifencei -mabi=ilp32f ${CMAKE_ASM_FLAGS}" UNIQ_CMAKE_ASM_FLAGS)
+set(CMAKE_ASM_FLAGS "${UNIQ_CMAKE_CXX_FLAGS}" CACHE STRING "Asm Compiler Base Flags" FORCE)
+
+remove_duplicated_flags("-nostartfiles -march=rv32imafc_zicsr_zifencei -mabi=ilp32f --specs=nosys.specs \
+                        ${CMAKE_EXE_LINKER_FLAGS}"
+                        UNIQ_CMAKE_SAFE_EXE_LINKER_FLAGS)
+set(CMAKE_EXE_LINKER_FLAGS "${UNIQ_CMAKE_SAFE_EXE_LINKER_FLAGS}" CACHE STRING "Linker Base Flags" FORCE)

tools/cmake/uf2.cmake

@@ -16,6 +16,8 @@ function(__add_uf2_targets)
         set(uf2_family_id "0x2b88d29c")
     elseif("${target}" STREQUAL "esp32c6") # TODO: IDF-5626
         set(uf2_family_id "0x2b88d29c")
+    elseif("${target}" STREQUAL "esp32p4")
+        set(uf2_family_id "0x2b88d29c")
     elseif("${target}" STREQUAL "linux")
         return()
     else()

tools/idf_py_actions/constants.py

@@ -33,7 +33,7 @@ if os.name != 'nt':
 URL_TO_DOC = 'https://docs.espressif.com/projects/esp-idf'
 
 SUPPORTED_TARGETS = ['esp32', 'esp32s2', 'esp32c3', 'esp32s3', 'esp32c2', 'esp32c6', 'esp32h2']
-PREVIEW_TARGETS = ['linux']
+PREVIEW_TARGETS = ['linux', 'esp32p4']
 
 OPENOCD_TAGET_CONFIG_DEFAULT = '-f interface/ftdi/esp32_devkitj_v1.cfg -f target/{target}.cfg'
 OPENOCD_TAGET_CONFIG: Dict[str, str] = {

tools/tools.json

@@ -92,7 +92,8 @@
         "esp32c3",
         "esp32c2",
         "esp32c6",
-        "esp32h2"
+        "esp32h2",
+        "esp32p4"
       ],
       "version_cmd": [
         "riscv32-esp-elf-gdb-no-python",