boards: Convert arduino_opta_m4 to HWM v2

Port the board to HWMv2.

Additionally, change the board name to arduino_opta
as the compilation target is now fully explicit on the
core in use.
Besides, it will ease a potential addition of the m7 core.

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

boards/arduino/arduino_opta/Kconfig.arduino_opta

@@ -0,0 +1,5 @@
+# Copyright (c) 2023 Felipe Neves
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ARDUINO_OPTA
+	select SOC_STM32H747XX_M4

boards/arduino/arduino_opta/arduino_opta_stm32h747xx_m4.yaml

@@ -1,4 +1,4 @@
-identifier: arduino_opta_m4
+identifier: arduino_opta/stm32h747xx/m4
 name: ARDUINO OPTA (M4)
 type: mcu
 arch: arm

boards/arduino/arduino_opta/arduino_opta_stm32h747xx_m4_defconfig

@@ -1,11 +1,6 @@
 # Copyright (c) 2023 Felipe Neves
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32H7X=y
-CONFIG_SOC_STM32H747XX=y
-
-CONFIG_BOARD_ARDUINO_OPTA_M4=y
-
 # enable GPIO
 CONFIG_GPIO=y
 

boards/arduino/arduino_opta/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: arduino_opta
+  vendor: arduino
+  socs:
+    - name: stm32h747xx

boards/arduino/arduino_opta/doc/index.rst

@@ -1,7 +1,7 @@
 .. _arduino_opta_m4_board:
 
 Arduino OPTA M4-Core
-#######################
+####################
 
 Overview
 ********
@@ -63,7 +63,7 @@ The current Zephyr arduino_opta_m4 board configuration supports the following ha
 Other hardware features are not yet supported on Zephyr porting.
 
 The default configuration per core can be found in the defconfig files:
-``boards/arm/arduino_opta_m4/arduino_opta_m4_defconfig``
+:zephyr_file:`boards/arduino/arduino_opta/arduino_opta_m4_defconfig`
 
 Pin Mapping
 ===========
@@ -107,7 +107,7 @@ two cores. This is done in 3 ways:
 Programming and Debugging
 *************************
 
-Applications for the ``arduino_opta_m4`` use the regular Zephyr build commands.
+Applications for the ``arduino_opta`` use the regular Zephyr build commands.
 See :ref:`build_an_application` for more information about application builds.
 
 Flashing
@@ -135,7 +135,7 @@ Here is an example for the :zephyr:code-sample:`blinky` application on M4 core.
 
 .. zephyr-app-commands::
    :zephyr-app: samples/basic/blinky
-   :board: arduino_opta_m4
+   :board: arduino_opta/stm32h747xx/m4
    :goals: build flash
 
 Starting the application on the ARDUINO OPTA M4

boards/boards_legacy/arm/arduino_opta_m4/Kconfig.board

@@ -1,7 +0,0 @@
-# Copyright (c) 2023 Felipe Neves
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_ARDUINO_OPTA_M4
-	bool "Arduino OPTA Programmable Logic Controller M4 Core"
-	depends on SOC_STM32H747XX
-	select CPU_CORTEX_M4

boards/boards_legacy/arm/arduino_opta_m4/Kconfig.defconfig

@@ -1,9 +0,0 @@
-# Copyright (c) 2023 Felipe Neves
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_ARDUINO_OPTA_M4
-
-config BOARD
-	default "arduino_opta_m4"
-
-endif # BOARD_ARDUINO_OPTA_M4