boards: samd20_xpro: Convert to HWMv2

Port the board to HWMv2.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>

boards/atmel/sam0/samd20_xpro/Kconfig.samd20_xpro

@@ -0,0 +1,6 @@
+# Copyright (c) 2018 Sean Nyekjaer
+# Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_SAMD20_XPRO
+	select SOC_SAMD20J18

boards/atmel/sam0/samd20_xpro/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: samd20_xpro
+  vendor: atmel
+  socs:
+    - name: samd20j18

boards/atmel/sam0/samd20_xpro/doc/index.rst

@@ -1,4 +1,4 @@
-.. _atsamd20_xpro:
+.. _samd20_xpro:
 
 SAM D20 Xplained Pro Evaluation Kit
 ###################################
@@ -15,14 +15,14 @@ hardware.
 .. figure:: img/atsamd20_xpro.jpg
     :width: 500px
     :align: center
-    :alt: ATSAMD20-XPRO
+    :alt: SAMD20-XPRO
 
-    ATSAMD20-XPRO (Credit: `Microchip Technology`_)
+    SAMD20-XPRO (Credit: `Microchip Technology`_)
 
 Hardware
 ********
 
-- ATSAMD20J18 ARM Cortex-M0+ processor at 48 MHz
+- SAMD20J18 ARM Cortex-M0+ processor at 48 MHz
 - 32.768 kHz crystal oscillator
 - 256 KiB flash memory and 32 KiB of RAM
 - One yellow user LED
@@ -33,7 +33,7 @@ Hardware
 Supported Features
 ==================
 
-The atsamd20_xpro board configuration supports the following hardware
+The samd20_xpro board configuration supports the following hardware
 features:
 
 .. list-table::
@@ -73,7 +73,7 @@ features:
 Other hardware features are not currently supported by Zephyr.
 
 The default configuration can be found in the Kconfig
-:zephyr_file:`boards/arm/atsamd20_xpro/atsamd20_xpro_defconfig`.
+:zephyr_file:`boards/atmel/sam0/samd20_xpro/samd20_xpro_defconfig`.
 
 Connections and IOs
 ===================
@@ -114,7 +114,7 @@ Flashing
 
    .. zephyr-app-commands::
       :zephyr-app: samples/hello_world
-      :board: atsamd20_xpro
+      :board: samd20_xpro
       :goals: build
       :compact:
 
@@ -140,11 +140,11 @@ Flashing
 
    .. zephyr-app-commands::
       :zephyr-app: samples/hello_world
-      :board: atsamd20_xpro
+      :board: samd20_xpro
       :goals: flash
       :compact:
 
-   You should see "Hello World! atsamd20_xpro" in your terminal.
+   You should see "Hello World! samd20_xpro" in your terminal.
 
 References
 **********

boards/atmel/sam0/samd20_xpro/samd20_xpro.dts

@@ -8,12 +8,12 @@
 #include <freq.h>
 #include <atmel/samd20.dtsi>
 #include <atmel/samx2xx18.dtsi>
-#include "atsamd20_xpro-pinctrl.dtsi"
+#include "samd20_xpro-pinctrl.dtsi"
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 
 / {
 	model = "SAM D20 Xplained Pro";
-	compatible = "atsamd20,xpro", "atmel,samd20j18", "atmel,samd20";
+	compatible = "samd20,xpro", "atmel,samd20j18", "atmel,samd20";
 
 	chosen {
 		zephyr,console = &sercom3;

boards/atmel/sam0/samd20_xpro/samd20_xpro.yaml

@@ -1,13 +1,13 @@
-identifier: atsamd20_xpro
+identifier: samd20_xpro
 name: SAM D20 Xplained Pro
 type: mcu
 arch: arm
-ram: 32
-flash: 256
 toolchain:
   - zephyr
   - gnuarmemb
   - xtools
+flash: 256
+ram: 32
 supported:
   - adc
   - flash

boards/atmel/sam0/samd20_xpro/samd20_xpro_defconfig

@@ -1,14 +1,12 @@
+# Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_SAMD20=y
-CONFIG_SOC_PART_NUMBER_SAMD20J18=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K_AS_MAIN=y
-CONFIG_BOARD_ATSAMD20_XPRO=y
+
 CONFIG_BUILD_OUTPUT_HEX=y
 
 CONFIG_CONSOLE=y
-CONFIG_GPIO=y
 CONFIG_SERIAL=y
 CONFIG_UART_CONSOLE=y
 CONFIG_UART_INTERRUPT_DRIVEN=y

boards/boards_legacy/arm/atsamd20_xpro/Kconfig.board

@@ -1,8 +0,0 @@
-# SAM D20 Xplained Pro Board configuration
-
-# Copyright (c) 2018 Sean Nyekjaer
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_ATSAMD20_XPRO
-	bool "SAM D20 Xplained Pro"
-	depends on SOC_PART_NUMBER_SAMD20J18

boards/boards_legacy/arm/atsamd20_xpro/Kconfig.defconfig

@@ -1,8 +0,0 @@
-# SAM D20 Xplained Pro board configuration
-
-# Copyright (c) 2018 Sean Nyekjaer
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD
-	default "atsamd20_xpro"
-	depends on BOARD_ATSAMD20_XPRO