boards: st: nucleo_wb09ke: add support for Nucleo-WB09KE board

This commit adds support for the ST Nucleo-WB09KE board.

Signed-off-by: Mathieu Choplain <mathieu.choplain@st.com>

boards/st/nucleo_wb09ke/Kconfig.nucleo_wb09ke

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+# Copyright (c) 2024 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_NUCLEO_WB09KE
+	select SOC_STM32WB09XX

boards/st/nucleo_wb09ke/arduino_r3_connector.dtsi

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+/*
+ * Copyright (c) 2024 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	arduino_header: connector {
+		compatible = "arduino-header-r3";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+
+		/* Most pins are not connected to the Arduino
+		 * connector in default hardware configuration.
+		 * Only the connected pins are provided here.
+		 */
+		gpio-map = <14 0 &gpiob 15 0>,  /* D8 */
+			   <16 0 &gpioa 9 0>,	/* D10 */
+			   <17 0 &gpioa 11 0>,	/* D11 */
+			   <18 0 &gpioa 8 0>,	/* D12 */
+			   <19 0 &gpiob 3 0>,	/* D13 */
+			   <20 0 &gpiob 7 0>,	/* D14 */
+			   <21 0 &gpiob 6 0>;	/* D15 */
+	};
+};
+
+arduino_serial: &usart1 {};

boards/st/nucleo_wb09ke/board.cmake

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+# SPDX-License-Identifier: Apache-2.0
+board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=sw")
+
+include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

boards/st/nucleo_wb09ke/board.yml

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+board:
+  name: nucleo_wb09ke
+  vendor: st
+  socs:
+    - name: stm32wb09

boards/st/nucleo_wb09ke/doc/index.rst

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+.. _nucleo_wb09ke_board:
+
+ST Nucleo WB09KE
+################
+
+Overview
+********
+
+The Nucleo WB09KE board is a Bluetooth |reg| Low Energy wireless and ultra-low-power
+board featuring an ARM Cortex |reg|-M0+ based STM32WB09KEV MCU, embedding a
+powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy
+SIG specification v5.4.
+
+.. image:: img/nucleo_wb09ke.webp
+   :align: center
+   :alt: Nucleo WB09KE
+
+More information about the board can be found on the `Nucleo WB09KE webpage`_.
+
+Hardware
+********
+
+Nucleo WB09KE provides the following hardware components:
+
+- STM32WB09KEV in VFQFPN32 package
+- ARM |reg| 32-bit Cortex |reg|-M0+ CPU
+- 64 MHz maximal CPU frequebct
+- 512 KB Flash
+- 64 KB SRAM
+
+More information about STM32WB09KEV can be found here:
+
+- `WB09KE on www.st.com`_
+- `STM32WB09 reference manual`_
+
+
+Supported Features
+==================
+
+The Zephyr ``nucleo_wb09ke`` board target supports the following hardware features:
+
++-----------+------------+-------------------------------------+
+| Interface | Controller | Driver/Component                    |
++===========+============+=====================================+
+| NVIC      | on-chip    | nested vector interrupt controller  |
++-----------+------------+-------------------------------------+
+| UART      | on-chip    | serial port-polling;                |
+|           |            | serial port-interrupt               |
++-----------+------------+-------------------------------------+
+| PINMUX    | on-chip    | pinmux                              |
++-----------+------------+-------------------------------------+
+| GPIO      | on-chip    | gpio                                |
++-----------+------------+-------------------------------------+
+| FLASH     | on-chip    | internal flash memory               |
++-----------+------------+-------------------------------------+
+
+
+Other hardware features are not yet supported on this Zephyr port.
+
+The default configuration can be found in the defconfig file:
+:zephyr_file:`boards/st/nucleo_wb09ke/nucleo_wb09ke_defconfig`
+
+
+Connections and IOs
+===================
+
+Default Zephyr Peripheral Mapping:
+----------------------------------
+
+- USART1 TX/RX       : PA1/PB0 (ST-Link Virtual COM Port)
+- BUTTON (B1)        : PA0
+- BUTTON (B2)        : PB5
+- BUTTON (B3)        : PB14
+- LED (LD1/BLUE)     : PB1
+- LED (LD2/GREEN)    : PB4
+- LED (LD3/RED)      : PB2
+
+For more details, please refer to the `Nucleo WB09KE board User Manual`_.
+
+Programming and Debugging
+*************************
+
+Nucleo WB09KE board includes an ST-LINK-V3EC embedded debug tool interface.
+
+Applications for the ``nucleo_w09ke`` board target can be built and flashed
+in the usual way (see :ref:`build_an_application` and :ref:`application_run`
+for more details).
+
+Flashing
+========
+
+The board is configured to be flashed using the west `STM32CubeProgrammer`_ runner,
+so :ref:`it must be installed <stm32cubeprog-flash-host-tools>` beforehand.
+
+Alternatively, OpenOCD can also be used to flash the board using the
+``--runner`` (or ``-r``) option:
+
+.. code-block:: console
+
+   $ west flash --runner openocd
+
+Flashing an application to Nucleo WB09KE
+----------------------------------------
+
+Connect the Nucleo WB09KE to your host computer using the USB port,
+then run a serial host program to connect with your Nucleo board:
+
+.. code-block:: console
+
+   $ minicom -D /dev/ttyACM0
+
+Now build and flash an application. Here is an example for
+:ref:`hello_world`.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: nucleo_wb09ke
+   :goals: build flash
+
+You should see the following message on the console:
+
+.. code-block:: console
+
+   Hello World! nucleo_wb09ke/stm32wb09
+
+
+Debugging
+=========
+
+You can debug an application in the usual way.  Here is an example for the
+:ref:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: nucleo_wb09ke
+   :maybe-skip-config:
+   :goals: debug
+
+.. _`Nucleo WB09KE webpage`:
+   https://www.st.com/en/evaluation-tools/nucleo-wb09ke.html
+
+.. _`WB09KE on www.st.com`:
+   https://www.st.com/en/microcontrollers-microprocessors/stm32wb09ke.html
+
+.. _`STM32WB09 reference manual`:
+   https://www.st.com/resource/en/reference_manual/rm0505-stm32wb09xe-ultralow-power-wireless-32bit-mcu-armbased-cortexm0-with-bluetooth-low-energy-and-24-ghz-radio-solution-stmicroelectronics.pdf
+
+.. _`Nucleo WB09KE board User Manual`:
+   https://www.st.com/resource/en/user_manual/um3345-stm32wb09-nucleo64-board-mb1801-and-mb2032-stmicroelectronics.pdf
+
+.. _STM32CubeProgrammer:
+   https://www.st.com/en/development-tools/stm32cubeprog.html

boards/st/nucleo_wb09ke/nucleo_wb09ke.dts

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+/*
+ * Copyright (c) 2024 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <st/wb0/stm32wb09Xe.dtsi>
+#include <st/wb0/stm32wb09kevx-pinctrl.dtsi>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+#include "arduino_r3_connector.dtsi"
+
+/ {
+	model = "STMicroelectronics STM32WB09KE-NUCLEO board";
+	compatible = "st,stm32wb09ke-nucleo";
+
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	chosen {
+		zephyr,console = &usart1;
+		zephyr,shell-uart = &usart1;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds: leds {
+		compatible ="gpio-leds";
+		blue_led_1: led_0 {
+			gpios = <&gpiob 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		green_led_1: led_1 {
+			gpios = <&gpiob 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		red_led_1: led_2 {
+			gpios = <&gpiob 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button_1: button_0 {
+			label = "SW1";
+			gpios = <&gpioa 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		user_button_2: button_1 {
+			label = "SW2";
+			gpios = <&gpiob 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			zephyr,code = <INPUT_KEY_1>;
+		};
+		user_button_3: button_2 {
+			label = "SW3";
+			gpios = <&gpiob 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			zephyr,code = <INPUT_KEY_2>;
+		};
+	};
+
+	aliases {
+		led0 = &blue_led_1;
+		led1 = &green_led_1;
+		led2 = &red_led_1;
+		sw0 = &user_button_1;
+		sw1 = &user_button_2;
+		sw2 = &user_button_3;
+	};
+};
+
+&pwrc {
+	smps-mode = "RUN";
+	smps-bom = <3>;
+};
+
+&clk_lse {
+	status = "okay";
+};
+
+&clk_hse {
+	status = "okay";
+};
+
+&clk_hsi {
+	status = "okay";
+};
+
+&pll {
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(64)>;
+	clksys-prescaler = <1>;
+	slow-clock = <&clk_lse>;
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_tx_pa1 &usart1_rx_pb0>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};

boards/st/nucleo_wb09ke/nucleo_wb09ke.yaml

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+identifier: nucleo_wb09ke
+name: ST Nucleo WB09KE
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+ram: 64
+flash: 512
+supported:
+  - gpio
+  - arduino_gpio
+vendor: st

boards/st/nucleo_wb09ke/nucleo_wb09ke_defconfig

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+# SPDX-License-Identifier: Apache-2.0
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y

boards/st/nucleo_wb09ke/support/openocd.cfg

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+source [find interface/stlink-dap.cfg]
+
+transport select "dapdirect_swd"
+
+source [find target/stm32wb0x.cfg]