boards: we: add Oceanus-I EV board

Add support for Oceanus-I EV
board from WE.

Signed-off-by: Wajdi ELMuhtadi <wajdi.elmuhtadi@we-online.com>

boards/we/oceanus1ev/Kconfig.defconfig

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+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_WE_OCEANUS1EV
+
+if LORA
+
+config MAIN_STACK_SIZE
+	default 2048
+
+endif # LORA
+
+endif # BOARD_WE_OCEANUS1EV

boards/we/oceanus1ev/Kconfig.we_oceanus1ev

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+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_WE_OCEANUS1EV
+	select SOC_STM32WLE5XX

boards/we/oceanus1ev/board.cmake

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+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=STM32WLE5CC" "--speed=4000" "--reset-after-load")
+
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/we/oceanus1ev/board.yml

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+board:
+  name: we_oceanus1ev
+  full_name: Oceanus-I EV
+  vendor: we
+  revision:
+    format: "major.minor.patch"
+    default: "1.1.0"
+    exact: true
+    revisions:
+    - name: "1.1.0"
+  socs:
+  - name: stm32wle5xx

boards/we/oceanus1ev/doc/index.rst

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+.. zephyr:board:: we_oceanus1ev
+
+Overview
+********
+
+The we_oceanus1ev board is an evaluation board of the `Oceanus-I`_ radio module.
+It provides support for the `STM32WLE5CC`_ ARM CPU and
+the following devices:
+
+* CLOCK
+* FLASH
+* :abbr:`GPIO (General Purpose Input Output)`
+* :abbr:`I2C (Inter-Integrated Circuit)`
+* :abbr:`NVIC (Nested Vectored Interrupt Controller)`
+* RADIO (LoRa)
+* :abbr:`RTC (STM32 RTC System Clock)`
+* :abbr:`SPI (Serial Peripheral Interface)`
+* :abbr:`UART (Universal asynchronous receiver-transmitter)`
+* :abbr:`WDT (Watchdog Timer)`
+
+Hardware
+********
+
+The board has below hardware features:
+
+- `Oceanus-I`_, 256KB Flash, 64KB RAM with external antenna
+- 1 FTDI chip (USB to UART) converter
+- 1 I2C WE sensor EV-Boards connector
+- 1 SPI WE sensor EV-Boards connector
+- 2 application LEDs
+- 1 application, and 1 reset push-button
+
+Supported Features
+==================
+
+The ``we_oceanus1ev`` board supports the following
+hardware features:
+
++-----------+------------+----------------------+
+| Interface | Controller | Driver/Component     |
++===========+============+======================+
+| CLOCK     | on-chip    | clock_control        |
++-----------+------------+----------------------+
+| FLASH     | on-chip    | flash                |
++-----------+------------+----------------------+
+| GPIO      | on-chip    | gpio                 |
++-----------+------------+----------------------+
+| I2C(M)    | on-chip    | i2c                  |
++-----------+------------+----------------------+
+| MPU       | on-chip    | arch/arm             |
++-----------+------------+----------------------+
+| NVIC      | on-chip    | arch/arm             |
++-----------+------------+----------------------+
+| RADIO     | on-chip    | LoRa                 |
++-----------+------------+----------------------+
+| RTC       | on-chip    | system clock         |
++-----------+------------+----------------------+
+| SPI(M/S)  | on-chip    | spi                  |
++-----------+------------+----------------------+
+| UART      | on-chip    | serial               |
++-----------+------------+----------------------+
+| WDT       | on-chip    | watchdog             |
++-----------+------------+----------------------+
+
+Programming and Debugging
+*************************
+
+Applications for the ``we_oceanus1ev`` board can be built the
+usual way (see :ref:`build_an_application`).
+
+The board debugged and flashed with an external debug probe connected
+to the SWD pins, current native support is for the JLink debug probe.
+
+Flashing
+========
+
+Connect the board to your host computer and build and flash an application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: we_oceanus1ev
+   :goals: build flash
+
+Run a serial terminal to connect with your board. By default, ``lpuart1`` is
+accessible via the on-board FTDI USB to UART converter.
+
+Debugging
+=========
+
+You can debug an application in the usual way.  Here is an example for the
+:zephyr:code-sample:`blinky` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: we_oceanus1ev
+   :maybe-skip-config:
+   :goals: debug
+
+References
+**********
+
+.. target-notes::
+
+.. _`Oceanus-I`: https://www.we-online.com/katalog/de/OCEANUS-I
+.. _`STM32WLE5CC`: https://www.st.com/en/microcontrollers-microprocessors/stm32wle5cc.html

boards/we/oceanus1ev/we_oceanus1ev.dts

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+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <we/oceanus1.dtsi>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "Oceanus-I EV";
+	compatible = "we,oceanus1ev";
+
+	chosen {
+		zephyr,console = &lpuart1;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		yellow_led: led_1 {
+			gpios = <&gpioa 7 GPIO_ACTIVE_HIGH>;
+			label = "LED_1";
+		};
+
+		blue_led: led_2 {
+			gpios = <&gpioa 4 GPIO_ACTIVE_HIGH>;
+			label = "LED_2";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		wake_up_button: button_0 {
+			label = "/WAKE_UP";
+			gpios = <&gpioa 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+	aliases {
+		led0 = &yellow_led;
+		led1 = &blue_led;
+		sw0 = &wake_up_button;
+		lora0 = &lora;
+		watchdog0 = &iwdg;
+	};
+};
+
+stm32_lp_tick_source: &lptim1 {
+	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x80000000>,
+			<&rcc STM32_SRC_LSE LPTIM1_SEL(3)>;
+	status = "okay";
+};
+
+&clk_lsi {
+	status = "okay";
+};
+
+&pll {
+	div-m = <1>;
+	mul-n = <6>;
+	div-r = <2>;
+	div-q = <2>;
+	clocks = <&clk_hsi>;
+	status = "okay";
+};
+
+&iwdg {
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(48)>;
+	cpu1-prescaler = <1>;
+	ahb3-prescaler = <1>;
+	apb1-prescaler = <1>;
+	apb2-prescaler = <1>;
+};
+
+&lpuart1 {
+	pinctrl-0 = <&lpuart1_tx_pa2 &lpuart1_rx_pa3>;
+	pinctrl-names = "default";
+	current-speed = <9600>;
+	status = "okay";
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb7>;
+	pinctrl-names = "default";
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&spi1 {
+	pinctrl-0 = <&spi1_sck_pb3 &spi1_miso_pb4 &spi1_mosi_pb5>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&rtc {
+	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00000400>,
+		 <&rcc STM32_SRC_LSE RTC_SEL(2)>;
+	status = "okay";
+};
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 DT_SIZE_K(32)>;
+			read-only;
+		};
+		slot0_partition: partition@8000 {
+			label = "image-0";
+			reg = <0x00008000 DT_SIZE_K(108)>;
+		};
+		slot1_partition: partition@23000 {
+			label = "image-1";
+			reg = <0x00023000 DT_SIZE_K(108)>;
+		};
+		storage_partition: partition@3e000 {
+			label = "storage";
+			reg = <0x0003e000 DT_SIZE_K(8)>;
+		};
+	};
+};

boards/we/oceanus1ev/we_oceanus1ev_1_1_0.yaml

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+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: we_oceanus1ev@1.1.0
+name: Oceanus-I EV (rev 1.1)
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+ram: 64
+flash: 256
+supported:
+  - counter
+  - gpio
+  - i2c
+  - nvs
+  - spi
+  - uart
+  - watchdog
+  - lora
+vendor: we

boards/we/oceanus1ev/we_oceanus1ev_defconfig

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+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable HW stack protection
+CONFIG_HW_STACK_PROTECTION=y