dts: boards: we: add board Ophelia-IV

add new board Ophelia-IV

Signed-off-by: Matthias Hauser <matthias.hauser@we-online.de>

boards/we/ophelia4ev/Kconfig.defconfig

@@ -0,0 +1,9 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_OPHELIA4EV_NRF54L15_CPUAPP
+
+config ROM_START_OFFSET
+	default 0x800 if BOOTLOADER_MCUBOOT
+
+endif # BOARD_OPHELIA4EV_NRF54L15_CPUAPP

boards/we/ophelia4ev/Kconfig.ophelia4ev

@@ -0,0 +1,6 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_OPHELIA4EV
+	select SOC_NRF54L15_CPUAPP if BOARD_OPHELIA4EV_NRF54L15_CPUAPP
+	select SOC_NRF54L15_CPUFLPR if BOARD_OPHELIA4EV_NRF54L15_CPUFLPR

boards/we/ophelia4ev/board.cmake

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+include(${ZEPHYR_BASE}/boards/nordic/nrf54l15dk/board.cmake)

boards/we/ophelia4ev/board.yml

@@ -0,0 +1,9 @@
+board:
+  name: ophelia4ev
+  full_name: Ophelia-IV DK
+  vendor: we
+  socs:
+  - name: nrf54l15
+    variants:
+    - name: xip
+      cpucluster: cpuflpr

boards/we/ophelia4ev/doc/index.rst

@@ -0,0 +1,90 @@
+.. zephyr:board:: ophelia4ev
+
+Overview
+********
+
+.. note::
+   You can find more information about the nRF54L15 SoC on the `nRF54L15 website`_.
+   For the nRF54L15 technical documentation and other resources (such as
+   SoC Datasheet), see the `nRF54L15 documentation`_ page.
+
+The OPHELIA-IV EV board is an evaluation board of the Ophelia-IV radio module.
+
+Hardware
+********
+
+The Ophelia-IV uses the internal low frequency RC oscillator
+and provides the so called smart antenna connection, that allows
+to choose between the module's integrated PCB antenna and an external
+antenna that can be connected to the available SMA connector.
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+Programming and Debugging
+*************************
+
+Applications for the ``ophelia4ev/nrf54l15/cpuapp`` board target can be
+built, flashed, and debugged in the usual way. See
+:ref:`build_an_application` and :ref:`application_run` for more details on
+building and running.
+
+Applications for the ``ophelia4ev/nrf54l15/cpuflpr`` board target need
+to be built using sysbuild to include the ``vpr_launcher`` image for the application core.
+
+Enter the following command to compile ``hello_world`` for the FLPR core:
+
+.. code-block:: console
+
+   west build -p -b ophelia4ev/nrf54l15/cpuflpr --sysbuild
+
+
+Flashing
+========
+
+As an example, this section shows how to build and flash the :zephyr:code-sample:`hello_world`
+application.
+
+To build and program the sample to the OPHELIA-IV EV, complete the following steps:
+
+First, connect the OPHELIA-IV EV to you computer using the USB port on the board.
+Then connect a segger flasher to the SWD connector available on the board.
+Next, build the sample by running the following command:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: ophelia4ev/nrf54l15/cpuapp
+   :goals: build flash
+
+.. warning::
+
+   When programming the device, you might get an error similar to the following message::
+
+    ERROR: The operation attempted is unavailable due to readback protection in
+    ERROR: your device. Please use --recover to unlock the device.
+
+   This error occurs when readback protection is enabled.
+   To disable the readback protection, you must *recover* your device.
+
+   Enter the following command to recover the core::
+
+    west flash --recover
+
+   The ``--recover`` command erases the flash memory and then writes a small binary into
+   the recovered flash memory.
+   This binary prevents the readback protection from enabling itself again after a pin
+   reset or power cycle.
+
+Follow the instructions in the :ref:`nordic_segger` page to install
+and configure all the necessary software. Further information can be
+found in :ref:`nordic_segger_flashing`.
+
+References
+**********
+
+.. target-notes::
+
+.. _nRF54L15 website: https://www.nordicsemi.com/Products/nRF54L15
+.. _nRF54L15 documentation: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/nrf54l/index.html

boards/we/ophelia4ev/ophelia4ev_common.dtsi

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "ophelia4ev_nrf54l15-pinctrl.dtsi"
+
+/ {
+	leds {
+		compatible = "gpio-leds";
+
+		led0: led_0 {
+			gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 0";
+		};
+
+		led1: led_1 {
+			gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 1";
+		};
+
+		led2: led_2 {
+			gpios = <&gpio2 0 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 2";
+		};
+
+		led3: led_3 {
+			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 3";
+		};
+	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+
+		/*
+		 * PWM signal can be exposed on GPIO pin only within same domain.
+		 * There is only one domain which contains both PWM and GPIO:
+		 * PWM20/21/22 and GPIO Port P1.
+		 * Only LEDs connected to P1 can work with PWM, for example LED3.
+		 */
+		pwm_led3: pwm_led_3 {
+			pwms = <&pwm20 0 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+
+		button0: button_0 {
+			gpios = <&gpio2 3 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button 0";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+
+		button1: button_1 {
+			gpios = <&gpio1 12 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button 1";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+
+		button2: button_2 {
+			gpios = <&gpio1 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button 2";
+			zephyr,code = <INPUT_KEY_2>;
+		};
+
+		button3: button_3 {
+			gpios = <&gpio1 14 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button 3";
+			zephyr,code = <INPUT_KEY_3>;
+		};
+	};
+
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+		led2 = &led2;
+		led3 = &led3;
+		pwm-led0 = &pwm_led3;
+		sw0 = &button0;
+		sw1 = &button1;
+		sw2 = &button2;
+		sw3 = &button3;
+		watchdog0 = &wdt31;
+	};
+};
+
+&uart20 {
+	current-speed = <115200>;
+	pinctrl-0 = <&uart20_default>;
+	pinctrl-1 = <&uart20_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&uart30 {
+	current-speed = <115200>;
+	pinctrl-0 = <&uart30_default>;
+	pinctrl-1 = <&uart30_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&pwm20 {
+	status = "okay";
+	pinctrl-0 = <&pwm20_default>;
+	pinctrl-1 = <&pwm20_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+/* Get a node label for wi-fi spi to use in shield files */
+wifi_spi: &spi22 {};

boards/we/ophelia4ev/ophelia4ev_nrf54l15-pinctrl.dtsi

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	/omit-if-no-ref/ uart20_default: uart20_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 4)>,
+				<NRF_PSEL(UART_RTS, 1, 6)>;
+		};
+
+		group2 {
+			psels = <NRF_PSEL(UART_RX, 1, 15)>,
+				<NRF_PSEL(UART_CTS, 1, 2)>;
+			bias-pull-up;
+		};
+	};
+
+	/omit-if-no-ref/ uart20_sleep: uart20_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 4)>,
+				<NRF_PSEL(UART_RX, 1, 15)>,
+				<NRF_PSEL(UART_RTS, 1, 6)>,
+				<NRF_PSEL(UART_CTS, 1, 2)>;
+			low-power-enable;
+		};
+	};
+
+	/omit-if-no-ref/ uart30_default: uart30_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 2, 8)>,
+				<NRF_PSEL(UART_RTS, 2, 10)>;
+		};
+
+		group2 {
+			psels = <NRF_PSEL(UART_RX, 2, 7)>,
+				<NRF_PSEL(UART_CTS, 2, 9)>;
+			bias-pull-up;
+		};
+	};
+
+	/omit-if-no-ref/ uart30_sleep: uart30_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 2, 8)>,
+				<NRF_PSEL(UART_RX, 2, 7)>,
+				<NRF_PSEL(UART_RTS, 2, 10)>,
+				<NRF_PSEL(UART_CTS, 2, 9)>;
+			low-power-enable;
+		};
+	};
+
+	/omit-if-no-ref/ spi00_default: spi00_default {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 2, 1)>,
+				<NRF_PSEL(SPIM_MOSI, 2, 2)>,
+				<NRF_PSEL(SPIM_MISO, 2, 4)>;
+		};
+	};
+
+	/omit-if-no-ref/ spi00_sleep: spi00_sleep {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 2, 1)>,
+				<NRF_PSEL(SPIM_MOSI, 2, 2)>,
+				<NRF_PSEL(SPIM_MISO, 2, 4)>;
+				low-power-enable;
+		};
+	};
+
+	/omit-if-no-ref/ pwm20_default: pwm20_default {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 1, 10)>;
+		};
+	};
+
+	/omit-if-no-ref/ pwm20_sleep: pwm20_sleep {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 1, 10)>;
+			low-power-enable;
+		};
+	};
+
+	/omit-if-no-ref/ grtc_default: grtc_default {
+		group1 {
+			psels = <NRF_PSEL(GRTC_CLKOUT_FAST, 1, 8)>,
+				<NRF_PSEL(GRTC_CLKOUT_32K, 0, 4)>;
+		};
+	};
+
+	/omit-if-no-ref/ grtc_sleep: grtc_sleep {
+		group1 {
+			psels = <NRF_PSEL(GRTC_CLKOUT_FAST, 1, 8)>,
+				<NRF_PSEL(GRTC_CLKOUT_32K, 0, 4)>;
+			low-power-enable;
+		};
+	};
+};

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuapp.dts

@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf54l15_cpuapp.dtsi>
+#include "ophelia4ev_common.dtsi"
+
+/ {
+	model = "Ophelia-IV EV Application MCU";
+	compatible = "we,ophelia4ev_nrf54l15-cpuapp";
+
+	chosen {
+		zephyr,console = &uart20;
+		zephyr,shell-uart = &uart20;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,flash = &cpuapp_rram;
+		zephyr,sram = &cpuapp_sram;
+		zephyr,uart-mcumgr = &uart20;
+		zephyr,bt-mon-uart = &uart20;
+		zephyr,bt-c2h-uart = &uart20;
+		zephyr,flash-controller = &rram_controller;
+		zephyr,ieee802154 = &ieee802154;
+	};
+};
+
+&cpuapp_rram {
+	partitions {
+		compatible = "fixed-partitions";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x0 DT_SIZE_K(64)>;
+		};
+
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x10000 DT_SIZE_K(324)>;
+		};
+
+		slot0_ns_partition: partition@61000 {
+			label = "image-0-nonsecure";
+			reg = <0x61000 DT_SIZE_K(324)>;
+		};
+
+		slot1_partition: partition@b2000 {
+			label = "image-1";
+			reg = <0xb2000 DT_SIZE_K(324)>;
+		};
+
+		slot1_ns_partition: partition@103000 {
+			label = "image-1-nonsecure";
+			reg = <0x103000 DT_SIZE_K(324)>;
+		};
+
+		/* 32k from 0x154000 to 0x15bfff reserved for TF-M partitions */
+		storage_partition: partition@15c000 {
+			label = "storage";
+			reg = <0x15c000 DT_SIZE_K(36)>;
+		};
+	};
+};
+
+&cpuapp_sram {
+	status = "okay";
+};
+
+&lfxo {
+	load-capacitors = "internal";
+	load-capacitance-femtofarad = <15500>;
+};
+
+&hfxo {
+	load-capacitors = "internal";
+	load-capacitance-femtofarad = <15000>;
+};
+
+&regulators {
+	status = "okay";
+};
+
+&vregmain {
+	status = "okay";
+
+	regulator-initial-mode = <NRF5X_REG_MODE_DCDC>;
+};
+
+&grtc {
+	owned-channels = <0 1 2 3 4 5 6 7 8 9 10 11>;
+
+	/* Channels 7-11 reserved for Zero Latency IRQs, 3-4 for FLPR */
+	child-owned-channels = <3 4 7 8 9 10 11>;
+
+	status = "okay";
+};
+
+&uart20 {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpiote20 {
+	status = "okay";
+};
+
+&gpiote30 {
+	status = "okay";
+};
+
+&radio {
+	status = "okay";
+};
+
+&ieee802154 {
+	status = "okay";
+};
+
+&temp {
+	status = "okay";
+};
+
+&clock {
+	status = "okay";
+};
+
+&spi00 {
+	status = "okay";
+
+	cs-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
+	pinctrl-0 = <&spi00_default>;
+	pinctrl-1 = <&spi00_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	mx25r64: mx25r6435f@0 {
+		compatible = "jedec,spi-nor";
+		status = "okay";
+		reg = <0>;
+		spi-max-frequency = <8000000>;
+
+		jedec-id = [c2 28 17];
+
+		sfdp-bfp = [
+			e5 20 f1 ff  ff ff ff 03  44 eb 08 6b  08 3b 04 bb
+			ee ff ff ff  ff ff 00 ff  ff ff 00 ff  0c 20 0f 52
+			10 d8 00 ff  23 72 f5 00  82 ed 04 cc  44 83 48 44
+			30 b0 30 b0  f7 c4 d5 5c  00 be 29 ff  f0 d0 ff ff
+		];
+
+		size = <67108864>;
+		has-dpd;
+		t-enter-dpd = <10000>;
+		t-exit-dpd = <35000>;
+	};
+};
+
+&adc {
+	status = "okay";
+};

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuapp.yaml

@@ -0,0 +1,24 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: ophelia4ev/nrf54l15/cpuapp
+name: Ophelia4-EV-nRF54l15-Application
+type: mcu
+arch: arm
+toolchain:
+  - gnuarmemb
+  - zephyr
+sysbuild: true
+ram: 188
+flash: 324
+supported:
+  - adc
+  - counter
+  - dmic
+  - gpio
+  - i2c
+  - pwm
+  - retained_mem
+  - spi
+  - watchdog
+  - i2s

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuapp_defconfig

@@ -0,0 +1,21 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable hardware stack protection
+CONFIG_HW_STACK_PROTECTION=y
+
+# Use internal LFCLK
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuflpr.dts

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf54l15_cpuflpr.dtsi>
+#include "ophelia4ev_common.dtsi"
+
+/ {
+	model = "Ophelia-IV EV FLPR MCU";
+	compatible = "we,ophelia4ev_nrf54l15-cpuflpr";
+
+	chosen {
+		zephyr,console = &uart30;
+		zephyr,shell-uart = &uart30;
+		zephyr,code-partition = &cpuflpr_code_partition;
+		zephyr,flash = &cpuflpr_rram;
+		zephyr,sram = &cpuflpr_sram;
+	};
+};
+
+&cpuflpr_sram {
+	status = "okay";
+
+	/* size must be increased due to booting from SRAM */
+	reg = <0x20028000 DT_SIZE_K(96)>;
+
+	ranges = <0x0 0x20028000 0x18000>;
+};
+
+&cpuflpr_rram {
+	partitions {
+		compatible = "fixed-partitions";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		cpuflpr_code_partition: partition@0 {
+			label = "image-0";
+			reg = <0x0 DT_SIZE_K(96)>;
+		};
+	};
+};
+
+&grtc {
+	owned-channels = <3 4>;
+
+	status = "okay";
+};
+
+&uart30 {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpiote20 {
+	status = "okay";
+};
+
+&gpiote30 {
+	status = "okay";
+};

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuflpr.yaml

@@ -0,0 +1,18 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: ophelia4ev/nrf54l15/cpuflpr
+name: Ophelia4-EV-nRF54L15-Fast-Lightweight-Peripheral-Processor
+type: mcu
+arch: riscv
+toolchain:
+  - zephyr
+sysbuild: true
+ram: 96
+flash: 96
+supported:
+  - counter
+  - gpio
+  - i2c
+  - spi
+  - watchdog

boards/we/ophelia4ev/ophelia4ev_nrf54l15_cpuflpr_defconfig

@@ -0,0 +1,20 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+CONFIG_USE_DT_CODE_PARTITION=y
+
+# Execute from SRAM
+CONFIG_XIP=n
+
+# Use internal LFCLK
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

samples/bluetooth/beacon/sample.yaml

@@ -9,12 +9,14 @@ tests:
       - nrf51dk/nrf51822
       - nrf52dk/nrf52832
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     tags: bluetooth
     integration_platforms:
       - qemu_cortex_m3
       - nrf51dk/nrf51822
       - nrf52dk/nrf52832
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   sample.bluetooth.beacon-coex:
     extra_args: CONF_FILE="prj-coex.conf"
     harness: bluetooth

samples/bluetooth/hci_uart/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&uart20 {
+	compatible = "nordic,nrf-uarte";
+	current-speed = <1000000>;
+	status = "okay";
+	hw-flow-control;
+};

samples/bluetooth/peripheral_dis/sample.yaml

@@ -7,6 +7,7 @@ tests:
     platform_allow:
       - qemu_cortex_m3
       - qemu_x86
+      - ophelia4ev/nrf54l15/cpuapp
     tags: bluetooth
     integration_platforms:
       - qemu_cortex_m3

samples/bluetooth/peripheral_hr/sample.yaml

@@ -14,6 +14,7 @@ tests:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - qemu_cortex_m3
       - nrf52_bsim
@@ -23,6 +24,7 @@ tests:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     tags: bluetooth
   sample.bluetooth.peripheral_hr.minimal:
     harness: bluetooth

samples/bluetooth/peripheral_nus/sample.yaml

@@ -8,6 +8,7 @@ tests:
       - qemu_cortex_m3
       - qemu_x86
       - nrf52840dk/nrf52840
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - qemu_cortex_m3
     tags: bluetooth

samples/boards/nordic/nrf_sys_event/sample.yaml

@@ -19,6 +19,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
@@ -26,3 +27,4 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

samples/drivers/adc/adc_dt/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,55 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ */
+
+/ {
+	zephyr,user {
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 7>;
+	};
+};
+
+&adc {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN4>; /* P1.11 */
+		zephyr,resolution = <10>;
+	};
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN2>; /* P1.06 */
+		zephyr,resolution = <12>;
+		zephyr,oversampling = <8>;
+	};
+
+	channel@2 {
+		reg = <2>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_VDD>;
+		zephyr,resolution = <12>;
+		zephyr,oversampling = <8>;
+	};
+
+	channel@7 {
+		reg = <7>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN6>; /* P1.13 */
+		zephyr,input-negative = <NRF_SAADC_AIN7>; /* P1.14 */
+		zephyr,resolution = <12>;
+	};
+};

samples/drivers/adc/adc_dt/sample.yaml

@@ -17,6 +17,7 @@ tests:
       - nrf52840dk/nrf52840
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - mec172xevb_assy6906
       - gd32f350r_eval
       - gd32f450i_eval

samples/drivers/adc/adc_sequence/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,61 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ */
+
+/ {
+	zephyr,user {
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 7>;
+	};
+};
+
+/ {
+	aliases {
+		adc0 = &adc;
+	};
+};
+
+&adc {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN4>; /* P1.11 */
+		zephyr,resolution = <10>;
+	};
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN2>; /* P1.06 */
+		zephyr,resolution = <12>;
+		zephyr,oversampling = <8>;
+	};
+
+	channel@2 {
+		reg = <2>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_DVDD>; /* 0.9 V internal */
+		zephyr,resolution = <12>;
+		zephyr,oversampling = <8>;
+	};
+
+	channel@7 {
+		reg = <7>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN6>; /* P1.13 */
+		zephyr,input-negative = <NRF_SAADC_AIN7>; /* P1.14 */
+		zephyr,resolution = <12>;
+	};
+};

samples/drivers/adc/adc_sequence/sample.yaml

@@ -11,6 +11,7 @@ tests:
       - nrf52840dk/nrf52840
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - ucans32k1sic
       - frdm_mcxc242
       - stm32f3_disco

samples/drivers/audio/dmic/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	pdm20_default_alt: pdm20_default_alt {
+		group1 {
+			psels = <NRF_PSEL(PDM_CLK, 1, 12)>,
+				<NRF_PSEL(PDM_DIN, 1, 13)>;
+		};
+	};
+};
+
+dmic_dev: &pdm20 {
+	status = "okay";
+	pinctrl-0 = <&pdm20_default_alt>;
+	pinctrl-names = "default";
+	clock-source = "PCLK32M";
+};

samples/drivers/i2c/rtio_loopback/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_I2C_NRFX_TWIS_BUF_SIZE=256

samples/drivers/i2c/rtio_loopback/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * SDA = P1.8 and P1.9
+ * SCL = P1.10 and P1.11
+ */
+
+/ {
+	aliases {
+		i2c-controller = &i2c21;
+		i2c-controller-target = &i2c22;
+	};
+};
+
+&pinctrl {
+	i2c21_default: i2c21_default {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 8)>,
+				<NRF_PSEL(TWIS_SCL, 1, 10)>;
+			bias-pull-up;
+		};
+	};
+
+	i2c21_sleep: i2c21_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 8)>,
+				<NRF_PSEL(TWIS_SCL, 1, 10)>;
+			low-power-enable;
+		};
+	};
+
+	i2c22_default: i2c22_default {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 9)>,
+				<NRF_PSEL(TWIS_SCL, 1, 11)>;
+			bias-pull-up;
+		};
+	};
+
+	i2c22_sleep: i2c22_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 9)>,
+				<NRF_PSEL(TWIS_SCL, 1, 11)>;
+			low-power-enable;
+		};
+	};
+};
+
+&i2c21 {
+	pinctrl-0 = <&i2c21_default>;
+	pinctrl-1 = <&i2c21_sleep>;
+	pinctrl-names = "default", "sleep";
+	zephyr,concat-buf-size = <256>;
+	status = "okay";
+};
+
+&i2c22 {
+	compatible = "nordic,nrf-twis";
+	pinctrl-0 = <&i2c22_default>;
+	pinctrl-1 = <&i2c22_sleep>;
+	pinctrl-names = "default", "sleep";
+	status = "okay";
+};

samples/drivers/i2c/rtio_loopback/sample.yaml

@@ -16,3 +16,4 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

samples/drivers/mbox/Kconfig.sysbuild

@@ -18,6 +18,7 @@ config REMOTE_BOARD
 	default "frdm_mcxn947/mcxn947/cpu1" if $(BOARD) = "frdm_mcxn947"
 	default "nrf54h20dk/nrf54h20/cpuapp" if "$(BOARD)${BOARD_QUALIFIERS}" = "nrf54h20dk/nrf54h20/cpurad"
 	default "nrf54l15dk/nrf54l15/cpuflpr" if $(BOARD) = "nrf54l15dk"
+	default "ophelia4ev/cpuflpr" if $(BOARD) = "ophelia4ev"
 	default "stm32h747i_disco/stm32h747xx/m4" if $(BOARD) = "stm32h747i_disco"
 	default "esp32_devkitc_wroom/esp32/appcpu" if "$(BOARD)${BOARD_QUALIFIERS}" = "esp32_devkitc_wroom/esp32/procpu"
 	default "esp32s3_devkitm/esp32s3/appcpu" if "$(BOARD)${BOARD_QUALIFIERS}" = "esp32s3_devkitm/esp32s3/procpu"

samples/drivers/watchdog/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

samples/drivers/watchdog/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

samples/sensor/qdec/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		qdec0 = &qdec20;
+		qenca = &phase_a;
+		qencb = &phase_b;
+	};
+
+	encoder-emulate {
+		compatible = "gpio-leds";
+
+		phase_a: phase_a {
+			gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+		};
+
+		phase_b: phase_b {
+			gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&pinctrl {
+	qdec_pinctrl: qdec_pinctrl {
+		group1 {
+			psels = <NRF_PSEL(QDEC_A, 1, 8)>,
+				<NRF_PSEL(QDEC_B, 1, 10)>;
+		};
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&qdec20 {
+	status = "okay";
+	pinctrl-0 = <&qdec_pinctrl>;
+	pinctrl-names = "default";
+	steps = <120>;
+	led-pre = <500>;
+};

samples/sensor/qdec/sample.yaml

@@ -43,11 +43,13 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     harness_config:
       fixture: gpio_loopback
       type: multi_line

samples/subsys/fs/fs_sample/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_DISK_DRIVERS=y
+CONFIG_DISK_DRIVER_FLASH=y
+# There may be no files on internal SoC flash, so this Kconfig
+# options has ben enabled to create some if listing does not
+# find in the first place.
+CONFIG_FS_SAMPLE_CREATE_SOME_ENTRIES=y

samples/subsys/fs/fs_sample/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Because FAT FS needs at least 64kiB partition and default
+ * storage_partition is 36kiB for this board, we need to reorganize
+ * partitions to get at least 64KiB.
+ */
+/delete-node/ &slot0_partition;
+/delete-node/ &slot1_partition;
+/delete-node/ &slot0_ns_partition;
+/delete-node/ &slot1_ns_partition;
+/delete-node/ &storage_partition;
+
+&cpuapp_rram {
+	partitions {
+		compatible = "fixed-partitions";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		slot0_partition: parition@10000 {
+			reg = <0x00010000 DT_SIZE_K(300)>;
+		};
+
+		slot1_partition: partition@5b000 {
+			reg = <0x0005b000 DT_SIZE_K(300)>;
+		};
+
+		storage_partition: partition@a6000 {
+			label = "storage";
+			reg = <0x000a6000 DT_SIZE_K(128)>;
+		};
+	};
+};
+
+/ {
+	msc_disk0 {
+		status = "okay";
+		compatible = "zephyr,flash-disk";
+		partition = <&storage_partition>;
+		disk-name = "SD";
+		cache-size = <512>;
+	};
+};

samples/subsys/fs/fs_sample/sample.yaml

@@ -58,6 +58,9 @@ tests:
   sample.filesystem.fat_fs.nrf54l15dk:
     build_only: true
     platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.filesystem.fat_fs.ophelia4ev:
+    build_only: true
+    platform_allow: ophelia4ev/nrf54l15/cpuapp
   sample.filesystem.fat_fs.nrf52840dk_nrf52840.qspi:
     build_only: true
     platform_allow: nrf52840dk/nrf52840

samples/subsys/fs/littlefs/sample.yaml

@@ -24,6 +24,7 @@ tests:
       - stm32h747i_disco/stm32h747xx/m7
       - stm32h750b_dk
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - frdm_ke17z
       - frdm_ke17z512
       - s32z2xxdc2/s32z270/rtu0

samples/subsys/ipc/ipc_service/icmsg/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	soc {
+		reserved-memory {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			sram_rx: memory@20018000 {
+				reg = <0x20018000 0x0800>;
+			};
+
+			sram_tx: memory@20020000 {
+				reg = <0x20020000 0x0800>;
+			};
+		};
+	};
+
+	ipc {
+		ipc0: ipc0 {
+			compatible = "zephyr,ipc-icmsg";
+			dcache-alignment = <32>;
+			tx-region = <&sram_tx>;
+			rx-region = <&sram_rx>;
+			mboxes = <&cpuapp_vevif_rx 20>, <&cpuapp_vevif_tx 21>;
+			mbox-names = "rx", "tx";
+			status = "okay";
+		};
+	};
+};
+
+&cpuapp_vevif_rx {
+	status = "okay";
+};
+
+&cpuapp_vevif_tx {
+	status = "okay";
+};

samples/sysbuild/hello_world/sample.yaml

@@ -48,8 +48,10 @@ tests:
   sample.sysbuild.hello_world.nrf54l15dk_nrf54l15_cpuflpr:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_args:
 
       - SB_CONF_FILE=sysbuild/nrf54l15dk_nrf54l15_cpuflpr.conf

tests/bluetooth/tester/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1,26 @@
+# CONFIG_TEST enforces minimal logging, which we don't want
+CONFIG_TEST=n
+
+CONFIG_ASSERT=y
+# Enable the option below to measure stack usage
+#CONFIG_INIT_STACKS=y
+CONFIG_THREAD_NAME=y
+CONFIG_HW_STACK_PROTECTION=y
+
+CONFIG_LOG=y
+CONFIG_LOG_BUFFER_SIZE=4096
+CONFIG_RTT_CONSOLE=y
+CONFIG_LOG_BACKEND_RTT=y
+CONFIG_LOG_BACKEND_RTT_MODE_DROP=y
+CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE=256
+CONFIG_USE_SEGGER_RTT=y
+CONFIG_SEGGER_RTT_BUFFER_SIZE_UP=4096
+CONFIG_LOG_BACKEND_SHOW_COLOR=n
+CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=1024
+
+CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_BTTESTER_LOG_LEVEL_DBG=y
+
+CONFIG_UART_INTERRUPT_DRIVEN=y
+
+CONFIG_BTTESTER_BTP_CMD_THREAD_STACK_SIZE=3072

tests/bluetooth/tester/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+/ {
+	chosen {
+		zephyr,uart-pipe = &uart20;
+	};
+};
+
+&uart20 {
+	compatible = "nordic,nrf-uarte";
+	current-speed = <115200>;
+	status = "okay";
+	hw-flow-control;
+};

tests/drivers/adc/adc_accuracy_test/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,27 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ */
+
+/ {
+	zephyr,user {
+		io-channels = <&adc 0>;
+		reference-mv = <1800>;
+		expected-accuracy = <64>;
+	};
+};
+
+&adc {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1_2";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN2>;
+		zephyr,resolution = <14>;
+	};
+};

tests/drivers/adc/adc_accuracy_test/testcase.yaml

@@ -23,6 +23,7 @@ tests:
       - nrf52840dk/nrf52840
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - ek_ra8d1
       - mck_ra8t1
       - ek_ra6e2

tests/drivers/adc/adc_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,43 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ */
+
+/ {
+	zephyr,user {
+		io-channels = <&adc 0>, <&adc 1> , <&adc 2>;
+	};
+};
+
+&adc {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 10)>;
+		zephyr,input-positive = <NRF_SAADC_AIN1>;
+		zephyr,resolution = <10>;
+	};
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1_4";
+		zephyr,reference = "ADC_REF_EXTERNAL0";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN4>;
+		zephyr,resolution = <12>;
+	};
+
+	channel@2 {
+		reg = <2>;
+		zephyr,gain = "ADC_GAIN_2_3";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 10)>;
+		zephyr,input-positive = <NRF_SAADC_AIN2>;
+		zephyr,resolution = <10>;
+	};
+};

tests/drivers/adc/adc_error_cases/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,11 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ */
+
+/ {
+	aliases {
+		adc = &adc;
+	};
+};

tests/drivers/adc/adc_error_cases/testcase.yaml

@@ -11,3 +11,4 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/audio/dmic_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		dmic-dev = &pdm20;
+	};
+};
+
+&pinctrl {
+	pdm20_default_alt: pdm20_default_alt {
+		group1 {
+			psels = <NRF_PSEL(PDM_CLK, 1, 12)>,
+				<NRF_PSEL(PDM_DIN, 1, 13)>;
+		};
+	};
+};
+
+dmic_dev: &pdm20 {
+	status = "okay";
+	pinctrl-0 = <&pdm20_default_alt>;
+	pinctrl-names = "default";
+	clock-source = "PCLK32M";
+};

tests/drivers/build_all/comparator/testcase.yaml

@@ -27,6 +27,7 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - nrf9280pdk/nrf9280/cpuapp
     integration_platforms:
       - nrf52dk/nrf52810
@@ -44,6 +45,7 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - nrf9280pdk/nrf9280/cpuapp
     integration_platforms:
       - nrf52dk/nrf52810
@@ -61,6 +63,7 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - nrf9280pdk/nrf9280/cpuapp
     integration_platforms:
       - nrf52dk/nrf52810
@@ -74,10 +77,12 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
       - nrf9280pdk/nrf9280/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.build_all.comparator.nrf_lpcomp.int_ref:
     extra_args:
       - DTC_OVERLAY_FILE="nrf_lpcomp/int_ref.overlay"
@@ -88,6 +93,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf9280pdk/nrf9280/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
       - nrf54h20dk/nrf54h20/cpuapp

tests/drivers/clock_control/clock_control_api/testcase.yaml

@@ -25,6 +25,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
   drivers.clock.clock_control_nrf5_lfclk_rc:
@@ -35,6 +36,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_args: CONF_FILE="nrf_lfclk_rc.conf"

tests/drivers/clock_control/nrf_clock_calibration/testcase.yaml

@@ -10,5 +10,6 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822

tests/drivers/clock_control/nrf_lf_clock_start/testcase.yaml

@@ -16,6 +16,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_configs:
       - CONFIG_SYSTEM_CLOCK_WAIT_FOR_STABILITY=y
       - CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
@@ -33,6 +34,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_configs:
       - CONFIG_SYSTEM_CLOCK_WAIT_FOR_AVAILABILITY=y
       - CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
@@ -48,6 +50,7 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf5340dk/nrf5340/cpunet
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -64,6 +67,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -80,6 +84,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -96,6 +101,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -112,6 +118,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -128,6 +135,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:
@@ -144,6 +152,7 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822
     extra_configs:

tests/drivers/clock_control/onoff/testcase.yaml

@@ -11,5 +11,6 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf9160dk/nrf9160
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf51dk/nrf51822

tests/drivers/comparator/gpio_loopback/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/gpio/gpio.h>
+
+/*
+ * P1.10 looped back to P1.11
+ */
+
+/ {
+	aliases {
+		test-comp = &comp;
+	};
+
+	zephyr,user {
+		test-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};

tests/drivers/comparator/gpio_loopback/snippets/nrf_comp/snippet.yml

@@ -10,6 +10,9 @@ boards:
   nrf54l15dk/nrf54l15/cpuapp:
     append:
       EXTRA_DTC_OVERLAY_FILE: boards/nrf54l15dk_nrf54l15_cpuapp.overlay
+  ophelia4ev/nrf54l15/cpuapp:
+    append:
+      EXTRA_DTC_OVERLAY_FILE: boards/nrf54l15dk_nrf54l15_cpuapp.overlay
   nrf5340dk/nrf5340/cpuapp:
     append:
       EXTRA_DTC_OVERLAY_FILE: boards/nrf5340dk_nrf5340_cpuapp.overlay

tests/drivers/comparator/gpio_loopback/snippets/nrf_lpcomp/snippet.yml

@@ -10,6 +10,9 @@ boards:
   nrf54l15dk/nrf54l15/cpuapp:
     append:
       EXTRA_DTC_OVERLAY_FILE: boards/nrf54l15dk_nrf54l15_cpuapp.overlay
+  ophelia4ev/nrf54l15/cpuapp:
+    append:
+      EXTRA_DTC_OVERLAY_FILE: boards/nrf54l15dk_nrf54l15_cpuapp.overlay
   nrf5340dk/nrf5340/cpuapp:
     append:
       EXTRA_DTC_OVERLAY_FILE: boards/nrf5340dk_nrf5340_cpuapp.overlay

tests/drivers/comparator/gpio_loopback/testcase.yaml

@@ -23,6 +23,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf5340dk/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.comparator.gpio_loopback.nrf_lpcomp:
     extra_args:
       - SNIPPET="gpio_loopback_nrf_lpcomp"
@@ -30,3 +31,4 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf5340dk/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/counter/counter_basic_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include "nrf54l15dk_nrf54l15_common.dtsi"

tests/drivers/counter/counter_basic_api/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include "nrf54l15dk_nrf54l15_common.dtsi"

tests/drivers/flash/common/testcase.yaml

@@ -48,6 +48,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.flash.common.tfm_ns:
     build_only: true
     filter: (CONFIG_FLASH_HAS_DRIVER_ENABLED and CONFIG_TRUSTED_EXECUTION_NONSECURE

tests/drivers/flash/negative_tests/testcase.yaml

@@ -9,3 +9,4 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/gpio/gpio_basic_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	resources {
+		compatible = "test-gpio-basic-api";
+		out-gpios = <&gpio1 10 0>;
+		in-gpios = <&gpio1 11 0>;
+	};
+};
+
+&gpiote20 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};

tests/drivers/gpio/gpio_basic_api/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1 @@
+#include "ophelia4ev_nrf54l15_cpuapp.overlay"

tests/drivers/i2c/i2c_target_api/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_I2C_NRFX_TWIS_BUF_SIZE=256

tests/drivers/i2c/i2c_target_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * SDA = P1.8 and P1.9
+ * SCL = P1.10 and P1.11
+ */
+
+&pinctrl {
+	i2c21_default: i2c21_default {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 8)>,
+				<NRF_PSEL(TWIS_SCL, 1, 10)>;
+			bias-pull-up;
+		};
+	};
+
+	i2c21_sleep: i2c21_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 8)>,
+				<NRF_PSEL(TWIS_SCL, 1, 10)>;
+			low-power-enable;
+		};
+	};
+
+	i2c22_default: i2c22_default {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 9)>,
+				<NRF_PSEL(TWIS_SCL, 1, 11)>;
+			bias-pull-up;
+		};
+	};
+
+	i2c22_sleep: i2c22_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIS_SDA, 1, 9)>,
+				<NRF_PSEL(TWIS_SCL, 1, 11)>;
+			low-power-enable;
+		};
+	};
+};
+
+&i2c21 {
+	pinctrl-0 = <&i2c21_default>;
+	pinctrl-1 = <&i2c21_sleep>;
+	pinctrl-names = "default", "sleep";
+	zephyr,concat-buf-size = <256>;
+	status = "okay";
+
+	eeprom1: eeprom@56 {
+		compatible = "zephyr,i2c-target-eeprom";
+		reg = <0x56>;
+		address-width = <8>;
+		size = <256>;
+	};
+};
+
+&i2c22 {
+	compatible = "nordic,nrf-twis";
+	pinctrl-0 = <&i2c22_default>;
+	pinctrl-1 = <&i2c22_sleep>;
+	pinctrl-names = "default", "sleep";
+	status = "okay";
+
+	eeprom0: eeprom@54 {
+		compatible = "zephyr,i2c-target-eeprom";
+		reg = <0x54>;
+		address-width = <8>;
+		size = <256>;
+	};
+};

tests/drivers/i2c/i2c_target_api/testcase.yaml

@@ -60,5 +60,6 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - max32690evkit/max32690/m4

tests/drivers/i2s/i2s_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* i2s-node0 is the transmitter/receiver */
+
+/ {
+	aliases {
+		i2s-node0 = &i2s20;
+	};
+};
+
+&pinctrl {
+	i2s20_default_alt: i2s20_default_alt {
+		group1 {
+			psels = <NRF_PSEL(I2S_SCK_M, 1, 11)>,
+				<NRF_PSEL(I2S_LRCK_M, 1, 12)>,
+				<NRF_PSEL(I2S_SDOUT, 1, 8)>,
+				<NRF_PSEL(I2S_SDIN, 1, 9)>;
+		};
+	};
+};
+
+&i2s20 {
+	status = "okay";
+	pinctrl-0 = <&i2s20_default_alt>;
+	pinctrl-names = "default";
+};

tests/drivers/i2s/i2s_speed/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* i2s-node0 is the transmitter/receiver */
+
+/ {
+	aliases {
+		i2s-node0 = &i2s20;
+	};
+};
+
+&pinctrl {
+	i2s20_default_alt: i2s20_default_alt {
+		group1 {
+			psels = <NRF_PSEL(I2S_SCK_M, 1, 11)>,
+				<NRF_PSEL(I2S_LRCK_M, 1, 12)>,
+				<NRF_PSEL(I2S_SDOUT, 1, 8)>,
+				<NRF_PSEL(I2S_SDIN, 1, 9)>;
+		};
+	};
+};
+
+&i2s20 {
+	status = "okay";
+	pinctrl-0 = <&i2s20_default_alt>;
+	pinctrl-names = "default";
+};

tests/drivers/mbox/mbox_error_cases/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	mbox-consumer {
+		compatible = "vnd,mbox-consumer";
+
+		mboxes = <&cpuapp_vevif_tx 21>, <&cpuapp_vevif_tx 32>,
+				 <&cpuapp_vevif_rx 20>, <&cpuapp_vevif_rx 32>;
+
+		mbox-names = "remote_valid", "remote_incorrect",
+					 "local_valid", "local_incorrect";
+
+	};
+};
+
+&cpuapp_vevif_rx {
+	status = "okay";
+};
+
+&cpuapp_vevif_tx {
+	status = "okay";
+};

tests/drivers/mbox/mbox_error_cases/sample.yaml

@@ -17,6 +17,8 @@ tests:
   tests.drivers.mbox_error_cases.nrf54l:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_args: SNIPPET=nordic-flpr

tests/drivers/pwm/pwm_gpio_loopback/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1 @@
+CONFIG_SKIP_EDGE_NUM=4

tests/drivers/pwm/pwm_gpio_loopback/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Test requires jumper between:
+ *  - PWM20 OUT[0] at P1.10 <-> GPIO input at P1.11
+ */
+
+/ {
+	zephyr,user {
+		pwms = <&pwm20 0 160000 PWM_POLARITY_NORMAL>;
+		gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
+	};
+};

tests/drivers/pwm/pwm_gpio_loopback/testcase.yaml

@@ -20,3 +20,4 @@ tests:
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/retained_mem/api/boards/ophelia4ev_nrf54l15_cpuapp.conf

@@ -0,0 +1 @@
+CONFIG_POWEROFF=y

tests/drivers/retained_mem/api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,22 @@
+/ {
+	cpuapp_sram@2002e000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x2002e000 DT_SIZE_K(4)>;
+		zephyr,memory-region = "RetainedMem";
+		status = "okay";
+
+		retainedmem0: retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	aliases {
+		retainedmemtestdevice = &retainedmem0;
+	};
+};
+
+&cpuapp_sram {
+	reg = <0x20000000 DT_SIZE_K(184)>;
+	ranges = <0x0 0x20000000 0x2e000>;
+};

tests/drivers/retained_mem/api/testcase.yaml

@@ -15,6 +15,7 @@ tests:
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - qemu_cortex_m3
     tags:

tests/drivers/sensor/temp_sensor/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,3 @@
+temp_sensor: &temp {
+	status = "okay";
+};

tests/drivers/spi/spi_controller_peripheral/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	spi22_default_alt: spi22_default_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 13)>,
+				<NRF_PSEL(SPIM_MISO, 1, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 1, 9)>;
+		};
+	};
+
+	spi22_sleep_alt: spi22_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 13)>,
+				<NRF_PSEL(SPIM_MISO, 1, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 1, 9)>;
+			low-power-enable;
+		};
+	};
+
+	spi21_default_alt: spi21_default_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIS_SCK, 1, 12)>,
+				<NRF_PSEL(SPIS_MISO, 1, 10)>,
+				<NRF_PSEL(SPIS_MOSI, 1, 8)>,
+				<NRF_PSEL(SPIS_CSN, 1, 14)>;
+		};
+	};
+
+	spi21_sleep_alt: spi21_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIS_SCK, 1, 12)>,
+				<NRF_PSEL(SPIS_MISO, 1, 10)>,
+				<NRF_PSEL(SPIS_MOSI, 1, 8)>,
+				<NRF_PSEL(SPIS_CSN, 1, 14)>;
+			low-power-enable;
+		};
+	};
+
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&spi22 {
+	status = "okay";
+	pinctrl-0 = <&spi22_default_alt>;
+	pinctrl-1 = <&spi22_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	overrun-character = <0x00>;
+	cs-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
+	zephyr,pm-device-runtime-auto;
+
+	dut_spi_dt: test-spi-dev@0 {
+		compatible = "vnd,spi-device";
+		reg = <0>;
+		spi-max-frequency = <DT_FREQ_M(16)>;
+	};
+};
+
+dut_spis: &spi21 {
+	compatible = "nordic,nrf-spis";
+	status = "okay";
+	def-char = <0x00>;
+	pinctrl-0 = <&spi21_default_alt>;
+	pinctrl-1 = <&spi21_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	/delete-property/rx-delay-supported;
+	/delete-property/rx-delay;
+	zephyr,pm-device-runtime-auto;
+};

tests/drivers/spi/spi_controller_peripheral/testcase.yaml

@@ -13,6 +13,7 @@ common:
     - nrf54h20dk/nrf54h20/cpuapp
     - nrf54h20dk/nrf54h20/cpurad
     - nrf54h20dk/nrf54h20/cpuppr
+    - ophelia4ev/nrf54l15/cpuapp
 
 tests:
   drivers.spi.spi_mode0:
@@ -65,6 +66,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54h20dk/nrf54h20/cpuppr
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.spi.spis_fast:
     # SPIS120 instance occupies P6 which is not available on nRF54H20 DK pin headers
@@ -77,6 +79,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54h20dk/nrf54h20/cpuppr
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.spi.pm_runtime:
     extra_configs:

tests/drivers/spi/spi_error_cases/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	spi22_default_alt: spi22_default_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 13)>,
+				<NRF_PSEL(SPIM_MISO, 1, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 1, 9)>;
+		};
+	};
+
+	spi22_sleep_alt: spi22_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 1, 13)>,
+				<NRF_PSEL(SPIM_MISO, 1, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 1, 9)>;
+			low-power-enable;
+		};
+	};
+
+	spi21_default_alt: spi21_default_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIS_SCK, 1, 12)>,
+				<NRF_PSEL(SPIS_MISO, 1, 10)>,
+				<NRF_PSEL(SPIS_MOSI, 1, 8)>,
+				<NRF_PSEL(SPIS_CSN, 1, 14)>;
+		};
+	};
+
+	spi21_sleep_alt: spi21_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(SPIS_SCK, 1, 12)>,
+				<NRF_PSEL(SPIS_MISO, 1, 10)>,
+				<NRF_PSEL(SPIS_MOSI, 1, 8)>,
+				<NRF_PSEL(SPIS_CSN, 1, 14)>;
+			low-power-enable;
+		};
+	};
+
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&spi22 {
+	status = "okay";
+	pinctrl-0 = <&spi22_default_alt>;
+	pinctrl-1 = <&spi22_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	overrun-character = <0x00>;
+	cs-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
+
+	dut_spi_dt: test-spi-dev@0 {
+		compatible = "vnd,spi-device";
+		reg = <0>;
+		spi-max-frequency = <4000000>;
+	};
+};
+
+dut_spis: &spi21 {
+	compatible = "nordic,nrf-spis";
+	status = "okay";
+	def-char = <0x00>;
+	pinctrl-0 = <&spi21_default_alt>;
+	pinctrl-1 = <&spi21_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	/delete-property/rx-delay-supported;
+	/delete-property/rx-delay;
+};

tests/drivers/spi/spi_error_cases/testcase.yaml

@@ -13,6 +13,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf52840dk/nrf52840
   drivers.spi.spi_error_cases.fast:

tests/drivers/spi/spi_loopback/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KGs
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	spi00_default: spi00_default {
+		group1 {
+			psels = <NRF_PSEL(SPIM_MISO, 2, 9)>;
+		};
+
+		group2 {
+			psels = <NRF_PSEL(SPIM_SCK, 2, 6)>,
+				<NRF_PSEL(SPIM_MOSI, 2, 8)>;
+			nordic,drive-mode = <NRF_DRIVE_E0E1>;
+		};
+	};
+
+	spi00_sleep: spi00_sleep {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 2, 6)>,
+				<NRF_PSEL(SPIM_MISO, 2, 9)>,
+				<NRF_PSEL(SPIM_MOSI, 2, 8)>;
+			low-power-enable;
+		};
+	};
+};
+
+/delete-node/ &mx25r64;
+
+&spi00 {
+	status = "okay";
+
+	pinctrl-0 = <&spi00_default>;
+	pinctrl-1 = <&spi00_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	overrun-character = <0x00>;
+	zephyr,pm-device-runtime-auto;
+
+	slow@0 {
+		compatible = "test-spi-loopback-slow";
+		reg = <0>;
+		spi-max-frequency = <DT_FREQ_M(2)>;
+	};
+
+	dut_fast: fast@0 {
+		compatible = "test-spi-loopback-fast";
+		reg = <0>;
+		spi-max-frequency = <DT_FREQ_M(4)>;
+	};
+};
+
+&gpio2 {
+	status = "okay";
+};

tests/drivers/spi/spi_loopback/testcase.yaml

@@ -248,16 +248,19 @@ tests:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.spi.nrf54l_16mhz:
     extra_args: EXTRA_DTC_OVERLAY_FILE="boards/nrf_at_16mhz.overlay"
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.spi.nrf54l_32mhz:
     extra_args: EXTRA_DTC_OVERLAY_FILE="boards/nrf_at_32mhz.overlay"
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.spi.ke1xz_flexio_spi.loopback:
     extra_args: DTC_OVERLAY_FILE="boards/frdm_ke1xz_flexio_spi.overlay"
     filter: CONFIG_DT_HAS_NXP_FLEXIO_ENABLED and

tests/drivers/timer/nrf_grtc_timer/testcase.yaml

@@ -10,5 +10,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpurad
       - nrf54h20dk/nrf54h20/cpuppr
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuflpr
     integration_platforms:
       - nrf54l20pdk/nrf54l20/cpuapp

tests/drivers/uart/uart_async_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+&spi00 {
+	status = "disabled";
+};
+
+&pinctrl {
+	uart21_default_alt: uart21_default_alt {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>;
+		};
+	};
+
+	uart21_sleep_alt: uart21_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>;
+			low-power-enable;
+		};
+	};
+
+	uart00_default_alt: uart00_default_alt {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 2, 8)>,
+				<NRF_PSEL(UART_RX, 2, 7)>;
+		};
+	};
+
+	uart00_sleep_alt: uart00_sleep_alt {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 2, 8)>,
+				<NRF_PSEL(UART_RX, 2, 7)>;
+			low-power-enable;
+		};
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	pinctrl-0 = <&uart21_default_alt>;
+	pinctrl-1 = <&uart21_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	current-speed = <115200>;
+};
+
+dut2: &uart00 {
+	status = "okay";
+	pinctrl-0 = <&uart00_default_alt>;
+	pinctrl-1 = <&uart00_sleep_alt>;
+	pinctrl-names = "default", "sleep";
+	current-speed = <4000000>;
+};

tests/drivers/uart/uart_async_api/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1 @@
+#include "ophelia4ev_nrf54l15_cpuapp.overlay"

tests/drivers/uart/uart_elementary/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+&pinctrl {
+	uart21_default: uart21_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+		};
+	};
+
+	uart21_sleep: uart21_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+			low-power-enable;
+		};
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart21_default>;
+	pinctrl-1 = <&uart21_sleep>;
+	pinctrl-names = "default", "sleep";
+	hw-flow-control;
+};

tests/drivers/uart/uart_elementary/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+&pinctrl {
+	uart21_default: uart21_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+		};
+	};
+
+	uart21_sleep: uart21_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+			low-power-enable;
+		};
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart21_default>;
+	pinctrl-1 = <&uart21_sleep>;
+	pinctrl-names = "default", "sleep";
+	hw-flow-control;
+};

tests/drivers/uart/uart_elementary/testcase.yaml

@@ -16,6 +16,8 @@ tests:
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54l15dk/nrf54l15/cpuflpr
       - nrf5340dk/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuflpr
       - esp32_devkitc_wrover/esp32/procpu
       - esp8684_devkitm
       - esp32c3_devkitm
@@ -53,6 +55,7 @@ tests:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_args: DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_dual_uart.overlay"
     extra_configs:
       - CONFIG_DUAL_UART_TEST=y
@@ -61,6 +64,7 @@ tests:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_args: DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_dual_uart.overlay"
     extra_configs:
       - CONFIG_DUAL_UART_TEST=y
@@ -69,6 +73,7 @@ tests:
     filter: CONFIG_SERIAL_SUPPORT_INTERRUPT
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuflpr
+      - ophelia4ev/nrf54l15/cpuflpr
     extra_args: DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuflpr_dual_uart.overlay"
     extra_configs:
       - CONFIG_DUAL_UART_TEST=y
@@ -76,6 +81,7 @@ tests:
     filter: CONFIG_SERIAL_SUPPORT_INTERRUPT
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuflpr
+      - ophelia4ev/nrf54l15/cpuflpr
     extra_args: DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuflpr_dual_uart.overlay"
     extra_configs:
       - CONFIG_DUAL_UART_TEST=y

tests/drivers/uart/uart_errors/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+&pinctrl {
+	uart21_default: uart21_default {
+		group1 {
+			psels = <NRF_PSEL(UART_RX, 1, 8)>,
+				<NRF_PSEL(UART_RTS, 1, 10)>;
+		};
+	};
+
+	uart21_sleep: uart21_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_RX, 1, 8)>,
+				<NRF_PSEL(UART_RTS, 1, 10)>;
+			low-power-enable;
+		};
+	};
+
+	uart22_default: uart22_default {
+		group1 {
+			psels =
+				<NRF_PSEL(UART_CTS, 1, 11)>;
+				bias-pull-up;
+		};
+
+		group2 {
+			psels = <NRF_PSEL(UART_TX, 1, 9)>;
+		};
+	};
+
+	uart22_sleep: uart22_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 9)>,
+				<NRF_PSEL(UART_CTS, 1, 11)>;
+			low-power-enable;
+		};
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart21_default>;
+	pinctrl-1 = <&uart21_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+dut_aux: &uart22 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart22_default>;
+	pinctrl-1 = <&uart22_sleep>;
+	pinctrl-names = "default", "sleep";
+	disable-rx;
+};

tests/drivers/uart/uart_errors/testcase.yaml

@@ -14,6 +14,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf5340dk/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
   drivers.uart.uart_errors.async:
     filter: CONFIG_SERIAL_SUPPORT_ASYNC
     platform_allow:
@@ -21,6 +22,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf5340dk/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     extra_configs:
       - CONFIG_UART_ASYNC_API=y
       - CONFIG_UART_INTERRUPT_DRIVEN=n

tests/drivers/uart/uart_mix_fifo_poll/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	uart21_default: uart21_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+		};
+	};
+
+	uart21_sleep: uart21_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>,
+				<NRF_PSEL(UART_RTS, 1, 8)>,
+				<NRF_PSEL(UART_CTS, 1, 9)>;
+			low-power-enable;
+		};
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart21_default>;
+	pinctrl-1 = <&uart21_sleep>;
+	pinctrl-names = "default", "sleep";
+	hw-flow-control;
+};
+
+counter_dev: &timer00 {
+	status = "okay";
+};
+
+&grtc {
+	interrupts = <228 2>;
+};

tests/drivers/uart/uart_mix_fifo_poll/testcase.yaml

@@ -15,6 +15,7 @@ common:
     - nrf54l15bsim/nrf54l15/cpuapp
     - nrf54h20dk/nrf54h20/cpuapp
     - nrf54h20dk/nrf54h20/cpurad
+    - ophelia4ev/nrf54l15/cpuapp
     - nrf52_bsim
   integration_platforms:
     - nrf52840dk/nrf52840

tests/drivers/uart/uart_pm/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	uart21_default: uart21_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>;
+		};
+	};
+
+	uart21_sleep: uart21_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 10)>,
+				<NRF_PSEL(UART_RX, 1, 11)>;
+			low-power-enable;
+		};
+	};
+};
+
+/ {
+	chosen {
+		zephyr,console = &uart20;
+	};
+};
+
+dut: &uart21 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart21_default>;
+	pinctrl-1 = <&uart21_sleep>;
+	pinctrl-names = "default", "sleep";
+};

tests/drivers/uart/uart_pm/testcase.yaml

@@ -12,6 +12,7 @@ common:
     - nrf54h20dk/nrf54h20/cpuapp
     - nrf52_bsim
     - nrf5340bsim/nrf5340/cpuapp
+    - ophelia4ev/nrf54l15/cpuapp
   harness_config:
     fixture: gpio_loopback
   depends_on: gpio
@@ -38,6 +39,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
       - nrf52_bsim
       - nrf5340bsim/nrf5340/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.uart.pm.enhanced_poll:
     extra_configs:
@@ -49,6 +51,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.uart.pm.int_driven:
     extra_configs:
@@ -68,6 +71,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.uart.pm.async:
     extra_configs:
@@ -87,3 +91,4 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/watchdog/wdt_basic_api/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

tests/drivers/watchdog/wdt_basic_api/boards/ophelia4ev_nrf54l15_cpuflpr.overlay

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

tests/drivers/watchdog/wdt_error_cases/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

tests/drivers/watchdog/wdt_error_cases/testcase.yaml

@@ -16,5 +16,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpurad
       - nrf9280pdk/nrf9280/cpuapp
       - nrf9280pdk/nrf9280/cpurad
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp

tests/drivers/watchdog/wdt_variables/boards/ophelia4ev_nrf54l15_cpuapp.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2025 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&wdt31 {
+	status = "okay";
+};

tests/drivers/watchdog/wdt_variables/testcase.yaml

@@ -17,8 +17,10 @@ tests:
       - nrf54l09pdk/nrf54l09/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l20pdk/nrf54l20/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
+      - ophelia4ev/nrf54l15/cpuapp
 
   drivers.watchdog.wdt_variables.54h_flpr:
     platform_allow: