boards: raytac: Add support for raytac_mdbt50q_cx_40_dongle

Add support for Raytac's new TYPE-C dongle.

Signed-off-by: Stanley Huang <stanley@raytac.com>

boards/raytac/mdbt50q_cx_40_dongle/CMakeLists.txt

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+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+zephyr_library_sources(board.c)

boards/raytac/mdbt50q_cx_40_dongle/Kconfig

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+# Raytac MDBT50Q-CX Dongle NRF52840 board configuration
+#
+# Copyright (c) 2018-2023 Nordic Semiconductor ASA
+# Copyright (c) 2025 Raytac Corporation.
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_RAYTAC_MDBT50Q_CX_40_DONGLE
+
+config BOARD_HAS_NRF5_BOOTLOADER
+	bool "Board has nRF5 bootloader"
+	default y
+	help
+	  If selected, applications are linked so that they can be loaded by Nordic
+	  nRF5 bootloader.
+
+endif # BOARD_RAYTAC_MDBT50Q_CX_40_DONGLE

boards/raytac/mdbt50q_cx_40_dongle/Kconfig.defconfig

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+# Raytac MDBT50Q-CX-40 Dongle NRF52840 board configuration
+#
+# Copyright (c) 2018-2023 Nordic Semiconductor ASA
+# Copyright (c) 2025 Raytac Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_RAYTAC_MDBT50Q_CX_40_DONGLE
+
+# To let the nRF5 bootloader load an application, the application
+# must be linked after Nordic MBR, that is factory-programmed on the board.
+
+# Nordic nRF5 bootloader exists outside of the partitions specified in the
+# DTS file, so we manually override FLASH_LOAD_OFFSET to link the application
+# correctly, after Nordic MBR.
+
+# When building MCUBoot, MCUBoot itself will select USE_DT_CODE_PARTITION
+# which will make it link into the correct partition specified in DTS file,
+# the offset is applied here so that the full partition size can be used when
+# the bootloader Kconfig option has been disabled.
+
+config FLASH_LOAD_OFFSET
+	default 0x1000
+	depends on BOARD_HAS_NRF5_BOOTLOADER && (MCUBOOT || !USE_DT_CODE_PARTITION)
+
+source "boards/common/usb/Kconfig.cdc_acm_serial.defconfig"
+
+endif # BOARD_RAYTAC_MDBT50Q_CX_40_DONGLE

boards/raytac/mdbt50q_cx_40_dongle/Kconfig.raytac_mdbt50q_cx_40_dongle

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+# Raytac MDBT50Q-CX-40 Dongle nRF52840 board configuration
+#
+# Copyright (c) 2018 Nordic Semiconductor ASA
+# Copyright (c) 2025 Raytac Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_RAYTAC_MDBT50Q_CX_40_DONGLE
+	select SOC_NRF52840_QIAA

boards/raytac/mdbt50q_cx_40_dongle/board.c

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+/*
+ * Copyright (c) 2018 Nordic Semiconductor ASA.
+ * Copyright (c) 2025 Raytac Corporation.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/init.h>
+#include <hal/nrf_power.h>
+
+void board_early_init_hook(void)
+{
+	/* if the raytac_mdbt50q_cx_40_dongle is powered from USB
+	 * (high voltage mode), GPIO output voltage is set to 1.8 volts by
+	 * default and that is not enough to turn the LEDs on.
+	 * Increase GPIO voltage to 3.0 volts.
+	 */
+	if ((nrf_power_mainregstatus_get(NRF_POWER) ==
+	     NRF_POWER_MAINREGSTATUS_HIGH) &&
+	    ((NRF_UICR->REGOUT0 & UICR_REGOUT0_VOUT_Msk) ==
+	     (UICR_REGOUT0_VOUT_DEFAULT << UICR_REGOUT0_VOUT_Pos))) {
+
+		NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
+		while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {
+			__NOP();
+		}
+
+		NRF_UICR->REGOUT0 =
+		    (NRF_UICR->REGOUT0 & ~((uint32_t)UICR_REGOUT0_VOUT_Msk)) |
+		    (UICR_REGOUT0_VOUT_3V0 << UICR_REGOUT0_VOUT_Pos);
+
+		NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
+		while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {
+			__NOP();
+		}
+
+		/* a reset is required for changes to take effect */
+		NVIC_SystemReset();
+	}
+}

boards/raytac/mdbt50q_cx_40_dongle/board.cmake

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+# Copyright (c) 2018-2023 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=nrf52840_xxaa" "--speed=4000")
+board_runner_args(pyocd "--target=nrf52840" "--frequency=4000000")
+include(${ZEPHYR_BASE}/boards/common/nrfutil.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)

boards/raytac/mdbt50q_cx_40_dongle/board.yml

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+board:
+  name: raytac_mdbt50q_cx_40_dongle
+  full_name: MDBT50Q-CX-40 Dongle
+  vendor: raytac
+  socs:
+  - name: nrf52840

boards/raytac/mdbt50q_cx_40_dongle/doc/index.rst

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+.. zephyr:board:: raytac_mdbt50q_cx_40_dongle
+
+Overview
+********
+
+The Raytac MDBT50Q-CX-40 Dongle hardware provides support for the Nordic
+Semiconductor nRF52840 ARM Cortex-M4F CPU and the following devices:
+
+- Nordic nRF52840 SoC Solution Dongle
+- A recommended 3rd-party module by Nordic Semiconductor.
+- BT5.4 & BT5.2 & BT5.1 & BT5 Bluetooth Specification Certified.
+- Type C USB
+- Supports Open Bootloader
+- Supports BT5 Long Range Feature
+- Deployed Raytac MDBT50Q-P1M Module
+- Certifications: FCC, IC, CE, UKCA, Telec (MIC), KC, SRRC, NCC, RCM, WPC
+- 32-bit ARM® Cortex™ M4F CPU
+- 1MB Flash Memory / 256kB RAM
+- RoHS & Reach Compliant.
+- Dimension：26.2 x 15.1 x 6.8 mm (excluding Type C USB Connector)
+- Highly flexible multiprotocol SoC ideally suited for Bluetooth® Low Energy,
+  ANT+, Zigbee, Thread (802.15.4) ultra low-power wireless applications.
+
+Hardware
+********
+
+The ``raytac_mdbt50q_cx_40_dongle/nrf52840`` board target has two external oscillators. The frequency of
+the slow clock is 32.768 kHz. The frequency of the main clock is 32 MHz.
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+Connections and IOs
+===================
+
+LED
+---
+
+* LED0 ( blue ) = P0.8
+* LED1 ( blue ) = P0.6 (No pasted components by default)
+
+Push buttons
+------------
+
+* BUTTON1 = SW1 = P1.6
+
+Programming and Debugging
+*************************
+
+.. zephyr:board-supported-runners::
+
+Applications for the ``raytac_mdbt50q_cx_40_dongle/nrf52840`` board target can be
+built in the usual way (see :ref:`build_an_application` for more details).
+
+Flashing
+========
+
+The board supports the following programming options:
+
+1. Using the built-in bootloader only
+2. Using MCUboot in serial recovery mode
+3. Using an external :ref:`debug probe <debug-probes>`
+
+These instructions use the :ref:`west <west>` tool and assume you are in the
+root directory of your :term:`west installation`.
+
+Option 1: Using the Built-In Bootloader Only
+--------------------------------------------
+
+The board is factory-programmed with Open bootloader from Nordic's nRF5
+SDK. With this option, you'll use Nordic's `nrfutil`_ program to create
+firmware packages supported by this bootloader and flash them to the
+device. Make sure ``nrfutil`` is installed before proceeding.
+
+#. Hold the button and plug it into the USB socket in the bootloader.
+
+   The push button is on the far side of the board from the USB connector. Note
+   that the button does not face up. You will have to push it from the outside
+   in, towards the USB connector:
+
+   .. image:: img/raytac_mdbt50q_cx_40_dongle_button_led.webp
+      :alt: Location of the user button and LED.
+
+   The red LED should start a fade pattern, signalling the bootloader is
+   running.
+
+#. Compile a Zephyr application; we'll use :zephyr:code-sample:`blinky`.
+
+   .. zephyr-app-commands::
+      :app: zephyr/samples/basic/blinky
+      :board: raytac_mdbt50q_cx_40_dongle/nrf52840
+      :goals: build
+
+#. Package the application for the bootloader using ``nrfutil``:
+
+   .. code-block:: console
+
+      nrfutil nrf5sdk-tools pkg generate \
+              --hw-version 52 \
+              --sd-req=0x00 \
+              --application build/zephyr/zephyr.hex \
+              --application-version 1 \
+              blinky.zip
+
+#. Flash it onto the board. Note :file:`/dev/ttyACM0` is for Linux; it will be
+   something like ``COMx`` on Windows, and something else on macOS.
+
+   .. code-block:: console
+
+      nrfutil nrf5sdk-tools dfu usb-serial -pkg blinky.zip -p /dev/ttyACM0
+
+   When this command exits, observe the green LED on the board blinking,
+   instead of the red LED used by the bootloader.
+
+For more information, see `Nordic Semiconductor USB DFU`_.
+
+Option 2: Using MCUboot in Serial Recovery Mode
+-----------------------------------------------
+
+It is also possible to use the MCUboot bootloader with this board to flash
+Zephyr applications. You need to do some one-time set-up to build and flash
+MCUboot on your board. From that point on, you can build and flash other Zephyr
+applications using MCUboot's serial recovery mode. This process does not
+overwrite the built-in Nordic bootloader, so you can always go back to using
+Option 1 later.
+
+Install `nrfutil`_ and `mcumgr`_ first, and make sure MCUboot's ``imgtool`` is
+available for signing your binary for MCUboot as described on :ref:`west-sign`.
+
+Next, do the **one-time setup** to flash MCUboot. We'll assume you've cloned
+the `MCUboot`_ repository into the directory ``mcuboot``, and that it is next
+to the zephyr repository on your computer.
+
+#. Reset the board into the Nordic bootloader as described above.
+
+#. Compile MCUboot as a Zephyr application.
+
+   .. zephyr-app-commands::
+      :app: mcuboot/boot/zephyr
+      :board: raytac_mdbt50q_cx_40_dongle/nrf52840
+      :build-dir: mcuboot
+      :goals: build
+
+#. Package the application for the bootloader using ``nrfutil``:
+
+   .. code-block:: console
+
+      nrfutil nrf5sdk-tools pkg generate \
+              --hw-version 52 \
+			  --sd-req=0x00 \
+              --application build/mcuboot/zephyr/zephyr.hex \
+              --application-version 1 \
+			  mcuboot.zip
+
+#. Flash it onto the board. Note :file:`/dev/ttyACM0` is for Linux; it will be
+   something like ``COMx`` on Windows, and something else on macOS.
+
+   .. code-block:: console
+
+      nrfutil nrf5sdk-tools dfu usb-serial -pkg mcuboot.zip -p /dev/ttyACM0
+
+You can now flash a Zephyr application to the board using MCUboot's serial
+recovery mode. We'll use the :zephyr:code-sample:`smp-svr` sample since it's ready to be
+compiled for chain-loading by MCUboot (and itself supports firmware updates
+over Bluetooth).
+
+#. Boot into MCUboot serial recovery mode by plugging the board in with the SW1
+   button pressed down. See above for a picture showing where SW1 is.
+
+   A serial port will enumerate on your board. On Windows, "MCUBOOT" should
+   appear under "Other Devices" in the Device Manager (in addition to the usual
+   ``COMx`` device). On Linux, something like
+   :file:`/dev/serial/by-id/usb-ZEPHYR_MCUBOOT_0.01-if00` should be created.
+
+   If no serial port appears, try plugging it in again, making sure SW1 is
+   pressed. If it still doesn't appear, retry the one-time MCUboot setup.
+
+#. Compile ``smp_svr``.
+
+   .. zephyr-app-commands::
+      :app: zephyr/samples/subsys/mgmt/mcumgr/smp_svr
+      :board: raytac_mdbt50q_cx_40_dongle/nrf52840
+      :build-dir: smp_svr
+      :goals: build
+
+#. Sign ``smp_svr`` for chain-loading by MCUboot.
+
+   .. code-block:: console
+
+      west sign -t imgtool --bin --no-hex -d build/smp_svr \
+                -B smp_svr.signed.bin -- --key mcuboot/root-rsa-2048.pem
+
+#. Flash the application to the MCUboot serial port using ``mcumgr``:
+
+   .. code-block:: console
+
+      mcumgr --conntype=serial --connstring='dev=/dev/ttyACM0,baud=115200' \
+             image upload -e smp_svr.signed.bin
+
+#. Reset the device:
+
+   .. code-block:: console
+
+      mcumgr --conntype=serial --connstring='dev=/dev/ttyACM0,baud=115200' reset
+
+You should now be able to scan for Bluetooth devices using a smartphone or
+computer. The device you just flashed will be listed with ``Zephyr`` in its
+name.
+
+.. note::
+
+   This board supports building other Zephyr applications for flashing with
+   MCUboot in this way also. Just make sure :kconfig:option:`CONFIG_BOOTLOADER_MCUBOOT`
+   is set when building your application. For example, to compile blinky for
+   loading by MCUboot, use this:
+
+   .. zephyr-app-commands::
+      :app: zephyr/samples/basic/blinky
+      :board: raytac_mdbt50q_cx_40_dongle/nrf52840
+      :build-dir: blinky
+      :goals: build
+      :gen-args: -DCONFIG_BOOTLOADER_MCUBOOT=y
+
+   You can then sign and flash it using the steps above.
+
+Option 3: Using an External Debug Probe
+---------------------------------------
+
+If you have one, you can also use an external :ref:`debug probe <debug-probes>`
+to flash and debug Zephyr applications, but you need to solder an SWD header
+onto the back side of the board.
+
+For Segger J-Link debug probes, 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`.
+
+Locate the DTS file: :``boards/raytac/raytac_mdbt50q_cx_40_dongle_nrf52840.dts``.
+This file requires a small modification to use a different partition table.
+Edit the include directive to include "fstab-debugger" instead of "fstab-stock".
+
+In addition, the Kconfig file in the same directory must be modified by setting
+``BOARD_HAS_NRF5_BOOTLOADER`` to be default ``n``, otherwise the code will be
+flashed with an offset.
+
+Then build and flash applications as usual (see :ref:`build_an_application` and
+:ref:`application_run` for more details).
+
+Here is an example for the :zephyr:code-sample:`blinky` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: raytac_mdbt50q_cx_40_dongle/nrf52840
+   :goals: build flash
+
+Observe the LED on the board blinking.
+
+Debugging
+=========
+
+The ``raytac_mdbt50q_cx_40_dongle/nrf52840`` board does not have an on-board J-Link debug IC
+as some nRF5x development boards, however, instructions from the
+:ref:`nordic_segger` page also apply to this board, with the additional step
+of connecting an external debugger.
+
+Testing the LEDs and buttons on the Raytac MDBT50Q-CX-40 Dongle
+***************************************************************
+
+There are 2 samples that allow you to test that the buttons (switches) and LEDs on
+the board are working properly with Zephyr:
+
+* :zephyr:code-sample:`blinky`
+* :zephyr:code-sample:`button`
+
+You can build and program the examples to make sure Zephyr is running correctly
+on your board.
+
+
+References
+**********
+
+.. target-notes::
+
+.. _Raytac MDBT50Q-CX-40 Dongle website:
+   https://www.raytac.com/product/ins.php?index_id=156
+.. _Raytac MDBT50Q-CX-40 Dongle Spec: https://www.raytac.com/download/index.php?index_id=72
+.. _Raytac MDBT50Q-CX-40 Dongle Hardware description: https://www.raytac.com/product/ins.php?index_id=156
+.. _Nordic Semiconductor USB DFU:
+   https://docs.nordicsemi.com/bundle/sdk_nrf5_v17.1.0/page/sdk_app_serial_dfu_bootloader.html
+.. _nrfutil:
+   https://www.nordicsemi.com/Products/Development-tools/nrf-util
+.. _MCUboot:
+   https://github.com/JuulLabs-OSS/mcuboot
+.. _mcumgr:
+   https://github.com/apache/mynewt-mcumgr-cli

boards/raytac/mdbt50q_cx_40_dongle/fstab-debugger.dtsi

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Flash partition table without support for Nordic nRF5 bootloader */
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* The size of this partition ensures that MCUBoot can be built
+		 * with an RTT console, CDC ACM support, and w/o optimizations.
+		 */
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x00012000>;
+		};
+
+		slot0_partition: partition@12000 {
+			label = "image-0";
+			reg = <0x00012000 0x00075000>;
+		};
+
+		slot1_partition: partition@87000 {
+			label = "image-1";
+			reg = <0x00087000 0x00075000>;
+		};
+
+		storage_partition: partition@fc000 {
+			label = "storage";
+			reg = <0x000fc000 0x00004000>;
+		};
+	};
+};

boards/raytac/mdbt50q_cx_40_dongle/fstab-stock.dtsi

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2018-2023 Nordic Semiconductor ASA
+ * Copyright (c) 2025 Raytac Corporation.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Flash partition table compatible with Nordic nRF5 bootloader */
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* MCUboot placed after Nordic MBR (this is set with the FLASH_LOAD_OFFSET
+		 * Kconfig value when BOARD_HAS_NRF5_BOOTLOADER is enabled), otherwise MCUboot
+		 * will be placed at 0x0. The size of this partition ensures that MCUBoot can
+		 * be built with CDC ACM support and w/o optimizations.
+		 */
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x00010000>;
+		};
+
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x00010000 0x00066000>;
+		};
+
+		slot1_partition: partition@76000 {
+			label = "image-1";
+			reg = <0x00076000 0x00066000>;
+		};
+
+		storage_partition: partition@dc000 {
+			label = "storage";
+			reg = <0x000f0000 0x00004000>;
+		};
+
+		/* Nordic nRF5 bootloader <0xf4000 0xa000>
+		 *
+		 * In addition, the last and second last flash pages
+		 * are used by the nRF5 bootloader and MBR to store settings.
+		 */
+	};
+};

boards/raytac/mdbt50q_cx_40_dongle/pre_dt_board.cmake

@@ -0,0 +1,7 @@
+# Copyright (c) 2022 Nordic Semiconductor
+# SPDX-License-Identifier: Apache-2.0
+
+# Suppress "unique_unit_address_if_enabled" to handle the following overlaps:
+# - power@40000000 & clock@40000000 & bprot@40000000
+# - acl@4001e000 & flash-controller@4001e000
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")

boards/raytac/mdbt50q_cx_40_dongle/raytac_mdbt50q_cx_40_dongle_nrf52840-pinctrl.dtsi

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2018-2023 Nordic Semiconductor ASA
+ * Copyright (c) 2025 Raytac Corporation.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 20)>,
+				<NRF_PSEL(UART_RTS, 0, 17)>;
+		};
+
+		group2 {
+			psels = <NRF_PSEL(UART_RX, 0, 24)>,
+				<NRF_PSEL(UART_CTS, 0, 22)>;
+			bias-pull-up;
+		};
+	};
+
+	uart0_sleep: uart0_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 20)>,
+				<NRF_PSEL(UART_RX, 0, 24)>,
+				<NRF_PSEL(UART_RTS, 0, 17)>,
+				<NRF_PSEL(UART_CTS, 0, 22)>;
+			low-power-enable;
+		};
+	};
+
+	pwm0_default: pwm0_default {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 0, 6)>,
+				<NRF_PSEL(PWM_OUT1, 0, 8)>;
+			nordic,invert;
+		};
+	};
+
+	pwm0_sleep: pwm0_sleep {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 0, 6)>,
+				<NRF_PSEL(PWM_OUT1, 0, 8)>;
+			low-power-enable;
+		};
+	};
+};

boards/raytac/mdbt50q_cx_40_dongle/raytac_mdbt50q_cx_40_dongle_nrf52840.dts

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2018-2023 Nordic Semiconductor ASA
+ * Copyright (c) 2017 Linaro Limited
+ * Copyright (c) 2025 Raytac Corporation.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+#include "raytac_mdbt50q_cx_40_dongle_nrf52840-pinctrl.dtsi"
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+/ {
+	model = "raytac_mdbt50q_cx_40_dongle_nrf52840";
+	compatible = "raytac,raytac-mdbt50q-cx-40-dongle-nrf52840";
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,ieee802154 = &ieee802154;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0_d1: led_0 {
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+			label = "LED D1";
+		};
+
+		led1_d2: led_1 {
+			gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+			label = "LED D2";
+		};
+	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+
+		d1_pwm_led: pwm_led_0 {
+			pwms = <&pwm0 0 PWM_MSEC(20) PWM_POLARITY_INVERTED>;
+		};
+
+		d2_pwm_led: pwm_led_1 {
+			pwms = <&pwm0 1 PWM_MSEC(20) PWM_POLARITY_INVERTED>;
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+
+		button0: button_0 {
+			gpios = <&gpio1 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 0";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+	/* These aliases are provided for compatibility with samples */
+	aliases {
+		sw0 = &button0;
+		led0 = &led0_d1;
+		led1 = &led1_d2;
+		led0-green = &led0_d1;
+		led1-red   = &led1_d2;
+		pwm-led0 = &d1_pwm_led;
+		pwm-led1 = &d2_pwm_led;
+		red-pwm-led = &d2_pwm_led;
+		green-pwm-led = &d1_pwm_led;
+		mcuboot-button0 = &button0;
+		mcuboot-led0 = &led0_d1;
+		watchdog0 = &wdt0;
+	};
+};
+
+&reg0 {
+	status = "disabled";
+};
+
+&reg1 {
+	regulator-initial-mode = <0>;
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&uicr {
+	nfct-pins-as-gpios;
+	gpio-as-nreset;
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uarte";
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-1 = <&uart0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&pwm0 {
+	status = "okay";
+	pinctrl-0 = <&pwm0_default>;
+	pinctrl-1 = <&pwm0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&ieee802154 {
+	status = "okay";
+};
+
+/* Include flash partition table.
+ * Two partition tables are available:
+ * fstab-stock		-compatible with Nordic nRF5 bootloader, default
+ * fstab-debugger	-to use an external debugger, w/o the nRF5 bootloader
+ */
+#include "fstab-stock.dtsi"
+
+zephyr_udc0: &usbd {
+	compatible = "nordic,nrf-usbd";
+	status = "okay";
+};
+
+#include <../boards/common/usb/cdc_acm_serial.dtsi>

boards/raytac/mdbt50q_cx_40_dongle/raytac_mdbt50q_cx_40_dongle_nrf52840.yaml

@@ -0,0 +1,23 @@
+# Copyright (c) 2018-2023 Nordic Semiconductor ASA
+# Copyright (c) 2025 Raytac Corporation.
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: raytac_mdbt50q_cx_40_dongle/nrf52840
+name: Raytac MDBT50Q-CX-40 Dongle
+type: mcu
+arch: arm
+ram: 256
+flash: 1024
+toolchain:
+  - zephyr
+  - gnuarmemb
+supported:
+  - usb_device
+  - usb_cdc
+  - ble
+  - pwm
+  - watchdog
+  - counter
+  - netif:openthread
+  - gpio
+vendor: raytac

boards/raytac/mdbt50q_cx_40_dongle/raytac_mdbt50q_cx_40_dongle_nrf52840_defconfig

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: Apache-2.0
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable hardware stack protection
+CONFIG_HW_STACK_PROTECTION=y
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Board Kconfig.defconfig enables USB CDC ACM and should disable USB remote
+# wakeup by default. It needs to be disabled here, because the USB nrfx
+# driver always overwrites option from Kconfig mentioned above with the
+# imply from CONFIG_USB_NRFX.
+CONFIG_USB_DEVICE_REMOTE_WAKEUP=n