boards: renesas: add support for Renesas RA MCK-RA4T1

boards/renesas/mck_ra4t1/Kconfig.mck_ra4t1

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+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_MCK_RA4T1
+	select SOC_R7FA4T1BB3CFM

boards/renesas/mck_ra4t1/board.cmake

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+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=R7FA4T1BB")
+board_runner_args(pyocd "--target=R7FA4T1BB")
+
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)

boards/renesas/mck_ra4t1/board.yml

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+board:
+  name: mck_ra4t1
+  full_name: RA4T1 Motor Control Kit
+  vendor: renesas
+  socs:
+  - name: r7fa4t1bb3cfm

boards/renesas/mck_ra4t1/doc/index.rst

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+.. zephyr:board:: mck_ra4t1
+
+Overview
+********
+
+The MCK-RA4T1 is an Motor Control Kit for Renesas RA4T1 MCU Group which integrates multiple series of software and
+pin-compatible Arm®-based 32-bit cores that share a common set of Renesas peripherals to facilitate design scalability
+and efficient platform-based product development.
+
+The MCU in this series incorporates a high-performance Arm Cortex®-M33 core running up to 100 MHz with the following
+features:
+
+- Up to 256 KB code flash memory
+- 40 KB SRAM
+- Analog peripherals
+- Security and safety features
+
+MCK-RA4T1 kit includes the items below:
+
+- RA4T1 CPU board (`MCB-RA4T1`_)
+- Inverter board (`MCI-LV-1`_)
+- Brushless DC Motor
+- Accessories (cables, standoffs, etc.)
+
+The specifications of the CPU board are shown below:
+
+**MCU specifications**
+
+- 100 MHz Arm® Cortex®-M33 core based RA4T1 MCU 64 pins, LFQFP package
+- ROM/SRAM size: 256KB/40KB
+- MCU input clock: 10MHz (Generate with external crystal oscillator)
+- Power supply: DC 5V, select one way automatically from the below:
+
+  - Power is supplied from compatible inverter board
+  - Power is supplied from USB connector
+
+**Connector**
+
+- Inverter board connector
+- USB connector for J-Link OB
+- SCI connector for Renesas Motor Workbench communication
+- Through hole for CAN communication
+- 10 pin through hole for Arm debugger
+- PMOD connectors
+- MCU reset switch
+- User-controllable LED x2, Power LED x1
+
+**Onboard debugger**
+
+This product has the onboard debugger circuit, J-Link On-Board (hereinafter called “J-Link-OB”). When you write a program,
+connect the CPU board to PC with USB cable. J-Link-OB operates as debugger equivalent to J-Link. If connecting from flash
+programing tool (e.g. J-Flash Lite by SEGGER), set the type of debugger (tool) to “JLink”
+
+Hardware
+********
+Detailed Hardware features for the RA4T1 MCU group can be found at:
+- The RA4T1 MCU group: `RA4T1 Group User's Manual Hardware`_
+- The MCB-RA4T1 board: `MCB-RA4T1 - User's Manual`_
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+Programming and Debugging
+*************************
+
+.. zephyr:board-supported-runners::
+
+Applications for the ``mck_ra4t1`` board 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.
+
+Configuring the Debug Probe
+===========================
+
+The MCK-RA4T1 board includes an on-board SEGGER J-Link debugger.
+SEGGER J-Link drivers are available at https://www.segger.com/downloads/jlink
+
+To use the on-board J-Link debugger, ensure that:
+
+1. The J-Link OB is connected to the host PC via the USB port (CN9).
+
+2. The J-Link OB jumper is in the default configuration as described in the `MCB-RA4T1 - User's Manual`_.
+
+Configuring a Console
+=====================
+
+Connect a USB cable from your PC to the on-board virtual COM port (CN9), and use a
+serial terminal of your choice (minicom, PuTTY, etc.) with the following settings:
+
+- Speed: 115200
+- Data: 8 bits
+- Parity: None
+- Stop bits: 1
+
+Flashing
+========
+
+Here is an example for the :zephyr:code-sample:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: mck_ra4t1
+   :goals: flash
+
+Open a serial terminal, reset the board (push the reset switch S1), and you should
+see the following message in the terminal:
+
+.. code-block:: console
+
+   ***** Booting Zephyr OS v4.3.0-xxx-xxxxxxxxxxxxx *****
+   Hello World! mck_ra4t1
+
+Debugging
+=========
+
+Here is an example for the :zephyr:code-sample:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: mck_ra4t1
+   :goals: debug
+
+Open a serial terminal, step through the application in your debugger, and you
+should see the following message in the terminal:
+
+References
+**********
+- `MCK-RA4T1 Website`_
+- `RA4T1 MCU group Website`_
+
+.. _MCK-RA4T1 Website:
+   https://www.renesas.com/en/design-resources/boards-kits/mck-ra4t1
+
+.. _RA4T1 MCU group Website:
+   https://www.renesas.com/en/products/ra4t1
+
+.. _MCB-RA4T1 - User's Manual:
+   https://www.renesas.com/en/document/mat/mcb-ra4t1-users-manual
+
+.. _RA4T1 Group User's Manual Hardware:
+   https://www.renesas.com/en/document/mah/ra4t1-group-users-manual-hardware
+
+.. _MCB-RA4T1:
+   https://www.renesas.com/en/design-resources/boards-kits/mcb-ra4t1
+
+.. _MCI-LV-1:
+   https://www.renesas.com/en/design-resources/boards-kits/mci-lv-1

boards/renesas/mck_ra4t1/mck_ra4t1-pinctrl.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	sci9_default: sci9_default {
+		group1 {
+			/* TXD9 RXD9 */
+			psels = <RA_PSEL(RA_PSEL_SCI_9, 1, 9)>,
+				<RA_PSEL(RA_PSEL_SCI_9, 1, 10)>;
+			drive-strength = "high";
+		};
+	};
+
+	spi0_default: spi0_default {
+		group1 {
+			/* MISOA MOSIA RSPCKA SSLA0 */
+			psels = <RA_PSEL(RA_PSEL_SPI, 2, 6)>,
+				<RA_PSEL(RA_PSEL_SPI, 2, 7)>,
+				<RA_PSEL(RA_PSEL_SPI, 3, 2)>,
+				<RA_PSEL(RA_PSEL_SPI, 3, 1)>;
+			drive-strength = "high";
+		};
+	};
+};

boards/renesas/mck_ra4t1/mck_ra4t1.dts

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <renesas/ra/ra4/r7fa4t1bb3cfm.dtsi>
+#include <dt-bindings/gpio/gpio.h>
+#include "mck_ra4t1-pinctrl.dtsi"
+
+/ {
+	model = "Renesas MCK-RA4T1";
+	compatible = "renesas,ra4t1", "renesas,ra";
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,console = &uart9;
+		zephyr,shell-uart = &uart9;
+		zephyr,entropy = &trng;
+		zephyr,flash-controller = &flash0;
+		zephyr,crc = &crc;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led1: led1 {
+			gpios = <&ioport1 13 GPIO_ACTIVE_LOW>;
+			label = "LED1";
+		};
+
+		led2: led2 {
+			gpios = <&ioport1 6 GPIO_ACTIVE_LOW>;
+			label = "LED2";
+		};
+	};
+
+	aliases {
+		led0 = &led1;
+		watchdog0 = &wdt;
+	};
+};
+
+&xtal {
+	clock-frequency = <DT_FREQ_M(10)>;
+	status = "okay";
+};
+
+&pll {
+	status = "okay";
+};
+
+&ioport1 {
+	status = "okay";
+};
+
+&sci9 {
+	pinctrl-0 = <&sci9_default>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	uart9: uart {
+		current-speed = <115200>;
+		status = "okay";
+	};
+};
+
+&spi0 {
+	pinctrl-0 = <&spi0_default>;
+	pinctrl-names = "default";
+};
+
+&wdt {
+	status = "okay";
+};
+
+&crc {
+	status = "okay";
+};
+
+&trng {
+	status = "okay";
+};
+
+pmod_spi: &spi0 {};

boards/renesas/mck_ra4t1/mck_ra4t1.yaml

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+identifier: mck_ra4t1
+name: Renesas MCK-RA4T1
+type: mcu
+arch: arm
+ram: 40
+flash: 256
+toolchain:
+  - zephyr
+supported:
+  - gpio
+  - uart
+vendor: renesas

boards/renesas/mck_ra4t1/mck_ra4t1_defconfig

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+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Enable Console
+CONFIG_SERIAL=y
+CONFIG_UART_CONSOLE=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_CONSOLE=y

dts/arm/renesas/ra/ra4/r7fa4t1b93cfj.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_32.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1x9.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1b93cfl.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_48.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1x9.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1b93cfm.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_64.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1x9.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1b93cne.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_48.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1x9.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1b93cnh.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_32.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1x9.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1bb3cfj.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_32.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1xb.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1bb3cfl.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_48.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1xb.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1bb3cfm.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_64.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1xb.dtsi>

dts/arm/renesas/ra/ra4/r7fa4t1bb3cne.dtsi

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+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <arm/renesas/ra/ra4/r7fa4t1bx_48.dtsi>
+#include <arm/renesas/ra/ra4/r7fa4t1xb.dtsi>