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boards: arm: Add initial support for EKRA2A1
Add support for the EK-RA2A1 board. Signed-off-by: TOKITA Hiroshi <[email protected]>
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‎boards/renesas/ek_ra2a1/Kconfig.ek_ra2a1‎

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# Copyright (c) 2024 TOKITA Hiroshi
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_EK_RA2A1
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select SOC_R7FA2A1AB3CFM

‎boards/renesas/ek_ra2a1/board.cmake‎

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# Copyright (c) 2024 TOKITA Hiroshi
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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(jlink "--device=R7FA2A1AB")
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board_runner_args(pyocd "--target=r7fa2a1ab")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)

‎boards/renesas/ek_ra2a1/board.yml‎

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board:
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name: ek_ra2a1
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vendor: renesas
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socs:
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- name: r7fa2a1ab3cfm

‎boards/renesas/ek_ra2a1/doc/index.rst‎

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.. _ek_ra2a1:
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RA2A1 Evaluation Kit
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####################
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Overview
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********
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The EK-RA2A1 is an evaluation kit for Renesas RA2A1 Microcontroller Group.
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Renesas RA2A1 Microcontroller Group has following features
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- 48MHz, Arm Cortex-M23 core
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- 256kB Code Flash, 8kB Data Flash, 32kB SRAM
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- USB 2.0 Full-Sppeed
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- SCI x 3
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- SPI x 2
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- I2C x 2
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- CAN x 1
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- 16-bit A/D Converter
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- 24-bit Sigma-Delta A/D Converter
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- 12-bit D/A Converter
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- 8-bit D/A Converter x 2
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- High-Speed Analog Comparator
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- Low-Power Analog Comparator
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- OPAMP x 3
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- Temperature Sensor
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- General PWM Timer 32-bit x 1
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- General PWM Timer 16-bit x 6
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- Low Power Asynchronous General-Purpose Timer x 2
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- Watchdog Timer
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- 49 Input/Output pins
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Hardware
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********
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EK-RA2A1 has following features.
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- Native pin access through 4x 40-pin male headers
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- MCU current measurement points
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- SEGGER J-Link on-board programmer and debugger
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- Two Digilent Pmod (SPI and UART)
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- User LED
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- Mechanical user button
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- Capacitive user button
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Supported Features
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==================
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The Renesas EK-RA2A1 board configuration supports the following
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hardware features:
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+-----------+------------+-------------------------------+
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| Interface | Controller | Driver/components |
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+===========+============+===============================+
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| PINCTRL | on-chip | pinctrl |
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+-----------+------------+-------------------------------+
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| CLOCK | on-chip | clock_control |
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+-----------+------------+-------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------+
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| UART | on-chip | uart |
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+-----------+------------+-------------------------------+
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The default configuration can be found in
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:zephyr_file:`boards/renesas/ek_ra2a1/ek_ra2a1_defconfig`
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Programming and debugging
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*************************
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Building & Flashing
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===================
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You can build and flash an application with onboard J-Link debug adapter.
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:ref:`build_an_application` and
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:ref:`application_run` for more details).
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Here is an example for building and flashing the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: ek_ra2a1
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:goals: build flash
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Debugging
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=========
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Debugging also can be done with onboard J-Link debug adapter.
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The following command is debugging the :zephyr:code-sample:`blinky` application.
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Also, see the instructions specific to the debug server that you use.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: ek_ra2a1
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:maybe-skip-config:
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:goals: debug
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References
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**********
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.. EK-RA2A1 Web site:
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https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ek-ra2a1-evaluation-kit-ra2a1-mcu-group

‎boards/renesas/ek_ra2a1/ek_ra2a1-pinctrl.dtsi‎

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/*
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* Copyright (c) 2024 TOKITA Hiroshi
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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&pinctrl {
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sci0_default: sci0_default {
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group1 {
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/* rx */
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psels = <RA_PSEL(RA_PSEL_SCI_0, 3, 1)>;
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};
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group2 {
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/* tx */
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psels = <RA_PSEL(RA_PSEL_SCI_0, 3, 2)>;
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drive-strength = "medium";
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};
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};
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};

‎boards/renesas/ek_ra2a1/ek_ra2a1.dts‎

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/*
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* Copyright (c) 2024 TOKITA Hiroshi
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <renesas/ra/ra2/r7fa2a1ab3cfm.dtsi>
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#include <zephyr/dt-bindings/gpio/gpio.h>
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#include "ek_ra2a1-pinctrl.dtsi"
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/ {
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model = "Renesas EK-RA2A1";
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compatible = "renesas,ra2a1", "renesas,ra2";
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chosen {
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,console = &uart0;
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zephyr,shell-uart = &uart0;
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};
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leds {
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compatible = "gpio-leds";
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led1: led1 {
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gpios = <&ioport2 5 GPIO_ACTIVE_HIGH>;
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label = "LED1";
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};
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};
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aliases {
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led0 = &led1;
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};
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};
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&xtal {
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clock-frequency = <DT_FREQ_M(12)>;
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mosel = <0>;
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#clock-cells = <0>;
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status = "okay";
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};
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&subclk {
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status = "okay";
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};
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&ioport2 {
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status = "okay";
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};
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&sci0 {
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pinctrl-0 = <&sci0_default>;
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pinctrl-names = "default";
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status = "okay";
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uart0: uart {
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current-speed = <115200>;
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status = "okay";
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};
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};

‎boards/renesas/ek_ra2a1/ek_ra2a1.yaml‎

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identifier: ek_ra2a1
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name: Renesas EK-RA2A1
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type: mcu
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arch: arm
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ram: 32
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flash: 256
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toolchain:
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- zephyr
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- gnuarmemb
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supported:
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- gpio
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- uart

‎boards/renesas/ek_ra2a1/ek_ra2a1_defconfig‎

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# Copyright (c) 2024 TOKITA Hiroshi
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=48000000
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# Enable GPIO
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CONFIG_GPIO=y
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CONFIG_PINCTRL=y
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# Enable Console
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CONFIG_SERIAL=y
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CONFIG_UART_CONSOLE=y
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CONFIG_UART_INTERRUPT_DRIVEN=y
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CONFIG_CONSOLE=y
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CONFIG_BUILD_OUTPUT_HEX=y
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CONFIG_BUILD_NO_GAP_FILL=y
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CONFIG_CLOCK_CONTROL=y

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