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boards: arduino: Add support for the Arduino Nano Matter
Add device tree and support files for the Nano Matter board based on the Silicon Labs MGM240SD22VNA chip. Signed-off-by: Tamas Jozsi <[email protected]>
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‎boards/arduino/nano_matter/Kconfig.arduino_nano_matter‎

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# Copyright (c) 2020 Piotr Mienkowski
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# Copyright (c) 2020 TriaGnoSys GmbH
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# Copyright (c) 2025 Pete Johanson
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# Copyright (c) 2025 Silicon Laboratories Inc.
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_ARDUINO_NANO_MATTER
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select SOC_PART_NUMBER_MGM240SD22VNA

‎boards/arduino/nano_matter/Kconfig.defconfig‎

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# Copyright (c) 2020 Piotr Mienkowski
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# Copyright (c) 2020 TriaGnoSys GmbH
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# Copyright (c) 2025 Pete Johanson
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# Copyright (c) 2025 Silicon Laboratories Inc.
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_ARDUINO_NANO_MATTER
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config LOG_BACKEND_SWO_FREQ_HZ
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default 875000
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depends on LOG_BACKEND_SWO
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if SOC_GECKO_USE_RAIL
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config FPU
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default y
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endif # SOC_GECKO_USE_RAIL
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if BT
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config FPU
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default y
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config COMMON_LIBC_MALLOC_ARENA_SIZE
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default 8192
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config MAIN_STACK_SIZE
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default 3072 if PM
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default 2304
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endif # BT
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endif # BOARD_ARDUINO_NANO_MATTER

‎boards/arduino/nano_matter/arduino_nano_matter-pinctrl.dtsi‎

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/*
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* Copyright (c) 2025 Pete Johanson
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* Copyright (c) 2025 Silicon Laboratories Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <dt-bindings/pinctrl/silabs/xg24-pinctrl.h>
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&pinctrl {
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eusart0_default: eusart0_default {
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group0 {
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pins = <EUSART0_TX_PA4>;
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drive-push-pull;
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output-high;
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};
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group1 {
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pins = <EUSART0_RX_PA5>;
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input-enable;
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silabs,input-filter;
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};
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};
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eusart1_default: eusart1_default {
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group0 {
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pins = <EUSART1_TX_PA9>, <EUSART1_SCLK_PB4>;
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drive-push-pull;
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output-high;
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};
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group1 {
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pins = <EUSART1_RX_PA8>;
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input-enable;
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silabs,input-filter;
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};
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};
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i2c0_default: i2c0_default {
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group0 {
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pins = <I2C0_SCL_PA7>, <I2C0_SDA_PA6>;
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drive-open-drain;
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bias-pull-up;
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};
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};
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usart0_default: usart0_default {
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group0 {
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pins = <USART0_TX_PC4>;
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drive-push-pull;
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output-high;
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};
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group1 {
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pins = <USART0_RX_PC5>;
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input-enable;
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silabs,input-filter;
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};
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};
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};

‎boards/arduino/nano_matter/arduino_nano_matter.dts‎

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/*
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* Copyright (c) 2025 Pete Johanson
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* Copyright (c) 2025 Silicon Laboratories Inc.
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*
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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 <silabs/xg24/mgm240sd22vna.dtsi>
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#include <zephyr/dt-bindings/input/input-event-codes.h>
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#include "arduino_nano_matter-pinctrl.dtsi"
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#include "arduino_nano_matter_connector.dtsi"
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/ {
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model = "Arduino Nano Matter";
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compatible = "arduino,arduino_nano_matter", "silabs,mgm240sd22vna";
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chosen {
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zephyr,bt-hci = &bt_hci_silabs;
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zephyr,code-partition = &slot0_partition;
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zephyr,console = &usart0;
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zephyr,flash = &flash0;
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zephyr,shell-uart = &usart0;
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zephyr,sram = &sram0;
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zephyr,uart-pipe = &usart0;
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};
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/* These aliases are provided for compatibility with samples */
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aliases {
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led0 = &led0;
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led1 = &led1;
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led2 = &led2;
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sw0 = &button0;
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watchdog0 = &wdog0;
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};
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leds {
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compatible = "gpio-leds";
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led0: led_0 {
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gpios = <&gpioc 1 GPIO_ACTIVE_LOW>;
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label = "LED 0";
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};
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led1: led_1 {
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gpios = <&gpioc 2 GPIO_ACTIVE_LOW>;
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label = "LED 1";
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};
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led2: led_2 {
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gpios = <&gpioc 3 GPIO_ACTIVE_LOW>;
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label = "LED 2";
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};
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};
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buttons {
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compatible = "gpio-keys";
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button0: button_0 {
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gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
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zephyr,code = <INPUT_KEY_0>;
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};
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};
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};
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&cpu0 {
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clock-frequency = <78000000>;
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};
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&pstate_em3 {
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status = "disabled";
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};
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&hfxo {
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ctune = <95>;
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precision = <50>;
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status = "okay";
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};
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&lfxo {
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ctune = <44>;
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precision = <50>;
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status = "okay";
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};
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&hfrcodpll {
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clock-frequency = <DT_FREQ_M(78)>;
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clocks = <&hfxo>;
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dpll-autorecover;
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dpll-edge = "fall";
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dpll-lock = "phase";
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dpll-m = <1919>;
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dpll-n = <3839>;
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};
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&em23grpaclk {
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clocks = <&lfxo>;
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};
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&em4grpaclk {
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clocks = <&lfxo>;
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};
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&sysrtcclk {
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clocks = <&lfxo>;
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};
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&wdog0clk {
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clocks = <&lfxo>;
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};
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&wdog1clk {
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clocks = <&lfxo>;
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};
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&usart0 {
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current-speed = <115200>;
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pinctrl-0 = <&usart0_default>;
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pinctrl-names = "default";
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status = "okay";
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};
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&eusart0 {
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compatible = "silabs,eusart-uart";
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current-speed = <115200>;
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pinctrl-0 = <&eusart0_default>;
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pinctrl-names = "default";
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};
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&eusart1 {
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compatible = "silabs,eusart-spi";
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#address-cells = <1>;
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#size-cells = <0>;
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clock-frequency = <4000000>;
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cs-gpios = <&gpioc 7 GPIO_ACTIVE_LOW>;
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pinctrl-0 = <&eusart1_default>;
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pinctrl-names = "default";
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};
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&i2c0 {
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pinctrl-0 = <&i2c0_default>;
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pinctrl-names = "default";
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};
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&gpio {
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location-swo = <0>;
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status = "okay";
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};
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&gpioa {
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status = "okay";
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};
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&gpiob {
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status = "okay";
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};
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&gpioc {
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status = "okay";
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};
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&gpiod {
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status = "okay";
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};
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&wdog0 {
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status = "okay";
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};
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&sysrtc0 {
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status = "okay";
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};
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&se {
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status = "okay";
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};
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&flash0 {
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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/* Reserve 48 kB for the bootloader */
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boot_partition: partition@0 {
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reg = <0x0 DT_SIZE_K(48)>;
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label = "mcuboot";
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read-only;
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};
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/* Reserve 736 kB for the application in slot 0 */
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slot0_partition: partition@c000 {
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reg = <0x0000c000 0x000B8000>;
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label = "image-0";
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};
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/* Reserve 736 kB for the application in slot 1 */
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slot1_partition: partition@C4000 {
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reg = <0x000C4000 0x000B8000>;
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label = "image-1";
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};
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/* Set 16 kB of storage at the end of the 1536 kB of flash */
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storage_partition: partition@17c000 {
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reg = <0x0017c000 DT_SIZE_K(16)>;
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label = "storage";
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};
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};
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};
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&bt_hci_silabs {
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status = "okay";
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};

‎boards/arduino/nano_matter/arduino_nano_matter.yaml‎

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identifier: arduino_nano_matter
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name: Arduino Nano Matter
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type: mcu
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arch: arm
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ram: 256
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flash: 1536
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toolchain:
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- zephyr
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- gnuarmemb
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supported:
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- bluetooth
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- gpio
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- uart
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- dma
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- watchdog
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- comparator
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testing:
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ignore_tags:
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- pm
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vendor: arduino

‎boards/arduino/nano_matter/arduino_nano_matter_connector.dtsi‎

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/*
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* Copyright (c) 2025 Peter Johanson
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* Copyright (c) 2025 Silicon Laboratories Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/ {
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arduino_nano_matter_d: connector {
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compatible = "arduino,arduino_nano_matter-gpio";
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#gpio-cells = <2>;
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gpio-map-mask = <0xffffffff 0xffffffc0>;
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gpio-map-pass-thru = <0 0x3f>;
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gpio-map = <0 0 &gpioa 4 0>, /* D0 */
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<1 0 &gpioa 5 0>, /* D1 */
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<2 0 &gpioa 3 0>, /* D2 */
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<3 0 &gpioc 6 0>, /* D3 */
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<4 0 &gpioc 7 0>, /* D4 */
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<5 0 &gpioc 8 0>, /* D5 */
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<6 0 &gpioc 9 0>, /* D6 */
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<7 0 &gpiod 2 0>, /* D7 */
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<8 0 &gpiod 3 0>, /* D8 */
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<9 0 &gpiod 4 0>, /* D9 */
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<10 0 &gpiod 5 0>, /* D10 */
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<11 0 &gpioa 9 0>, /* D11 */
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<12 0 &gpioa 8 0>, /* D12 */
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<13 0 &gpiob 4 0>, /* D13 */
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<14 0 &gpiob 0 0>, /* A0 */
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<15 0 &gpiob 2 0>, /* A1 */
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<16 0 &gpiob 5 0>, /* A2 */
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<17 0 &gpioc 0 0>, /* A3 */
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<18 0 &gpioa 6 0>, /* A4 */
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<19 0 &gpioa 7 0>, /* A5 */
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<20 0 &gpiob 1 0>, /* A6 */
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<21 0 &gpiob 3 0>; /* A7 */
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};
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};
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arduino_nano_matter_spi: &eusart1 {};
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arduino_nano_matter_serial: &eusart0 {};
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arduino_nano_matter_i2c: &i2c0 {};

‎boards/arduino/nano_matter/arduino_nano_matter_defconfig‎

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# SPDX-License-Identifier: Apache-2.0
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CONFIG_ARM_MPU=y
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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CONFIG_SERIAL=y
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CONFIG_GPIO=y

‎boards/arduino/nano_matter/board.cmake‎

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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(openocd)
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
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board_runner_args(jlink "--device=MGM240SD22VNA")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

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