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boards: arm: atsaml21: Add SAML21 Xplained board
Implement support for SAML21 Xplained Pro dev board. Signed-off-by: Attie Grande <[email protected]>
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‎boards/arm/atsaml21_xpro/Kconfig.board‎

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# SAM L21 Xplained Pro board configuration
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# Copyright (c) 2021 Argentum Systems Ltd.
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_ATSAML21_XPRO
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bool "SAM L21 Xplained Pro"
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depends on SOC_PART_NUMBER_SAML21J18B

‎boards/arm/atsaml21_xpro/Kconfig.defconfig‎

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# SAM L21 Xplained Pro board configuration
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# Copyright (c) 2021 Argentum Systems Ltd.
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# SPDX-License-Identifier: Apache-2.0
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config BOARD
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default "atsaml21_xpro"
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depends on BOARD_ATSAML21_XPRO

‎boards/arm/atsaml21_xpro/atsaml21_xpro-pinctrl.dtsi‎

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/*
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* Copyright (c) 2021 Argentum Systems Ltd.
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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/saml21j-pinctrl.h>
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&pinctrl {
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tcc0_default: tcc0_default {
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group1 {
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pinmux = <PB10F_TCC0_WO4>;
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};
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};
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sercom0_default: sercom0_default {
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group1 {
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pinmux = <PA4D_SERCOM0_PAD0>,
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<PA6D_SERCOM0_PAD2>,
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<PA7D_SERCOM0_PAD3>;
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};
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};
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sercom1_default: sercom1_default {
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group1 {
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pinmux = <PA18C_SERCOM1_PAD2>,
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<PA19C_SERCOM1_PAD3>;
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};
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};
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sercom2_default: sercom2_default {
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group1 {
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pinmux = <PA8D_SERCOM2_PAD0>,
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<PA9D_SERCOM2_PAD1>;
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};
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};
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sercom3_default: sercom3_default {
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group1 {
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pinmux = <PA22C_SERCOM3_PAD0>,
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<PA23C_SERCOM3_PAD1>;
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};
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};
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sercom4_default: sercom4_default {
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group1 {
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pinmux = <PB8D_SERCOM4_PAD0>,
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<PB9D_SERCOM4_PAD1>;
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};
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};
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sercom5_default: sercom5_default {
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group1 {
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pinmux = <PB16C_SERCOM5_PAD0>,
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<PB22D_SERCOM5_PAD2>,
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<PB23D_SERCOM5_PAD3>;
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};
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};
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};

‎boards/arm/atsaml21_xpro/atsaml21_xpro.dts‎

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/*
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* Copyright (c) 2021 Argentum Systems Ltd.
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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 <atmel/saml21.dtsi>
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#include "atsaml21_xpro-pinctrl.dtsi"
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/ {
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model = "SAM L21 Xplained Pro";
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compatible = "atsaml21,xpro", "atmel,saml21j18b", "atmel,saml21";
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chosen {
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zephyr,console = &sercom3;
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zephyr,shell-uart = &sercom3;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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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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pwm-led0 = &pwm_led0;
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sw0 = &user_button;
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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 = <&portb 10 GPIO_ACTIVE_LOW>;
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label = "Yellow LED";
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};
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};
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pwmleds {
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compatible = "pwm-leds";
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pwm_led0: pwm_led_0 {
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pwms = <&tcc0 0 PWM_MSEC(20)>;
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};
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};
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buttons {
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compatible = "gpio-keys";
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user_button: button_0 {
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gpios = <&porta 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
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label = "SW0";
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};
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};
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};
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&cpu0 {
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clock-frequency = <48000000>;
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};
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&adc {
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status = "okay";
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};
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&tcc0 {
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status = "okay";
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compatible = "atmel,sam0-tcc-pwm";
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/* Gives a maximum period of 1.4s */
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prescaler = <4>;
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#pwm-cells = <2>;
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pinctrl-0 = <&tcc0_default>;
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pinctrl-names = "default";
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};
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&sercom0 {
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status = "okay";
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compatible = "atmel,sam0-spi";
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dipo = <0>;
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dopo = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-0 = <&sercom0_default>;
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pinctrl-names = "default";
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};
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&sercom1 {
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status = "okay";
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compatible = "atmel,sam0-uart";
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current-speed = <115200>;
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rxpo = <3>;
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txpo = <0>;
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pinctrl-0 = <&sercom1_default>;
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pinctrl-names = "default";
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};
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&sercom2 {
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status = "okay";
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compatible = "atmel,sam0-i2c";
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clock-frequency = <I2C_BITRATE_FAST>;
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-0 = <&sercom2_default>;
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pinctrl-names = "default";
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};
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&sercom3 {
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status = "okay";
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compatible = "atmel,sam0-uart";
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current-speed = <115200>;
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rxpo = <1>;
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txpo = <0>;
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pinctrl-0 = <&sercom3_default>;
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pinctrl-names = "default";
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};
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&sercom4 {
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status = "okay";
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compatible = "atmel,sam0-uart";
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current-speed = <115200>;
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rxpo = <1>;
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txpo = <0>;
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pinctrl-0 = <&sercom4_default>;
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pinctrl-names = "default";
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};
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&sercom5 {
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status = "okay";
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compatible = "atmel,sam0-spi";
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dipo = <0>;
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dopo = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-0 = <&sercom5_default>;
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pinctrl-names = "default";
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};
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zephyr_udc0: &usb0 {
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status = "okay";
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};

‎boards/arm/atsaml21_xpro/atsaml21_xpro.yaml‎

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# Copyright (c) 2021 Argentum Systems Ltd.
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# SPDX-License-Identifier: Apache-2.0
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identifier: atsaml21_xpro
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name: SAM L21 Xplained Pro
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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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- xtools
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supported:
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- adc
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- counter
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- dma
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- gpio
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- i2c
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- pwm
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- spi
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- usb_cdc
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- usb_device
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- watchdog

‎boards/arm/atsaml21_xpro/atsaml21_xpro_defconfig‎

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# Copyright (c) 2021 Argentum Systems Ltd.
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_SOC_SERIES_SAML21=y
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CONFIG_SOC_PART_NUMBER_SAML21J18B=y
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CONFIG_BOARD_ATSAML21_XPRO=y
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CONFIG_BUILD_OUTPUT_HEX=y
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CONFIG_CORTEX_M_SYSTICK=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_UART_SAM0=y
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CONFIG_UART_INTERRUPT_DRIVEN=y
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CONFIG_GPIO=y
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CONFIG_GPIO_SAM0=y
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CONFIG_SOC_ATMEL_SAML_XOSC32K=y
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CONFIG_SOC_ATMEL_SAML_XOSC32K_AS_MAIN=y

‎boards/arm/atsaml21_xpro/board.cmake‎

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# Copyright (c) 2021 Argentum Systems Ltd.
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# SPDX-License-Identifier: Apache-2.0
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

‎boards/arm/atsaml21_xpro/doc/img/atsaml21-xpro-pinout.png‎

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‎boards/arm/atsaml21_xpro/doc/img/atsaml21-xpro.png‎

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