| /* |
| * Copyright (c) 2019 Benjamin Valentin |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /dts-v1/; |
| #include <atmel/samr21.dtsi> |
| |
| / { |
| model = "SAM R21 Xplained Pro"; |
| compatible = "atsamr21,xpro", "atmel,samr21g18a", "atmel,samr21"; |
| |
| chosen { |
| zephyr,console = &sercom0; |
| zephyr,shell-uart = &sercom0; |
| zephyr,sram = &sram0; |
| zephyr,flash = &flash0; |
| }; |
| |
| /* These aliases are provided for compatibility with samples */ |
| aliases { |
| led0 = &led0; |
| sw0 = &user_button; |
| i2c-0 = &sercom1; |
| }; |
| |
| leds { |
| compatible = "gpio-leds"; |
| led0: led_0 { |
| gpios = <&porta 19 GPIO_ACTIVE_LOW>; |
| label = "Yellow LED"; |
| }; |
| }; |
| |
| buttons { |
| compatible = "gpio-keys"; |
| user_button: button_0 { |
| gpios = <&porta 28 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; |
| label = "SW0"; |
| }; |
| }; |
| }; |
| |
| &cpu0 { |
| clock-frequency = <48000000>; |
| }; |
| |
| &sercom0 { |
| status = "okay"; |
| compatible = "atmel,sam0-uart"; |
| current-speed = <115200>; |
| rxpo = <1>; |
| txpo = <0>; |
| }; |
| |
| &sercom1 { |
| status = "okay"; |
| compatible = "atmel,sam0-i2c"; |
| clock-frequency = <I2C_BITRATE_FAST>; |
| label = "I2C_0"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| }; |
| |
| &sercom4 { |
| status = "okay"; |
| compatible = "atmel,sam0-spi"; |
| /* |
| * CS-PB31; MOSI-PB30; MISO-PC19; SCLK-PC18 |
| * PAD[1]; PAD[2]; PAD[0]; PAD[3] |
| */ |
| dipo = <0>; |
| dopo = <1>; |
| label = "SPI_RF2XX"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| cs-gpios = <&portb 31 0>; |
| |
| rf2xx@0 { |
| compatible = "atmel,rf2xx"; |
| reg = <0x0>; |
| label = "RF2XX_0"; |
| spi-max-frequency = <6000000>; |
| irq-gpios = <&portb 0 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; |
| reset-gpios = <&portb 15 GPIO_ACTIVE_LOW>; |
| slptr-gpios = <&porta 20 GPIO_ACTIVE_HIGH>; |
| dig2-gpios = <&portb 17 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; |
| status = "okay"; |
| }; |
| }; |
| |
| &sercom5 { |
| status = "okay"; |
| compatible = "atmel,sam0-spi"; |
| dipo = <0>; |
| dopo = <2>; |
| label = "SPI_0"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| }; |
| |
| &usb0 { |
| status = "okay"; |
| }; |
| |
| &rtc { |
| status = "okay"; |
| }; |