/*
 * Copyright (c) 2017 Google LLC.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <arm/armv6-m.dtsi>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/i2c/i2c.h>

/ {
	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-m0+";
			reg = <0>;
		};
	};

	sram0: memory@20000000 {
		compatible = "mmio-sram";
		reg = <0x20000000 0x8000>;
	};

	id: device_id@80a00c {
		compatible = "atmel,sam0-id";
		reg =	<0x0080A00C 0x4>,
			<0x0080A040 0x4>,
			<0x0080A044 0x4>,
			<0x0080A048 0x4>;
	};

	aliases {
		pinmux-a = &pinmux_a;
		pinmux-b = &pinmux_b;
		port-a = &porta;
		port-b = &portb;
		adc-0 = &adc;

		sercom-0 = &sercom0;
		sercom-1 = &sercom1;
		sercom-2 = &sercom2;
		sercom-3 = &sercom3;
		sercom-4 = &sercom4;
		sercom-5 = &sercom5;

		tc-4 = &tc4;
	};

	soc {
		nvmctrl: nvmctrl@41004000  {
			compatible = "atmel,sam0-nvmctrl";
			label = "FLASH_CTRL";
			reg = <0x41004000 0x22>;
			interrupts = <5 0>;

			#address-cells = <1>;
			#size-cells = <1>;

			flash0: flash@0 {
				compatible = "soc-nv-flash";
				label = "FLASH_0";
				reg = <0 0x40000>;
				write-block-size = <64>;
			};
		};

		eic: eic@40001800 {
			compatible = "atmel,sam0-eic";
			reg = <0x40001800 0x1C>;
			interrupts = <4 0>;
			label = "EIC";
		};

		pinmux_a: pinmux@41004400 {
			compatible = "atmel,sam0-pinmux";
			reg = <0x41004400 0x80>;
			label = "PINMUX_A";
		};

		pinmux_b: pinmux@41004480 {
			compatible = "atmel,sam0-pinmux";
			reg = <0x41004480 0x80>;
			label = "PINMUX_B";
		};

		wdog: watchdog@40001000 {
			compatible = "atmel,sam0-watchdog";
			reg = <0x40001000 9>;
			interrupts = <2 0>;
			label = "WATCHDOG_0";
		};

		sercom0: sercom@42000800 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42000800 0x40>;
			status = "disabled";
			label = "SERCOM0";
		};

		sercom1: sercom@42000c00 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42000c00 0x40>;
			status = "disabled";
			label = "SERCOM1";
		};

		sercom2: sercom@42001000 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42001000 0x40>;
			status = "disabled";
			label = "SERCOM2";
		};

		sercom3: sercom@42001400 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42001400 0x40>;
			status = "disabled";
			label = "SERCOM3";
		};

		sercom4: sercom@42001800 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42001800 0x40>;
			status = "disabled";
			label = "SERCOM4";
		};

		sercom5: sercom@42001c00 {
			compatible = "atmel,sam0-sercom";
			reg = <0x42001c00 0x40>;
			status = "disabled";
			label = "SERCOM5";
		};

		tc4: tc@42003000 {
			compatible = "atmel,sam0-tc32";
			reg = <0x42003000 0x20>;
			label = "TIMER_4";
		};

		porta: gpio@41004400 {
			compatible = "atmel,sam0-gpio";
			reg = <0x41004400 0x80>;
			label = "PORTA";
			gpio-controller;
			#gpio-cells = <2>;
		};

		portb: gpio@41004480 {
			compatible = "atmel,sam0-gpio";
			reg = <0x41004480 0x80>;
			label = "PORTB";
			gpio-controller;
			#gpio-cells = <2>;
		};

		rtc: rtc@40001400 {
			compatible = "atmel,sam0-rtc";
			reg = <0x40001400 0x1C>;
			interrupts = <3 0>;
			clock-generator = <0>;
			status = "disabled";
			label = "RTC";
		};

		adc: adc@42004000 {
			compatible = "atmel,sam0-adc";
			reg = <0x42004000 0x2B>;
			label = "ADC_0";

			/*
			 * 2.1 MHz max, so clock it with the
			 * 8 MHz GCLK / 4 = 2 MHz
			 */
			gclk = <3>;
			prescaler = <4>;
			#io-channel-cells = <1>;
		};
	};
};

&nvic {
	arm,num-irq-priority-bits = <2>;
};