u-boot/arch/arm/dts/meson-a1.dtsi

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
 */

#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/gpio/meson-a1-gpio.h>

/ {
	compatible = "amlogic,a1";

	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	cpus {
		#address-cells = <2>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			reg = <0x0 0x0>;
			enable-method = "psci";
			next-level-cache = <&l2>;
		};

		cpu1: cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			reg = <0x0 0x1>;
			enable-method = "psci";
			next-level-cache = <&l2>;
		};

		l2: l2-cache0 {
			compatible = "cache";
			cache-level = <2>;
		};
	};

	psci {
		compatible = "arm,psci-1.0";
		method = "smc";
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		linux,cma {
			compatible = "shared-dma-pool";
			reusable;
			size = <0x0 0x800000>;
			alignment = <0x0 0x400000>;
			linux,cma-default;
		};
	};

	sm: secure-monitor {
		compatible = "amlogic,meson-gxbb-sm";

		pwrc: power-controller {
			compatible = "amlogic,meson-a1-pwrc";
			#power-domain-cells = <1>;
			status = "okay";
		};
	};

	soc {
		compatible = "simple-bus";
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		apb: bus@fe000000 {
			compatible = "simple-bus";
			reg = <0x0 0xfe000000 0x0 0x1000000>;
			#address-cells = <2>;
			#size-cells = <2>;
			ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x1000000>;

			reset: reset-controller@0 {
				compatible = "amlogic,meson-a1-reset";
				reg = <0x0 0x0 0x0 0x8c>;
				#reset-cells = <1>;
			};

			periphs_pinctrl: pinctrl@400 {
				compatible = "amlogic,meson-a1-periphs-pinctrl";
				#address-cells = <2>;
				#size-cells = <2>;
				ranges;

				gpio: bank@400 {
					reg = <0x0 0x0400 0x0 0x003c>,
					      <0x0 0x0480 0x0 0x0118>;
					reg-names = "mux", "gpio";
					gpio-controller;
					#gpio-cells = <2>;
					gpio-ranges = <&periphs_pinctrl 0 0 62>;
				};

			};

			uart_AO: serial@1c00 {
				compatible = "amlogic,meson-gx-uart",
					     "amlogic,meson-ao-uart";
				reg = <0x0 0x1c00 0x0 0x18>;
				interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
				clocks = <&xtal>, <&xtal>, <&xtal>;
				clock-names = "xtal", "pclk", "baud";
				status = "disabled";
			};

			uart_AO_B: serial@2000 {
				compatible = "amlogic,meson-gx-uart",
					     "amlogic,meson-ao-uart";
				reg = <0x0 0x2000 0x0 0x18>;
				interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
				clocks = <&xtal>, <&xtal>, <&xtal>;
				clock-names = "xtal", "pclk", "baud";
				status = "disabled";
			};

			hwrng: rng@5118 {
				compatible = "amlogic,meson-rng";
				reg = <0x0 0x5118 0x0 0x4>;
			};

			sec_AO: ao-secure@5a20 {
				compatible = "amlogic,meson-gx-ao-secure", "syscon";
				reg = <0x0 0x5a20 0x0 0x140>;
				amlogic,has-chip-id;
			};
		};

		gic: interrupt-controller@ff901000 {
			compatible = "arm,gic-400";
			reg = <0x0 0xff901000 0x0 0x1000>,
			      <0x0 0xff902000 0x0 0x2000>,
			      <0x0 0xff904000 0x0 0x2000>,
			      <0x0 0xff906000 0x0 0x2000>;
			interrupt-controller;
			interrupts = <GIC_PPI 9
				(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
			#interrupt-cells = <3>;
			#address-cells = <0>;
		};
	};

	timer {
		compatible = "arm,armv8-timer";
		interrupts = <GIC_PPI 13
			(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 14
			(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 11
			(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 10
			(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>;
	};

	xtal: xtal-clk {
		compatible = "fixed-clock";
		clock-frequency = <24000000>;
		clock-output-names = "xtal";
		#clock-cells = <0>;
	};
};