CooCenter-System-kernel/arch/arc/boot/dts/vdk_axc003_idu.dtsi

/*
 * Copyright (C) 2014, 2015 Synopsys, Inc. (www.synopsys.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/*
 * Device tree for AXC003 CPU card:
 * HS38x2 (Dual Core) with IDU intc (VDK version)
 */

/ {
	compatible = "snps,arc";
	clock-frequency = <50000000>;
	#address-cells = <1>;
	#size-cells = <1>;

	cpu_card {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;

		ranges = <0x00000000 0xf0000000 0x10000000>;

		cpu_intc: archs-intc@cpu {
			compatible = "snps,archs-intc";
			interrupt-controller;
			#interrupt-cells = <1>;
		};

		idu_intc: idu-interrupt-controller {
			compatible = "snps,archs-idu-intc";
			interrupt-controller;
			interrupt-parent = <&cpu_intc>;

			/*
			 * <hwirq  distribution>
			 * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
			 */
			#interrupt-cells = <2>;

			interrupts = <24 25 26 27>;
		};

		debug_uart: dw-apb-uart@0x5000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x5000 0x100>;
			clock-frequency = <2403200>;
			interrupt-parent = <&idu_intc>;
			interrupts = <2 0>;
			baud = <115200>;
			reg-shift = <2>;
			reg-io-width = <4>;
		};

	};

	mb_intc: dw-apb-ictl@0xe0012000 {
		#interrupt-cells = <1>;
		compatible = "snps,dw-apb-ictl";
		reg = < 0xe0012000 0x200 >;
		interrupt-controller;
		interrupt-parent = <&idu_intc>;
		interrupts = < 0 0 >;
	};

	memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0x00000000 0x80000000 0x40000000>;
		device_type = "memory";
		reg = <0x80000000 0x20000000>;	/* 512MiB */
	};
};