1/*
2 * Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com)
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9/*
10 * Device tree for AXC001 770D/EM6/AS221 CPU card
11 * Note that this file only supports the 770D CPU
12 */
13
14/include/ "skeleton.dtsi"
15
16/ {
17	compatible = "snps,arc";
18	clock-frequency = <750000000>;	/* 750 MHZ */
19	#address-cells = <1>;
20	#size-cells = <1>;
21
22	cpu_card {
23		compatible = "simple-bus";
24		#address-cells = <1>;
25		#size-cells = <1>;
26
27		ranges = <0x00000000 0xf0000000 0x10000000>;
28
29		cpu_intc: arc700-intc@cpu {
30			compatible = "snps,arc700-intc";
31			interrupt-controller;
32			#interrupt-cells = <1>;
33		};
34
35		/*
36		 * this GPIO block ORs all interrupts on CPU card (creg,..)
37		 * to uplink only 1 IRQ to ARC core intc
38		 */
39		dw-apb-gpio@0x2000 {
40			compatible = "snps,dw-apb-gpio";
41			reg = < 0x2000 0x80 >;
42			#address-cells = <1>;
43			#size-cells = <0>;
44
45			ictl_intc: gpio-controller@0 {
46				compatible = "snps,dw-apb-gpio-port";
47				gpio-controller;
48				#gpio-cells = <2>;
49				snps,nr-gpios = <30>;
50				reg = <0>;
51				interrupt-controller;
52				#interrupt-cells = <2>;
53				interrupt-parent = <&cpu_intc>;
54				interrupts = <15>;
55			};
56		};
57
58		debug_uart: dw-apb-uart@0x5000 {
59			compatible = "snps,dw-apb-uart";
60			reg = <0x5000 0x100>;
61			clock-frequency = <33333000>;
62			interrupt-parent = <&ictl_intc>;
63			interrupts = <19 4>;
64			baud = <115200>;
65			reg-shift = <2>;
66			reg-io-width = <4>;
67		};
68
69		arcpmu0: pmu {
70			compatible = "snps,arc700-pct";
71		};
72	};
73
74	/*
75	 * This INTC is actually connected to DW APB GPIO
76	 * which acts as a wire between MB INTC and CPU INTC.
77	 * GPIO INTC is configured in platform init code
78	 * and here we mimic direct connection from MB INTC to
79	 * CPU INTC, thus we set "interrupts = <7>" instead of
80	 * "interrupts = <12>"
81	 *
82	 * This intc actually resides on MB, but we move it here to
83	 * avoid duplicating the MB dtsi file given that IRQ from
84	 * this intc to cpu intc are different for axs101 and axs103
85	 */
86	mb_intc: dw-apb-ictl@0xe0012000 {
87		#interrupt-cells = <1>;
88		compatible = "snps,dw-apb-ictl";
89		reg = < 0xe0012000 0x200 >;
90		interrupt-controller;
91		interrupt-parent = <&cpu_intc>;
92		interrupts = < 7 >;
93	};
94
95	memory {
96		#address-cells = <1>;
97		#size-cells = <1>;
98		ranges = <0x00000000 0x80000000 0x40000000>;
99		device_type = "memory";
100		reg = <0x80000000 0x20000000>;	/* 512MiB */
101	};
102};
103