1/*
2 * Copyright (C) 2017 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 ARC HS Development Kit
11 */
12/dts-v1/;
13
14#include <dt-bindings/net/ti-dp83867.h>
15
16/ {
17	model = "snps,hsdk";
18	compatible = "snps,hsdk";
19
20	#address-cells = <1>;
21	#size-cells = <1>;
22
23	chosen {
24		bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
25	};
26
27	cpus {
28		#address-cells = <1>;
29		#size-cells = <0>;
30
31		cpu@0 {
32			device_type = "cpu";
33			compatible = "snps,archs38";
34			reg = <0>;
35			clocks = <&core_clk>;
36		};
37
38		cpu@1 {
39			device_type = "cpu";
40			compatible = "snps,archs38";
41			reg = <1>;
42			clocks = <&core_clk>;
43		};
44
45		cpu@2 {
46			device_type = "cpu";
47			compatible = "snps,archs38";
48			reg = <2>;
49			clocks = <&core_clk>;
50		};
51
52		cpu@3 {
53			device_type = "cpu";
54			compatible = "snps,archs38";
55			reg = <3>;
56			clocks = <&core_clk>;
57		};
58	};
59
60	input_clk: input-clk {
61		#clock-cells = <0>;
62		compatible = "fixed-clock";
63		clock-frequency = <33333333>;
64	};
65
66	cpu_intc: cpu-interrupt-controller {
67		compatible = "snps,archs-intc";
68		interrupt-controller;
69		#interrupt-cells = <1>;
70	};
71
72	idu_intc: idu-interrupt-controller {
73		compatible = "snps,archs-idu-intc";
74		interrupt-controller;
75		#interrupt-cells = <1>;
76		interrupt-parent = <&cpu_intc>;
77	};
78
79	arcpct: pct {
80		compatible = "snps,archs-pct";
81	};
82
83	/* TIMER0 with interrupt for clockevent */
84	timer {
85		compatible = "snps,arc-timer";
86		interrupts = <16>;
87		interrupt-parent = <&cpu_intc>;
88		clocks = <&core_clk>;
89	};
90
91	/* 64-bit Global Free Running Counter */
92	gfrc {
93		compatible = "snps,archs-timer-gfrc";
94		clocks = <&core_clk>;
95	};
96
97	soc {
98		compatible = "simple-bus";
99		#address-cells = <1>;
100		#size-cells = <1>;
101		interrupt-parent = <&idu_intc>;
102
103		ranges = <0x00000000 0xf0000000 0x10000000>;
104
105		core_clk: core-clk@0 {
106			compatible = "snps,hsdk-core-pll-clock";
107			reg = <0x00 0x10>, <0x14B8 0x4>;
108			#clock-cells = <0>;
109			clocks = <&input_clk>;
110		};
111
112		serial: serial@5000 {
113			compatible = "snps,dw-apb-uart";
114			reg = <0x5000 0x100>;
115			clock-frequency = <33330000>;
116			interrupts = <6>;
117			baud = <115200>;
118			reg-shift = <2>;
119			reg-io-width = <4>;
120		};
121
122		gmacclk: gmacclk {
123			compatible = "fixed-clock";
124			clock-frequency = <400000000>;
125			#clock-cells = <0>;
126		};
127
128		mmcclk_ciu: mmcclk-ciu {
129			compatible = "fixed-clock";
130			/*
131			 * DW sdio controller has external ciu clock divider
132			 * controlled via register in SDIO IP. Due to its
133			 * unexpected default value (it should devide by 1
134			 * but it devides by 8) SDIO IP uses wrong clock and
135			 * works unstable (see STAR 9001204800)
136			 * So add temporary fix and change clock frequency
137			 * from 100000000 to 12500000 Hz until we fix dw sdio
138			 * driver itself.
139			 */
140			clock-frequency = <12500000>;
141			#clock-cells = <0>;
142		};
143
144		mmcclk_biu: mmcclk-biu {
145			compatible = "fixed-clock";
146			clock-frequency = <400000000>;
147			#clock-cells = <0>;
148		};
149
150		ethernet@8000 {
151			#interrupt-cells = <1>;
152			compatible = "snps,dwmac";
153			reg = <0x8000 0x2000>;
154			interrupts = <10>;
155			interrupt-names = "macirq";
156			phy-mode = "rgmii";
157			snps,pbl = <32>;
158			clocks = <&gmacclk>;
159			clock-names = "stmmaceth";
160			phy-handle = <&phy0>;
161
162			mdio {
163				#address-cells = <1>;
164				#size-cells = <0>;
165				compatible = "snps,dwmac-mdio";
166				phy0: ethernet-phy@0 {
167					reg = <0>;
168					ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
169					ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
170					ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
171				};
172			};
173		};
174
175		ohci@60000 {
176			compatible = "snps,hsdk-v1.0-ohci", "generic-ohci";
177			reg = <0x60000 0x100>;
178			interrupts = <15>;
179		};
180
181		ehci@40000 {
182			compatible = "snps,hsdk-v1.0-ehci", "generic-ehci";
183			reg = <0x40000 0x100>;
184			interrupts = <15>;
185		};
186
187		mmc@a000 {
188			compatible = "altr,socfpga-dw-mshc";
189			reg = <0xa000 0x400>;
190			num-slots = <1>;
191			fifo-depth = <16>;
192			card-detect-delay = <200>;
193			clocks = <&mmcclk_biu>, <&mmcclk_ciu>;
194			clock-names = "biu", "ciu";
195			interrupts = <12>;
196			bus-width = <4>;
197		};
198	};
199
200	memory@80000000 {
201		#address-cells = <1>;
202		#size-cells = <1>;
203		device_type = "memory";
204		reg = <0x80000000 0x40000000>;  /* 1 GiB */
205	};
206};
207