1/*
2 * Device Tree Source for IBM Embedded PPC 476 Platform
3 *
4 * Copyright 2010 Torez Smith, IBM Corporation.
5 *
6 * Based on earlier code:
7 *     Copyright (c) 2006, 2007 IBM Corp.
8 *     Josh Boyer <jwboyer@linux.vnet.ibm.com>, David Gibson <dwg@au1.ibm.com>
9 *
10 * This file is licensed under the terms of the GNU General Public
11 * License version 2.  This program is licensed "as is" without
12 * any warranty of any kind, whether express or implied.
13 */
14
15/dts-v1/;
16
17/memreserve/ 0x01f00000 0x00100000;
18
19/ {
20	#address-cells = <2>;
21	#size-cells = <1>;
22	model = "ibm,iss-4xx";
23	compatible = "ibm,iss-4xx";
24	dcr-parent = <&{/cpus/cpu@0}>;
25
26	aliases {
27		serial0 = &UART0;
28	};
29
30	cpus {
31		#address-cells = <1>;
32		#size-cells = <0>;
33
34		cpu@0 {
35			device_type = "cpu";
36			model = "PowerPC,4xx"; // real CPU changed in sim
37			reg = <0>;
38			clock-frequency = <100000000>; // 100Mhz :-)
39			timebase-frequency = <100000000>;
40			i-cache-line-size = <32>;
41			d-cache-line-size = <32>;
42			i-cache-size = <32768>;
43			d-cache-size = <32768>;
44			dcr-controller;
45			dcr-access-method = "native";
46			status = "okay";
47		};
48		cpu@1 {
49			device_type = "cpu";
50			model = "PowerPC,4xx"; // real CPU changed in sim
51			reg = <1>;
52			clock-frequency = <100000000>; // 100Mhz :-)
53			timebase-frequency = <100000000>;
54			i-cache-line-size = <32>;
55			d-cache-line-size = <32>;
56			i-cache-size = <32768>;
57			d-cache-size = <32768>;
58			dcr-controller;
59			dcr-access-method = "native";
60			status = "disabled";
61			enable-method = "spin-table";
62			cpu-release-addr = <0 0x01f00100>;
63		};
64		cpu@2 {
65			device_type = "cpu";
66			model = "PowerPC,4xx"; // real CPU changed in sim
67			reg = <2>;
68			clock-frequency = <100000000>; // 100Mhz :-)
69			timebase-frequency = <100000000>;
70			i-cache-line-size = <32>;
71			d-cache-line-size = <32>;
72			i-cache-size = <32768>;
73			d-cache-size = <32768>;
74			dcr-controller;
75			dcr-access-method = "native";
76			status = "disabled";
77			enable-method = "spin-table";
78			cpu-release-addr = <0 0x01f00200>;
79		};
80		cpu@3 {
81			device_type = "cpu";
82			model = "PowerPC,4xx"; // real CPU changed in sim
83			reg = <3>;
84			clock-frequency = <100000000>; // 100Mhz :-)
85			timebase-frequency = <100000000>;
86			i-cache-line-size = <32>;
87			d-cache-line-size = <32>;
88			i-cache-size = <32768>;
89			d-cache-size = <32768>;
90			dcr-controller;
91			dcr-access-method = "native";
92			status = "disabled";
93			enable-method = "spin-table";
94			cpu-release-addr = <0 0x01f00300>;
95		};
96	};
97
98	memory {
99		device_type = "memory";
100		reg =  <0x00000000 0x00000000 0x00000000>; // Filled in by zImage
101
102	};
103
104	MPIC: interrupt-controller {
105		compatible = "chrp,open-pic";
106		interrupt-controller;
107		dcr-reg = <0xffc00000 0x00030000>;
108		#address-cells = <0>;
109		#size-cells = <0>;
110		#interrupt-cells = <2>;
111
112	};
113
114	plb {
115		compatible = "ibm,plb-4xx", "ibm,plb4"; /* Could be PLB6, doesn't matter */
116		#address-cells = <2>;
117		#size-cells = <1>;
118		ranges;
119		clock-frequency = <0>; // Filled in by zImage
120
121		POB0: opb {
122			compatible = "ibm,opb-4xx", "ibm,opb";
123			#address-cells = <1>;
124			#size-cells = <1>;
125			/* Wish there was a nicer way of specifying a full 32-bit
126			   range */
127			ranges = <0x00000000 0x00000001 0x00000000 0x80000000
128				  0x80000000 0x00000001 0x80000000 0x80000000>;
129			clock-frequency = <0>; // Filled in by zImage
130			UART0: serial@40000200 {
131				device_type = "serial";
132				compatible = "ns16550a";
133				reg = <0x40000200 0x00000008>;
134				virtual-reg = <0xe0000200>;
135				clock-frequency = <11059200>;
136				current-speed = <115200>;
137				interrupt-parent = <&MPIC>;
138				interrupts = <0x0 0x2>;
139			};
140		};
141	};
142
143	nvrtc {
144		compatible = "ds1743-nvram", "ds1743", "rtc-ds1743";
145		reg = <0 0xEF703000 0x2000>;
146	};
147	iss-block {
148		compatible = "ibm,iss-sim-block-device";
149		reg = <0 0xEF701000 0x1000>;
150	};
151
152	chosen {
153		stdout-path = "/plb/opb/serial@40000200";
154	};
155};
156