aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/boot/dts/walnut.dts
blob: 4a9f726ada139b47d4c45edff3b71b04cbd5f024 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
/*
 * Device Tree Source for IBM Walnut
 *
 * Copyright 2007 IBM Corp.
 * Josh Boyer <jwboyer@linux.vnet.ibm.com>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without
 * any warranty of any kind, whether express or implied.
 */

/dts-v1/;

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	model = "ibm,walnut";
	compatible = "ibm,walnut";
	dcr-parent = <&{/cpus/cpu@0}>;

	aliases {
		ethernet0 = &EMAC;
		serial0 = &UART0;
		serial1 = &UART1;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu@0 {
			device_type = "cpu";
			model = "PowerPC,405GP";
			reg = <0x00000000>;
			clock-frequency = <200000000>; /* Filled in by zImage */
			timebase-frequency = <0>; /* Filled in by zImage */
			i-cache-line-size = <32>;
			d-cache-line-size = <32>;
			i-cache-size = <16384>;
			d-cache-size = <16384>;
			dcr-controller;
			dcr-access-method = "native";
		};
	};

	memory {
		device_type = "memory";
		reg = <0x00000000 0x00000000>; /* Filled in by zImage */
	};

	UIC0: interrupt-controller {
		compatible = "ibm,uic";
		interrupt-controller;
		cell-index = <0>;
		dcr-reg = <0x0c0 0x009>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;
	};

	plb {
		compatible = "ibm,plb3";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;
		clock-frequency = <0>; /* Filled in by zImage */

		SDRAM0: memory-controller {
			compatible = "ibm,sdram-405gp";
			dcr-reg = <0x010 0x002>;
		};

		MAL: mcmal {
			compatible = "ibm,mcmal-405gp", "ibm,mcmal";
			dcr-reg = <0x180 0x062>;
			num-tx-chans = <1>;
			num-rx-chans = <1>;
			interrupt-parent = <&UIC0>;
			interrupts = <
				0xb 0x4 /* TXEOB */
				0xc 0x4 /* RXEOB */
				0xa 0x4 /* SERR */
				0xd 0x4 /* TXDE */
				0xe 0x4 /* RXDE */>;
		};

		POB0: opb {
			compatible = "ibm,opb-405gp", "ibm,opb";
			#address-cells = <1>;
			#size-cells = <1>;
			ranges = <0xef600000 0xef600000 0x00a00000>;
			dcr-reg = <0x0a0 0x005>;
			clock-frequency = <0>; /* Filled in by zImage */

			UART0: serial@ef600300 {
				device_type = "serial";
				compatible = "ns16550";
				reg = <0xef600300 0x00000008>;
				virtual-reg = <0xef600300>;
				clock-frequency = <0>; /* Filled in by zImage */
				current-speed = <9600>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x0 0x4>;
			};

			UART1: serial@ef600400 {
				device_type = "serial";
				compatible = "ns16550";
				reg = <0xef600400 0x00000008>;
				virtual-reg = <0xef600400>;
				clock-frequency = <0>; /* Filled in by zImage */
				current-speed = <9600>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x1 0x4>;
			};

			IIC: i2c@ef600500 {
				compatible = "ibm,iic-405gp", "ibm,iic";
				reg = <0xef600500 0x00000011>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x2 0x4>;
			};

			GPIO: gpio@ef600700 {
				compatible = "ibm,gpio-405gp";
				reg = <0xef600700 0x00000020>;
			};

			EMAC: ethernet@ef600800 {
				device_type = "network";
				compatible = "ibm,emac-405gp", "ibm,emac";
				interrupt-parent = <&UIC0>;
				interrupts = <
					0xf 0x4 /* Ethernet */
					0x9 0x4 /* Ethernet Wake Up */>;
				local-mac-address = [000000000000]; /* Filled in by zImage */
				reg = <0xef600800 0x00000070>;
				mal-device = <&MAL>;
				mal-tx-channel = <0>;
				mal-rx-channel = <0>;
				cell-index = <0>;
				max-frame-size = <1500>;
				rx-fifo-size = <4096>;
				tx-fifo-size = <2048>;
				phy-mode = "rmii";
				phy-map = <0x00000001>;
			};

		};

		EBC0: ebc {
			compatible = "ibm,ebc-405gp", "ibm,ebc";
			dcr-reg = <0x012 0x002>;
			#address-cells = <2>;
			#size-cells = <1>;
			/* The ranges property is supplied by the bootwrapper
			 * and is based on the firmware's configuration of the
			 * EBC bridge
			 */
			clock-frequency = <0>; /* Filled in by zImage */

			sram@0,0 {
				reg = <0x00000000 0x00000000 0x00080000>;
			};

			flash@0,80000 {
				compatible = "jedec-flash";
				bank-width = <1>;
				reg = <0x00000000 0x00080000 0x00080000>;
				#address-cells = <1>;
				#size-cells = <1>;
				partition@0 {
					label = "OpenBIOS";
					reg = <0x00000000 0x00080000>;
					read-only;
				};
			};

			nvram@1,0 {
				/* NVRAM and RTC */
				compatible = "ds1743-nvram";
				#bytes = <0x2000>;
				reg = <0x00000001 0x00000000 0x00002000>;
			};

			keyboard@2,0 {
				compatible = "intel,82C42PC";
				reg = <0x00000002 0x00000000 0x00000002>;
			};

			ir@3,0 {
				compatible = "ti,TIR2000PAG";
				reg = <0x00000003 0x00000000 0x00000010>;
			};

			fpga@7,0 {
				compatible = "Walnut-FPGA";
				reg = <0x00000007 0x00000000 0x00000010>;
				virtual-reg = <0xf0300005>;
			};
		};

		PCI0: pci@ec000000 {
			device_type = "pci";
			#interrupt-cells = <1>;
			#size-cells = <2>;
			#address-cells = <3>;
			compatible = "ibm,plb405gp-pci", "ibm,plb-pci";
			primary;
			reg = <0xeec00000 0x00000008	/* Config space access */
			       0xeed80000 0x00000004	/* IACK */
			       0xeed80000 0x00000004	/* Special cycle */
			       0xef480000 0x00000040>;	/* Internal registers */

			/* Outbound ranges, one memory and one IO,
			 * later cannot be changed. Chip supports a second
			 * IO range but we don't use it for now
			 */
			ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x20000000
				  0x01000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>;

			/* Inbound 2GB range starting at 0 */
			dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x80000000>;

			/* Walnut has all 4 IRQ pins tied together per slot */
			interrupt-map-mask = <0xf800 0x0 0x0 0x0>;
			interrupt-map = <
				/* IDSEL 1 */
				0x800 0x0 0x0 0x0 &UIC0 0x1c 0x8

				/* IDSEL 2 */
				0x1000 0x0 0x0 0x0 &UIC0 0x1d 0x8

				/* IDSEL 3 */
				0x1800 0x0 0x0 0x0 &UIC0 0x1e 0x8

				/* IDSEL 4 */
				0x2000 0x0 0x0 0x0 &UIC0 0x1f 0x8
			>;
		};
	};

	chosen {
		linux,stdout-path = "/plb/opb/serial@ef600300";
	};
};