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
|
/*
* 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.
*/
/ {
#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 = <0>;
clock-frequency = <bebc200>; /* Filled in by zImage */
timebase-frequency = <0>; /* Filled in by zImage */
i-cache-line-size = <20>;
d-cache-line-size = <20>;
i-cache-size = <4000>;
d-cache-size = <4000>;
dcr-controller;
dcr-access-method = "native";
};
};
memory {
device_type = "memory";
reg = <0 0>; /* Filled in by zImage */
};
UIC0: interrupt-controller {
compatible = "ibm,uic";
interrupt-controller;
cell-index = <0>;
dcr-reg = <0c0 9>;
#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 = <010 2>;
};
MAL: mcmal {
compatible = "ibm,mcmal-405gp", "ibm,mcmal";
dcr-reg = <180 62>;
num-tx-chans = <1>;
num-rx-chans = <1>;
interrupt-parent = <&UIC0>;
interrupts = <
b 4 /* TXEOB */
c 4 /* RXEOB */
a 4 /* SERR */
d 4 /* TXDE */
e 4 /* RXDE */>;
};
POB0: opb {
compatible = "ibm,opb-405gp", "ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
ranges = <ef600000 ef600000 a00000>;
dcr-reg = <0a0 5>;
clock-frequency = <0>; /* Filled in by zImage */
UART0: serial@ef600300 {
device_type = "serial";
compatible = "ns16550";
reg = <ef600300 8>;
virtual-reg = <ef600300>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <2580>;
interrupt-parent = <&UIC0>;
interrupts = <0 4>;
};
UART1: serial@ef600400 {
device_type = "serial";
compatible = "ns16550";
reg = <ef600400 8>;
virtual-reg = <ef600400>;
clock-frequency = <0>; /* Filled in by zImage */
current-speed = <2580>;
interrupt-parent = <&UIC0>;
interrupts = <1 4>;
};
IIC: i2c@ef600500 {
compatible = "ibm,iic-405gp", "ibm,iic";
reg = <ef600500 11>;
interrupt-parent = <&UIC0>;
interrupts = <2 4>;
};
GPIO: gpio@ef600700 {
compatible = "ibm,gpio-405gp";
reg = <ef600700 20>;
};
EMAC: ethernet@ef600800 {
linux,network-index = <0>;
device_type = "network";
compatible = "ibm,emac-405gp", "ibm,emac";
interrupt-parent = <&UIC0>;
interrupts = <
f 4 /* Ethernet */
9 4 /* Ethernet Wake Up */>;
local-mac-address = [000000000000]; /* Filled in by zImage */
reg = <ef600800 70>;
mal-device = <&MAL>;
mal-tx-channel = <0>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <5dc>;
rx-fifo-size = <1000>;
tx-fifo-size = <800>;
phy-mode = "rmii";
phy-map = <00000001>;
};
};
EBC0: ebc {
compatible = "ibm,ebc-405gp", "ibm,ebc";
dcr-reg = <012 2>;
#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 = <0 0 80000>;
};
flash@0,80000 {
compatible = "jedec-flash";
bank-width = <1>;
reg = <0 80000 80000>;
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "OpenBIOS";
reg = <0 80000>;
read-only;
};
};
ds1743@1,0 {
/* NVRAM and RTC */
compatible = "ds1743";
reg = <1 0 2000>;
};
keyboard@2,0 {
compatible = "intel,82C42PC";
reg = <2 0 2>;
};
ir@3,0 {
compatible = "ti,TIR2000PAG";
reg = <3 0 10>;
};
fpga@7,0 {
compatible = "Walnut-FPGA";
reg = <7 0 10>;
virtual-reg = <f0300005>;
};
};
PCI0: pci@ec000000 {
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb405gp-pci", "ibm,plb-pci";
primary;
reg = <eec00000 8 /* Config space access */
eed80000 4 /* IACK */
eed80000 4 /* Special cycle */
ef480000 40>; /* 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 = <02000000 0 80000000 80000000 0 20000000
01000000 0 00000000 e8000000 0 00010000>;
/* Inbound 2GB range starting at 0 */
dma-ranges = <42000000 0 0 0 0 80000000>;
/* Walnut has all 4 IRQ pins tied together per slot */
interrupt-map-mask = <f800 0 0 0>;
interrupt-map = <
/* IDSEL 1 */
0800 0 0 0 &UIC0 1c 8
/* IDSEL 2 */
1000 0 0 0 &UIC0 1d 8
/* IDSEL 3 */
1800 0 0 0 &UIC0 1e 8
/* IDSEL 4 */
2000 0 0 0 &UIC0 1f 8
>;
};
};
chosen {
linux,stdout-path = "/plb/opb/serial@ef600300";
};
};
|
