1 /*
2 * Device Tree Source for IBM Embedded PPC 476 Platform
3 *
4 * Copyright © 2011 Tony Breeds IBM Corporation
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without
8 * any warranty of any kind, whether express or implied.
9 */
10
11 /dts-v1/;
12
13 /memreserve/ 0x01f00000 0x00100000; // spin table
14
15 / {
16 #address-cells = <2>;
17 #size-cells = <2>;
18 model = "ibm,currituck";
19 compatible = "ibm,currituck";
20 dcr-parent = <&{/cpus/cpu@0}>;
21
22 aliases {
23 serial0 = &UART0;
24 };
25
26 cpus {
27 #address-cells = <1>;
28 #size-cells = <0>;
29
30 cpu@0 {
31 device_type = "cpu";
32 model = "PowerPC,476";
33 reg = <0>;
34 clock-frequency = <1600000000>; // 1.6 GHz
35 timebase-frequency = <100000000>; // 100Mhz
36 i-cache-line-size = <32>;
37 d-cache-line-size = <32>;
38 i-cache-size = <32768>;
39 d-cache-size = <32768>;
40 dcr-controller;
41 dcr-access-method = "native";
42 status = "okay";
43 };
44 cpu@1 {
45 device_type = "cpu";
46 model = "PowerPC,476";
47 reg = <1>;
48 clock-frequency = <1600000000>; // 1.6 GHz
49 timebase-frequency = <100000000>; // 100Mhz
50 i-cache-line-size = <32>;
51 d-cache-line-size = <32>;
52 i-cache-size = <32768>;
53 d-cache-size = <32768>;
54 dcr-controller;
55 dcr-access-method = "native";
56 status = "disabled";
57 enable-method = "spin-table";
58 cpu-release-addr = <0x0 0x01f00000>;
59 };
60 };
61
62 memory {
63 device_type = "memory";
64 reg = <0x0 0x0 0x0 0x0>; // filled in by zImage
65 };
66
67 MPIC: interrupt-controller {
68 compatible = "chrp,open-pic";
69 interrupt-controller;
70 dcr-reg = <0xffc00000 0x00040000>;
71 #address-cells = <0>;
72 #size-cells = <0>;
73 #interrupt-cells = <2>;
74
75 };
76
77 plb {
78 compatible = "ibm,plb6";
79 #address-cells = <2>;
80 #size-cells = <2>;
81 ranges;
82 clock-frequency = <200000000>; // 200Mhz
83
84 POB0: opb {
85 compatible = "ibm,opb-4xx", "ibm,opb";
86 #address-cells = <1>;
87 #size-cells = <1>;
88 /* Wish there was a nicer way of specifying a full
89 * 32-bit range
90 */
91 ranges = <0x00000000 0x00000200 0x00000000 0x80000000
92 0x80000000 0x00000200 0x80000000 0x80000000>;
93 clock-frequency = <100000000>;
94
95 UART0: serial@10000000 {
96 device_type = "serial";
97 compatible = "ns16750", "ns16550";
98 reg = <0x10000000 0x00000008>;
99 virtual-reg = <0xe1000000>;
100 clock-frequency = <1851851>; // PCIe refclk/MCGC0_CTL[UART]
101 current-speed = <115200>;
102 interrupt-parent = <&MPIC>;
103 interrupts = <34 2>;
104 };
105
106 FPGA0: fpga@50000000 {
107 compatible = "ibm,currituck-fpga";
108 reg = <0x50000000 0x4>;
109 };
110
111 IIC0: i2c@0 {
112 compatible = "ibm,iic-currituck", "ibm,iic";
113 reg = <0x0 0x00000014>;
114 interrupt-parent = <&MPIC>;
115 interrupts = <79 2>;
116 #address-cells = <1>;
117 #size-cells = <0>;
118 rtc@68 {
119 compatible = "st,m41t80", "m41st85";
120 reg = <0x68>;
121 };
122 };
123 };
124
125 PCIE0: pcie@10100000000 { // 4xGBIF1
126 device_type = "pci";
127 #interrupt-cells = <1>;
128 #size-cells = <2>;
129 #address-cells = <3>;
130 compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
131 primary;
132 port = <0x0>; /* port number */
133 reg = <0x00000101 0x00000000 0x0 0x10000000 /* Config space access */
134 0x00000100 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
135 dcr-reg = <0x80 0x20>;
136
137 // pci_space < pci_addr > < cpu_addr > < size >
138 ranges = <0x02000000 0x00000000 0x80000000 0x00000110 0x80000000 0x0 0x80000000
139 0x01000000 0x0 0x0 0x00000140 0x0 0x0 0x00010000>;
140
141 /* Inbound starting at 0 to memsize filled in by zImage */
142 dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
143
144 /* This drives busses 0 to 0xf */
145 bus-range = <0x0 0xf>;
146
147 /* Legacy interrupts (note the weird polarity, the bridge seems
148 * to invert PCIe legacy interrupts).
149 * We are de-swizzling here because the numbers are actually for
150 * port of the root complex virtual P2P bridge. But I want
151 * to avoid putting a node for it in the tree, so the numbers
152 * below are basically de-swizzled numbers.
153 * The real slot is on idsel 0, so the swizzling is 1:1
154 */
155 interrupt-map-mask = <0x0 0x0 0x0 0x7>;
156 interrupt-map = <
157 0x0 0x0 0x0 0x1 &MPIC 46 0x2 /* int A */
158 0x0 0x0 0x0 0x2 &MPIC 47 0x2 /* int B */
159 0x0 0x0 0x0 0x3 &MPIC 48 0x2 /* int C */
160 0x0 0x0 0x0 0x4 &MPIC 49 0x2 /* int D */>;
161 };
162
163 PCIE1: pcie@30100000000 { // 4xGBIF0
164 device_type = "pci";
165 #interrupt-cells = <1>;
166 #size-cells = <2>;
167 #address-cells = <3>;
168 compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
169 primary;
170 port = <0x1>; /* port number */
171 reg = <0x00000301 0x00000000 0x0 0x10000000 /* Config space access */
172 0x00000300 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
173 dcr-reg = <0x60 0x20>;
174
175 ranges = <0x02000000 0x00000000 0x80000000 0x00000310 0x80000000 0x0 0x80000000
176 0x01000000 0x0 0x0 0x00000340 0x0 0x0 0x00010000>;
177
178 /* Inbound starting at 0 to memsize filled in by zImage */
179 dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
180
181 /* This drives busses 0 to 0xf */
182 bus-range = <0x0 0xf>;
183
184 /* Legacy interrupts (note the weird polarity, the bridge seems
185 * to invert PCIe legacy interrupts).
186 * We are de-swizzling here because the numbers are actually for
187 * port of the root complex virtual P2P bridge. But I want
188 * to avoid putting a node for it in the tree, so the numbers
189 * below are basically de-swizzled numbers.
190 * The real slot is on idsel 0, so the swizzling is 1:1
191 */
192 interrupt-map-mask = <0x0 0x0 0x0 0x7>;
193 interrupt-map = <
194 0x0 0x0 0x0 0x1 &MPIC 38 0x2 /* int A */
195 0x0 0x0 0x0 0x2 &MPIC 39 0x2 /* int B */
196 0x0 0x0 0x0 0x3 &MPIC 40 0x2 /* int C */
197 0x0 0x0 0x0 0x4 &MPIC 41 0x2 /* int D */>;
198 };
199
200 PCIE2: pcie@38100000000 { // 2xGBIF0
201 device_type = "pci";
202 #interrupt-cells = <1>;
203 #size-cells = <2>;
204 #address-cells = <3>;
205 compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
206 primary;
207 port = <0x2>; /* port number */
208 reg = <0x00000381 0x00000000 0x0 0x10000000 /* Config space access */
209 0x00000380 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
210 dcr-reg = <0xA0 0x20>;
211
212 ranges = <0x02000000 0x00000000 0x80000000 0x00000390 0x80000000 0x0 0x80000000
213 0x01000000 0x0 0x0 0x000003C0 0x0 0x0 0x00010000>;
214
215 /* Inbound starting at 0 to memsize filled in by zImage */
216 dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
217
218 /* This drives busses 0 to 0xf */
219 bus-range = <0x0 0xf>;
220
221 /* Legacy interrupts (note the weird polarity, the bridge seems
222 * to invert PCIe legacy interrupts).
223 * We are de-swizzling here because the numbers are actually for
224 * port of the root complex virtual P2P bridge. But I want
225 * to avoid putting a node for it in the tree, so the numbers
226 * below are basically de-swizzled numbers.
227 * The real slot is on idsel 0, so the swizzling is 1:1
228 */
229 interrupt-map-mask = <0x0 0x0 0x0 0x7>;
230 interrupt-map = <
231 0x0 0x0 0x0 0x1 &MPIC 54 0x2 /* int A */
232 0x0 0x0 0x0 0x2 &MPIC 55 0x2 /* int B */
233 0x0 0x0 0x0 0x3 &MPIC 56 0x2 /* int C */
234 0x0 0x0 0x0 0x4 &MPIC 57 0x2 /* int D */>;
235 };
236
237 };
238
239 chosen {
240 stdout-path = &UART0;
241 };
242 };
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