tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/dts-v1/;
2#include <dt-bindings/gpio/gpio.h>
3
4/ {
5 #size-cells = <0x02>;
6 #address-cells = <0x02>;
7 model = "microwatt";
8 compatible = "microwatt-soc";
9
10 aliases {
11 serial0 = &UART0;
12 ethernet = &enet0;
13 };
14
15 reserved-memory {
16 #size-cells = <0x02>;
17 #address-cells = <0x02>;
18 ranges;
19 };
20
21 memory@0 {
22 device_type = "memory";
23 reg = <0x00000000 0x00000000 0x00000000 0x10000000>;
24 };
25
26 clocks {
27 sys_clk: litex_sys_clk {
28 #clock-cells = <0>;
29 compatible = "fixed-clock";
30 clock-frequency = <100000000>;
31 };
32 };
33
34 cpus {
35 #size-cells = <0x00>;
36 #address-cells = <0x01>;
37
38 ibm,powerpc-cpu-features {
39 display-name = "Microwatt";
40 isa = <3100>;
41 device_type = "cpu-features";
42 compatible = "ibm,powerpc-cpu-features";
43
44 mmu-radix {
45 isa = <3000>;
46 usable-privilege = <6>;
47 os-support = <0>;
48 };
49
50 little-endian {
51 isa = <0>;
52 usable-privilege = <7>;
53 os-support = <0>;
54 hwcap-bit-nr = <1>;
55 };
56
57 cache-inhibited-large-page {
58 isa = <0>;
59 usable-privilege = <6>;
60 os-support = <0>;
61 };
62
63 fixed-point-v3 {
64 isa = <3000>;
65 usable-privilege = <7>;
66 };
67
68 no-execute {
69 isa = <0x00>;
70 usable-privilege = <2>;
71 os-support = <0>;
72 };
73
74 floating-point {
75 hfscr-bit-nr = <0>;
76 hwcap-bit-nr = <27>;
77 isa = <0>;
78 usable-privilege = <7>;
79 hv-support = <1>;
80 os-support = <0>;
81 };
82
83 prefixed-instructions {
84 hfscr-bit-nr = <13>;
85 fscr-bit-nr = <13>;
86 isa = <3010>;
87 usable-privilege = <7>;
88 os-support = <1>;
89 hv-support = <1>;
90 };
91
92 tar {
93 hfscr-bit-nr = <8>;
94 fscr-bit-nr = <8>;
95 isa = <2070>;
96 usable-privilege = <7>;
97 os-support = <1>;
98 hv-support = <1>;
99 hwcap-bit-nr = <58>;
100 };
101
102 control-register {
103 isa = <0>;
104 usable-privilege = <7>;
105 };
106
107 system-call-vectored {
108 isa = <3000>;
109 usable-privilege = <7>;
110 os-support = <1>;
111 fscr-bit-nr = <12>;
112 hwcap-bit-nr = <52>;
113 };
114 };
115
116 PowerPC,Microwatt@0 {
117 i-cache-sets = <2>;
118 ibm,dec-bits = <64>;
119 reservation-granule-size = <64>;
120 clock-frequency = <100000000>;
121 timebase-frequency = <100000000>;
122 i-tlb-sets = <1>;
123 ibm,ppc-interrupt-server#s = <0>;
124 i-cache-block-size = <64>;
125 d-cache-block-size = <64>;
126 d-cache-sets = <2>;
127 i-tlb-size = <64>;
128 cpu-version = <0x990000>;
129 status = "okay";
130 i-cache-size = <0x1000>;
131 ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
132 tlb-size = <0>;
133 tlb-sets = <0>;
134 device_type = "cpu";
135 d-tlb-size = <128>;
136 d-tlb-sets = <2>;
137 reg = <0>;
138 general-purpose;
139 64-bit;
140 d-cache-size = <0x1000>;
141 ibm,chip-id = <0>;
142 ibm,mmu-lpid-bits = <12>;
143 ibm,mmu-pid-bits = <20>;
144 };
145
146 PowerPC,Microwatt@1 {
147 i-cache-sets = <2>;
148 ibm,dec-bits = <64>;
149 reservation-granule-size = <64>;
150 clock-frequency = <100000000>;
151 timebase-frequency = <100000000>;
152 i-tlb-sets = <1>;
153 ibm,ppc-interrupt-server#s = <1>;
154 i-cache-block-size = <64>;
155 d-cache-block-size = <64>;
156 d-cache-sets = <2>;
157 i-tlb-size = <64>;
158 cpu-version = <0x990000>;
159 status = "okay";
160 i-cache-size = <0x1000>;
161 ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
162 tlb-size = <0>;
163 tlb-sets = <0>;
164 device_type = "cpu";
165 d-tlb-size = <128>;
166 d-tlb-sets = <2>;
167 reg = <1>;
168 general-purpose;
169 64-bit;
170 d-cache-size = <0x1000>;
171 ibm,chip-id = <0>;
172 ibm,mmu-lpid-bits = <12>;
173 ibm,mmu-pid-bits = <20>;
174 };
175 };
176
177 soc@c0000000 {
178 compatible = "simple-bus";
179 #address-cells = <1>;
180 #size-cells = <1>;
181 interrupt-parent = <&ICS>;
182
183 ranges = <0 0 0xc0000000 0x40000000>;
184
185 interrupt-controller@4000 {
186 compatible = "openpower,xics-presentation", "ibm,ppc-xicp";
187 ibm,interrupt-server-ranges = <0x0 0x2>;
188 reg = <0x4000 0x10 0x4010 0x10>;
189 };
190
191 ICS: interrupt-controller@5000 {
192 compatible = "openpower,xics-sources";
193 interrupt-controller;
194 interrupt-ranges = <0x10 0x10>;
195 reg = <0x5000 0x100>;
196 #address-cells = <0>;
197 #size-cells = <0>;
198 #interrupt-cells = <2>;
199 };
200
201 UART0: serial@2000 {
202 device_type = "serial";
203 compatible = "ns16550";
204 reg = <0x2000 0x8>;
205 clock-frequency = <100000000>;
206 current-speed = <115200>;
207 reg-shift = <2>;
208 fifo-size = <16>;
209 interrupts = <0x10 0x1>;
210 };
211
212 gpio: gpio@7000 {
213 device_type = "gpio";
214 compatible = "faraday,ftgpio010";
215 gpio-controller;
216 #gpio-cells = <2>;
217 reg = <0x7000 0x80>;
218 interrupts = <0x14 1>;
219 interrupt-controller;
220 #interrupt-cells = <2>;
221 };
222
223 enet0: ethernet@8020000 {
224 compatible = "litex,liteeth";
225 reg = <0x8021000 0x100
226 0x8020800 0x100
227 0x8030000 0x2000>;
228 reg-names = "mac", "mido", "buffer";
229 litex,rx-slots = <2>;
230 litex,tx-slots = <2>;
231 litex,slot-size = <0x800>;
232 interrupts = <0x11 0x1>;
233 };
234
235 mmc@8040000 {
236 compatible = "litex,mmc";
237 reg = <0x8042800 0x800
238 0x8041000 0x800
239 0x8040800 0x800
240 0x8042000 0x800
241 0x8041800 0x800>;
242 reg-names = "phy", "core", "reader", "writer", "irq";
243 bus-width = <4>;
244 interrupts = <0x13 1>;
245 clocks = <&sys_clk>;
246 };
247 };
248
249 chosen {
250 bootargs = "";
251 ibm,architecture-vec-5 = [19 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00
252 00 00 00 00 00 00 00 00 40 00 40];
253 stdout-path = &UART0;
254 };
255};