1 /dts-v1/;
2
3 / {
4 #size-cells = <0x02>;
5 #address-cells = <0x02>;
6 model-name = "microwatt";
7 compatible = "microwatt-soc";
8
9 aliases {
10 serial0 = &UART0;
11 };
12
13 reserved-memory {
14 #size-cells = <0x02>;
15 #address-cells = <0x02>;
16 ranges;
17 };
18
19 memory@0 {
20 device_type = "memory";
21 reg = <0x00000000 0x00000000 0x00000000 0x10000000>;
22 };
23
24 clocks {
25 sys_clk: litex_sys_clk {
26 #clock-cells = <0>;
27 compatible = "fixed-clock";
28 clock-frequency = <100000000>;
29 };
30 };
31
32 cpus {
33 #size-cells = <0x00>;
34 #address-cells = <0x01>;
35
36 ibm,powerpc-cpu-features {
37 display-name = "Microwatt";
38 isa = <3000>;
39 device_type = "cpu-features";
40 compatible = "ibm,powerpc-cpu-features";
41
42 mmu-radix {
43 isa = <3000>;
44 usable-privilege = <2>;
45 };
46
47 little-endian {
48 isa = <2050>;
49 usable-privilege = <3>;
50 hwcap-bit-nr = <1>;
51 };
52
53 cache-inhibited-large-page {
54 isa = <2040>;
55 usable-privilege = <2>;
56 };
57
58 fixed-point-v3 {
59 isa = <3000>;
60 usable-privilege = <3>;
61 };
62
63 no-execute {
64 isa = <2010>;
65 usable-privilege = <2>;
66 };
67
68 floating-point {
69 hwcap-bit-nr = <27>;
70 isa = <0>;
71 usable-privilege = <3>;
72 };
73 };
74
75 PowerPC,Microwatt@0 {
76 i-cache-sets = <2>;
77 ibm,dec-bits = <64>;
78 reservation-granule-size = <64>;
79 clock-frequency = <100000000>;
80 timebase-frequency = <100000000>;
81 i-tlb-sets = <1>;
82 ibm,ppc-interrupt-server#s = <0>;
83 i-cache-block-size = <64>;
84 d-cache-block-size = <64>;
85 d-cache-sets = <2>;
86 i-tlb-size = <64>;
87 cpu-version = <0x990000>;
88 status = "okay";
89 i-cache-size = <0x1000>;
90 ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
91 tlb-size = <0>;
92 tlb-sets = <0>;
93 device_type = "cpu";
94 d-tlb-size = <128>;
95 d-tlb-sets = <2>;
96 reg = <0>;
97 general-purpose;
98 64-bit;
99 d-cache-size = <0x1000>;
100 ibm,chip-id = <0>;
101 ibm,mmu-lpid-bits = <12>;
102 ibm,mmu-pid-bits = <20>;
103 };
104 };
105
106 soc@c0000000 {
107 compatible = "simple-bus";
108 #address-cells = <1>;
109 #size-cells = <1>;
110 interrupt-parent = <&ICS>;
111
112 ranges = <0 0 0xc0000000 0x40000000>;
113
114 interrupt-controller@4000 {
115 compatible = "openpower,xics-presentation", "ibm,ppc-xicp";
116 ibm,interrupt-server-ranges = <0x0 0x1>;
117 reg = <0x4000 0x100>;
118 };
119
120 ICS: interrupt-controller@5000 {
121 compatible = "openpower,xics-sources";
122 interrupt-controller;
123 interrupt-ranges = <0x10 0x10>;
124 reg = <0x5000 0x100>;
125 #address-cells = <0>;
126 #size-cells = <0>;
127 #interrupt-cells = <2>;
128 };
129
130 UART0: serial@2000 {
131 device_type = "serial";
132 compatible = "ns16550";
133 reg = <0x2000 0x8>;
134 clock-frequency = <100000000>;
135 current-speed = <115200>;
136 reg-shift = <2>;
137 fifo-size = <16>;
138 interrupts = <0x10 0x1>;
139 };
140
141 ethernet@8020000 {
142 compatible = "litex,liteeth";
143 reg = <0x8021000 0x100
144 0x8020800 0x100
145 0x8030000 0x2000>;
146 reg-names = "mac", "mido", "buffer";
147 litex,rx-slots = <2>;
148 litex,tx-slots = <2>;
149 litex,slot-size = <0x800>;
150 interrupts = <0x11 0x1>;
151 };
152
153 mmc@8040000 {
154 compatible = "litex,mmc";
155 reg = <0x8042800 0x800
156 0x8041000 0x800
157 0x8040800 0x800
158 0x8042000 0x800
159 0x8041800 0x800>;
160 reg-names = "phy", "core", "reader", "writer", "irq";
161 bus-width = <4>;
162 interrupts = <0x13 1>;
163 cap-sd-highspeed;
164 clocks = <&sys_clk>;
165 };
166 };
167
168 chosen {
169 bootargs = "";
170 ibm,architecture-vec-5 = [19 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00
171 00 00 00 00 00 00 00 00 40 00 40];
172 stdout-path = &UART0;
173 };
174 };
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