0001 /dts-v1/;
0002
0003 / {
0004 #size-cells = <0x02>;
0005 #address-cells = <0x02>;
0006 model-name = "microwatt";
0007 compatible = "microwatt-soc";
0008
0009 aliases {
0010 serial0 = &UART0;
0011 };
0012
0013 reserved-memory {
0014 #size-cells = <0x02>;
0015 #address-cells = <0x02>;
0016 ranges;
0017 };
0018
0019 memory@0 {
0020 device_type = "memory";
0021 reg = <0x00000000 0x00000000 0x00000000 0x10000000>;
0022 };
0023
0024 cpus {
0025 #size-cells = <0x00>;
0026 #address-cells = <0x01>;
0027
0028 ibm,powerpc-cpu-features {
0029 display-name = "Microwatt";
0030 isa = <3000>;
0031 device_type = "cpu-features";
0032 compatible = "ibm,powerpc-cpu-features";
0033
0034 mmu-radix {
0035 isa = <3000>;
0036 usable-privilege = <2>;
0037 };
0038
0039 little-endian {
0040 isa = <2050>;
0041 usable-privilege = <3>;
0042 hwcap-bit-nr = <1>;
0043 };
0044
0045 cache-inhibited-large-page {
0046 isa = <2040>;
0047 usable-privilege = <2>;
0048 };
0049
0050 fixed-point-v3 {
0051 isa = <3000>;
0052 usable-privilege = <3>;
0053 };
0054
0055 no-execute {
0056 isa = <2010>;
0057 usable-privilege = <2>;
0058 };
0059
0060 floating-point {
0061 hwcap-bit-nr = <27>;
0062 isa = <0>;
0063 usable-privilege = <3>;
0064 };
0065 };
0066
0067 PowerPC,Microwatt@0 {
0068 i-cache-sets = <2>;
0069 ibm,dec-bits = <64>;
0070 reservation-granule-size = <64>;
0071 clock-frequency = <100000000>;
0072 timebase-frequency = <100000000>;
0073 i-tlb-sets = <1>;
0074 ibm,ppc-interrupt-server#s = <0>;
0075 i-cache-block-size = <64>;
0076 d-cache-block-size = <64>;
0077 d-cache-sets = <2>;
0078 i-tlb-size = <64>;
0079 cpu-version = <0x990000>;
0080 status = "okay";
0081 i-cache-size = <0x1000>;
0082 ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
0083 tlb-size = <0>;
0084 tlb-sets = <0>;
0085 device_type = "cpu";
0086 d-tlb-size = <128>;
0087 d-tlb-sets = <2>;
0088 reg = <0>;
0089 general-purpose;
0090 64-bit;
0091 d-cache-size = <0x1000>;
0092 ibm,chip-id = <0>;
0093 ibm,mmu-lpid-bits = <12>;
0094 ibm,mmu-pid-bits = <20>;
0095 };
0096 };
0097
0098 soc@c0000000 {
0099 compatible = "simple-bus";
0100 #address-cells = <1>;
0101 #size-cells = <1>;
0102 interrupt-parent = <&ICS>;
0103
0104 ranges = <0 0 0xc0000000 0x40000000>;
0105
0106 interrupt-controller@4000 {
0107 compatible = "openpower,xics-presentation", "ibm,ppc-xicp";
0108 ibm,interrupt-server-ranges = <0x0 0x1>;
0109 reg = <0x4000 0x100>;
0110 };
0111
0112 ICS: interrupt-controller@5000 {
0113 compatible = "openpower,xics-sources";
0114 interrupt-controller;
0115 interrupt-ranges = <0x10 0x10>;
0116 reg = <0x5000 0x100>;
0117 #address-cells = <0>;
0118 #size-cells = <0>;
0119 #interrupt-cells = <2>;
0120 };
0121
0122 UART0: serial@2000 {
0123 device_type = "serial";
0124 compatible = "ns16550";
0125 reg = <0x2000 0x8>;
0126 clock-frequency = <100000000>;
0127 current-speed = <115200>;
0128 reg-shift = <2>;
0129 fifo-size = <16>;
0130 interrupts = <0x10 0x1>;
0131 };
0132
0133 ethernet@8020000 {
0134 compatible = "litex,liteeth";
0135 reg = <0x8021000 0x100
0136 0x8020800 0x100
0137 0x8030000 0x2000>;
0138 reg-names = "mac", "mido", "buffer";
0139 litex,rx-slots = <2>;
0140 litex,tx-slots = <2>;
0141 litex,slot-size = <0x800>;
0142 interrupts = <0x11 0x1>;
0143 };
0144 };
0145
0146 chosen {
0147 bootargs = "";
0148 ibm,architecture-vec-5 = [19 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00
0149 00 00 00 00 00 00 00 00 40 00 40];
0150 stdout-path = &UART0;
0151 };
0152 };
