xref: /linux/Documentation/devicetree/bindings/mips/cpus.yaml (revision f9bff0e31881d03badf191d3b0005839391f5f2b) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mips/cpus.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MIPS CPUs
8
9maintainers:
10  - Thomas Bogendoerfer <tsbogend@alpha.franken.de>
11  - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
12
13description: |
14  The device tree allows to describe the layout of CPUs in a system through
15  the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
16  defining properties for every CPU.
17
18properties:
19  compatible:
20    enum:
21      - brcm,bmips3300
22      - brcm,bmips4350
23      - brcm,bmips4380
24      - brcm,bmips5000
25      - brcm,bmips5200
26      - ingenic,xburst-mxu1.0
27      - ingenic,xburst-fpu1.0-mxu1.1
28      - ingenic,xburst-fpu2.0-mxu2.0
29      - ingenic,xburst2-fpu2.1-mxu2.1-smt
30      - loongson,gs264
31      - mips,m14Kc
32      - mips,mips4Kc
33      - mips,mips4KEc
34      - mips,mips24Kc
35      - mips,mips24KEc
36      - mips,mips74Kc
37      - mips,mips1004Kc
38      - mti,interaptiv
39      - mti,mips24KEc
40      - mti,mips14KEc
41      - mti,mips14Kc
42
43  reg:
44    maxItems: 1
45
46  clocks:
47    maxItems: 1
48
49  device_type: true
50
51allOf:
52  - if:
53      properties:
54        compatible:
55          contains:
56            enum:
57              - ingenic,xburst-mxu1.0
58              - ingenic,xburst-fpu1.0-mxu1.1
59              - ingenic,xburst-fpu2.0-mxu2.0
60              - ingenic,xburst2-fpu2.1-mxu2.1-smt
61    then:
62      required:
63        - device_type
64        - clocks
65
66required:
67  - compatible
68  - reg
69
70additionalProperties: false
71
72examples:
73  - |
74    cpus {
75      #size-cells = <0>;
76      #address-cells = <1>;
77
78      cpu@0 {
79        compatible = "mips,mips1004Kc";
80        device_type = "cpu";
81        reg = <0>;
82      };
83
84      cpu@1 {
85        compatible = "mips,mips1004Kc";
86        device_type = "cpu";
87        reg = <1>;
88      };
89    };
90
91  - |
92    // Example 2 (Ingenic CPU)
93    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
94
95    cpus {
96      #address-cells = <1>;
97      #size-cells = <0>;
98
99      cpu@0 {
100        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
101        device_type = "cpu";
102        reg = <0>;
103
104        clocks = <&cgu JZ4780_CLK_CPU>;
105      };
106
107      cpu@1 {
108        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
109        device_type = "cpu";
110        reg = <1>;
111
112        clocks = <&cgu JZ4780_CLK_CORE1>;
113      };
114    };
115...
116