xref: /linux/Documentation/devicetree/bindings/mips/cpus.yaml (revision 79790b6818e96c58fe2bffee1b418c16e64e7b80) 
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      - img,i6500
27      - ingenic,xburst-fpu1.0-mxu1.1
28      - ingenic,xburst-fpu2.0-mxu2.0
29      - ingenic,xburst-mxu1.0
30      - ingenic,xburst2-fpu2.1-mxu2.1-smt
31      - loongson,gs264
32      - mips,m14Kc
33      - mips,mips1004Kc
34      - mips,mips24KEc
35      - mips,mips24Kc
36      - mips,mips4KEc
37      - mips,mips4Kc
38      - mips,mips74Kc
39      - mti,interaptiv
40      - mti,mips14KEc
41      - mti,mips14Kc
42      - mti,mips24KEc
43
44  reg:
45    maxItems: 1
46
47  clocks:
48    maxItems: 1
49
50  device_type: true
51
52allOf:
53  - if:
54      properties:
55        compatible:
56          contains:
57            enum:
58              - ingenic,xburst-mxu1.0
59              - ingenic,xburst-fpu1.0-mxu1.1
60              - ingenic,xburst-fpu2.0-mxu2.0
61              - ingenic,xburst2-fpu2.1-mxu2.1-smt
62    then:
63      required:
64        - device_type
65        - clocks
66
67required:
68  - compatible
69  - reg
70
71additionalProperties: false
72
73examples:
74  - |
75    cpus {
76      #size-cells = <0>;
77      #address-cells = <1>;
78
79      cpu@0 {
80        compatible = "mips,mips1004Kc";
81        device_type = "cpu";
82        reg = <0>;
83      };
84
85      cpu@1 {
86        compatible = "mips,mips1004Kc";
87        device_type = "cpu";
88        reg = <1>;
89      };
90    };
91
92  - |
93    // Example 2 (Ingenic CPU)
94    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
95
96    cpus {
97      #address-cells = <1>;
98      #size-cells = <0>;
99
100      cpu@0 {
101        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
102        device_type = "cpu";
103        reg = <0>;
104
105        clocks = <&cgu JZ4780_CLK_CPU>;
106      };
107
108      cpu@1 {
109        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
110        device_type = "cpu";
111        reg = <1>;
112
113        clocks = <&cgu JZ4780_CLK_CORE1>;
114      };
115    };
116...
117