cpus.yaml

  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,mips34Kc
 37      - mips,mips4KEc
 38      - mips,mips4Kc
 39      - mips,mips74Kc
 40      - mti,interaptiv
 41      - mti,mips14KEc
 42      - mti,mips14Kc
 43      - mti,mips24KEc
 44
 45  reg:
 46    maxItems: 1
 47
 48  clocks:
 49    maxItems: 1
 50
 51  device_type: true
 52
 53allOf:
 54  - $ref: /schemas/opp/opp-v1.yaml#
 55  - if:
 56      properties:
 57        compatible:
 58          contains:
 59            enum:
 60              - ingenic,xburst-mxu1.0
 61              - ingenic,xburst-fpu1.0-mxu1.1
 62              - ingenic,xburst-fpu2.0-mxu2.0
 63              - ingenic,xburst2-fpu2.1-mxu2.1-smt
 64    then:
 65      required:
 66        - device_type
 67        - clocks
 68
 69required:
 70  - compatible
 71  - reg
 72
 73unevaluatedProperties: false
 74
 75examples:
 76  - |
 77    cpus {
 78      #size-cells = <0>;
 79      #address-cells = <1>;
 80
 81      cpu@0 {
 82        compatible = "mips,mips1004Kc";
 83        device_type = "cpu";
 84        reg = <0>;
 85      };
 86
 87      cpu@1 {
 88        compatible = "mips,mips1004Kc";
 89        device_type = "cpu";
 90        reg = <1>;
 91      };
 92    };
 93
 94  - |
 95    // Example 2 (Ingenic CPU)
 96    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
 97
 98    cpus {
 99      #address-cells = <1>;
100      #size-cells = <0>;
101
102      cpu@0 {
103        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
104        device_type = "cpu";
105        reg = <0>;
106
107        clocks = <&cgu JZ4780_CLK_CPU>;
108      };
109
110      cpu@1 {
111        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
112        device_type = "cpu";
113        reg = <1>;
114
115        clocks = <&cgu JZ4780_CLK_CORE1>;
116      };
117    };
118...