vexpress-config.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/arm/vexpress-config.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: ARM Versatile Express configuration bus bindings
    8 
    9 maintainers:
   10   - Andre Przywara <andre.przywara@arm.com>
   11 
   12 description:
   13   This is a system control register block, acting as a bridge to the
   14   platform's configuration bus via "system control" interface, addressing
   15   devices with site number, position in the board stack, config controller,
   16   function and device numbers - see motherboard's TRM for more details.
   17 
   18 properties:
   19   compatible:
   20     const: arm,vexpress,config-bus
   21 
   22   arm,vexpress,config-bridge:
   23     $ref: /schemas/types.yaml#/definitions/phandle
   24     description:
   25       Phandle to the sysreg node.
   26 
   27   muxfpga:
   28     type: object
   29     properties:
   30       compatible:
   31         const: arm,vexpress-muxfpga
   32 
   33       arm,vexpress-sysreg,func:
   34         description: FPGA specifier
   35         $ref: /schemas/types.yaml#/definitions/uint32-array
   36         items:
   37           - const: 7
   38           - description: device number
   39 
   40     additionalProperties: false
   41     required:
   42       - compatible
   43       - arm,vexpress-sysreg,func
   44 
   45   shutdown:
   46     type: object
   47     properties:
   48       compatible:
   49         const: arm,vexpress-shutdown
   50 
   51       arm,vexpress-sysreg,func:
   52         description: shutdown identifier
   53         $ref: /schemas/types.yaml#/definitions/uint32-array
   54         items:
   55           - const: 8
   56           - description: device number
   57 
   58     additionalProperties: false
   59     required:
   60       - compatible
   61       - arm,vexpress-sysreg,func
   62 
   63   reboot:
   64     type: object
   65     properties:
   66       compatible:
   67         const: arm,vexpress-reboot
   68 
   69       arm,vexpress-sysreg,func:
   70         description: reboot identifier
   71         $ref: /schemas/types.yaml#/definitions/uint32-array
   72         items:
   73           - const: 9
   74           - description: device number
   75 
   76     additionalProperties: false
   77     required:
   78       - compatible
   79       - arm,vexpress-sysreg,func
   80 
   81   dvimode:
   82     type: object
   83     properties:
   84       compatible:
   85         const: arm,vexpress-dvimode
   86 
   87       arm,vexpress-sysreg,func:
   88         description: DVI mode identifier
   89         $ref: /schemas/types.yaml#/definitions/uint32-array
   90         items:
   91           - const: 11
   92           - description: device number
   93 
   94     additionalProperties: false
   95     required:
   96       - compatible
   97       - arm,vexpress-sysreg,func
   98 
   99 additionalProperties: false
  100 
  101 required:
  102   - compatible
  103   - arm,vexpress,config-bridge
  104 
  105 patternProperties:
  106   'clk[0-9]*$':
  107     type: object
  108     description:
  109       clocks
  110 
  111     properties:
  112       compatible:
  113         const: arm,vexpress-osc
  114 
  115       arm,vexpress-sysreg,func:
  116         description: clock specifier
  117         $ref: /schemas/types.yaml#/definitions/uint32-array
  118         items:
  119           - const: 1
  120           - description: clock number
  121 
  122       freq-range:
  123         $ref: /schemas/types.yaml#/definitions/uint32-array
  124         items:
  125           - description: minimal clock frequency
  126           - description: maximum clock frequency
  127 
  128       "#clock-cells":
  129         const: 0
  130 
  131       clock-output-names:
  132         maxItems: 1
  133 
  134     additionalProperties: false
  135     required:
  136       - compatible
  137       - arm,vexpress-sysreg,func
  138       - "#clock-cells"
  139 
  140   "^volt-.+$":
  141     $ref: /schemas/regulator/regulator.yaml#
  142     properties:
  143       compatible:
  144         const: arm,vexpress-volt
  145 
  146       arm,vexpress-sysreg,func:
  147         description: regulator specifier
  148         $ref: /schemas/types.yaml#/definitions/uint32-array
  149         items:
  150           - const: 2
  151           - description: device number
  152 
  153       label:
  154         maxItems: 1
  155 
  156     unevaluatedProperties: false
  157     required:
  158       - compatible
  159       - arm,vexpress-sysreg,func
  160 
  161   "^amp-.+$":
  162     type: object
  163     properties:
  164       compatible:
  165         const: arm,vexpress-amp
  166 
  167       arm,vexpress-sysreg,func:
  168         description: current sensor identifier
  169         $ref: /schemas/types.yaml#/definitions/uint32-array
  170         items:
  171           - const: 3
  172           - description: device number
  173 
  174       label:
  175         maxItems: 1
  176 
  177     additionalProperties: false
  178     required:
  179       - compatible
  180       - arm,vexpress-sysreg,func
  181 
  182   "^temp-.+$":
  183     type: object
  184     properties:
  185       compatible:
  186         const: arm,vexpress-temp
  187 
  188       arm,vexpress-sysreg,func:
  189         description: temperature sensor identifier
  190         $ref: /schemas/types.yaml#/definitions/uint32-array
  191         items:
  192           - const: 4
  193           - description: device number
  194 
  195       label:
  196         maxItems: 1
  197 
  198     additionalProperties: false
  199     required:
  200       - compatible
  201       - arm,vexpress-sysreg,func
  202 
  203   "^reset[0-9]*$":
  204     type: object
  205     properties:
  206       compatible:
  207         const: arm,vexpress-reset
  208 
  209       arm,vexpress-sysreg,func:
  210         description: reset specifier
  211         $ref: /schemas/types.yaml#/definitions/uint32-array
  212         items:
  213           - const: 5
  214           - description: reset device number
  215 
  216     additionalProperties: false
  217     required:
  218       - compatible
  219       - arm,vexpress-sysreg,func
  220 
  221   "^power-.+$":
  222     type: object
  223     properties:
  224       compatible:
  225         const: arm,vexpress-power
  226 
  227       arm,vexpress-sysreg,func:
  228         description: power sensor identifier
  229         $ref: /schemas/types.yaml#/definitions/uint32-array
  230         items:
  231           - const: 12
  232           - description: device number
  233 
  234       label:
  235         maxItems: 1
  236 
  237     additionalProperties: false
  238     required:
  239       - compatible
  240       - arm,vexpress-sysreg,func
  241 
  242   "^energy(-.+)?$":
  243     type: object
  244     properties:
  245       compatible:
  246         const: arm,vexpress-energy
  247 
  248       arm,vexpress-sysreg,func:
  249         description: energy sensor identifier
  250         $ref: /schemas/types.yaml#/definitions/uint32-array
  251         oneOf:
  252           - items:
  253               - const: 13
  254               - description: device number
  255           - items:
  256               - const: 13
  257               - description: device number
  258               - const: 13
  259               - description: second device number
  260 
  261       label:
  262         maxItems: 1
  263 
  264     additionalProperties: false
  265     required:
  266       - compatible
  267       - arm,vexpress-sysreg,func
  268 
  269 examples:
  270   - |
  271     mcc {
  272         compatible = "arm,vexpress,config-bus";
  273         arm,vexpress,config-bridge = <&v2m_sysreg>;
  274 
  275         clk0 {
  276             compatible = "arm,vexpress-osc";
  277             arm,vexpress-sysreg,func = <1 0>;
  278             #clock-cells = <0>;
  279         };
  280 
  281         energy {
  282             compatible = "arm,vexpress-energy";
  283             arm,vexpress-sysreg,func = <13 0>, <13 1>;
  284         };
  285     };

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sys/contrib/device-tree/Bindings/arm/vexpress-config.yaml