renesas,rcar-can.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/net/can/renesas,rcar-can.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Renesas R-Car CAN Controller
    8 
    9 maintainers:
   10   - Sergei Shtylyov <sergei.shtylyov@gmail.com>
   11 
   12 properties:
   13   compatible:
   14     oneOf:
   15       - items:
   16           - enum:
   17               - renesas,can-r8a7778      # R-Car M1-A
   18               - renesas,can-r8a7779      # R-Car H1
   19           - const: renesas,rcar-gen1-can # R-Car Gen1
   20 
   21       - items:
   22           - enum:
   23               - renesas,can-r8a7742      # RZ/G1H
   24               - renesas,can-r8a7743      # RZ/G1M
   25               - renesas,can-r8a7744      # RZ/G1N
   26               - renesas,can-r8a7745      # RZ/G1E
   27               - renesas,can-r8a77470     # RZ/G1C
   28               - renesas,can-r8a7790      # R-Car H2
   29               - renesas,can-r8a7791      # R-Car M2-W
   30               - renesas,can-r8a7792      # R-Car V2H
   31               - renesas,can-r8a7793      # R-Car M2-N
   32               - renesas,can-r8a7794      # R-Car E2
   33           - const: renesas,rcar-gen2-can # R-Car Gen2 and RZ/G1
   34 
   35       - items:
   36           - enum:
   37               - renesas,can-r8a774a1     # RZ/G2M
   38               - renesas,can-r8a774b1     # RZ/G2N
   39               - renesas,can-r8a774c0     # RZ/G2E
   40               - renesas,can-r8a774e1     # RZ/G2H
   41               - renesas,can-r8a7795      # R-Car H3
   42               - renesas,can-r8a7796      # R-Car M3-W
   43               - renesas,can-r8a77961     # R-Car M3-W+
   44               - renesas,can-r8a77965     # R-Car M3-N
   45               - renesas,can-r8a77990     # R-Car E3
   46               - renesas,can-r8a77995     # R-Car D3
   47           - const: renesas,rcar-gen3-can # R-Car Gen3 and RZ/G2
   48 
   49   reg:
   50     maxItems: 1
   51 
   52   interrupts:
   53     maxItems: 1
   54 
   55   clocks:
   56     maxItems: 3
   57 
   58   clock-names:
   59     items:
   60       - const: clkp1
   61       - const: clkp2
   62       - const: can_clk
   63 
   64   power-domains:
   65     maxItems: 1
   66 
   67   resets:
   68     maxItems: 1
   69 
   70   renesas,can-clock-select:
   71     $ref: /schemas/types.yaml#/definitions/uint32
   72     enum: [ 0, 1, 3 ]
   73     default: 0
   74     description: |
   75       R-Car CAN Clock Source Select.  Valid values are:
   76         <0x0> (default) : Peripheral clock (clkp1)
   77         <0x1> : Peripheral clock (clkp2)
   78         <0x3> : External input clock
   79 
   80   assigned-clocks:
   81     description:
   82       Reference to the clkp2 (CANFD) clock.
   83       On R-Car Gen3 and RZ/G2 SoCs, "clkp2" is the CANFD clock.  This is a div6
   84       clock and can be used by both CAN and CAN FD controllers at the same
   85       time.  It needs to be scaled to maximum frequency if any of these
   86       controllers use it.
   87 
   88   assigned-clock-rates:
   89     description: Maximum frequency of the CANFD clock.
   90 
   91 required:
   92   - compatible
   93   - reg
   94   - interrupts
   95   - clocks
   96   - clock-names
   97   - power-domains
   98 
   99 allOf:
  100   - $ref: can-controller.yaml#
  101 
  102   - if:
  103       not:
  104         properties:
  105           compatible:
  106             contains:
  107               const: renesas,rcar-gen1-can
  108     then:
  109       required:
  110         - resets
  111 
  112   - if:
  113       properties:
  114         compatible:
  115           contains:
  116             const: renesas,rcar-gen3-can
  117     then:
  118       required:
  119         - assigned-clocks
  120         - assigned-clock-rates
  121 
  122 unevaluatedProperties: false
  123 
  124 examples:
  125   - |
  126     #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
  127     #include <dt-bindings/interrupt-controller/arm-gic.h>
  128     #include <dt-bindings/power/r8a7791-sysc.h>
  129 
  130     can0: can@e6e80000 {
  131             compatible = "renesas,can-r8a7791", "renesas,rcar-gen2-can";
  132             reg = <0xe6e80000 0x1000>;
  133             interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
  134             clocks = <&cpg CPG_MOD 916>,
  135                      <&cpg CPG_CORE R8A7791_CLK_RCAN>, <&can_clk>;
  136             clock-names = "clkp1", "clkp2", "can_clk";
  137             power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
  138             resets = <&cpg 916>;
  139     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/net/can/renesas,rcar-can.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/can/renesas,rcar-can.yaml