renesas,rcar-canfd.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-canfd.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Renesas R-Car CAN FD Controller
    8 
    9 maintainers:
   10   - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
   11 
   12 allOf:
   13   - $ref: can-controller.yaml#
   14 
   15 properties:
   16   compatible:
   17     oneOf:
   18       - items:
   19           - enum:
   20               - renesas,r8a774a1-canfd     # RZ/G2M
   21               - renesas,r8a774b1-canfd     # RZ/G2N
   22               - renesas,r8a774c0-canfd     # RZ/G2E
   23               - renesas,r8a774e1-canfd     # RZ/G2H
   24               - renesas,r8a7795-canfd      # R-Car H3
   25               - renesas,r8a7796-canfd      # R-Car M3-W
   26               - renesas,r8a77961-canfd     # R-Car M3-W+
   27               - renesas,r8a77965-canfd     # R-Car M3-N
   28               - renesas,r8a77970-canfd     # R-Car V3M
   29               - renesas,r8a77980-canfd     # R-Car V3H
   30               - renesas,r8a77990-canfd     # R-Car E3
   31               - renesas,r8a77995-canfd     # R-Car D3
   32           - const: renesas,rcar-gen3-canfd # R-Car Gen3 and RZ/G2
   33 
   34       - items:
   35           - enum:
   36               - renesas,r9a07g043-canfd    # RZ/G2UL
   37               - renesas,r9a07g044-canfd    # RZ/G2{L,LC}
   38               - renesas,r9a07g054-canfd    # RZ/V2L
   39           - const: renesas,rzg2l-canfd     # RZ/G2L family
   40 
   41       - const: renesas,r8a779a0-canfd      # R-Car V3U
   42 
   43   reg:
   44     maxItems: 1
   45 
   46   interrupts: true
   47 
   48   clocks:
   49     maxItems: 3
   50 
   51   clock-names:
   52     items:
   53       - const: fck
   54       - const: canfd
   55       - const: can_clk
   56 
   57   power-domains:
   58     maxItems: 1
   59 
   60   resets: true
   61 
   62   renesas,no-can-fd:
   63     $ref: /schemas/types.yaml#/definitions/flag
   64     description:
   65       The controller can operate in either CAN FD only mode (default) or
   66       Classical CAN only mode.  The mode is global to both the channels.
   67       Specify this property to put the controller in Classical CAN only mode.
   68 
   69   assigned-clocks:
   70     description:
   71       Reference to the CANFD clock.  The CANFD clock is a div6 clock and can be
   72       used by both CAN (if present) and CAN FD controllers at the same time.
   73       It needs to be scaled to maximum frequency if any of these controllers
   74       use it.
   75 
   76   assigned-clock-rates:
   77     description: Maximum frequency of the CANFD clock.
   78 
   79 patternProperties:
   80   "^channel[01]$":
   81     type: object
   82     description:
   83       The controller supports two channels and each is represented as a child
   84       node.  Each child node supports the "status" property only, which
   85       is used to enable/disable the respective channel.
   86 
   87 required:
   88   - compatible
   89   - reg
   90   - interrupts
   91   - interrupt-names
   92   - clocks
   93   - clock-names
   94   - power-domains
   95   - resets
   96   - assigned-clocks
   97   - assigned-clock-rates
   98   - channel0
   99   - channel1
  100 
  101 if:
  102   properties:
  103     compatible:
  104       contains:
  105         enum:
  106           - renesas,rzg2l-canfd
  107 then:
  108   properties:
  109     interrupts:
  110       items:
  111         - description: CAN global error interrupt
  112         - description: CAN receive FIFO interrupt
  113         - description: CAN0 error interrupt
  114         - description: CAN0 transmit interrupt
  115         - description: CAN0 transmit/receive FIFO receive completion interrupt
  116         - description: CAN1 error interrupt
  117         - description: CAN1 transmit interrupt
  118         - description: CAN1 transmit/receive FIFO receive completion interrupt
  119 
  120     interrupt-names:
  121       items:
  122         - const: g_err
  123         - const: g_recc
  124         - const: ch0_err
  125         - const: ch0_rec
  126         - const: ch0_trx
  127         - const: ch1_err
  128         - const: ch1_rec
  129         - const: ch1_trx
  130 
  131     resets:
  132       maxItems: 2
  133 
  134     reset-names:
  135       items:
  136         - const: rstp_n
  137         - const: rstc_n
  138 
  139   required:
  140     - reset-names
  141 else:
  142   properties:
  143     interrupts:
  144       items:
  145         - description: Channel interrupt
  146         - description: Global interrupt
  147 
  148     interrupt-names:
  149       items:
  150         - const: ch_int
  151         - const: g_int
  152 
  153     resets:
  154       maxItems: 1
  155 
  156 unevaluatedProperties: false
  157 
  158 examples:
  159   - |
  160     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
  161     #include <dt-bindings/interrupt-controller/arm-gic.h>
  162     #include <dt-bindings/power/r8a7795-sysc.h>
  163 
  164     canfd: can@e66c0000 {
  165             compatible = "renesas,r8a7795-canfd",
  166                          "renesas,rcar-gen3-canfd";
  167             reg = <0xe66c0000 0x8000>;
  168             interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
  169                          <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
  170             interrupt-names = "ch_int", "g_int";
  171             clocks = <&cpg CPG_MOD 914>,
  172                      <&cpg CPG_CORE R8A7795_CLK_CANFD>,
  173                      <&can_clk>;
  174             clock-names = "fck", "canfd", "can_clk";
  175             assigned-clocks = <&cpg CPG_CORE R8A7795_CLK_CANFD>;
  176             assigned-clock-rates = <40000000>;
  177             power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
  178             resets = <&cpg 914>;
  179 
  180             channel0 {
  181             };
  182 
  183             channel1 {
  184             };
  185     };

Cache object: a656668d3580ed1b203a687981d2d876

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

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