arm,coresight-dynamic-funnel.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/arm,coresight-dynamic-funnel.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Arm CoreSight Programmable Trace Bus Funnel
    8 
    9 maintainers:
   10   - Mathieu Poirier <mathieu.poirier@linaro.org>
   11   - Mike Leach <mike.leach@linaro.org>
   12   - Leo Yan <leo.yan@linaro.org>
   13   - Suzuki K Poulose <suzuki.poulose@arm.com>
   14 
   15 description: |
   16   CoreSight components are compliant with the ARM CoreSight architecture
   17   specification and can be connected in various topologies to suit a particular
   18   SoCs tracing needs. These trace components can generally be classified as
   19   sinks, links and sources. Trace data produced by one or more sources flows
   20   through the intermediate links connecting the source to the currently selected
   21   sink.
   22 
   23   The Coresight funnel merges 2-8 trace sources into a single trace
   24   stream with programmable enable and priority of input ports.
   25 
   26 # Need a custom select here or 'arm,primecell' will match on lots of nodes
   27 select:
   28   properties:
   29     compatible:
   30       contains:
   31         const: arm,coresight-dynamic-funnel
   32   required:
   33     - compatible
   34 
   35 allOf:
   36   - $ref: /schemas/arm/primecell.yaml#
   37 
   38 properties:
   39   compatible:
   40     items:
   41       - const: arm,coresight-dynamic-funnel
   42       - const: arm,primecell
   43 
   44   reg:
   45     maxItems: 1
   46 
   47   clocks:
   48     minItems: 1
   49     maxItems: 2
   50 
   51   clock-names:
   52     minItems: 1
   53     items:
   54       - const: apb_pclk
   55       - const: atclk
   56 
   57   in-ports:
   58     $ref: /schemas/graph.yaml#/properties/ports
   59 
   60     patternProperties:
   61       '^port(@[0-7])?$':
   62         description: Input connections from CoreSight Trace bus
   63         $ref: /schemas/graph.yaml#/properties/port
   64 
   65   out-ports:
   66     $ref: /schemas/graph.yaml#/properties/ports
   67     additionalProperties: false
   68 
   69     properties:
   70       port:
   71         description: Output connection to CoreSight Trace bus
   72         $ref: /schemas/graph.yaml#/properties/port
   73 
   74 required:
   75   - compatible
   76   - reg
   77   - clocks
   78   - clock-names
   79   - in-ports
   80   - out-ports
   81 
   82 unevaluatedProperties: false
   83 
   84 examples:
   85   - |
   86     funnel@20040000 {
   87         compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
   88         reg = <0x20040000 0x1000>;
   89 
   90         clocks = <&oscclk6a>;
   91         clock-names = "apb_pclk";
   92         out-ports {
   93             port {
   94                 funnel_out_port0: endpoint {
   95                     remote-endpoint = <&replicator_in_port0>;
   96                 };
   97             };
   98         };
   99 
  100         in-ports {
  101             #address-cells = <1>;
  102             #size-cells = <0>;
  103 
  104             port@0 {
  105                 reg = <0>;
  106                 funnel_in_port0: endpoint {
  107                     remote-endpoint = <&ptm0_out_port>;
  108                 };
  109             };
  110 
  111             port@1 {
  112                 reg = <1>;
  113                 funnel_in_port1: endpoint {
  114                     remote-endpoint = <&ptm1_out_port>;
  115                 };
  116             };
  117 
  118             port@2 {
  119                 reg = <2>;
  120                 funnel_in_port2: endpoint {
  121                     remote-endpoint = <&etm0_out_port>;
  122                 };
  123             };
  124         };
  125     };
  126 ...

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sys/contrib/device-tree/Bindings/arm/arm,coresight-dynamic-funnel.yaml