diff options
Diffstat (limited to 'Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml new file mode 100644 index 000000000000..a34d8583830c --- /dev/null +++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/arm,coresight-static-replicator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm CoreSight Static Trace Bus Replicator + +maintainers: + - Mathieu Poirier <mathieu.poirier@linaro.org> + - Mike Leach <mike.leach@linaro.org> + - Leo Yan <leo.yan@linaro.org> + - Suzuki K Poulose <suzuki.poulose@arm.com> + +description: | + CoreSight components are compliant with the ARM CoreSight architecture + specification and can be connected in various topologies to suit a particular + SoCs tracing needs. These trace components can generally be classified as + sinks, links and sources. Trace data produced by one or more sources flows + through the intermediate links connecting the source to the currently selected + sink. + + The Coresight replicator splits a single trace stream into two trace streams + for systems that have more than one trace sink component. + +properties: + compatible: + const: arm,coresight-static-replicator + + in-ports: + $ref: /schemas/graph.yaml#/properties/ports + additionalProperties: false + + properties: + port: + description: Input connection from CoreSight Trace bus + $ref: /schemas/graph.yaml#/properties/port + + out-ports: + $ref: /schemas/graph.yaml#/properties/ports + + patternProperties: + '^port@[01]$': + description: Output connections to CoreSight Trace bus + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - in-ports + - out-ports + +additionalProperties: false + +examples: + - | + replicator { + /* + * non-configurable replicators don't show up on the + * AMBA bus. As such no need to add "arm,primecell". + */ + compatible = "arm,coresight-static-replicator"; + + out-ports { + #address-cells = <1>; + #size-cells = <0>; + + /* replicator output ports */ + port@0 { + reg = <0>; + replicator_out_port0: endpoint { + remote-endpoint = <&etb_in_port>; + }; + }; + + port@1 { + reg = <1>; + replicator_out_port1: endpoint { + remote-endpoint = <&tpiu_in_port>; + }; + }; + }; + + in-ports { + port { + replicator_in_port0: endpoint { + remote-endpoint = <&funnel_out_port0>; + }; + }; + }; + }; +... |