1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/arm/arm,coresight-static-funnel.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Arm CoreSight Static Trace Bus Funnel 8 9maintainers: 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 15description: | 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 static funnel merges 2-8 trace sources into a single trace 24 stream. 25 26properties: 27 compatible: 28 const: arm,coresight-static-funnel 29 30 in-ports: 31 $ref: /schemas/graph.yaml#/properties/ports 32 33 patternProperties: 34 '^port@[0-7]$': 35 description: Input connections from CoreSight Trace bus 36 $ref: /schemas/graph.yaml#/properties/port 37 38 out-ports: 39 $ref: /schemas/graph.yaml#/properties/ports 40 additionalProperties: false 41 42 properties: 43 port: 44 description: Output connection to CoreSight Trace bus 45 $ref: /schemas/graph.yaml#/properties/port 46 47required: 48 - compatible 49 - in-ports 50 - out-ports 51 52additionalProperties: false 53 54examples: 55 - | 56 funnel { 57 /* 58 * non-configurable replicators don't show up on the 59 * AMBA bus. As such no need to add "arm,primecell". 60 */ 61 compatible = "arm,coresight-static-funnel"; 62 63 out-ports { 64 port { 65 combo_funnel_out: endpoint { 66 remote-endpoint = <&top_funnel_in>; 67 }; 68 }; 69 }; 70 71 in-ports { 72 #address-cells = <1>; 73 #size-cells = <0>; 74 75 port@0 { 76 reg = <0>; 77 combo_funnel_in0: endpoint { 78 remote-endpoint = <&cluster0_etf_out>; 79 }; 80 }; 81 82 port@1 { 83 reg = <1>; 84 combo_funnel_in1: endpoint { 85 remote-endpoint = <&cluster1_etf_out>; 86 }; 87 }; 88 }; 89 }; 90... 91