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 power-domains: 31 maxItems: 1 32 33 in-ports: 34 $ref: /schemas/graph.yaml#/properties/ports 35 36 patternProperties: 37 '^port@[0-7]$': 38 description: Input connections from CoreSight Trace bus 39 $ref: /schemas/graph.yaml#/properties/port 40 41 out-ports: 42 $ref: /schemas/graph.yaml#/properties/ports 43 additionalProperties: false 44 45 properties: 46 port: 47 description: Output connection to CoreSight Trace bus 48 $ref: /schemas/graph.yaml#/properties/port 49 50required: 51 - compatible 52 - in-ports 53 - out-ports 54 55additionalProperties: false 56 57examples: 58 - | 59 funnel { 60 /* 61 * non-configurable replicators don't show up on the 62 * AMBA bus. As such no need to add "arm,primecell". 63 */ 64 compatible = "arm,coresight-static-funnel"; 65 66 out-ports { 67 port { 68 combo_funnel_out: endpoint { 69 remote-endpoint = <&top_funnel_in>; 70 }; 71 }; 72 }; 73 74 in-ports { 75 #address-cells = <1>; 76 #size-cells = <0>; 77 78 port@0 { 79 reg = <0>; 80 combo_funnel_in0: endpoint { 81 remote-endpoint = <&cluster0_etf_out>; 82 }; 83 }; 84 85 port@1 { 86 reg = <1>; 87 combo_funnel_in1: endpoint { 88 remote-endpoint = <&cluster1_etf_out>; 89 }; 90 }; 91 }; 92 }; 93... 94