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|
# 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
power-domains:
maxItems: 1
clocks:
minItems: 1
maxItems: 3
clock-names:
oneOf:
- items:
- enum: [apb_pclk, atclk]
- items: # Zynq-700
- const: apb_pclk
- const: dbg_trc
- const: dbg_apb
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
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
properties:
endpoint:
$ref: /schemas/graph.yaml#/$defs/endpoint-base
unevaluatedProperties: false
properties:
filter-source:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to the coresight trace source device matching the
hard coded filtering for this port
remote-endpoint: true
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>;
filter-source = <&tpdm_video>;
};
};
port@1 {
reg = <1>;
replicator_out_port1: endpoint {
remote-endpoint = <&tpiu_in_port>;
filter-source = <&tpdm_mdss>;
};
};
};
in-ports {
port {
replicator_in_port0: endpoint {
remote-endpoint = <&funnel_out_port0>;
};
};
};
};
...
|
