1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/arm/qcom,coresight-remote-etm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm Coresight Remote ETM(Embedded Trace Macrocell)
8
9 maintainers:
10 - Jinlong Mao <quic_jinlmao@quicinc.com>
11 - Tao Zhang <quic_taozha@quicinc.com>
12
13 description:
14 Support for ETM trace collection on remote processor using coresight
15 framework. Enabling this will allow turning on ETM tracing on remote
16 processor like modem processor via sysfs and collecting the trace
17 via coresight TMC sinks.
18
19 properties:
20 compatible:
21 const: qcom,coresight-remote-etm
22
23 out-ports:
24 $ref: /schemas/graph.yaml#/properties/ports
25 additionalProperties: false
26
27 properties:
28 port:
29 description: Output connection to the CoreSight Trace bus.
30 $ref: /schemas/graph.yaml#/properties/port
31
32 required:
33 - compatible
34 - out-ports
35
36 additionalProperties: false
37
38 examples:
39 - |
40 etm {
41 compatible = "qcom,coresight-remote-etm";
42
43 out-ports {
44 port {
45 modem_etm0_out_funnel_modem: endpoint {
46 remote-endpoint = <&funnel_modem_in_modem_etm0>;
47 };
48 };
49 };
50 };
51 ...
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