94 lines
2.3 KiB
YAML
94 lines
2.3 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
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# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/arm/qcom,coresight-tpdm.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Trace, Profiling and Diagnostics Monitor - TPDM
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description: |
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The TPDM or Monitor serves as data collection component for various dataset
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types specified in the QPMDA spec. It covers Implementation defined ((ImplDef),
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Basic Counts (BC), Tenure Counts (TC), Continuous Multi-Bit (CMB), and Discrete
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Single Bit (DSB). It performs data collection in the data producing clock
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domain and transfers it to the data collection time domain, generally ATB
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clock domain.
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The primary use case of the TPDM is to collect data from different data
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sources and send it to a TPDA for packetization, timestamping, and funneling.
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maintainers:
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- Mao Jinlong <quic_jinlmao@quicinc.com>
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- Tao Zhang <quic_taozha@quicinc.com>
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# Need a custom select here or 'arm,primecell' will match on lots of nodes
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select:
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properties:
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compatible:
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contains:
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enum:
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- qcom,coresight-tpdm
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required:
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- compatible
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properties:
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$nodename:
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pattern: "^tpdm(@[0-9a-f]+)$"
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compatible:
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items:
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- const: qcom,coresight-tpdm
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- const: arm,primecell
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reg:
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minItems: 1
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maxItems: 2
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: apb_pclk
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out-ports:
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description: |
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Output connections from the TPDM to coresight funnel/TPDA.
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port:
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description: Output connection from the TPDM to coresight
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funnel/TPDA.
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$ref: /schemas/graph.yaml#/properties/port
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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additionalProperties: false
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examples:
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# minimum TPDM definition. TPDM connect to coresight TPDA.
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- |
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tpdm@684c000 {
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compatible = "qcom,coresight-tpdm", "arm,primecell";
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reg = <0x0684c000 0x1000>;
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clocks = <&aoss_qmp>;
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clock-names = "apb_pclk";
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out-ports {
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port {
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tpdm_prng_out_tpda_qdss: endpoint {
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remote-endpoint =
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<&tpda_qdss_in_tpdm_prng>;
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};
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};
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};
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};
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...
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