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