bindings/arm/qcom%2Ccoresight-tpda.yaml

1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
5 $id: http://devicetree.org/schemas/arm/qcom,coresight-tpda.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Trace, Profiling and Diagnostics Aggregator - TPDA
15   task for free-flowing data from TPDM (i.e. CMB and DSB data set flows).
17   There is no strict binding between TPDM and TPDA. TPDA can have multiple
18   TPDMs connect to it. But There must be only one TPDA in the path from the
19   TPDM source to TMC sink. TPDM can directly connect to TPDA's inport or
20   connect to funnel which will connect to TPDA's inport.
23   Enable coresight sink first.
25   echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink
26   echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source
27   echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test
28   echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test
30   The test data will be collected in the coresight sink which is enabled.
36   - Mao Jinlong <quic_jinlmao@quicinc.com>
37   - Tao Zhang <quic_taozha@quicinc.com>
45           - qcom,coresight-tpda
47     - compatible
51     pattern: "^tpda(@[0-9a-f]+)$"
54       - const: qcom,coresight-tpda
55       - const: arm,primecell
64   clock-names:
66       - const: apb_pclk
68   in-ports:
70       Input connections from TPDM to TPDA
73   out-ports:
75       Output connections from the TPDA to legacy CoreSight trace bus.
81           Output connection from the TPDA to legacy CoreSight Trace bus.
85   - compatible
86   - reg
87   - clocks
88   - clock-names
89   - in-ports
90   - out-ports
95   # minimum tpda definition.
96   - |
97     tpda@6004000 {
98       compatible = "qcom,coresight-tpda", "arm,primecell";
102       clock-names = "apb_pclk";
104       in-ports {
105         #address-cells = <1>;
106         #size-cells = <0>;
111             remote-endpoint = <&tpdm_dcc_out_tpda_qdss_0>;
116       out-ports {
119             remote-endpoint = <&funnel_in0_in_tpda_qdss>;