| Message ID | 20250221-trace-noc-driver-v1-1-0a23fc643217@quicinc.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | coresight: Add Coresight Trace NOC driver | expand |
On Fri, Feb 21, 2025 at 03:40:28PM +0800, Yuanfang Zhang wrote: > Adds new coresight-tnoc.yaml file describing the bindings required > to define Trace NOC in the device trees. > > Signed-off-by: Yuanfang Zhang <quic_yuanfang@quicinc.com> > --- > .../bindings/arm/qcom,coresight-tnoc.yaml | 107 +++++++++++++++++++++ > 1 file changed, 107 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..b8c1aaf014fb483fd960ec55d1193fb3f66136d2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml > @@ -0,0 +1,107 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/arm/qcom,coresight-tnoc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Qualcomm Ttrace NOC(Network On Chip) > + > +maintainers: > + - yuanfang Zhang <quic_yuanfang@quicinc.com> > + > +description: > + The Trace NoC is an integration hierarchy which is a replacement of Dragonlink tile configuration. > + It brings together debug component like TPDA, funnel and interconnect Trace Noc which collects trace > + from subsystems and transfers to QDSS sink. > + > + It sits in the different subsystem of SOC and aggregates the trace and transports it to Aggregation TNoC > + or to QDSS trace sink eventually. Trace NoC embeds bridges for all the interfaces(APB, ATB, QPMDA & NTS). > + > + Trace NoC can take inputs from different trace sources i.e. ATB, QPMDA. Wrap lines at 80 char. And you need '>' to preserve paragraphs. > + > +# Need a custom select here or 'arm,primecell' will match on lots of nodes > +select: > + properties: > + compatible: > + contains: > + enum: > + - qcom,coresight-tnoc > + required: > + - compatible > + > +properties: > + $nodename: > + pattern: "^tn(@[0-9a-f]+)$" blank line > + compatible: > + items: > + - const: qcom,coresight-tnoc > + - const: arm,primecell > + > + reg: > + minItems: 1 > + maxItems: 2 Need to describe what each entry is. > + > + clocks: > + maxItems: 1 > + > + clock-names: > + items: > + - const: apb_pclk > + > + in-ports: > + description: | Don't need '|' > + Input connections from subsystem to TNoC > + $ref: /schemas/graph.yaml#/properties/ports You have to define the 'port' nodes. > + > + out-ports: > + description: | > + Output connections from the TNoC to Aggreg TNoC or to legacy CoreSight trace bus. > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port: > + description: | > + Output connections from the TNoC to Aggreg TNoC or to legacy CoreSight trace bus. 'connections' sounds like more than 1, but you only have 1 port. Wrap at 80 char. > + $ref: /schemas/graph.yaml#/properties/port > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - in-ports > + - out-ports > + > +additionalProperties: false > + > +examples: > + - | > + tn@109ab000 { > + compatible = "qcom,coresight-tnoc", "arm,primecell"; > + reg = <0x0 0x109ab000 0x0 0x4200>; > + > + clocks = <&aoss_qmp>; > + clock-names = "apb_pclk"; > + > + in-ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + tn_ag_in_tpdm_gcc: endpoint { > + remote-endpoint = <&tpdm_gcc_out_tn_ag>; > + }; > + }; > + }; > + > + out-ports { > + port { > + tn_ag_out_funnel_in1: endpoint { > + remote-endpoint = <&funnel_in1_in_tn_ag>; > + }; > + }; > + }; > + }; > +... > > -- > 2.34.1 >
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml new file mode 100644 index 0000000000000000000000000000000000000000..b8c1aaf014fb483fd960ec55d1193fb3f66136d2 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-tnoc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Ttrace NOC(Network On Chip) + +maintainers: + - yuanfang Zhang <quic_yuanfang@quicinc.com> + +description: + The Trace NoC is an integration hierarchy which is a replacement of Dragonlink tile configuration. + It brings together debug component like TPDA, funnel and interconnect Trace Noc which collects trace + from subsystems and transfers to QDSS sink. + + It sits in the different subsystem of SOC and aggregates the trace and transports it to Aggregation TNoC + or to QDSS trace sink eventually. Trace NoC embeds bridges for all the interfaces(APB, ATB, QPMDA & NTS). + + Trace NoC can take inputs from different trace sources i.e. ATB, QPMDA. + +# Need a custom select here or 'arm,primecell' will match on lots of nodes +select: + properties: + compatible: + contains: + enum: + - qcom,coresight-tnoc + required: + - compatible + +properties: + $nodename: + pattern: "^tn(@[0-9a-f]+)$" + compatible: + items: + - const: qcom,coresight-tnoc + - const: arm,primecell + + reg: + minItems: 1 + maxItems: 2 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: apb_pclk + + in-ports: + description: | + Input connections from subsystem to TNoC + $ref: /schemas/graph.yaml#/properties/ports + + out-ports: + description: | + Output connections from the TNoC to Aggreg TNoC or to legacy CoreSight trace bus. + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port: + description: | + Output connections from the TNoC to Aggreg TNoC or to legacy CoreSight trace bus. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - reg + - clocks + - clock-names + - in-ports + - out-ports + +additionalProperties: false + +examples: + - | + tn@109ab000 { + compatible = "qcom,coresight-tnoc", "arm,primecell"; + reg = <0x0 0x109ab000 0x0 0x4200>; + + clocks = <&aoss_qmp>; + clock-names = "apb_pclk"; + + in-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + tn_ag_in_tpdm_gcc: endpoint { + remote-endpoint = <&tpdm_gcc_out_tn_ag>; + }; + }; + }; + + out-ports { + port { + tn_ag_out_funnel_in1: endpoint { + remote-endpoint = <&funnel_in1_in_tn_ag>; + }; + }; + }; + }; +...
Adds new coresight-tnoc.yaml file describing the bindings required to define Trace NOC in the device trees. Signed-off-by: Yuanfang Zhang <quic_yuanfang@quicinc.com> --- .../bindings/arm/qcom,coresight-tnoc.yaml | 107 +++++++++++++++++++++ 1 file changed, 107 insertions(+)