Add device tree binding for Qualcomm Coresight Interconnect Trace Netwrok On Chip (ITNOC). This TNOC acts as a CoreSight graph link that forwards trace data from a subsystem to the Aggregator TNOC, without aggregation or ATID functionality.
Signed-off-by: Yuanfang Zhang yuanfang.zhang@oss.qualcomm.com --- .../bindings/arm/qcom,coresight-itnoc.yaml | 108 +++++++++++++++++++++ 1 file changed, 108 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yaml new file mode 100644 index 0000000000000000000000000000000000000000..fd224e07ce68918b453210763aacda585d5a5ca2 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-itnoc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Interconnect Trace Network On Chip - ITNOC + +maintainers: + - Yuanfang Zhang yuanfang.zhang@oss.qualcomm.com + +description: | + The Interconnect TNOC is a CoreSight graph link that forwards trace data + from a subsystem to the Aggregator TNOC. Compared to Aggregator TNOC, it + does not have aggregation and ATID functionality. + +select: + properties: + compatible: + contains: + enum: + - qcom,coresight-itnoc + required: + - compatible + +properties: + $nodename: + pattern: "^tnoc(@[0-9a-f]+)?$" + + compatible: + items: + - const: qcom,coresight-itnoc + + reg: + maxItems: 1 + description: Base address and size of the ITNOC registers. + + clock-names: + items: + - const: apb + + clocks: + maxItems: 1 + + in-ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + '#address-cells': + const: 1 + '#size-cells': + const: 0 + + patternProperties: + '^port(@[0-9a-f]{1,2})?$': + description: Input connections from CoreSight Trace Bus + $ref: /schemas/graph.yaml#/properties/port + additionalProperties: false + + out-ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port: + description: out connections to aggregator TNOC + $ref: /schemas/graph.yaml#/properties/port + additionalProperties: false + +required: + - compatible + - reg + - clocks + - clock-names + - in-ports + - out-ports + +additionalProperties: false + +examples: + - | + tnoc@109ac000 { + compatible = "qcom,coresight-itnoc"; + reg = <0x109ac000 0x1000>; + + clocks = <&aoss_qmp>; + clock-names = "apb"; + + in-ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + tn_ic_in_tpdm_dcc: endpoint { + remote-endpoint = <&tpdm_dcc_out_tn_ic>; + }; + }; + }; + + out-ports { + port { + tn_ic_out_tnoc_aggr: endpoint { + /* to Aggregator TNOC input */ + remote-endpoint = <&tn_ag_in_tn_ic>; + }; + }; + }; + }; +...