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2b3625a832
Add device tree binding for Qualcomm Coresight Interconnect Trace Network 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> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20251203-itnoc-v5-1-5b97c63f2268@oss.qualcomm.com
91 lines
2.0 KiB
YAML
91 lines
2.0 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/arm/qcom,coresight-itnoc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Interconnect Trace Network On Chip - ITNOC
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maintainers:
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- Yuanfang Zhang <yuanfang.zhang@oss.qualcomm.com>
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description:
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The Interconnect TNOC is a CoreSight graph link that forwards trace data
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from a subsystem to the Aggregator TNOC. Compared to Aggregator TNOC, it
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does not have aggregation and ATID functionality.
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properties:
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$nodename:
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pattern: "^itnoc(@[0-9a-f]+)?$"
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compatible:
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const: qcom,coresight-itnoc
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reg:
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maxItems: 1
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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
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in-ports:
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$ref: /schemas/graph.yaml#/properties/ports
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patternProperties:
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'^port(@[0-9a-f]{1,2})?$':
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description: Input connections from CoreSight Trace Bus
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$ref: /schemas/graph.yaml#/properties/port
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out-ports:
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$ref: /schemas/graph.yaml#/properties/ports
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additionalProperties: false
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properties:
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port:
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description: out connections to aggregator TNOC
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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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- in-ports
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- out-ports
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additionalProperties: false
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examples:
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- |
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itnoc@109ac000 {
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compatible = "qcom,coresight-itnoc";
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reg = <0x109ac000 0x1000>;
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clocks = <&aoss_qmp>;
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clock-names = "apb";
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in-ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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tn_ic_in_tpdm_dcc: endpoint {
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remote-endpoint = <&tpdm_dcc_out_tn_ic>;
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};
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};
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};
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out-ports {
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port {
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tn_ic_out_tnoc_aggr: endpoint {
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/* to Aggregator TNOC input */
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remote-endpoint = <&tn_ag_in_tn_ic>;
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};
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};
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};
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};
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...
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