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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7992d0e1336sm20657931b3a.59.2025.10.15.22.49.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Oct 2025 22:49:36 -0700 (PDT) From: Yuanfang Zhang Date: Wed, 15 Oct 2025 22:49:30 -0700 Subject: [PATCH v5 1/3] dt-bindings: arm: qcom: Add Coresight Interconnect TNOC Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251015-itnoc-v5-1-d7ca2b1cc6df@oss.qualcomm.com> References: <20251015-itnoc-v5-0-d7ca2b1cc6df@oss.qualcomm.com> In-Reply-To: <20251015-itnoc-v5-0-d7ca2b1cc6df@oss.qualcomm.com> To: Suzuki K Poulose , Mike Leach , James Clark , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexander Shishkin Cc: kernel@oss.qualcomm.com, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Yuanfang Zhang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1760593774; l=3075; i=yuanfang.zhang@oss.qualcomm.com; s=20250814; h=from:subject:message-id; bh=Y867aF4IBjLOR2gpmZC8PqfLpe9/4Juk6DhmSLbLZ8U=; b=cliWJQ3cCm/Fg7j1zfG3GF1la0aaPjQALYORA+TGbWnntK956NJJ0g8VbCrYQRc+v5A9cc4jL zoeEtsiuSbLAXyvjitBHF6kaYuoH4vz3sV7bCFgyhDTdYSQhvw9uak6 X-Developer-Key: i=yuanfang.zhang@oss.qualcomm.com; a=ed25519; pk=9oS/FoPW5k0CsqSDDrPlnV+kVIOUaAe0O5pr4M1wHgY= X-Proofpoint-GUID: dvN-pfzEdKZ5H7jT_zB-SGYjz7xFvsai X-Authority-Analysis: v=2.4 cv=e5MLiKp/ c=1 sm=1 tr=0 ts=68f08772 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=gEfo2CItAAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=-QmmxQN2S_yWG1-YAlkA:9 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 a=sptkURWiP4Gy88Gu7hUp:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDE0MDEzNCBTYWx0ZWRfXzkETCECd09GN 2iPKh+RcLsi9W223gJQAgxAU9+AMAQEQaI6H8EAy9bAXJwJSah4xAKmnht2e0XM7Sy/q6Qo+XKQ cyfEYHpx9HWmcXJas8yzeIli0Dne/w9SWumFdYM7oZnEUTI0Y+akyzCyPttOJY0VWQg39ZMmWWI Qg1o16wsOxk4ULk0BSkYSter4LUMHcTfastVtwCkoitfOQAhJCZu5UftQFWOhC4GD18wX1AAzVH Bz+Ej/Uj1nRm/bGQr+2d7tXjGnC5F1Wg+rvZx3xjRzcb1X042r6upmrQ/5YpR5kH7v94Q3BsPel 0SwdcXr9FnYvkq5W8+EohkrimnXRSpYX1hfo6XPNf/Lqy+7Bqq5vTSlsK+G9FMFG4TL+DJAOk+r R4uiW9mWUTqiehWcQwd60whKhSiTNg== X-Proofpoint-ORIG-GUID: dvN-pfzEdKZ5H7jT_zB-SGYjz7xFvsai X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-15_07,2025-10-13_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 spamscore=0 adultscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510140134 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 Reviewed-by: Rob Herring (Arm) --- .../bindings/arm/qcom,coresight-itnoc.yaml | 90 ++++++++++++++++++= ++++ 1 file changed, 90 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yam= l b/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yaml new file mode 100644 index 0000000000000000000000000000000000000000..8936bb7c3e8ea267ca66e0cc3fc= 4dac33ba6de30 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-itnoc.yaml @@ -0,0 +1,90 @@ +# 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 + +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. + +properties: + $nodename: + pattern: "^itnoc(@[0-9a-f]+)?$" + + compatible: + const: qcom,coresight-itnoc + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: apb + + in-ports: + $ref: /schemas/graph.yaml#/properties/ports + + patternProperties: + '^port(@[0-9a-f]{1,2})?$': + description: Input connections from CoreSight Trace Bus + $ref: /schemas/graph.yaml#/properties/port + + out-ports: + $ref: /schemas/graph.yaml#/properties/ports + additionalProperties: false + + properties: + port: + description: out connections to aggregator TNOC + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - reg + - clocks + - clock-names + - in-ports + - out-ports + +additionalProperties: false + +examples: + - | + itnoc@109ac000 { + compatible =3D "qcom,coresight-itnoc"; + reg =3D <0x109ac000 0x1000>; + + clocks =3D <&aoss_qmp>; + clock-names =3D "apb"; + + in-ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + port@0 { + reg =3D <0>; + tn_ic_in_tpdm_dcc: endpoint { + remote-endpoint =3D <&tpdm_dcc_out_tn_ic>; + }; + }; + }; + + out-ports { + port { + tn_ic_out_tnoc_aggr: endpoint { + /* to Aggregator TNOC input */ + remote-endpoint =3D <&tn_ag_in_tn_ic>; + }; + }; + }; + }; +... --=20 2.34.1