linux-kernel - [PATCH 06/13] arm64: dts: imx95: Add coresight nodes

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Message-Id: <20250815-imx9-dts-v1-6-e609eb4e3105@nxp.com>
Date: Fri, 15 Aug 2025 17:03:52 +0800
From: Peng Fan <peng.fan@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Frank Li <Frank.Li@....com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Peng Fan <peng.fan@....com>
Subject: [PATCH 06/13] arm64: dts: imx95: Add coresight nodes

Add etf, etm, etr, funnel nodes for coresight.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx95.dtsi | 104 +++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index adc63448aa15b148ca0eb8499ff5bc217fe8208e..2fbdd9c7ca099ba6971e4f6914be680a5b96da36 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -492,6 +492,110 @@ soc {
 		#size-cells = <2>;
 		ranges;
 
+		etm0: etm@...40000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0x0 0x40840000 0x0 0x10000>;
+			arm,primecell-periphid = <0xbb95d>;
+			cpu = <&A55_0>;
+			clocks = <&scmi_clk IMX95_CLK_A55PERIPH>;
+			clock-names = "apb_pclk";
+			status = "disabled";
+
+			out-ports {
+				port {
+					etm0_out_port: endpoint {
+						remote-endpoint = <&ca_funnel_in_port0>;
+					};
+				};
+			};
+		};
+
+		funnel0: funnel {
+			/*
+			 * non-configurable funnel don't show up on the AMBA
+			 * bus.  As such no need to add "arm,primecell".
+			 */
+			compatible = "arm,coresight-static-funnel";
+			status = "disabled";
+
+			in-ports {
+				port {
+					ca_funnel_in_port0: endpoint {
+						remote-endpoint = <&etm0_out_port>;
+					};
+				};
+			};
+
+			out-ports {
+				port {
+					ca_funnel_out_port0: endpoint {
+						remote-endpoint = <&hugo_funnel_in_port0>;
+					};
+				};
+			};
+		};
+
+		funnel1: funnel_sys {
+			compatible = "arm,coresight-static-funnel";
+			status = "disabled";
+
+			in-ports {
+				port {
+					hugo_funnel_in_port0: endpoint {
+						remote-endpoint = <&ca_funnel_out_port0>;
+					};
+				};
+			};
+
+			out-ports {
+				port {
+					hugo_funnel_out_port0: endpoint {
+						remote-endpoint = <&etf_in_port>;
+					};
+				};
+			};
+		};
+
+		etf: etf@...30000 {
+			compatible = "arm,coresight-tmc", "arm,primecell";
+			reg = <0x0 0x41030000 0x0 0x1000>;
+			clocks = <&scmi_clk IMX95_CLK_A55PERIPH>;
+			clock-names = "apb_pclk";
+			status = "disabled";
+
+			in-ports {
+				port {
+					etf_in_port: endpoint {
+						remote-endpoint = <&hugo_funnel_out_port0>;
+					};
+				};
+			};
+
+			out-ports {
+				port {
+					etf_out_port: endpoint {
+						remote-endpoint = <&etr_in_port>;
+					};
+				};
+			};
+		};
+
+		etr: etr@...40000 {
+			compatible = "arm,coresight-tmc", "arm,primecell";
+			reg = <0x0 0x41040000 0x0 0x1000>;
+			clocks = <&scmi_clk IMX95_CLK_A55PERIPH>;
+			clock-names = "apb_pclk";
+			status = "disabled";
+
+			in-ports {
+				port {
+					etr_in_port: endpoint {
+						remote-endpoint = <&etf_out_port>;
+					};
+				};
+			};
+		};
+
 		aips2: bus@...00000 {
 			compatible = "fsl,aips-bus", "simple-bus";
 			reg = <0x0 0x42000000 0x0 0x800000>;

-- 
2.37.1