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Message-Id: <20210321121105.678515-1-leo.yan@linaro.org>
Date:   Sun, 21 Mar 2021 20:11:05 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Stephan Gerhold <stephan@...hold.net>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Coresight ML <coresight@...ts.linaro.org>
Cc:     Leo Yan <leo.yan@...aro.org>,
        Georgi Djakov <georgi.djakov@...aro.org>
Subject: [PATCH v2] arm64: dts: msm8916: Enable CoreSight STM component

Add DT binding for CoreSight System Trace Macrocell (STM) on msm8916,
which can benefit the CoreSight development on DB410c.

Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
Signed-off-by: Leo Yan <leo.yan@...aro.org>
---

Changes from v1:
* alphabetically and address ordering for DT node; pad addresses with
* zeroes (Stephan Gerhold).

 arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi |  1 +
 arch/arm64/boot/dts/qcom/msm8916.dtsi     | 27 +++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index 3a9538e1ec97..2165b7415add 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -410,6 +410,7 @@ &wcd_codec {
 &funnel0 { status = "okay"; };
 &funnel1 { status = "okay"; };
 &replicator { status = "okay"; };
+&stm { status = "okay"; };
 &tpiu { status = "okay"; };
 
 &smd_rpm_regulators {
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 402e891a84ab..f02b976480d5 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -489,6 +489,26 @@ snoc: interconnect@...000 {
 				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
 		};
 
+		stm: stm@...000 {
+			compatible = "arm,coresight-stm", "arm,primecell";
+			reg = <0x00802000 0x1000>,
+			      <0x09280000 0x180000>;
+			reg-names = "stm-base", "stm-stimulus-base";
+
+			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
+			clock-names = "apb_pclk", "atclk";
+
+			status = "disabled";
+
+			out-ports {
+				port {
+					stm_out: endpoint {
+						remote-endpoint = <&funnel0_in7>;
+					};
+				};
+			};
+		};
+
 		/* System CTIs */
 		/* CTI 0 - TMC connections */
 		cti0: cti@...000 {
@@ -562,6 +582,13 @@ funnel0_in4: endpoint {
 						remote-endpoint = <&funnel1_out>;
 					};
 				};
+
+				port@7 {
+					reg = <7>;
+					funnel0_in7: endpoint {
+						remote-endpoint = <&stm_out>;
+					};
+				};
 			};
 
 			out-ports {
-- 
2.25.1

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