linux-kernel - [PATCH v2] coresight: adding basic support for Spreadtrum SC9836

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Date:	Wed, 25 Mar 2015 20:52:11 +0800
From:	Chunyan Zhang <zhang.chunyan@...aro.org>
To:	arm@...nel.org, arnd@...db.de
Cc:	mathieu.poirier@...aro.org, will.deacon@....com,
	mark.rutland@....com, robh+dt@...nel.org, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	catalin.marinas@....com, kaixu.xia@...aro.org,
	zhizhou.zhang@...eadtrum.com, orsonzhai@...il.com,
	zhang.lyra@...il.com, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] coresight: adding basic support for Spreadtrum SC9836

Support only for ETF, FUNNEL, STM are included currently.
Support for ETM, TPIU and the replicator linked to it are not included in
this version patch.

Signed-off-by: Chunyan Zhang <zhang.chunyan@...aro.org>
---
Change for v2:
 - Corrected the TMC whose space is wrongly used as ETB in v1.
 - Removed "coresight-default-sink" from the DT.
---
 arch/arm64/boot/dts/sprd/sc9836.dtsi | 55 ++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/arch/arm64/boot/dts/sprd/sc9836.dtsi b/arch/arm64/boot/dts/sprd/sc9836.dtsi
index f92f1b4..ee34e1a 100644
--- a/arch/arm64/boot/dts/sprd/sc9836.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc9836.dtsi
@@ -45,6 +45,61 @@
 		};
 	};
 
+	etf@...03000 {
+		compatible = "arm,coresight-tmc", "arm,primecell";
+		reg = <0 0x10003000 0 0x1000>;
+		clocks = <&clk26mhz>;
+		clock-names = "apb_pclk";
+		port {
+			etf_in: endpoint {
+				slave-mode;
+				remote-endpoint = <&funnel_out_port0>;
+			};
+		};
+	};
+
+	funnel@...01000 {
+		compatible = "arm,coresight-funnel", "arm,primecell";
+		reg = <0 0x10001000 0 0x1000>;
+		clocks = <&clk26mhz>;
+		clock-names = "apb_pclk";
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/* funnel output port */
+			port@0 {
+				reg = <0>;
+				funnel_out_port0: endpoint {
+					remote-endpoint = <&etf_in>;
+				};
+			};
+
+			/* funnel input port 0~3 is reserved for ETMs */
+			port@1 {
+				reg = <4>;
+				funnel_in_port4: endpoint {
+					slave-mode;
+					remote-endpoint = <&stm_out>;
+				};
+			};
+		};
+	};
+
+	stm@...06000 {
+		compatible = "arm,coresight-stm", "arm,primecell";
+		reg = <0 0x10006000 0 0x1000>,
+		      <0 0x01000000 0 0x180000>;
+		reg-names = "stm-base", "stm-stimulus-base";
+		clocks = <&clk26mhz>;
+		clock-names = "apb_pclk";
+		port {
+			stm_out: endpoint {
+				remote-endpoint = <&funnel_in_port4>;
+			};
+		};
+	};
+
 	gic: interrupt-controller@...01000 {
 		compatible = "arm,gic-400";
 		reg = <0 0x12001000 0 0x1000>,
-- 
1.9.1

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