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|---|---|
| From | Chunyan Zhang <zhang.chunyan@linaro.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH] arm64: dts: sprd: adding ETM entries to Spreadtrum SC9836 |
| Date | Wed, 15 Jul 2015 09:10:02 +0200 |
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Since ETMv4 driver has been merged, this patch adds ETM nodes for SC9836,
and four funnel input ports to connect with ETM output ports.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
---
arch/arm64/boot/dts/sprd/sc9836.dtsi | 99 ++++++++++++++++++++++++++++++++++--
1 file changed, 94 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/sprd/sc9836.dtsi b/arch/arm64/boot/dts/sprd/sc9836.dtsi
index ee34e1a..63894c4 100644
--- a/arch/arm64/boot/dts/sprd/sc9836.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc9836.dtsi
@@ -16,28 +16,28 @@
#address-cells = <2>;
#size-cells = <0>;
- cpu@0 {
+ cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x0>;
enable-method = "psci";
};
- cpu@1 {
+ cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x1>;
enable-method = "psci";
};
- cpu@2 {
+ cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x2>;
enable-method = "psci";
};
- cpu@3 {
+ cpu3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x3>;
@@ -75,14 +75,103 @@
};
};
- /* funnel input port 0~3 is reserved for ETMs */
+ /* funnel input port 0-4 */
port@1 {
+ reg = <0>;
+ funnel_in_port0: endpoint {
+ slave-mode;
+ remote-endpoint = <&etm0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <1>;
+ funnel_in_port1: endpoint {
+ slave-mode;
+ remote-endpoint = <&etm1_out>;
+ };
+ };
+
+ port@3 {
+ reg = <2>;
+ funnel_in_port2: endpoint {
+ slave-mode;
+ remote-endpoint = <&etm2_out>;
+ };
+ };
+
+ port@4 {
+ reg = <3>;
+ funnel_in_port3: endpoint {
+ slave-mode;
+ remote-endpoint = <&etm3_out>;
+ };
+ };
+
+ port@5 {
reg = <4>;
funnel_in_port4: endpoint {
slave-mode;
remote-endpoint = <&stm_out>;
};
};
+ /* Other input ports aren't connected to anyone */
+ };
+ };
+
+ etm@10440000 {
+ compatible = "arm,coresight-etm4x", "arm,primecell";
+ reg = <0 0x10440000 0 0x1000>;
+
+ cpu = <&cpu0>;
+ clocks = <&clk26mhz>;
+ clock-names = "apb_pclk";
+ port {
+ etm0_out: endpoint {
+ remote-endpoint = <&funnel_in_port0>;
+ };
+ };
+ };
+
+ etm@10540000 {
+ compatible = "arm,coresight-etm4x", "arm,primecell";
+ reg = <0 0x10540000 0 0x1000>;
+
+ cpu = <&cpu1>;
+ clocks = <&clk26mhz>;
+ clock-names = "apb_pclk";
+ port {
+ etm1_out: endpoint {
+ remote-endpoint = <&funnel_in_port1>;
+ };
+ };
+ };
+
+ etm@10640000 {
+ compatible = "arm,coresight-etm4x", "arm,primecell";
+ reg = <0 0x10640000 0 0x1000>;
+
+ cpu = <&cpu2>;
+ clocks = <&clk26mhz>;
+ clock-names = "apb_pclk";
+ port {
+ etm2_out: endpoint {
+ remote-endpoint = <&funnel_in_port2>;
+ };
+ };
+ };
+
+ etm@10740000 {
+ compatible = "arm,coresight-etm4x", "arm,primecell";
+ reg = <0 0x10740000 0 0x1000>;
+
+ cpu = <&cpu3>;
+ clocks = <&clk26mhz>;
+ clock-names = "apb_pclk";
+ port {
+ etm3_out: endpoint {
+ remote-endpoint = <&funnel_in_port3>;
+ };
};
};
--
1.9.1
--
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[PATCH] arm64: dts: sprd: adding ETM entries to Spreadtrum SC9836 Chunyan Zhang <zhang.chunyan@linaro.org> - 2015-07-15 09:10 +0200 Re: [PATCH] arm64: dts: sprd: adding ETM entries to Spreadtrum SC9836 Olof Johansson <olof@lixom.net> - 2015-07-15 12:10 +0200
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