arm64: dts: sprd: adding ETM entries to Spreadtrum SC9836

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>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 94 insertions, 5 deletions

diff --git a/arch/arm64/boot/dts/sprd/sc9836.dtsi b/arch/arm64/boot/dts/sprd/sc9836.dtsi
index ee34e1a36e03..63894c456969 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>;
+                        };
                 };
         };