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>

diff --git a/arch/arm64/boot/dts/sprd/sc9836.dtsi b/arch/arm64/boot/dts/sprd/sc9836.dtsi
index ee34e1a..63894c4 100644 (file)
--- 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>;
+                       };
                };
        };