ARM: dts: imx7d: add cortex-a7 coresight component

Added etm, etb, funnel and replicator

usage example:

    echo 1 >/sys/bus/coresight/devices/30086000.etr/enable_sink
    echo 1 >/sys/bus/coresight/devices/3007c000.etm/enable_source

        coresight-tmc 30086000.etr: TMC enabled
        coresight-replicator replicator.1: REPLICATOR enabled
        coresight-tmc 30084000.tmc: TMC enabled
        coresight-funnel 30083000.funnel: FUNNEL inport 0 enabled
        coresight-funnel 30041000.funnel: FUNNEL inport 0 enabled
        coresight-etm3x 3007c000.etm: ETM tracing enabled

    etm enable here.
    trace data save at /dev/30086000.etr

    cat /dev/30086000.etr > trace.data

        coresight-tmc 30086000.etr: TMC read start
        coresight-tmc 30086000.etr: TMC read end

    use ptm2human(https://github.com/hwangcc23/ptm2human) to show trace data

    ptm2human -i trace.data

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index b4cd8fdfb10115a639024e236518cfd6e0740ddc..9014b8071b190ea36e14aa608c8888b4859bd0af 100644 (file)
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -121,6 +121,209 @@
                clock-output-names = "osc";
        };
 
+       etr@30086000 {
+               compatible = "arm,coresight-tmc", "arm,primecell";
+               reg = <0x30086000 0x1000>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               port {
+                       etr_in_port: endpoint {
+                               slave-mode;
+                               remote-endpoint = <&replicator_out_port1>;
+                       };
+               };
+       };
+
+       tpiu@30087000 {
+               compatible = "arm,coresight-tpiu", "arm,primecell";
+               reg = <0x30087000 0x1000>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               port {
+                       tpiu_in_port: endpoint {
+                               slave-mode;
+                               remote-endpoint = <&replicator_out_port1>;
+                       };
+               };
+       };
+
+       replicator {
+               /*
+                * non-configurable replicators don't show up on the
+                * AMBA bus.  As such no need to add "arm,primecell"
+                */
+               compatible = "arm,coresight-replicator";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       /* replicator output ports */
+                       port@0 {
+                               reg = <0>;
+                               replicator_out_port0: endpoint {
+                                       remote-endpoint = <&tpiu_in_port>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               replicator_out_port1: endpoint {
+                                       remote-endpoint = <&etr_in_port>;
+                               };
+                       };
+
+                       /* replicator input port */
+                       port@2 {
+                               reg = <0>;
+                               replicator_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&etf_out_port>;
+                               };
+                       };
+               };
+       };
+
+       etf@30084000 {
+               compatible = "arm,coresight-tmc", "arm,primecell";
+               reg = <0x30084000 0x1000>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               etf_in_port: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&hugo_funnel_out_port0>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <0>;
+                               etf_out_port: endpoint {
+                                       remote-endpoint = <&replicator_in_port0>;
+                               };
+                       };
+               };
+       };
+
+       funnel@30083000 {
+               compatible = "arm,coresight-funnel", "arm,primecell";
+               reg = <0x30083000 0x1000>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       /* funnel input ports */
+                       port@0 {
+                               reg = <0>;
+                               hugo_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&ca_funnel_out_port0>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               hugo_funnel_in_port1: endpoint {
+                                       slave-mode; /* M4 input */
+                               };
+                       };
+
+                       port@2 {
+                               reg = <0>;
+                               hugo_funnel_out_port0: endpoint {
+                                       remote-endpoint = <&etf_in_port>;
+                               };
+                       };
+
+                       /* the other input ports are not connect to anything */
+               };
+       };
+
+       funnel@30041000 {
+               compatible = "arm,coresight-funnel", "arm,primecell";
+               reg = <0x30041000 0x1000>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       /* funnel input ports */
+                       port@0 {
+                               reg = <0>;
+                               ca_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&etm0_out_port>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               ca_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&etm1_out_port>;
+                               };
+                       };
+
+                       /* funnel output port */
+                       port@2 {
+                               reg = <0>;
+                               ca_funnel_out_port0: endpoint {
+                                       remote-endpoint = <&hugo_funnel_in_port0>;
+                               };
+                       };
+
+                       /* the other input ports are not connect to anything */
+               };
+       };
+
+       etm@3007c000 {
+               compatible = "arm,coresight-etm3x", "arm,primecell";
+               reg = <0x3007c000 0x1000>;
+               cpu = <&cpu0>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               port {
+                       etm0_out_port: endpoint {
+                               remote-endpoint = <&ca_funnel_in_port0>;
+                       };
+               };
+       };
+
+       etm@3007d000 {
+               compatible = "arm,coresight-etm3x", "arm,primecell";
+               reg = <0x3007d000 0x1000>;
+
+               /*
+                * System will hang if added nosmp in kernel command line
+                * without arm,primecell-periphid because amba bus try to
+                * read id and core1 power off at this time.
+                */
+               arm,primecell-periphid = <0xbb956>;
+               cpu = <&cpu1>;
+               clocks = <&clks IMX7D_MAIN_AXI_ROOT_CLK>;
+               clock-names = "apb_pclk";
+
+               port {
+                       etm1_out_port: endpoint {
+                               remote-endpoint = <&ca_funnel_in_port1>;
+                       };
+               };
+       };
+
        soc {
                #address-cells = <1>;
                #size-cells = <1>;