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Commit 3adab7c7 authored by Frank Li's avatar Frank Li Committed by Shawn Guo
Browse files

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: default avatarFrank Li <Frank.Li@freescale.com>
Acked-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 7804fbcf

arch/arm/boot/dts/imx7d.dtsi

+203 −0
Original line number Diff line number Diff line
@@ -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>;