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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>
This commit is contained in:
Frank Li 2015-06-30 22:58:11 +08:00 committed by Shawn Guo
parent 7804fbcfe5
commit 3adab7c796
1 changed files with 203 additions and 0 deletions
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203
arch/arm/boot/dts/imx7d.dtsi
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@ -121,6 +121,209 @@ osc: clock-osc {
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>;