[PATCH V2 1/1] ARM: dts: imx7d: add cortex-a7 coresight component
Mathieu Poirier
mathieu.poirier at linaro.org
Tue Jun 2 07:36:49 PDT 2015
On 1 June 2015 at 14:54, <Frank.Li at freescale.com> wrote:
> From: Frank Li <Frank.Li at freescale.com>
>
> 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 at freescale.com>
> ---
> Change from V1 to V2
> - remove "0" after @
> - add comments about unused funnel input port
> - add comments about add arm,primecell-periphid
>
> arch/arm/boot/dts/imx7d.dtsi | 202 +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 202 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
> index b4cd8fd..d715501 100644
> --- a/arch/arm/boot/dts/imx7d.dtsi
> +++ b/arch/arm/boot/dts/imx7d.dtsi
> @@ -121,6 +121,208 @@
> clock-output-names = "osc";
> };
>
> + etr at 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 at 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 at 0 {
> + 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 at 0 {
> + reg = <0>;
> + replicator_out_port0: endpoint {
> + remote-endpoint = <&tpiu_in_port>;
> + };
> + };
> +
> + port at 1 {
> + reg = <1>;
> + replicator_out_port1: endpoint {
> + remote-endpoint = <&etr_in_port>;
> + };
> + };
> +
> + /* replicator input port */
> + port at 2 {
> + reg = <0>;
> + replicator_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etf_out_port>;
> + };
> + };
> + };
> + };
> +
> + etf at 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 at 0 {
> + reg = <0>;
> + etf_in_port: endpoint {
> + slave-mode;
> + remote-endpoint = <&hugo_funnel_out_port0>;
> + };
> + };
> +
> + port at 1 {
> + reg = <0>;
> + etf_out_port: endpoint {
> + remote-endpoint = <&replicator_in_port0>;
> + };
> + };
> + };
> + };
> +
> + funnel at 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 at 0 {
> + reg = <0>;
> + hugo_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&ca_funnel_out_port0>;
> + };
> + };
> +
> + port at 1 {
> + reg = <1>;
> + hugo_funnel_in_port1: endpoint {
> + slave-mode; /* M4 input */
> + };
> + };
> +
> + port at 2 {
> + reg = <0>;
> + hugo_funnel_out_port0: endpoint {
> + remote-endpoint = <&etf_in_port>;
> + };
> + };
> +
> + /* the other input ports are not connect to anything */
> + };
> + };
> +
> + funnel at 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 at 0 {
> + reg = <0>;
> + ca_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm0_out_port>;
> + };
> + };
> +
> + port at 1 {
> + reg = <1>;
> + ca_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm1_out_port>;
> + };
> + };
> +
> + /* funnel output port */
> + port at 2 {
> + reg = <0>;
> + ca_funnel_out_port0: endpoint {
> + remote-endpoint = <&hugo_funnel_in_port0>;
> + };
> + };
> +
> + /* the other input ports are not connect to anything */
> + };
> + };
> +
> + etm at 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 at 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>;
> --
> 1.9.1
>
I am good with this patch and would take it in my tree but I simply
can't find "imx7d.dtsi" anywhere. Who is the maintainer, where is the
tree?
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