arm64: dts: juno: add coresight support

Most of the debug-related components on Juno are located in the coreSight
subsystem while others are located in the Cortex-Axx clusters, the SCP
subsystem, and in the main system.

Each core in the two processor clusters contain an Embedded Trace
Macrocell(ETM) which generates real-time trace information that trace
tools can use and an ATB trace output that is sent to a funnel before
going to the CoreSight subsystem.

The trace output signals combine with two trace expansions using another
funnel and fed into the Embedded Trace FIFO(ETF0).

The output trace data stream of the funnel is then replicated before it
is sent to either the:
- Trace Port Interface Unit(TPIU), that sends it out using the trace port.
- ETR that can write the trace data to memory located in the application
  memory space

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index dee2386..4ea40a4 100644 (file)
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -56,6 +56,303 @@
                             <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>;
        };
 
+       /*
+        * Juno TRMs specify the size for these coresight components as 64K.
+        * The actual size is just 4K though 64K is reserved. Access to the
+        * unmapped reserved region results in a DECERR response.
+        */
+       etf@20010000 {
+               compatible = "arm,coresight-tmc", "arm,primecell";
+               reg = <0 0x20010000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       /* input port */
+                       port@0 {
+                               reg = <0>;
+                               etf_in_port: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&main_funnel_out_port>;
+                               };
+                       };
+
+                       /* output port */
+                       port@1 {
+                               reg = <0>;
+                               etf_out_port: endpoint {
+                                       remote-endpoint = <&replicator_in_port0>;
+                               };
+                       };
+               };
+       };
+
+       tpiu@20030000 {
+               compatible = "arm,coresight-tpiu", "arm,primecell";
+               reg = <0 0x20030000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       tpiu_in_port: endpoint {
+                               slave-mode;
+                               remote-endpoint = <&replicator_out_port0>;
+                       };
+               };
+       };
+
+       main-funnel@20040000 {
+               compatible = "arm,coresight-funnel", "arm,primecell";
+               reg = <0 0x20040000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               main_funnel_out_port: endpoint {
+                                       remote-endpoint = <&etf_in_port>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <0>;
+                               main_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster0_funnel_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               main_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster1_funnel_out_port>;
+                               };
+                       };
+
+               };
+       };
+
+       etr@20070000 {
+               compatible = "arm,coresight-tmc", "arm,primecell";
+               reg = <0 0x20070000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       etr_in_port: endpoint {
+                               slave-mode;
+                               remote-endpoint = <&replicator_out_port1>;
+                       };
+               };
+       };
+
+       etm0: etm@22040000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x22040000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster0_etm0_out_port: endpoint {
+                               remote-endpoint = <&cluster0_funnel_in_port0>;
+                       };
+               };
+       };
+
+       cluster0-funnel@220c0000 {
+               compatible = "arm,coresight-funnel", "arm,primecell";
+               reg = <0 0x220c0000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               cluster0_funnel_out_port: endpoint {
+                                       remote-endpoint = <&main_funnel_in_port0>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <0>;
+                               cluster0_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster0_etm0_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               cluster0_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster0_etm1_out_port>;
+                               };
+                       };
+               };
+       };
+
+       etm1: etm@22140000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x22140000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster0_etm1_out_port: endpoint {
+                               remote-endpoint = <&cluster0_funnel_in_port1>;
+                       };
+               };
+       };
+
+       etm2: etm@23040000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23040000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster1_etm0_out_port: endpoint {
+                               remote-endpoint = <&cluster1_funnel_in_port0>;
+                       };
+               };
+       };
+
+       cluster1-funnel@230c0000 {
+               compatible = "arm,coresight-funnel", "arm,primecell";
+               reg = <0 0x230c0000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               cluster1_funnel_out_port: endpoint {
+                                       remote-endpoint = <&main_funnel_in_port1>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <0>;
+                               cluster1_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster1_etm0_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               cluster1_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster1_etm1_out_port>;
+                               };
+                       };
+                       port@3 {
+                               reg = <2>;
+                               cluster1_funnel_in_port2: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster1_etm2_out_port>;
+                               };
+                       };
+                       port@4 {
+                               reg = <3>;
+                               cluster1_funnel_in_port3: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&cluster1_etm3_out_port>;
+                               };
+                       };
+               };
+       };
+
+       etm3: etm@23140000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23140000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster1_etm1_out_port: endpoint {
+                               remote-endpoint = <&cluster1_funnel_in_port1>;
+                       };
+               };
+       };
+
+       etm4: etm@23240000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23240000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster1_etm2_out_port: endpoint {
+                               remote-endpoint = <&cluster1_funnel_in_port2>;
+                       };
+               };
+       };
+
+       etm5: etm@23340000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23340000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       cluster1_etm3_out_port: endpoint {
+                               remote-endpoint = <&cluster1_funnel_in_port3>;
+                       };
+               };
+       };
+
+       coresight-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>;
+                               };
+                       };
+               };
+       };
+
        sram: sram@2e000000 {
                compatible = "arm,juno-sram-ns", "mmio-sram";
                reg = <0x0 0x2e000000 0x0 0x8000>;

diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
index d95d9e7..f4f8f54 100644 (file)
--- a/arch/arm64/boot/dts/arm/juno-r1.dts
+++ b/arch/arm64/boot/dts/arm/juno-r1.dts
@@ -181,3 +181,27 @@
 &pcie_ctlr {
        status = "okay";
 };
+
+&etm0 {
+       cpu = <&A57_0>;
+};
+
+&etm1 {
+       cpu = <&A57_1>;
+};
+
+&etm2 {
+       cpu = <&A53_0>;
+};
+
+&etm3 {
+       cpu = <&A53_1>;
+};
+
+&etm4 {
+       cpu = <&A53_2>;
+};
+
+&etm5 {
+       cpu = <&A53_3>;
+};

diff --git a/arch/arm64/boot/dts/arm/juno-r2.dts b/arch/arm64/boot/dts/arm/juno-r2.dts
index 88ecd61..d903e54 100644 (file)
--- a/arch/arm64/boot/dts/arm/juno-r2.dts
+++ b/arch/arm64/boot/dts/arm/juno-r2.dts
@@ -181,3 +181,27 @@
 &pcie_ctlr {
        status = "okay";
 };
+
+&etm0 {
+       cpu = <&A72_0>;
+};
+
+&etm1 {
+       cpu = <&A72_1>;
+};
+
+&etm2 {
+       cpu = <&A53_0>;
+};
+
+&etm3 {
+       cpu = <&A53_1>;
+};
+
+&etm4 {
+       cpu = <&A53_2>;
+};
+
+&etm5 {
+       cpu = <&A53_3>;
+};

diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index dcfcf15..a7270ef 100644 (file)
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -173,3 +173,27 @@
 
        #include "juno-base.dtsi"
 };
+
+&etm0 {
+       cpu = <&A57_0>;
+};
+
+&etm1 {
+       cpu = <&A57_1>;
+};
+
+&etm2 {
+       cpu = <&A53_0>;
+};
+
+&etm3 {
+       cpu = <&A53_1>;
+};
+
+&etm4 {
+       cpu = <&A53_2>;
+};
+
+&etm5 {
+       cpu = <&A53_3>;
+};