[PATCH 1/3] arm64: dts: juno: add coresight support
Sudeep Holla
sudeep.holla at arm.com
Mon Jun 6 08:59:23 PDT 2016
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: Liviu Dudau <liviu.dudau at arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
Cc: linux-arm-kernel at lists.infradead.org
Cc: devicetree at vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla at arm.com>
---
arch/arm64/boot/dts/arm/juno-base.dtsi | 296 +++++++++++++++++++++++++++++++++
arch/arm64/boot/dts/arm/juno-r1.dts | 24 +++
arch/arm64/boot/dts/arm/juno-r2.dts | 24 +++
arch/arm64/boot/dts/arm/juno.dts | 24 +++
4 files changed, 368 insertions(+)
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index dee2386d3b9b..90a8710f7032 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -56,6 +56,302 @@
<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 at 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 at 0 {
+ reg = <0>;
+ etf_in_port: endpoint {
+ slave-mode;
+ remote-endpoint = <&main_funnel_out_port>;
+ };
+ };
+
+ /* output port */
+ port at 1 {
+ reg = <0>;
+ etf_out_port: endpoint {
+ remote-endpoint = <&replicator_in_port0>;
+ };
+ };
+ };
+ };
+
+ tpiu at 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 at 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 at 0 {
+ reg = <0>;
+ main_funnel_out_port: endpoint {
+ remote-endpoint = <&etf_in_port>;
+ };
+ };
+
+ port at 1 {
+ reg = <0>;
+ main_funnel_in_port0: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster0_funnel_out_port>;
+ };
+ };
+
+ port at 2 {
+ reg = <1>;
+ main_funnel_in_port1: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster1_funnel_out_port>;
+ };
+ };
+
+ };
+ };
+
+ etr at 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>;
+ };
+ };
+ };
+
+ 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 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>;
+ };
+ };
+ };
+ };
+
+ cluster0_funnel at 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 at 0 {
+ reg = <0>;
+ cluster0_funnel_out_port: endpoint {
+ remote-endpoint = <&main_funnel_in_port0>;
+ };
+ };
+
+ port at 1 {
+ reg = <0>;
+ cluster0_funnel_in_port0: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster0_etm0_out_port>;
+ };
+ };
+
+ port at 2 {
+ reg = <1>;
+ cluster0_funnel_in_port1: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster0_etm1_out_port>;
+ };
+ };
+ };
+ };
+
+ cluster1_funnel at 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 at 0 {
+ reg = <0>;
+ cluster1_funnel_out_port: endpoint {
+ remote-endpoint = <&main_funnel_in_port1>;
+ };
+ };
+
+ port at 1 {
+ reg = <0>;
+ cluster1_funnel_in_port0: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster1_etm0_out_port>;
+ };
+ };
+
+ port at 2 {
+ reg = <1>;
+ cluster1_funnel_in_port1: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster1_etm1_out_port>;
+ };
+ };
+ port at 3 {
+ reg = <2>;
+ cluster1_funnel_in_port2: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster1_etm2_out_port>;
+ };
+ };
+ port at 4 {
+ reg = <3>;
+ cluster1_funnel_in_port3: endpoint {
+ slave-mode;
+ remote-endpoint = <&cluster1_etm3_out_port>;
+ };
+ };
+ };
+ };
+
+ etm0: etm at 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>;
+ };
+ };
+ };
+
+ etm1: etm at 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 at 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>;
+ };
+ };
+ };
+
+ etm3: etm at 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 at 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 at 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>;
+ };
+ };
+ };
+
sram: sram at 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 d95d9e7e2dc0..f4f8f54f8b85 100644
--- 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 88ecd6182b67..d903e545b64c 100644
--- 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 dcfcf15a17f5..a7270eff6939 100644
--- 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>;
+};
--
2.7.4
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