This patch adds support for coresight components.  More specifically
it has definitions for the A53/57 tracers, the A53/57 cluster funnels,
the main funnel and the ETF configured in circular buffer mode.

Support for other coresight IP blocks have not been addressed yet.

Signed-off-by: Mathieu Poirier <[email protected]>
---
 arch/arm64/boot/dts/arm/juno-base.dtsi | 241 +++++++++++++++++++++++++++++++++
 1 file changed, 241 insertions(+)

diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi 
b/arch/arm64/boot/dts/arm/juno-base.dtsi
index e3ee96036eca..b787f8a9304d 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -152,3 +152,244 @@
 
                /include/ "juno-motherboard.dtsi"
        };
+
+       etf@20010000 {
+               compatible = "arm,coresight-tmc", "arm,primecell";
+               reg = <0 0x20010000 0 0x1000>;
+
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       etf_in_port: endpoint {
+                               slave-mode;
+                               remote-endpoint = <&main_funnel_out_port>;
+                       };
+               };
+       };
+
+       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>;
+
+                       /* output port */
+                       port@0 {
+                               reg = <0>;
+                               main_funnel_out_port: endpoint {
+                                       remote-endpoint =
+                                               <&etf_in_port>;
+                               };
+                       };
+
+                       /*
+                        * input ports:
+                        * port 0: Funnel Cortex-A57
+                        * port 1: Funnel Cortex-A53
+                        * port 2: STM
+                        * port 3: Funnel SCP
+                        * port 4: System profiler
+                        * port 5: ATB extension interfaces
+                        * port 6: ATB extension interfaces
+                        */
+                       port@1 {
+                               reg = <0>;
+                               main_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint =
+                                                       <&A57_funnel_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               main_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A53_etm0_out_port>;
+                               };
+                       };
+
+               };
+       };
+
+       A57_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>;
+
+                       /* output port */
+                       port@0 {
+                               reg = <0>;
+                               A57_funnel_out_port: endpoint {
+                                       remote-endpoint =
+                                               <&main_funnel_in_port0>;
+                               };
+                       };
+
+                       /* input ports */
+                       port@1 {
+                               reg = <0>;
+                               A57_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A57_etm0_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               A57_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A57_etm1_out_port>;
+                               };
+                       };
+
+                       /* input port 2 to 6 are not connected */
+               };
+       };
+
+       A53_funnel@220c0000 {
+               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>;
+
+                       /* output port */
+                       port@0 {
+                               reg = <0>;
+                               A53_funnel_out_port: endpoint {
+                                       remote-endpoint =
+                                               <&main_funnel_in_port1>;
+                               };
+                       };
+
+                       /* input port */
+                       port@1 {
+                               reg = <0>;
+                               A53_funnel_in_port0: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A53_etm0_out_port>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <1>;
+                               A53_funnel_in_port1: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A53_etm1_out_port>;
+                               };
+                       };
+                       port@3 {
+                               reg = <2>;
+                               A53_funnel_in_port2: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A53_etm2_out_port>;
+                               };
+                       };
+                       port@4 {
+                               reg = <3>;
+                               A53_funnel_in_port3: endpoint {
+                                       slave-mode;
+                                       remote-endpoint = <&A53_etm3_out_port>;
+                               };
+                       };
+
+                       /* input port 4 to 6 are not connected */
+               };
+       };
+
+       etm@22040000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x22040000 0 0x1000>;
+
+               cpu = <&A57_0>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A57_etm0_out_port: endpoint {
+                               remote-endpoint = <&A57_funnel_in_port0>;
+                       };
+               };
+       };
+
+       etm@22140000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x22140000 0 0x1000>;
+
+               cpu = <&A57_1>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A57_etm1_out_port: endpoint {
+                               remote-endpoint = <&A57_funnel_in_port1>;
+                       };
+               };
+       };
+
+       etm@23040000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23040000 0 0x1000>;
+
+               cpu = <&A53_0>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A53_etm0_out_port: endpoint {
+                               remote-endpoint = <&A53_funnel_in_port0>;
+                       };
+               };
+       };
+
+       etm@23140000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23140000 0 0x1000>;
+
+               cpu = <&A53_1>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A53_etm1_out_port: endpoint {
+                               remote-endpoint = <&A53_funnel_in_port1>;
+                       };
+               };
+       };
+
+       etm@23240000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23240000 0 0x1000>;
+
+               cpu = <&A53_2>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A53_etm2_out_port: endpoint {
+                               remote-endpoint = <&A53_funnel_in_port2>;
+                       };
+               };
+       };
+
+       etm@23340000 {
+               compatible = "arm,coresight-etm4x", "arm,primecell";
+               reg = <0 0x23340000 0 0x1000>;
+
+               cpu = <&A53_3>;
+               clocks = <&soc_smc50mhz>;
+               clock-names = "apb_pclk";
+               port {
+                       A53_etm3_out_port: endpoint {
+                               remote-endpoint = <&A53_funnel_in_port3>;
+                       };
+               };
+       };
-- 
1.9.1

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