ARM: dts: at91: sama5d2: add ETM and ETB nodes

Add node to support SAMA5D2 Embedded Trace Macrocell and Embedded
Trace Buffer.

This patch depends on coresight-etm3x: Add ARM ETM-A5 peripheral ID
for proper coresight functionality.
It also depends on clocksource: timer-atmel-pit: enable mck to not
stall SAMA5D2 on bootup.

Signed-off-by: Olivier Schonken <olivier.schonken@gmail.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 353d0e5ec83b..7173ec9059a1 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -77,6 +77,35 @@
                 interrupts = <2 IRQ_TYPE_LEVEL_HIGH 0>;
         };
 
+        etb {
+                compatible = "arm,coresight-etb10", "arm,primecell";
+                reg = <0x740000 0x1000>;
+
+                clocks = <&mck>;
+                clock-names = "apb_pclk";
+
+                port {
+                        etb_in: endpoint {
+                                slave-mode;
+                                remote-endpoint = <&etm_out>;
+                        };
+                };
+        };
+
+        etm {
+                compatible = "arm,coresight-etm3x", "arm,primecell";
+                reg = <0x73C000 0x1000>;
+
+                clocks = <&mck>;
+                clock-names = "apb_pclk";
+
+                port {
+                        etm_out: endpoint {
+                                remote-endpoint = <&etb_in>;
+                        };
+                };
+        };
+
         memory {
                 reg = <0x20000000 0x20000000>;
         };