ARM: mvebu: Enable Performance Monitor Unit on Armada XP/370 SoCs

The Armada 370 and XP SoCs have Cortex-A9 compatible CPUs, and with a
Performance Monitoring Unit.

Enable it so that we can have hardware-assisted perf support.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 7b3393e264f8..ec96f0b36346 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -73,6 +73,11 @@
                 };
         };
 
+        pmu {
+                compatible = "arm,cortex-a9-pmu";
+                interrupts-extended = <&mpic 3>;
+        };
+
         soc {
                 #address-cells = <2>;
                 #size-cells = <1>;