ARM: dt: Add ARM PMU to tegra*.dtsi

This enables HW performance measurements, and usage of the "perf" tool.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 3195ad5562d3..d2bc7e7ad06d 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -17,6 +17,12 @@
                       < 0x50040100 0x0100 >;
         };
 
+        pmu {
+                compatible = "arm,cortex-a9-pmu";
+                interrupts = <0 56 0x04
+                              0 57 0x04>;
+        };
+
         apbdma: dma@6000a000 {
                 compatible = "nvidia,tegra20-apbdma";
                 reg = <0x6000a000 0x1200>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index fd25e8e9ffd9..e957051f8645 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -17,6 +17,14 @@
                       < 0x50040100 0x0100 >;
         };
 
+        pmu {
+                compatible = "arm,cortex-a9-pmu";
+                interrupts = <0 144 0x04
+                              0 145 0x04
+                              0 146 0x04
+                              0 147 0x04>;
+        };
+
         apbdma: dma@6000a000 {
                 compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
                 reg = <0x6000a000 0x1400>;