ARM: dts: imx6q: add PMU

Add ARM Cortex A9 Performance Monitor Unit (PMU) support.
On i.MX6 a combined interrupt on hardware line #126 is used
(i.MX6 TRM: Performance Unit interrupt).

For more details see Documentation/devicetree/bindings/arm/pmu.txt

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 06ec460b4581..8f34a3cd2741 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -101,6 +101,11 @@
                         cache-level = <2>;
                 };
 
+                pmu {
+                        compatible = "arm,cortex-a9-pmu";
+                        interrupts = <0 94 0x04>;
+                };
+
                 aips-bus@02000000 { /* AIPS1 */
                         compatible = "fsl,aips-bus", "simple-bus";
                         #address-cells = <1>;