ARM: tegra: Add Tegra124 PMU support

This patch modifies the device tree for Tegra124 based devices to enable
the Cortex A15 PMU. The interrupt numbers are taken from NVIDIA Tegra K1
TRM (DP-06905-001_v03p). This patch was tested on a Jetson TK1.

Signed-off-by: Kyle Huey <khuey@kylehuey.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index f72a7529fc039d575c13502e2f3c47ba8f5b32e1..a3df6737649b6039fa9acacf6c4ce2db740b2025 100644 (file)
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -980,6 +980,18 @@
                };
        };
 
+       pmu {
+               compatible = "arm,cortex-a15-pmu";
+               interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-affinity = <&{/cpus/cpu@0}>,
+                                    <&{/cpus/cpu@1}>,
+                                    <&{/cpus/cpu@2}>,
+                                    <&{/cpus/cpu@3}>;
+       };
+
        thermal-zones {
                cpu {
                        polling-delay-passive = <1000>;