arm64: dts: r8a7796: Add Cortex-A53 PMU node

Enable the performance monitor unit for the Cortex-A53 cores on the
R8A7796 SoC.

Extracted from a patch by Takeshi Kihara in the BSP.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index b32a180..a90abf1 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -303,6 +303,18 @@
                                             <&a57_1>;
                };
 
+               pmu_a53 {
+                       compatible = "arm,cortex-a53-pmu";
+                       interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-affinity = <&a53_0>,
+                                            <&a53_1>,
+                                            <&a53_2>,
+                                            <&a53_3>;
+               };
+
                cpg: clock-controller@e6150000 {
                        compatible = "renesas,r8a7796-cpg-mssr";
                        reg = <0 0xe6150000 0 0x1000>;