blob: f3578d76c4dabbfb36e094c56874b30dcd333555 [file] [log] [blame]
From d2cb5528eb2d742a958589405ac7c4c59f7c6ff3 Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Thu, 21 Nov 2019 01:18:34 +0000
Subject: [PATCH] arm64: dts: allwinner: H5: Add PMU node
commit c35a516a46187c8eeb7a56c64505ec6f7e22a0c7 upstream.
Add the Performance Monitoring Unit (PMU) device tree node to the H5
.dtsi, which tells DT users which interrupts are triggered by PMU
overflow events on each core.
As with the A64, the interrupt numbers from the manual were wrong (off
by 4), the actual SPI IDs have been gathered in U-Boot, and were
verified with perf in Linux.
Tested with perf record and taskset on an OrangePi PC2.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index f002a496d7cb..1d34e3eefda3 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -54,21 +54,21 @@
enable-method = "psci";
};
- cpu@1 {
+ cpu1: cpu@1 {
compatible = "arm,cortex-a53";
device_type = "cpu";
reg = <1>;
enable-method = "psci";
};
- cpu@2 {
+ cpu2: cpu@2 {
compatible = "arm,cortex-a53";
device_type = "cpu";
reg = <2>;
enable-method = "psci";
};
- cpu@3 {
+ cpu3: cpu@3 {
compatible = "arm,cortex-a53";
device_type = "cpu";
reg = <3>;
@@ -76,6 +76,16 @@
};
};
+ pmu {
+ compatible = "arm,cortex-a53-pmu",
+ "arm,armv8-pmuv3";
+ interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
psci {
compatible = "arm,psci-0.2";
method = "smc";
--
2.7.4