blob: 4dccf07389851eac70ed1a018815d0385a68400a [file] [log] [blame]
From bbf364d897c5a614e21560badd00bcccc736a51f Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Mon, 7 May 2018 15:57:01 +0200
Subject: [PATCH 1416/1795] ARM: dts: r8a7790: Add PMU device nodes
Enable support for the ARM Performance Monitor Units in the Cortex-A15
and Cortex-A7 CPU cores on R-Car H2 by adding device nodes for the two
PMUs.
New Linux output:
hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
hw perfevents: /pmu-1: failed to probe PMU!
hw perfevents: /pmu-1: failed to register PMU devices!
The last two lines are due to the Cortex-A7 CPU cores being described in
DT, but not enabled by the firmware.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 5b68384469af764caa2c02f2c651409c6930c767)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
arch/arm/boot/dts/r8a7790.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 47a51cd71434..4d06b154bd7e 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -202,6 +202,24 @@
clock-frequency = <0>;
};
+ pmu-0 {
+ compatible = "arm,cortex-a15-pmu";
+ interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ pmu-1 {
+ compatible = "arm,cortex-a7-pmu";
+ interrupts-extended = <&gic GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+ <&gic GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>;
+ };
+
/* External SCIF clock */
scif_clk: scif {
compatible = "fixed-clock";
--
2.19.0