Add device tree entries for PMU of ARM CCI-400.
$ sudo ./perf stat -a -C 0 -e CCI_400/config=0xff,name=cycles/ sleep 1
Performance counter stats for 'system wide':
420,303,619 cycles
1.019058775 seconds time elapsed
Tested on Odroid-xu3 and 4.
Signed-off-by: Willy Wolff <willy.mh.wolff.ml@xxxxxxxxx>
---
arch/arm/boot/dts/exynos5420.dtsi | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index aaff15880761..be58650aca35 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -158,7 +158,7 @@
#address-cells = <1>;
#size-cells = <1>;
reg = <0x10d20000 0x1000>;
- ranges = <0x0 0x10d20000 0x6000>;
+ ranges = <0x0 0x10d20000 0x10000>;
cci_control0: slave-if@4000 {
compatible = "arm,cci-400-ctrl-if";
@@ -170,6 +170,16 @@
interface-type = "ace";
reg = <0x5000 0x1000>;
};
+
+ pmu@9000 {
+ compatible = "arm,cci-400-pmu,r0";
+ reg = <0x9000 0x5000>;
+ interrupts = <0 105 4>,
+ <0 101 4>,
+ <0 102 4>,
+ <0 103 4>,
+ <0 104 4>;
+ };
};
clock: clock-controller@10010000 {
--
2.11.0
