This is necessary to use 'perf' for cache profiling etc.
Tested on cubieboard with 'perf stat echo foo'.
Signed-off-by: Harald Geyer <harald@xxxxxxxxx>
---
arch/arm/boot/dts/sun4i-a10.dtsi | 5 +++++
1 file changed, 5 insertions(+)
While looking into this, I noticed that the dtsi files for the allwinner
SoCs have no information about caches in them. Is this on purpose?
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 5d46bb0139fa..a2fb473cbb9d 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -184,6 +184,11 @@
status = "disabled";
};
+ pmu {
+ compatible = "arm,cortex-a8-pmu";
+ interrupts = <3>;
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <1>;
--
2.11.0
