From: Nickhu <nickhu@xxxxxxxxxxxxx>
The document for how to add NDS32 PMU
in devicetree.
Signed-off-by: Nickhu <nickhu@xxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
.../devicetree/bindings/perf/nds32v3-pmu.txt | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
create mode 100644 Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
diff --git a/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt b/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
new file mode 100644
index 000000000000..1bd15785b4ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
@@ -0,0 +1,17 @@
+* NDS32 Performance Monitor Units
+
+NDS32 core have a PMU for counting cpu and cache events like cache misses.
+The NDS32 PMU representation in the device tree should be done as under:
+
+Required properties:
+
+- compatible :
+ "andestech,nds32v3-pmu"
+
+- interrupts : The interrupt number for NDS32 PMU is 13.
+
+Example:
+pmu{
+ compatible = "andestech,nds32v3-pmu";
+ interrupts = <13>;
+}
--
2.17.0
