On Thursday 03 November 2016 11:56 PM, Krzysztof Kozlowski wrote:
On Thu, Nov 03, 2016 at 01:42:01AM -0400, Anurup M wrote:
1) Device tree bindings for Hisilicon SoC PMU.
2) Add example for Hisilicon L3 cache, MN and DDRC PMU.
Get rid of this weird indentation in all patches.
Thanks. I shall remove the TAB from the commit message in all patches.
Signed-off-by: Anurup M <anurup.m@xxxxxxxxxx>
Signed-off-by: Shaokun Zhang <zhangshaokun@xxxxxxxxxxxxx>
---
.../devicetree/bindings/arm/hisilicon/pmu.txt | 127 +++++++++++++++++++++
1 file changed, 127 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/hisilicon/pmu.txt
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/pmu.txt b/Documentation/devicetree/bindings/arm/hisilicon/pmu.txt
new file mode 100644
index 0000000..e7b35e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/hisilicon/pmu.txt
@@ -0,0 +1,127 @@
+Hisilicon SoC hip05/06/07 ARMv8 PMU
+===================================
+
+The Hisilicon SoC chips like hip05/06/07 etc. consist of varous independent
+system device PMU's such as L3 cache (L3C), Miscellaneous Nodes(MN) and DDR
+comtroller. These PMU devices are independent and have hardware logic to
+gather statistics and performance information.
+
+HiSilicon SoC chip is encapsulated by multiple CPU and IO die's. The CPU die
+is called as Super CPU cluster (SCCL) which includes 16 cpu-cores. Every SCCL
+is further grouped as CPU clusters (CCL) which includes 4 cpu-cores each.
+e.g. In the case of hip05/06/07, each SCCL has 1 L3 cache and 1 MN PMU device.
+
+The Hisilicon SoC PMU DT node bindigs for uncore PMU devices are as below.
+For PMU devices like L3 cache. MN etc. which are accessed using the djtag,
+the parent node will be the djtag node of the corresponding CPU die(SCCL).
+
+For uncore PMU devices there are some common required properties as detailed
+below.
+
+Required properties:
+ - compatible : This field contain two values. The first value is
+ always "hisilicon" and second value is the Module type as shown
+ in below examples:
Over-complicated sentence. Just:
- compatible : One of:
"hisilicon,hisi-pmu-l3c-v1" for Hisilicon SoC L3C PMU
device (Version 1)
...
...
Thanks. Shall refine it in next version.
BTW, No need of CC-ing me. I am not a maintainer of relevant subsystems.
Sure.
Thanks,
Anurup
Best regards,
Krzysztof
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