Commit d6a7f73d authored by Mischa Jonker's avatar Mischa Jonker Committed by Vineet Gupta

ARC: Add documentation on DT binding for ARC700 PMU

Signed-off-by: default avatarMischa Jonker <mjonker@synopsys.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 0dd450fe
* ARC Performance Monitor Unit
The ARC 700 can be configured with a pipeline performance monitor for counting
CPU and cache events like cache misses and hits.
Note that:
* ARC 700 refers to a family of ARC processor cores;
- There is only one type of PMU available for the whole family;
- The PMU may support different sets of events; supported events are probed
at boot time, as required by the reference manual.
* The ARC 700 PMU does not support interrupts; although HW events may be
counted, the HW events themselves cannot serve as a trigger for a sample.
Required properties:
- compatible : should contain
"snps,arc700-pmu"
Example:
pmu {
compatible = "snps,arc700-pmu";
};
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