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C-SKY Performance Monitor Units
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C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and
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it could count cpu's events for helping analysis performance issues.
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============================
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PMU node bindings definition
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============================
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Description: Describes PMU
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PROPERTIES
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- compatible
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Usage: required
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Value type: <string>
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Definition: must be "csky,csky-pmu"
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- interrupts
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Usage: required
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Value type: <u32 IRQ_TYPE_XXX>
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Definition: must be pmu irq num defined by soc
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- count-width
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Usage: optional
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Value type: <u32>
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Definition: the width of pmu counter
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Examples:
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---------
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#include <dt-bindings/interrupt-controller/irq.h>
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pmu: performace-monitor {
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compatible = "csky,csky-pmu";
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interrupts = <23 IRQ_TYPE_EDGE_RISING>;
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interrupt-parent = <&intc>;
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count-width = <48>;
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};
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