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38 lines
904 B
38 lines
904 B
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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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