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1===============================2C-SKY Performance Monitor Units3===============================4 5C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and6it could count cpu's events for helping analysis performance issues.7 8============================9PMU node bindings definition10============================11 12 Description: Describes PMU13 14 PROPERTIES15 16 - compatible17 Usage: required18 Value type: <string>19 Definition: must be "csky,csky-pmu"20 - interrupts21 Usage: required22 Value type: <u32 IRQ_TYPE_XXX>23 Definition: must be pmu irq num defined by soc24 - count-width25 Usage: optional26 Value type: <u32>27 Definition: the width of pmu counter28 29Examples:30---------31#include <dt-bindings/interrupt-controller/irq.h>32 33 pmu: performace-monitor {34 compatible = "csky,csky-pmu";35 interrupts = <23 IRQ_TYPE_EDGE_RISING>;36 interrupt-parent = <&intc>;37 count-width = <48>;38 };39