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