0001 ===============================
0002 C-SKY Performance Monitor Units
0003 ===============================
0004
0005 C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and
0006 it could count cpu's events for helping analysis performance issues.
0007
0008 ============================
0009 PMU node bindings definition
0010 ============================
0011
0012 Description: Describes PMU
0013
0014 PROPERTIES
0015
0016 - compatible
0017 Usage: required
0018 Value type: <string>
0019 Definition: must be "csky,csky-pmu"
0020 - interrupts
0021 Usage: required
0022 Value type: <u32 IRQ_TYPE_XXX>
0023 Definition: must be pmu irq num defined by soc
0024 - count-width
0025 Usage: optional
0026 Value type: <u32>
0027 Definition: the width of pmu counter
0028
0029 Examples:
0030 ---------
0031 #include <dt-bindings/interrupt-controller/irq.h>
0032
0033 pmu: performace-monitor {
0034 compatible = "csky,csky-pmu";
0035 interrupts = <23 IRQ_TYPE_EDGE_RISING>;
0036 interrupt-parent = <&intc>;
0037 count-width = <48>;
0038 };
