| =============================== |
| 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: <string> |
| Definition: must be "csky,csky-pmu" |
| - interrupts |
| Usage: required |
| Value type: <u32 IRQ_TYPE_XXX> |
| Definition: must be pmu irq num defined by soc |
| - count-width |
| Usage: optional |
| Value type: <u32> |
| Definition: the width of pmu counter |
| |
| Examples: |
| --------- |
| #include <dt-bindings/interrupt-controller/irq.h> |
| |
| pmu: performace-monitor { |
| compatible = "csky,csky-pmu"; |
| interrupts = <23 IRQ_TYPE_EDGE_RISING>; |
| interrupt-parent = <&intc>; |
| count-width = <48>; |
| }; |
