#include / { cpus { #address-cells = <1>; #size-cells = <0>; enable-method = "sigma,tango4-smp"; cpu0: cpu@0 { compatible = "arm,cortex-a9"; next-level-cache = <&l2cc>; device_type = "cpu"; reg = <0>; }; cpu1: cpu@1 { compatible = "arm,cortex-a9"; next-level-cache = <&l2cc>; device_type = "cpu"; reg = <1>; }; }; pmu { compatible = "arm,cortex-a9-pmu"; interrupt-affinity = <&cpu0>, <&cpu1>; interrupts = , ; }; };