1SPEAr cpufreq driver 2------------------- 3 4SPEAr SoC cpufreq driver for CPU frequency scaling. 5It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems 6which share clock across all CPUs. 7 8Required properties: 9- cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the 10 increasing order. 11 12Optional properties: 13- clock-latency: Specify the possible maximum transition latency for clock, in 14 unit of nanoseconds. 15 16Both required and optional properties listed above must be defined under node 17/cpus/cpu@0. 18 19Examples: 20-------- 21cpus { 22 23 <...> 24 25 cpu@0 { 26 compatible = "arm,cortex-a9"; 27 reg = <0>; 28 29 <...> 30 31 cpufreq_tbl = < 166000 32 200000 33 250000 34 300000 35 400000 36 500000 37 600000 >; 38 }; 39 40 <...> 41 42}; 43