0001 SPEAr cpufreq driver
0002 -------------------
0003
0004 SPEAr SoC cpufreq driver for CPU frequency scaling.
0005 It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems
0006 which share clock across all CPUs.
0007
0008 Required properties:
0009 - cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the
0010 increasing order.
0011
0012 Optional properties:
0013 - clock-latency: Specify the possible maximum transition latency for clock, in
0014 unit of nanoseconds.
0015
0016 Both required and optional properties listed above must be defined under node
0017 /cpus/cpu@0.
0018
0019 Examples:
0020 --------
0021 cpus {
0022
0023 <...>
0024
0025 cpu@0 {
0026 compatible = "arm,cortex-a9";
0027 reg = <0>;
0028
0029 <...>
0030
0031 cpufreq_tbl = < 166000
0032 200000
0033 250000
0034 300000
0035 400000
0036 500000
0037 600000 >;
0038 };
0039
0040 <...>
0041
0042 };
