| SPEAr cpufreq driver |
| ------------------- |
| |
| SPEAr SoC cpufreq driver for CPU frequency scaling. |
| It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems |
| which share clock across all CPUs. |
| |
| Required properties: |
| - cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the |
| increasing order. |
| |
| Optional properties: |
| - clock-latency: Specify the possible maximum transition latency for clock, in |
| unit of nanoseconds. |
| |
| Both required and optional properties listed above must be defined under node |
| /cpus/cpu@0. |
| |
| Examples: |
| -------- |
| cpus { |
| |
| <...> |
| |
| cpu@0 { |
| compatible = "arm,cortex-a9"; |
| reg = <0>; |
| |
| <...> |
| |
| cpufreq_tbl = < 166000 |
| 200000 |
| 250000 |
| 300000 |
| 400000 |
| 500000 |
| 600000 >; |
| }; |
| |
| <...> |
| |
| }; |
