Loongson2 CPUFreq Driver

modulename: loongson2_cpufreq.ko

configname: CONFIG_LOONGSON2_CPUFREQ

Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Frequency scaling
└─>Loongson2 CPUFreq Driver
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
This option adds a CPUFreq driver for loongson processors which
support software configurable cpu frequency.

Loongson2F and its successors support this feature.

If in doubt, say N.

source code: