Loongson1 CPUFreq Driver

modulename: loongson1-cpufreq.ko

configname: CONFIG_LOONGSON1_CPUFREQ

Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Frequency scaling
└─>Loongson1 CPUFreq Driver
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This option adds a CPUFreq driver for loongson1 processors which
support software configurable cpu frequency.

If in doubt, say N.

source code: