S3C2440/S3C2442 CPU Frequency scaling support

modulename: s3c2440-cpufreq.ko

configname: CONFIG_ARM_S3C2440_CPUFREQ

Linux Kernel Configuration
└─>S3C2440/S3C2442 CPU Frequency scaling support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.

source code:
drivers/cpufreq/s3c2440-cpufreq.c