CONFIG_CPU_S5PC100_CLOCK is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_S5PC100_CLOCK (not configurable)

modulename: s5pc100-clock.ko

configname: CONFIG_CPU_S5PC100_CLOCK

Linux Kernel Configuration
└─>CPU_S5PC100_CLOCK
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Common clock support code for the S5PC1XX

source code: