CONFIG_CPU_S5PC100 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
CONFIG_CPU_S5PC100 (not configurable)
configname: CONFIG_CPU_S5PC100
Linux Kernel Configuration
└─>CPU_S5PC100
In linux kernel since version 2.6.32 (release Date: 2009-12-02)
Enable S5PC100 CPU support