CONFIG_CPU_S3C2443 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
SAMSUNG S3C2443
modulename: s3c2443.ko
configname: CONFIG_CPU_S3C2443
Linux Kernel Configuration
└─>SAMSUNG S3C24XX SoCs Support
└─>SAMSUNG S3C2443
In linux kernel since version 2.6.21 (release Date: 2007-04-25)
Support for the S3C2443 SoC from the S3C24XX line