CONFIG_CPU_LLSERIAL_S3C2440 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
CONFIG_CPU_LLSERIAL_S3C2440 (not configurable)
configname: CONFIG_CPU_LLSERIAL_S3C2440
Linux Kernel Configuration
└─>CPU_LLSERIAL_S3C2440
In linux kernel since version 2.6.23 (release Date: 2007-10-09)
Selected if there is an S3C2440 (or register compatible) serial
low-level implementation needed
low-level implementation needed