CONFIG_UCSIMM is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k

uCsimm module support

modulename: ucsimm.ko

configname: CONFIG_UCSIMM

Linux Kernel Configuration
└─>uCsimm module support
In linux kernel since version 2.6.12  
Support for the Arcturus Networks uCsimm module.

source code: