CONFIG_UC5272 is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k
default or selected kernelversion does not have config value CONFIG_UC5272.
Result is shown for kernelversion 6.2.5

Arcturus Networks uC5272 dimm board support

configname: CONFIG_UC5272

Linux Kernel Configuration
└─>Arcturus Networks uC5272 dimm board support
In linux kernel since version 2.6.23 (release Date: 2007-10-09)  
Support for the Arcturus Networks uC5272 dimm board.

depends
CONFIG_M5272