CONFIG_SOM5282EM is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k
default or selected kernelversion does not have config value CONFIG_SOM5282EM.
Result is shown for kernelversion 6.2.5

EMAC.Inc SOM5282EM board support

configname: CONFIG_SOM5282EM

Linux Kernel Configuration
└─>EMAC.Inc SOM5282EM board support
In linux kernel since version 2.6.14 (release Date: 2005-10-27)  
Support for the EMAC.Inc SOM5282EM module.

depends
CONFIG_M528x