CONFIG_BF54xM is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BF54xM.
Result is shown for kernelversion 6.7-rc3

CONFIG_BF54xM (not configurable)

configname: CONFIG_BF54xM

Linux Kernel Configuration
└─>BF54xM
In linux kernel since version 2.6.29 (release Date: 2009-03-23)