CONFIG_ARCH_CO285 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_CO285.
Result is shown for kernelversion 5.4.123

Co-EBSA285

modulename: co285.ko

configname: CONFIG_ARCH_CO285

ARM system type
└─>Co-EBSA285
In linux kernel since version 2.6.12  
source code:
/arch/arm/mach-footbridge/