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

Enable ICACHE

configname: CONFIG_BFIN_ICACHE

Linux Kernel Configuration
└─>Blackfin Processor Options
└─>Enable ICACHE
In linux kernel since version 2.6.24 (release Date: 2008-01-24)