CONFIG_CPU_FR451 is not available for thedefaultarchitecture x86.
Result is shown for architecture frv
default or selected kernelversion does not have config value CONFIG_CPU_FR451.
Result is shown for kernelversion 6.7-rc3
Include FR451 core support
configname: CONFIG_CPU_FR451
Linux Kernel Configuration
└─>Fujitsu FR-V system setup
└─>CPU core support
└─>Include FR451 core support
In linux kernel since version 2.6.12
This enables support for the FR451 CPU