CONFIG_SYS_HAS_CPU_MIPS64_R5 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
CONFIG_SYS_HAS_CPU_MIPS64_R5 (not configurable)
configname: CONFIG_SYS_HAS_CPU_MIPS64_R5
Linux Kernel Configuration
└─>CPU selection
└─>SYS_HAS_CPU_MIPS64_R5