CONFIG_NIOS2_ARCH_REVISION is not available for thedefaultarchitecture x86.
Result is shown for architecture nios2
Select Nios II architecture revision
configname: CONFIG_NIOS2_ARCH_REVISION
Linux Kernel Configuration
└─>Platform options
└─>Select Nios II architecture revision
In linux kernel since version 4.2 (release Date: 2015-08-30)
Select between Nios II R1 and Nios II R2 . The architectures
are binary incompatible. Default is R1 .
are binary incompatible. Default is R1 .