CONFIG_ARCH_N5X is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
default or selected kernelversion does not have config value CONFIG_ARCH_N5X.
Result is shown for kernelversion 5.13-rc2
Intel's eASIC N5X SoCFPGA Family
configname: CONFIG_ARCH_N5X
Linux Kernel Configuration
└─>Platform selection
└─>Intel's eASIC N5X SoCFPGA Family
In linux kernel since version 5.12 (release Date: 2021-04-25)
This enables support for Intel's eASIC N5X SoCFPGA Family.