CONFIG_HAVE_AT91_DBGU2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_HAVE_AT91_DBGU2.
Result is shown for kernelversion 5.15.67
CONFIG_HAVE_AT91_DBGU2 (not configurable)
configname: CONFIG_HAVE_AT91_DBGU2
Linux Kernel Configuration
└─>HAVE_AT91_DBGU2