CONFIG_DEBUG_CNS3XXX is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_DEBUG_CNS3XXX.
Result is shown for kernelversion 6.9.9
Kernel Kernel low-level debugging on Cavium Networks CNS3xxx
configname: CONFIG_DEBUG_CNS3XXX
Kernel low-level debugging port
└─>Kernel Kernel low-level debugging on Cavium Networks CNS3xxx
In linux kernel since version 3.1 (release Date: 2011-10-24)
Say Y here if you want the debug print routines to direct
their output to the CNS3xxx UART0.
their output to the CNS3xxx UART0.