CONFIG_DEBUG_R7S9210_SCIF2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Kernel low-level debugging messages via SCIF2 on R7S9210
configname: CONFIG_DEBUG_R7S9210_SCIF2
Kernel low-level debugging port
└─>Kernel low-level debugging messages via SCIF2 on R7S9210
In linux kernel since version 5.1 (release Date: 2019-05-05)
Say Y here if you want kernel low-level debugging support
via SCIF2 on Renesas RZ/A2M (R7S9210).
via SCIF2 on Renesas RZ/A2M (R7S9210).