CONFIG_DEBUG_RCAR_GEN1_SCIF0 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Kernel low-level debugging messages via SCIF0 on R8A7778
configname: CONFIG_DEBUG_RCAR_GEN1_SCIF0
Kernel low-level debugging port
└─>Kernel low-level debugging messages via SCIF0 on R8A7778
In linux kernel since version 3.19 (release Date: 2015-02-08)
Say Y here if you want kernel low-level debugging support
via SCIF0 on Renesas R-Car M1A (R8A7778).
via SCIF0 on Renesas R-Car M1A (R8A7778).