CONFIG_DEBUG_OMAP3UART3 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)
configname: CONFIG_DEBUG_OMAP3UART3
Kernel low-level debugging port
└─>Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)
In linux kernel since version 3.1 (release Date: 2011-10-24)
This covers at least cm_t3x, beagle, crane, devkit8000,
igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
and 3517evm.
igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
and 3517evm.