CONFIG_DEBUG_BCMBCA is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_DEBUG_BCMBCA.
Result is shown for kernelversion 6.13-rc7
Kernel low-level debugging on BCMBCA UART0
modulename: board_bcmbca.ko
configname: CONFIG_DEBUG_BCMBCA
Kernel low-level debugging port
└─>Kernel low-level debugging on BCMBCA UART0