Console on bcm63xx serial port

configname: CONFIG_SERIAL_BCM63XX_CONSOLE

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Console on bcm63xx serial port
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
If you have enabled the serial port on the bcm63xx CPU
you can make it the console by answering Y to this option.