Console on PowerMac z85c30 serial port

configname: CONFIG_SERIAL_PMACZILOG_CONSOLE

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Console on PowerMac z85c30 serial port
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you would like to be able to use the z85c30 serial port
on your PowerMac as the console, you can do so by answering
Y to this option.