DC21285 serial port support

modulename: 21285.ko

configname: CONFIG_SERIAL_21285

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>DC21285 serial port support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
PCI bridge you can enable its onboard serial port by enabling this
option.

source code: