Medfield High Speed UART support

modulename: mfd.ko

configname: CONFIG_SERIAL_MFD_HSU

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Medfield High Speed UART support
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
source code:
drivers/tty/serial/mfd.c