AR933X serial port support

modulename: ar933x_uart.ko

configname: CONFIG_SERIAL_AR933X

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>AR933X serial port support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
If you have an Atheros AR933X SOC based board and want to use the
built-in UART of the SoC, say Y to this option.

To compile this driver as a module, choose M here: the
module will be called ar933x_uart.

source code: