Allwinner GMAC support

modulename: dwmac-sunxi.ko

configname: CONFIG_DWMAC_SUNXI

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>Device Tree and Open Firmware support
└─>Allwinner GMAC support
In linux kernel since version 3.14 (release Date: 2014-03-30)  
Support for Allwinner A20/A31 GMAC ethernet controllers.

This selects Allwinner SoC glue layer support for the
stmmac device driver. This driver is used for A20/A31
GMAC ethernet controller.

source code:
drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c