Atmel Quad SPI Controller

modulename: atmel-quadspi.ko

configname: CONFIG_SPI_ATMEL_QUADSPI

Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>Device Tree and Open Firmware support
└─>Atmel Quad SPI Controller
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This enables support for the Quad SPI controller in master mode.
This driver does not support generic SPI. The implementation only
supports spi-mem interface.

source code:
drivers/spi/atmel-quadspi.c