Synopsys DesignWare AHB DMA platform driver

modulename: dw_dmac.ko

configname: CONFIG_DW_DMAC

Linux Kernel Configuration
└─>Device Drivers
└─>DMA Engine support
└─>Synopsys DesignWare AHB DMA platform driver
In linux kernel since version 2.6.27 (release Date: 2008-10-09)  
Support the Synopsys DesignWare AHB DMA controller. This
can be integrated in chips such as the Atmel AT32ap7000.

source code:
drivers/dma/dw/