Alternate driver for Avalon-MM DMA for PCIe

I am not quite sure what is your question, but here is some explanation (I updated my previous message as well):

avalon-dma - DMA engine driver that provides generic interface to the Avalon DMA engine;

avalon-drv - sample driver that uses avalon-dma engine interface;

avalon-drv-tool - sample user-level utility that uses avalon-drv interface to execute DMAs;

The Linux version used is upstream v5.3-rc8.

It is not big deal to backport it to any earlier version.

HTH

Thanks!