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AlexGo's avatar
AlexGo
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6 years ago

Alternate driver for Avalon-MM DMA for PCIe

Hi All, If anyone is interested in a Linux device driver for Avalon-MM DMA for PCIe? The existing reference design code is quite difficult to maintain, while the alternate solution basically boils d...
AlexGo's avatar
AlexGo
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6 years ago

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!

  • MehmetFide's avatar
    MehmetFide
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    3 years ago

    Hi @AlexGo ,

    Thank you for the drivers. I could clone your repo and integrated it into our Linux 5.4.193 for iMX8M-Plus processor.

    Whole image contains avalon-dma and avalon-drv has been build successfully using yocto.

    I could successfully tested DMA and PCIe bus connected to our iMX8M-Plus platform using AN690 provided by Intel.

    But I'm not happy with the way they implemented the driver therefore I want to try yours as well.

    I'm going to test it on Arria 10 SX Development board.

    But before that, could you give me some hints for the avalon-tool and required structure for the FPGA side? 

    Do you have a FPGA Quartus project which can work with default driver parameters directly?

    Thank you.