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VPIF DMA configuration

Erez Erez
Prodigy 20 points

I am working on a video driver that is based on an existing video driver, Due to HW design I need to change the DAM parameters.

I found that the VPIF port is set in vpif_capture.c but couldn't find where the DMA is configured.

In which file and how can I change the DMA configuration?

  • 0
    Guru 11260 points

    Hi Erez,

    Which hardware are you working on dm6467/da850 ?

    general the configuration for EDMA is done in board files , you can find it in <linux_kernel_dir>/arch/arm/mach-davinci/board-  file.

    Thx,

    --Prabhakar Lad

  • 0 in reply to Prabhakar Lad
    Prodigy 20 points

    Thanks for your reply/

    I am using the da850.

    I looked in the board files and couldn't find how the VPIF DMA is configured.

    Can you point me to the file or function that configures the DMA?

    Is there a document that describes the power up and configuration procedure?