I think you can try to compare versus SAMv7 SPI+DMA driver that is working
well and see if there are obvious differences.

BR,
Petro

On Wed, May 17, 2023, 9:18 PM Simon Filgis <si...@ingenieurbuero-filgis.de>
wrote:

> D-Cache flush?
>
> --
> Ingenieurbüro-Filgis
> USt-IdNr.: DE305343278
> --
> sent by mobile phone
>
> Tim Hardisty <t...@hardisty.co.uk> schrieb am Mi., 17. Mai 2023, 20:05:
>
> > I am working on getting DMA working on the SPI peripheral of the SAMA5D2.
> >
> > DMA reads now work well, but the writes take absolutely forever…unless I
> > have dma debug info enabled, when write transactions (to a GD25Q flash)
> do
> > then work.
> >
> > I’m working through it, as it sounds like a race condition or other
> > timing/sequence problem but if anyone by any chance has encountered
> > anything similar, clues or suggestions would be most welcome!
> >
> > Thx,
> >
> > Tim
> >
>

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