[microblaze-uclinux] DMA

[Jim Van Vorst <jvanvorst@xxxxxxxxx>]

Has anyone gotten the OPB DMA controller to work?  I'm just trying to 
DMA between cacheable regions of DDR and it's really flaky.  I've tried 
all kinds of combinations of enabling/disabling/invalidating cache and 
it still either occasionally hangs or results in incorrect data.    It 
does seem to work consistently between non-cacheable regions.  I saw 
some traffic about using DMA for memcpy.  Did that ever go anywhere?

Thanks,
Jim


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