Inbound PCI and Memory Corruption

Scott Wood scottwood at freescale.com
Sat Jul 20 03:44:33 EST 2013


On 07/18/2013 05:02:33 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-07-18 at 14:30 -0700, Peter LaDow wrote:
> > We are still stumped on this one, but during a review of the system
> > setup one thing came up that we aren't sure about is the device tree
> > and the DMA engine.
> >
> > It does seem that for incoming PCI transactions the Freescale DMA
> > engine is not used.  And in our device tree we have the DMA engine
> > commented out.  That is, the "fsl,mpc8349-dma" and "fsl,elo-dma"
> > compatible items are not present in the FDT.
> >
> > I don't suppose this could be a problem?
> 
> I doubt it but somebody from FSL might be able to give a better  
> answer.

The DMA engine is not related to inbound PCI transactions.

-Scott


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