AT91SAM9G45: MACB: not usable Ethernet when MMU is enabled

Sascha Hauer s.hauer at pengutronix.de
Fri Mar 2 10:35:59 EST 2012


On Fri, Mar 02, 2012 at 03:12:46PM +0200, RONETIX - Asen Dimov wrote:
> Hello everyone,
> 
> the Ethernet on AT91SAM9G45(with ARM926J CPU) is not operational
> when the MMU is enabled.
> Have some met with this issue before and probably solved it?

grep for dma_alloc_coherent, dma_flush_range. This should give you the
hints necessary to make it work.

Sascha

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