Messages in this thread | | | Date | Thu, 1 Aug 2013 21:45:52 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH] ARM: dma-mapping: highbank: Restrict DMA to 32-bit addresses |
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On Thu, Aug 01, 2013 at 10:40:47PM +0200, Andreas Herrmann wrote: > > Some devices on Calxeda ECX-2000 are restricted to 32-bit DMA. Thus > the platform needs to set dma_zone_size, otherwise dma-mapping code is > complaining, e.g. > > calxedaxgmac fff50000.ethernet: coherent DMA mask 0xffffffff is smaller than system > GFP_DMA mask 0xffffffffffffffff > > Same is true for sata_highbank. For the latter dma_coherent_mask could > be increased but due to the lack of DMA32 zone we need to adapt > arm_dma_limit in general.
Please wait until I post my dma mask patches. Thanks.
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