Am 03.12.2010 17:34, schrieb Albert ARIBAUD: > In addition to making sure that register reads/write are not bitten by > caching, note that some controllers have DMA capabilities which require > proper cache handling for DMA memory buffers -- typically flushing them > from cache before a DMA to the device, and invalidating their cache > entries after a DMA from the device.
This is true. DMA and caching can be a lot of fun for a driver developer :-) But I can guarantee that the network driver doesn't use any DMA transfer as the hardware doesn't support it. Thanks Matthias Weißer _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
