Dear Ilya Yanok, > Hi, > > 21.06.2012 02:14, Tom Rini wrote: > > USB EHCI and DCACHE are not compatible, so disable DCACHE support at > > build-time as run-time disable is insufficient for USB use. > > Sorry for missing this discussion. I think compile-time disabling of the > cache is too brutal. > ehci-hcd cache handling is broken anyway: doing unaligned > flushes/invalidates is a bug, and we know for sure that upper layers > don't care about alignment (and I bet ehci-hcd does this even for its > internal buffers). So what's the point in all this cache handling in > ehci-hcd? It's not going to work anyway and just produces problems. So I > suggest to just disable all this stuff until generic code will be fixed. > Alternatively we can do bounce-buffering inside driver.
We should rather introduce generic bounce buffer. But the upper layers are getting fixed recently so we should be getting there. > > Regards, Ilya. Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
