Dear Tom Rini, > On Fri, Jun 29, 2012 at 12:01:58AM +0200, Marek Vasut wrote: > > Dear Tom Rini, > > > > > On 06/28/2012 07:37 AM, Marek Vasut wrote: > > > > Dear Ilya Yanok, > > > > > > > >> Dear Marek, > > > >> > > > >> 28.06.2012 02:48, Marek Vasut wrote: > > > >>>> 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. > > > >> > > > >> Really? Don't forget my old patch [1] then ;) > > > >> Still I think we should rip off all the cache stuff from ehci-hcd > > > >> until all patches for upper layers are included. Again, this stuff > > > >> doesn't do proper things now anyway and USB won't work with dcache > > > >> enabled. > > > > > > > > Have you tested? I enabled dcache on m28 and tried asix ethernet > > > > (needed a patch) and loading from ext2 and vfat (worked). > > > > > > So then we have more places that accidentially aligned to 32bytes since > > > this does not work on TI parts which require 64byte alignment. > > > > Oh, this is very good it's broken. People actually started whining. Now > > we have to wait until they start identifying the problematic places and > > fixing them. > > Uh-hunh. So I guess for v2012.07 we'll build-time disable dcache for > beagle and omap3_evm
Didn't you fix the issues? > and leave it on for mcx and see who has time and > hardware to fix things for v2012.10. Or we fix it for mcx too until .07 is out ? Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot