Hi Ilya, On Mon, Nov 28, 2011 at 5:02 PM, Ilya Yanok <ya...@emcraft.com> wrote: > Hi Christian, > > On 28.11.2011 19:43, Christian Riesch wrote: >>>> What do you mean by "broken"? Is it "never working" or is it "working >>>> sometimes" or "not working under specific conditions"? I have a DA850 >>>> based board and I use the Davinci EMAC driver (CONFIG_DRIVER_TI_EMAC). >>>> I don't have these CONFIG_SYS_xCACHE_OFF defines in my board config >>>> file so I guess D-Cache is enabled. But Ethernet works fine, so what >>>> am I missing here? Is D-Cache disabled somewhere else? >>> >>> Today, right now? I tried a dm365evm back in August on top-of-tree >>> and emac didn't work until I disabled caches. I don't have day-to-day >>> access to that board however to confirm the current state. >> >> Yes, right now. > > I think it's because of: > > commit cba4b1809f043bf85c806e5a4e342f62bd5ded45 > Author: Aneesh V <ane...@ti.com> > Date: Tue Aug 16 04:33:05 2011 +0000 > > arm: do not force d-cache enable on all boards > > c2dd0d45540397704de9b13287417d21049d34c6 added dcache_enable() > to board_init_r(). This enables d-cache for all ARM boards. > As a result some of the arm boards that are not cache-ready > are broken. Revert this change and allow platform code to > take the decision on d-cache enabling. > > Also add some documentation for cache usage in ARM. > > Signed-off-by: Aneesh V <ane...@ti.com> > > Don't you see "WARNING: Caches not enabled" message during boot? >
Ah, yes, I see this warning, no matter whether the CONFIG_SYS_xCACHE_OFF defines are in the config file or not. Regards, Christian > 2Wolfgang: So caches are actually disabled on everything except OMAP... > > Regards, Ilya. > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
