On Mon, Nov 28, 2011 at 5:06 AM, Christian Riesch <christian.rie...@omicron.at> wrote: > Hi, > > On Sun, Nov 27, 2011 at 5:41 PM, Tom Rini <tom.r...@gmail.com> wrote: >> On Sun, Nov 27, 2011 at 8:09 AM, Wolfgang Denk <w...@denx.de> wrote: >>> In message <1321048618-20616-1-git-send-email-ya...@emcraft.com> you wrote: >>>> DaVinci EMAC driver has no support for running with D-Cache enabled so >>>> disable D-Cache on all DaVinci boards with EMAC device. >>>> >>>> Signed-off-by: Ilya Yanok <ya...@emcraft.com> >>>> --- >>>> >>>> I can't test it on any DaVinci boards right now but my understanding >>>> is that currently EMAC driver can't work properly with D-Cache enabled. > > [...] > >>> Why do we have to permanently disable the data cache just because the >>> network driver is broken? USB is also broken, and probably other >>> drivers as well. >> >> To be clear, the problem is that today the driver is broken (not cache >> safe) and this series of patches fixes that problem. In doing so we >> expose that arm926ejs doesn't have complete cache support today. > > 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. -- Tom _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
