Hi all, I am using Montavista Linux (2.6.10) tha came on the Evaluation board, with the lastest updates from "DM355 DVEVM Software Updates".
I am having the same problems as Tom reported, randomly the codec gets isolated and I lost connectivity with the board. Curious thing is that the board still stream the encoded video through UDP. I have seen that with patches the problem gets resolved but it seems that they are for linux git and not for Montavista. Can I apply this patches to Montavista linux? If so can you please tell me how can I download this patch? If I cannot apply the patch, can you please tell me if there is any other way to manage this problem? Thanks in advance, A.Silva On Sat, May 2, 2009 at 12:52 PM, Steve Chen <[email protected]> wrote: > On Fri, 2009-05-01 at 11:47 -0700, David Brownell wrote: > > On Friday 01 May 2009, Kevin Hilman wrote: > > > In debugging this, I've noticed that only using the banked IRQ along > > > with some strategically placed printk's also gets things working > > > without the direct IRQ. This suggests there's a timing problem or > > > race someplace that needs flushing out. > > > > Right, that's much the same as noting that LOCKDEP alone > > makes it behave fine (for me). > > > > There's also that patch (from Sneha?) that changed the dm9000 > > driver TX path a bit. > > In my spare time, I'm looking to use DMA for dm9000 to off load the > dm355. So far, I have the transmit DMA working under light traffic > load. When I run performance bench mark, the dm9000 stops working. I'm > using the MV 2.6.18 kernel, so I'm not sure if this is related to what > Kevin is seeing. > > > > > I looked at the AEMIF timings, and they didn't look wrong. > > One phase seemed maybe longer than necessary, but not wrong. > > > > Another experiment: does setting the dm9000 to trigger on > > both edges (vs just one) help? > > The code was originally written this way. During DM355 chip bring up, > it was discovered that the dm9000 can only handle rising edge. Having > trigger from both edges made the performance much worse. > > Regards, > > Steve > > > > > - Dave > > > > > > _______________________________________________ > > Davinci-linux-open-source mailing list > > [email protected] > > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > > > _______________________________________________ > Davinci-linux-open-source mailing list > [email protected] > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source >
_______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
