Hi Joan Carles, Le Tue, 27 Mar 2012 10:46:45 +0200, joancarles <[email protected]> a écrit : > >> This is still present, and we have absolutely no idea where to > >> continue > >> searching for the solution of the problem. Any pointers? Any git > >> trees > >> of mmc driver changes we could try? Anybody else with a MX25 that > >> has > >> this issue? > >> > > does that attached patch fix your problem ? > > YES, indeed it does to a certain degree. The timeout errors do not > occur anymore and I can successfully perform many fs->ops, such as READ, > WRITE, UNLINK ... . So thank you very much for this insight through your > patch! > > The speed of the card is excruciatingly slow, however. We roughly get > between 34KB/s and 64KB/s from a dd if=/dev/zero write to any of the > following partitions: > I have the same speed problem here on i.MX25 but still haven't found the reason. Shawn, Richard : do you have an idea of why the eSDHC is so slow on i.MX25 ?
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