On Thu, 15 Oct 2009 08:26:15 +1100, Benjamin Herrenschmidt wrote: > On Wed, 2009-10-14 at 23:02 +0200, Jean Delvare wrote: > > Hi all, > > > > On Tue, 13 Oct 2009 11:49:48 +0200, Jean Delvare wrote: > > > I2C bus being setup too fast sounds more likely. It might be worth > > > adding an arbitrary delay after initialization, just to see if it > > > helps. Not sure where though, as I'm not familiar with the Powermac > > > initialization steps. Maybe right before i2c_add_adapter() in > > > i2c_powermac_probe? > > > > Tim, can you please give a try to this patch? Obviously your machine > > will take 5 additional seconds to boot, and this isn't meant as a real > > fix, but if it helps, this will be an interesting hint for further > > debugging attempts. > > Oh, I was actually thinking about the frequency of the I2C clock :-)
Oh. Well, if that was the case, we would see errors all the time, not just during initialization, right? Or does the I2C clock frequency change over time somehow? -- Jean Delvare _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
