On Fri, Jun 29, 2012 at 11:33:09AM +0200, Marek Vasut wrote: > > I did not check spec, > > is it possible the supplied clock changed? > > It's possible indeed ... Shawn? > It's technically possible, but probably not practically. The imx28 RM does not mention i2c clock at all, and I was told by designer that i2c always runs at the same frequency as apbx, which sources from ref_xtal (always 24 MHz). Though there is a divider for apbx clock, it seems every single running system sets the divider as 1 all the time. That said, what I have seen is the i2c clock is always 24 MHz.
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