Hi Geert, On Aug 29, 2016, Geert Uytterhoeven wrote: >> Instead of hard coding EXTAL only, check if EXTAL was specified. If >> not, then assume the USB clock is used as the main system clock. >> >> Signed-off-by: Chris Brandt <chris.brandt@xxxxxxxxxxx> > > What's the rationale behind this change? I'm thinking about beyond Renesas boards. People are making RZ/A1 boards with just the USB clock to save on BOM costs since 384MHz vs 400MHz is not enough of a drop to care about. And of course, having someone make this kind of selection in the DT is better than forcing them to hack the clock file. Chris