[PATCH 2/2] ARM: dts: at91: sama5d2: add ETM, ETB and ETMCK node

Boris Brezillon boris.brezillon at free-electrons.com
Mon Jul 4 13:26:48 PDT 2016


On Mon, 4 Jul 2016 18:02:03 +0200
Alexandre Belloni <alexandre.belloni at free-electrons.com> wrote:

> On 04/07/2016 at 11:08:42 +0200, Olivier Schonken wrote :
> > That is the dilemma I face with the structure.  What is the least
> > invasive option to include the coresight functionality, without
> > breaking the amba probe for other architectures that rely on it having
> > a clock to enable/disable, and not break the processor startup by
> > messing with stable clocks for the sake of giving the ETB/ETM a clock
> > it doesn't need.
> > That is why in the end I decided on a dummy clock driver.  To keep
> > with the convention of having a clock specific to the ETM, and leaving
> > the rest of the clocks as is.
> >   
> 
> Well, the issue is in the pit driver, see the patch I just sent. With
> both of your patches, I got my sama5d2 xplained botting fine.
> 

You mean, replacing the reference to the dummy clk by a reference to
mck, right?



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