i.MX6 frame buffer inside barebox?

Sascha Hauer s.hauer at pengutronix.de
Wed Jun 25 22:55:16 PDT 2014

On Wed, Jun 25, 2014 at 03:46:28PM +0200, Holger Schurig wrote:
> I just noticed that simplefb wouldn't work with i.MX6 anyway, even if
> I adapt it.
> When I setup the framebuffer from barebox and display a splash and
> then boot into Linux, then my framebuffer vanishes. Even when I don't
> have simplefb or ipu enabled.
> I think (!) the reason is the clock framework.The clocks for the IPU
> are turned off, and so I don't see anything anymore (this is, however,
> a wild assumption, I haven't checked it yet).

You're probably right. You could check that with passing
'clk_ignore_unused' to the kernel.
Indeed I remember that we tweaked the clocks in a project we used
simplefb in.


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