Re: Fwd: Barebox 2017.02 works great but no Linux Framebuffer... :-/

[Sascha Hauer <s.hauer@pengutronix.de>]

Hi Gianluca,

On Mon, Jun 19, 2017 at 05:49:41PM +0200, gianluca wrote:
> Hello Lucas, Sascha and the barebox mailing list guys!
> 
> I am back with the new boards batch release (now QuadPlus and DualLite iMX6)
> 
> Now I adapted barebox to fit both processors and it works quite well.
> 
> From Barebox point-of-view the ldb node of the device-tree is using three
> timings and they are working good depending on which panel bridge board I am
> connecting to (1280x800, 1024x600 and 800x480).
> 
> The custom startup code of barebox is looking for a special eeprom on the
> panel-bridge and set the device tree accordingly, i.e. setting the
> native-mode node to the correct display-timing.
> 
> The same device-tree is used in Linux (as in attachment) as you can see the
> ldb section and the panel section, using a simple-panel and a correct panel
> timing using the innolux,g101ice_l01 panel driver timings.
> 
> > 
> > > No, Linux does not support DT defined modes in the panel. You need a
> > > panel with a proper compatible and driver.
> > > 
> > > See drivers/gpu/drm/panel. For most LVDS panels simple-panel is what you
> > > want to use.
> > > 
> 
> They are ignored in the Barebox starup (as you know barebox can use the
> display-timings in the ldb section) but the panel section is used in linux.
> 
> Nevertheless it does not work.

What exactly does not work? No picture in barebox? Any error messages?
Does it work in Linux?

Sascha

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