iMX35 3stack framebuffer problem

Baruch Siach baruch at
Tue Oct 11 03:01:56 EDT 2011

Hi Boaz,

On Tue, Oct 11, 2011 at 08:57:15AM +0200, Boaz Ben-David wrote:
> On 10/11/11 08:54, Robert Schwebel wrote:
>     On Tue, Oct 11, 2011 at 08:40:52AM +0200, Boaz Ben-David wrote:
>         Yes, I didn't mention it, but I tried your suggestion. It works
>         (meaning there's no flicker) but
>         the problem is that the screen is blank for about 8 seconds before I
>         have control again to init it.
>         People here said they prefer flicker over 8 seconds of blank time...
>     This is why we have a framebuffer / video driver framework in Barebox.
>     We do not have a driver for MX35 yet, but that could of course be
>     changed.
>     On the other hand, I'm wondering why it needs 8 s until you see
>     something on the Linux side. We have an MX35 system here which runs at
>     532 MHz, and it needs about 1 s from power-on into Linux userspace, so
>     we decided to show the splash screen from there.
>     rsc
> The kernel size is almost 5MB (it includes an initramfs).
> 8 seconds are from the time I call "bootm uImage" and until the init script in
> the initramfs kicks in.
> If I can seriously shorten this time I will be glad to know, maybe there's
> something I missed.
> Any input will be appreciated.

This presentation (by Robert Schwebel) specifically mentions Barebox on 


                                                     ~. .~   Tk Open Systems
   - baruch at - tel: +972.2.679.5364, -

More information about the barebox mailing list