[U-Boot] framebuffer and video on mx51 babbage

[T.J. Staley]

Hi Stefano,

Thanks for the feedback.  I'll contact Freescale to see if there is anything
in the pipeline as far as the support I was looking for.

Judging by your response you seem to be significantly further in the
endeavor of bringing this functionality to the mx51evk (thanks for the
correction).  I'm just starting to get my head around u-boot and the board,
but if I can lend a helping hand please let me know.  I would hate to
reinvent a wheel that just needs some final touches, and of course anything
I might contribute would be released.

I'm very interested in those patches, regardless of their state.  If there
is anyway you can get those out that would be very appreciated.

Regards,
Jacob

On Fri, Oct 8, 2010 at 3:57 PM, Stefano Babic <sbabic at denx.de> wrote:

> T.J. Staley wrote:
> > Hello,
> >
>
> Hi,
>
> > I'm trying to enable framebuffer support to produce a splash image in
> u-boot
> > for a custom image I want displayed.  The idea, for now, is to simply
> > display the splash image to a monitor running off the DVI port on the
> > babbage.  I'm fairly new to all things u-boot, just started digging
> through
> > the docs and source as of yesterday, so I was hoping someone could point
> me
> > in the right direction.
> >
> > Looking at the README it seems I can enable splash screen and video
> support
> > with a define in /include/configs/mx51_bbg.h (working with Freescale's
> BSP).
>
> There is at the moment no video driver for the MX.51 on the u-boot
> mainline. I am not sure about the Freescale's BSP, but as far as I know
> there is no support for the MX51's IPUv3. But I could be wrong, ask
> Freescale for confirm.
>
> However, on this ML you can find issues regarding the u-boot mainline.
> The "babbage" board is renamed on u-boot mainline as "imx51evk", because
> this is the name you find now for this board on the Freescale's website.
> If you have developed something that is not yet provided, feel free to
> send patches and to contribute to the project.
>
> Related to the MX.51 framebuffer support, I am working on the same
> issue. I have ported the Freescale's Linux driver to u-boot, and at
> least it is working, but I am not yet ready to send patches. I am still
> cleaning up code and reducing functionalities, as the IPU supports much
> more as only a framebuffer. Of course, providing patches is on my TODO
> list, and I hope I can send them soon...
>
> > It builds with with the '#define CONFIG_SPLASH_SCREEN', but when I
> include
> > CONFIG_VIDEO it bombs due to an undefined reference (drv_video_init)
> which
> > I'm not backtracking.
>
> I think there is no support for i.MX51's framebuffer at all, as well as
> in u-boot mainline....;-(
>
> Best regards,
> Stefano Babic
>
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