[U-Boot] framebuffer and video on mx51 babbage

[U-Boot] framebuffer and video on mx51 babbage

[T.J. Staley]

Hello,

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).


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.

Again, very new to all things u-boot, and just hoping to get a bump in the
right direction from someone a little more familiar.

[U-Boot] framebuffer and video on mx51 babbage

[Stefano Babic]

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

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================

[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@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
>
> --
> =====================================================================
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
> =====================================================================
>

[U-Boot] framebuffer and video on mx51 babbage

[Stefano Babic]

T.J. Staley wrote:
> Hi Stefano,
> 

Hi Jacob,

> 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.

Ok, let see if they have something newer.

> 
> 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.

At the moment, the mx51evk is not yet ported to the last u-boot release,
where relocation takes place even for ARM - so you get an error if you
try to compile with the last release. I have not a board at the moment,
but I think I can have it for some time very soon to make the required
changes. No surprise if (as other ARM based boards) if the imx51evk does
not compile at the moment.

> 
> 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.

Patches will be sent, as usual, to the ML for review. Then everyone can
take them and, if it is possible, test them and send feedback.

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================