[U-Boot] U-Boot: am335x video support

[U-Boot] U-Boot: am335x video support

[Heiko Schocher]

Hello,

is in current U-Boot a lcd driver for the am335x integrated
LCD controller? If yes, also with Splash screen support?

Thanks!

bye,
Heiko
-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

[U-Boot] U-Boot: am335x video support

[Matthias Fuchs]

Hi Heiko,

perhaps you should take a look at the DA8XX driver. At least
under Linux this driver also handles the AM335x.

Splash screen support (meaning support of the splashimage variable)
might be a problem because it expects a direct mapped physical address
where the splash image is stored - typically some onboard nor flash. But
AM335x designs typically have MMC, NAND or SPI flash attached. So you
probably need some commands to load the spashscreen from a flash device
and then use the 'bmp' command to display it. This should work with all
video drivers.

Matthias

On 26.06.2013 08:29, Heiko Schocher wrote:
> Hello,
> 
> is in current U-Boot a lcd driver for the am335x integrated
> LCD controller? If yes, also with Splash screen support?
> 
> Thanks!
> 
> bye,
> Heiko
> 

[U-Boot] U-Boot: am335x video support

[Heiko Schocher]

Hello Matthias,

Am 26.06.2013 08:46, schrieb Matthias Fuchs:
> Hi Heiko,
> 
> perhaps you should take a look at the DA8XX driver. At least
> under Linux this driver also handles the AM335x.

Ah! Hmm... I found only one board, which uses this driver ...
But it is a good starting point I think!

Thanks!

> Splash screen support (meaning support of the splashimage variable)
> might be a problem because it expects a direct mapped physical address
> where the splash image is stored - typically some onboard nor flash. But
> AM335x designs typically have MMC, NAND or SPI flash attached. So you
> probably need some commands to load the spashscreen from a flash device
> and then use the 'bmp' command to display it. This should work with all
> video drivers.

Yep.

bye,
Heiko

> Matthias
> 
> On 26.06.2013 08:29, Heiko Schocher wrote:
>> Hello,
>>
>> is in current U-Boot a lcd driver for the am335x integrated
>> LCD controller? If yes, also with Splash screen support?
>>
>> Thanks!
>>
>> bye,
>> Heiko
>>
> 
> 


-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany