displaying u-boot logo/splash in kernel

bikash bag

Intellectual 420 points

Hi,

I want to display the u-boot logo in kernel in am335x platform.

As suggested in the link "e2e.ti.com/.../313745", with some modification in kernel or u-boot, we can do it.

Please suggest that what modification exactly we have to do to achieve it.

Thanks

Bikash

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi Bikash,

For u-boot please read this entire thread: http://e2e.ti.com/support/arm/sitara_arm/f/791/t/217383 For the kernel there is a splash screen application: http://processors.wiki.ti.com/index.php/Customizing_the_SDK_Splash_Screen

0 bikash bag over 9 years ago in reply to Biser Gatchev-XID

Intellectual 420 points

Hi Biser,
Thanks for your quick response.
I am able to display splash in u-boot and able to modify tux in kernel.
When the u-boot execution over, the splash from u-boot goes out and the screen becomes blank. My intention is to keep on displaying the splash in the lcd till the end of kernel booting without blanking the lcd before kernel booting.

Thanks
Bikash

0 Biser Gatchev-XID over 9 years ago in reply to bikash bag

TI__Guru**** 393215 points

Once the kernel LCD driver and framebuffer are initialized LCD display is done from them. You will need to modify kernel initialization and place your logo in the framebuffer to continue displaying the same screen. Also check whether psplash is used in your build (this is the application that displays the TI logo and progress bar during kernel boot).

0 bikash bag over 9 years ago in reply to Biser Gatchev-XID

Intellectual 420 points

Hi Biser,

I think, I am not able to convey you, what exactly I want.
I don't want to reinitialize the logo again in the kernel.
I just want to keep the splash logo of u-boot in the kernel.
The same initialization of logo in the u-boot should work in kernel.

Thanks
Bikash

0 Biser Gatchev-XID over 9 years ago in reply to bikash bag

TI__Guru**** 393215 points

OK, but if you want to keep the u-boot logo until kernel has booted you have to exclude the kernel LCD driver completely. How are you going to display from kernel then?

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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displaying u-boot logo/splash in kernel