Linux/EVMK2H: How to modify u-boot?

Sheraz Javaid

Part Number: EVMK2H

Tool/software: Linux

Hi,

I need to modify the u-boot. I need instructions on how to modify it, specifically i need to remove the 3 second waiting time before EVM enters autoboot.

Best Regards

Sheraz Javaid

over 8 years ago

0 prabhuraj tavag20 over 8 years ago

Expert 2020 points

Hi Sheraz,
Have a look at the below link to set the bootdelay to 0 :
processors.wiki.ti.com/.../Change_U-Boot_bootdelay_setting

If you do so, you cannot enter the uboot console. So, you can try to set CONFIG_ZERO_BOOTDELAY_CHECK as well through which you can enter the console even if the bootdelay is 0.

Thanks,
Prabhuraj
BlackPepper Technologies

0 Cvetolin Shulev-XID over 8 years ago

TI__Guru 65405 points

Hi Sheraz,

You have no need to modify the u-boot source to configure it to boot with no delay. The simplest way is to set bootdelay environment variable to 0. For more detail see u-boot environment variable description at:

Also you can change the value of CONFIG_BOOTDELAY in u-boot config file and then rebuild the u-boot. For more details refer to u-boot README file:

Tsvetolin Shulev

Processors

Processors forum

Linux/EVMK2H: How to modify u-boot?