[U-Boot] "Embedding" default script with uboot image

[Zatkovský Dušan]

Really nobody?

--
Dusan

Dňa 22. 9. 2015 o 14:20 Zatkovský Dušan napísal(a):
> Hi all,
>
> Excuse my question if it was solved somewhere in forum, but I didn't 
> found an answer yet (maybe I can't find the right keywords).
>
> I am building the uboot with yocto for imx6 board. I have started with 
> some freescale defaults,
> edited environment for my needs, saved environment etc ... Now I want 
> to create a custom
> "default" boot script, that will do some "heurestics", such as "look 
> if usb stick is present, then boot from it, else boot from emmc, etc...".
> Currently I am storing that script on first partition on emmc and 
> loading it with ext2load.
>
> But it has drawbacks:
> - user should delete that file -> brick
> - user should broke entire filesystem -> brick
>
> I want this script to be "embedded" somehow with uboot image (which is 
> placed outside partition table on device), but I didn't found any doc 
> how to do that.
> Currently I use CONFIG_EXTRA_ENV_SETTINGS for some basic stuffbut it 
> is unmaintainable for bigger scripts.
>
> Any suggestions?
>
> Thank you.
> -- 
> Dusan
>