On Fri 2014-11-28 12:27:19, Tony Lindgren wrote:

* Pali Roh?r [off-list ref] [141127 03:34]:

quoted

On Thursday 27 November 2014 02:12:04 Tony Lindgren wrote:

quoted

Thinking about this probably the best long term solution is
to pass optional board_revision in the kernel cmdline that
can be parsed early and copied to system_rev variable.

Not possible. Our bootloader is closed & proprietary. I tried to 
replace it with u-boot I was not able to do that. So we will use 
that Nokia closed bootloader forever and it can provide data only 
in ATAG structure.

I'm using just mainline u-boot flashed as kernel for nolo that
then loads the kernel.

For passing the board revision using the pass through u-boot is
probably the best long term solution. U-boot can read the ATAGs
from nolo and modify the .dtb for the revision information.

Are you saying there are some issues with that?

Plenty :-).

Basically, u-boot is great for production (select one of kernels and
boot it), but pretty much unusable for development:

1) It does not support backlight, so you are interacting blind

2) Setup to load kernels over usb would probably be interesting

3) It makes kernel fail in interesting ways depending on phase of
moon.

Please, keep nolo supported. Debugging kernel & user space is bad,
debugging u-boot & kernel & user space would be even worse.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html