Bug#969070: $console handling might result in unbootable system

[Andre Heider <a.heider@gmail.com>]

On 04/09/2020 09:20, Heinrich Schuchardt wrote:
> On 04.09.20 07:20, Andre Heider wrote:
> > On 04/09/2020 03:10, Vagrant Cascadian wrote:
> > > On 2020-08-28, Andre Heider wrote:
> > > > Stats:
> > > > Going by u-boot upstream, only 17 of +700 boards set $console (grep for
>
> You seem
>
> > > > CONFIG_DEFAULT_CONSOLE, which too is deprecated).
>
> I found no CONFIG_DEFAULT_CONSOLE is deprecated?

That's just by going by
- only a few configs use it
- it's listed in scripts/config_whitelist.txt, so knobs not yet 
converted to Kconfig

> On the Wandboard Quad which is one of the elder boards we have:
>
> => echo $console
> ttymxc0
>
> It is defined here:
>
> include/configs/wandboard.h:48: "console=ttymxc0\0" \

That...

<snip>

> include/configs/odroid.h
> include/configs/odroid_xu3.h
> include/configs/s5p_goni.h
> include/configs/s5pc210_universal.h
> include/configs/trats.h
> include/configs/trats2.h

and all of these are 32bit arm boards, which is likely a can of worms to 
open at this point in time. I'm not sure we want to go there, that's why 
I proposed to only change the 64bit arm bootscript.

Thanks,
Andre