How to disable console late?

Sascha Hauer s.hauer at pengutronix.de
Wed Jun 25 22:52:09 PDT 2014


On Wed, Jun 25, 2014 at 06:22:04PM +0200, Holger Schurig wrote:
> On my i.MX6 I have CONFIG_CONSOLE_FULL and CONSOLE_ACTIVATE_NONE
> defined. But still my serial is automatically activated as a console.
> 
> barebox:/ devinfo cs0
> Bus: platform
> Parameters:
>   baudrate: 115200
>   active: ioe
> 
> I'd rather active the serial port as a console only if a key is
> pressed during power on. Based on the help text of
> CONFIG_ACTIVATE_NONE, I actually thought that this would happen.
> 
> Any hints?
> 
> 
> I could remove chosen/stdout-path from my DTS and put it in
> on-the-fly? This sounds a bit ugly ...

Indeed you have to remove the stdout-path property from DTS. You don't
have to add it back, 'cs0.active=ioe' should do it. Note we currently
don't have persistent names for the console devices which means that
cs0 is whatever is probed first.

Sascha

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