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Date: Fri, 16 Dec 2016 08:21:02 -0800
From: Tony Lindgren <tony@atomide.com>
To: Pali =?utf-8?B?Um9ow6Fy?= <pali.rohar@gmail.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>,
        Russell King - ARM Linux <linux@armlinux.org.uk>,
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        Aaro Koskinen <aaro.koskinen@iki.fi>, Pavel Machek <pavel@ucw.cz>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm: dt: Initialize boot_command_line from
 CONFIG_CMDLINE in case DT does not provide /chosen/bootargs
Message-ID: <20161216162102.GG4920@atomide.com>
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* Pali Rohár <pali.rohar@gmail.com> [161216 08:14]:
> On Friday 16 December 2016 16:40:30 Tony Lindgren wrote:
> > * Javier Martinez Canillas <javier@osg.samsung.com> [161216 04:54]:
> > > On 12/16/2016 09:48 AM, Pali Rohár wrote:
> > > >>> saying that it cause problems which need to be properly fixed.
> > > >>> And if fixing them is harder and will take more time, then
> > > >>> correct option is to revert 008a2ebcd677 due to breaking
> > > >>> support for more devices.
> > > >> 
> > > >> If you think that others boards may have the same issue, then
> > > >> you could add an empty chosen node to omap3.dtsi. As I said I
> > > >> think that in practice this will only be needed for the
> > > >> machines using NOLO but you are right that in theory you could
> > > >> boot them using other bootloaders and having an empty node
> > > >> doesn't cause any harm anyway.
> > > > 
> > > > Should not be it part of any arm board? IIRC ATAG support is (or
> > > > was) not omap3 specified.
> > > 
> > > Yes, but you were talking about commit 008a2ebcd677 which only
> > > removed skeleton.dtsi usage for OMAP3 boards. The same can be done
> > > for other SoCs in its top level dtsi for the SoC family of course.
> > 
> > Yeah probaby best to add the empty chosen node to the ones that had
> > skeleton.dtsi removed.
> 
> Ok. But still I think that it should be added globally to all arm board 
> which can be booted by ATAG bootloader.

Hmm you mean by the decompressor?

> > And I think the code should print a warning if no chosen node is
> > found?
> 
> Which code? Decompressor? Yes, it should but I do not know if at that 
> time is (serial) console usable...

Oh right, never mind..

Tony