[fedora-arm] Update on Allwinner / sunxi u-boot support

[Dennis Gilmore]

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On Fri, 01 Aug 2014 00:20:19 +0200
Hans de Goede <hdegoede at redhat.com> wrote:

> Hi,
> 
> On 07/31/2014 02:58 PM, Dennis Gilmore wrote:
> > On Thu, 31 Jul 2014 10:16:00 +0200
> > Hans de Goede <hdegoede at redhat.com> wrote:
> > 
> >> Hi,
> > 
> >> On 07/30/2014 10:48 AM, Hans de Goede wrote:
> >>> Hi Dennis et al,
> >>>
> >>> As you may have heard Ian Campbell and I have become u-boot
> >>> custodians for sunxi boards.
> >>>
> >>> As such we've been working hard to get sunxi support into
> >>> shape for the upcoming v2014.10 release.
> >>>
> >>> Yesterday sun4i (the original A10) and sun5i (A13 / A10s)
> >>> support got merged to complete the existing sun7i (A20) support,
> >>> as well as most of the PSCI code needed to do smp + hyp mode on
> >>> the A20.
> >>>
> >>> I've just send a pull-request adding AHCI, EHCI and PSCI support +
> >>> support for 14 new boards. You can find the branch for this here:
> >>>
> >>> http://git.denx.de/?p=u-boot/u-boot-sunxi.git;a=shortlog
> >>>
> >>> So assuming that F-21 will use v2014.10 that should put us in
> >>> pretty good shape wrt sunxi support. I would like to make sure
> >>> that Fedora can use upstream u-boot as-is. AFAIK we still need
> >>> to do some work wrt unified distro support /
> >>> config_distro_defaults.h e.g. I think we need to specify the dts
> >>> file name for each board config somewhere for thinks to work ootb,
> >>> correct ?
> >>>
> >>> Dennis, can you provide a minimal patch on top of the above branch
> >>> needed to get things to work ootb on one board, e.g. the
> >>> cubietruck ?
> > 
> >> A quick update on this, Stephen Warren (nvidia) has posted an
> >> updated version of your "config: introduce a generic $bootcmd",
> >> and that just got Acked, so hopefully that will make it into
> >> v2014.10:
> > 
> >> http://patchwork.ozlabs.org/patch/375060/
> > 
> >> It would be nice to also sunxi converted to this upstream.
> > 
> >> This means that you need to post a conversion patch this weekend
> >> the latest, otherwise it will be too late for the freeze (freezes
> >> in u-boot are based on the posting of v1 of a patch).
> > 
> >> I can try to do this myself this weekend, but chances are that
> >> I won't have time for this.
> > 
> > I can try and get something together for you. I was not planning on
> > using 2014.10 at all. But I think that given whats going in, we
> > should move to it. I do need to get a Fedora 21 Test Compose out
> > this week. sorry for the slow response, because i was directly
> > copied on the email it went though an unusual path of my procmail
> > recipes and ended up in a folder I do not often check. as it gets
> > mostly spam.
> 
> Ok, so I've managed to get write a patch for this myself, currently it
> only sets the dtb filename for the bananapi, I will add to all the
> other boards tomorrow and then submit it upstream, in the mean time
> you can find it here:
> 
> https://github.com/jwrdegoede/u-boot-sunxi/commits/next
> 
> The last commit there is a slightly cleaned-up version of your:
> "automatically add console= to bootline when not existing"
> 
> patch, I would also like to submit that one upstream, may I add
> your (Dennis)' Signed-off-by to it ?

NAK, I was planning to drop the patch entirely, while its useful in
some cases, it breaks things like plymouth working, as well it will
force anaconda installs to always be text over the serial port.
wandboard and cubox-i for instance boot happily without a console= line
and you get plymouth on the screen when video is initialised. having it
add the console line if u-boot has the console set to serial would be
okay. I think it needs some more thought and careful planning. 

Dennis
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