[U-Boot] [RFC] odroid DTB support

[Tom Rini]

On Tue, Oct 13, 2015 at 09:37:04AM +0200, Guillaume Gardet wrote:
> 
> 
> Le 12/10/2015 16:24, Tom Rini a écrit :
> >On Mon, Oct 12, 2015 at 10:54:04AM +0200, Guillaume Gardet wrote:
> >>Hi,
> >>
> >>
> >>Le 12/10/2015 01:45, Tom Rini a écrit :
> >>>On Fri, Oct 09, 2015 at 02:35:24PM +0200, Guillaume Gardet wrote:
> >>>>Le 09/10/2015 14:23, Przemyslaw Marczak a écrit :
> >>>>>Hello Guillaume,
> >>>>>
> >>>>>On 10/09/2015 02:11 PM, Guillaume Gardet wrote:
> >>>>>>Hi Przemyslaw,
> >>>>>>
> >>>>>>I would like to add DTB support for odroid board to be able to boot
> >>>>>>upstream kernel easily.
> >>>>>>
> >>>>>>I see 2 ways to do it:
> >>>>>>* Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support to set 'board_rev'
> >>>>>>and 'board_name' env vars. Then, you need a 'findfdt' script to check
> >>>>>>'board_rev' and set fdtfile accordingly (as done for OMAP4 panda board)
> >>>>>>* Set fdtfile name directly (as done for rpi or igep00x0).
> >>>>>>
> >>>>>>What would you prefer?
> >>>>>>
> >>>>>>
> >>>>>>Guillaume
> >>>>>>
> >>>>>>
> >>>>>Is, that the reason of adding the boot script by your last patches?
> >>>>No, we need a boot script, because this is the way we boot our
> >>>>openSUSE images (we boot with an initrd and some special bootargs).
> >>>Hang on, exynos stuff uses the generic distro hooks.  Can you take a
> >>>look at doc/README.distro and see what openSUSE can hook into / provide
> >>>some feedback on what needs doing?  Thanks!
> >>This is true for odroid XU3 (Exynos5 based) but Odroid U3/X2 (Exynos4
> >>based) has no generic distro hooks at the moment.
> >No, exynos-common pulls in generic distro.  And in the event of boards
> >that do not the answer is to pull in the generic distro framework.
> 
> It seems that exynos-common includes only "config_distro_defaults.h",
> not "config_distro_bootcmd.h".
> And "config_distro_bootcmd.h" is needed for generic distro boot flow.
> Am I missing something?

Ah, good point, OK, thanks.  Yes, instead of introducing more changes,
all of these boards should be migrated to config_distro_bootcmd so that
they just work in openSUSE or Arch or Ubuntu or Fedora or whatever.

-- 
Tom
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