On Sun, 15 Mar 2015 12:12:00 +0100
Paul Kocialkowski <cont...@paulk.fr> wrote:
> Le mardi 24 février 2015 à 11:58 +0200, Siarhei Siamashka a écrit :
> > On Sat, 21 Feb 2015 16:47:20 +0100
> > Hans de Goede <hdego...@redhat.com> wrote:
> >
> > > Hi all,
> > >
> > > Newer u-boot versions may chose a different (better) PLL6 / PLL5 setting
> > > and/or different voltage settings. Unfortunately the old linux-sunxi-3.4
> > > kernels have a number of hardcoded assumptions about PLL5 speed, and in
> > > some
> > > cases override the bootloader chosen PLL6 / voltages in a bad way.
> > >
> > > This patch series fixes this and is intended for the sunxi-3.4 branch. The
> > > first 2 patches are already in sunxi-3.4/staging, but they should really
> > > also
> > > be added to the sunxi-3.4 branch. The 2 new patches should be added to
> > > both.
> > >
> > > Note that sunxi-3.4/staging currently does not work for me (on sun5i at
> > > least)
> > > (*) so these patches have only been tested on the sunxi-3.4 branch.
> > >
> > > Regards,
> > >
> > > Hans
> > >
> > > *) It does not boot at all for some reason, not a single message is
> > > printed
> > > on the serial console after u-boot has loaded the kernel. I'm afraid I do
> > > not
> > > have the time to investigate this.
> >
> > Thanks. I will allocate the next few days of my time on checking what's
> > up with sunxi-3.4 and maybe we can make the final "graduation" release
> > for it.
>
> Any news on that front?
Thanks for reminding.
Well, the news is that I could not reproduce the alleged sun5i problem
with the stage/sunxi-3.4 branch on my A13-OLinuXino-Micro board. Which
obviously means that I can't debug it.
Combined with Tsvetan's lack of any sign of response or any indications
that anyone else could be interested, I don't feel very much motivated
to do the "communication" part of the job, which is required to clarify
the status of these 3.4 branches and move them forward.
> I have been trying to boot sunxi-3.4 on sun7i/A20 using upstream U-Boot,
> with no success. I tried the current sunxi-3.4 branch and stage/sunxi-3.4,
> with and without these patches.
>
> It never prints anything on serial.
Most likely you are missing the "setenv bootm_boot_mode sec" line in
your boot.cmd (otherwise the PSCI code in u-boot drops the CPU into
the non-secure mode and the sunxi-3.4 kernel can't handle it).
The documentation in the wiki about the mainline u-boot is in a
pretty much bad shape, but at least this should be covered:
http://linux-sunxi.org/Mainline_U-boot#Boot
Alternatively, there is the old kernel compatibility mode in
u-boot, which can be selected in menuconfig. It should work
with any old sunxi-3.4 kernels.
> On the other hand, I was able to boot mainline Linux (3.19) just fine.
Right. That's what everyone should be using now.
--
Best regards,
Siarhei Siamashka
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