Re: BananaPi M2 support

[Sergey Suloev]

Hi, ChenYu,

I have tried to build and run linux-next  by tag  "next-20201117".
Now the boot log looks different but the kernel still hangs. See 
https://pastebin.com/gFk7XuBc

Thank you,
Sergey


On 17.11.2020 11:06, Chen-Yu Tsai wrote:
> Hi,
>
> Please try linux-next. There were some regulator fixes that got merged recently.
> One of them fixes an infinite recursion when resolving regulator supplies.
>
> ChenYu
>
> On Tue, Nov 17, 2020 at 1:12 AM Sergey Suloev <ssuloev@xxxxxxxxxxxxx> wrote:
> > Hi, Maxime,
> >
> > it just hangs on that last lines and nothing happens anymore, see 5.18 log.
> >
> >
> > On 16.11.2020 18:52, Maxime Ripard wrote:
> > > Hi,
> > >
> > > On Sat, Nov 14, 2020 at 08:20:54PM +0300, Sergey Suloev wrote:
> > > > Hi,
> > > >
> > > > I noticed that BananaPi M2 (A31 SoC) does not boot anymore on modern
> > > > kernels. The problem arises somewhere between 5.7.19 - 5.8.18. I have saved
> > > > boot logs for both versions https://pastebin.com/DTRZi8R7  and
> > > > https://pastebin.com/PS2hq07A. Logs have been taken on clean/non-patched
> > > > kernel with default config, u-boot v2020.10.
> > > >
> > > > The kernel versions 5.7.x and below work well (I tried 5.5.19 and 5.6.19).
> > > > The versions 5.8.18 and above all fail (5.9 and 5.10).
> > > >
> > > > Could you look at the problem or provide an advice about further
> > > > investigation, please ?
> > > I'm not quite sure what the issue is exactly? How does it fail to boot?
> > >
> > > Maxime
> >
> > Thank you,
> > Sergey