linux-kernel - Re: BananaPi M2 support

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Date:   Tue, 17 Nov 2020 16:06:58 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Sergey Suloev <ssuloev@...altech.com>
Cc:     Maxime Ripard <maxime@...no.tech>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: BananaPi M2 support

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@...altech.com> 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
>