linux-kernel - Re: [PATCH 2/2] arm64: dts: h6: Add watchdog node

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Message-ID: <CAGb2v65wcEAUTwRhC42iRkPaWXLGX1CJeq+TSzHVTOrT+L=8vA@mail.gmail.com>
Date:   Fri, 5 Apr 2019 22:35:08 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Clément Péron <peron.clem@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Icenowy Zheng <icenowy@...c.io>,
        Jagan Teki <jagan@...rulasolutions.com>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/2] arm64: dts: h6: Add watchdog node

On Fri, Apr 5, 2019 at 5:02 PM Maxime Ripard <maxime.ripard@...tlin.com> wrote:
>
> On Thu, Apr 04, 2019 at 03:57:36PM +0200, Clément Péron wrote:
> > Allwinner H6 has a watchog compatible with A31.
> >
> > Declare it in the device tree.
> >
> > Signed-off-by: Clément Péron <peron.clem@...il.com>
>
> Applied both, thanks!
> Maxime

IIRC there are 3 watchdogs on the H6. One is the trusted watchdog,
which should be reserved for underlying firmware.

The other two are the normal and R-block watchdog. Although they
look the same, the "normal" one can't reset the system. :(
That one is actually the one ATF currently uses. So reboot doesn't
work on the H6.

ChenYu