linux-kernel - Re: [PATCH RESEND] ARM: ep93xx: Disable TS-72xx watchdog before uncompressing

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Message-ID: <2082981.zMc11d8l12@wuerfel>
Date:   Tue, 07 Feb 2017 16:05:08 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Hartley Sweeten <HartleyS@...ionengravers.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "arm@...nel.org" <arm@...nel.org>,
        "olof@...om.net" <olof@...om.net>,
        "khilman@...nel.org" <khilman@...nel.org>,
        Ryan Mallon <rmallon@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "moderated list:ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] ARM: ep93xx: Disable TS-72xx watchdog before uncompressing

On Thursday, February 2, 2017 8:43:52 PM CET Hartley Sweeten wrote:
> On Thursday, February 02, 2017 1:12 PM, Florian Fainelli wrote:
> > The TS-72xx/73xx boards have a CPLD watchdog which is configured to
> > reset the board after 8 seconds, if the kernel is large enough that this
> > takes about this time to decompress the kernel, we will encounter a
> > spurious reboot.
> >
> > Do not pull ts72xx.h, but instead locally define what we need to disable
> > the watchdog.
> >
> > Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> > ---
> > Arnd, this is a recent, so you can queue this up, thanks!
> 
> Reviewed-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
> 
> or Tested-by/Acked-by as appropriate...
> 

Too bad, this really gets in the way of a future multiplatform
ep93xx configuration as that doesn't easily allow us to have
board specific hacks in the decompressor.

Applied to next/soc with Hartley's reviewed-by tag.

It's not clear from your description if this is needed for stable
backports. If it is, please write to stable@...r.kernel.org
once it is merged upstream.

	Arnd