From: Guenter Roeck <linux@roeck-us.net>
To: Gabor Juhos <juhosg@openwrt.org>, Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Subject: Re: [PATCH] watchdog: ath79_wdt: avoid spurious restarts on AR934x
Date: Sat, 26 Apr 2014 08:34:39 -0700 [thread overview]
Message-ID: <535BD20F.6020103@roeck-us.net> (raw)
In-Reply-To: <1397640881-21741-1-git-send-email-juhosg@openwrt.org>
On 04/16/2014 02:34 AM, Gabor Juhos wrote:
> On some AR934x based systems, where the frequency of
> the AHB bus is relatively high, the built-in watchdog
> causes a spurious restart when it gets enabled.
>
> The possible cause of these restarts is that the timeout
> value written into the TIMER register does not reaches
> the hardware in time.
>
> Add an explicit delay into the ath79_wdt_enable function
> to avoid the spurious restarts.
>
> Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
> Cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
next prev parent reply other threads:[~2014-04-26 15:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-16 9:34 [PATCH] watchdog: ath79_wdt: avoid spurious restarts on AR934x Gabor Juhos
2014-04-26 15:34 ` Guenter Roeck [this message]
2014-05-26 19:02 ` Wim Van Sebroeck
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