From mboxrd@z Thu Jan  1 00:00:00 1970
From: jiri.prchal@aksignal.cz (=?UTF-8?B?SmnFmcOtIFByY2hhbA==?=)
Date: Thu, 21 May 2015 14:41:38 +0200
Subject: at91sam9: watchdog: period
In-Reply-To: <20150519120433.763a416e@bbrezillon>
References: <55559D55.6020703@aksignal.cz>	<20150515172516.005e3a21@bbrezillon>	<5559865F.9010502@aksignal.cz>	<20150518092750.449d6c8c@bbrezillon>	<5559A029.9060007@aksignal.cz>	<555AA8F1.80100@atmel.com>	<20150519091442.675b1a98@bbrezillon>	<555AFBFD.3010506@aksignal.cz>	<20150519111402.747e8eb2@bbrezillon>	<555B07D0.4030000@aksignal.cz>
 <20150519120433.763a416e@bbrezillon>
Message-ID: <555DD282.3090508@aksignal.cz>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 19.5.2015 12:04, Boris Brezillon wrote:
>
> Anyway, that does not explain why your system takes 61 secs to trigger
> a reset (instead of 16 secs).
> Can you try to revert this commit [1] ?
>
>
> [1]https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/watchdog/at91sam9_wdt.c?id=d677772e1358924bf487cd833bdc4d50f3f6f64d

I reverted this commit: still 61s.
By the way, between
# [  109.117117] at91sam9_wdt: I will reset your machine !
and
RomBOOT
is another 27s.
Whole watchdog reboot sequence is about 90s!
Slow clock is measured by counter as 32786Hz.