From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] watchdog/imx_watchdog: do not set WCR_WDW
Date: Thu, 26 Mar 2015 09:02:26 +0100 [thread overview]
Message-ID: <5513BD12.6030301@linutronix.de> (raw)
In-Reply-To: <5512D9F7.2040601@denx.de>
On 03/25/2015 04:53 PM, Stefano Babic wrote:
> On 03/03/2015 17:45, Sebastian Andrzej Siewior wrote:
>> with WCR_WDW set, the watchdog won't trigger if we bootet linux and idle
>> around while the watchdog is not triggered. It seems the timer makes
>> progress very slowly if at all. I managed to remain 20minutes alive
>> while the timeout was set to 60secs. It reboots within 60secs if I start
>> a busyloop in userland (something like "while (1) { }").
>>
>> While I don't see a reason why the WDT should not be running while the
>> CPU is in idle, I'm dropping this bit.
>>
>> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>> ---
>
> Applied to u-boot-imx, thanks !
Thanks. What just came to mind: In case you do suspend-to-mem. Would
the watchdog trigger then? I am not sure and I have no way to test?
> Best regards,
> Stefano Babic
Sebastian
next prev parent reply other threads:[~2015-03-26 8:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-03 16:45 [U-Boot] [PATCH] watchdog/imx_watchdog: do not set WCR_WDW Sebastian Andrzej Siewior
2015-03-25 8:03 ` Stefano Babic
2015-03-25 12:15 ` Sebastian Andrzej Siewior
2015-03-25 13:08 ` Stefano Babic
2015-03-25 15:53 ` Stefano Babic
2015-03-26 8:02 ` Sebastian Andrzej Siewior [this message]
2015-03-26 8:27 ` Stefano Babic
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