From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] memory: omap-gpmc: Add Kconfig option for debug
Date: Thu, 7 Jan 2016 18:26:20 -0800 [thread overview]
Message-ID: <20160108022619.GS12777@atomide.com> (raw)
In-Reply-To: <568EDC8D.7070205@gmail.com>
* Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> [160107 13:46]:
> On 7.01.2016 20:07, Tony Lindgren wrote:
>
> >>>Also, do things now work reliably for you with CONFIG_OMAP_GPMC_DEBUG
> >>>enabled? Or does that also produce corruption after few reboots?
>
> I'll make further experiments as I am a bit lost what and when happens. What
> is for sure is that corruptions occurs immediately after boot without your
> patch and with CONFIG_OMAP_GPMC_DEBUG disabled. So maybe there is another
> problem in ubfs or mtd driver.
Yes it seems there's some other issue too. Maybe you can run git bisect
again and carry the fix along as an extra patch?
> Already did, every reflash and install of upstream kernel compatible SW
> takes me about 3 hours I'd rather spend on something else :). Though it
> seems that reboot issue happens no matter if CONFIG_OMAP_GPMC_DEBUG is
> enabled or not.
OK then it really seems like we do have another bug lurking around.
Maybe you can figure out an easier way to reproduce it?
> The problem is that between NOLO and kernel there is u-boot. And even if I
> am almost sure it doesn't touch onenand configs, I can't be absolutely sure.
> So those timings are not 100% reliable IMO, though close to that.
Hmm yes I'm only booting with u-boot here as my device sits in my rack.
> I'll play a bit more with printing the values with both
> CONFIG_OMAP_GPMC_DEBUG enabled and disabled and whatever I can think of,
> including dumping cs0 config from u-boot, nokia kernel and/or REing NOLO
> onenand init (already did that for N9 DDR timings, shouldn't be that hard
> for N900 GPMC). Will keep you informed on the progress. In the meanwhile I
> think your patch should make it as without it onenand is unusable.
OK will push it out then.
Regards,
Tony
next prev parent reply other threads:[~2016-01-08 2:26 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 21:21 [PATCH 0/2] omap gpmc changes for parsing devices and working debug Tony Lindgren
2015-05-20 21:21 ` [PATCH 1/2] memory: omap-gpmc: Fix parsing of devices Tony Lindgren
2015-05-20 21:21 ` [PATCH 2/2] memory: omap-gpmc: Add Kconfig option for debug Tony Lindgren
2015-05-20 22:50 ` Paul Walmsley
2015-05-20 22:56 ` Tony Lindgren
2015-05-21 1:06 ` Paul Walmsley
2015-08-27 6:25 ` Hannes Schmelzer
[not found] ` <OFCA2F1DCE.C787A961-ONC1257EAE.001D79BC-C1257EAE.00203AFF@br-automation.com>
2015-08-27 16:59 ` Tony Lindgren
2015-08-28 4:44 ` Hannes Schmelzer
2015-09-01 12:35 ` Roger Quadros
2015-09-01 13:31 ` Antwort: " Hannes Schmelzer
2015-09-02 14:43 ` Roger Quadros
2015-09-01 12:35 ` Roger Quadros
2016-01-01 11:29 ` Ivaylo Dimitrov
2016-01-04 17:02 ` Tony Lindgren
2016-01-04 17:34 ` Pali Rohár
2016-01-04 17:40 ` Tony Lindgren
2016-01-04 18:59 ` Ivaylo Dimitrov
2016-01-05 4:13 ` Tony Lindgren
2016-01-05 8:49 ` Pali Rohár
2016-01-05 22:49 ` Tony Lindgren
2016-01-06 8:55 ` Ivaylo Dimitrov
2016-01-06 9:05 ` Pali Rohár
2016-01-06 16:44 ` Tony Lindgren
2016-01-06 17:36 ` Aaro Koskinen
2016-01-06 17:40 ` Sebastian Reichel
2016-01-06 17:47 ` Tony Lindgren
2016-01-06 18:01 ` Ivaylo Dimitrov
2016-01-06 18:26 ` Tony Lindgren
2016-01-06 18:39 ` Ivaylo Dimitrov
2016-01-07 18:07 ` Tony Lindgren
2016-01-07 21:45 ` Ivaylo Dimitrov
2016-01-08 2:26 ` Tony Lindgren [this message]
2016-01-08 5:13 ` Ivaylo Dimitrov
2016-01-08 7:59 ` Pali Rohár
2016-01-09 0:23 ` Ivaylo Dimitrov
2016-01-21 9:14 ` Pali Rohár
2016-02-02 9:33 ` Ivaylo Dimitrov
2016-02-02 23:39 ` Tony Lindgren
2016-02-03 0:00 ` Tony Lindgren
2016-02-03 7:03 ` Ivaylo Dimitrov
2016-02-03 16:50 ` Ivaylo Dimitrov
2016-02-05 6:10 ` Tony Lindgren
2016-02-05 14:43 ` Ivaylo Dimitrov
2016-01-08 17:10 ` Tony Lindgren
2016-01-08 7:56 ` Pali Rohár
2016-01-08 17:04 ` Tony Lindgren
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