From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
To: Michael Cashwell <mboards@prograde.net>
Cc: linux-mtd@lists.infradead.org, stefan.bigler@keymile.com,
"Holger brunck" <holger.brunck@keymile.com>,
"Anders Grafström" <grfstrm@users.sourceforge.net>
Subject: Re: Numonyx NOR and chip->mutex bug?
Date: Thu, 10 Feb 2011 17:46:46 +0100 [thread overview]
Message-ID: <OFBD6C1723.E5530FEB-ONC1257833.005BF5C1-C1257833.005C2C61@transmode.se> (raw)
In-Reply-To: <97165996-D766-468D-AB90-974E29ABCFB7@prograde.net>
Michael Cashwell <mboards@prograde.net> wrote on 2011/02/10 17:41:23:
>
>
> On Feb 10, 2011, at 11:05 AM, Joakim Tjernlund wrote:
>
> > Michael Cashwell <mboards@prograde.net> wrote on 2011/02/10 16:59:50:
> >>
> >>> A simpler impl. would be a suspend counter. When no. of suspends > 1000, do usleep(500) or usleep(500) every 100-500 suspends.
> >>
> >> Our messages crossed each other. I just saw this problem with 29 suspends.
> >>
> >> I wonder if THAT is what's different between these chips and the older 130nm parts. And none of that addresses whether or not this change is just an anomaly in this batch or if we would continue to get them.
> >>
> >> I'm going to run my test on the older 130nm (2003 vintage) parts just for grins.
> >
> > Here is another idea, don't resume between every write_buffer etc. If less than 500 us has passed, just continue with the next write_buffer. That would be much more efficient.
>
> Wouldn't that extend the wrong time. That would ensure the erase stays *suspended* for at least 500us. But doesn't W602 specify that an erase should be allowed *to run* for 500us before suspension?
>
> It seems the other way around.
eeh, yes :(
Jocke
next prev parent reply other threads:[~2011-02-10 16:46 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 18:14 Numonyx NOR and chip->mutex bug? Michael Cashwell
2011-01-25 18:56 ` Joakim Tjernlund
2011-01-25 22:03 ` Michael Cashwell
2011-01-25 23:09 ` Joakim Tjernlund
2011-02-02 16:20 ` Michael Cashwell
2011-02-02 17:37 ` Stefan Bigler
2011-02-02 20:12 ` Joakim Tjernlund
2011-02-02 21:19 ` Michael Cashwell
2011-02-03 8:11 ` Joakim Tjernlund
2011-02-03 9:50 ` Joakim Tjernlund
2011-02-03 15:24 ` Michael Cashwell
2011-02-03 16:38 ` Stefan Bigler
2011-02-03 23:18 ` Stefan Bigler
2011-02-04 10:47 ` Joakim Tjernlund
2011-02-04 11:04 ` Stefan Bigler
2011-02-04 12:26 ` Joakim Tjernlund
2011-02-04 12:35 ` Joakim Tjernlund
2011-02-04 12:42 ` Joakim Tjernlund
2011-02-04 13:05 ` Joakim Tjernlund
2011-02-04 13:25 ` Joakim Tjernlund
2011-02-04 16:45 ` Stefan Bigler
2011-02-04 16:55 ` Joakim Tjernlund
2011-02-04 17:09 ` Michael Cashwell
[not found] ` <OF42EF <F66AF016-8A2B-4116-BE49-CE05B91BE50F@prograde.net>
[not found] ` <OF42EF<F66AF016-8A2B-4116-BE49-CE05B91BE50F@prograde.net>
2011-02-05 10:29 ` Joakim Tjernlund
2011-02-05 19:19 ` Michael Cashwell
2011-02-05 21:47 ` Michael Cashwell
2011-02-06 9:46 ` Joakim Tjernlund
2011-02-06 15:49 ` Michael Cashwell
2011-02-06 17:29 ` Joakim Tjernlund
2011-02-06 21:13 ` Michael Cashwell
[not found] ` <OF2C1ABD39 <4D5005E4.1040506@keymile.com>
[not found] ` <OFFF2C6D34.91E5D6C3-ONC1257 <96BD3889-E8AD-408D-8275-ED1A5FD55F1B@prograde.net>
[not found] ` <OF2C1ABD39<4D5005E4.1040506@keymile.com>
[not found] ` <OFFF2C6D34.91E5D6C3-ONC1257<96BD3889-E8AD-408D-8275-ED1A5FD55F1B@prograde.net>
[not found] ` <OF9738D658.F46<4C117A67-5057-4ACD-8EBE-04E9C782570C@prograde.net>
[not found] ` <OF6D40AC82.1008D3DD-ONC1 <4D53E660.4020305@users.sourceforge.net>
2011-02-06 21:20 ` Joakim Tjernlund
2011-02-07 14:47 ` Stefan Bigler
2011-02-07 15:01 ` Joakim Tjernlund
2011-02-07 15:46 ` Michael Cashwell
2011-02-07 15:52 ` Stefan Bigler
2011-02-07 16:22 ` Joakim Tjernlund
2011-02-07 16:46 ` Michael Cashwell
2011-02-07 17:08 ` Stefan Bigler
2011-02-07 19:04 ` Michael Cashwell
2011-02-09 19:52 ` Michael Cashwell
2011-02-09 20:13 ` Joakim Tjernlund
2011-02-09 21:59 ` Michael Cashwell
2011-02-10 13:21 ` Anders Grafström
2011-02-10 14:04 ` Joakim Tjernlund
2011-02-10 15:04 ` Joakim Tjernlund
2011-02-10 15:59 ` Michael Cashwell
2011-02-10 16:05 ` Joakim Tjernlund
2011-02-10 16:41 ` Michael Cashwell
2011-02-10 16:46 ` Joakim Tjernlund [this message]
2011-02-10 17:02 ` Joakim Tjernlund
2011-02-10 17:10 ` Michael Cashwell
2011-02-10 17:20 ` Joakim Tjernlund
2011-02-10 17:47 ` Joakim Tjernlund
2011-02-10 18:26 ` Joakim Tjernlund
2011-02-11 18:03 ` Michael Cashwell
2011-02-12 10:47 ` Joakim Tjernlund
2011-02-14 15:59 ` Michael Cashwell
2011-02-14 15:44 ` Michael Cashwell
2011-02-10 16:43 ` Michael Cashwell
2011-02-10 17:54 ` Anders Grafström
2011-02-11 15:05 ` Michael Cashwell
2011-02-11 15:39 ` Joakim Tjernlund
2011-02-14 16:15 ` Michael Cashwell
2011-02-11 17:00 ` Joakim Tjernlund
2011-02-10 15:43 ` Michael Cashwell
2011-02-10 15:51 ` Joakim Tjernlund
2011-02-24 10:50 ` Joakim Tjernlund
2011-02-24 11:36 ` Joakim Tjernlund
2011-02-24 14:28 ` Michael Cashwell
2011-02-10 14:53 ` Joakim Tjernlund
2011-02-06 9:40 ` Joakim Tjernlund
2011-02-06 14:55 ` Michael Cashwell
2011-02-07 15:10 ` Michael Cashwell
2011-02-07 15:48 ` Joakim Tjernlund
2011-02-03 13:24 ` Michael Cashwell
2011-02-03 14:01 ` Joakim Tjernlund
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