From: Scott Wood <scottwood@freescale.com>
To: Felix Radensky <felix@embedded-sol.com>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
Adrian Hunter <adrian.hunter@nokia.com>
Subject: Re: UBIFS problem on MPC8536DS
Date: Thu, 15 Oct 2009 15:07:54 -0500 [thread overview]
Message-ID: <4AD7811A.6040501@freescale.com> (raw)
In-Reply-To: <4AD614E4.6030005@freescale.com>
Scott Wood wrote:
> Felix Radensky wrote:
>> Yes, NAND and NOR are on the same local bus controller.
>>
>> Maybe powerpc folks can provide some insight here.
>> Is it possible that simultaneous access to NOR and NAND
>> on MPC8536 can result in NAND timeouts ?
>
> I've heard other reports of such problems with eLBC, but was unable to
> reproduce it myself last time I tried. Could you reduce this down to a
> minimal set of specific reproduction instructions (e.g. eliminate UBI if
> possible, or else explain how to set up UBI)?
OK, I was able to reproduce the problem on mpc8572 simply by sticking a
read to NOR flash inside fsl_elbc_run_command -- I'm not sure what
happened last time I tried.
I suppose we'll need a special NOR mapping driver that does some sync
with the NAND driver.
-Scott
next prev parent reply other threads:[~2009-10-15 20:07 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 10:54 UBIFS problem on MPC8536DS Felix Radensky
2009-10-14 12:36 ` Adrian Hunter
2009-10-14 13:02 ` Felix Radensky
2009-10-14 13:21 ` Felix Radensky
2009-10-14 16:44 ` Adrian Hunter
2009-10-14 17:48 ` Felix Radensky
2009-10-14 18:13 ` Scott Wood
2009-10-14 20:12 ` Felix Radensky
2009-10-15 20:07 ` Scott Wood [this message]
2009-10-16 5:01 ` Felix Radensky
2009-10-16 15:31 ` Scott Wood
2009-10-18 9:38 ` Felix Radensky
2009-10-19 15:40 ` Scott Wood
2009-10-19 19:39 ` Felix Radensky
2009-10-19 19:47 ` Scott Wood
2009-10-19 20:19 ` Felix Radensky
2009-10-20 15:30 ` Felix Radensky
2009-10-22 8:20 ` Felix Radensky
2009-10-22 16:07 ` Scott Wood
2009-10-15 9:54 ` Norbert van Bolhuis
2009-10-15 10:45 ` MPC5121 CAN and USB Kári Davíðsson
2009-10-15 11:20 ` Paul Gibson
2009-10-15 11:36 ` Kári Davíðsson
2009-10-15 18:30 ` Wolfgang Denk
2009-10-15 23:03 ` Paul Gibson
2009-10-15 23:10 ` Wolfgang Denk
2009-10-19 6:46 ` David Jander
2009-10-16 13:53 ` Kári Davíðsson
2009-10-15 12:49 ` UBIFS problem on MPC8536DS Felix Radensky
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