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From: Felix Radensky <felix@embedded-sol.com>
To: Scott Wood <scottwood@freescale.com>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>
Subject: Re: UBIFS problem on MPC8536DS
Date: Thu, 22 Oct 2009 10:20:45 +0200	[thread overview]
Message-ID: <4AE015DD.1010009@embedded-sol.com> (raw)
In-Reply-To: <20091016153128.GA11838@loki.buserror.net>

Hi, Scott

Scott Wood wrote:
> On Fri, Oct 16, 2009 at 07:01:43AM +0200, Felix Radensky wrote:
>   
>> Thanks for confirmation. So the real problem is eLBC ?
>> What happens if I access other devices on eLBC (e.g. FPGA)
>> simultaneously with NAND or NOR ?
>>     
>
> AFAICT, the problem is NAND being accessed simultaneously with anything else
> on the eLBC (at least GPCM -- not sure about UPM).  Instead of delaying the
> memory-like transaction until the NAND special operation has completed, it
> seems to just abort the NAND operation.
>
> eLBC can't really tell the difference whether you've got NOR or FPGA hooked
> up to a GPCM chip select, so the problem should still apply.
>   

Are you aware of Freescale plans to fix the problem in new silicon 
revisions ?
Also, can you please tell what CPUs are affected by this, except 8536 
and 8572.

Thanks a lot.

Felix.

  parent reply	other threads:[~2009-10-22  8:21 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
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 [this message]
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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