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.
next prev 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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