From: Dan Malek <dan@embeddededge.com>
To: laurent.pinchart@capflow.com
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: linux-2.4.18 & copy-back cache mode
Date: Wed, 06 Mar 2002 11:28:39 -0500 [thread overview]
Message-ID: <3C8643B7.60506@embeddededge.com> (raw)
In-Reply-To: 3C8637A2.7020401@capflow.com
Laurent Pinchart wrote:
> It's a Rev. D.3
Hmmmm....I regularly use one of those for testing (maybe it's an 855T),
and it seems OK for me. The first one I had didn't work well, but
it was tracked down to a UPM/SDRAM timing problem. People keep talking
about running > 50 MHz bus on these newer parts, is there something
different about the memory controller that allows this and may cause
compatibility problems? I have (fortunately :-) not looked at this
level of detail in the newer parts.
When you disable copyback you also disable burst mode write from
the CPU core.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-03-06 16:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-06 9:14 linux-2.4.18 & copy-back cache mode Laurent Pinchart
2002-03-06 14:52 ` Dan Malek
2002-03-06 15:37 ` Laurent Pinchart
2002-03-06 16:28 ` Dan Malek [this message]
2002-03-06 17:09 ` Wolfgang Denk
2002-03-06 19:50 ` Dan Malek
2002-03-07 2:42 ` serial console on 405GP Kim, Kwansuk
2002-03-11 0:36 ` Sangmoon Kim
-- strict thread matches above, loose matches on Subject: below --
2002-03-07 22:18 linux-2.4.18 & copy-back cache mode Navin Boppuri
2002-03-08 14:41 ` Wojciech Kromer
2002-03-08 15:22 ` Wolfgang Denk
2002-03-12 7:08 ` Wojciech Kromer
2002-03-12 9:38 ` Wolfgang Denk
2002-03-09 1:19 ` Conn Clark
2002-03-12 15:58 Navin Boppuri
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