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From: Andrew Armitage <andrew@varisys.co.uk>
To: David Hawkins <dwh@ovro.caltech.edu>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: Yosemite/440EP 'issues' as a PCI target
Date: Fri, 10 Feb 2006 17:20:13 +0000	[thread overview]
Message-ID: <43ECCB4D.9080602@varisys.co.uk> (raw)
In-Reply-To: <43ECC7CE.1010409@ovro.caltech.edu>

Hi David,

> However, given the meager host-to-host communications
> features, I think I would be better off putting an
> Intel 21555 non-transparent bridge on the board.
> That will provide 5V tolerance, and a full set of
> messaging unit and I2O facilities. All for $50-80
> or so according to the single-piece pricing from
> Digikey. I'm not so happy to need to add another
> chip, but if the 440EP passes all the other
> benchmark requirements, then it seems the least
> painful way to proceed.
> 
> Has anyone reading this list had good or bad experiences
> with the Intel 21555 or perhaps some of the PLX offers,
> eg. PCI 6254?

We've used the 21555 on a couple of our designs (mated to a 7457/107 
pair) and have never had too many problems with them.  The messaging 
unit has been very helpful.

Just my $0.02,

Andrew

  reply	other threads:[~2006-02-10 17:55 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-02  9:35 Yosemite/440EP why are readl()/ioread32() setup to readlittle-endian? Jenkins, Clive
2006-02-02  9:46 ` Eugene Surovegin
2006-02-02 14:37   ` Matt Porter
2006-02-02 17:45     ` Eugene Surovegin
2006-02-02 18:16       ` Matt Porter
2006-02-05  4:41         ` Yosemite/440EP PLB4 vs PLB3 DMA to PCI issue David Hawkins
2006-02-05 10:39           ` Wolfgang Denk
2006-02-05 23:47             ` David Hawkins
2006-02-06 18:31               ` Stefan Roese
2006-02-06 19:09                 ` David Hawkins
2006-02-08 15:38                   ` Stefan Roese
2006-02-08 18:43                     ` David Hawkins
2006-02-09  0:34                       ` Wolfgang Denk
2006-02-09 13:25                         ` Mark Chambers
2006-02-09 23:58                         ` Yosemite/440EP 'issues' as a PCI target David Hawkins
2006-02-10  7:47                           ` Stefan Roese
2006-02-10 17:05                             ` David Hawkins
2006-02-10 17:20                               ` Andrew Armitage [this message]
2006-02-10 17:26                                 ` David Hawkins
2006-02-10 17:31                               ` Wolfgang Denk
2006-02-10 17:38                                 ` David Hawkins
2006-02-10 17:58                                   ` David Hawkins
2006-02-11  6:03                                 ` David Hawkins
2006-02-11  8:21                                   ` Stefan Roese
2006-02-11 18:15                                     ` David Hawkins
2006-02-11 13:03                                   ` Wolfgang Denk
2006-02-10 17:59                               ` Stefan Roese
2006-02-10 18:11                                 ` David Hawkins
2006-02-11  8:06                                   ` Stefan Roese
2006-02-11 18:06                                     ` David Hawkins
2006-02-11 19:00                                     ` David Hawkins
     [not found]                               ` <43ECCCA2.1070007@sandburst.com>
     [not found]                                 ` <43ECCE7A.4090507@ovro.caltech.edu>
     [not found]                                   ` <43ECD19E.8010604@sandburst.com>
2006-02-10 19:13                                     ` David Hawkins
     [not found]                               ` <001701c62e6c$09c48ea0$6401a8c0@CHUCK2>
2006-02-10 18:19                                 ` David Hawkins
2006-02-11  6:06                                 ` David Hawkins

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