linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: David Hawkins <dwh@ovro.caltech.edu>
To: Mark Chambers <markc@mail.com>, linuxppc-embedded@ozlabs.org
Subject: Re: Yosemite/440EP 'issues' as a PCI target
Date: Fri, 10 Feb 2006 22:06:33 -0800	[thread overview]
Message-ID: <43ED7EE9.8040501@ovro.caltech.edu> (raw)
In-Reply-To: <001701c62e6c$09c48ea0$6401a8c0@CHUCK2>


Hi Mark,

> I'm currently working on an MPC8247 based design, btw.
> It has a PC104+ header and is directly connected to a
> T.I. 6205 (which, at $10, is a lot of crunch for the buck).

I took a look at the MPC8727 family.

The CPM runs at 200MHz max, and the SSCs can clock at
1/4 that, so only 50MHz; 50MHz/8-bits = 6MB/s.
They're too slow to move 132MB/s.

There is only two external buses too, and no
external bus to memory DMA, since they are the
same bus.

Also, the MPC834x series exists, and beats it out
performance wise.

Thanks for the pointer though!

Dave

  parent reply	other threads:[~2006-02-11  6:09 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
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]                               ` <001701c62e6c$09c48ea0$6401a8c0@CHUCK2>
2006-02-10 18:19                                 ` David Hawkins
2006-02-11  6:06                                 ` David Hawkins [this message]
     [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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=43ED7EE9.8040501@ovro.caltech.edu \
    --to=dwh@ovro.caltech.edu \
    --cc=linuxppc-embedded@ozlabs.org \
    --cc=markc@mail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).