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From: David Hawkins <dwh@ovro.caltech.edu>
To: u-boot@lists.denx.de
Subject: [U-Boot] bdi3000 configurtio file for mpc8308RDB
Date: Thu, 26 Jul 2012 13:01:40 -0700	[thread overview]
Message-ID: <5011A224.2010202@ovro.caltech.edu> (raw)
In-Reply-To: <20120726192429.521E4203A89@gemini.denx.de>

Hi Wolfgang,

>> In your opinion, is MPC8308 USB Device Mode completely broken?
>
> Define completely...

:)

> When acting as a mass storage device, we saw some ~14 MB/s throughput
> to the device when the bug did not trigger;  when it did, we got 1.8
> MB/s and less, and many device reset messages in the system logs.

Ok, that sounds annoying enough that I won't bother to support
the MPC8308 device mode down the backplane.

>> How about USB Host mode? The board will communicate with a rear
>> transition module (another board plugged in from the rear side
>> of the chassis). If MPC8308 USB Host Mode is reliable, then I can
>> wire the USB interface through the backplane for use on the
>> RTM, eg., for talking to an FT245/232 device or a USB microcontroller.
>
> Host mode works fine.

Great! I'll put a USB3300 PHY on the board, and run the
USB over to the RTM.

Thanks for sharing your experiences, its much appreciated.

Cheers,
Dave

  reply	other threads:[~2012-07-26 20:01 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26 16:37 [U-Boot] bdi3000 configurtio file for mpc8308RDB Wolfgang Denk
2012-07-26 17:05 ` David Hawkins
2012-07-26 18:15   ` Kim Phillips
2012-07-26 18:52     ` David Hawkins
2012-07-26 18:17   ` Wolfgang Denk
2012-07-26 18:43     ` David Hawkins
2012-07-26 19:24       ` Wolfgang Denk
2012-07-26 20:01         ` David Hawkins [this message]
     [not found] ` <4A6F885E2BDE12468EC281BA9F1CB58F0906A782@DBXPRD0610MB359.eurprd06.prod.outlook.com>
2012-07-29  7:09   ` Wolfgang Denk
  -- strict thread matches above, loose matches on Subject: below --
2012-07-26 14:56 Avner Flesch

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