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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] bdi3000 configurtio file for mpc8308RDB
Date: Thu, 26 Jul 2012 20:17:41 +0200	[thread overview]
Message-ID: <20120726181741.35FDB203A89@gemini.denx.de> (raw)
In-Reply-To: <501178EA.6050701@ovro.caltech.edu>

Dear David Hawkins,

In message <501178EA.6050701@ovro.caltech.edu> you wrote:
>
> Grazing through the MPC8308 errata, there don't appear to be any
> major 'gotchas' with this part. ...

... not unless you try to use USB device mode.

> Has anyone had any bad experiences with this part, or is there
> some 'feature' of the part I should be aware of?

USB device mode doesn't work reliably, and FSL was never able or
willing to come up with a solution.  When this issue happens, the USB
device controller not only returns a truncated packet to the gadget
driver, but doesn't report URB completion to the host either.  The
host never gets an URB complete event, so you will see first a delay,
and then the host resets the device.  The issue can be reproduced with
massive writes to a mass-storage device.


Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Human beings were created by water to transport it uphill.

  parent reply	other threads:[~2012-07-26 18:17 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 [this message]
2012-07-26 18:43     ` David Hawkins
2012-07-26 19:24       ` Wolfgang Denk
2012-07-26 20:01         ` David Hawkins
     [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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