From: David Hawkins <dwh@ovro.caltech.edu>
To: u-boot@lists.denx.de
Subject: [U-Boot] TSEC ethernet controller problems (crc errors/ corruption)
Date: Mon, 08 Jun 2009 16:36:46 -0700 [thread overview]
Message-ID: <4A2DA08E.10500@ovro.caltech.edu> (raw)
In-Reply-To: <D7CCA83BB0796C49BC0BB53B6AB1208939BFF0@zch01exm21.fsl.freescale.net>
Hi Dave,
>> I'm not ready to claim success, as I need to make the
>> change on other boards ... but its very encouraging!
>
> Good news, Dave.
> Sure, we need to keep the impedance matching.
> change the series resister.
> Anyway, I strong recommand you to check if the signal
> of GMII interface meet the H/W spec of 8349EA.
I modified a second board, and it wasn't quite as
successful.
The signal levels from the PHY all appear to be within
spec for the MPC8349EA.
Unfortunately we can not probe the pins on the PowerPC
BGA on the MDS board to compare with our board. The
MDS board has the processor socket housing covering
the BGA pins.
We'll continue modifying and testing ... we'll
track it down eventually :)
Cheers,
Dave
next prev parent reply other threads:[~2009-06-08 23:36 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-02 16:27 [U-Boot] TSEC ethernet controller problems (crc errors / corruption) Ira Snyder
2009-06-02 16:42 ` David Hawkins
2009-06-02 17:35 ` Peter Tyser
2009-06-02 18:17 ` David Hawkins
2009-06-02 18:17 ` Ira Snyder
2009-06-02 18:41 ` Kim Phillips
2009-06-02 18:50 ` Wolfgang Denk
2009-06-02 19:01 ` David Hawkins
2009-06-02 19:46 ` Ira Snyder
2009-06-02 20:38 ` [U-Boot] TSEC ethernet controller problems (crc errors/ corruption) Liu Dave-R63238
2009-06-02 20:44 ` Liu Dave-R63238
2009-06-02 21:25 ` Ira Snyder
2009-06-02 22:10 ` [U-Boot] TSEC ethernet controller problems (crc errors/corruption) Liu Dave-R63238
2009-06-02 22:19 ` [U-Boot] TSEC ethernet controller problems (crc errors/ corruption) Ira Snyder
2009-06-02 22:22 ` [U-Boot] TSEC ethernet controller problems (crc errors/corruption) Liu Dave-R63238
2009-06-02 23:08 ` [U-Boot] TSEC ethernet controller problems (crc errors/ corruption) Kim Phillips
2009-06-03 17:50 ` Ira Snyder
2009-06-03 20:19 ` Kim Phillips
2009-06-03 20:46 ` Ira Snyder
2009-06-03 21:41 ` Paul Gortmaker
2009-06-05 18:45 ` Paul Gortmaker
2009-06-06 0:38 ` Kim Phillips
2009-06-06 2:31 ` dwh at ovro.caltech.edu
2009-06-08 15:50 ` Kim Phillips
2009-06-08 16:46 ` David Hawkins
2009-06-08 23:06 ` Liu Dave-R63238
2009-06-08 23:36 ` David Hawkins [this message]
2009-06-09 21:46 ` David Hawkins
2009-06-09 23:21 ` Liu Dave-R63238
2009-06-09 23:35 ` David Hawkins
2009-06-03 21:51 ` [U-Boot] TSEC ethernet controller problems (crc errors/corruption) Liu Dave-R63238
2009-06-03 21:58 ` David Hawkins
2009-06-02 22:30 ` Liu Dave-R63238
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