From: JerryVanBaren <gerald.vanbaren@ge.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] network bootp/tftp hang with tsec on MPC8343
Date: Wed, 27 Aug 2008 11:30:46 -0400 [thread overview]
Message-ID: <48B57326.3050609@ge.com> (raw)
In-Reply-To: <48B56DBD.2070701@matrix-vision.de>
Andre Schwarz wrote:
> Huh - problem solved. It's been a memory setup issue :-(
>
> But I still wonder why the error is forced, i.e. happens more often,
> when using network on u-boot.
If it is a SDRAM (DDR/DDR2) configuration issue, it likely is the DMA
happening from network activity that is aggravating your
misconfiguration. See especially the state machine part of
<http://www.denx.de/wiki/view/DULG/SDRAM>
Using DMA makes addresses and sequences and timings jump around that
simple program execution (especially if you have cache(s) disabled)
doesn't do.
[snip]
> regards,
> Andre
Best regards,
gvb
next prev parent reply other threads:[~2008-08-27 15:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-21 14:21 [U-Boot] network bootp/tftp hang with tsec on MPC8343 Andre Schwarz
2008-08-27 15:07 ` Andre Schwarz
2008-08-27 15:30 ` JerryVanBaren [this message]
2008-08-27 15:57 ` Andre Schwarz
[not found] <5a775e870909190751j3b07dd1fjcc4d5c499dcc94fb@mail.gmail.com>
2009-09-21 13:06 ` André Schwarz
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