From: Jerry Van Baren <gerald.vanbaren@smiths-aerospace.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] loading MAC address into hardware
Date: Fri, 4 Mar 2005 12:38:08 -0500 [thread overview]
Message-ID: <42289D00.4030203@smiths-aerospace.com> (raw)
In-Reply-To: <3rr11u$5li5t0@mxip25a.cluster1.charter.net>
David Peters wrote:
> I am trying to boot Linux from flash, but the problem is that the MAC
> address never gets initialized before starting Linux. Is there a way to
> instruct u-boot to load the MAC address into the hardware before starting
> Linux?
Yes.
http://www.denx.de/twiki/bin/view/DULG/UBootCmdGroupEnvironment
http://www.denx.de/twiki/bin/view/DULG/UBootEnvVariables
* ethaddr: Ethernet MAC address for first/only ethernet interface
(= eth0 in Linux).
This variable can be set only once (usually during manufacturing
of the board). U-Boot refuses to delete or overwrite this variable once
it has been set.
* eth1addr: Ethernet MAC address for second ethernet interface (=
eth1 in Linux).
* eth2addr: Ethernet MAC address for third ethernet interface (=
eth2 in Linux).
Some assembly may be required: we don't know _your_ board, _you_ may
have to implement the routine that actually stores the MAC in your hardware.
gvb
next prev parent reply other threads:[~2005-03-04 17:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-04 17:28 [U-Boot-Users] loading MAC address into hardware David Peters
2005-03-04 17:38 ` Jerry Van Baren [this message]
2005-03-04 18:15 ` David Peters
2005-03-04 23:38 ` Wolfgang Denk
2005-03-19 2:15 ` [U-Boot-Users] " Sergei Sharonov
2005-03-20 16:17 ` Wolfgang Denk
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