From: Ian Jeffray <ijeffray@a2etech.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Can u-boot access Linux's mtd partition?
Date: Tue, 02 Mar 2010 15:57:52 +0000 [thread overview]
Message-ID: <4B8D3580.60606@a2etech.com> (raw)
In-Reply-To: <67a3f13e1003020733p5459c999r1f7346fd9cd8a92d@mail.gmail.com>
On 02/03/2010 15:33, Joe Culler wrote:
> 1. First, I set default CONFIG_ETHADDR(for example, 02:80:ad:20:31:e8)
> in u-boot, then use flash writer to burn the flash on each board.
> 2. I have a program for burning mac address on Linux.
> After booting linux kernel, my program can burn the mac address.
> Reboot the system if burning the mac address successfully.
> 3. Since the mac address is already stored in mtd2, for example.
> I want u-boot to detect the correct mac address I burned in mtd2
> partition rather than the default setting 02:80:ad:20:31:e8.
>
> Is it the correct way I do or do you have any better idea? Thank you.
I just use U-Boot tools "fw_setenv" to update the U-Boot ETHADDR
variable from within Linux. If you do this, it may be advisable
to move the environment out of the code sector in case of failure
during writeback.
http://www.denx.de/wiki/DULG/HowCanIAccessUBootEnvironmentVariablesInLinux
http://elinux.org/U-boot_environment_variables_in_linux
Ian.
next prev parent reply other threads:[~2010-03-02 15:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-02 15:33 [U-Boot] Can u-boot access Linux's mtd partition? Joe Culler
2010-03-02 15:57 ` Ian Jeffray [this message]
2010-03-02 16:22 ` Wolfgang Denk
2010-03-02 17:24 ` Joe Culler
-- strict thread matches above, loose matches on Subject: below --
2010-03-01 15:13 Joe Culler
2010-03-01 19:52 ` Wolfgang Denk
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