[U-Boot-Users] Device tree and u-boot passing MAC addressquestions

[Joe Hamman <joe.hamman@embeddedspecialties.com>]

> -----Original Message-----
> From: Jerry Van Baren [mailto:gerald.vanbaren at ge.com]
> Sent: Monday, December 17, 2007 2:30 PM
> To: joe.hamman at embeddedspecialties.com
> Cc: 'robert lazarski'; 'U-Boot-Users'
> Subject: Re: [U-Boot-Users] Device tree and u-boot passing MAC
> addressquestions
> 
> Joe Hamman wrote:
> > Hi Robert,
> >
> > [snip]
> >
> >> To get eth2 to link, I put this MAC in my device tree:
> >>
> >> local-mac-address = [ 00 E0 0C 00 02 FD ];
> >>
> >> Otherwise the kernel just sees a series of zero's . Is this change on
> >> purpose and I missed what I need to do now?
> >>
> >
> > I recently encountered the same problem.  By using the 'fdt b' command,
> I
>                                                                ^
> "fdt p" I presume.                                            |

Sorry, I should have listed all the steps:
tftp 10000 filename.dtb		# load the dtb
fdt a 10000				# tell fdt where it loaded
fdt b					# do the board specific setup (fills
in MAC)
fdt p					# verify the values are correct

> 
> > was able to see that the MAC addresses were not being filled in prior to
> > calling the kernel.
> >
> > Adding aliases to the dtb file fixed my problem. (Search the mailing
> > lists...)
> >
> > Best regards,
> > Joe