Re: [microblaze-uclinux] Changing ethernet MAC for production(speeding up the process)

[Childhood Hwang <childhood.hwang@xxxxxxxxx>]

Hi hoefle:

I would like to know if you could forward these tools to me, it is
quite helpful for me :-)
Thanks.

Rgs.
Childhood.

2009/8/21 hoefle marco <marco.hoefle@xxxxxxxxxxxxx>:
>
>> Hi,
>> > From: hoefle marco [mailto:marco.hoefle@xxxxxxxxxxxxx]:
>> > When ethaddr and macaddr are set correctly the ethernet lite driver
>> > should use the "new" mac address, right?
>> Yes, the bootloader will pass your edited flash data to the kernel as command-line parameters.
>> You must tweek the CRC checksum of the flash data to avoid the CRC failure. Then you edited data will be accepted when the bootloader reads the flash sector.
>> CU, Falk
>
> Hi Falk,
> your hint helped. After getting the 5 "golden mtdblocks" from a working
> board I modify that on containing the u-boot environment with the new
> MAC. Afterward I do:
>
> uboot_envcrc ./mtdblock2 mtdblock_out
> (I used the CRC routine from u-boot for this tool, if anybody is
> interested I am happy to forward it)
>
> cat mtdblock0 mtdblock1 mtdblock_out mtdblock3 mtdblock4 mtdblock5 >
> spartan_flash_image
>
> The spartan_flash_image can now be programmed via EDK flashwriter
> utility directly to the board.
>
> Petalinux is using mtdblock3 as "config". I want to get rid of that
> partition but it would be good to know first what its for :-)
> Cheers,
> Marco
>
>
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