Re: Each boot on my Cubietruck, and different MACaddr

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Hi,

On 09/09/2014 01:59 PM, Robert Moskowitz wrote:
> I am at ITS World Congress in downtown Detroit today, so I can't do any testing until this evening...
> 
> On 09/09/2014 07:02 AM, Hans de Goede wrote:
>> Hi,
>>
>> On 09/09/2014 12:28 PM, Robert Moskowitz wrote:
>>> On 09/09/2014 02:41 AM, Hans de Goede wrote:
>>>> Hi,
>>>>
>>>> On 09/09/2014 07:40 AM, Marcin Juszkiewicz wrote:
>>>>> W dniu 09.09.2014 o 04:51, Robert Moskowitz pisze:
>>>>>> Read Hans de Goede's post on the F19 and the Allwinner (Cubie) back on
>>>>>> 12/26/2013.  He supposedly uses the SID for a consistant local scope
>>>>>> MACaddr.  I Do get that on my Cubieboard2, but not on my Cubietruck.
>>>>> Hans also told that there was a bunch of Cubie* with pre-production cpus
>>>>> which lacked serial number.
>>>> AFAIK only cubieboard2 and olinuxino-a20-micro suffer from this, the
>>>> cubietruck is fine. On machines with an all 0 sid this indeed does not
>>>> work.
>>> My SIX Cubieboard2 all are fine with a consistant MAC address.
>> Good, then later runs of the cubieboard2 have gotten a proper SID, that is good.
>>
>>> My one Cubietruck keeps coming up with the unique MACaddr.  Exact opposite of what you are reporting.
>> Which version of Fedora are you running on your Cubietruck ?
> Your F19 and last the 9/5 build of F21-minimal.  Here is what I do for the F19:
> 
> http://docs.cubieboard.org/tutorials/cb2/installation/cb2_fedora_19_card_install
> xzcat /home/rgm/arm/Fedora-19-a10-armhfp-r3.img.xz > /dev/sdb; sync
> <reinsert card>
> /run/media/rgm/uboot/select-board.sh cubieboard2[cubietruck]
> umount /run/media/rgm/uboot
> umount /run/media/rgm/rootfs
> 
> I never saw anything after the R3 release.
> 
> 
>>
>> With the respin images the kernel takes care of getting the MAC from the SID,
>> with the official F-21 images, u-boot needs to do this, and the u-boot included
>> is (not yet) new enough.
> 
> hmmm.  For cubieboard2, I use your git repo:
> 
> git clone https://github.com/jwrdegoede/u-boot-sunxi.git
> cd u-boot-sunxi
> git checkout -B next origin/next
> make -j4 CROSS_COMPILE=arm-linux-gnu- Cubieboard2_defconfig
> make -j4 CROSS_COMPILE=arm-linux-gnu-
> dd if=u-boot-sunxi-with-spl.bin of=/dev/sdb bs=1024 seek=8
> sync
> 
> Is there a way to also make a uboot for the cubietruck to update what is on koji?

Yes, replace Cubieboard2 with Cubietruck, and replace
https://github.com/jwrdegoede/u-boot-sunxi.git with
git://git.denx.de/u-boot.git

>>> Perhaps there is a rev difference in the shipped nand?  In all cases, I never did anything with the nand image, but went right to the SDcard image.  I just don't get how to do the nand poking to get something working from it.
>> The SID is in the SoC, it has nothing to do with the nand.
> 
> Well that is a start.
> 
>>
>>> Is there any test I can run on my CT?
>> You can dump the sid by hooking up a serial console, and then pressing a
>> key to interrupt u-boot, then do:
>>
>> md 1c23800 4
> 
> If I don't have an SDcard in the unit I end up at a sunxi# prompt. Is this the same thing?

Probably, if the md command works and the output resembles the one from:
http://linux-sunxi.org/SID_Register_Guide

> 
>>
>> To get the SID contents, see here for example SID-s :
>>
>> http://linux-sunxi.org/SID_Register_Guide
>>
>> If this is non-0 on your cubietruck, then you should get a consistent MAC
>> with the respin images, and you should be able to get a consistent MAC
>> with F-21 by building (and installing) u-boot from here:
>>
>> http://git.denx.de/?p=u-boot.git;a=summary
> 
> Makes no sense to me.  What do I do with this?

It gives you the clone url:

git://git.denx.de/u-boot.git

Regards,

Hans
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