[U-Boot] Help Falcon Mode on Wanboard

[Stefano Babic]

Hi Diego,

On 08/08/2016 18:12, Diego Dorta wrote:
> Hi Stefano,
> 
> I downloaded the patch about Falcon Mode from:
> 
> https://www.amazon.com/clouddrive/share/hVlzRXoJv1Jq4DJdgDcVnfmOWjARqR06eCfheWjRcSh/folder/KZakgsCMThWy3I43j2-afQ
> 
> Then, as the README file says I did a checkout on commit 587c3f8ebe356b558f1876414885c1b4a31294ab and applied the patch.
> 
> $ git am 0001-wandboard-changes-for-EW-2016-demo.patch
> 
> I compiled without errors and then I've tried to upload to the SD card, by doing:
> 
> $ sudo dd if=SPL of=/dev/sdb bs=1k seek=1; sync
> 
> $ sudo dd if=u-boot.img of=/dev/sdb bs=1k seek=69; sync
> 
> But, everytime I try to turn on the board I got this error:
> 
> U-Boot 2016.01-rc4-26067-g0ff7f76 (Aug 08 2016 - 09:41:44 -0300)
> 
> CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
> Reset cause: POR
> initcall sequence 178290cc failed at call 178038bd (err=394279101)
> ### ERROR ### Please RESET the board ###
> 
> I'm using wanboard quad rev: B1.
> 
> Does anybody know how to solve this?

It was quite a while ago, but the patch sets Falcon mode, and it tries
to boot the kernel. Kernel is not in filesystem, but stored at a fixed
address on the SD card (0x1000). The error you reported seems when
U-Boot is starting - by pressing 'c' or if no kernel is stored.

I have to find back the wandboard I used to try a run...

Best regards,
Stefano Babic

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