[U-Boot] timing issue - uboot freeze after pringing header

Bo Shen bard.shen at gmail.com
Mon Feb 18 04:06:55 CET 2013


Hi John,

On 02/16/2013 12:45 AM, John Stile wrote:
> I am trying to move from uboot-1.3.6 to uboot 2013.01, where the old
> works, the new prints this before freezing:
>
>          U-Boot 2013.01 (Feb 14 2013 - 16:24:13)
>
>          CPU: AT91SAM9G20
>          Crystal frequency:   18.432 MHz
>          CPU clock        :  396.288 MHz
>          Master clock     :  132.096 MHz
>
> My board is the at91sam9g20ek_2mmc.
> at91bootstrap-1.1.6 loads uboot.

Please update the at91bootstrap to new version.
You can get the it from: git://github.com/linux4sam/at91bootstrap.git
using tag: v3.5.2
or master branch

For new bootstrap, the memory map for NAND flash has changed. More 
information: 
http://www.at91.com/linux4sam/bin/view/Linux4SAM/GettingStarted#Linux4SAM_NandFlash_demo_Memory

So, you need flash u-boot to 0x40000 address, and change u-boot env as 
the memory map (I will send patches for this later).

Best Regards,
Bo Shen

> I am trying both nandflash and dataflash versions, using
> include/configs/at91sam9260ek.h
>
> Messing with settings I have got it back to a state of not printing
> anything.
>
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