[U-Boot] U-Boot Loop

[Tran, Dang]

Hi James,

I'm using U-Boot 2010.06 (Jun 18 2013 - 14:03:16)

Thanks
Dang

-----Original Message-----
From: James Chargin [mailto:jimccrown at gmail.com]
Sent: Friday, April 11, 2014 9:46 AM
To: u-boot at lists.denx.de; Tran, Dang
Subject: Re: [U-Boot] U-Boot Loop

Greetings,

On 04/11/2014 09:23 AM, Tran, Dang wrote:
> Hi,
>
> I'm running a PowerPC board that uses U-Boot and I get into this loop (see terminal output below).
> It doesn't matter how I get into this loop. What I really care about is how to break out of it without manually resetting the board.
> Is there a way to break out of this loop and reset the system via the terminal? Ctrl-X and Ctrl-C doesn't seem to do anything.
>

It might be helpful to know which version of U-Boot you are using.

>
>
> TERMINAL OUTPUT
> Waiting for PHY auto negotiation to complete...... TIMEOUT !
> eTSEC1: No link.
> Speed: 1000, full duplex
> Using eTSEC2 device
> TFTP from server 192.168.128.127; our IP address is 192.168.128.128 Filename 'oe/bsp/mvme2500/vxWorks'.
> Load address: 0x1000000
> Loading: T T T T T T T T T T
> Retry count exceeded; starting again
> Waiting for PHY auto negotiation to complete...... TIMEOUT !

For U-Boot builds made from official sources, ctrl-C works for me to terminate the retry TFTP, as shown

=> # with no Ethernet connection...
=> tftp 500000 test.txt
Waiting for PHY auto negotiation to complete....user interrupt!
eTSEC1: No link.
show_boot_progress(-81) boot fail
=> # in the above, "user interrupt!" was the response to ^C => => # 10.10.0.10 is known to not exist => setenv serverip 10.10.0.10 => tftp 500000 test.txt
Speed: 1000, full duplex
Using eTSEC1 device
TFTP from server 10.10.0.10; our IP address is 10.10.0.15 Filename 'test.txt'.
Load address: 0x500000
Loading: T T
Abort
show_boot_progress(-81) boot fail
=> # in the above, "Abort" was the response to ^C =>


Please make sure your serial communication terminal emulator correctly transmits the ctrl-C when you type it. To see if this works, get to a U-Boot prompt and type ctrl-C, you should see <INTERRUPT>

> ...

>
>
> Thanks
> Dang
>
>
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Best regards,
Jim
---
Jim Chargin
AJA Video Systems                       jimc at aja.com
(530) 271-3334                          http://www.aja.com

This email is non-binding, is subject to contract, and neither Kulicke & Soffa Industries Inc nor its subsidiaries shall have any obligation to you to consummate the transactions herein or to enter into any agreement, other than in accordance with the terms and conditions of a definitive agreement if and when negotiated, finalized and executed between the parties.