[U-Boot] U-Boot Loop

[James Chargin]

On 04/14/2014 01:11 PM, Tran, Dang wrote:
> Hi James,
>
> I'm using U-Boot 2010.06 (Jun 18 2013 - 14:03:16)

This is a version of U-Boot that is even older than the version I used 
for my demonstration that ctrl-c works. (I used 2010.12)

You should make efforts towards using a more recent version.

What information can you provide as to the settings of your serial 
terminal emulator? Is it known to send your ctrl-c to the target device?

Jim
-- 
Jim Chargin
AJA Video Systems                       jimc at aja.com
(530) 271-3334                          http://www.aja.com


>
> 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
>>
>>
>> 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.
>
> This sort of disclaimer in email to the U-Boot mailing list is frowned upon. Please try to eliminate it for any future postings.
>
> 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.
>