[U-Boot-Users] RE: [uClinux-dev] Reset problem

[Daniel Alomar]

Hi Dan,

Thanks, the solution was connect the reset line to the reset input from our
flash chip. Now it seems all works ok!

Best regards,

Daniel Alomar i Claramonte
Research & Development Electronic Dept.
SERRA SOLDADURA, S.A.
WEB Site: http://www.serrasold.com
Knowledge Site: http://serratron.serrasold.com 

-----Mensaje original-----
De: Dan Searle [mailto:dan at adelix.com] 
Enviado el: viernes, 13 de mayo de 2005 13:28
Para: Daniel Alomar
CC: u-boot-users at lists.sourceforge.net; uclinux-dev at uclinux.org;
coldfire at lists.wildrice.com
Asunto: Re: [uClinux-dev] Reset problem


Hi,

Are you using a flash to boot from? I had a similar problem with an ADI
Coyote based board. Turns out that if the flash chip is in "Write enable"
mode when the reboot occurs, the CPU can't read the bootloader from it and
the board hangs. I added a reset handler in the MTD mapping driver
(ixp4xx.ko in my case), which forced the flash chip in to read mode before
the reset is attempted.

Regards, Dan...

Friday, May 13, 2005, 12:22:47 PM, you wrote:

> Hi folks,

> We have a 5282 in our prototype board based in an Avnet board, with 
> the lastest u-Clinux dist. and U-Boot, and we have an annoying 
> behaviour. The 80% times we push the reset button, uClinux don't boot, 
> and we have to plug off the power and plug on to boot correctly. We 
> have checked the reset out signal from the micro, and it's ok.

> Best regards,

> Daniel Alomar i Claramonte
> R D Electronics Dept.
> SERRA SOLDADURA, S.A.




--

Dan Searle
Adelix Ltd
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