[U-Boot-Users] Reset problem

[U-Boot-Users] Reset problem

[Daniel Alomar]

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.
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[U-Boot-Users] Re: [uClinux-dev] Reset problem

[Dan Searle]

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
dan.searle at adelix.com web: www.adelix.com
tel: 0845 230 9590 / fax: 0845 230 9591 / support: 0845 230 9592
snail: The Old Post Office, Bristol Rd, Hambrook, Bristol BS16 1RY. UK.

Any views expressed in this email communication are those
of the individual sender, except where the sender specifically states
them to be the views of a member of Adelix Ltd.  Adelix Ltd. does not
represent, warrant or guarantee that the integrity of this communication
has been maintained nor that the communication is free of errors or
interference.

[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
dan.searle at adelix.com web: www.adelix.com
tel: 0845 230 9590 / fax: 0845 230 9591 / support: 0845 230 9592
snail: The Old Post Office, Bristol Rd, Hambrook, Bristol BS16 1RY. UK.

Any views expressed in this email communication are those
of the individual sender, except where the sender specifically states them
to be the views of a member of Adelix Ltd.  Adelix Ltd. does not represent,
warrant or guarantee that the integrity of this communication has been
maintained nor that the communication is free of errors or interference.