[U-Boot] cp.b command not working for copy to flash

[U-Boot] cp.b command not working for copy to flash

[Nirav Rabara]

I am trying cp.b 22000000 10100000 180000 (i.e. copy from RAM to FLASH)
Its showing me message flash can't Erase.

But when i tried cp.b 10100000 22000000 180000 its working. (i.e. copy from
FLASH to RAM)
Can please anybody tell me what's going wrong??
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[U-Boot] cp.b command not working for copy to flash

[Wolfgang Denk]

Dear Nirav Rabara,

In message <24600612.post@talk.nabble.com> you wrote:
> 
> I am trying cp.b 22000000 10100000 180000 (i.e. copy from RAM to FLASH)
> Its showing me message flash can't Erase.
> 
> But when i tried cp.b 10100000 22000000 180000 its working. (i.e. copy from
> FLASH to RAM)
> Can please anybody tell me what's going wrong??

Your port of U-Boot is incomplete and/or broken.

Also, you should be using current code instead of such an old version.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Of course there's no reason for it, it's just our policy.

[U-Boot] cp.b command not working for copy to flash

[Dieter Kiermaier]

Hi Nirav,
> 
> I am trying cp.b 22000000 10100000 180000 (i.e. copy from RAM to FLASH)
> Its showing me message flash can't Erase.
> 
> But when i tried cp.b 10100000 22000000 180000 its working. (i.e. copy from
> FLASH to RAM)
> Can please anybody tell me what's going wrong??

Maybe you have to unprotect your flash first?

Dieter

[U-Boot] cp.b command not working for copy to flash

[Shinose]

On Wed, Jul 22, 2009 at 12:03 PM, Dieter Kiermaier <dk-arm-linux@gmx.de>wrote:

> Hi Nirav,
> >
> > I am trying cp.b 22000000 10100000 180000 (i.e. copy from RAM to FLASH)
> > Its showing me message flash can't Erase.
> >
> > But when i tried cp.b 10100000 22000000 180000 its working. (i.e. copy
> from
> > FLASH to RAM)
> > Can please anybody tell me what's going wrong??
>
> Maybe you have to unprotect your flash first?
>

Also You have to erase the sector of the Flash before you do the cp
operation.

-Shinose


> Dieter
>
>
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