[U-Boot] copy to flash: Flash not Erased

[Wolfgang Denk]

Dear Howard Wang,

In message <1F9C78FA-BE25-4BDF-8A02-3B2EBB48B35E at dsirf.com> you wrote:
> Hi,
> 
> I have some problems with using u-boot writing to flash:  ( arm 920  
> processor )
> 
> first I  use tftp to download the kernel to memory and was successful:
> 
>  >tftp 0x800000 mImage
>  > OK
> 
> then I try to erase part of the flash, seems ok:
> 
>  > erase 0x1c040000 0x1c8FFFFF 		
>  > erased 124 sectors
> 
> then I use cp.b command, failed with the "Flash not Erased" message
> cp.b ${fileaddr} 0x1c040000 ${filesize}
> 	
>  >		copy to Flash...-Flash not Erased.
> 
> and no detailed error message was given.
> 
> any idea what could be wrong ?

Eventually ${filesize} is bigger than 0x1c8FFFFF-0x1c040000 = 8.75 MB,
or you didn't really use "cp.b" but "cp" instead?

Please provide a _complete_ log of all variable settings, commands and
their output.

Best regards,

Wolfgang Denk

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