[U-Boot-Users] Protected Flash (newbie question)

Wolfgang Denk wd at denx.de
Mon Jul 5 18:33:42 CEST 2004

In message <20040705152311.52074.qmail at web12304.mail.yahoo.com> you wrote:
> I've just compiled and downloaded a copy of u-boot to my 
> Hynix 7202 ARM720T board. I have got a puzzling error, 
> however, when I try to save my updated env variables:
> Writing to Flash...
> Flash write error 92 at address 00020000
> Device protect error.
> Can't write to protected Flash sectors
> Protected 1 sectors
> I've tried 'protect off 20000 3ffff' and then 'save env', 
> but it doesn't work either. Can someone kindly point me
> to the right place to look, so that I can understand what
> could be causing this?

Check your flash driver. It seems to be misconfigured / not correctly
adapted to your flash layout and/or flash chip types or sector sizes.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
The human mind ordinarily operates at only ten percent of its capaci-
ty - the rest is overhead for the operating system.

More information about the U-Boot mailing list