[U-Boot-Users] flash protect question

[U-Boot-Users] flash protect question

[Robin Getz]

I am working on getting the software protection working - but have one 
quick question:

  - is the structure info->protect[n] suppose to be stored in non-volatile 
memory on a "saveenv"? It didn't seem to be, and thus every time I do a 
'reset', it current is set to the default (protect U-boot and nothing else.

It didn't really say in the Manual if the software protection was volatile 
or not.
http://www.denx.de/twiki/bin/view/DULG/UBootCmdGroupFlash#Section_5.9.3.4.

-Robin

[U-Boot-Users] flash protect question

[Shawn Jin]

>   - is the structure info->protect[n] suppose to be stored in non-volatile
> memory on a "saveenv"? It didn't seem to be, and thus every time I do a
> 'reset', it current is set to the default (protect U-boot and nothing else.

To my understanding it's volatile. The protected sectors usually
stores uboot itself during the flash initialization. Once you reset
the board, the only sectors protected are those protected during the
initialization.

Regards,
-Shawn.

[U-Boot-Users] flash protect question

[Wolfgang Denk]

In message <6.1.1.1.0.20050221150114.01dec810@ptg1.spd.analog.com> you wrote:
> 
>   - is the structure info->protect[n] suppose to be stored in non-volatile 
> memory on a "saveenv"? It didn't seem to be, and thus every time I do a 

No, it is not.

> 'reset', it current is set to the default (protect U-boot and nothing else.

Wrong. The default is to protect U-Boot and the envrionment variables.

> It didn't really say in the Manual if the software protection was volatile 
> or not.

You may call it volatile.

Best regards,

Wolfgang Denk

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