[U-Boot-Users] [rfc] new spiflash subsystem

[Ulf Samuelsson <ulf@atmel.com>]

>>>> Erasing the entire SPI flash is generally stupid, since you store the
>>>> environment there. You typically also store the initial bootloader and
>>>> U-Boot.
>>> so the user is stupid if they erase the entire flash ?  you could say the same 
>>> thing about any flash type.
>>>
> 
> I have valid reasons, better _requirements_, for erasing an
> entire spi flash and have done so many times. I never realized
> that I was stupid ... and for all these years!  ;-)
> 
>>>> Very rarely you want to erase the complete flash ,and a protection
>>>> mechanism is needed to avoid accidental overwrites.
>>>> The current solution allows dataflash pages to be protected.
>> 
>> I disagree on some product you use a spi flash to store other code and
>> not nessarely store u-boot in it? (you can have 2 falsh)


OK,  let me rephrase the statement:
It is stupid to allow the user to *accidently* erase the environment sector and the U-boot area
The proposed user interface will do this, if you do not give any address parameters
to the erase command.

Best Regards
Ulf Samuelsson