[U-Boot-Users] Setting strataflash lock bit accidentally

[llandre]

>> Let's assume that, because a software bug, an application has 
>> accidentally set the lock bit of the flash sector used to store the 
>> U-Boot environment. In this case, when trying to store a new environment 
>> with the saveenv command, U-Boot would not be able to complete the 
>> operation. Is it enough to define CFG_FLASH_PROTECTION in order to 
>> handle this situation and to allow U-Boot to unlock the sector (same 
>> thing would happen in case the locked sectors fall in the memrory area 
>> devoted to store kernels or ramsisks)? If no, how do you suggest to 
>> manage this situation?
> 
> Use MTD tools under Linux to unlock the flash?

Indeed this is a possible solution but I'm looking for a general one 
implemented in u-boot. In fact it must work with any operating system 
and I must assume o.s. might not provide MTD or similar tools.


-- 
llandre

DAVE Electronics System House - R&D Department
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