[U-Boot] NAND bad environment block handling

[Wolfgang Denk]

Dear Frans Meulenbroeks,

In message <817622.67175.qm at web33604.mail.mud.yahoo.com> you wrote:
> 
> > Time to look into UBI, me thinks.
> 
> For u-boot env settings??

Why not? Once the flash is UBI managed, there are  virtually  no  bad
blocks any more.

> My problem that the designated env blocks can be bad or become bad during the lifetime of the device. Not desirable especially not for expensive devices.

As mentioned before, U-Boot supports bad block handling on NAND, so
just allocate a few spare blocks to the environment area.

Best regards,

Wolfgang Denk

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