[U-Boot] [PATCH v2 3/7] spl: nand: support redundant u-boot image

[Scott Wood]

On Sat, 2016-06-04 at 08:15 +0200, Boris Brezillon wrote:
> On Fri, 03 Jun 2016 20:15:16 -0500
> Scott Wood <oss at buserror.net> wrote:
> 
> > How does the failure get communicated to later
> > parts of the system that would be responsible for such reflashing?
> 
> Linux is taking care of that (a script tries to read the u-boot
> partition, and if fails it reflashes it with the content of the
> u-boot-backup partition, or with a reference u-boot.bin file).
> I guess u-boot could do it too.
> 
> Anyway, that's a different story ;).

It seemed like it would be good to export the information if possible (e.g. an
environment variable) rather than rereading and thus making failures happen
twice as quickly.  But that can wait until someone actually wants to use it
that way.

-Scott