[U-Boot] freescale i.MX28 mxsboot NAND booting on mx28evk bad blocks

[Paul B. Henson]

On 4/19/2013 6:22 PM, Trent Piepho wrote:

>> Hmm, possibly; I guess that would be conceptually simpler but
>> require more commands to execute to get done.
>
> Don't see why.  If mxsboot wrote both files at once, there'd be the
> same number of commands to generate them.

Well, you'd have to copy two files instead of one to say SD, and run the
mmcload command twice instead of once, but now I'm just being pedantic :).

> While U-boot gets the first one correct (other than the bad block
> marker), it doesn't write the 3 after it correctly.

So if the first one were ever corrupted, the boot would fail. It seems 
like that would be worth fixing.

> supports two firmware images to boot from.  That's one of the reasons
> why the output of mxsboot is so big, as it contains two images.  It's
> not clear to me if the bootloader supports switching between image in
> any useful way.

 From the limited understanding I have of it, no, the second image is 
only loaded if the first one fails.