[U-Boot-Users] Increasing U-Boot partition size

[Jerry Van Baren]

David Hawkins wrote:
>> Arrr, my insanity.  Wolfgang is correct, of course.
>>
> 
> Gee, and I was just going to ask why on earth you liked
> high-boot :)
> 
> I've seen one novel use of high-boot that could make it
> useful if you're lazy and can't be bothered plugging in
> your debugger ;)

Or the hardware weenies have it in a different building.

> Assuming your board has a toggle switch that sets the
> state of BMS in the RCW (as most Freescale boards do),
> you can put a 'good' version of U-Boot at say the
> high-boot location, and the test version at the low-boot.
> If the low-boot version doesn't boot, power-down, flip the
> BMS toggle switch, power-up and boot-high, reflash to
> the next low-boot test version, and continue.
> 
> I personally haven't tried the trick, but it sounded
> like a nice idea.

That works great.  It saved my a$$ there more than once.  :-/  (The 
Freescale eval boards generally support this - very handy.)

> Low-boot is the only sane method for booting, since
> high-boot sticks the bootloader 8MB into your 32MB/64MB/etc
> Flash ... I mean who uses 8MB Flash these days ... :)
> 
> Cheers,
> Dave

Best regards,
gvb