From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Roese <sr@denx.de>
Date: Thu, 30 Aug 2012 16:15:19 +0200
Subject: [U-Boot] Problems with a P2020 board
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On 08/30/2012 03:12 PM, Joakim Tjernlund wrote:
>> -       Boot Count.  We are keen to use the boot counter feature, but I
>> am struggling to find a suitable register in the P2020.  The file
>> arch/powerpc/lib/bootcount.c list a few locations that work with
>> other PowerPC chips, but I can't find any of those registers in the
>> P2020 documentation.
> 
> Me too on finding such a register.

If you don't have such registers, a bit of reserved SDRAM might be a
solution. That already implemented for some boards. See
bootcount_store() and bootcount_load() in:

board/keymile/km_arm/km_arm.c

This "RAM bootcount driver" will be moved to a common location by the
bootcount consolidation patches that are pending.

Thanks,
Stefan