[U-Boot] Problems with a P2020 board

[Kumar Gala]

On Sep 26, 2012, at 7:09 AM, Joakim Tjernlund wrote:

> Joakim Tjernlund/Transmode wrote on 2012/08/30 15:12:08:
>> 
>>> 
>>> Hi.
>>> 
>>> We have a new board which we are suing with U-boot.  The CPU is a P2020.
>>> I am having a  few minor problems, and I was hoping to get some help.
>>> 
>>> -       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
> 
> Did you find a register?

What are the requirements of the bootcount register?  If it needs to persist value across hard resets of the SoC than nothing exists.

If you need a scratch register than you could possibly use one of the MPIC msg registers.

- k