[Skiboot] [PATCH] occ: hbrt: Change the OCC reset order

Patrick Williams patrick at stwcx.xyz
Thu Oct 15 07:56:46 AEDT 2015

On Wed, Oct 14, 2015 at 05:17:42PM +1100, Stewart Smith wrote:
> Shilpasri G Bhat <shilpa.bhat at linux.vnet.ibm.com> writes:
> > Modify the OCC reset order such that master OCC is reset after the
> > slave OCCs are reset. In Tuleta/Alpine systems 'proc0' will always be
> > the master OCC, which has to be stopped last when FSP sends OCC_RESET
> > command to Opal.
> Is this also true for all OpenPower machines?
> What about for Venice and Naples (and other future chips)?

The Brazos system is the only one today that supports a
master/alt-master.  In that case there is an OCC per node that is the
node master.  The master chip might not be proc0 in the node either.

For all current openpower machines, proc0 is the PNOR and OCC master.
Patrick Williams
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