[Skiboot] [PATCH] mambo: Update P9 PVR to reflect Scale out 24 core chips

[Vaidyanathan Srinivasan]

* Michael Neuling <mikey at neuling.org> [2017-06-14 17:34:11]:

> The P9 PVR bits 48:51 don't indicate a revision but instead different
> configurations.  From BookIV we have:
>  Bits:  Configuration
>     0:  Scale out 12 cores
>     1:  Scale out 24 cores
>     2:  Scale up 12 cores
>     3:  Scale up 24 cores
> 
> Skiboot will mostly the use "Scale out 24 core" configuration
> (ie. SMT4 not SMT8) so reflect this in mambo.
> 
> Signed-off-by: Michael Neuling <mikey at neuling.org>
> ---
>  external/mambo/skiboot.tcl | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/external/mambo/skiboot.tcl b/external/mambo/skiboot.tcl
> index 9ac765dbb6..6032b6e215 100644
> --- a/external/mambo/skiboot.tcl
> +++ b/external/mambo/skiboot.tcl
> @@ -82,8 +82,8 @@ if { $default_config == "PEGASUS" } {
>      myconf config processor/initial/PVR 0x4b0201
>  }
>  if { $default_config == "P9" } {
> -    # make sure we look like a POWER9 DD2
> -    myconf config processor/initial/PVR 0x4e0200
> +    # PVR configured for POWER9 DD2.0 Scale out 24 Core (ie SMT4)
> +    myconf config processor/initial/PVR 0x4e1200

                                        0x4e4200 for scale out 24 cores??

                                        0x4e1200 means bit 3 (51 is set that is scale-up 24?)
--Vaidy