[Skiboot] [RFC] occ: Add pstate corresponding to base frequency to DT

[Shilpasri G Bhat]

On 02/11/2019 10:48 AM, Shilpasri G Bhat wrote:
> Unlike POWER8, nominal frequency is not the highest guaranteed
> frequency of the POWER9 chip. In POWER9, the highest guaranteed
> frequency is greater than the nominal frequency and is referred
> to as base frequency. In POWER9 base frequency is the highest
> frequency the processor will operate at when ALL cores are active
> and in ANY operating condition. This patch exports the turbo pstate
> as the base frequency as per OCC documentation.
> 
> Signed-off-by: Shilpasri G Bhat <shilpa.bhat at linux.vnet.ibm.com>
> ---
> - Using RFC tag till OCC-OPAL interface doc is upstreamed to include
>   turbo pstate as base frequency.

This is updated in OCC-OPAL interface document (Page number 127)
https://github.com/open-power/docs/blob/master/occ/OCC_P9_FW_Interfaces.pdf