Tioga Pass OpenBMC 2.8

[Patrick Voelker]

The main issue I'm having is understanding the bare minimum requirements for BMC involvement in Tioga Pass power on.  I've found the recipe fb-powerctrl which sets a couple of GPIOs but beyond that I can't figure out how the BMC is enabling power on.  I'm missing something.

Is this something you can help with?

> -----Original Message-----
> From: openbmc [mailto:openbmc-
> bounces+patrick_voelker=phoenix.com at lists.ozlabs.org] On Behalf Of
> Patrick Voelker
> Sent: Monday, September 14, 2020 10:30 AM
> Subject: RE: Tioga Pass OpenBMC 2.8
> 
> What would an application need to do to control power for the host?  Power
> control while in u-boot _should_ be as simple as enabling the power button
> passthrough.
> 
> > -----Original Message-----
> > From: Vijay Khemka [mailto:vijaykhemka at fb.com]
> > Subject: Re: Tioga Pass OpenBMC 2.8
> >
> > So if BMC is not running then you can control power manually by power
> > button or reset button. As far as I know There is no application in uboot
> > which can control power for host, It is done through BMC when it is booted
> > to linux and power control is running.
> >
> > Please let me know if I am missing anything here.
> >
> > Regards
> > -Vijay