Tioga Pass OpenBMC 2.8

[Vijay Khemka]

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
 
From: Patrick Voelker <Patrick_Voelker at phoenix.com>
Date: Thursday, September 10, 2020 at 2:40 PM
To: Vijay Khemka <vijaykhemka at fb.com>, Neil Bradley <Neil_Bradley at phoenix.com>, "openbmc at lists.ozlabs.org" <openbmc at lists.ozlabs.org>
Cc: Amithash Prasad <amithash at fb.com>
Subject: RE: Tioga Pass OpenBMC 2.8
 
I’m referring to the interactive u-boot prompt that you can access by pressing a key on the BMC serial console to stop the BMC boot to linux.
 
From: Vijay Khemka [mailto:vijaykhemka at fb.com] 
Sent: Thursday, September 10, 2020 2:13 PM
To: Patrick Voelker; Neil Bradley; openbmc at lists.ozlabs.org
Cc: Amithash Prasad
Subject: Re: Tioga Pass OpenBMC 2.8
 
Hi Patrick,
What exactly you mean by stopped at u-boot prompt, do you mean bmc stopped at u-boot?
 
Regards
-Vijay
 
From: Patrick Voelker <Patrick_Voelker at phoenix.com>
Date: Wednesday, September 9, 2020 at 4:13 PM
To: Vijay Khemka <vijaykhemka at fb.com>, Neil Bradley <Neil_Bradley at phoenix.com>, "openbmc at lists.ozlabs.org" <openbmc at lists.ozlabs.org>
Cc: Amithash Prasad <amithash at fb.com>
Subject: RE: Tioga Pass OpenBMC 2.8
 
Vijay,
 
We’re having success with power control once booted into Linux (with the Facebook OpenBMC 2.8 tiogapass build) but can’t seem to control the power when stopped at the u-boot prompt.  Is that something that should be working?
 
If not, can you help me identify the minimum critical differences besides enabling the GPIOE passthrough?  Power control in u-boot is an important goal for our development.  I tried using all my learnings from wolfpass to get it to work but have not been successful yet.
 
Regards, Patrick