[PATCH v3 05/12] firmware: tegra: Add BPMP support

Thierry Reding thierry.reding at gmail.com
Mon Aug 22 08:00:58 PDT 2016


On Mon, Aug 22, 2016 at 03:24:28PM +0100, Jon Hunter wrote:
> 
> On 22/08/16 13:54, Thierry Reding wrote:
> > * PGP Signed by an unknown key
> > 
> > On Mon, Aug 22, 2016 at 10:26:50AM +0100, Jon Hunter wrote:
> >>
> >> On 19/08/16 18:32, Thierry Reding wrote:
> >>> From: Thierry Reding <treding at nvidia.com>
> >>>
> >>> The Boot and Power Management Processor (BPMP) is a co-processor found
> >>> on Tegra SoCs. It is designed to handle the early stages of the boot
> >>> process and offload power management tasks (such as clocks, resets,
> >>> powergates, ...) as well as system control services.
> >>>
> >>> Compared to the ARM SCPI, the services provided by BPMP are message-
> >>> based rather than method-based. The BPMP firmware driver provides the
> >>> services to transmit data to and receive data from the BPMP. Users can
> >>> also register an MRQ, for which a service routine will be run when a
> >>> corresponding event is received from the firmware.
> >>
> >> MRQ?
> > 
> > I think that means "Message ReQuest", which is sort of like an IRQ but
> > the user will receive a message (with potentially payload) instead. Do
> > you want me to spell that out in the commit message, or what would you
> > suggest?
> 
> I think that if we simply say 'Message ReQuest (MRQ)" it becomes clearer
> what this is. Otherwise, google returns everything from 'most recent
> quarter' to canadian rock bands :-)

Okay, done.

Thierry
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