[PATCHv1 0/2] ARM: socfpga: Soft reset, hotplug and device tree clocks

Arnd Bergmann arnd at arndb.de
Thu Mar 14 09:26:21 EDT 2013


On Thursday 14 March 2013, Pavel Machek wrote:
> 
> Hi!
>  
> > > Just 2 patches for mach-socfpga:
> > > 
> > > 0001: ARM: socfpga: Enable hotplug and soft reset
> > >     - Able to hotplug CPU1 by putting it into reset and bringing back online.
> > > 
> > 
> > Have you seen the discussion on PSCI? There's an ARM doc on it and
> > Linaro session from last week. Is there a possibility you can use that?
> > You would need to be able to run in non-secure mode and implement
> > smc calls.
> 
> I tried googling PSCI, but got:
> 
> Power State Coordination Interface
> System Software on ARM Processors
> This document is only available in a PDF version to registered ARM
> customers.
> 
> Do you have better pointer?

The easiest ist if you look at the kernel source at arch/arm/kernel/psci.c.

I think the registration at ARM is free, but I agree it's annoying to
force people to go through that.

	Arnd



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