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Re: [PATCH] arm64: dts: foundation-v8: Enable PSCI mode

From Mark Rutland <mark.rutland@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH] arm64: dts: foundation-v8: Enable PSCI mode
Date 2017-09-18 18:20 +0200
Message-ID <ur6W6-7F-15@gated-at.bofh.it> (permalink)
References <ur6jo-85s-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi Daniel,

On Mon, Sep 18, 2017 at 04:38:32PM +0100, Daniel Thompson wrote:
> Currently if the Foundation model is running ARM Trusted Firmware then
> the kernel, which is configured to use spin tables, cannot start secondary
> processors or "power off" the simulation.
> 
> Add a couple of labels to the include file, and introduce a new .dts
> file that uses these to override the enable-method.
> 
> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

This looks good, but has the unfortunate effect of leaving the
(irrelevant) cpu-release-addr property in the PSCI dts files, as that's
in the underlying dtsi file.

Could we split spin-table / PSCI parts into separate dtsi files?

e.g. have:

* foundation-v8.dtsi
* foundation-v8-gicv{2,3}.dtsi
* foundation-v8-{psci,spin-table}.dtsi

... and then combine those to build the dts files we want.

FWIW, with that:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Thanks,
Mark.

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Thread

[PATCH] arm64: dts: foundation-v8: Enable PSCI mode Daniel Thompson <daniel.thompson@linaro.org> - 2017-09-18 17:40 +0200
  Re: [PATCH] arm64: dts: foundation-v8: Enable PSCI mode Mark Rutland <mark.rutland@arm.com> - 2017-09-18 18:20 +0200
    Re: [PATCH] arm64: dts: foundation-v8: Enable PSCI mode Daniel Thompson <daniel.thompson@linaro.org> - 2017-09-19 18:00 +0200
      Re: [PATCH] arm64: dts: foundation-v8: Enable PSCI mode Mark Rutland <mark.rutland@arm.com> - 2017-09-19 18:30 +0200
  [PATCH v2] arm64: dts: foundation-v8: Enable PSCI mode Daniel Thompson <daniel.thompson@linaro.org> - 2017-09-19 20:40 +0200
    Re: [PATCH v2] arm64: dts: foundation-v8: Enable PSCI mode Sudeep Holla <sudeep.holla@arm.com> - 2017-09-20 11:50 +0200
      Re: [PATCH v2] arm64: dts: foundation-v8: Enable PSCI mode Daniel Thompson <daniel.thompson@linaro.org> - 2017-09-20 13:20 +0200

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