From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] Convert highbank to use PSCI calls
Date: Thu, 28 Feb 2013 16:10:38 +0000 [thread overview]
Message-ID: <20130228161038.GF32130@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <201302272025.19848.arnd@arndb.de>
On Wed, Feb 27, 2013 at 08:25:19PM +0000, Arnd Bergmann wrote:
> On Wednesday 27 February 2013, Will Deacon wrote:
> > As long as we remain compatible with "linux,dummy-virt" then I'm not fussed
> > what happens to the support code. I don't envisage adding anything else to
> > it that can't live under drivers/ (e.g. new virtio devices).
>
> The idea with my patch is that you don't actually have to check anything
> against "linux,dummy-virt" or another top-level "compatible value.
Great, I've got no problem killing of the short-lived mach-virt then!
> Basically any device tree would boot as long as all device you want to
> use (including timer, irqchip, smp CPU setup method, ...) can be brought
> up using the DT information. The SMP stuff is the only bit missing
> right now, any other field of the machine_desc structure is already
> optional with my patch, and if all fields are NULL, you can leave
> out the entire structure. The best part of this is that an empty
> machine_desc is exactly what we have on arm64, so any machine that
> is supported on arm64 could also be supported on arch/arm without
> any machine specific code.
Keeping on the same topic: using a PSCI implementation as the default SMP
ops would extend the arm/arm64 compatibility to SMP booting, as both are
PSCI-capable.
Will
next prev parent reply other threads:[~2013-02-28 16:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-27 3:42 [PATCH 0/4] Convert highbank to use PSCI calls Rob Herring
2013-02-27 3:42 ` [PATCH 1/4] ARM: highbank: clean-up some unused includes Rob Herring
2013-02-27 3:42 ` [PATCH 2/4] dts: calxeda: add ARM PSCI binding Rob Herring
2013-02-27 3:42 ` [PATCH 3/4] cpuidle: calxeda: add support to use PSCI calls Rob Herring
2013-02-27 3:42 ` [PATCH 4/4] ARM: highbank: adapt to use ARM " Rob Herring
2013-02-27 8:58 ` [PATCH 0/4] Convert highbank to use " Arnd Bergmann
2013-02-27 13:51 ` Rob Herring
2013-02-27 17:14 ` Will Deacon
2013-02-27 20:25 ` Arnd Bergmann
2013-02-28 16:10 ` Will Deacon [this message]
2013-02-27 17:18 ` Will Deacon
2013-02-27 17:25 ` Rob Herring
2013-02-28 16:14 ` Will Deacon
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