linux-kernel - Re: [PATCH 1/4] clocksource: Add support for the Mediatek SoCs

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Message-ID: <129772722.mXH1xx9vCv@wuerfel>
Date:	Fri, 11 Apr 2014 11:21:59 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Matthias Brugger <matthias.bgg@...il.com>
Cc:	Olof Johansson <olof@...om.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Thierry Reding <thierry.reding@...il.com>,
	Florian Vaussard <florian.vaussard@...l.ch>,
	Jonathan Cameron <jic23@...nel.org>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Silvio F <silvio.fricke@...il.com>,
	Heiko Stübner <heiko.stuebner@...com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/4] clocksource: Add support for the Mediatek SoCs

On Friday 11 April 2014 11:07:35 Matthias Brugger wrote:
> >
> > Of course, you'll still need these for the A9-based platforms, so the
> > driver might very well be needed anyway. Some of the earlier patches
> > seem to be for A7-based systems so I'm not sure what you're primarily
> > working on here. 
> 
> I'm working on a Cortex-A7 based platform. But ARM_ARCH_TIMER seems to
> get no clocking.
> Initializing the timer fails with:
> Architected timer frequency not available
> 
> That's why I use the SoC timer.

Are you sure you're not just missing a "clock-frequency" property
in your DT node for the timer?

	Arnd
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