From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: Configure reference clock for Versatile Express timers
Date: Tue, 18 Jan 2011 17:44:28 +0000 [thread overview]
Message-ID: <20110118174428.GG16980@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1295368773-14531-1-git-send-email-pawel.moll@arm.com>
On Tue, Jan 18, 2011 at 04:39:33PM +0000, Pawel Moll wrote:
> Timers on Versatile Express mainboard are used as system clock/event
> sources. Driver assumes that they are clocked with 1MHz signal.
> Old V2M firmware apparently configured it by default, but on newer
> boards one can observe that "sleep 1" command takes over 30 seconds
> to finish, as the timers are fed with 32kHz instead...
>
> This patch performs required magic and also removes code clearing
> timer's control registers, as exactly the same operations are
> performed by the timer driver few jiffies later.
It would be nice if these registers were documented...
next prev parent reply other threads:[~2011-01-18 17:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 16:39 [PATCH] arm: Configure reference clock for Versatile Express timers Pawel Moll
2011-01-18 17:44 ` Russell King - ARM Linux [this message]
2011-01-18 18:02 ` Pawel Moll
2011-01-18 18:18 ` Russell King - ARM Linux
2011-01-18 18:28 ` Pawel Moll
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