From: pawel.moll@arm.com (Pawel Moll)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: Configure reference clock for Versatile Express timers
Date: Tue, 18 Jan 2011 18:28:18 -0000 [thread overview]
Message-ID: <000101cbb73d$7ab743f0$7025cbd0$@moll@arm.com> (raw)
In-Reply-To: <20110118181840.GH16980@n2100.arm.linux.org.uk>
> The only other reference to "System Controller" is at the beginning
> of the document in the preface: "ARM PrimeCell System Controller
> (SP810) Technical Reference Manual (ARM DDI 0254)".
>
> DDI0254 is not published, so there's nothing on the register
> layout.
It's exactly the DDI0254 that contains the information, but - as you have pointed out - it's marked as obsolete and not available any more. Don't really know the reason...
I spent quite a lot of time investigating the problem and it appears that this cell is of little use these days - the only useful function is the timers reference clock muxer. I didn't even know that there the header file with its register offsets exist at all :-) before Will pointed this out...
So - as I said - the named constants are the best I can do.
Cheers!
Pawe?
prev parent reply other threads:[~2011-01-18 18:28 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
2011-01-18 18:02 ` Pawel Moll
2011-01-18 18:18 ` Russell King - ARM Linux
2011-01-18 18:28 ` Pawel Moll [this message]
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