From: Alex Williamson <alex.williamson@hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Real time clock on ia64 platforms
Date: Tue, 01 Jun 2004 16:40:47 +0000 [thread overview]
Message-ID: <1086108046.4700.69.camel@tdi> (raw)
In-Reply-To: <40BC3558.7040606@hob.de>
On Tue, 2004-06-01 at 01:50, Christian Hildner wrote:
> Hi,
>
> someone may know what kind of RTC device the ia64 platforms (HP ZX 6000
> + i2000) use. I want to access it directly, without using EFI calls.
This is strongly not recommended. On HP chipset boxes, the devices
are only designed to be accessed via the EFI calls (and yes, EFI
firmware can and does work around bugs in the RTC). There's also no
architected way to find the real RTC in the address map. Why do you
need to poke it directly?
Alex
next prev parent reply other threads:[~2004-06-01 16:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-01 7:50 Real time clock on ia64 platforms Christian Hildner
2004-06-01 16:21 ` Matthew Wilcox
2004-06-01 16:40 ` Alex Williamson [this message]
2004-06-01 17:22 ` Christoph Lameter
2004-06-02 5:56 ` Christian Hildner
2004-06-02 6:04 ` Stephane Eranian
2004-06-02 6:26 ` Christian Hildner
2004-06-02 6:41 ` Christian Hildner
2004-06-02 6:51 ` Stephane Eranian
2004-06-02 7:01 ` Christian Hildner
2004-06-02 7:14 ` Stephane Eranian
2004-06-02 7:22 ` Robin Holt
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