From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Date: Tue, 01 Jun 2004 16:40:47 +0000 Subject: Re: Real time clock on ia64 platforms Message-Id: <1086108046.4700.69.camel@tdi> List-Id: References: <40BC3558.7040606@hob.de> In-Reply-To: <40BC3558.7040606@hob.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org 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