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Message-ID: <3efb10970704211414q7c66c154m79cc06db61eb76be@mail.gmail.com> Date: Sat, 21 Apr 2007 23:14:22 +0200 From: "Remy Bohmer" <l.pinguin@...il.com> To: "Ingo Molnar" <mingo@...e.hu>, "Thomas Gleixner" <tglx@...utronix.de>, "David Brownell" <david-b@...bell.net> Cc: linux-kernel@...r.kernel.org Subject: gtod/clocksource/clockevents documentation Hello All, I need to implement a gtod/clocksource/clockevents implementation for the Atmel ARM AT91SAM9261 CPU, and I am looking for some kernel (interface) documentation about these mechanisms. I already investigated the 'examples'/implementations of other architectures in the kernel, but that did not really help me... I also looked at the patch for the AT91RM9200 CPU posted by David Brownell... I hacked something which now makes the RT kernel to boot, but the time-of-day warps several minutes per second, back and forward in time... ;-) So, Can anybody please give me pointer to some useful documentation and/or examples? The reason behind this initiative is to make the RT-preempt patch compile and work on this architecture. Currently the GENERIC_TIME is not set, which results in several unresolved externals at compile time, and I believe the best way to fix this is to implement proper gtod/clocksource/clockevents to allow the enabling of GENERIC_TIME Kind Regards, Remy Böhmer - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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