From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
Date: Wed, 17 Nov 2010 08:38:42 +0000
Subject: [PATCH] nomadik: prevent sched_clock() wraparound
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On Wed, Nov 17, 2010 at 09:34:56AM +0100, Linus Walleij wrote:
> And the Tegra code in mach-tegra/timer.c:
> 
> static cycle_t tegra_clocksource_read(struct clocksource *cs)
> {
>         return cnt32_to_63(timer_readl(TIMERUS_CNTR_1US));
> }
> 
> This just won't fly for long either, the mult for the clocksource is
> usually something in the order of 20.

I thought John/Thomas said that using cnt32_to_63 in there wasn't a good
idea - sounds like it needs to be killed.  Colin?