Re: High resolution timers on AT91SAM926x

[David Brownell]

> Is there a way to enable high resolution timers on AT91SAM926x?

Update PIT to support the clocksource/clockevent framework:
  http://marc.info/?l=linux-arm-kernel&m=119940724711435&w=2

Declare timer/counter block platform devices:
  http://marc.info/?l=linux-arm-kernel&m=120302318811110&w=2

Use timer/counter blocks for better clocksource and clockevents:
  http://marc.info/?l=linux-kernel&m=120373043520279&w=2
  http://marc.info/?l=linux-kernel&m=120373063320487&w=2

The focus in that last patch is on NO_HZ support -- so the
clockevents run at 32 KiHz (about 31 usec precision for HRT)
to allow overall HZ to run below 1 where practical.   If you
need even higher precision, you could update that clockevent
code to use a different base clock.

Those last two patches are in some MM tree, and Haavard has
some updates to then (which don't much affect functionality).

I understand the upcoming 2.6.24-at91 patch will include the
first two patches.

- Dave
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