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(parent: 8a3269f) | patch
[ARM] orion: make sure sched_clock() usage of cnt32_to_63() is safe
authorNicolas Pitre <nico@cam.org>
Fri, 15 May 2009 04:42:36 +0000 (00:42 -0400)
committerNicolas Pitre <nico@cam.org>
Mon, 8 Jun 2009 17:04:54 +0000 (13:04 -0400)
commita399e3fa795afa058e4485b25c498e0c5a860428
treece58f69f27ff8dc3b188f7e66dff9c19910d3646tree | snapshot
parent8a3269fc21cc4405d80b362139c078cf655a505acommit | diff
[ARM] orion: make sure sched_clock() usage of cnt32_to_63() is safe

With a TCLK = 200MHz, the half period of the hardware timer is roughly
10 seconds. Because cnt32_to_63() must be called at least once per
half period of the base hardware counter, it is a bit risky to rely
solely on scheduling to generate frequent enough calls. Let's use a
kernel timer to ensure this.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
arch/arm/plat-orion/time.c diff | blob | history
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