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ARM: imx: always use TWD on IMX6Q
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Wed, 6 Apr 2016 15:39:07 +0000 (17:39 +0200)
committerShawn Guo <shawnguo@kernel.org>
Tue, 12 Apr 2016 07:56:55 +0000 (15:56 +0800)
commitacc98009b87a811f9f815650274a1044474cd167
treeb8d471438034086c2f976e9ec32a8138ba27016etree | snapshot
parentf55532a0c0b8bb6148f4e07853b876ef73bc69cacommit | diff
ARM: imx: always use TWD on IMX6Q

There is no reason to limit the TWD to be used on SMP kernels only if the
hardware has it available.
On Wandboard i.MX6SOLO, running PREEMPT-RT and cyclictest I see as max
immediately after start in idle:
UP : ~90us
SMP: ~50us
UP + TWD: ~20us.
Based on this numbers I prefer the TWD over the slightly slower MXC
timer.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm/mach-imx/Kconfig diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git