Commit acc98009 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Shawn Guo
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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: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent f55532a0

arch/arm/mach-imx/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -526,7 +526,7 @@ config SOC_IMX6Q 
	bool "i.MX6 Quad/DualLite support"

	select ARM_ERRATA_764369 if SMP

	select HAVE_ARM_SCU if SMP

	select HAVE_ARM_TWD if SMP

	select HAVE_ARM_TWD

	select PCI_DOMAINS if PCI

	select PINCTRL_IMX6Q

	select SOC_IMX6

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