ARM: 7523/1: arch_timers: enable the use of the virtual timer

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At the moment, the arch_timer driver only uses the physical timer,
which can cause problem if PL2 hasn't enabled PL1 access in CNTHCTL,
which is likely in a virtualized environment. Instead, the virtual
timer is always available.

This patch enables the use of the virtual timer, unless no
interrupt is provided in the DT for it, in which case it falls
back to the physical timer.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Marc Zyngier 2012-09-07 18:09:57 +01:00 • committed by Russell King

parent 55d512e245

commit f48b5f1279

1 changed files with 241 additions and 102 deletions

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arch/arm/kernel/arch_timer.c

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