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arm: zynq: Don't use arm_global_timer with cpufreq 

The timer frequency of the arm_global_timer depends on the CPU
frequency. With cpufreq altering that frequency the arm_global_timer
does not maintain a stable time base. Therefore don't enable that timer
in case cpufreq is enabled.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Soren Brinkmann 2014-02-19 15:14:43 -08:00 committed by Daniel Lezcano
parent b3e90722f6
commit 61f1fc7e92
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-zynq/Kconfig
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@ -13,6 +13,6 @@ config ARCH_ZYNQ
select HAVE_SMP
select SPARSE_IRQ
select CADENCE_TTC_TIMER
select ARM_GLOBAL_TIMER
select ARM_GLOBAL_TIMER if !CPU_FREQ
help
Support for Xilinx Zynq ARM Cortex A9 Platform