[PATCH 2/2] ARM: vf610: Use ARM Global Timer as clocksource

Stefan Agner
2014-09-11T12:06:24Z

Use ARM Global Timer as clocksource instead of the PIT timer. This
leaves the PIT timer for other users e.g. the secondary Cortex-M4
core. Also, the Global Timer has double the precission (running at
pheripheral clock compared to IPG clock) and a 64-bit incrementing
counter register.

Signed-off-by: Stefan Agner <stefan@agner.ch>
---
Theoretically we could remove the PIT driver now. But we could also
enable both drivers, but is having two clock source useful for the
Kernel at all?

arch/arm/mach-imx/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 64161aa..adc77180 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -656,7 +656,8 @@ config SOC_VF610
bool "Vybrid Family VF610 support"
select ARM_GIC
select PINCTRL_VF610
- select VF_PIT_TIMER
+ select ARM_GLOBAL_TIMER
+ select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
select PL310_ERRATA_769419 if CACHE_L2X0

help
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2.1.0