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

From: Stefan Agner
Date: Thu Sep 11 2014 - 08:06:43 EST


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@xxxxxxxx>
---
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
--
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/