Allow selecting and unselecting the PIT clocksource driver so it doesn't
have to be compile when unused.
Signed-off-by: Alexandre Belloni <alexandre.bell...@bootlin.com>
arch/arm/mach-at91/Kconfig | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 6d870421a7a6..2d8ca72f9ecf 100644
@@ -106,6 +106,31 @@ config SOC_AT91SAM9
+comment "Clocksource driver selection"
+ bool "Periodic Interval Timer (PIT) support"
+ depends on SOC_AT91SAM9 || SOC_SAMA5
+ default SOC_AT91SAM9 || SOC_SAMA5
+ select ATMEL_PIT
+ Select this to get a clocksource based on the Atmel Periodic Interval
+ Timer. It has a relatively low resolution and the TC Block clocksource
+ should be preferred.
+ bool "Timer Counter Blocks (TCB) support"
+ depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5 || COMPILE_TEST
+ default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5
+ depends on !ATMEL_TCLIB
+ select ATMEL_ARM_TCB_CLKSRC
+ Select this to get a high precision clocksource based on a
+ TC block with a 5+ MHz base clock rate.
+ On platforms with 16-bit counters, two timer channels are combined
+ to make a single 32-bit timer.
+ It can also be used as a clock event device supporting oneshot mode.