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Commit 7803dc86 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Daniel Lezcano
Browse files

ARM: at91: Implement clocksource selection 



Allow selecting and unselecting the PIT clocksource driver so it doesn't
have to be compiled when unused.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent f712a1e8

arch/arm/mach-at91/Kconfig

+23 −0
Original line number Diff line number Diff line
@@ -107,6 +107,29 @@ config SOC_AT91SAM9 
	    AT91SAM9X35

	    AT91SAM9XE



comment "Clocksource driver selection"



config ATMEL_CLOCKSOURCE_PIT

	bool "Periodic Interval Timer (PIT) support"

	depends on SOC_AT91SAM9 || SOC_SAMA5

	default SOC_AT91SAM9 || SOC_SAMA5

	select ATMEL_PIT

	help

	  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.



config ATMEL_CLOCKSOURCE_TCB

	bool "Timer Counter Blocks (TCB) support"

	default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5

	select ATMEL_TCB_CLKSRC

	help

	  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.



config HAVE_AT91_UTMI

	bool