clocksource: SuperH TMU Timer driver

This patch adds a TMU driver for the SuperH architecture. The TMU driver is a platform driver with early platform support to allow using a TMU channel as clockevent or clocksource during system bootup or later. Clocksource or clockevent can be selected. Both periodic and oneshot clockevents are supported. Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
chewitt · May 3, 2009 · 9570ef2 · 9570ef2
1 parent 3280c88
commit 9570ef2
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diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
@@ -116,6 +116,9 @@ config SYS_SUPPORTS_CMT
 config SYS_SUPPORTS_MTU2
 	bool
 
+config SYS_SUPPORTS_TMU
+	bool
+
 config STACKTRACE_SUPPORT
 	def_bool y
 
@@ -470,6 +473,15 @@ config SH_TMU
 	help
 	  This enables the use of the TMU as the system timer.
 
+config SH_TIMER_TMU
+	bool "TMU timer driver"
+	depends on !SH_TMU && SYS_SUPPORTS_TMU
+	default y
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	help
+	  This enables the build of the TMU timer driver.
+
 config SH_TIMER_CMT
 	bool "CMT timer driver"
 	depends on SYS_SUPPORTS_CMT

diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_X86_PM_TIMER)	+= acpi_pm.o
 obj-$(CONFIG_SCx200HR_TIMER)	+= scx200_hrt.o
 obj-$(CONFIG_SH_TIMER_CMT)	+= sh_cmt.o
 obj-$(CONFIG_SH_TIMER_MTU2)	+= sh_mtu2.o
+obj-$(CONFIG_SH_TIMER_TMU)	+= sh_tmu.o