clocksource: Add Kconfig entries for CMT, MTU2, TMU and STI

Add Kconfig entries for CMT, MTU2, TMU and STI to
drivers/clocksource/Kconfig. This will allow us to
get rid of duplicated entires in architecture code
such as arch/sh and arch/arm/mach-shmobile.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
(cherry picked from commit fd3f1270d237d1afb344ee6bfd0e50c488c29e34)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index cd6950f..4f754a9 100644 (file)
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -140,3 +140,47 @@ config VF_PIT_TIMER
        bool
        help
          Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
+
+config SYS_SUPPORTS_SH_CMT
+        bool
+
+config SYS_SUPPORTS_SH_MTU2
+        bool
+
+config SYS_SUPPORTS_SH_TMU
+        bool
+
+config SYS_SUPPORTS_EM_STI
+        bool
+
+config SH_TIMER_CMT
+       bool "Renesas CMT timer driver" if COMPILE_TEST
+       default SYS_SUPPORTS_SH_CMT
+       help
+         This enables build of a clocksource and clockevent driver for
+         the Compare Match Timer (CMT) hardware available in 16/32/48-bit
+         variants on a wide range of Mobile and Automotive SoCs from Renesas.
+
+config SH_TIMER_MTU2
+       bool "Renesas MTU2 timer driver" if COMPILE_TEST
+       default SYS_SUPPORTS_SH_MTU2
+       help
+         This enables build of a clockevent driver for the Multi-Function
+         Timer Pulse Unit 2 (TMU2) hardware available on SoCs from Renesas.
+         This hardware comes with 16 bit-timer registers.
+
+config SH_TIMER_TMU
+       bool "Renesas TMU timer driver" if COMPILE_TEST
+       default SYS_SUPPORTS_SH_TMU
+       help
+         This enables build of a clocksource and clockevent driver for
+         the 32-bit Timer Unit (TMU) hardware available on a wide range
+         SoCs from Renesas.
+
+config EM_TIMER_STI
+       bool "Renesas STI timer driver" if COMPILE_TEST
+       default SYS_SUPPORTS_EM_STI
+       help
+         This enables build of a clocksource and clockevent driver for
+         the 48-bit System Timer (STI) hardware available on a SoCs
+         such as EMEV2 from former NEC Electronics.