OMAP: move GP timer selection alongside other timer options

[linux-2.6-omap-h63xx.git] / arch / arm / plat-omap / Kconfig

diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 2465aea097a63836ad8678dcea32483f6a135787..6c9f09257db40b50ff14777a633894356724caf2 100644 (file)
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -214,6 +214,21 @@ config OMAP_32K_TIMER_HZ
          Kernel internal timer frequency should be a divisor of 32768,
          such as 64 or 128.
 
+config OMAP_TICK_GPTIMER
+       int "GPTIMER used for system tick timer"
+       depends on ARCH_OMAP2 || ARCH_OMAP3
+       range 1 12
+       default 1
+       help
+         Linux uses one of the twelve on-board OMAP GPTIMER blocks to generate
+         system tick interrupts.  The twelve GPTIMERs have slightly
+         different powerdomain, source clock, and security properties
+         (mostly documented in the OMAP3 TRMs) that can affect the selection
+         of which GPTIMER to use.  The historical default is GPTIMER1.
+         If CONFIG_OMAP_32K_TIMER is selected, Beagle may require GPTIMER12
+         due to hardware sensitivity to glitches on the OMAP 32kHz clock
+         input.
+
 config OMAP_DM_TIMER
        bool "Use dual-mode timer"
        depends on ARCH_OMAP16XX || ARCH_OMAP24XX || ARCH_OMAP34XX