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| author | Tony Lindgren <tony@atomide.com> | 2010-08-04 14:43:45 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-08-04 14:43:45 +0300 |
| commit | 7590d1defdc720a97a9e186f45f529c4ae1b40f7 (patch) | |
| tree | e7ffdc043a2847f410d654d8e99e001f3138937a /arch/arm/mach-shmobile/Kconfig | |
| parent | 7e788b4289bb025a96e327c604cb2db92e17108f (diff) | |
| parent | 869fef41547db95df8523bf67845a21313709428 (diff) | |
Merge branch 'devel-map-io' into omap-for-linus
Diffstat (limited to 'arch/arm/mach-shmobile/Kconfig')
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index f2b88c5fe14..4c704b4e8b3 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -70,6 +70,18 @@ endmenu menu "Timer and clock configuration" +config SHMOBILE_TIMER_HZ + int "Kernel HZ (jiffies per second)" + range 32 1024 + default "128" + help + Allows the configuration of the timer frequency. It is customary + to have the timer interrupt run at 1000 Hz or 100 Hz, but in the + case of low timer frequencies other values may be more suitable. + SH-Mobile systems using a 32768 Hz RCLK for clock events may want + to select a HZ value such as 128 that can evenly divide RCLK. + A HZ value that does not divide evenly may cause timer drift. + config SH_TIMER_CMT bool "CMT timer driver" default y |