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yaml --- r: 201397 b: refs/heads/master c: 5da3e71 h: refs/heads/master i: 201395: 60fd7b3 v: v3
git-mirror · Jul 29, 2010 · d97d4ad · d97d4ad
1 parent a9ed861
commit d97d4ad
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Showing 3 changed files with 14 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 58c7d9d2e6116ec694a5af5b8a0aca1467673899
+refs/heads/master: 5da3e714e30d40145f4dd37d79de6bbbcb9e6137
diff --git a/trunk/arch/arm/Kconfig b/trunk/arch/arm/Kconfig
@@ -1189,6 +1189,7 @@ config HZ
 	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
 	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
 	default AT91_TIMER_HZ if ARCH_AT91
+	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
 	default 100
 
 config THUMB2_KERNEL

diff --git a/trunk/arch/arm/mach-shmobile/Kconfig b/trunk/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