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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-19 17:44:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-19 17:44:13 -0700
commit0f1bdc1815c4cb29b3cd71a7091b478e426faa0b (patch)
treeb4d70c6a305d91bf7d1c8a6bbf87508587d55633 /arch/arm/include
parent80fe02b5daf176f99d3afc8f6c9dc9dece019836 (diff)
parenta18f22a968de17b29f2310cdb7ba69163e65ec15 (diff)
Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: clocksource: convert mips to generic i8253 clocksource clocksource: convert x86 to generic i8253 clocksource clocksource: convert footbridge to generic i8253 clocksource clocksource: add common i8253 PIT clocksource blackfin: convert to clocksource_register_hz mips: convert to clocksource_register_hz/khz sparc: convert to clocksource_register_hz/khz alpha: convert to clocksource_register_hz microblaze: convert to clocksource_register_hz/khz ia64: convert to clocksource_register_hz/khz x86: Convert remaining x86 clocksources to clocksource_register_hz/khz Make clocksource name const
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/i8253.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/i8253.h b/arch/arm/include/asm/i8253.h
new file mode 100644
index 00000000000..70656b69d5c
--- /dev/null
+++ b/arch/arm/include/asm/i8253.h
@@ -0,0 +1,15 @@
+#ifndef __ASMARM_I8253_H
+#define __ASMARM_I8253_H
+
+/* i8253A PIT registers */
+#define PIT_MODE 0x43
+#define PIT_CH0 0x40
+
+#define PIT_LATCH ((PIT_TICK_RATE + HZ / 2) / HZ)
+
+extern raw_spinlock_t i8253_lock;
+
+#define outb_pit outb_p
+#define inb_pit inb_p
+
+#endif