1 files changed, 15 insertions, 0 deletions

diff --git a/include/asm-x86/i8253.h b/include/asm-x86/i8253.h
new file mode 100644
index 000000000000..747548ec5d1d
--- /dev/null
+++ b/include/asm-x86/i8253.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_I8253_H__
+#define __ASM_I8253_H__
+
+/* i8253A PIT registers */
+#define PIT_MODE                0x43
+#define PIT_CH0                 0x40
+#define PIT_CH2                 0x42
+
+extern spinlock_t i8253_lock;
+
+extern struct clock_event_device *global_clock_event;
+
+extern void setup_pit_timer(void);
+
+#endif  /* __ASM_I8253_H__ */