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i8253.h

/*
 *  Machine specific IO port address definition for generic.
 *  Written by Osamu Tomita <tomita@cinet.co.jp>
 */
#ifndef __ASM_I8253_H
#define __ASM_I8253_H

#include <linux/spinlock.h>

/* i8253A PIT registers */
#define PIT_MODE        0x43
#define PIT_CH0               0x40
#define PIT_CH2               0x42

#define PIT_TICK_RATE         1193182UL

extern spinlock_t i8253_lock;

extern void setup_pit_timer(void);

#endif /* __ASM_I8253_H */

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