LXR linux/include/asm-mips/i8253.h

   1/*
   2 *  Machine specific IO port address definition for generic.
   3 *  Written by Osamu Tomita <tomita@cinet.co.jp>
   4 */
   5#ifndef __ASM_I8253_H
   6#define __ASM_I8253_H
   7
   8#include <linux/spinlock.h>
   9
  10/* i8253A PIT registers */
  11#define PIT_MODE                0x43
  12#define PIT_CH0                 0x40
  13#define PIT_CH2                 0x42
  14
  15#define PIT_TICK_RATE           1193182UL
  16
  17extern spinlock_t i8253_lock;
  18
  19extern void setup_pit_timer(void);
  20
  21#endif /* __ASM_I8253_H */
  22