arch/arm/include/asm/i8253.h

   1 #ifndef __ASMARM_I8253_H
   2 #define __ASMARM_I8253_H
   3
   4 /* i8253A PIT registers */
   5 #define PIT_MODE        0x43
   6 #define PIT_CH0         0x40
   7
   8 #define PIT_LATCH       ((PIT_TICK_RATE + HZ / 2) / HZ)
   9
  10 extern raw_spinlock_t i8253_lock;
  11
  12 #define outb_pit        outb_p
  13 #define inb_pit         inb_p
  14
  15 #endif