#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