summaryrefslogtreecommitdiff
path: root/arch/mips/include/asm/i8253.h
blob: 9ad011366f73190cce3527dbc754d3abad61ffb5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
/*
 *  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_LATCH		LATCH

extern raw_spinlock_t i8253_lock;

extern void setup_pit_timer(void);

#define inb_pit inb_p
#define outb_pit outb_p

#endif /* __ASM_I8253_H */