| Thomas Gleixner | 0190dae | 2007-10-12 23:04:06 +0200 | [diff] [blame^] | 1 | #ifndef __ASM_I8253_H__ |
| 2 | #define __ASM_I8253_H__ |
| 3 | |
| 4 | #ifdef CONFIG_X86_64 |
| 5 | # include <asm/8253pit.h> |
| Thomas Gleixner | 96a388d | 2007-10-11 11:20:03 +0200 | [diff] [blame] | 6 | #endif |
| Thomas Gleixner | 0190dae | 2007-10-12 23:04:06 +0200 | [diff] [blame^] | 7 | |
| 8 | /* i8253A PIT registers */ |
| 9 | #define PIT_MODE 0x43 |
| 10 | #define PIT_CH0 0x40 |
| 11 | #define PIT_CH2 0x42 |
| 12 | |
| 13 | extern spinlock_t i8253_lock; |
| 14 | |
| 15 | #ifdef CONFIG_GENERIC_CLOCKEVENTS |
| 16 | |
| 17 | extern struct clock_event_device *global_clock_event; |
| 18 | |
| 19 | extern void setup_pit_timer(void); |
| 20 | |
| 21 | #endif |
| 22 | |
| 23 | #endif /* __ASM_I8253_H__ */ |