| Ralf Baechle | d865bea | 2007-10-11 23:46:10 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Machine specific IO port address definition for generic. |
| 3 | * Written by Osamu Tomita <tomita@cinet.co.jp> |
| 4 | */ |
| Ralf Baechle | 9490094 | 2007-10-22 15:17:39 +0100 | [diff] [blame] | 5 | #ifndef __ASM_I8253_H |
| 6 | #define __ASM_I8253_H |
| Ralf Baechle | d865bea | 2007-10-11 23:46:10 +0100 | [diff] [blame] | 7 | |
| Ralf Baechle | 74521c2 | 2007-11-02 17:26:06 +0000 | [diff] [blame] | 8 | #include <linux/spinlock.h> |
| 9 | |
| Ralf Baechle | d865bea | 2007-10-11 23:46:10 +0100 | [diff] [blame] | 10 | /* i8253A PIT registers */ |
| 11 | #define PIT_MODE 0x43 |
| 12 | #define PIT_CH0 0x40 |
| 13 | #define PIT_CH2 0x42 |
| 14 | |
| Ralf Baechle | cfb6f26 | 2007-11-15 23:42:11 +0000 | [diff] [blame] | 15 | #define PIT_TICK_RATE 1193182UL |
| 16 | |
| Ralf Baechle | 74521c2 | 2007-11-02 17:26:06 +0000 | [diff] [blame] | 17 | extern spinlock_t i8253_lock; |
| 18 | |
| Ralf Baechle | d865bea | 2007-10-11 23:46:10 +0100 | [diff] [blame] | 19 | extern void setup_pit_timer(void); |
| 20 | |
| Ralf Baechle | 9490094 | 2007-10-22 15:17:39 +0100 | [diff] [blame] | 21 | #endif /* __ASM_I8253_H */ |