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1 | /* |
2 | * Machine specific IO port address definition for generic. | |
3 | * Written by Osamu Tomita <tomita@cinet.co.jp> | |
4 | */ | |
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5 | #ifndef __ASM_I8253_H |
6 | #define __ASM_I8253_H | |
d865bea4 | 7 | |
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8 | #include <linux/spinlock.h> |
9 | ||
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10 | /* i8253A PIT registers */ |
11 | #define PIT_MODE 0x43 | |
12 | #define PIT_CH0 0x40 | |
13 | #define PIT_CH2 0x42 | |
14 | ||
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15 | #define PIT_TICK_RATE 1193182UL |
16 | ||
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17 | extern spinlock_t i8253_lock; |
18 | ||
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19 | extern void setup_pit_timer(void); |
20 | ||
9490094b | 21 | #endif /* __ASM_I8253_H */ |