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1da177e4 LT |
1 | #ifndef __ASM_SH_DELAY_H |
2 | #define __ASM_SH_DELAY_H | |
3 | ||
4 | /* | |
5 | * Copyright (C) 1993 Linus Torvalds | |
6 | * | |
7 | * Delay routines calling functions in arch/sh/lib/delay.c | |
8 | */ | |
99432700 | 9 | |
1da177e4 LT |
10 | extern void __bad_udelay(void); |
11 | extern void __bad_ndelay(void); | |
12 | ||
13 | extern void __udelay(unsigned long usecs); | |
14 | extern void __ndelay(unsigned long nsecs); | |
15 | extern void __const_udelay(unsigned long usecs); | |
16 | extern void __delay(unsigned long loops); | |
17 | ||
99432700 | 18 | #ifdef CONFIG_SUPERH32 |
1da177e4 LT |
19 | #define udelay(n) (__builtin_constant_p(n) ? \ |
20 | ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \ | |
21 | __udelay(n)) | |
22 | ||
1da177e4 LT |
23 | #define ndelay(n) (__builtin_constant_p(n) ? \ |
24 | ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ | |
25 | __ndelay(n)) | |
99432700 PM |
26 | #else |
27 | extern void udelay(unsigned long usecs); | |
28 | extern void ndelay(unsigned long nsecs); | |
29 | #endif | |
1da177e4 LT |
30 | |
31 | #endif /* __ASM_SH_DELAY_H */ |