1 #ifndef __ASM_SH_DELAY_H
2 #define __ASM_SH_DELAY_H
5 * Copyright (C) 1993 Linus Torvalds
7 * Delay routines calling functions in arch/sh/lib/delay.c
10 extern void __bad_udelay(void);
11 extern void __bad_ndelay(void);
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);
18 #ifdef CONFIG_SUPERH32
19 #define udelay(n) (__builtin_constant_p(n) ? \
20 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
23 #define ndelay(n) (__builtin_constant_p(n) ? \
24 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
27 extern void udelay(unsigned long usecs);
28 extern void ndelay(unsigned long nsecs);
31 #endif /* __ASM_SH_DELAY_H */