delay.h
#ifndef __ASM_GENERIC_DELAY_H
#define __ASM_GENERIC_DELAY_H
extern void __udelay(unsigned long usecs);
extern void __delay(unsigned long loops);
#define udelay(n) __udelay(n)
#endif /* __ASM_GENERIC_DELAY_H */
#ifndef __ASM_GENERIC_DELAY_H
#define __ASM_GENERIC_DELAY_H
extern void __udelay(unsigned long usecs);
extern void __delay(unsigned long loops);
#define udelay(n) __udelay(n)
#endif /* __ASM_GENERIC_DELAY_H */