diff options
Diffstat (limited to 'include/asm-sh/delay.h')
| -rw-r--r-- | include/asm-sh/delay.h | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/include/asm-sh/delay.h b/include/asm-sh/delay.h index 9eb03f65d..222561a3e 100644 --- a/include/asm-sh/delay.h +++ b/include/asm-sh/delay.h @@ -2,26 +2,26 @@ #define __ASM_SH_DELAY_H /* - * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 1999 Kaz Kojima */ extern __inline__ void __delay(unsigned long loops) { - unsigned long __dummy; __asm__ __volatile__( - "1:\t" - "dt %0\n\t" - "bf 1b" - :"=r" (__dummy) - :"0" (loops)); + "tst %0,%0\n\t" + "1:\t" + "bf/s 1b\n\t" + " dt %0" + : "=r" (loops) + : "0" (loops)); } extern __inline__ void __udelay(unsigned long usecs, unsigned long lps) { usecs *= 0x000010c6; /* 2**32 / 1000000 */ - __asm__("mul.l %0,%2\n\t" - "sts macl,%0" - : "=&r" (usecs) + __asm__("dmulu.l %0,%2\n\t" + "sts mach,%0" + : "=r" (usecs) : "0" (usecs), "r" (lps) : "macl", "mach"); __delay(usecs); @@ -36,9 +36,4 @@ extern __inline__ void __udelay(unsigned long usecs, unsigned long lps) #define udelay(usecs) __udelay((usecs),__udelay_val) -extern __inline__ unsigned long muldiv(unsigned long a, unsigned long b, unsigned long c) -{ - return (a*b)/c; -} - #endif /* __ASM_SH_DELAY_H */ |