1384740dcSRalf Baechle /* 2384740dcSRalf Baechle * This file is subject to the terms and conditions of the GNU General Public 3384740dcSRalf Baechle * License. See the file "COPYING" in the main directory of this archive 4384740dcSRalf Baechle * for more details. 5384740dcSRalf Baechle * 6384740dcSRalf Baechle * Copyright (C) 1994 by Waldorf Electronics 7384740dcSRalf Baechle * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle 8384740dcSRalf Baechle * Copyright (C) 1999, 2000 Silicon Graphics, Inc. 9384740dcSRalf Baechle * Copyright (C) 2007 Maciej W. Rozycki 10384740dcSRalf Baechle */ 11384740dcSRalf Baechle #ifndef _ASM_DELAY_H 12384740dcSRalf Baechle #define _ASM_DELAY_H 13384740dcSRalf Baechle 14e3bf887dSRalf Baechle #include <linux/param.h> 15e3bf887dSRalf Baechle 165210edcdSDavid Daney extern void __delay(unsigned long loops); 175210edcdSDavid Daney extern void __ndelay(unsigned long ns); 185210edcdSDavid Daney extern void __udelay(unsigned long us); 19384740dcSRalf Baechle 2039027ff0SRalf Baechle #define ndelay(ns) __ndelay(ns) 215636919bSRalf Baechle #define udelay(us) __udelay(us) 22384740dcSRalf Baechle 23384740dcSRalf Baechle /* make sure "usecs *= ..." in udelay do not overflow. */ 24384740dcSRalf Baechle #if HZ >= 1000 25384740dcSRalf Baechle #define MAX_UDELAY_MS 1 26384740dcSRalf Baechle #elif HZ <= 200 27384740dcSRalf Baechle #define MAX_UDELAY_MS 5 28384740dcSRalf Baechle #else 29384740dcSRalf Baechle #define MAX_UDELAY_MS (1000 / HZ) 30384740dcSRalf Baechle #endif 31384740dcSRalf Baechle 32384740dcSRalf Baechle #endif /* _ASM_DELAY_H */ 33