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-rw-r--r--include/asm-ppc/delay.h66
1 files changed, 0 insertions, 66 deletions
diff --git a/include/asm-ppc/delay.h b/include/asm-ppc/delay.h
deleted file mode 100644
index badde6845af..00000000000
--- a/include/asm-ppc/delay.h
+++ /dev/null
@@ -1,66 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_DELAY_H
-#define _PPC_DELAY_H
-
-#include <asm/param.h>
-
-/*
- * Copyright 1996, Paul Mackerras.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-extern unsigned long loops_per_jiffy;
-
-extern void __delay(unsigned int loops);
-
-/*
- * Note that 19 * 226 == 4294 ==~ 2^32 / 10^6, so
- * loops = (4294 * usecs * loops_per_jiffy * HZ) / 2^32.
- *
- * The mulhwu instruction gives us loops = (a * b) / 2^32.
- * We choose a = usecs * 19 * HZ and b = loops_per_jiffy * 226
- * because this lets us support a wide range of HZ and
- * loops_per_jiffy values without either a or b overflowing 2^32.
- * Thus we need usecs * HZ <= (2^32 - 1) / 19 = 226050910 and
- * loops_per_jiffy <= (2^32 - 1) / 226 = 19004280
- * (which corresponds to ~3800 bogomips at HZ = 100).
- * -- paulus
- */
-#define __MAX_UDELAY (226050910UL/HZ) /* maximum udelay argument */
-#define __MAX_NDELAY (4294967295UL/HZ) /* maximum ndelay argument */
-
-extern __inline__ void __udelay(unsigned int x)
-{
- unsigned int loops;
-
- __asm__("mulhwu %0,%1,%2" : "=r" (loops) :
- "r" (x), "r" (loops_per_jiffy * 226));
- __delay(loops);
-}
-
-extern __inline__ void __ndelay(unsigned int x)
-{
- unsigned int loops;
-
- __asm__("mulhwu %0,%1,%2" : "=r" (loops) :
- "r" (x), "r" (loops_per_jiffy * 5));
- __delay(loops);
-}
-
-extern void __bad_udelay(void); /* deliberately undefined */
-extern void __bad_ndelay(void); /* deliberately undefined */
-
-#define udelay(n) (__builtin_constant_p(n)? \
- ((n) > __MAX_UDELAY? __bad_udelay(): __udelay((n) * (19 * HZ))) : \
- __udelay((n) * (19 * HZ)))
-
-#define ndelay(n) (__builtin_constant_p(n)? \
- ((n) > __MAX_NDELAY? __bad_ndelay(): __ndelay((n) * HZ)) : \
- __ndelay((n) * HZ))
-
-#endif /* defined(_PPC_DELAY_H) */
-#endif /* __KERNEL__ */