include/asm-arm/arch-ns9xxx/clock.h

   1 /*
   2  * include/asm-arm/arch-ns9xxx/clock.h
   3  *
   4  * Copyright (C) 2007 by Digi International Inc.
   5  * All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  */
  11 #ifndef __ASM_ARCH_CLOCK_H
  12 #define __ASM_ARCH_CLOCK_H
  13
  14 static inline u32 ns9xxx_systemclock(void) __attribute__((const));
  15 static inline u32 ns9xxx_systemclock(void)
  16 {
  17         /*
  18          * This should be a multiple of HZ * TIMERCLOCKSELECT (in time.c)
  19          */
  20         return 353894400;
  21 }
  22
  23 static inline u32 ns9xxx_cpuclock(void) __attribute__((const));
  24 static inline u32 ns9xxx_cpuclock(void)
  25 {
  26         return ns9xxx_systemclock() / 2;
  27 }
  28
  29 static inline u32 ns9xxx_ahbclock(void) __attribute__((const));
  30 static inline u32 ns9xxx_ahbclock(void)
  31 {
  32         return ns9xxx_systemclock() / 4;
  33 }
  34
  35 static inline u32 ns9xxx_bbusclock(void) __attribute__((const));
  36 static inline u32 ns9xxx_bbusclock(void)
  37 {
  38         return ns9xxx_systemclock() / 8;
  39 }
  40
  41 #endif /* ifndef __ASM_ARCH_CLOCK_H */