release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mn10300/unit-asb2305/include/unit/clock.h

   1 /* ASB2305-specific clocks
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11
  12 #ifndef _ASM_UNIT_CLOCK_H
  13 #define _ASM_UNIT_CLOCK_H
  14
  15 #ifndef __ASSEMBLY__
  16
  17 #ifdef CONFIG_MN10300_RTC
  18
  19 extern unsigned long mn10300_ioclk;     /* IOCLK (crystal speed) in HZ */
  20 extern unsigned long mn10300_iobclk;
  21 extern unsigned long mn10300_tsc_per_HZ;
  22
  23 #define MN10300_IOCLK           mn10300_ioclk
  24 /* If this processors has a another clock, uncomment the below. */
  25 /* #define MN10300_IOBCLK       mn10300_iobclk */
  26
  27 #else /* !CONFIG_MN10300_RTC */
  28
  29 #define MN10300_IOCLK           33333333UL
  30 /* #define MN10300_IOBCLK       66666666UL */
  31
  32 #endif /* !CONFIG_MN10300_RTC */
  33
  34 #define MN10300_JCCLK           MN10300_IOCLK
  35 #define MN10300_TSCCLK          MN10300_IOCLK
  36
  37 #ifdef CONFIG_MN10300_RTC
  38 #define MN10300_TSC_PER_HZ      mn10300_tsc_per_HZ
  39 #else /* !CONFIG_MN10300_RTC */
  40 #define MN10300_TSC_PER_HZ      (MN10300_TSCCLK/HZ)
  41 #endif /* !CONFIG_MN10300_RTC */
  42
  43 #endif /* !__ASSEMBLY__ */
  44
  45 #endif /* _ASM_UNIT_CLOCK_H */