arch/arm/include/asm/hardware/icst525.h

   1 /*
   2  *  arch/arm/include/asm/hardware/icst525.h
   3  *
   4  *  Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  Support functions for calculating clocks/divisors for the ICST525
  11  *  clock generators.  See http://www.icst.com/ for more information
  12  *  on these devices.
  13  */
  14 #ifndef ASMARM_HARDWARE_ICST525_H
  15 #define ASMARM_HARDWARE_ICST525_H
  16
  17 struct icst525_params {
  18         unsigned long   ref;
  19         unsigned long   vco_max;        /* inclusive */
  20         unsigned short  vd_min;         /* inclusive */
  21         unsigned short  vd_max;         /* inclusive */
  22         unsigned char   rd_min;         /* inclusive */
  23         unsigned char   rd_max;         /* inclusive */
  24 };
  25
  26 struct icst525_vco {
  27         unsigned short  v;
  28         unsigned char   r;
  29         unsigned char   s;
  30 };
  31
  32 unsigned long icst525_khz(const struct icst525_params *p, struct icst525_vco vco);
  33 struct icst525_vco icst525_khz_to_vco(const struct icst525_params *p, unsigned long freq);
  34 struct icst525_vco icst525_ps_to_vco(const struct icst525_params *p, unsigned long period);
  35
  36 #endif