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   1 /*
   2  *  linux/include/asm-arm/hardware/icst307.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 ICS307
  11  *  clock generators.  See http://www.icst.com/ for more information
  12  *  on these devices.
  13  *
  14  *  This file is similar to the icst525.h file
  15  */
  16 #ifndef ASMARM_HARDWARE_ICST307_H
  17 #define ASMARM_HARDWARE_ICST307_H
  18
  19 struct icst307_params {
  20         unsigned long   ref;
  21         unsigned long   vco_max;        /* inclusive */
  22         unsigned short  vd_min;         /* inclusive */
  23         unsigned short  vd_max;         /* inclusive */
  24         unsigned char   rd_min;         /* inclusive */
  25         unsigned char   rd_max;         /* inclusive */
  26 };
  27
  28 struct icst307_vco {
  29         unsigned short  v;
  30         unsigned char   r;
  31         unsigned char   s;
  32 };
  33
  34 unsigned long icst307_khz(const struct icst307_params *p, struct icst307_vco vco);
  35 struct icst307_vco icst307_khz_to_vco(const struct icst307_params *p, unsigned long freq);
  36 struct icst307_vco icst307_ps_to_vco(const struct icst307_params *p, unsigned long period);
  37
  38 #endif