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      1 /*
      2  * linux/include/asm-arm/arch-omap/timex.h
      3  *
      4  * Copyright (C) 2000 RidgeRun, Inc.
      5  * Author:  Greg Lonnon <glonnon (at) ridgerun.com>
      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 as published by the
      9  * Free Software Foundation; either version 2 of the License, or (at your
     10  * option) any later version.
     11  *
     12  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
     13  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     14  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
     15  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     16  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     17  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
     18  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     19  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     20  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     21  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     22  *
     23  * You should have received a copy of the  GNU General Public License along
     24  * with this program; if not, write  to the Free Software Foundation, Inc.,
     25  * 675 Mass Ave, Cambridge, MA 02139, USA.
     26  */
     27 
     28 #if !defined(__ASM_ARCH_OMAP_TIMEX_H)
     29 #define __ASM_ARCH_OMAP_TIMEX_H
     30 
     31 /*
     32  * OMAP 32KHz timer updates time one jiffie at a time from a secondary timer,
     33  * and that's why the CLOCK_TICK_RATE is not 32768.
     34  */
     35 #ifdef CONFIG_OMAP_32K_TIMER
     36 #define CLOCK_TICK_RATE		(CONFIG_OMAP_32K_TIMER_HZ)
     37 #else
     38 #define CLOCK_TICK_RATE		(HZ * 100000UL)
     39 #endif
     40 
     41 #endif /* __ASM_ARCH_OMAP_TIMEX_H */
     42