linux-stable-rt/arch/mn10300/unit-asb2305/include/unit/clock.h

/* ASB2305-specific clocks
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#ifndef _ASM_UNIT_CLOCK_H
#define _ASM_UNIT_CLOCK_H

#ifndef __ASSEMBLY__

#ifdef CONFIG_MN10300_RTC

extern unsigned long mn10300_ioclk;	/* IOCLK (crystal speed) in HZ */
extern unsigned long mn10300_iobclk;
extern unsigned long mn10300_tsc_per_HZ;

#define MN10300_IOCLK		mn10300_ioclk
/* If this processors has a another clock, uncomment the below. */
/* #define MN10300_IOBCLK	mn10300_iobclk */

#else /* !CONFIG_MN10300_RTC */

#define MN10300_IOCLK		33333333UL
/* #define MN10300_IOBCLK	66666666UL */

#endif /* !CONFIG_MN10300_RTC */

#define MN10300_JCCLK		MN10300_IOCLK
#define MN10300_TSCCLK		MN10300_IOCLK

#ifdef CONFIG_MN10300_RTC
#define MN10300_TSC_PER_HZ	mn10300_tsc_per_HZ
#else /* !CONFIG_MN10300_RTC */
#define MN10300_TSC_PER_HZ	(MN10300_TSCCLK/HZ)
#endif /* !CONFIG_MN10300_RTC */

#endif /* !__ASSEMBLY__ */

#endif /* _ASM_UNIT_CLOCK_H */