/* * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Marius Groeger <mgroeger@sysgo.de> * * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Alex Zuepke <azu@sysgo.de> * * (C) Copyright 2002 * Gary Jennejohn, DENX Software Engineering, <gj@denx.de> * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */#include <common.h>#if defined (CONFIG_IMX)#include <arm920t.h>#include <asm/arch/imx-regs.h>int interrupt_init (void){	int i;	/* setup GP Timer 1 */	TCTL1 = TCTL_SWR;	for ( i=0; i<100; i++) TCTL1 = 0; /* We have no udelay by now */	TPRER1 = get_PERCLK1() / 1000000; /* 1 MHz */	TCTL1 |= TCTL_FRR | (1<<1); /* Freerun Mode, PERCLK1 input */	reset_timer_masked();	return (0);}/* * timer without interrupts */void reset_timer (void){	reset_timer_masked ();}ulong get_timer (ulong base){	return get_timer_masked ();}void set_timer (ulong t){	/* nop */}void reset_timer_masked (void){	TCTL1 &= ~TCTL_TEN;	TCTL1 |= TCTL_TEN; /* Enable timer */}ulong get_timer_masked (void){	return TCN1;}void udelay_masked (unsigned long usec){	ulong endtime = get_timer_masked() + usec;	signed long diff;	do {		ulong now = get_timer_masked ();		diff = endtime - now;	} while (diff >= 0);}void udelay (unsigned long usec){	udelay_masked(usec);}/* * This function is derived from PowerPC code (read timebase as long long). * On ARM it just returns the timer value. */unsigned long long get_ticks(void){	return get_timer(0);}/* * This function is derived from PowerPC code (timebase clock frequency). * On ARM it returns the number of timer ticks per second. */ulong get_tbclk (void){	ulong tbclk;	tbclk = CFG_HZ;	return tbclk;}/* * Reset the cpu by setting up the watchdog timer and let him time out */void reset_cpu (ulong ignored){	/* Disable watchdog and set Time-Out field to 0 */	WCR = 0x00000000;	/* Write Service Sequence */	WSR = 0x00005555;	WSR = 0x0000AAAA;	/* Enable watchdog */	WCR = 0x00000001;	while (1);	/*NOTREACHED*/}#endif /* defined (CONFIG_IMX) */