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  • /*
     * (C) Copyright 2000-2009
     * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    #include <common.h>
    #include <watchdog.h>
    
    
    #if CONFIG_SYS_HZ != 1000
    #warning "CONFIG_SYS_HZ must be 1000 and should not be defined by platforms"
    #endif
    
    
    #ifndef CONFIG_WD_PERIOD
    # define CONFIG_WD_PERIOD	(10 * 1000 * 1000)	/* 10 seconds default*/
    #endif
    
    /* ------------------------------------------------------------------------- */
    
    void udelay(unsigned long usec)
    {
    	ulong kv;
    
    	do {
    		WATCHDOG_RESET();
    		kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec;
    		__udelay (kv);
    		usec -= kv;
    	} while(usec);
    }
    
    
    void mdelay(unsigned long msec)
    {
    	while (msec--)
    		udelay(1000);
    }