lib/time.c

   1 /*
   2  * (C) Copyright 2000-2009
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <watchdog.h>
  10
  11 #ifndef CONFIG_WD_PERIOD
  12 # define CONFIG_WD_PERIOD       (10 * 1000 * 1000)      /* 10 seconds default*/
  13 #endif
  14
  15 /* ------------------------------------------------------------------------- */
  16
  17 void udelay(unsigned long usec)
  18 {
  19         ulong kv;
  20
  21         do {
  22                 WATCHDOG_RESET();
  23                 kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec;
  24                 __udelay (kv);
  25                 usec -= kv;
  26         } while(usec);
  27 }
  28
  29 void mdelay(unsigned long msec)
  30 {
  31         while (msec--)
  32                 udelay(1000);
  33 }