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Blackfin: reset watchdog in udelay()

All arches apparently should reset the watchdog in their udelay loop as
noted on the mailing list recently:

  > A comment in flash_status_check() suggests that udelay() is
  > expected to reset the watchdog, but I can't find any architecture
  > where it does.

  If this is missing in other architectures, it should be fixed at the
  root cause, i. e. in udelay() or in the respective support routines.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger 15 years ago
parent
commit
1f003cf473
1 changed files with 3 additions and 0 deletions
  1. 3 0
      cpu/blackfin/interrupts.c

+ 3 - 0
cpu/blackfin/interrupts.c

@@ -20,6 +20,7 @@
 
 #include <common.h>
 #include <config.h>
+#include <watchdog.h>
 #include <asm/blackfin.h>
 #include "cpu.h"
 
@@ -70,6 +71,8 @@ void udelay(unsigned long usec)
 	cclk = (CONFIG_CCLK_HZ);
 
 	while (usec > 1) {
+		WATCHDOG_RESET();
+
 		/*
 		 * how many clock ticks to delay?
 		 *  - request(in useconds) * clock_ticks(Hz) / useconds/second