Generic udelay() with watchdog support
According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.
This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().
Signed-off-by: Ingo van Lil <inguin@gmx.de>
diff --git a/cpu/arm925t/timer.c b/cpu/arm925t/timer.c
index c16ef25..7dfe2b5 100644
--- a/cpu/arm925t/timer.c
+++ b/cpu/arm925t/timer.c
@@ -81,7 +81,7 @@
}
/* delay x useconds AND preserve advance timestamp value */
-void udelay (unsigned long usec)
+void __udelay (unsigned long usec)
{
int32_t tmo = usec * (TIMER_CLOCK / 1000) / 1000;
uint32_t now, last = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);