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/mcf547x_8x/slicetimer.c b/cpu/mcf547x_8x/slicetimer.c
index 67e8189..8dc010a 100644
--- a/cpu/mcf547x_8x/slicetimer.c
+++ b/cpu/mcf547x_8x/slicetimer.c
@@ -40,7 +40,7 @@
#endif
extern void dtimer_intr_setup(void);
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
volatile slt_t *timerp = (slt_t *) (CONFIG_SYS_UDELAY_BASE);
u32 now, freq;