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authorIngo van Lil <inguin@gmx.de>2009-11-24 14:09:21 +0100
committerWolfgang Denk <wd@denx.de>2009-12-05 01:08:53 +0100
commit3eb90bad651fab39cffba750ec4421a9c01d60e7 (patch)
tree63b21148a041603db252203a422dc465e862e016 /cpu/arm_cortexa8
parent1c409bc7101a24ecd47a13a4e851845d66dc23ce (diff)
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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>
Diffstat (limited to 'cpu/arm_cortexa8')
-rw-r--r--cpu/arm_cortexa8/omap3/timer.c2
-rw-r--r--cpu/arm_cortexa8/s5pc1xx/timer.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/cpu/arm_cortexa8/omap3/timer.c b/cpu/arm_cortexa8/omap3/timer.c
index 12a16b3..401bfe6 100644
--- a/cpu/arm_cortexa8/omap3/timer.c
+++ b/cpu/arm_cortexa8/omap3/timer.c
@@ -82,7 +82,7 @@ void set_timer(ulong t)
}
/* delay x useconds */
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
long tmo = usec * (TIMER_CLOCK / 1000) / 1000;
unsigned long now, last = readl(&timer_base->tcrr);
diff --git a/cpu/arm_cortexa8/s5pc1xx/timer.c b/cpu/arm_cortexa8/s5pc1xx/timer.c
index cdba5d9..c5df5c5 100644
--- a/cpu/arm_cortexa8/s5pc1xx/timer.c
+++ b/cpu/arm_cortexa8/s5pc1xx/timer.c
@@ -115,7 +115,7 @@ void set_timer(unsigned long t)
}
/* delay x useconds */
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
unsigned long tmo, tmp;