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/arm926ejs/at91/timer.c b/cpu/arm926ejs/at91/timer.c
index 811bb3c..7352b5c 100644
--- a/cpu/arm926ejs/at91/timer.c
+++ b/cpu/arm926ejs/at91/timer.c
@@ -105,7 +105,7 @@
return tick_to_time(get_ticks());
}
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
unsigned long long tmp;
ulong tmo;
diff --git a/cpu/arm926ejs/davinci/timer.c b/cpu/arm926ejs/davinci/timer.c
index 7c2c208..9da7443 100644
--- a/cpu/arm926ejs/davinci/timer.c
+++ b/cpu/arm926ejs/davinci/timer.c
@@ -112,7 +112,7 @@
timestamp = t;
}
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
ulong tmo;
ulong endtime;
diff --git a/cpu/arm926ejs/kirkwood/timer.c b/cpu/arm926ejs/kirkwood/timer.c
index 817ff42..2ec6a93 100644
--- a/cpu/arm926ejs/kirkwood/timer.c
+++ b/cpu/arm926ejs/kirkwood/timer.c
@@ -125,7 +125,7 @@
timestamp = t;
}
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
uint current;
ulong delayticks;
diff --git a/cpu/arm926ejs/mx27/timer.c b/cpu/arm926ejs/mx27/timer.c
index 9011058..8f1d47b 100644
--- a/cpu/arm926ejs/mx27/timer.c
+++ b/cpu/arm926ejs/mx27/timer.c
@@ -177,7 +177,7 @@
}
/* delay x useconds AND preserve advance timstamp value */
-void udelay (unsigned long usec)
+void __udelay (unsigned long usec)
{
unsigned long long tmp;
ulong tmo;
diff --git a/cpu/arm926ejs/nomadik/timer.c b/cpu/arm926ejs/nomadik/timer.c
index 16067c9..047b9e3 100644
--- a/cpu/arm926ejs/nomadik/timer.c
+++ b/cpu/arm926ejs/nomadik/timer.c
@@ -59,7 +59,7 @@
}
/* Delay x useconds */
-void udelay(unsigned long usec)
+void __udelay(unsigned long usec)
{
ulong ini, end;
diff --git a/cpu/arm926ejs/omap/timer.c b/cpu/arm926ejs/omap/timer.c
index 392b158..2ac38c4 100644
--- a/cpu/arm926ejs/omap/timer.c
+++ b/cpu/arm926ejs/omap/timer.c
@@ -80,7 +80,7 @@
}
/* delay x useconds AND perserve advance timstamp value */
-void udelay (unsigned long usec)
+void __udelay (unsigned long usec)
{
ulong tmo, tmp;
diff --git a/cpu/arm926ejs/versatile/timer.c b/cpu/arm926ejs/versatile/timer.c
index 50c1335..563db36 100755
--- a/cpu/arm926ejs/versatile/timer.c
+++ b/cpu/arm926ejs/versatile/timer.c
@@ -109,7 +109,7 @@
}
/* delay x useconds AND perserve advance timstamp value */
-void udelay (unsigned long usec)
+void __udelay (unsigned long usec)
{
ulong tmo, tmp;