# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1215579943 -28800
# Node ID e4e6727f530f36f616dcc29902a30934fc3fa6f0
# Parent  6bfd60bcd7b819dbce2801bb03dce5a1d35e59ef
To work with bootstrap code's configuration on the timer

diff -r 6bfd60bcd7b8 -r e4e6727f530f vordog.c
--- a/vordog.c	Wed Jul 09 04:40:09 2008 +0800
+++ b/vordog.c	Wed Jul 09 13:05:43 2008 +0800
@@ -262,8 +262,12 @@
 static int vordog_probe(device_t dev) {
     int b;
 
+    disable_timer();		/* To work with bootstrap code
+				 * that may configure the timer. */
+
+    outb(VD_INITVAL, 0xaa);
     b = inb(VD_INITVAL);
-    if(b != 0)
+    if(b != 0xaa)
 	return EINVAL;
     b = inb(VD_CTR);
     if(b != 0)