Mercurial > vordog

changeset 13:e4e6727f530f tip

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To work with bootstrap code's configuration on the timer
author Thinker K.F. Li <thinker@branda.to>
date Wed, 09 Jul 2008 13:05:43 +0800
parents 6bfd60bcd7b8
children
files vordog.c
diffstat 1 files changed, 5 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- 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)