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authorIngo Molnar <mingo@elte.hu>2008-07-10 18:55:17 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-10 18:55:17 +0200
commit520b9617ab4aea764ddfc5d58cae21c16b3318e1 (patch)
tree1612249d11d455cfd6a0d691f5564673ae179c5f /arch/x86/boot/a20.c
parentf57e91682d141ea50d8c6d42cdc251b6256a3755 (diff)
parentf87f38ec5a5157aa39f44f6018dc58ea62f8e0e2 (diff)
Merge branch 'x86/core' into x86/generalize-visws
Diffstat (limited to 'arch/x86/boot/a20.c')
-rw-r--r--arch/x86/boot/a20.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index e01aafd03bd..4063d630def 100644
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -1,7 +1,7 @@
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright 2007 rPath, Inc. - All Rights Reserved
+ * Copyright 2007-2008 rPath, Inc. - All Rights Reserved
*
* This file is part of the Linux kernel, and is made available under
* the terms of the GNU General Public License version 2.
@@ -95,6 +95,9 @@ static void enable_a20_kbc(void)
outb(0xdf, 0x60); /* A20 on */
empty_8042();
+
+ outb(0xff, 0x64); /* Null command, but UHCI wants it */
+ empty_8042();
}
static void enable_a20_fast(void)