patch-2.4.0-test10 linux/arch/i386/boot/setup.S

• Lines: 16
• Date: Mon Oct 30 14:44:29 2000
• Orig file: v2.4.0-test9/linux/arch/i386/boot/setup.S
• Orig date: Tue Jul 18 22:00:33 2000

diff -u --recursive --new-file v2.4.0-test9/linux/arch/i386/boot/setup.S linux/arch/i386/boot/setup.S
@@ -641,6 +641,15 @@
 	outb	%al, $0x60
 	call	empty_8042
 
+#
+#	You must preserve the other bits here. Otherwise embarrasing things
+#	like laptops powering off on boot happen. Corrected version by Kira
+#	Brown from Linux 2.2
+#
+	inb	$0x92, %al			# 
+	orb	$02, %al			# "fast A20" version
+	outb	%al, $0x92			# some chips have only this
+
 # wait until a20 really *is* enabled; it can take a fair amount of
 # time on certain systems; Toshiba Tecras are known to have this
 # problem.  The memory location used here (0x200) is the int 0x80