You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.0 KiB
88 lines
2.0 KiB
# --- SDE-COPYRIGHT-NOTE-BEGIN --- |
|
# This copyright note is auto-generated by ./scripts/Create-CopyPatch. |
|
# |
|
# Filename: package/.../grub/mactel.patch |
|
# Copyright (C) 2006 The T2 SDE Project |
|
# |
|
# More information can be found in the files COPYING and README. |
|
# |
|
# This patch file is dual-licensed. It is available under the license the |
|
# patched project is licensed under, as long as it is an OpenSource license |
|
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms |
|
# of the GNU General Public License as published by the Free Software |
|
# Foundation; either version 2 of the License, or (at your option) any later |
|
# version. |
|
# --- SDE-COPYRIGHT-NOTE-END --- |
|
|
|
Pasted together out of the OpenSolaris forum ,-) to allow booting |
|
on Macintosh Intel hardware, such as the MacBooks and the like. |
|
|
|
- Rene Rebe <rene@exactcode.de> |
|
|
|
--- grub-0.97/stage2/asm.S.vanilla 2006-05-31 19:43:15.858048750 +0200 |
|
+++ grub-0.97/stage2/asm.S 2006-05-31 19:47:11.584780750 +0200 |
|
@@ -1651,7 +1651,29 @@ |
|
jnz 3f |
|
ret |
|
|
|
-3: /* use keyboard controller */ |
|
+3: /* |
|
+ * try to switch gateA20 using PORT92, the "Fast A20 and Init" |
|
+ * register |
|
+ */ |
|
+ mov $0x92, %dx |
|
+ inb %dx, %al |
|
+ /* skip the port92 code if it's unimplemented (read returns 0xff) */ |
|
+ cmpb $0xff, %al |
|
+ jz 6f |
|
+ |
|
+ /* set or clear bit1, the ALT_A20_GATE bit */ |
|
+ movb 4(%esp), %ah |
|
+ testb %ah, %ah |
|
+ jz 4f |
|
+ orb $2, %al |
|
+ jmp 5f |
|
+4: and $0xfd, %al |
|
+ |
|
+ /* clear the INIT_NOW bit; don't accidently reset the machine */ |
|
+5: and $0xfe, %al |
|
+ outb %al, %dx |
|
+ |
|
+6: /* use keyboard controller */ |
|
pushl %eax |
|
|
|
call gloop1 |
|
@@ -1661,9 +1683,12 @@ |
|
|
|
gloopint1: |
|
inb $K_STATUS |
|
+ cmpb $0xff, %al |
|
+ jz gloopint1_done |
|
andb $K_IBUF_FUL, %al |
|
jnz gloopint1 |
|
|
|
+gloopint1_done: |
|
movb $KB_OUTPUT_MASK, %al |
|
cmpb $0, 0x8(%esp) |
|
jz gdoit |
|
@@ -1684,6 +1709,8 @@ |
|
|
|
gloop1: |
|
inb $K_STATUS |
|
+ cmpb $0xff, %al |
|
+ jz gloop2ret |
|
andb $K_IBUF_FUL, %al |
|
jnz gloop1 |
|
|
|
@@ -1991,6 +2018,11 @@ |
|
ENTRY(console_getkey) |
|
push %ebp |
|
|
|
+wait_for_key: |
|
+ call EXT_C(console_checkkey) |
|
+ incl %eax |
|
+ jz wait_for_key |
|
+ |
|
call EXT_C(prot_to_real) |
|
.code16 |
|
|
|
|