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Remove 4 clause BSD code in favor of similar startup code from the linux

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kernel.

svn path=/trunk/; revision=21156
This commit is contained in:
Art Yerkes 2006-02-19 09:51:18 +00:00
parent a8e2165ac9
commit 16e3d0db53
1 changed files with 53 additions and 50 deletions
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103
reactos/boot/freeldr/bootsect/ofwboot.s
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@ -1,41 +1,11 @@
.section .text
.globl setup_bats
_start:
.long 0xe00000 + 12
.long 0
.long 0
/*
* LIFTED FROM arch/macppc/stand/ofwboot/Locore.c
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
_begin:
sync
isync
@ -48,24 +18,8 @@ _begin:
li %r0,0
mtmsr %r0
isync
mtibatu 0,%r0
mtibatu 1,%r0
mtibatu 2,%r0
mtibatu 3,%r0
mtdbatu 0,%r0
mtdbatu 1,%r0
mtdbatu 2,%r0
mtdbatu 3,%r0
li %r9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */
mtibatl 0,%r9
mtdbatl 0,%r9
li %r10,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */
mtibatu 0,%r10
mtdbatu 0,%r10
isync
bl setup_bats
li %r8,0x3030
mtmsr %r8
@ -108,7 +62,55 @@ _begin:
addi %r3,%r3,call_ofw - _start
b call_freeldr
/*
* lifted from ppc/boot/openfirmware/misc.S
* Copyright (C) Paul Mackerras 1997.
*
* This program is free software; you can redistribute it and/or
* modify it 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.
*/
/*
* Use the BAT2 & 3 registers to map the 1st 16MB of RAM to
* the address given as the 1st argument.
*/
setup_bats:
mfpvr 5
rlwinm 5,5,16,16,31 /* r3 = 1 for 601, 4 for 604 */
cmpwi 0,5,1
li 0,0
bne 4f
mtibatl 3,0 /* invalidate BAT first */
ori 3,3,4 /* set up BAT registers for 601 */
li 4,0x7f
mtibatu 2,3
mtibatl 2,4
oris 3,3,0x80
oris 4,4,0x80
mtibatu 3,3
mtibatl 3,4
b 5f
4: mtdbatu 3,0 /* invalidate BATs first */
mtibatu 3,0
ori 3,3,0xff /* set up BAT registers for 604 */
li 4,2
mtdbatl 2,4
mtdbatu 2,3
mtibatl 2,4
mtibatu 2,3
oris 3,3,0x80
oris 4,4,0x80
mtdbatl 3,4
mtdbatu 3,3
mtibatl 3,4
mtibatu 3,3
5: sync
isync
blr
.align 4
call_freeldr:
/* Get the address of the functions list --
@ -1240,3 +1242,4 @@ ofw_functions:
.org 0x2000
stack:
.space 0x4000