freebsd-dev/sys/boot/powerpc/loader/start.c
Peter Grehan c9cbdf3393 Fix asm string newlines to keep gcc3.3 happy. Use register prefixes
to make the asm a bit more readable.
2003-08-05 11:30:18 +00:00

105 lines
2.9 KiB
C

/* $FreeBSD$ */
/* $NetBSD: Locore.c,v 1.7 2000/08/20 07:04:59 tsubai Exp $ */
/*
* 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.
*/
#include <stand.h>
#include "libofw.h"
void startup(void *, int, int (*)(void *), char *, int);
#ifdef XCOFF_GLUE
asm(" \n\
.text \n\
.globl _entry \n\
_entry: \n\
.long _start,0,0 \n\
");
#endif
__asm(" \n\
.data \n\
stack: \n\
.space 16388 \n\
\n\
.text \n\
.globl _start \n\
_start: \n\
li %r8,0 \n\
li %r9,0x100 \n\
mtctr %r9 \n\
1: \n\
dcbf %r0,%r8 \n\
icbi %r0,%r8 \n\
addi %r8,%r8,0x20 \n\
bdnz 1b \n\
sync \n\
isync \n\
\n\
lis %r1,stack@ha \n\
addi %r1,%r1,stack@l \n\
addi %r1,%r1,8192 \n\
\n\
mfmsr %r8 \n\
li %r0,0 \n\
mtmsr %r0 \n\
isync \n\
\n\
mtibatu 0,%r0 \n\
mtibatu 1,%r0 \n\
mtibatu 2,%r0 \n\
mtibatu 3,%r0 \n\
mtdbatu 0,%r0 \n\
mtdbatu 1,%r0 \n\
mtdbatu 2,%r0 \n\
mtdbatu 3,%r0 \n\
\n\
li %r9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */ \n\
mtibatl 0,%r9 \n\
mtdbatl 0,%r9 \n\
li %r9,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */ \n\
mtibatu 0,%r9 \n\
mtdbatu 0,%r9 \n\
isync \n\
\n\
mtmsr %r8 \n\
isync \n\
\n\
b startup \n\
");
void
startup(void *vpd, int res, int (*openfirm)(void *), char *arg, int argl)
{
main(openfirm);
}