freebsd-dev/sys/boot/powerpc/loader/start.c
Benno Rice 4cc1860f9b OpenFirmware/PowerPC loader, part 2.
As of this patchset, the loader builds (under NetBSD/macppc), boots, interacts
and talks to BOOTP/NFS servers.

(main.c was moved from boot/ofw/libofw to boot/ofw/common but has no revision
 history)

Reviewed by:	obrien
2000-11-10 06:39:58 +00:00

103 lines
2.5 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);
static int stack[8192/4 + 4];
#ifdef XCOFF_GLUE
asm("
.text
.globl _entry
_entry:
.long _start,0,0
");
#endif
asm("
.text
.globl _start
_start:
li 8,0
li 9,0x100
mtctr 9
1:
dcbf 0,8
icbi 0,8
addi 8,8,0x20
bdnz 1b
sync
isync
lis 1,stack@ha
addi 1,1,stack@l
addi 1,1,8192
mfmsr 8
li 0,0
mtmsr 0
isync
mtibatu 0,0
mtibatu 1,0
mtibatu 2,0
mtibatu 3,0
mtdbatu 0,0
mtdbatu 1,0
mtdbatu 2,0
mtdbatu 3,0
li 9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */
mtibatl 0,9
mtdbatl 0,9
li 9,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */
mtibatu 0,9
mtdbatu 0,9
isync
mtmsr 8
isync
b startup
");
void
startup(void *vpd, int res, int (*openfirm)(void *), char *arg, int argl)
{
main(openfirm);
}