ed45ba76c7
all the options have been processed that they are supported my the specific system. Add i386 MD options (console, password, speed and timeout) (Approved by christos and lukem)
129 lines
3.9 KiB
C
129 lines
3.9 KiB
C
/* $NetBSD: sparc.c,v 1.8 2003/04/15 14:22:14 dsl Exp $ */
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/*-
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* Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg and Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(__lint)
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__RCSID("$NetBSD: sparc.c,v 1.8 2003/04/15 14:22:14 dsl Exp $");
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#endif /* !__lint */
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/param.h>
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#include <assert.h>
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "installboot.h"
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static struct bbinfo_params bbparams = {
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SPARC_BBINFO_MAGIC,
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SPARC_BOOT_BLOCK_OFFSET,
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SPARC_BOOT_BLOCK_BLOCKSIZE,
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SPARC_BOOT_BLOCK_MAX_SIZE,
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32, /* leave room for a.out header */
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BBINFO_BIG_ENDIAN,
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};
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static int sparc_clearheader(ib_params *, struct bbinfo_params *, uint8_t *);
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static int sparc_setheader(ib_params *, struct bbinfo_params *, uint8_t *);
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int
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sparc_clearboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_clearboot(params, &bbparams, sparc_clearheader));
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}
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int
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sparc_setboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_setboot(params, &bbparams, sparc_setheader));
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}
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static int
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sparc_clearheader(ib_params *params, struct bbinfo_params *bb_params,
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uint8_t *bb)
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{
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assert(params != NULL);
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assert(bb_params != NULL);
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assert(bb != NULL);
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memset(bb, 0, bb_params->headeroffset);
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return (1);
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}
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static int
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sparc_setheader(ib_params *params, struct bbinfo_params *bb_params, uint8_t *bb)
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{
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assert(params != NULL);
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assert(bb_params != NULL);
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assert(bb != NULL);
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/*
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* sun4c/sun4m PROMs require an a.out(5) format header.
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* Old-style sun4 PROMs do not expect a header at all.
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* To deal with this, we construct a header that is also executable
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* code containing a forward branch that gets us past the 32-byte
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* header where the actual code begins. In assembly:
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* .word MAGIC ! a NOP
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* ba,a start !
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* .skip 24 ! pad
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* start:
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*/
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#define SUN_MAGIC 0x01030107
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#define SUN4_BASTART 0x30800007 /* i.e.: ba,a `start' */
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*((uint32_t *)bb) = htobe32(SUN_MAGIC);
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*((uint32_t *)bb + 1) = htobe32(SUN4_BASTART);
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return (1);
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}
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