1 /* $NetBSD: boot.c,v 1.7 2016/06/11 06:41:12 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)boot.c 8.1 (Berkeley) 6/10/93
35 */
36
37 #include <lib/libsa/stand.h>
38 #include <lib/libkern/libkern.h>
39 #include <lib/libsa/loadfile.h>
40
41 #include <sys/param.h>
42 #include <sys/exec.h>
43 #include <sys/exec_ecoff.h>
44
45 #include "stand/common/common.h"
46 #include "stand/common/cfe_api.h"
47
48 #include <machine/autoconf.h>
49
50 #if !defined(UNIFIED_BOOTBLOCK) && !defined(SECONDARY_BOOTBLOCK)
51 #error not UNIFIED_BOOTBLOCK and not SECONDARY_BOOTBLOCK
52 #endif
53
54 char boot_file[128];
55 char boot_flags[128];
56 extern int debug;
57
58 struct bootinfo_v1 bootinfo;
59
60 paddr_t ffp_save, ptbr_save;
61
62 int debug;
63
64 char *kernelnames[] = {
65 "netbsd", "netbsd.gz",
66 "netbsd.bak", "netbsd.bak.gz",
67 "netbsd.old", "netbsd.old.gz",
68 "onetbsd", "onetbsd.gz",
69 "netbsd.mips", "netbsd.mips.gz",
70 NULL
71 };
72
73 int
74 #if defined(UNIFIED_BOOTBLOCK)
main(long fwhandle,long evector,long fwentry,long fwseal)75 main(long fwhandle,long evector,long fwentry,long fwseal)
76 #else /* defined(SECONDARY_BOOTBLOCK) */
77 main(long fwhandle,long fd,long fwentry)
78 #endif
79 {
80 char *name, **namep;
81 u_long marks[MARK_MAX];
82 u_int32_t entry;
83 int win;
84
85 /* Init prom callback vector. */
86 cfe_init(fwhandle,fwentry);
87
88 /* Init the console device */
89 init_console();
90
91 /* print a banner */
92 printf("\n");
93 printf("NetBSD/sbmips " NETBSD_VERS " " BOOT_TYPE_NAME " Bootstrap, Revision %s\n",
94 bootprog_rev);
95 printf("\n");
96
97 /* set up the booted device descriptor */
98 #if defined(UNIFIED_BOOTBLOCK)
99 if (!booted_dev_open()) {
100 printf("Boot device (%s) open failed.\n",
101 booted_dev_name[0] ? booted_dev_name : "unknown");
102 goto fail;
103 }
104 #else /* defined(SECONDARY_BOOTBLOCK) */
105 booted_dev_setfd(fd);
106 #endif
107
108 printf("\n");
109
110 boot_file[0] = 0;
111 cfe_getenv("KERNEL_FILE",boot_file,sizeof(boot_file));
112
113 boot_flags[0] = 0;
114 cfe_getenv("BOOT_FLAGS",boot_flags,sizeof(boot_flags));
115
116 if (boot_file[0] != 0)
117 (void)printf("Boot file: %s\n", boot_file);
118 (void)printf("Boot flags: %s\n", boot_flags);
119
120 if (strchr(boot_flags, 'i') || strchr(boot_flags, 'I')) {
121 printf("Boot file: ");
122 kgets(boot_file, sizeof(boot_file));
123 }
124
125 memset(marks, 0, sizeof marks);
126 if (boot_file[0] != '\0') {
127 name = boot_file;
128 win = loadfile(name, marks, LOAD_KERNEL) == 0;
129 } else {
130 name = NULL; /* XXX gcc -Wuninitialized */
131 for (namep = kernelnames, win = 0; *namep != NULL && !win;
132 namep++)
133 win = loadfile(name = *namep, marks, LOAD_KERNEL) == 0;
134 }
135
136 entry = marks[MARK_ENTRY];
137 booted_dev_close();
138 printf("\n");
139 if (!win)
140 goto fail;
141
142 (void)printf("Entering %s at 0x%lx...\n", name, (long)entry);
143
144 cfe_flushcache(0);
145
146 memset(&bootinfo, 0,sizeof(bootinfo));
147 bootinfo.version = BOOTINFO_VERSION;
148 bootinfo.reserved = 0;
149 bootinfo.ssym = marks[MARK_SYM];
150 bootinfo.esym = marks[MARK_END];
151 strncpy(bootinfo.boot_flags,boot_flags,sizeof(bootinfo.boot_flags));
152 strncpy(bootinfo.booted_kernel,name,sizeof(bootinfo.booted_kernel));
153 bootinfo.fwhandle = fwhandle;
154 bootinfo.fwentry = fwentry;
155
156 (*(void (*)(long,long,long,long))entry)(fwhandle,
157 BOOTINFO_MAGIC,
158 (long)&bootinfo,
159 fwentry);
160
161 (void)printf("KERNEL RETURNED!\n");
162
163 fail:
164 (void)printf("Boot failed! Halting...\n");
165 halt();
166 return 1;
167 }
168
169
170
171