1 /* $NetBSD: boot.c,v 1.5 2009/03/18 16:00:14 cegger 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) 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("(%s, %s)\n", bootprog_maker, bootprog_date); 96 printf("\n"); 97 98 /* set up the booted device descriptor */ 99 #if defined(UNIFIED_BOOTBLOCK) 100 if (!booted_dev_open()) { 101 printf("Boot device (%s) open failed.\n", 102 booted_dev_name[0] ? booted_dev_name : "unknown"); 103 goto fail; 104 } 105 #else /* defined(SECONDARY_BOOTBLOCK) */ 106 booted_dev_setfd(fd); 107 #endif 108 109 printf("\n"); 110 111 boot_file[0] = 0; 112 cfe_getenv("KERNEL_FILE",boot_file,sizeof(boot_file)); 113 114 boot_flags[0] = 0; 115 cfe_getenv("BOOT_FLAGS",boot_flags,sizeof(boot_flags)); 116 117 if (boot_file[0] != 0) 118 (void)printf("Boot file: %s\n", boot_file); 119 (void)printf("Boot flags: %s\n", boot_flags); 120 121 if (strchr(boot_flags, 'i') || strchr(boot_flags, 'I')) { 122 printf("Boot file: "); 123 gets(boot_file); 124 } 125 126 memset(marks, 0, sizeof marks); 127 if (boot_file[0] != '\0') { 128 name = boot_file; 129 win = loadfile(name, marks, LOAD_KERNEL) == 0; 130 } else { 131 name = NULL; /* XXX gcc -Wuninitialized */ 132 for (namep = kernelnames, win = 0; *namep != NULL && !win; 133 namep++) 134 win = loadfile(name = *namep, marks, LOAD_KERNEL) == 0; 135 } 136 137 entry = marks[MARK_ENTRY]; 138 booted_dev_close(); 139 printf("\n"); 140 if (!win) 141 goto fail; 142 143 (void)printf("Entering %s at 0x%lx...\n", name, (long)entry); 144 145 cfe_flushcache(0); 146 147 memset(&bootinfo, 0,sizeof(bootinfo)); 148 bootinfo.version = BOOTINFO_VERSION; 149 bootinfo.reserved = 0; 150 bootinfo.ssym = marks[MARK_SYM]; 151 bootinfo.esym = marks[MARK_END]; 152 strncpy(bootinfo.boot_flags,boot_flags,sizeof(bootinfo.boot_flags)); 153 strncpy(bootinfo.booted_kernel,name,sizeof(bootinfo.booted_kernel)); 154 bootinfo.fwhandle = fwhandle; 155 bootinfo.fwentry = fwentry; 156 157 (*(void (*)(long,long,long,long))entry)(fwhandle, 158 BOOTINFO_MAGIC, 159 (long)&bootinfo, 160 fwentry); 161 162 (void)printf("KERNEL RETURNED!\n"); 163 164 fail: 165 (void)printf("Boot failed! Halting...\n"); 166 halt(); 167 return 1; 168 } 169 170 171 172