sys/arch/sbmips/stand/common/boot.c

   1 /* $NetBSD: boot.c,v 1.4 2009/01/12 07:30:45 tsutsui 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