sys/arch/hp700/stand/cdboot/cdboot.c

   1 /*      $NetBSD: cdboot.c,v 1.2 2009/05/08 09:33:58 skrll Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1982, 1986, 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)boot.c      8.1 (Berkeley) 6/10/93
  32  */
  33
  34 /*
  35  * Copyright (c) 1998-2004 Michael Shalayeff
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  48  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  49  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  50  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  51  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  52  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  53  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  55  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  56  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  57  * THE POSSIBILITY OF SUCH DAMAGE.
  58  *
  59  */
  60
  61 #include <sys/param.h>
  62 #include <sys/reboot.h>
  63 #include <sys/boot_flag.h>
  64
  65 #include <arch/hp700/stand/common/libsa.h>
  66 #include <lib/libsa/loadfile.h>
  67
  68 #include <machine/pdc.h>
  69 #include <machine/vmparam.h>
  70
  71 #include <arch/hp700/stand/common/dev_hppa.h>
  72
  73 /*
  74  * Boot program... bits in `howto' determine whether boot stops to
  75  * ask for system name.  Boot device is derived from ROM provided
  76  * information.
  77  */
  78
  79 void boot(dev_t boot_dev);
  80
  81 typedef void (*startfuncp)(int, int, int, int, int, int, void *)
  82     __attribute__ ((noreturn));
  83
  84 void
  85 boot(dev_t boot_dev)
  86 {
  87         u_long marks[MARK_MAX];
  88         u_long loadaddr = 0;
  89         char path[128];
  90         int fd;
  91
  92         machdep();
  93 #ifdef  DEBUGBUG
  94         debug = 1;
  95 #endif
  96         devboot(boot_dev, path);
  97
  98         strncpy(path + strlen(path), ":/netbsd", 9);
  99         printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
 100         printf(">> Booting %s: ", path);
 101
 102 #define round_to_size(x) \
 103         (((x) + sizeof(u_long) - 1) & ~(sizeof(u_long) - 1))
 104
 105 #define BOOTARG_APIVER 2
 106
 107         marks[MARK_START] = loadaddr;
 108         if ((fd = loadfile(path, marks, LOAD_KERNEL)) == -1)
 109                 return;
 110
 111         marks[MARK_END] = round_to_size(marks[MARK_END] - loadaddr);
 112         printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n",
 113             marks[MARK_ENTRY], marks[MARK_NSYM],
 114             marks[MARK_SYM], marks[MARK_END]);
 115
 116 #ifdef EXEC_DEBUG
 117         if (debug) {
 118                 printf("ep=0x%x [", marks[MARK_ENTRY]);
 119                 for (i = 0; i < 10240; i++) {
 120                         if (!(i % 8)) {
 121                                 printf("\b\n%p:", &((u_int *)marks[MARK_ENTRY])[i]);
 122                                 if (getchar() != ' ')
 123                                         break;
 124                         }
 125                         printf("%x,", ((int *)marks[MARK_ENTRY])[i]);
 126                 }
 127                 printf("\b\b ]\n");
 128         }
 129 #endif
 130
 131         fcacheall();
 132
 133         __asm("mtctl %r0, %cr17");
 134         __asm("mtctl %r0, %cr17");
 135         /* stack and the gung is ok at this point, so, no need for asm setup */
 136         (*(startfuncp)(marks[MARK_ENTRY])) ((int)pdc, 0, boot_dev, marks[MARK_END],
 137                                        BOOTARG_APIVER, 0, NULL);
 138         /* not reached */
 139 }