sys/arch/news68k/stand/bootxx/bootxx.c

   1 /*      $NetBSD: bootxx.c,v 1.9 2008/01/11 09:26:27 tsutsui Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1999 Izumi Tsutsui.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 /*-
  28  * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. The name of the author may not be used to endorse or promote products
  39  *    derived from this software without specific prior written permission.
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  42  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  44  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  45  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  47  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  48  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  49  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  50  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  51  */
  52
  53 #include <lib/libkern/libkern.h>
  54 #include <lib/libsa/stand.h>
  55 #include <machine/romcall.h>
  56
  57 #include <sys/bootblock.h>
  58
  59 void bootxx(uint32_t, uint32_t, uint32_t, uint32_t);
  60
  61 struct shared_bbinfo bbinfo = {
  62         { NEWS68K_BBINFO_MAGIC },       /* bbi_magic[] */
  63         0,                              /* bbi_block_size */
  64         SHARED_BBINFO_MAXBLOCKS,        /* bbi_block_count */
  65         { 0 },                          /* bbi_block_table[] */
  66 };
  67
  68 #ifndef DEFAULT_ENTRY_POINT
  69 #define DEFAULT_ENTRY_POINT     0x003e0000
  70 #endif
  71 void (*entry_point)(uint32_t, uint32_t, uint32_t, uint32_t) =
  72     (void *)DEFAULT_ENTRY_POINT;
  73
  74 #ifdef BOOTXX_DEBUG
  75 # define DPRINTF printf
  76 #else
  77 # define DPRINTF while (0) printf
  78 #endif
  79
  80 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" };
  81
  82 void
  83 bootxx(uint32_t d4, uint32_t d5, uint32_t d6, uint32_t d7)
  84 {
  85         int fd, blk, bs;
  86         int ctlr, unit, part, type;
  87         int i;
  88         int bootdev = d6;
  89         char *addr;
  90         char devname[32];
  91
  92         printf("NetBSD/news68k Primary Boot\n");
  93
  94         DPRINTF("\n");
  95         DPRINTF("d4 %x\n", d4);
  96         DPRINTF("d5 %x (%s)\n", d5, (char *)d5);
  97         DPRINTF("d6 %x\n", d6);
  98         DPRINTF("d7 %x\n", d7);
  99
 100         DPRINTF("block_size  = %d\n", bbinfo.bbi_block_size);
 101         DPRINTF("block_count = %d\n", bbinfo.bbi_block_count);
 102         DPRINTF("entry_point = %p\n", entry_point);
 103
 104         /* sd(ctlr, lun, part, bus?, host) */
 105
 106         ctlr = BOOTDEV_CTLR(bootdev);
 107         unit = BOOTDEV_UNIT(bootdev);
 108         part = BOOTDEV_PART(bootdev);
 109         type = BOOTDEV_TYPE(bootdev);
 110
 111         if (devs[type] == NULL) {
 112                 printf("unknown bootdev (0x%x)\n", bootdev);
 113                 return;
 114         }
 115
 116         sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part);
 117
 118         fd = rom_open(devname, 0);
 119         if (fd == -1) {
 120                 printf("cannot open %s\n", devname);
 121                 return;
 122         }
 123
 124         addr = (char *)entry_point;
 125         bs = bbinfo.bbi_block_size;
 126         DPRINTF("reading block:");
 127         for (i = 0; i < bbinfo.bbi_block_count; i++) {
 128                 blk = bbinfo.bbi_block_table[i];
 129
 130                 DPRINTF(" %d", blk);
 131
 132                 rom_lseek(fd, blk * 512, 0);
 133                 rom_read(fd, addr, bs);
 134                 addr += bs;
 135         }
 136         DPRINTF(" done\n");
 137         rom_close(fd);
 138
 139         (*entry_point)(d4, d5, d6, d7);
 140         DPRINTF("bootxx returned?\n");
 141 }