bootxx.c revision 1.2
1 /* $NetBSD: bootxx.c,v 1.2 2002/04/27 10:19:58 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (C) 1999 Izumi Tsutsui. All rights reserved. 5 * Copyright (C) 1999 Tsubai Masanari. 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <lib/libkern/libkern.h> 31 #include <lib/libsa/stand.h> 32 #include <machine/romcall.h> 33 #include <machine/bbinfo.h> 34 35 struct bbinfo bbinfo = { 36 { BBINFO_MAGIC }, /* bbi_magic[] */ 37 0, /* bbi_block_size */ 38 MAXBLOCKNUM, /* bbi_block_count */ 39 { 0 }, /* bbi_block_table[] */ 40 0x3e0000 /* bbi_entry_point */ 41 }; 42 43 #ifdef BOOTXX_DEBUG 44 # define DPRINTF printf 45 #else 46 # define DPRINTF while (0) printf 47 #endif 48 49 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" }; 50 51 void 52 bootxx(d4, d5, d6, d7) 53 int d4, d5, d6, d7; 54 { 55 int fd, blk, bs; 56 int ctlr, unit, part, type; 57 int i; 58 int bootdev = d6; 59 char *addr; 60 void (*entry_point)(u_int32_t, u_int32_t, u_int32_t, u_int32_t); 61 char devname[32]; 62 63 printf("NetBSD/news68k Primary Boot\n"); 64 65 DPRINTF("\n"); 66 DPRINTF("d4 %x\n", d4); 67 DPRINTF("d5 %x (%s)\n", d5, (char *)d5); 68 DPRINTF("d6 %x\n", d6); 69 DPRINTF("d7 %x\n", d7); 70 71 DPRINTF("block_size = %d\n", bbinfo.bbi_block_size); 72 DPRINTF("block_count = %d\n", bbinfo.bbi_block_count); 73 DPRINTF("entry_point = %x\n", bbinfo.bbi_entry_point); 74 75 /* sd(ctlr, lun, part, bus?, host) */ 76 77 ctlr = BOOTDEV_CTLR(bootdev); 78 unit = BOOTDEV_UNIT(bootdev); 79 part = BOOTDEV_PART(bootdev); 80 type = BOOTDEV_TYPE(bootdev); 81 82 if (devs[type] == NULL) { 83 printf("unknown bootdev (0x%x)\n", bootdev); 84 return; 85 } 86 87 sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part); 88 89 fd = rom_open(devname, 0); 90 if (fd == -1) { 91 printf("cannot open %s\n", devname); 92 return; 93 } 94 95 entry_point = (void *)bbinfo.bbi_entry_point; 96 addr = (char *)entry_point; 97 bs = bbinfo.bbi_block_size; 98 DPRINTF("reading block:"); 99 for (i = 0; i < bbinfo.bbi_block_count; i++) { 100 blk = bbinfo.bbi_block_table[i]; 101 102 DPRINTF(" %d", blk); 103 104 rom_lseek(fd, blk * 512, 0); 105 rom_read(fd, addr, bs); 106 addr += bs; 107 } 108 DPRINTF(" done\n"); 109 rom_close(fd); 110 111 (*entry_point)(d4, d5, d6, d7); 112 DPRINTF("bootxx returned?\n"); 113 } 114
Indexes created Mon Sep 29 21:09:56 GMT 2025