1 /* $NetBSD: bootxx.c,v 1.4 2002/05/20 14:05:22 lukem 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 34 #include <sys/bootblock.h> 35 36 struct shared_bbinfo bbinfo = { 37 { NEWS68K_BBINFO_MAGIC }, /* bbi_magic[] */ 38 0, /* bbi_block_size */ 39 SHARED_BBINFO_MAXBLOCKS, /* bbi_block_count */ 40 { 0 }, /* bbi_block_table[] */ 41 }; 42 43 #ifndef DEFAULT_ENTRY_POINT 44 #define DEFAULT_ENTRY_POINT 0x003e0000 45 #endif 46 void (*entry_point)(u_int32_t, u_int32_t, u_int32_t, u_int32_t) = 47 (void *)DEFAULT_ENTRY_POINT; 48 49 #ifdef BOOTXX_DEBUG 50 # define DPRINTF(x) printf x 51 #else 52 # define DPRINTF(x) 53 #endif 54 55 char *devs[] = { "hd", "fh", "fd", NULL, NULL, "rd", "st" }; 56 57 void 58 bootxx(d4, d5, d6, d7) 59 int d4, d5, d6, d7; 60 { 61 int fd, blk, bs; 62 int ctlr, unit, part, type; 63 int i; 64 int bootdev = d6; 65 char *addr; 66 char devname[32]; 67 68 printf("NetBSD/news68k Primary Boot\n"); 69 70 DPRINTF(("\n")); 71 DPRINTF(("d4 %x\n", d4)); 72 DPRINTF(("d5 %x (%s)\n", d5, (char *)d5)); 73 DPRINTF(("d6 %x\n", d6)); 74 DPRINTF(("d7 %x\n", d7)); 75 76 DPRINTF(("block_size = %d\n", bbinfo.bbi_block_size)); 77 DPRINTF(("block_count = %d\n", bbinfo.bbi_block_count)); 78 DPRINTF(("entry_point = %p\n", entry_point)); 79 80 /* sd(ctlr, lun, part, bus?, host) */ 81 82 ctlr = BOOTDEV_CTLR(bootdev); 83 unit = BOOTDEV_UNIT(bootdev); 84 part = BOOTDEV_PART(bootdev); 85 type = BOOTDEV_TYPE(bootdev); 86 87 if (devs[type] == NULL) { 88 printf("unknown bootdev (0x%x)\n", bootdev); 89 return; 90 } 91 92 sprintf(devname, "%s(%d,%d,%d)", devs[type], ctlr, unit, part); 93 94 fd = rom_open(devname, 0); 95 if (fd == -1) { 96 printf("cannot open %s\n", devname); 97 return; 98 } 99 100 addr = (char *)entry_point; 101 bs = bbinfo.bbi_block_size; 102 DPRINTF(("reading block:")); 103 for (i = 0; i < bbinfo.bbi_block_count; i++) { 104 blk = bbinfo.bbi_block_table[i]; 105 106 DPRINTF((" %d", blk)); 107 108 rom_lseek(fd, blk * 512, 0); 109 rom_read(fd, addr, bs); 110 addr += bs; 111 } 112 DPRINTF((" done\n")); 113 rom_close(fd); 114 115 (*entry_point)(d4, d5, d6, d7); 116 DPRINTF(("bootxx returned?\n")); 117 } 118