bootmain.c revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: bootmain.c,v 1.1.2.2 2012/04/17 00:07:03 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /*- 4 1.1.2.2 yamt * Copyright (c) 1993, 1994 Takumi Nakamura. 5 1.1.2.2 yamt * Copyright (c) 1999, 2000 Itoh Yasufumi. 6 1.1.2.2 yamt * Copyright (c) 2001 Minoura Makoto. 7 1.1.2.2 yamt * 8 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 9 1.1.2.2 yamt * modification, are permitted provided that the following conditions 10 1.1.2.2 yamt * are met: 11 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 12 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 13 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 15 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 16 1.1.2.2 yamt * 3. All advertising materials mentioning features or use of this software 17 1.1.2.2 yamt * must display the following acknowledgement: 18 1.1.2.2 yamt * This product includes software developed by Takumi Nakamura. 19 1.1.2.2 yamt * 4. Neither the name of the University nor the names of its contributors 20 1.1.2.2 yamt * may be used to endorse or promote products derived from this software 21 1.1.2.2 yamt * without specific prior written permission. 22 1.1.2.2 yamt * 23 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.1.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.1.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.1.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.1.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.1.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.1.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.1.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.1.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.1.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.1.2.2 yamt * SUCH DAMAGE. 34 1.1.2.2 yamt */ 35 1.1.2.2 yamt 36 1.1.2.2 yamt #include <sys/param.h> 37 1.1.2.2 yamt #include <sys/types.h> 38 1.1.2.2 yamt #include <machine/bootinfo.h> 39 1.1.2.2 yamt #include <lib/libsa/stand.h> 40 1.1.2.2 yamt #include <lib/libsa/loadfile.h> 41 1.1.2.2 yamt 42 1.1.2.2 yamt #include "libx68k.h" 43 1.1.2.2 yamt #include "iocs.h" 44 1.1.2.2 yamt #include "exec_image.h" 45 1.1.2.2 yamt 46 1.1.2.2 yamt #define EXSCSI_BDID ((void*) 0x00ea0001) 47 1.1.2.2 yamt 48 1.1.2.2 yamt /* boot_cd9660.S */ 49 1.1.2.2 yamt extern int badbaddr __P((volatile void *adr)); 50 1.1.2.2 yamt extern unsigned int ID; /* target SCSI ID */ 51 1.1.2.2 yamt extern unsigned int BOOT_INFO; /* result of IOCS(__BOOTINF) */ 52 1.1.2.2 yamt 53 1.1.2.2 yamt /* for debug */ 54 1.1.2.2 yamt unsigned int startregs[16]; 55 1.1.2.2 yamt 56 1.1.2.2 yamt static int get_scsi_host_adapter (char *); 57 1.1.2.2 yamt void bootmain (void) __attribute__ ((__noreturn__)); 58 1.1.2.2 yamt 59 1.1.2.2 yamt /* 60 1.1.2.2 yamt * Check the type of SCSI interface 61 1.1.2.2 yamt */ 62 1.1.2.2 yamt static int 63 1.1.2.2 yamt get_scsi_host_adapter(devstr) 64 1.1.2.2 yamt char *devstr; 65 1.1.2.2 yamt { 66 1.1.2.2 yamt char *bootrom; 67 1.1.2.2 yamt int ha; 68 1.1.2.2 yamt 69 1.1.2.2 yamt *(int *)devstr = '/' << 24 | 's' << 16 | 'p' << 8 | 'c'; 70 1.1.2.2 yamt *(int *)(devstr + 4) = '@' << 24 | '0' << 16 | '/' << 8 | 'c'; 71 1.1.2.2 yamt *(int *)(devstr + 8) = 'd' << 24 | '@' << 16 | '0' << 8 | ','; 72 1.1.2.2 yamt *(int *)(devstr + 12) = '0' << 24 | ':' << 16 | 'a' << 8 | '\0'; 73 1.1.2.2 yamt 74 1.1.2.2 yamt bootrom = (char *) (BOOT_INFO & 0x00ffffe0); 75 1.1.2.2 yamt /* 76 1.1.2.2 yamt * bootrom+0x24 "SCSIIN" ... Internal SCSI (spc@0) 77 1.1.2.2 yamt * "SCSIEX" ... External SCSI (spc@1 or mha@0) 78 1.1.2.2 yamt */ 79 1.1.2.2 yamt if (*(u_short *)(bootrom + 0x24 + 4) == 0x494e) { /* "IN" */ 80 1.1.2.2 yamt ha = (X68K_BOOT_SCSIIF_SPC << 4) | 0; 81 1.1.2.2 yamt } else if (badbaddr(EXSCSI_BDID)) { 82 1.1.2.2 yamt ha = (X68K_BOOT_SCSIIF_MHA << 4) | 0; 83 1.1.2.2 yamt *(int *)devstr = '/' << 24 | 'm' << 16 | 'h' << 8 | 'a'; 84 1.1.2.2 yamt } else { 85 1.1.2.2 yamt ha = (X68K_BOOT_SCSIIF_SPC << 4) | 1; 86 1.1.2.2 yamt devstr[5] = '1'; 87 1.1.2.2 yamt } 88 1.1.2.2 yamt 89 1.1.2.2 yamt return ha; 90 1.1.2.2 yamt } 91 1.1.2.2 yamt 92 1.1.2.2 yamt extern const char bootprog_name[], bootprog_rev[]; 93 1.1.2.2 yamt 94 1.1.2.2 yamt void 95 1.1.2.2 yamt bootmain(void) 96 1.1.2.2 yamt { 97 1.1.2.2 yamt int bootdev, ha, fd; 98 1.1.2.2 yamt char bootdevstr[16]; 99 1.1.2.2 yamt u_long marks[MARK_MAX]; 100 1.1.2.2 yamt 101 1.1.2.2 yamt #ifdef DEBUG 102 1.1.2.2 yamt printf("%s rev.%s\n", bootprog_name, bootprog_rev); 103 1.1.2.2 yamt #endif 104 1.1.2.2 yamt 105 1.1.2.2 yamt ha = get_scsi_host_adapter(bootdevstr); 106 1.1.2.2 yamt bootdevstr[10] = '0' + (ID & 7); 107 1.1.2.2 yamt bootdevstr[14] = 'a'; 108 1.1.2.2 yamt bootdev = X68K_MAKESCSIBOOTDEV(X68K_MAJOR_CD, ha >> 4, ha & 15, 109 1.1.2.2 yamt ID & 7, 0, 0); 110 1.1.2.2 yamt #ifdef DEBUG 111 1.1.2.2 yamt printf(" boot device: %s\n", bootdevstr); 112 1.1.2.2 yamt #endif 113 1.1.2.2 yamt 114 1.1.2.2 yamt marks[MARK_START] = BOOT_TEXTADDR; 115 1.1.2.2 yamt fd = loadfile("x68k/boot", marks, LOAD_TEXT|LOAD_DATA|LOAD_BSS); 116 1.1.2.2 yamt if (fd < 0) 117 1.1.2.2 yamt fd = loadfile("boot", marks, LOAD_TEXT|LOAD_DATA|LOAD_BSS); 118 1.1.2.2 yamt if (fd >= 0) { 119 1.1.2.2 yamt close(fd); 120 1.1.2.2 yamt exec_image(BOOT_TEXTADDR, /* image loaded at */ 121 1.1.2.2 yamt BOOT_TEXTADDR, /* image executed at */ 122 1.1.2.2 yamt BOOT_TEXTADDR, /* XXX: entry point */ 123 1.1.2.2 yamt 0, /* XXX: image size */ 124 1.1.2.2 yamt bootdev, 0); /* arguments */ 125 1.1.2.2 yamt } 126 1.1.2.2 yamt IOCS_B_PRINT("can't load the secondary bootstrap."); 127 1.1.2.2 yamt exit(0); 128 1.1.2.2 yamt } 129 1.1.2.2 yamt 130 1.1.2.2 yamt extern int xxboot(struct open_file *); 131 1.1.2.2 yamt int 132 1.1.2.2 yamt devopen(struct open_file *f, const char *fname, char **file) 133 1.1.2.2 yamt { 134 1.1.2.2 yamt return xxopen(f); 135 1.1.2.2 yamt } 136
Indexes created Wed Oct 22 00:09:40 GMT 2025