autoconf.c revision 1.53
1 /* $NetBSD: autoconf.c,v 1.53 2014/01/20 15:05:13 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)autoconf.c 8.4 (Berkeley) 10/1/93 41 */ 42 43 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 44 45 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.53 2014/01/20 15:05:13 tsutsui Exp $"); 46 47 #include "pci.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/buf.h> 52 #include <sys/disklabel.h> 53 #include <sys/reboot.h> 54 #include <sys/device.h> 55 #include <sys/conf.h> 56 #include <dev/cons.h> 57 58 #include <dev/pci/pcivar.h> 59 60 #include <machine/autoconf.h> 61 #include <machine/alpha.h> 62 #include <machine/cpu.h> 63 #include <machine/prom.h> 64 #include <machine/cpuconf.h> 65 #include <machine/intr.h> 66 67 struct bootdev_data *bootdev_data; 68 69 void parse_prom_bootdev(void); 70 static inline int atoi(const char *); 71 72 /* 73 * cpu_configure: 74 * called at boot time, configure all devices on system 75 */ 76 void 77 cpu_configure(void) 78 { 79 80 parse_prom_bootdev(); 81 82 /* 83 * Disable interrupts during autoconfiguration. splhigh() won't 84 * work, because it simply _raises_ the IPL, so if machine checks 85 * are disabled, they'll stay disabled. Machine checks are needed 86 * during autoconfig. 87 */ 88 (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 89 if (config_rootfound("mainbus", NULL) == NULL) 90 panic("no mainbus found"); 91 (void)spl0(); 92 93 /* 94 * Note that bootstrapping is finished, and set the HWRPB up 95 * to do restarts. 96 */ 97 hwrpb_restart_setup(); 98 } 99 100 void 101 cpu_rootconf(void) 102 { 103 104 if (booted_device == NULL) 105 printf("WARNING: can't figure what device matches \"%s\"\n", 106 bootinfo.booted_dev); 107 rootconf(); 108 } 109 110 void 111 parse_prom_bootdev(void) 112 { 113 static char hacked_boot_dev[128]; 114 static struct bootdev_data bd; 115 char *cp, *scp, *boot_fields[8]; 116 int i, done; 117 118 booted_device = NULL; 119 booted_partition = 0; 120 bootdev_data = NULL; 121 122 memcpy(hacked_boot_dev, bootinfo.booted_dev, 123 min(sizeof bootinfo.booted_dev, sizeof hacked_boot_dev)); 124 #if 0 125 printf("parse_prom_bootdev: boot dev = \"%s\"\n", hacked_boot_dev); 126 #endif 127 128 i = 0; 129 scp = cp = hacked_boot_dev; 130 for (done = 0; !done; cp++) { 131 if (*cp != ' ' && *cp != '\0') 132 continue; 133 if (*cp == '\0') 134 done = 1; 135 136 *cp = '\0'; 137 boot_fields[i++] = scp; 138 scp = cp + 1; 139 if (i == 8) 140 done = 1; 141 } 142 if (i != 8) 143 return; /* doesn't look like anything we know! */ 144 145 #if 0 146 printf("i = %d, done = %d\n", i, done); 147 for (i--; i >= 0; i--) 148 printf("%d = %s\n", i, boot_fields[i]); 149 #endif 150 151 bd.protocol = boot_fields[0]; 152 bd.bus = atoi(boot_fields[1]); 153 bd.slot = atoi(boot_fields[2]); 154 bd.channel = atoi(boot_fields[3]); 155 bd.remote_address = boot_fields[4]; 156 bd.unit = atoi(boot_fields[5]); 157 bd.boot_dev_type = atoi(boot_fields[6]); 158 bd.ctrl_dev_type = boot_fields[7]; 159 160 #if 0 161 printf("parsed: proto = %s, bus = %d, slot = %d, channel = %d,\n", 162 bd.protocol, bd.bus, bd.slot, bd.channel); 163 printf("\tremote = %s, unit = %d, dev_type = %d, ctrl_type = %s\n", 164 bd.remote_address, bd.unit, bd.boot_dev_type, bd.ctrl_dev_type); 165 #endif 166 167 bootdev_data = &bd; 168 } 169 170 static inline int 171 atoi(const char *s) 172 { 173 return (int)strtoll(s, NULL, 10); 174 } 175 176 void 177 device_register(device_t dev, void *aux) 178 { 179 #if NPCI > 0 180 device_t parent = device_parent(dev); 181 182 if (parent != NULL && device_is_a(parent, "pci")) 183 device_pci_register(dev, aux); 184 #endif 185 186 if (bootdev_data == NULL) { 187 /* 188 * There is no hope. 189 */ 190 return; 191 } 192 if (platform.device_register) 193 (*platform.device_register)(dev, aux); 194 } 195
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