1 /* $NetBSD: autoconf.c,v 1.10 2002/09/06 13:18:43 gehenna Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. 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 * from: Utah Hdr: autoconf.c 1.31 91/01/21 41 * 42 * @(#)autoconf.c 8.1 (Berkeley) 6/10/93 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/conf.h> 48 #include <sys/disklabel.h> 49 #include <sys/device.h> 50 51 #include <sh3/exception.h> 52 #include <machine/bus.h> 53 #include <machine/intr.h> 54 55 #include <machine/config_hook.h> 56 #include <machine/autoconf.h> 57 58 #include <hpcsh/dev/hd64461/hd64461var.h> 59 #include <hpcsh/dev/hd64465/hd64465var.h> 60 61 static struct device *booted_device; 62 static int booted_partition; 63 static char booted_device_name[16]; 64 static void get_device(char *name); 65 66 void 67 cpu_configure() 68 { 69 70 config_hook_init(); 71 softintr_init(); 72 hd6446x_intr_init(); 73 #ifdef SH3 74 if (CPU_IS_SH3) /* HD64461 (Jornada 690, HP620LX, HPW-50PA) */ 75 intc_intr_establish(SH7709_INTEVT2_IRQ4, IST_LEVEL, IPL_TTY, 76 (void *)1/* fake. see intc_intr(). */, 0); 77 #endif 78 #ifdef SH4 79 if (CPU_IS_SH4) /* HD64465 (HPW-650PA) */ 80 intc_intr_establish(SH_INTEVT_IRL11, IST_LEVEL, IPL_TTY, 81 (void *)1/* fake. see intc_intr(). */, 0); 82 #endif 83 84 /* Kick off autoconfiguration. */ 85 splhigh(); 86 if (config_rootfound("mainbus", "mainbus") == NULL) 87 panic("no mainbus found"); 88 89 /* Configuration is finished, turn on interrupts. */ 90 spl0(); 91 } 92 93 void 94 cpu_rootconf() 95 { 96 97 get_device(booted_device_name); 98 99 printf("boot device: %s\n", 100 booted_device ? booted_device->dv_xname : "<unknown>"); 101 102 setroot(booted_device, booted_partition); 103 } 104 105 void 106 makebootdev(const char *cp) 107 { 108 109 strncpy(booted_device_name, cp, 16); 110 } 111 112 static void 113 get_device(char *name) 114 { 115 int unit, part; 116 char devname[16], buf[32], *cp; 117 struct device *dv; 118 119 if (strncmp(name, "/dev/", 5) == 0) 120 name += 5; 121 122 if (devsw_name2blk(name, devname, sizeof(devname)) == -1) 123 return; 124 125 name += strlen(devname); 126 unit = part = 0; 127 128 cp = name; 129 while (*cp >= '0' && *cp <= '9') 130 unit = (unit * 10) + (*cp++ - '0'); 131 if (cp == name) 132 return; 133 134 if (*cp >= 'a' && *cp <= ('a' + MAXPARTITIONS)) 135 part = *cp - 'a'; 136 else if (*cp != '\0' && *cp != ' ') 137 return; 138 sprintf(buf, "%s%d", devname, unit); 139 for (dv = alldevs.tqh_first; dv != NULL; dv = dv->dv_list.tqe_next) { 140 if (strcmp(buf, dv->dv_xname) == 0) { 141 booted_device = dv; 142 booted_partition = part; 143 return; 144 } 145 } 146 } 147