/* $NetBSD: autoconf.c,v 1.80 2012/10/13 06:51:22 tsutsui Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department and Ralph Campbell. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah Hdr: autoconf.c 1.31 91/01/21 * * @(#)autoconf.c 8.1 (Berkeley) 6/10/93 */ #include __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.80 2012/10/13 06:51:22 tsutsui Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include "opt_dec_3100.h" #include "opt_dec_5100.h" struct intrhand intrtab[MAX_DEV_NCOOKIES]; static device_t booted_controller; static int booted_slot, booted_unit; static const char *booted_protocol; /* * Configure all devices on system */ void cpu_configure(void) { /* Kick off autoconfiguration. */ (void)splhigh(); /* Interrupt initialization. */ intr_init(); if (config_rootfound("mainbus", NULL) == NULL) panic("no mainbus found"); /* Reset any bus errors due to probing nonexistent devices. */ (*platform.bus_reset)(); /* Configuration is finished, turn on interrupts. */ spl0(); /* enable all source forcing SOFT_INTs cleared */ } /* * Look at the string 'cp' and decode the boot device. Boot names * can be something like 'rz(0,0,0)vmunix' or '5/rz0/vmunix'. * * 2100/3100/5100 allows abbrivation; * dev(controller[,uni-number[,partition-number]]])[filename] */ void makebootdev(char *cp) { booted_device = NULL; booted_slot = booted_unit = booted_partition = 0; booted_protocol = NULL; #if defined(DEC_3100) || defined(DEC_5100) if (cp[0] == 'r' && cp[1] == 'z' && cp[2] == '(') { cp += 3; if (*cp >= '0' && *cp <= '9') booted_slot = *cp++ - '0'; if (*cp == ',') cp += 1; if (*cp >= '0' && *cp <= '9') booted_unit = *cp++ - '0'; if (*cp == ',') cp += 1; if (*cp >= '0' && *cp <= '9') booted_partition = *cp - '0'; booted_protocol = "SCSI"; return; } if (strncmp(cp, "tftp(", 5) == 0) { booted_protocol = "BOOTP"; return; } if (strncmp(cp, "mop(", 4) == 0) { booted_protocol = "MOP"; return; } #endif if (cp[0] >= '0' && cp[0] <= '9' && cp[1] == '/') { booted_slot = cp[0] - '0'; if (cp[2] == 'r' && cp[3] == 'z' && cp[4] >= '0' && cp[4] <= '9') { booted_protocol = "SCSI"; booted_unit = cp[4] - '0'; } else if (strncmp(cp+2, "tftp", 4) == 0) booted_protocol = "BOOTP"; else if (strncmp(cp+2, "mop", 3) == 0) booted_protocol = "MOP"; } } void cpu_rootconf(void) { printf("boot device: %s\n", booted_device ? device_xname(booted_device) : ""); rootconf(); } /* * Try to determine the boot device. */ void device_register(device_t dev, void *aux) { static int found, initted, scsiboot, netboot; static device_t ioasicdev; device_t parent = device_parent(dev); if (found) return; if (!initted) { scsiboot = strcmp(booted_protocol, "SCSI") == 0; netboot = (strcmp(booted_protocol, "BOOTP") == 0) || (strcmp(booted_protocol, "MOP") == 0); initted = 1; } /* * Check if IOASIC was the boot slot. */ if (device_is_a(dev, "ioasic")) { struct tc_attach_args *ta = aux; if (ta->ta_slot == booted_slot) ioasicdev = dev; return; } /* * Check for ASC controller on either IOASIC or TC option card. */ if (scsiboot && device_is_a(dev, "asc")) { struct tc_attach_args *ta = aux; /* * If boot was from IOASIC controller, ioasicdev will * be the ASC parent. * If boot was from a TC option card, the TC slot number * of the ASC will match the boot slot. */ if (parent == ioasicdev || ta->ta_slot == booted_slot) { booted_controller = dev; return; } } /* * If an SII device is configured, it's currently the only * possible SCSI boot device. */ if (scsiboot && device_is_a(dev, "sii")) { booted_controller = dev; return; } /* * If we found the boot controller, if check disk/tape/cdrom device * on that controller matches. */ if (booted_controller && (device_is_a(dev, "sd") || device_is_a(dev, "st") || device_is_a(dev, "cd"))) { struct scsipibus_attach_args *sa = aux; if (device_parent(parent) != booted_controller) return; if (booted_unit != sa->sa_periph->periph_target) return; booted_device = dev; found = 1; return; } /* * Check if netboot device. */ if (netboot) { struct tc_attach_args *ta = aux; if (( #if defined(DEC_3100) || defined(DEC_5100) /* Only one Ethernet interface on 2100/3100/5100. */ systype == DS_PMAX || systype == DS_MIPSMATE || #endif /* Only one Ethernet interface at IOASIC. */ parent == ioasicdev) && device_is_a(dev, "le")) { booted_device = dev; found = 1; return; } /* allow any TC network adapter */ if (device_class(dev) == DV_IFNET && device_is_a(parent, "tc") && ta->ta_slot == booted_slot) { booted_device = dev; found = 1; return; } } }