/* $NetBSD: autoconf.c,v 1.18 2008/04/09 01:56:19 nisimura Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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. * * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.18 2008/04/09 01:56:19 nisimura Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/conf.h> #include <sys/device.h> #include <dev/pci/pcivar.h> #include <machine/bootinfo.h> static struct btinfo_rootdevice *bi_rdev; static struct btinfo_bootpath *bi_path; #include <dev/cons.h> #include <machine/pio.h> /* * Determine i/o configuration for a machine. */ void cpu_configure() { bi_rdev = lookup_bootinfo(BTINFO_ROOTDEVICE); bi_path = lookup_bootinfo(BTINFO_BOOTPATH); if (config_rootfound("mainbus", NULL) == NULL) panic("configure: mainbus not configured"); genppc_cpu_configure(); } char *booted_kernel; /* should be a genuine filename */ void cpu_rootconf() { if (bi_path != NULL) booted_kernel = bi_path->bootpath; aprint_normal("boot device: %s\n", booted_device ? booted_device->dv_xname : "<unknown>"); setroot(booted_device, booted_partition); } void device_register(struct device *dev, void *aux) { if (bi_rdev == NULL) return; /* no clue to determine */ if (dev->dv_class == DV_IFNET && device_is_a(dev, bi_rdev->devname)) { struct pci_attach_args *pa = aux; if (bi_rdev->cookie == pa->pa_tag) booted_device = dev; } if (dev->dv_class == DV_DISK && device_is_a(dev, bi_rdev->devname)) { booted_device = dev; booted_partition = 0; } } #if 0 void findroot(void) { int unit, part; device_t dv; const char *name; #if 0 printf("howto %x bootdev %x ", boothowto, bootdev); #endif if ((bootdev & B_MAGICMASK) != (u_long)B_DEVMAGIC) return; name = devsw_blk2name((bootdev >> B_TYPESHIFT) & B_TYPEMASK); if (name == NULL) return; part = (bootdev >> B_PARTITIONSHIFT) & B_PARTITIONMASK; unit = (bootdev >> B_UNITSHIFT) & B_UNITMASK; if ((dv = device_find_by_driver_unit(name, unit)) != NULL) { booted_device = dv; booted_partition = part; } } #endif