/* $NetBSD: autoconf.c,v 1.21 2008/06/11 02:14:29 kiyohara 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 */ /* * Setup the system to run on the current machine. * * Configure() is called at boot time and initializes the vba * device tables and the memory controller monitoring. Available * devices are determined (from possibilities mentioned in ioconf.c), * and the drivers are initialized. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.21 2008/06/11 02:14:29 kiyohara Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/buf.h> #include <sys/disklabel.h> #include <sys/conf.h> #include <sys/reboot.h> #include <sys/device.h> #include <sys/malloc.h> #include <sys/queue.h> #include "pci.h" #if NPCI > 0 #include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> #endif #include <machine/pte.h> #include <machine/intr.h> void genppc_cpu_configure(void); static void findroot(void); /* * Determine i/o configuration for a machine. */ void cpu_configure() { if (config_rootfound("mainbus", NULL) == NULL) panic("configure: mainbus not configured"); genppc_cpu_configure(); } void cpu_rootconf() { findroot(); aprint_normal("boot device: %s\n", booted_device ? booted_device->dv_xname : "<unknown>"); setroot(booted_device, booted_partition); } u_long bootdev = 0; /* should be dev_t, but not until 32 bits */ /* * Attempt to find the device from which we were booted. * If we can do so, and not instructed not to do so, * change rootdev to correspond to the load device. */ void findroot(void) { int unit, part; device_t dv; const char *name; 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; } } void device_register(struct device *dev, void *aux) { #if NPCI > 0 if (device_is_a(dev, "genfb") && device_is_a(device_parent(dev), "pci")) { prop_dictionary_t dict = device_properties(dev); struct pci_attach_args *pa = aux; pcireg_t bar0; uint32_t fbaddr; bar0 = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START); fbaddr = PCI_MAPREG_MEM_ADDR(bar0); prop_dictionary_set_bool(dict, "is_console", 1); prop_dictionary_set_uint32(dict, "width", 640); prop_dictionary_set_uint32(dict, "height", 480); prop_dictionary_set_uint32(dict, "depth", 8); prop_dictionary_set_uint32(dict, "address", fbaddr); } if (device_is_a(dev, "siop") && device_is_a(device_parent(dev), "pci")) { prop_dictionary_t dict = device_properties(dev); struct pci_attach_args *pa = aux; int bus, device; pci_decompose_tag(pa->pa_pc, pa->pa_tag, &bus, &device, NULL); if (bus == 0 && device == 12) /* Internal SCSI uses PCI clock as SCSI clock */ prop_dictionary_set_bool(dict, "use_pciclock", 1); } #endif }