autoconf.c revision 99034
1/*- 2 * Copyright (c) 1998 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#ifndef lint 28static const char rcsid[] = 29 "$FreeBSD: head/sys/powerpc/powerpc/autoconf.c 99034 2002-06-29 09:33:18Z benno $"; 30#endif 31 32#include "opt_bootp.h" 33#include "opt_nfs.h" 34#include "opt_nfsroot.h" 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/conf.h> 39#include <sys/disklabel.h> 40#include <sys/diskslice.h> /* for BASE_SLICE, MAX_SLICES */ 41#include <sys/reboot.h> 42#include <sys/kernel.h> 43#include <sys/mount.h> 44#include <sys/sysctl.h> 45#include <sys/bus.h> 46#include <sys/devicestat.h> 47#include <sys/cons.h> 48 49#include <machine/md_var.h> 50#include <machine/bootinfo.h> 51#include <machine/ipl.h> 52#include <machine/trap.h> 53 54#include <cam/cam.h> 55#include <cam/cam_ccb.h> 56#include <cam/cam_sim.h> 57#include <cam/cam_periph.h> 58#include <cam/cam_xpt_sim.h> 59#include <cam/cam_debug.h> 60 61static void configure(void *); 62SYSINIT(configure, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL) 63#ifdef NFS_ROOT 64SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, cpu_rootconf, NULL) 65 66#ifndef BOOTP_NFSROOT 67#error "NFS_ROOT support not implemented for the non-BOOTP_NFSROOT case" 68#endif 69 70extern void bootpc_init(void); 71 72void 73cpu_rootconf() 74{ 75 76 bootpc_init(); 77 rootdevnames[0] = "nfs:"; 78} 79#endif 80 81/* 82 * Determine i/o configuration for a machine. 83 */ 84static void 85configure(void *dummy) 86{ 87 unsigned int msr; 88 89 cold = 0; 90 91 device_add_child(root_bus, "nexus", 0); 92 93 root_bus_configure(); 94 95 msr = mfmsr(); 96 msr = PSL_EE|PSL_FP|PSL_ME|PSL_IR|PSL_DR|PSL_RI; 97 mtmsr(msr); 98 msr = mfmsr(); 99} 100