1/* $NetBSD: autoconf.c,v 1.30 2012/07/29 18:05:40 mlelstv Exp $ */ 2 3/* 4 * Copyright (c) 2000 Soren S. Jorvang. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.30 2012/07/29 18:05:40 mlelstv Exp $"); 30 31#include <sys/param.h> 32#include <sys/buf.h> 33#include <sys/cpu.h> 34#include <sys/conf.h> 35#include <sys/device.h> 36#include <sys/intr.h> 37#include <sys/systm.h> 38 39#include <dev/pci/pcivar.h> 40#include <dev/ata/atavar.h> 41 42extern char bootstring[]; 43extern int netboot; 44extern int bootunit; 45extern int bootpart; 46 47void 48cpu_configure(void) 49{ 50 51 (void)splhigh(); 52 53 intr_init(); 54 55 if (config_rootfound("mainbus", NULL) == NULL) 56 panic("no mainbus found"); 57 58 /* 59 * Hardware interrupts will be enabled in 60 * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks() 61 * to avoid hardclock(9) by CPU INT5 before softclockintr is 62 * initialized in initclocks(). 63 */ 64} 65 66void 67cpu_rootconf(void) 68{ 69 70 printf("boot device: %s\n", 71 booted_device ? device_xname(booted_device) : "<unknown>"); 72 73 rootconf(); 74} 75 76void 77device_register(device_t dev, void *aux) 78{ 79 80 if (booted_device != NULL) 81 return; 82 83 if (netboot == 1) { 84 /* check tlp0 on netboot */ 85 if (device_class(dev) == DV_IFNET && 86 device_is_a(dev, "tlp")) { 87 struct pci_attach_args *pa = aux; 88 89 if (pa->pa_bus == 0 && 90 pa->pa_device == 7 && 91 pa->pa_function == 0) 92 booted_device = dev; 93 } 94 } else { 95 /* check wd channel and drive */ 96 if (device_class(dev) == DV_DISK && 97 device_is_a(dev, "wd")) { 98 struct ata_device *adev = aux; 99 int unit; 100 101 unit = adev->adev_channel * 2 + 102 adev->adev_drv_data->drive; 103 if (unit == bootunit) { 104 booted_device = dev; 105 } 106 } 107 /* 108 * XXX Match up MBR boot specification with BSD disklabel 109 * for root? 110 */ 111 booted_partition = 0; 112 } 113} 114