1/* $NetBSD: autoconf.c,v 1.8 2011/02/20 07:55:20 matt Exp $ */ 2 3/*- 4 * Copyright (c) 2001, 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.8 2011/02/20 07:55:20 matt Exp $"); 31 32#include "opt_sbd.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/conf.h> 37#include <sys/device.h> 38#include <sys/intr.h> 39 40#include <machine/sbdvar.h> 41#include <machine/disklabel.h> 42 43char __boot_kernel_name[64]; 44 45void 46cpu_configure(void) 47{ 48 49 intr_init(); 50 51 splhigh(); 52 if (config_rootfound("mainbus", NULL) == NULL) 53 panic("no mainbus found"); 54 spl0(); 55} 56 57void 58cpu_rootconf(void) 59{ 60 device_t dv; 61 char *p; 62 const char *bootdev_name, *netdev_name; 63 int unit, partition; 64 65 /* Extract boot device */ 66 for (p = __boot_kernel_name; *p; p++) { 67 if (*p == ':') { 68 *p = '\0'; 69 break; 70 } 71 } 72 p = __boot_kernel_name; 73 74 bootdev_name = 0; 75 unit = 0; 76 77 switch (SBD_INFO->machine) { 78#ifdef EWS4800_TR2 79 case MACHINE_TR2: 80 netdev_name = "iee0"; 81 break; 82#endif 83#ifdef EWS4800_TR2A 84 case MACHINE_TR2A: 85 netdev_name = "le0"; 86 break; 87#endif 88 default: 89 netdev_name = NULL; 90 } 91 partition = 0; 92 93 if (strncmp(p, "sd", 2) == 0) { 94 unit = p[2] - '0'; 95 partition = p[3] - 'a'; 96 if (unit >= 0 && unit <= 9 && partition >= 0 && 97 partition < MAXPARTITIONS) { 98 p[3] = '\0'; 99 bootdev_name = __boot_kernel_name; 100 } 101 } else if (strncmp(p, "nfs", 3) == 0) { 102 bootdev_name = netdev_name; 103 } else if (strncmp(p, "mem", 3) == 0) { 104 int bootdev = (*platform.ipl_bootdev)(); 105 if (bootdev == NVSRAM_BOOTDEV_HARDDISK) 106 bootdev_name = "sd0"; 107 else if (bootdev == NVSRAM_BOOTDEV_NETWORK) 108 bootdev_name = netdev_name; 109 else 110 bootdev_name = 0; 111 } 112 113 if (bootdev_name && 114 (dv = device_find_by_xname(bootdev_name)) != NULL) { 115 booted_device = dv; 116 booted_partition = partition; 117 } 118 rootconf(); 119} 120