1 /* $NetBSD: autoconf.c,v 1.3 2024/10/13 16:21:37 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 35 */ 36 37 /* 38 * Setup the system to run on the current machine. 39 * 40 * Configure() is called at boot time and initializes the vba 41 * device tables and the memory controller monitoring. Available 42 * devices are determined (from possibilities mentioned in ioconf.c), 43 * and the drivers are initialized. 44 */ 45 46 #include <sys/cdefs.h> 47 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.3 2024/10/13 16:21:37 jmcneill Exp $"); 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/buf.h> 52 #include <sys/disklabel.h> 53 #include <sys/conf.h> 54 #include <sys/reboot.h> 55 #include <sys/device.h> 56 #include <sys/boot_flag.h> 57 58 #include <powerpc/pte.h> 59 60 #include <machine/wii.h> 61 62 void findroot(void); 63 void disable_intr(void); 64 void enable_intr(void); 65 66 static void parse_cmdline(void); 67 68 /* 69 * Determine i/o configuration for a machine. 70 */ 71 void 72 cpu_configure(void) 73 { 74 parse_cmdline(); 75 76 if (config_rootfound("mainbus", NULL) == NULL) 77 panic("configure: mainbus not configured"); 78 79 genppc_cpu_configure(); 80 81 wii_slot_led(false); 82 } 83 84 void 85 cpu_rootconf(void) 86 { 87 findroot(); 88 89 printf("boot device: %s\n", 90 booted_device ? device_xname(booted_device) : "<unknown>"); 91 92 rootconf(); 93 } 94 95 void 96 findroot(void) 97 { 98 } 99 100 void 101 device_register(device_t dev, void *aux) 102 { 103 if (bootspec != NULL && strcmp(device_xname(dev), bootspec) == 0) { 104 booted_device = dev; 105 booted_partition = 0; 106 } 107 } 108 109 static void 110 parse_cmdline(void) 111 { 112 static char bootspec_buf[64]; 113 extern char wii_cmdline[]; 114 const char *cmdline = wii_cmdline; 115 116 while (*cmdline != '\0') { 117 const char *cp = cmdline; 118 119 if (*cp == '-') { 120 for (cp++; *cp != '\0'; cp++) { 121 BOOT_FLAG(*cp, boothowto); 122 } 123 } else if (strncmp(cp, "root=", 5) == 0) { 124 snprintf(bootspec_buf, sizeof(bootspec_buf), "%s", 125 cp + 5); 126 if (bootspec_buf[0] != '\0') { 127 bootspec = bootspec_buf; 128 booted_method = "bootinfo/rootdevice"; 129 } 130 } 131 132 cmdline += strlen(cmdline) + 1; 133 } 134 } 135