1/* $NetBSD: autoconf.c,v 1.2 2024/01/24 21:53:34 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 1.2 2024/01/24 21:53:34 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 62void findroot(void); 63void disable_intr(void); 64void enable_intr(void); 65 66static void parse_cmdline(void); 67 68/* 69 * Determine i/o configuration for a machine. 70 */ 71void 72cpu_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 82void 83cpu_rootconf(void) 84{ 85 findroot(); 86 87 printf("boot device: %s\n", 88 booted_device ? device_xname(booted_device) : "<unknown>"); 89 90 rootconf(); 91} 92 93void 94findroot(void) 95{ 96} 97 98void 99device_register(device_t dev, void *aux) 100{ 101 if (bootspec != NULL && strcmp(device_xname(dev), bootspec) == 0) { 102 booted_device = dev; 103 booted_partition = 0; 104 } 105} 106 107static void 108parse_cmdline(void) 109{ 110 static char bootspec_buf[64]; 111 extern char wii_cmdline[]; 112 const char *cmdline = wii_cmdline; 113 114 while (*cmdline != '\0') { 115 const char *cp = cmdline; 116 117 if (*cp == '-') { 118 for (cp++; *cp != '\0'; cp++) { 119 BOOT_FLAG(*cp, boothowto); 120 } 121 } else if (strncmp(cp, "root=", 5) == 0) { 122 snprintf(bootspec_buf, sizeof(bootspec_buf), "%s", 123 cp + 5); 124 if (bootspec_buf[0] != '\0') { 125 bootspec = bootspec_buf; 126 booted_method = "bootinfo/rootdevice"; 127 } 128 } 129 130 cmdline += strlen(cmdline) + 1; 131 } 132} 133