1 /* $NetBSD: autoconf.c,v 1.23 2025/10/03 16:34:36 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1998 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Mark Brinicombe for 19 * the NetBSD project. 20 * 4. The name of the company nor the name of the author may be used to 21 * endorse or promote products derived from this software without specific 22 * prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * RiscBSD kernel project 37 * 38 * autoconf.c 39 * 40 * Autoconfiguration functions 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.23 2025/10/03 16:34:36 thorpej Exp $"); 45 46 #include "opt_md.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/reboot.h> 51 #include <sys/disklabel.h> 52 #include <sys/device.h> 53 #include <sys/conf.h> 54 #include <sys/kernel.h> 55 #include <machine/bootconfig.h> 56 #include <machine/intr.h> 57 #include <dev/pci/pcivar.h> 58 59 #include "isa.h" 60 61 void isa_intr_init(void); 62 63 static void get_device(const char *name); 64 static void set_root_device(void); 65 66 /* Decode a device name to a major and minor number */ 67 68 static void 69 get_device(const char *name) 70 { 71 int unit, part; 72 char devname[16]; 73 const char *cp; 74 device_t dv; 75 76 if (strncmp(name, "/dev/", 5) == 0) 77 name += 5; 78 79 if (devsw_name2blk(name, devname, sizeof(devname)) == -1) 80 return; 81 82 name += strlen(devname); 83 unit = part = 0; 84 85 cp = name; 86 while (*cp >= '0' && *cp <= '9') 87 unit = (unit * 10) + (*cp++ - '0'); 88 if (cp == name) 89 return; 90 91 if (*cp >= 'a' && *cp <= ('a' + MAXPARTITIONS)) 92 part = *cp - 'a'; 93 else if (*cp != '\0' && *cp != ' ') 94 return; 95 96 if ((dv = device_find_by_driver_unit(devname, unit)) != NULL) { 97 booted_device = dv; 98 booted_partition = part; 99 } 100 } 101 102 static void 103 set_root_device(void) 104 { 105 char *ptr; 106 107 if (boot_file) 108 get_device(boot_file); 109 if (boot_args && 110 get_bootconf_option(boot_args, "root", BOOTOPT_TYPE_STRING, &ptr)) 111 get_device(ptr); 112 } 113 114 /* 115 * Set up the root device from the boot args 116 */ 117 void 118 cpu_rootconf(void) 119 { 120 set_root_device(); 121 printf("boot device: %s\n", 122 booted_device != NULL ? device_xname(booted_device) : "<unknown>"); 123 rootconf(); 124 } 125 126 127 /* 128 * void cpu_configure() 129 * 130 * Configure all the root devices 131 * The root devices are expected to configure their own children 132 */ 133 extern int footbridge_imask[NIPL]; 134 135 void 136 cpu_configure(void) 137 { 138 footbridge_intr_evcnt_attach(); 139 /* 140 * Since various PCI interrupts could be routed via the ICU 141 * (for PCI devices in the bridge) we need to set up the ICU 142 * now so that these interrupts can be established correctly 143 * i.e. This is a hack. 144 */ 145 isa_intr_init(); 146 147 148 config_rootfound("mainbus", NULL); 149 150 #if defined(DEBUG) 151 /* Debugging information */ 152 printf("ipl_bio=%08x ipl_net=%08x ipl_tty=%08x ipl_vm=%08x\n", 153 footbridge_imask[IPL_BIO], footbridge_imask[IPL_NET], 154 footbridge_imask[IPL_TTY], footbridge_imask[IPL_VM]); 155 printf("ipl_audio=%08x ipl_imp=%08x ipl_high=%08x ipl_serial=%08x\n", 156 footbridge_imask[IPL_AUDIO], footbridge_imask[IPL_CLOCK], 157 footbridge_imask[IPL_HIGH], footbridge_imask[IPL_SERIAL]); 158 #endif /* defined(DEBUG) */ 159 160 /* Time to start taking interrupts so lets open the flood gates .... */ 161 (void)spl0(); 162 } 163 164 void 165 device_register(device_t dev, void *aux) 166 { 167 device_t pdev; 168 169 if ((pdev = device_parent(dev)) != NULL && 170 device_is_a(pdev, "pci")) { 171 /* 172 * cats builtin aceride is on 0:16:0 173 */ 174 struct pci_attach_args *pa = aux; 175 if (((pa)->pa_bus == 0 176 && (pa)->pa_device == 16 177 && (pa)->pa_function == 0)) { 178 if (! device_setprop_bool(dev, 179 "ali1543-ide-force-compat-mode", true)) { 180 printf("WARNING: unable to set " 181 "ali1543-ide-force-compat-mode " 182 "property for %s\n", device_xname(dev)); 183 } 184 } 185 } 186 } 187 /* End of autoconf.c */ 188
Indexes created Sun Oct 25 00:26:45 UTC 2026