1 /* $NetBSD: mainbus.c,v 1.5 2005/12/11 12:17:12 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. 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 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.5 2005/12/11 12:17:12 christos Exp $"); 35 36 #include "mainbus.h" 37 #include "pci.h" 38 #include "opt_multiprocessor.h" 39 #include "opt_pci.h" 40 41 #include <sys/param.h> 42 #include <sys/extent.h> 43 #include <sys/device.h> 44 #include <sys/malloc.h> 45 #include <sys/systm.h> 46 47 #include <machine/bus.h> 48 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pciconf.h> 51 52 #include <dev/marvell/gtvar.h> 53 54 #if NCPU == 0 55 #error A cpu device is now required 56 #endif 57 58 struct mainbus_attach_args { 59 const char *mba_busname; 60 int mba_unit; 61 }; 62 63 int mainbus_cfprint(void *, const char *); 64 int mainbus_match(struct device *, struct cfdata *, void *); 65 void mainbus_attach(struct device *, struct device *, void *); 66 67 CFATTACH_DECL(mainbus, sizeof(struct device), 68 mainbus_match, mainbus_attach, NULL, NULL); 69 70 int 71 mainbus_cfprint(void *aux, const char *pnp) 72 { 73 struct mainbus_attach_args *mba = aux; 74 75 if (pnp) 76 aprint_normal("%s at %s", mba->mba_busname, pnp); 77 aprint_normal(" unit %d", mba->mba_unit); 78 return (UNCONF); 79 } 80 81 82 /* 83 * Probe for the mainbus; always succeeds. 84 */ 85 int 86 mainbus_match(struct device *parent, struct cfdata *match, void *aux) 87 { 88 return 1; 89 } 90 91 /* 92 * Attach the mainbus. 93 */ 94 void 95 mainbus_attach(struct device *parent, struct device *self, void *aux) 96 { 97 struct mainbus_attach_args mba; 98 99 printf("\n"); 100 101 memset(&mba, 0, sizeof(mba)); 102 103 /* 104 * Always find the CPU 105 */ 106 mba.mba_busname = "cpu"; 107 mba.mba_unit = 0; 108 config_found(self, &mba, mainbus_cfprint); 109 110 #ifdef MULTIPROCESSOR 111 /* 112 * Try for a second one... 113 */ 114 mba.mba_busname = "cpu"; 115 mba.mba_unit = 1; 116 config_found(self, &mba, mainbus_cfprint); 117 #endif 118 119 /* 120 * Now try to configure the Discovery 121 */ 122 mba.mba_busname = "gt"; 123 mba.mba_unit = 0; 124 config_found(self, &mba, mainbus_cfprint); 125 } 126 127 static int cpu_match(struct device *, struct cfdata *, void *); 128 static void cpu_attach(struct device *, struct device *, void *); 129 130 CFATTACH_DECL(cpu, sizeof(struct device), cpu_match, cpu_attach, NULL, NULL); 131 132 extern struct cfdriver cpu_cd; 133 134 int 135 cpu_match(struct device *parent, struct cfdata *cf, void *aux) 136 { 137 struct mainbus_attach_args *mba = aux; 138 139 if (strcmp(mba->mba_busname, cpu_cd.cd_name) != 0) 140 return 0; 141 142 if (cpu_info[0].ci_dev != NULL) 143 return 0; 144 145 return 1; 146 } 147 148 void 149 cpu_attach(struct device *parent, struct device *self, void *aux) 150 { 151 (void) cpu_attach_common(self, 0); 152 } 153