1 /* $NetBSD: mainbus.c,v 1.23 2002/10/02 05:26:48 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 5 * Shin Takemura and PocketBSD Project. 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the PocketBSD project 18 * and its contributors. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 40 #include <machine/bus.h> 41 #include <machine/autoconf.h> 42 #include <machine/platid.h> 43 #include <machine/bus_space_hpcmips.h> 44 45 #include "locators.h" 46 47 #ifdef DEBUG 48 #define STATIC 49 #else 50 #define STATIC static 51 #endif 52 53 STATIC int mainbus_match(struct device *, struct cfdata *, void *); 54 STATIC void mainbus_attach(struct device *, struct device *, void *); 55 STATIC int mainbus_search(struct device *, struct cfdata *, void *); 56 STATIC int mainbus_print(void *, const char *); 57 58 CFATTACH_DECL(mainbus, sizeof(struct device), 59 mainbus_match, mainbus_attach, NULL, NULL); 60 61 STATIC int __mainbus_attached; 62 63 int 64 mainbus_match(struct device *parent, struct cfdata *cf, void *aux) 65 { 66 67 return (__mainbus_attached ? 0 : 1); /* don't attach twice */ 68 } 69 70 void 71 mainbus_attach(struct device *parent, struct device *self, void *aux) 72 { 73 static const char *devnames[] = { /* ATTACH ORDER */ 74 "cpu", /* 1. CPU */ 75 "vrip", "vr4102ip", "vr4122ip", /* 2. System BUS */ 76 "txsim", 77 "bivideo", "btnmgr", "hpcapm", /* 3. misc */ 78 }; 79 struct mainbus_attach_args ma; 80 int i; 81 82 __mainbus_attached = 1; 83 84 printf("\n"); 85 86 /* system bus_space */ 87 ma.ma_iot = hpcmips_system_bus_space(); 88 hpcmips_init_bus_space((struct bus_space_tag_hpcmips *)ma.ma_iot, 89 NULL, "main bus", 0, 0xffffffff); 90 91 92 /* search and attach devices in order */ 93 for (i = 0; i < sizeof(devnames) / sizeof(devnames[0]); i++) { 94 ma.ma_name = devnames[i]; 95 config_search(mainbus_search, self, &ma); 96 } 97 } 98 99 int 100 mainbus_search(struct device *parent, struct cfdata *cf, void *aux) 101 { 102 struct mainbus_attach_args *ma = (void *)aux; 103 int locator = cf->cf_loc[MAINBUSCF_PLATFORM]; 104 105 /* check device name */ 106 if (strcmp(ma->ma_name, cf->cf_name) != 0) 107 return (0); 108 109 /* check platform ID in config file */ 110 if (locator != MAINBUSCF_PLATFORM_DEFAULT && 111 !platid_match(&platid, PLATID_DEREFP(locator))) 112 return (0); 113 114 /* attach device */ 115 if (config_match(parent, cf, ma)) 116 config_attach(parent, cf, ma, mainbus_print); 117 118 return (0); 119 } 120 121 int 122 mainbus_print(void *aux, const char *pnp) 123 { 124 125 return (pnp ? QUIET : UNCONF); 126 } 127 128