1 /* $NetBSD: plb.c,v 1.3 2002/08/23 15:01:08 scw Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by Christopher G. Demetriou 52 * for the NetBSD Project. 53 * 4. The name of the author may not be used to endorse or promote products 54 * derived from this software without specific prior written permission 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 59 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 60 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 61 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 62 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 63 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 64 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 65 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include "locators.h" 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/device.h> 73 #include <sys/extent.h> 74 #include <sys/malloc.h> 75 76 #define _IBM4XX_BUS_DMA_PRIVATE 77 #include <powerpc/ibm4xx/dev/plbvar.h> 78 #include <powerpc/ibm4xx/ibm405gp.h> 79 80 /* 81 * The devices that attach to the processor local bus on the 405GP cpu. 82 */ 83 const struct plb_dev plb_devs [] = { 84 { "cpu", }, 85 { "ecc", }, 86 { "opb", }, 87 { "pchb", }, 88 { NULL } 89 }; 90 91 static int plb_match(struct device *, struct cfdata *, void *); 92 static void plb_attach(struct device *, struct device *, void *); 93 static int plb_submatch(struct device *, struct cfdata *, void *); 94 static int plb_print(void *, const char *); 95 96 struct cfattach plb_ca = { 97 sizeof(struct device), plb_match, plb_attach 98 }; 99 100 101 /* 102 * Probe for the plb; always succeeds. 103 */ 104 static int 105 plb_match(struct device *parent, struct cfdata *cf, void *aux) 106 { 107 108 return (1); 109 } 110 111 static int 112 plb_submatch(struct device *parent, struct cfdata *cf, void *aux) 113 { 114 115 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 116 } 117 118 /* 119 * Attach the processor local bus. 120 */ 121 static void 122 plb_attach(struct device *parent, struct device *self, void *aux) 123 { 124 struct plb_attach_args paa; 125 struct plb_dev *local_plb_devs = aux; 126 int i; 127 128 printf("\n"); 129 130 for (i = 0; plb_devs[i].plb_name != NULL; i++) { 131 paa.plb_name = plb_devs[i].plb_name; 132 paa.plb_bt = ibm4xx_make_bus_space_tag(0, 0); 133 paa.plb_dmat = &ibm4xx_default_bus_dma_tag; 134 paa.plb_irq = PLBCF_IRQ_DEFAULT; 135 136 (void) config_found_sm(self, &paa, plb_print, plb_submatch); 137 } 138 139 while (local_plb_devs && local_plb_devs->plb_name != NULL) { 140 paa.plb_name = local_plb_devs->plb_name; 141 paa.plb_bt = ibm4xx_make_bus_space_tag(0, 0); 142 paa.plb_dmat = &ibm4xx_default_bus_dma_tag; 143 paa.plb_irq = PLBCF_IRQ_DEFAULT; 144 145 (void) config_found_sm(self, &paa, plb_print, plb_submatch); 146 local_plb_devs++; 147 } 148 } 149 150 static int 151 plb_print(void *aux, const char *pnp) 152 { 153 struct plb_attach_args *paa = aux; 154 155 if (pnp) 156 printf("%s at %s", paa->plb_name, pnp); 157 if (paa->plb_irq != PLBCF_IRQ_DEFAULT) 158 printf(" irq %d", paa->plb_irq); 159 160 return (UNCONF); 161 } 162