plb.c revision 1.10
1 /* $NetBSD: plb.c,v 1.10 2003/07/25 10:12:44 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 <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: plb.c,v 1.10 2003/07/25 10:12:44 scw Exp $"); 70 71 #include "locators.h" 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/device.h> 76 #include <sys/extent.h> 77 #include <sys/malloc.h> 78 79 #define _POWERPC_BUS_DMA_PRIVATE 80 #include <machine/bus.h> 81 82 #include <powerpc/ibm4xx/dev/plbvar.h> 83 #include <powerpc/ibm4xx/ibm405gp.h> 84 85 /* 86 * The devices that attach to the processor local bus on the 405GP cpu. 87 */ 88 const struct plb_dev plb_devs [] = { 89 { "cpu", }, 90 { "ecc", }, 91 { "opb", }, 92 { "pchb", }, 93 { NULL } 94 }; 95 96 static int plb_match(struct device *, struct cfdata *, void *); 97 static void plb_attach(struct device *, struct device *, void *); 98 static int plb_submatch(struct device *, struct cfdata *, void *); 99 static int plb_print(void *, const char *); 100 101 CFATTACH_DECL(plb, sizeof(struct device), 102 plb_match, plb_attach, NULL, NULL); 103 104 /* 105 * "generic" DMA struct, nothing special. 106 */ 107 struct powerpc_bus_dma_tag ibm4xx_default_bus_dma_tag = { 108 NULL, 109 0, /* _bounce_thresh */ 110 _bus_dmamap_create, 111 _bus_dmamap_destroy, 112 _bus_dmamap_load, 113 _bus_dmamap_load_mbuf, 114 _bus_dmamap_load_uio, 115 _bus_dmamap_load_raw, 116 _bus_dmamap_unload, 117 _bus_dmamap_sync, 118 _bus_dmamem_alloc, 119 _bus_dmamem_free, 120 _bus_dmamem_map, 121 _bus_dmamem_unmap, 122 _bus_dmamem_mmap, 123 _bus_dma_phys_to_bus_mem_generic, 124 _bus_dma_bus_mem_to_phys_generic, 125 }; 126 127 /* 128 * Probe for the plb; always succeeds. 129 */ 130 static int 131 plb_match(struct device *parent, struct cfdata *cf, void *aux) 132 { 133 134 return (1); 135 } 136 137 static int 138 plb_submatch(struct device *parent, struct cfdata *cf, void *aux) 139 { 140 141 return (config_match(parent, cf, aux)); 142 } 143 144 /* 145 * Attach the processor local bus. 146 */ 147 static void 148 plb_attach(struct device *parent, struct device *self, void *aux) 149 { 150 struct plb_attach_args paa; 151 struct plb_dev *local_plb_devs = aux; 152 int i; 153 154 printf("\n"); 155 156 for (i = 0; plb_devs[i].plb_name != NULL; i++) { 157 paa.plb_name = plb_devs[i].plb_name; 158 paa.plb_dmat = &ibm4xx_default_bus_dma_tag; 159 paa.plb_irq = PLBCF_IRQ_DEFAULT; 160 161 (void) config_found_sm(self, &paa, plb_print, plb_submatch); 162 } 163 164 while (local_plb_devs && local_plb_devs->plb_name != NULL) { 165 paa.plb_name = local_plb_devs->plb_name; 166 paa.plb_dmat = &ibm4xx_default_bus_dma_tag; 167 paa.plb_irq = PLBCF_IRQ_DEFAULT; 168 169 (void) config_found_sm(self, &paa, plb_print, plb_submatch); 170 local_plb_devs++; 171 } 172 } 173 174 static int 175 plb_print(void *aux, const char *pnp) 176 { 177 struct plb_attach_args *paa = aux; 178 179 if (pnp) 180 aprint_normal("%s at %s", paa->plb_name, pnp); 181 if (paa->plb_irq != PLBCF_IRQ_DEFAULT) 182 aprint_normal(" irq %d", paa->plb_irq); 183 184 return (UNCONF); 185 } 186
Indexes created Mon Sep 29 21:09:56 GMT 2025