1 /* $NetBSD: mainbus.c,v 1.20 2008/04/28 20:23:29 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Steve C. Woodford 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Derived from the mainbus code in mvme68k/autoconf.c by Chuck Cranor. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.20 2008/04/28 20:23:29 martin Exp $"); 38 39 #include "vmetwo.h" 40 41 #include <sys/param.h> 42 #include <sys/kernel.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #define _MVME68K_BUS_DMA_PRIVATE 47 #define _MVME68K_BUS_SPACE_PRIVATE 48 #include <machine/bus.h> 49 #undef _MVME68K_BUS_DMA_PRIVATE 50 #undef _MVME68K_BUS_SPACE_PRIVATE 51 #include <machine/cpu.h> 52 53 #include <mvme68k/dev/mainbus.h> 54 55 #if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177) 56 #if NVMETWO == 0 57 #include <dev/vme/vmevar.h> 58 #include <dev/mvme/mvmebus.h> 59 #include <dev/mvme/vme_twovar.h> 60 #endif 61 #endif 62 63 void mainbus_attach(struct device *, struct device *, void *); 64 int mainbus_match(struct device *, struct cfdata *, void *); 65 int mainbus_print(void *, const char *); 66 67 CFATTACH_DECL(mainbus, sizeof(struct device), 68 mainbus_match, mainbus_attach, NULL, NULL); 69 70 71 struct mainbus_devices { 72 const char *md_name; 73 bus_addr_t md_offset; 74 }; 75 76 #ifdef MVME147 77 static struct mainbus_devices mainbusdevs_147[] = { 78 {"pcc", MAINBUS_PCC_OFFSET}, 79 {"timekeeper", MAINBUS_TK147_OFFSET}, 80 {NULL, 0} 81 }; 82 #endif 83 84 #if defined(MVME162) || defined(MVME167) || defined(MVME172) || defined(MVME177) 85 static struct mainbus_devices mainbusdevs_1x7[] = { 86 {"pcctwo", MAINBUS_PCCTWO_OFFSET}, 87 {"vmetwo", MAINBUS_VMETWO_OFFSET}, 88 {"timekeeper", MAINBUS_TIMEKEEPER_OFFSET}, 89 {NULL, 0} 90 }; 91 #endif 92 93 struct mvme68k_bus_dma_tag _mainbus_dma_tag = { 94 NULL, 95 _bus_dmamap_create, 96 _bus_dmamap_destroy, 97 _bus_dmamap_load_direct, 98 _bus_dmamap_load_mbuf_direct, 99 _bus_dmamap_load_uio_direct, 100 _bus_dmamap_load_raw_direct, 101 _bus_dmamap_unload, 102 NULL, /* Set up at run-time */ 103 _bus_dmamem_alloc, 104 _bus_dmamem_free, 105 _bus_dmamem_map, 106 _bus_dmamem_unmap, 107 _bus_dmamem_mmap 108 }; 109 110 struct mvme68k_bus_space_tag _mainbus_space_tag = { 111 NULL, 112 _bus_space_map, 113 _bus_space_unmap, 114 _bus_space_peek_1, 115 _bus_space_peek_2, 116 _bus_space_peek_4, 117 _bus_space_poke_1, 118 _bus_space_poke_2, 119 _bus_space_poke_4 120 }; 121 122 123 /* ARGSUSED */ 124 int 125 mainbus_match(struct device *parent, struct cfdata *cf, void *args) 126 { 127 static int mainbus_matched; 128 129 if (mainbus_matched) 130 return 0; 131 132 return (mainbus_matched = 1); 133 } 134 135 /* ARGSUSED */ 136 void 137 mainbus_attach(struct device *parent, struct device *self, void *args) 138 { 139 struct mainbus_attach_args ma; 140 struct mainbus_devices *devices; 141 int i; 142 143 printf("\n"); 144 145 /* 146 * Attach children appropriate for this CPU. 147 */ 148 switch (machineid) { 149 #ifdef MVME147 150 case MVME_147: 151 devices = mainbusdevs_147; 152 _mainbus_dma_tag._dmamap_sync = _bus_dmamap_sync_030; 153 break; 154 #endif 155 156 #if defined(MVME162) || defined(MVME167) || defined(MVME172) || defined(MVME177) 157 case MVME_162: 158 case MVME_167: 159 case MVME_172: 160 case MVME_177: 161 devices = mainbusdevs_1x7; 162 _mainbus_dma_tag._dmamap_sync = _bus_dmamap_sync_0460; 163 break; 164 #endif 165 166 default: 167 panic("mainbus_attach: impossible CPU type"); 168 } 169 170 for (i = 0; devices[i].md_name != NULL; ++i) { 171 /* 172 * On mvme162 and up, if the kernel config file had no vmetwo0 173 * device, we have to do some manual initialisation on the 174 * VMEChip2 to get local interrupts working (ABORT switch, 175 * hardware assisted soft interrupts). 176 */ 177 #if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177) 178 #if NVMETWO == 0 179 if (devices[i].md_offset == MAINBUS_VMETWO_OFFSET 180 #if defined(MVME147) 181 && machineid != MVME_147 182 #endif 183 ) { 184 (void)vmetwo_probe(&_mainbus_space_tag, 185 intiobase_phys + MAINBUS_VMETWO_OFFSET); 186 continue; 187 } 188 #endif 189 #endif 190 ma.ma_name = devices[i].md_name; 191 ma.ma_dmat = &_mainbus_dma_tag; 192 ma.ma_bust = &_mainbus_space_tag; 193 ma.ma_offset = devices[i].md_offset + intiobase_phys; 194 195 (void)config_found(self, &ma, mainbus_print); 196 } 197 198 199 /* 200 * Attach the memory controllers on mvme162->mvme177. 201 * Note: These *must* be attached after the PCCChip2/MCChip. 202 * They must also be attached *after* the VMEchip2 has been 203 * initialised (either by the driver, or the vmetwo_probe() 204 * call above). 205 */ 206 #if defined(MVME162) || defined(MVME172) || defined(MVME167) || defined(MVME177) 207 #if defined(MVME147) 208 if (machineid != MVME_147) 209 #endif 210 { 211 ma.ma_name = "memc"; 212 ma.ma_dmat = &_mainbus_dma_tag; 213 ma.ma_bust = &_mainbus_space_tag; 214 ma.ma_offset = MAINBUS_MEMC1_OFFSET + intiobase_phys; 215 (void)config_found(self, &ma, mainbus_print); 216 ma.ma_offset = MAINBUS_MEMC2_OFFSET + intiobase_phys; 217 (void)config_found(self, &ma, mainbus_print); 218 } 219 #endif 220 221 /* 222 * Attach Industry Pack modules on mvme162 and mvme172 223 */ 224 #if defined(MVME162) || defined(MVME172) 225 #if defined(MVME147) || defined(MVME167) || defined(MVME177) 226 if (machineid == MVME_162 || machineid == MVME_172) 227 #endif 228 { 229 ma.ma_name = "ipack"; 230 ma.ma_dmat = &_mainbus_dma_tag; 231 ma.ma_bust = &_mainbus_space_tag; 232 ma.ma_offset = MAINBUS_IPACK_OFFSET + intiobase_phys; 233 (void)config_found(self, &ma, mainbus_print); 234 } 235 #endif 236 } 237 238 int 239 mainbus_print(void *aux, const char *cp) 240 { 241 struct mainbus_attach_args *ma; 242 243 ma = aux; 244 245 if (cp) 246 aprint_normal("%s at %s", ma->ma_name, cp); 247 248 aprint_normal(" address 0x%lx", ma->ma_offset); 249 250 return UNCONF; 251 } 252