gemini_obio.c revision 1.5
1 /* $NetBSD: gemini_obio.c,v 1.5 2008/11/13 05:03:05 cliff Exp $ */ 2 3 /* adapted from: 4 * $Id: gemini_obio.c,v 1.5 2008/11/13 05:03:05 cliff Exp $ 5 */ 6 7 /* 8 * Autoconfiguration support for the Texas Instruments OMAP "On Board" I/O. 9 * 10 * Based on arm/omap/omap_emifs.c which in turn was derived 11 * Based on arm/xscale/pxa2x0.c which in turn was derived 12 * from arm/sa11x0/sa11x0.c 13 * 14 * Copyright (c) 2002, 2005 Genetec Corporation. All rights reserved. 15 * Written by Hiroyuki Bessho for Genetec Corporation. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. All advertising materials mentioning features or use of this software 26 * must display the following acknowledgement: 27 * This product includes software developed for the NetBSD Project by 28 * Genetec Corporation. 29 * 4. The name of Genetec Corporation may not be used to endorse or 30 * promote products derived from this software without specific prior 31 * written permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 35 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 36 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 37 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 38 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 39 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 40 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 41 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 43 * POSSIBILITY OF SUCH DAMAGE. 44 * 45 * Copyright (c) 1997,1998, 2001, The NetBSD Foundation, Inc. 46 * All rights reserved. 47 * 48 * This code is derived from software contributed to The NetBSD Foundation 49 * by IWAMOTO Toshihiro, Ichiro FUKUHARA and Paul Kranenburg. 50 * 51 * Redistribution and use in source and binary forms, with or without 52 * modification, are permitted provided that the following conditions 53 * are met: 54 * 1. Redistributions of source code must retain the above copyright 55 * notice, this list of conditions and the following disclaimer. 56 * 2. Redistributions in binary form must reproduce the above copyright 57 * notice, this list of conditions and the following disclaimer in the 58 * documentation and/or other materials provided with the distribution. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 61 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 62 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 63 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 64 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 65 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 66 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 67 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 68 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 69 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 70 * POSSIBILITY OF SUCH DAMAGE. 71 * 72 * Copyright (c) 1999 73 * Shin Takemura and PocketBSD Project. All rights reserved. 74 * 75 * Redistribution and use in source and binary forms, with or without 76 * modification, are permitted provided that the following conditions 77 * are met: 78 * 1. Redistributions of source code must retain the above copyright 79 * notice, this list of conditions and the following disclaimer. 80 * 2. Redistributions in binary form must reproduce the above copyright 81 * notice, this list of conditions and the following disclaimer in the 82 * documentation and/or other materials provided with the distribution. 83 * 3. All advertising materials mentioning features or use of this software 84 * must display the following acknowledgement: 85 * This product includes software developed by the PocketBSD project 86 * and its contributors. 87 * 4. Neither the name of the project nor the names of its contributors 88 * may be used to endorse or promote products derived from this software 89 * without specific prior written permission. 90 * 91 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 92 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 94 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 95 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 96 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 97 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 98 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 99 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 100 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 101 * SUCH DAMAGE. 102 */ 103 104 #include "opt_gemini.h" 105 #include <sys/cdefs.h> 106 __KERNEL_RCSID(0, "$NetBSD: gemini_obio.c,v 1.5 2008/11/13 05:03:05 cliff Exp $"); 107 108 #include "locators.h" 109 #include "obio.h" 110 #include "geminiicu.h" 111 #include "pci.h" 112 113 #include <sys/param.h> 114 #include <sys/systm.h> 115 #include <sys/device.h> 116 #include <sys/kernel.h> 117 #include <sys/reboot.h> 118 119 #include <machine/cpu.h> 120 #include <machine/bus.h> 121 122 #include <arm/cpufunc.h> 123 #include <arm/mainbus/mainbus.h> 124 #include <arm/gemini/gemini_var.h> 125 #include <arm/gemini/gemini_reg.h> 126 127 #include <arm/gemini/gemini_obiovar.h> 128 129 typedef struct { 130 boolean_t cs_valid; 131 ulong cs_addr; 132 ulong cs_size; 133 } obio_csconfig_t; 134 135 /* prototypes */ 136 static int obio_match(device_t, cfdata_t, void *); 137 static void obio_attach(device_t, device_t, void *); 138 static int obio_search(device_t, cfdata_t, const int *, void *); 139 static int obio_find(device_t, cfdata_t, const int *, void *); 140 static int obio_print(void *, const char *); 141 static void obio_attach_critical(struct obio_softc *); 142 143 /* attach structures */ 144 CFATTACH_DECL(obio, sizeof(struct obio_softc), 145 obio_match, obio_attach, NULL, NULL); 146 147 148 static int 149 obio_match(device_t parent, cfdata_t match, void *aux) 150 { 151 return 1; 152 } 153 154 static void 155 obio_attach(device_t parent, device_t self, void *aux) 156 { 157 struct obio_softc *sc = device_private(self); 158 struct mainbus_attach_args *mb = (struct mainbus_attach_args *)aux; 159 #if NPCI > 0 160 struct pcibus_attach_args pba; 161 #endif 162 163 sc->sc_iot = &gemini_bs_tag; 164 165 aprint_normal(": On-Board IO\n"); 166 167 #ifdef GEMINI_SLAVE 168 sc->sc_dmarange.dr_sysbase = 0; 169 sc->sc_dmarange.dr_busbase = (128 - MEMSIZE) * 1024 * 1024; 170 sc->sc_dmarange.dr_len = MEMSIZE * 1024 * 1024; 171 gemini_bus_dma_tag._ranges = &sc->sc_dmarange; 172 gemini_bus_dma_tag._nranges = 1; 173 #endif 174 175 sc->sc_ioh = 0; 176 sc->sc_dmat = &gemini_bus_dma_tag; 177 sc->sc_base = mb->mb_iobase; 178 sc->sc_size = mb->mb_iosize; 179 180 /* 181 * Attach critical devices first. 182 */ 183 obio_attach_critical(sc); 184 185 #if NPCI > 0 186 /* 187 * map PCI controller registers 188 */ 189 if (bus_space_map(sc->sc_iot, GEMINI_PCICFG_BASE, 190 GEMINI_PCI_CFG_DATA+4, 0, &sc->sc_pcicfg_ioh)) { 191 aprint_error("cannot map PCI controller at %#x\n", 192 GEMINI_PCICFG_BASE); 193 return; 194 } 195 /* 196 * initialize the PCI chipset tag 197 */ 198 gemini_pci_init(&sc->sc_pci_chipset, sc); 199 #endif /* NPCI */ 200 201 /* 202 * attach the rest of our devices 203 */ 204 config_search_ia(obio_search, self, "obio", NULL); 205 206 #if NPCI > 0 207 /* 208 * attach the PCI bus 209 */ 210 pba.pba_memt = sc->sc_iot; 211 pba.pba_iot = sc->sc_iot;; 212 pba.pba_dmat = sc->sc_dmat; 213 pba.pba_dmat64 = NULL; 214 pba.pba_pc = &sc->sc_pci_chipset; 215 pba.pba_bus = 0; 216 pba.pba_bridgetag = NULL; 217 pba.pba_intrswiz = 0; 218 pba.pba_intrtag = 0; 219 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED | 220 PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY; 221 222 (void) config_found_ia(&sc->sc_dev, "pcibus", &pba, pcibusprint); 223 #endif /* NPCI */ 224 225 } 226 227 static int 228 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 229 { 230 struct obio_softc * const sc = device_private(parent); 231 struct obio_attach_args oa; 232 233 /* Set up the attach args. */ 234 if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) { 235 #if 0 236 if (cf->cf_loc[OBIOCF_MULT] == 1) 237 oa.obio_iot = &nobyteacc_bs_tag; 238 else 239 #endif 240 panic("nobyteacc specified for device with " 241 "non-byte multiplier\n"); 242 } else { 243 switch (cf->cf_loc[OBIOCF_MULT]) { 244 case 1: 245 oa.obio_iot = &gemini_bs_tag; 246 break; 247 #if 0 248 case 2: 249 oa.obio_iot = &gemini_a2x_bs_tag; 250 break; 251 #endif 252 case 4: 253 oa.obio_iot = &gemini_a4x_bs_tag; 254 break; 255 default: 256 panic("Unsupported obio bus multiplier."); 257 break; 258 } 259 } 260 261 oa.obio_dmat = sc->sc_dmat; 262 oa.obio_addr = cf->cf_loc[OBIOCF_ADDR]; 263 oa.obio_size = cf->cf_loc[OBIOCF_SIZE]; 264 oa.obio_intr = cf->cf_loc[OBIOCF_INTR]; 265 oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; 266 267 if (config_match(parent, cf, &oa)) { 268 config_attach(parent, cf, &oa, obio_print); 269 return 0; /* love it */ 270 } 271 272 return UNCONF; /* NG */ 273 } 274 275 static int 276 obio_find(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 277 { 278 struct obio_attach_args * const oa = aux; 279 280 if (oa->obio_addr != OBIOCF_ADDR_DEFAULT 281 && oa->obio_addr != cf->cf_loc[OBIOCF_ADDR]) 282 return 0; 283 if (oa->obio_size != OBIOCF_SIZE_DEFAULT 284 && oa->obio_size != cf->cf_loc[OBIOCF_SIZE]) 285 return 0; 286 if (oa->obio_intr != OBIOCF_INTR_DEFAULT 287 && oa->obio_intr != cf->cf_loc[OBIOCF_INTR]) 288 return 0; 289 if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT 290 && oa->obio_intrbase != cf->cf_loc[OBIOCF_INTRBASE]) 291 return 0; 292 293 /* Set up the attach args. */ 294 if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) { 295 #if 0 296 if (cf->cf_loc[OBIOCF_MULT] == 1) 297 oa->obio_iot = &nobyteacc_bs_tag; 298 else 299 #endif 300 panic("nobyteacc specified for device with " 301 "non-byte multiplier\n"); 302 } else { 303 switch (cf->cf_loc[OBIOCF_MULT]) { 304 case 1: 305 oa->obio_iot = &gemini_bs_tag; 306 break; 307 #if 0 308 case 2: 309 oa->obio_iot = &gemini_a2x_bs_tag; 310 break; 311 #endif 312 case 4: 313 oa->obio_iot = &gemini_a4x_bs_tag; 314 break; 315 default: 316 panic("Unsupported obio bus multiplier."); 317 break; 318 } 319 } 320 oa->obio_addr = cf->cf_loc[OBIOCF_ADDR]; 321 oa->obio_size = cf->cf_loc[OBIOCF_SIZE]; 322 oa->obio_intr = cf->cf_loc[OBIOCF_INTR]; 323 oa->obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; 324 325 return config_match(parent, cf, oa); 326 } 327 328 #if NGEMINIICU == 0 329 #error no geminiicu present in config file 330 #endif 331 332 static const struct { 333 const char *name; 334 bus_addr_t addr; 335 bool required; 336 } critical_devs[] = { 337 #if defined(GEMINI_MASTER) || defined(GEMINI_SINGLE) 338 { .name = "geminiicu0", .addr = 0x48000000, .required = true }, 339 { .name = "geminiwdt0", .addr = 0x41000000, .required = true }, 340 { .name = "geminitmr0", .addr = 0x43000000, .required = true }, 341 { .name = "geminitmr2", .addr = 0x43000000, .required = true }, 342 { .name = "com0", .addr = 0x42000000, .required = true }, 343 #elif defined(GEMINI_SLAVE) 344 { .name = "geminiicu1", .addr = 0x49000000, .required = true }, 345 { .name = "geminitmr1", .addr = 0x43000000, .required = true }, 346 { .name = "geminitmr2", .addr = 0x43000000, .required = true }, 347 { .name = "geminilpchc0", .addr = 0x47000000, .required = true }, 348 #endif 349 }; 350 351 static void 352 obio_attach_critical(struct obio_softc *sc) 353 { 354 struct obio_attach_args oa; 355 cfdata_t cf; 356 size_t i; 357 358 for (i = 0; i < __arraycount(critical_devs); i++) { 359 oa.obio_iot = sc->sc_iot; 360 oa.obio_dmat = sc->sc_dmat; 361 362 oa.obio_addr = critical_devs[i].addr; 363 oa.obio_size = OBIOCF_SIZE_DEFAULT; 364 oa.obio_intr = OBIOCF_INTR_DEFAULT; 365 oa.obio_intrbase = OBIOCF_INTRBASE_DEFAULT; 366 367 #if 0 368 if (oa.obio_addr != OBIOCF_ADDR_DEFAULT 369 && (oa.obio_addr < sc->sc_base 370 || oa.obio_addr >= sc->sc_base + sc->sc_size)) 371 continue; 372 #endif 373 374 cf = config_search_ia(obio_find, &sc->sc_dev, "obio", &oa); 375 if (cf == NULL && critical_devs[i].required) 376 panic("obio_attach_critical: failed to find %s!", 377 critical_devs[i].name); 378 379 oa.obio_addr = cf->cf_loc[OBIOCF_ADDR]; 380 oa.obio_size = cf->cf_loc[OBIOCF_SIZE]; 381 oa.obio_intr = cf->cf_loc[OBIOCF_INTR]; 382 oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; 383 config_attach(&sc->sc_dev, cf, &oa, obio_print); 384 } 385 } 386 387 static int 388 obio_print(void *aux, const char *name) 389 { 390 struct obio_attach_args *oa = (struct obio_attach_args*)aux; 391 392 if (oa->obio_addr != OBIOCF_ADDR_DEFAULT) { 393 aprint_normal(" addr 0x%08lx", oa->obio_addr); 394 if (oa->obio_size != OBIOCF_SIZE_DEFAULT) 395 aprint_normal("-0x%08lx", 396 oa->obio_addr + oa->obio_size-1); 397 } 398 if (oa->obio_intr != OBIOCF_INTR_DEFAULT) 399 aprint_normal(" intr %d", oa->obio_intr); 400 if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT) 401 aprint_normal(" intrbase %d", oa->obio_intrbase); 402 403 return UNCONF; 404 } 405
Indexes created Wed Sep 24 05:09:52 GMT 2025