1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright 2002 by Peter Grehan. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Driver for KeyLargo/Pangea, the MacPPC south bridge ASIC. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/malloc.h> 38 #include <sys/module.h> 39 #include <sys/bus.h> 40 #include <sys/rman.h> 41 42 #include <vm/vm.h> 43 #include <vm/pmap.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr_machdep.h> 47 #include <machine/resource.h> 48 #include <machine/vmparam.h> 49 50 #include <dev/ofw/ofw_bus.h> 51 #include <dev/ofw/ofw_bus_subr.h> 52 #include <dev/ofw/openfirm.h> 53 54 #include <powerpc/powermac/maciovar.h> 55 #include <powerpc/powermac/platform_powermac.h> 56 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcireg.h> 59 60 /* 61 * Macio softc 62 */ 63 struct macio_softc { 64 phandle_t sc_node; 65 vm_offset_t sc_base; 66 vm_offset_t sc_size; 67 struct rman sc_mem_rman; 68 69 /* FCR registers */ 70 int sc_memrid; 71 struct resource *sc_memr; 72 73 /* GPIO offsets */ 74 int sc_timebase; 75 }; 76 77 static MALLOC_DEFINE(M_MACIO, "macio", "macio device information"); 78 79 static int macio_probe(device_t); 80 static int macio_attach(device_t); 81 static int macio_print_child(device_t dev, device_t child); 82 static void macio_probe_nomatch(device_t, device_t); 83 static struct rman *macio_get_rman(device_t, int, u_int); 84 static struct resource *macio_alloc_resource(device_t, device_t, int, int *, 85 rman_res_t, rman_res_t, rman_res_t, 86 u_int); 87 static int macio_adjust_resource(device_t, device_t, struct resource *, 88 rman_res_t, rman_res_t); 89 static int macio_activate_resource(device_t, device_t, struct resource *); 90 static int macio_deactivate_resource(device_t, device_t, struct resource *); 91 static int macio_release_resource(device_t, device_t, struct resource *); 92 static int macio_map_resource(device_t, device_t, struct resource *, 93 struct resource_map_request *, 94 struct resource_map *); 95 static int macio_unmap_resource(device_t, device_t, struct resource *, 96 struct resource_map *); 97 static struct resource_list *macio_get_resource_list (device_t, device_t); 98 static ofw_bus_get_devinfo_t macio_get_devinfo; 99 #if !defined(__powerpc64__) && defined(SMP) 100 static void macio_freeze_timebase(device_t, bool); 101 #endif 102 103 /* 104 * Bus interface definition 105 */ 106 static device_method_t macio_methods[] = { 107 /* Device interface */ 108 DEVMETHOD(device_probe, macio_probe), 109 DEVMETHOD(device_attach, macio_attach), 110 DEVMETHOD(device_detach, bus_generic_detach), 111 DEVMETHOD(device_shutdown, bus_generic_shutdown), 112 DEVMETHOD(device_suspend, bus_generic_suspend), 113 DEVMETHOD(device_resume, bus_generic_resume), 114 115 /* Bus interface */ 116 DEVMETHOD(bus_print_child, macio_print_child), 117 DEVMETHOD(bus_probe_nomatch, macio_probe_nomatch), 118 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 119 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 120 121 DEVMETHOD(bus_get_rman, macio_get_rman), 122 DEVMETHOD(bus_alloc_resource, macio_alloc_resource), 123 DEVMETHOD(bus_adjust_resource, macio_adjust_resource), 124 DEVMETHOD(bus_release_resource, macio_release_resource), 125 DEVMETHOD(bus_activate_resource, macio_activate_resource), 126 DEVMETHOD(bus_deactivate_resource, macio_deactivate_resource), 127 DEVMETHOD(bus_map_resource, macio_map_resource), 128 DEVMETHOD(bus_unmap_resource, macio_unmap_resource), 129 DEVMETHOD(bus_get_resource_list, macio_get_resource_list), 130 131 DEVMETHOD(bus_child_pnpinfo, ofw_bus_gen_child_pnpinfo), 132 133 /* ofw_bus interface */ 134 DEVMETHOD(ofw_bus_get_devinfo, macio_get_devinfo), 135 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 136 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 137 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 138 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 139 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 140 { 0, 0 } 141 }; 142 143 static driver_t macio_pci_driver = { 144 "macio", 145 macio_methods, 146 sizeof(struct macio_softc) 147 }; 148 149 EARLY_DRIVER_MODULE(macio, pci, macio_pci_driver, 0, 0, BUS_PASS_BUS); 150 151 /* 152 * PCI ID search table 153 */ 154 static struct macio_pci_dev { 155 u_int32_t mpd_devid; 156 char *mpd_desc; 157 } macio_pci_devlist[] = { 158 { 0x0017106b, "Paddington I/O Controller" }, 159 { 0x0022106b, "KeyLargo I/O Controller" }, 160 { 0x0025106b, "Pangea I/O Controller" }, 161 { 0x003e106b, "Intrepid I/O Controller" }, 162 { 0x0041106b, "K2 KeyLargo I/O Controller" }, 163 { 0x004f106b, "Shasta I/O Controller" }, 164 { 0, NULL } 165 }; 166 167 /* 168 * Devices to exclude from the probe 169 * XXX some of these may be required in the future... 170 */ 171 #define MACIO_QUIRK_IGNORE 0x00000001 172 #define MACIO_QUIRK_CHILD_HAS_INTR 0x00000002 173 #define MACIO_QUIRK_USE_CHILD_REG 0x00000004 174 175 struct macio_quirk_entry { 176 const char *mq_name; 177 int mq_quirks; 178 }; 179 180 static struct macio_quirk_entry macio_quirks[] = { 181 { "escc-legacy", MACIO_QUIRK_IGNORE }, 182 { "timer", MACIO_QUIRK_IGNORE }, 183 { "escc", MACIO_QUIRK_CHILD_HAS_INTR }, 184 { "i2s", MACIO_QUIRK_CHILD_HAS_INTR | 185 MACIO_QUIRK_USE_CHILD_REG }, 186 { NULL, 0 } 187 }; 188 189 static int 190 macio_get_quirks(const char *name) 191 { 192 struct macio_quirk_entry *mqe; 193 194 for (mqe = macio_quirks; mqe->mq_name != NULL; mqe++) 195 if (strcmp(name, mqe->mq_name) == 0) 196 return (mqe->mq_quirks); 197 return (0); 198 } 199 200 /* 201 * Add an interrupt to the dev's resource list if present 202 */ 203 static void 204 macio_add_intr(phandle_t devnode, struct macio_devinfo *dinfo) 205 { 206 phandle_t iparent; 207 int *intr; 208 int i, nintr; 209 int icells; 210 211 if (dinfo->mdi_ninterrupts >= 6) { 212 printf("macio: device has more than 6 interrupts\n"); 213 return; 214 } 215 216 nintr = OF_getprop_alloc_multi(devnode, "interrupts", sizeof(*intr), 217 (void **)&intr); 218 if (nintr == -1) { 219 nintr = OF_getprop_alloc_multi(devnode, "AAPL,interrupts", 220 sizeof(*intr), (void **)&intr); 221 if (nintr == -1) 222 return; 223 } 224 225 if (intr[0] == -1) 226 return; 227 228 if (OF_getprop(devnode, "interrupt-parent", &iparent, sizeof(iparent)) 229 <= 0) 230 panic("Interrupt but no interrupt parent!\n"); 231 232 if (OF_getprop(OF_node_from_xref(iparent), "#interrupt-cells", &icells, 233 sizeof(icells)) <= 0) 234 icells = 1; 235 236 for (i = 0; i < nintr; i+=icells) { 237 u_int irq = MAP_IRQ(iparent, intr[i]); 238 239 resource_list_add(&dinfo->mdi_resources, SYS_RES_IRQ, 240 dinfo->mdi_ninterrupts, irq, irq, 1); 241 242 dinfo->mdi_interrupts[dinfo->mdi_ninterrupts] = irq; 243 dinfo->mdi_ninterrupts++; 244 } 245 } 246 247 static void 248 macio_add_reg(phandle_t devnode, struct macio_devinfo *dinfo) 249 { 250 struct macio_reg *reg, *regp; 251 phandle_t child; 252 char buf[8]; 253 int i, layout_id = 0, nreg, res; 254 255 nreg = OF_getprop_alloc_multi(devnode, "reg", sizeof(*reg), (void **)®); 256 if (nreg == -1) 257 return; 258 259 /* 260 * Some G5's have broken properties in the i2s-a area. If so we try 261 * to fix it. Right now we know of two different cases, one for 262 * sound layout-id 36 and the other one for sound layout-id 76. 263 * What is missing is the base address for the memory addresses. 264 * We take them from the parent node (i2s) and use the size 265 * information from the child. 266 */ 267 268 if (reg[0].mr_base == 0) { 269 child = OF_child(devnode); 270 while (child != 0) { 271 res = OF_getprop(child, "name", buf, sizeof(buf)); 272 if (res > 0 && strcmp(buf, "sound") == 0) 273 break; 274 child = OF_peer(child); 275 } 276 277 res = OF_getprop(child, "layout-id", &layout_id, 278 sizeof(layout_id)); 279 280 if (res > 0 && (layout_id == 36 || layout_id == 76)) { 281 res = OF_getprop_alloc_multi(OF_parent(devnode), "reg", 282 sizeof(*regp), (void **)®p); 283 reg[0] = regp[0]; 284 reg[1].mr_base = regp[1].mr_base; 285 reg[2].mr_base = regp[1].mr_base + reg[1].mr_size; 286 } 287 } 288 289 for (i = 0; i < nreg; i++) { 290 resource_list_add(&dinfo->mdi_resources, SYS_RES_MEMORY, i, 291 reg[i].mr_base, reg[i].mr_base + reg[i].mr_size, 292 reg[i].mr_size); 293 } 294 } 295 296 /* 297 * PCI probe 298 */ 299 static int 300 macio_probe(device_t dev) 301 { 302 int i; 303 u_int32_t devid; 304 305 devid = pci_get_devid(dev); 306 for (i = 0; macio_pci_devlist[i].mpd_desc != NULL; i++) { 307 if (devid == macio_pci_devlist[i].mpd_devid) { 308 device_set_desc(dev, macio_pci_devlist[i].mpd_desc); 309 return (0); 310 } 311 } 312 313 return (ENXIO); 314 } 315 316 /* 317 * PCI attach: scan Open Firmware child nodes, and attach these as children 318 * of the macio bus 319 */ 320 static int 321 macio_attach(device_t dev) 322 { 323 struct macio_softc *sc; 324 struct macio_devinfo *dinfo; 325 phandle_t root; 326 phandle_t child; 327 phandle_t subchild; 328 device_t cdev; 329 u_int reg[3]; 330 char compat[32]; 331 int error, quirks; 332 333 sc = device_get_softc(dev); 334 root = sc->sc_node = ofw_bus_get_node(dev); 335 336 /* 337 * Locate the device node and it's base address 338 */ 339 if (OF_getprop(root, "assigned-addresses", 340 reg, sizeof(reg)) < (ssize_t)sizeof(reg)) { 341 return (ENXIO); 342 } 343 344 /* Used later to see if we have to enable the I2S part. */ 345 OF_getprop(root, "compatible", compat, sizeof(compat)); 346 347 sc->sc_base = reg[2]; 348 sc->sc_size = MACIO_REG_SIZE; 349 350 sc->sc_memrid = PCIR_BAR(0); 351 sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 352 &sc->sc_memrid, RF_ACTIVE); 353 354 sc->sc_mem_rman.rm_type = RMAN_ARRAY; 355 sc->sc_mem_rman.rm_descr = "MacIO Device Memory"; 356 error = rman_init(&sc->sc_mem_rman); 357 if (error) { 358 device_printf(dev, "rman_init() failed. error = %d\n", error); 359 return (error); 360 } 361 error = rman_manage_region(&sc->sc_mem_rman, 0, sc->sc_size); 362 if (error) { 363 device_printf(dev, 364 "rman_manage_region() failed. error = %d\n", error); 365 return (error); 366 } 367 368 /* 369 * Iterate through the sub-devices 370 */ 371 for (child = OF_child(root); child != 0; child = OF_peer(child)) { 372 dinfo = malloc(sizeof(*dinfo), M_MACIO, M_WAITOK | M_ZERO); 373 if (ofw_bus_gen_setup_devinfo(&dinfo->mdi_obdinfo, child) != 374 0) { 375 free(dinfo, M_MACIO); 376 continue; 377 } 378 quirks = macio_get_quirks(dinfo->mdi_obdinfo.obd_name); 379 if ((quirks & MACIO_QUIRK_IGNORE) != 0) { 380 ofw_bus_gen_destroy_devinfo(&dinfo->mdi_obdinfo); 381 free(dinfo, M_MACIO); 382 continue; 383 } 384 resource_list_init(&dinfo->mdi_resources); 385 dinfo->mdi_ninterrupts = 0; 386 macio_add_intr(child, dinfo); 387 if ((quirks & MACIO_QUIRK_USE_CHILD_REG) != 0) 388 macio_add_reg(OF_child(child), dinfo); 389 else 390 macio_add_reg(child, dinfo); 391 if ((quirks & MACIO_QUIRK_CHILD_HAS_INTR) != 0) 392 for (subchild = OF_child(child); subchild != 0; 393 subchild = OF_peer(subchild)) 394 macio_add_intr(subchild, dinfo); 395 cdev = device_add_child(dev, NULL, DEVICE_UNIT_ANY); 396 if (cdev == NULL) { 397 device_printf(dev, "<%s>: device_add_child failed\n", 398 dinfo->mdi_obdinfo.obd_name); 399 resource_list_free(&dinfo->mdi_resources); 400 ofw_bus_gen_destroy_devinfo(&dinfo->mdi_obdinfo); 401 free(dinfo, M_MACIO); 402 continue; 403 } 404 device_set_ivars(cdev, dinfo); 405 406 /* Set FCRs to enable some devices */ 407 if (sc->sc_memr == NULL) 408 continue; 409 410 if (strcmp(ofw_bus_get_name(cdev), "bmac") == 0 || 411 (ofw_bus_get_compat(cdev) != NULL && 412 strcmp(ofw_bus_get_compat(cdev), "bmac+") == 0)) { 413 uint32_t fcr; 414 415 fcr = bus_read_4(sc->sc_memr, HEATHROW_FCR); 416 417 fcr |= FCR_ENET_ENABLE & ~FCR_ENET_RESET; 418 bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr); 419 DELAY(50000); 420 fcr |= FCR_ENET_RESET; 421 bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr); 422 DELAY(50000); 423 fcr &= ~FCR_ENET_RESET; 424 bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr); 425 DELAY(50000); 426 427 bus_write_4(sc->sc_memr, HEATHROW_FCR, fcr); 428 } 429 430 /* 431 * Make sure the I2S0 and the I2S0_CLK are enabled. 432 * On certain G5's they are not. 433 */ 434 if ((strcmp(ofw_bus_get_name(cdev), "i2s") == 0) && 435 (strcmp(compat, "K2-Keylargo") == 0)) { 436 uint32_t fcr1; 437 438 fcr1 = bus_read_4(sc->sc_memr, KEYLARGO_FCR1); 439 fcr1 |= FCR1_I2S0_CLK_ENABLE | FCR1_I2S0_ENABLE; 440 bus_write_4(sc->sc_memr, KEYLARGO_FCR1, fcr1); 441 } 442 } 443 444 #if !defined(__powerpc64__) && defined(SMP) 445 /* 446 * Detect an SMP G4 machine. 447 * 448 * On SMP G4, timebase freeze is via a GPIO on macio. 449 * 450 * When we are on an SMP G4, we need to install a handler to 451 * perform timebase freeze/unfreeze on behalf of the platform. 452 */ 453 if ((child = OF_finddevice("/cpus/PowerPC,G4@0")) != -1 && 454 OF_peer(child) != -1) { 455 if (OF_getprop(child, "timebase-enable", &sc->sc_timebase, 456 sizeof(sc->sc_timebase)) <= 0) 457 sc->sc_timebase = KEYLARGO_GPIO_BASE + 0x09; 458 powermac_register_timebase(dev, macio_freeze_timebase); 459 device_printf(dev, "GPIO timebase control at 0x%x\n", 460 sc->sc_timebase); 461 } 462 #endif 463 464 return (bus_generic_attach(dev)); 465 } 466 467 static int 468 macio_print_child(device_t dev, device_t child) 469 { 470 struct macio_devinfo *dinfo; 471 struct resource_list *rl; 472 int retval = 0; 473 474 dinfo = device_get_ivars(child); 475 rl = &dinfo->mdi_resources; 476 477 retval += bus_print_child_header(dev, child); 478 479 retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx"); 480 retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd"); 481 482 retval += bus_print_child_footer(dev, child); 483 484 return (retval); 485 } 486 487 static void 488 macio_probe_nomatch(device_t dev, device_t child) 489 { 490 struct macio_devinfo *dinfo; 491 struct resource_list *rl; 492 const char *type; 493 494 if (bootverbose) { 495 dinfo = device_get_ivars(child); 496 rl = &dinfo->mdi_resources; 497 498 if ((type = ofw_bus_get_type(child)) == NULL) 499 type = "(unknown)"; 500 device_printf(dev, "<%s, %s>", type, ofw_bus_get_name(child)); 501 resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx"); 502 resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd"); 503 printf(" (no driver attached)\n"); 504 } 505 } 506 507 static struct rman * 508 macio_get_rman(device_t bus, int type, u_int flags) 509 { 510 struct macio_softc *sc; 511 512 sc = device_get_softc(bus); 513 switch (type) { 514 case SYS_RES_MEMORY: 515 case SYS_RES_IOPORT: 516 return (&sc->sc_mem_rman); 517 default: 518 return (NULL); 519 } 520 } 521 522 static struct resource * 523 macio_alloc_resource(device_t bus, device_t child, int type, int *rid, 524 rman_res_t start, rman_res_t end, rman_res_t count, 525 u_int flags) 526 { 527 rman_res_t adjstart, adjend, adjcount; 528 struct macio_devinfo *dinfo; 529 struct resource_list_entry *rle; 530 531 dinfo = device_get_ivars(child); 532 533 switch (type) { 534 case SYS_RES_MEMORY: 535 case SYS_RES_IOPORT: 536 rle = resource_list_find(&dinfo->mdi_resources, SYS_RES_MEMORY, 537 *rid); 538 if (rle == NULL) { 539 device_printf(bus, "no rle for %s memory %d\n", 540 device_get_nameunit(child), *rid); 541 return (NULL); 542 } 543 544 if (start < rle->start) 545 adjstart = rle->start; 546 else if (start > rle->end) 547 adjstart = rle->end; 548 else 549 adjstart = start; 550 551 if (end < rle->start) 552 adjend = rle->start; 553 else if (end > rle->end) 554 adjend = rle->end; 555 else 556 adjend = end; 557 558 adjcount = adjend - adjstart; 559 560 return (bus_generic_rman_alloc_resource(bus, child, type, rid, 561 adjstart, adjend, adjcount, flags)); 562 563 case SYS_RES_IRQ: 564 /* Check for passthrough from subattachments like macgpio */ 565 if (device_get_parent(child) != bus) 566 return BUS_ALLOC_RESOURCE(device_get_parent(bus), child, 567 type, rid, start, end, count, flags); 568 569 rle = resource_list_find(&dinfo->mdi_resources, SYS_RES_IRQ, 570 *rid); 571 if (rle == NULL) { 572 if (dinfo->mdi_ninterrupts >= 6) { 573 device_printf(bus, 574 "%s has more than 6 interrupts\n", 575 device_get_nameunit(child)); 576 return (NULL); 577 } 578 resource_list_add(&dinfo->mdi_resources, SYS_RES_IRQ, 579 dinfo->mdi_ninterrupts, start, start, 1); 580 581 dinfo->mdi_interrupts[dinfo->mdi_ninterrupts] = start; 582 dinfo->mdi_ninterrupts++; 583 } 584 585 return (resource_list_alloc(&dinfo->mdi_resources, bus, child, 586 type, rid, start, end, count, flags)); 587 588 default: 589 device_printf(bus, "unknown resource request from %s\n", 590 device_get_nameunit(child)); 591 return (NULL); 592 } 593 } 594 595 static int 596 macio_adjust_resource(device_t bus, device_t child, struct resource *r, 597 rman_res_t start, rman_res_t end) 598 { 599 switch (rman_get_type(r)) { 600 case SYS_RES_IOPORT: 601 case SYS_RES_MEMORY: 602 return (bus_generic_rman_adjust_resource(bus, child, r, start, 603 end)); 604 case SYS_RES_IRQ: 605 return (bus_generic_adjust_resource(bus, child, r, start, end)); 606 default: 607 return (EINVAL); 608 } 609 } 610 611 static int 612 macio_release_resource(device_t bus, device_t child, struct resource *res) 613 { 614 switch (rman_get_type(res)) { 615 case SYS_RES_IOPORT: 616 case SYS_RES_MEMORY: 617 return (bus_generic_rman_release_resource(bus, child, res)); 618 case SYS_RES_IRQ: 619 return (bus_generic_rl_release_resource(bus, child, res)); 620 default: 621 return (EINVAL); 622 } 623 } 624 625 static int 626 macio_activate_resource(device_t bus, device_t child, struct resource *res) 627 { 628 switch (rman_get_type(res)) { 629 case SYS_RES_IOPORT: 630 case SYS_RES_MEMORY: 631 return (bus_generic_rman_activate_resource(bus, child, res)); 632 case SYS_RES_IRQ: 633 return (bus_generic_activate_resource(bus, child, res)); 634 default: 635 return (EINVAL); 636 } 637 } 638 639 static int 640 macio_deactivate_resource(device_t bus, device_t child, struct resource *res) 641 { 642 switch (rman_get_type(res)) { 643 case SYS_RES_IOPORT: 644 case SYS_RES_MEMORY: 645 return (bus_generic_rman_deactivate_resource(bus, child, res)); 646 case SYS_RES_IRQ: 647 return (bus_generic_deactivate_resource(bus, child, res)); 648 default: 649 return (EINVAL); 650 } 651 } 652 653 static int 654 macio_map_resource(device_t bus, device_t child, struct resource *r, 655 struct resource_map_request *argsp, struct resource_map *map) 656 { 657 struct resource_map_request args; 658 struct macio_softc *sc; 659 rman_res_t length, start; 660 int error; 661 662 /* Resources must be active to be mapped. */ 663 if (!(rman_get_flags(r) & RF_ACTIVE)) 664 return (ENXIO); 665 666 /* Mappings are only supported on I/O and memory resources. */ 667 switch (rman_get_type(r)) { 668 case SYS_RES_IOPORT: 669 case SYS_RES_MEMORY: 670 break; 671 default: 672 return (EINVAL); 673 } 674 675 resource_init_map_request(&args); 676 error = resource_validate_map_request(r, argsp, &args, &start, &length); 677 if (error) 678 return (error); 679 680 if (bootverbose) 681 printf("nexus mapdev: start %jx, len %jd\n", 682 (uintmax_t)start, (uintmax_t)length); 683 684 sc = device_get_softc(bus); 685 map->r_vaddr = pmap_mapdev_attr((vm_paddr_t)start + sc->sc_base, 686 length, args.memattr); 687 if (map->r_vaddr == NULL) 688 return (ENOMEM); 689 map->r_size = length; 690 map->r_bustag = &bs_le_tag; 691 map->r_bushandle = (bus_space_handle_t)map->r_vaddr; 692 return (0); 693 } 694 695 static int 696 macio_unmap_resource(device_t bus, device_t child, struct resource *r, 697 struct resource_map *map) 698 { 699 /* 700 * If this is a memory resource, unmap it. 701 */ 702 switch (rman_get_type(r)) { 703 case SYS_RES_IOPORT: 704 case SYS_RES_MEMORY: 705 pmap_unmapdev(map->r_vaddr, map->r_size); 706 break; 707 default: 708 return (EINVAL); 709 } 710 return (0); 711 } 712 713 static struct resource_list * 714 macio_get_resource_list (device_t dev, device_t child) 715 { 716 struct macio_devinfo *dinfo; 717 718 dinfo = device_get_ivars(child); 719 return (&dinfo->mdi_resources); 720 } 721 722 static const struct ofw_bus_devinfo * 723 macio_get_devinfo(device_t dev, device_t child) 724 { 725 struct macio_devinfo *dinfo; 726 727 dinfo = device_get_ivars(child); 728 return (&dinfo->mdi_obdinfo); 729 } 730 731 int 732 macio_enable_wireless(device_t dev, bool enable) 733 { 734 struct macio_softc *sc = device_get_softc(dev); 735 uint32_t x; 736 737 if (enable) { 738 x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2); 739 x |= 0x4; 740 bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x); 741 742 /* Enable card slot. */ 743 bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0f, 5); 744 DELAY(1000); 745 bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0f, 4); 746 DELAY(1000); 747 x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2); 748 x &= ~0x80000000; 749 750 bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x); 751 /* out8(gpio + 0x10, 4); */ 752 753 bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0b, 0); 754 bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0a, 0x28); 755 bus_write_1(sc->sc_memr, KEYLARGO_EXTINT_GPIO_REG_BASE + 0x0d, 0x28); 756 bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0d, 0x28); 757 bus_write_1(sc->sc_memr, KEYLARGO_GPIO_BASE + 0x0e, 0x28); 758 bus_write_4(sc->sc_memr, 0x1c000, 0); 759 760 /* Initialize the card. */ 761 bus_write_4(sc->sc_memr, 0x1a3e0, 0x41); 762 x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2); 763 x |= 0x80000000; 764 bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x); 765 } else { 766 x = bus_read_4(sc->sc_memr, KEYLARGO_FCR2); 767 x &= ~0x4; 768 bus_write_4(sc->sc_memr, KEYLARGO_FCR2, x); 769 /* out8(gpio + 0x10, 0); */ 770 } 771 772 return (0); 773 } 774 775 #if !defined(__powerpc64__) && defined(SMP) 776 static void 777 macio_freeze_timebase(device_t dev, bool freeze) 778 { 779 struct macio_softc *sc = device_get_softc(dev); 780 781 if (freeze) { 782 bus_write_1(sc->sc_memr, sc->sc_timebase, 4); 783 } else { 784 bus_write_1(sc->sc_memr, sc->sc_timebase, 0); 785 } 786 bus_read_1(sc->sc_memr, sc->sc_timebase); 787 } 788 #endif 789