hw/omap_gpio.c

   1 /*
   2  * TI OMAP processors GPIO emulation.
   3  *
   4  * Copyright (C) 2006-2008 Andrzej Zaborowski  <balrog@zabor.org>
   5  * Copyright (C) 2007-2009 Nokia Corporation
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 or
  10  * (at your option) version 3 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "hw.h"
  22 #include "omap.h"
  23 #include "sysbus.h"
  24
  25 struct omap_gpio_s {
  26     qemu_irq irq;
  27     qemu_irq handler[16];
  28
  29     uint16_t inputs;
  30     uint16_t outputs;
  31     uint16_t dir;
  32     uint16_t edge;
  33     uint16_t mask;
  34     uint16_t ints;
  35     uint16_t pins;
  36 };
  37
  38 struct omap_gpif_s {
  39     SysBusDevice busdev;
  40     MemoryRegion iomem;
  41     int mpu_model;
  42     void *clk;
  43     struct omap_gpio_s omap1;
  44 };
  45
  46 /* General-Purpose I/O of OMAP1 */
  47 static void omap_gpio_set(void *opaque, int line, int level)
  48 {
  49     struct omap_gpio_s *s = &((struct omap_gpif_s *) opaque)->omap1;
  50     uint16_t prev = s->inputs;
  51
  52     if (level)
  53         s->inputs |= 1 << line;
  54     else
  55         s->inputs &= ~(1 << line);
  56
  57     if (((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) &
  58                     (1 << line) & s->dir & ~s->mask) {
  59         s->ints |= 1 << line;
  60         qemu_irq_raise(s->irq);
  61     }
  62 }
  63
  64 static uint64_t omap_gpio_read(void *opaque, hwaddr addr,
  65                                unsigned size)
  66 {
  67     struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
  68     int offset = addr & OMAP_MPUI_REG_MASK;
  69
  70     if (size != 2) {
  71         return omap_badwidth_read16(opaque, addr);
  72     }
  73
  74     switch (offset) {
  75     case 0x00:  /* DATA_INPUT */
  76         return s->inputs & s->pins;
  77
  78     case 0x04:  /* DATA_OUTPUT */
  79         return s->outputs;
  80
  81     case 0x08:  /* DIRECTION_CONTROL */
  82         return s->dir;
  83
  84     case 0x0c:  /* INTERRUPT_CONTROL */
  85         return s->edge;
  86
  87     case 0x10:  /* INTERRUPT_MASK */
  88         return s->mask;
  89
  90     case 0x14:  /* INTERRUPT_STATUS */
  91         return s->ints;
  92
  93     case 0x18:  /* PIN_CONTROL (not in OMAP310) */
  94         OMAP_BAD_REG(addr);
  95         return s->pins;
  96     }
  97
  98     OMAP_BAD_REG(addr);
  99     return 0;
 100 }
 101
 102 static void omap_gpio_write(void *opaque, hwaddr addr,
 103                             uint64_t value, unsigned size)
 104 {
 105     struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
 106     int offset = addr & OMAP_MPUI_REG_MASK;
 107     uint16_t diff;
 108     int ln;
 109
 110     if (size != 2) {
 111         return omap_badwidth_write16(opaque, addr, value);
 112     }
 113
 114     switch (offset) {
 115     case 0x00:  /* DATA_INPUT */
 116         OMAP_RO_REG(addr);
 117         return;
 118
 119     case 0x04:  /* DATA_OUTPUT */
 120         diff = (s->outputs ^ value) & ~s->dir;
 121         s->outputs = value;
 122         while ((ln = ffs(diff))) {
 123             ln --;
 124             if (s->handler[ln])
 125                 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
 126             diff &= ~(1 << ln);
 127         }
 128         break;
 129
 130     case 0x08:  /* DIRECTION_CONTROL */
 131         diff = s->outputs & (s->dir ^ value);
 132         s->dir = value;
 133
 134         value = s->outputs & ~s->dir;
 135         while ((ln = ffs(diff))) {
 136             ln --;
 137             if (s->handler[ln])
 138                 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
 139             diff &= ~(1 << ln);
 140         }
 141         break;
 142
 143     case 0x0c:  /* INTERRUPT_CONTROL */
 144         s->edge = value;
 145         break;
 146
 147     case 0x10:  /* INTERRUPT_MASK */
 148         s->mask = value;
 149         break;
 150
 151     case 0x14:  /* INTERRUPT_STATUS */
 152         s->ints &= ~value;
 153         if (!s->ints)
 154             qemu_irq_lower(s->irq);
 155         break;
 156
 157     case 0x18:  /* PIN_CONTROL (not in OMAP310 TRM) */
 158         OMAP_BAD_REG(addr);
 159         s->pins = value;
 160         break;
 161
 162     default:
 163         OMAP_BAD_REG(addr);
 164         return;
 165     }
 166 }
 167
 168 /* *Some* sources say the memory region is 32-bit.  */
 169 static const MemoryRegionOps omap_gpio_ops = {
 170     .read = omap_gpio_read,
 171     .write = omap_gpio_write,
 172     .endianness = DEVICE_NATIVE_ENDIAN,
 173 };
 174
 175 static void omap_gpio_reset(struct omap_gpio_s *s)
 176 {
 177     s->inputs = 0;
 178     s->outputs = ~0;
 179     s->dir = ~0;
 180     s->edge = ~0;
 181     s->mask = ~0;
 182     s->ints = 0;
 183     s->pins = ~0;
 184 }
 185
 186 struct omap2_gpio_s {
 187     qemu_irq irq[2];
 188     qemu_irq wkup;
 189     qemu_irq *handler;
 190     MemoryRegion iomem;
 191
 192     uint8_t revision;
 193     uint8_t config[2];
 194     uint32_t inputs;
 195     uint32_t outputs;
 196     uint32_t dir;
 197     uint32_t level[2];
 198     uint32_t edge[2];
 199     uint32_t mask[2];
 200     uint32_t wumask;
 201     uint32_t ints[2];
 202     uint32_t debounce;
 203     uint8_t delay;
 204 };
 205
 206 struct omap2_gpif_s {
 207     SysBusDevice busdev;
 208     MemoryRegion iomem;
 209     int mpu_model;
 210     void *iclk;
 211     void *fclk[6];
 212     int modulecount;
 213     struct omap2_gpio_s *modules;
 214     qemu_irq *handler;
 215     int autoidle;
 216     int gpo;
 217 };
 218
 219 /* General-Purpose Interface of OMAP2/3 */
 220 static inline void omap2_gpio_module_int_update(struct omap2_gpio_s *s,
 221                                                 int line)
 222 {
 223     qemu_set_irq(s->irq[line], s->ints[line] & s->mask[line]);
 224 }
 225
 226 static void omap2_gpio_module_wake(struct omap2_gpio_s *s, int line)
 227 {
 228     if (!(s->config[0] & (1 << 2)))                     /* ENAWAKEUP */
 229         return;
 230     if (!(s->config[0] & (3 << 3)))                     /* Force Idle */
 231         return;
 232     if (!(s->wumask & (1 << line)))
 233         return;
 234
 235     qemu_irq_raise(s->wkup);
 236 }
 237
 238 static inline void omap2_gpio_module_out_update(struct omap2_gpio_s *s,
 239                 uint32_t diff)
 240 {
 241     int ln;
 242
 243     s->outputs ^= diff;
 244     diff &= ~s->dir;
 245     while ((ln = ffs(diff))) {
 246         ln --;
 247         qemu_set_irq(s->handler[ln], (s->outputs >> ln) & 1);
 248         diff &= ~(1 << ln);
 249     }
 250 }
 251
 252 static void omap2_gpio_module_level_update(struct omap2_gpio_s *s, int line)
 253 {
 254     s->ints[line] |= s->dir &
 255             ((s->inputs & s->level[1]) | (~s->inputs & s->level[0]));
 256     omap2_gpio_module_int_update(s, line);
 257 }
 258
 259 static inline void omap2_gpio_module_int(struct omap2_gpio_s *s, int line)
 260 {
 261     s->ints[0] |= 1 << line;
 262     omap2_gpio_module_int_update(s, 0);
 263     s->ints[1] |= 1 << line;
 264     omap2_gpio_module_int_update(s, 1);
 265     omap2_gpio_module_wake(s, line);
 266 }
 267
 268 static void omap2_gpio_set(void *opaque, int line, int level)
 269 {
 270     struct omap2_gpif_s *p = opaque;
 271     struct omap2_gpio_s *s = &p->modules[line >> 5];
 272
 273     line &= 31;
 274     if (level) {
 275         if (s->dir & (1 << line) & ((~s->inputs & s->edge[0]) | s->level[1]))
 276             omap2_gpio_module_int(s, line);
 277         s->inputs |= 1 << line;
 278     } else {
 279         if (s->dir & (1 << line) & ((s->inputs & s->edge[1]) | s->level[0]))
 280             omap2_gpio_module_int(s, line);
 281         s->inputs &= ~(1 << line);
 282     }
 283 }
 284
 285 static void omap2_gpio_module_reset(struct omap2_gpio_s *s)
 286 {
 287     s->config[0] = 0;
 288     s->config[1] = 2;
 289     s->ints[0] = 0;
 290     s->ints[1] = 0;
 291     s->mask[0] = 0;
 292     s->mask[1] = 0;
 293     s->wumask = 0;
 294     s->dir = ~0;
 295     s->level[0] = 0;
 296     s->level[1] = 0;
 297     s->edge[0] = 0;
 298     s->edge[1] = 0;
 299     s->debounce = 0;
 300     s->delay = 0;
 301 }
 302
 303 static uint32_t omap2_gpio_module_read(void *opaque, hwaddr addr)
 304 {
 305     struct omap2_gpio_s *s = (struct omap2_gpio_s *) opaque;
 306
 307     switch (addr) {
 308     case 0x00:  /* GPIO_REVISION */
 309         return s->revision;
 310
 311     case 0x10:  /* GPIO_SYSCONFIG */
 312         return s->config[0];
 313
 314     case 0x14:  /* GPIO_SYSSTATUS */
 315         return 0x01;
 316
 317     case 0x18:  /* GPIO_IRQSTATUS1 */
 318         return s->ints[0];
 319
 320     case 0x1c:  /* GPIO_IRQENABLE1 */
 321     case 0x60:  /* GPIO_CLEARIRQENABLE1 */
 322     case 0x64:  /* GPIO_SETIRQENABLE1 */
 323         return s->mask[0];
 324
 325     case 0x20:  /* GPIO_WAKEUPENABLE */
 326     case 0x80:  /* GPIO_CLEARWKUENA */
 327     case 0x84:  /* GPIO_SETWKUENA */
 328         return s->wumask;
 329
 330     case 0x28:  /* GPIO_IRQSTATUS2 */
 331         return s->ints[1];
 332
 333     case 0x2c:  /* GPIO_IRQENABLE2 */
 334     case 0x70:  /* GPIO_CLEARIRQENABLE2 */
 335     case 0x74:  /* GPIO_SETIREQNEABLE2 */
 336         return s->mask[1];
 337
 338     case 0x30:  /* GPIO_CTRL */
 339         return s->config[1];
 340
 341     case 0x34:  /* GPIO_OE */
 342         return s->dir;
 343
 344     case 0x38:  /* GPIO_DATAIN */
 345         return s->inputs;
 346
 347     case 0x3c:  /* GPIO_DATAOUT */
 348     case 0x90:  /* GPIO_CLEARDATAOUT */
 349     case 0x94:  /* GPIO_SETDATAOUT */
 350         return s->outputs;
 351
 352     case 0x40:  /* GPIO_LEVELDETECT0 */
 353         return s->level[0];
 354
 355     case 0x44:  /* GPIO_LEVELDETECT1 */
 356         return s->level[1];
 357
 358     case 0x48:  /* GPIO_RISINGDETECT */
 359         return s->edge[0];
 360
 361     case 0x4c:  /* GPIO_FALLINGDETECT */
 362         return s->edge[1];
 363
 364     case 0x50:  /* GPIO_DEBOUNCENABLE */
 365         return s->debounce;
 366
 367     case 0x54:  /* GPIO_DEBOUNCINGTIME */
 368         return s->delay;
 369     }
 370
 371     OMAP_BAD_REG(addr);
 372     return 0;
 373 }
 374
 375 static void omap2_gpio_module_write(void *opaque, hwaddr addr,
 376                 uint32_t value)
 377 {
 378     struct omap2_gpio_s *s = (struct omap2_gpio_s *) opaque;
 379     uint32_t diff;
 380     int ln;
 381
 382     switch (addr) {
 383     case 0x00:  /* GPIO_REVISION */
 384     case 0x14:  /* GPIO_SYSSTATUS */
 385     case 0x38:  /* GPIO_DATAIN */
 386         OMAP_RO_REG(addr);
 387         break;
 388
 389     case 0x10:  /* GPIO_SYSCONFIG */
 390         if (((value >> 3) & 3) == 3)
 391             fprintf(stderr, "%s: bad IDLEMODE value\n", __FUNCTION__);
 392         if (value & 2)
 393             omap2_gpio_module_reset(s);
 394         s->config[0] = value & 0x1d;
 395         break;
 396
 397     case 0x18:  /* GPIO_IRQSTATUS1 */
 398         if (s->ints[0] & value) {
 399             s->ints[0] &= ~value;
 400             omap2_gpio_module_level_update(s, 0);
 401         }
 402         break;
 403
 404     case 0x1c:  /* GPIO_IRQENABLE1 */
 405         s->mask[0] = value;
 406         omap2_gpio_module_int_update(s, 0);
 407         break;
 408
 409     case 0x20:  /* GPIO_WAKEUPENABLE */
 410         s->wumask = value;
 411         break;
 412
 413     case 0x28:  /* GPIO_IRQSTATUS2 */
 414         if (s->ints[1] & value) {
 415             s->ints[1] &= ~value;
 416             omap2_gpio_module_level_update(s, 1);
 417         }
 418         break;
 419
 420     case 0x2c:  /* GPIO_IRQENABLE2 */
 421         s->mask[1] = value;
 422         omap2_gpio_module_int_update(s, 1);
 423         break;
 424
 425     case 0x30:  /* GPIO_CTRL */
 426         s->config[1] = value & 7;
 427         break;
 428
 429     case 0x34:  /* GPIO_OE */
 430         diff = s->outputs & (s->dir ^ value);
 431         s->dir = value;
 432
 433         value = s->outputs & ~s->dir;
 434         while ((ln = ffs(diff))) {
 435             diff &= ~(1 <<-- ln);
 436             qemu_set_irq(s->handler[ln], (value >> ln) & 1);
 437         }
 438
 439         omap2_gpio_module_level_update(s, 0);
 440         omap2_gpio_module_level_update(s, 1);
 441         break;
 442
 443     case 0x3c:  /* GPIO_DATAOUT */
 444         omap2_gpio_module_out_update(s, s->outputs ^ value);
 445         break;
 446
 447     case 0x40:  /* GPIO_LEVELDETECT0 */
 448         s->level[0] = value;
 449         omap2_gpio_module_level_update(s, 0);
 450         omap2_gpio_module_level_update(s, 1);
 451         break;
 452
 453     case 0x44:  /* GPIO_LEVELDETECT1 */
 454         s->level[1] = value;
 455         omap2_gpio_module_level_update(s, 0);
 456         omap2_gpio_module_level_update(s, 1);
 457         break;
 458
 459     case 0x48:  /* GPIO_RISINGDETECT */
 460         s->edge[0] = value;
 461         break;
 462
 463     case 0x4c:  /* GPIO_FALLINGDETECT */
 464         s->edge[1] = value;
 465         break;
 466
 467     case 0x50:  /* GPIO_DEBOUNCENABLE */
 468         s->debounce = value;
 469         break;
 470
 471     case 0x54:  /* GPIO_DEBOUNCINGTIME */
 472         s->delay = value;
 473         break;
 474
 475     case 0x60:  /* GPIO_CLEARIRQENABLE1 */
 476         s->mask[0] &= ~value;
 477         omap2_gpio_module_int_update(s, 0);
 478         break;
 479
 480     case 0x64:  /* GPIO_SETIRQENABLE1 */
 481         s->mask[0] |= value;
 482         omap2_gpio_module_int_update(s, 0);
 483         break;
 484
 485     case 0x70:  /* GPIO_CLEARIRQENABLE2 */
 486         s->mask[1] &= ~value;
 487         omap2_gpio_module_int_update(s, 1);
 488         break;
 489
 490     case 0x74:  /* GPIO_SETIREQNEABLE2 */
 491         s->mask[1] |= value;
 492         omap2_gpio_module_int_update(s, 1);
 493         break;
 494
 495     case 0x80:  /* GPIO_CLEARWKUENA */
 496         s->wumask &= ~value;
 497         break;
 498
 499     case 0x84:  /* GPIO_SETWKUENA */
 500         s->wumask |= value;
 501         break;
 502
 503     case 0x90:  /* GPIO_CLEARDATAOUT */
 504         omap2_gpio_module_out_update(s, s->outputs & value);
 505         break;
 506
 507     case 0x94:  /* GPIO_SETDATAOUT */
 508         omap2_gpio_module_out_update(s, ~s->outputs & value);
 509         break;
 510
 511     default:
 512         OMAP_BAD_REG(addr);
 513         return;
 514     }
 515 }
 516
 517 static uint32_t omap2_gpio_module_readp(void *opaque, hwaddr addr)
 518 {
 519     return omap2_gpio_module_read(opaque, addr & ~3) >> ((addr & 3) << 3);
 520 }
 521
 522 static void omap2_gpio_module_writep(void *opaque, hwaddr addr,
 523                 uint32_t value)
 524 {
 525     uint32_t cur = 0;
 526     uint32_t mask = 0xffff;
 527
 528     switch (addr & ~3) {
 529     case 0x00:  /* GPIO_REVISION */
 530     case 0x14:  /* GPIO_SYSSTATUS */
 531     case 0x38:  /* GPIO_DATAIN */
 532         OMAP_RO_REG(addr);
 533         break;
 534
 535     case 0x10:  /* GPIO_SYSCONFIG */
 536     case 0x1c:  /* GPIO_IRQENABLE1 */
 537     case 0x20:  /* GPIO_WAKEUPENABLE */
 538     case 0x2c:  /* GPIO_IRQENABLE2 */
 539     case 0x30:  /* GPIO_CTRL */
 540     case 0x34:  /* GPIO_OE */
 541     case 0x3c:  /* GPIO_DATAOUT */
 542     case 0x40:  /* GPIO_LEVELDETECT0 */
 543     case 0x44:  /* GPIO_LEVELDETECT1 */
 544     case 0x48:  /* GPIO_RISINGDETECT */
 545     case 0x4c:  /* GPIO_FALLINGDETECT */
 546     case 0x50:  /* GPIO_DEBOUNCENABLE */
 547     case 0x54:  /* GPIO_DEBOUNCINGTIME */
 548         cur = omap2_gpio_module_read(opaque, addr & ~3) &
 549                 ~(mask << ((addr & 3) << 3));
 550
 551         /* Fall through.  */
 552     case 0x18:  /* GPIO_IRQSTATUS1 */
 553     case 0x28:  /* GPIO_IRQSTATUS2 */
 554     case 0x60:  /* GPIO_CLEARIRQENABLE1 */
 555     case 0x64:  /* GPIO_SETIRQENABLE1 */
 556     case 0x70:  /* GPIO_CLEARIRQENABLE2 */
 557     case 0x74:  /* GPIO_SETIREQNEABLE2 */
 558     case 0x80:  /* GPIO_CLEARWKUENA */
 559     case 0x84:  /* GPIO_SETWKUENA */
 560     case 0x90:  /* GPIO_CLEARDATAOUT */
 561     case 0x94:  /* GPIO_SETDATAOUT */
 562         value <<= (addr & 3) << 3;
 563         omap2_gpio_module_write(opaque, addr, cur | value);
 564         break;
 565
 566     default:
 567         OMAP_BAD_REG(addr);
 568         return;
 569     }
 570 }
 571
 572 static const MemoryRegionOps omap2_gpio_module_ops = {
 573     .old_mmio = {
 574         .read = {
 575             omap2_gpio_module_readp,
 576             omap2_gpio_module_readp,
 577             omap2_gpio_module_read,
 578         },
 579         .write = {
 580             omap2_gpio_module_writep,
 581             omap2_gpio_module_writep,
 582             omap2_gpio_module_write,
 583         },
 584     },
 585     .endianness = DEVICE_NATIVE_ENDIAN,
 586 };
 587
 588 static void omap_gpif_reset(DeviceState *dev)
 589 {
 590     struct omap_gpif_s *s = FROM_SYSBUS(struct omap_gpif_s,
 591                     sysbus_from_qdev(dev));
 592     omap_gpio_reset(&s->omap1);
 593 }
 594
 595 static void omap2_gpif_reset(DeviceState *dev)
 596 {
 597     int i;
 598     struct omap2_gpif_s *s = FROM_SYSBUS(struct omap2_gpif_s,
 599                     sysbus_from_qdev(dev));
 600     for (i = 0; i < s->modulecount; i++) {
 601         omap2_gpio_module_reset(&s->modules[i]);
 602     }
 603     s->autoidle = 0;
 604     s->gpo = 0;
 605 }
 606
 607 static uint64_t omap2_gpif_top_read(void *opaque, hwaddr addr,
 608                                     unsigned size)
 609 {
 610     struct omap2_gpif_s *s = (struct omap2_gpif_s *) opaque;
 611
 612     switch (addr) {
 613     case 0x00:  /* IPGENERICOCPSPL_REVISION */
 614         return 0x18;
 615
 616     case 0x10:  /* IPGENERICOCPSPL_SYSCONFIG */
 617         return s->autoidle;
 618
 619     case 0x14:  /* IPGENERICOCPSPL_SYSSTATUS */
 620         return 0x01;
 621
 622     case 0x18:  /* IPGENERICOCPSPL_IRQSTATUS */
 623         return 0x00;
 624
 625     case 0x40:  /* IPGENERICOCPSPL_GPO */
 626         return s->gpo;
 627
 628     case 0x50:  /* IPGENERICOCPSPL_GPI */
 629         return 0x00;
 630     }
 631
 632     OMAP_BAD_REG(addr);
 633     return 0;
 634 }
 635
 636 static void omap2_gpif_top_write(void *opaque, hwaddr addr,
 637                                  uint64_t value, unsigned size)
 638 {
 639     struct omap2_gpif_s *s = (struct omap2_gpif_s *) opaque;
 640
 641     switch (addr) {
 642     case 0x00:  /* IPGENERICOCPSPL_REVISION */
 643     case 0x14:  /* IPGENERICOCPSPL_SYSSTATUS */
 644     case 0x18:  /* IPGENERICOCPSPL_IRQSTATUS */
 645     case 0x50:  /* IPGENERICOCPSPL_GPI */
 646         OMAP_RO_REG(addr);
 647         break;
 648
 649     case 0x10:  /* IPGENERICOCPSPL_SYSCONFIG */
 650         if (value & (1 << 1))                                   /* SOFTRESET */
 651             omap2_gpif_reset(&s->busdev.qdev);
 652         s->autoidle = value & 1;
 653         break;
 654
 655     case 0x40:  /* IPGENERICOCPSPL_GPO */
 656         s->gpo = value & 1;
 657         break;
 658
 659     default:
 660         OMAP_BAD_REG(addr);
 661         return;
 662     }
 663 }
 664
 665 static const MemoryRegionOps omap2_gpif_top_ops = {
 666     .read = omap2_gpif_top_read,
 667     .write = omap2_gpif_top_write,
 668     .endianness = DEVICE_NATIVE_ENDIAN,
 669 };
 670
 671 static int omap_gpio_init(SysBusDevice *dev)
 672 {
 673     struct omap_gpif_s *s = FROM_SYSBUS(struct omap_gpif_s, dev);
 674     if (!s->clk) {
 675         hw_error("omap-gpio: clk not connected\n");
 676     }
 677     qdev_init_gpio_in(&dev->qdev, omap_gpio_set, 16);
 678     qdev_init_gpio_out(&dev->qdev, s->omap1.handler, 16);
 679     sysbus_init_irq(dev, &s->omap1.irq);
 680     memory_region_init_io(&s->iomem, &omap_gpio_ops, &s->omap1,
 681                           "omap.gpio", 0x1000);
 682     sysbus_init_mmio(dev, &s->iomem);
 683     return 0;
 684 }
 685
 686 static int omap2_gpio_init(SysBusDevice *dev)
 687 {
 688     int i;
 689     struct omap2_gpif_s *s = FROM_SYSBUS(struct omap2_gpif_s, dev);
 690     if (!s->iclk) {
 691         hw_error("omap2-gpio: iclk not connected\n");
 692     }
 693     if (s->mpu_model < omap3430) {
 694         s->modulecount = (s->mpu_model < omap2430) ? 4 : 5;
 695         memory_region_init_io(&s->iomem, &omap2_gpif_top_ops, s,
 696                               "omap2.gpio", 0x1000);
 697         sysbus_init_mmio(dev, &s->iomem);
 698     } else {
 699         s->modulecount = 6;
 700     }
 701     s->modules = g_malloc0(s->modulecount * sizeof(struct omap2_gpio_s));
 702     s->handler = g_malloc0(s->modulecount * 32 * sizeof(qemu_irq));
 703     qdev_init_gpio_in(&dev->qdev, omap2_gpio_set, s->modulecount * 32);
 704     qdev_init_gpio_out(&dev->qdev, s->handler, s->modulecount * 32);
 705     for (i = 0; i < s->modulecount; i++) {
 706         struct omap2_gpio_s *m = &s->modules[i];
 707         if (!s->fclk[i]) {
 708             hw_error("omap2-gpio: fclk%d not connected\n", i);
 709         }
 710         m->revision = (s->mpu_model < omap3430) ? 0x18 : 0x25;
 711         m->handler = &s->handler[i * 32];
 712         sysbus_init_irq(dev, &m->irq[0]); /* mpu irq */
 713         sysbus_init_irq(dev, &m->irq[1]); /* dsp irq */
 714         sysbus_init_irq(dev, &m->wkup);
 715         memory_region_init_io(&m->iomem, &omap2_gpio_module_ops, m,
 716                               "omap.gpio-module", 0x1000);
 717         sysbus_init_mmio(dev, &m->iomem);
 718     }
 719     return 0;
 720 }
 721
 722 /* Using qdev pointer properties for the clocks is not ideal.
 723  * qdev should support a generic means of defining a 'port' with
 724  * an arbitrary interface for connecting two devices. Then we
 725  * could reframe the omap clock API in terms of clock ports,
 726  * and get some type safety. For now the best qdev provides is
 727  * passing an arbitrary pointer.
 728  * (It's not possible to pass in the string which is the clock
 729  * name, because this device does not have the necessary information
 730  * (ie the struct omap_mpu_state_s*) to do the clockname to pointer
 731  * translation.)
 732  */
 733
 734 static Property omap_gpio_properties[] = {
 735     DEFINE_PROP_INT32("mpu_model", struct omap_gpif_s, mpu_model, 0),
 736     DEFINE_PROP_PTR("clk", struct omap_gpif_s, clk),
 737     DEFINE_PROP_END_OF_LIST(),
 738 };
 739
 740 static void omap_gpio_class_init(ObjectClass *klass, void *data)
 741 {
 742     DeviceClass *dc = DEVICE_CLASS(klass);
 743     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 744
 745     k->init = omap_gpio_init;
 746     dc->reset = omap_gpif_reset;
 747     dc->props = omap_gpio_properties;
 748 }
 749
 750 static TypeInfo omap_gpio_info = {
 751     .name          = "omap-gpio",
 752     .parent        = TYPE_SYS_BUS_DEVICE,
 753     .instance_size = sizeof(struct omap_gpif_s),
 754     .class_init    = omap_gpio_class_init,
 755 };
 756
 757 static Property omap2_gpio_properties[] = {
 758     DEFINE_PROP_INT32("mpu_model", struct omap2_gpif_s, mpu_model, 0),
 759     DEFINE_PROP_PTR("iclk", struct omap2_gpif_s, iclk),
 760     DEFINE_PROP_PTR("fclk0", struct omap2_gpif_s, fclk[0]),
 761     DEFINE_PROP_PTR("fclk1", struct omap2_gpif_s, fclk[1]),
 762     DEFINE_PROP_PTR("fclk2", struct omap2_gpif_s, fclk[2]),
 763     DEFINE_PROP_PTR("fclk3", struct omap2_gpif_s, fclk[3]),
 764     DEFINE_PROP_PTR("fclk4", struct omap2_gpif_s, fclk[4]),
 765     DEFINE_PROP_PTR("fclk5", struct omap2_gpif_s, fclk[5]),
 766     DEFINE_PROP_END_OF_LIST(),
 767 };
 768
 769 static void omap2_gpio_class_init(ObjectClass *klass, void *data)
 770 {
 771     DeviceClass *dc = DEVICE_CLASS(klass);
 772     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 773
 774     k->init = omap2_gpio_init;
 775     dc->reset = omap2_gpif_reset;
 776     dc->props = omap2_gpio_properties;
 777 }
 778
 779 static TypeInfo omap2_gpio_info = {
 780     .name          = "omap2-gpio",
 781     .parent        = TYPE_SYS_BUS_DEVICE,
 782     .instance_size = sizeof(struct omap2_gpif_s),
 783     .class_init    = omap2_gpio_class_init,
 784 };
 785
 786 static void omap_gpio_register_types(void)
 787 {
 788     type_register_static(&omap_gpio_info);
 789     type_register_static(&omap2_gpio_info);
 790 }
 791
 792 type_init(omap_gpio_register_types)