hw/stellaris.c

   1 /*
   2  * Luminary Micro Stellaris peripherals
   3  *
   4  * Copyright (c) 2006 CodeSourcery.
   5  * Written by Paul Brook
   6  *
   7  * This code is licensed under the GPL.
   8  */
   9
  10 #include "sysbus.h"
  11 #include "ssi.h"
  12 #include "arm-misc.h"
  13 #include "devices.h"
  14 #include "qemu/timer.h"
  15 #include "i2c.h"
  16 #include "net/net.h"
  17 #include "boards.h"
  18 #include "exec/address-spaces.h"
  19
  20 #define GPIO_A 0
  21 #define GPIO_B 1
  22 #define GPIO_C 2
  23 #define GPIO_D 3
  24 #define GPIO_E 4
  25 #define GPIO_F 5
  26 #define GPIO_G 6
  27
  28 #define BP_OLED_I2C  0x01
  29 #define BP_OLED_SSI  0x02
  30 #define BP_GAMEPAD   0x04
  31
  32 typedef const struct {
  33     const char *name;
  34     uint32_t did0;
  35     uint32_t did1;
  36     uint32_t dc0;
  37     uint32_t dc1;
  38     uint32_t dc2;
  39     uint32_t dc3;
  40     uint32_t dc4;
  41     uint32_t peripherals;
  42 } stellaris_board_info;
  43
  44 /* General purpose timer module.  */
  45
  46 typedef struct gptm_state {
  47     SysBusDevice busdev;
  48     MemoryRegion iomem;
  49     uint32_t config;
  50     uint32_t mode[2];
  51     uint32_t control;
  52     uint32_t state;
  53     uint32_t mask;
  54     uint32_t load[2];
  55     uint32_t match[2];
  56     uint32_t prescale[2];
  57     uint32_t match_prescale[2];
  58     uint32_t rtc;
  59     int64_t tick[2];
  60     struct gptm_state *opaque[2];
  61     QEMUTimer *timer[2];
  62     /* The timers have an alternate output used to trigger the ADC.  */
  63     qemu_irq trigger;
  64     qemu_irq irq;
  65 } gptm_state;
  66
  67 static void gptm_update_irq(gptm_state *s)
  68 {
  69     int level;
  70     level = (s->state & s->mask) != 0;
  71     qemu_set_irq(s->irq, level);
  72 }
  73
  74 static void gptm_stop(gptm_state *s, int n)
  75 {
  76     qemu_del_timer(s->timer[n]);
  77 }
  78
  79 static void gptm_reload(gptm_state *s, int n, int reset)
  80 {
  81     int64_t tick;
  82     if (reset)
  83         tick = qemu_get_clock_ns(vm_clock);
  84     else
  85         tick = s->tick[n];
  86
  87     if (s->config == 0) {
  88         /* 32-bit CountDown.  */
  89         uint32_t count;
  90         count = s->load[0] | (s->load[1] << 16);
  91         tick += (int64_t)count * system_clock_scale;
  92     } else if (s->config == 1) {
  93         /* 32-bit RTC.  1Hz tick.  */
  94         tick += get_ticks_per_sec();
  95     } else if (s->mode[n] == 0xa) {
  96         /* PWM mode.  Not implemented.  */
  97     } else {
  98         hw_error("TODO: 16-bit timer mode 0x%x\n", s->mode[n]);
  99     }
 100     s->tick[n] = tick;
 101     qemu_mod_timer(s->timer[n], tick);
 102 }
 103
 104 static void gptm_tick(void *opaque)
 105 {
 106     gptm_state **p = (gptm_state **)opaque;
 107     gptm_state *s;
 108     int n;
 109
 110     s = *p;
 111     n = p - s->opaque;
 112     if (s->config == 0) {
 113         s->state |= 1;
 114         if ((s->control & 0x20)) {
 115             /* Output trigger.  */
 116             qemu_irq_pulse(s->trigger);
 117         }
 118         if (s->mode[0] & 1) {
 119             /* One-shot.  */
 120             s->control &= ~1;
 121         } else {
 122             /* Periodic.  */
 123             gptm_reload(s, 0, 0);
 124         }
 125     } else if (s->config == 1) {
 126         /* RTC.  */
 127         uint32_t match;
 128         s->rtc++;
 129         match = s->match[0] | (s->match[1] << 16);
 130         if (s->rtc > match)
 131             s->rtc = 0;
 132         if (s->rtc == 0) {
 133             s->state |= 8;
 134         }
 135         gptm_reload(s, 0, 0);
 136     } else if (s->mode[n] == 0xa) {
 137         /* PWM mode.  Not implemented.  */
 138     } else {
 139         hw_error("TODO: 16-bit timer mode 0x%x\n", s->mode[n]);
 140     }
 141     gptm_update_irq(s);
 142 }
 143
 144 static uint64_t gptm_read(void *opaque, hwaddr offset,
 145                           unsigned size)
 146 {
 147     gptm_state *s = (gptm_state *)opaque;
 148
 149     switch (offset) {
 150     case 0x00: /* CFG */
 151         return s->config;
 152     case 0x04: /* TAMR */
 153         return s->mode[0];
 154     case 0x08: /* TBMR */
 155         return s->mode[1];
 156     case 0x0c: /* CTL */
 157         return s->control;
 158     case 0x18: /* IMR */
 159         return s->mask;
 160     case 0x1c: /* RIS */
 161         return s->state;
 162     case 0x20: /* MIS */
 163         return s->state & s->mask;
 164     case 0x24: /* CR */
 165         return 0;
 166     case 0x28: /* TAILR */
 167         return s->load[0] | ((s->config < 4) ? (s->load[1] << 16) : 0);
 168     case 0x2c: /* TBILR */
 169         return s->load[1];
 170     case 0x30: /* TAMARCHR */
 171         return s->match[0] | ((s->config < 4) ? (s->match[1] << 16) : 0);
 172     case 0x34: /* TBMATCHR */
 173         return s->match[1];
 174     case 0x38: /* TAPR */
 175         return s->prescale[0];
 176     case 0x3c: /* TBPR */
 177         return s->prescale[1];
 178     case 0x40: /* TAPMR */
 179         return s->match_prescale[0];
 180     case 0x44: /* TBPMR */
 181         return s->match_prescale[1];
 182     case 0x48: /* TAR */
 183         if (s->control == 1)
 184             return s->rtc;
 185     case 0x4c: /* TBR */
 186         hw_error("TODO: Timer value read\n");
 187     default:
 188         hw_error("gptm_read: Bad offset 0x%x\n", (int)offset);
 189         return 0;
 190     }
 191 }
 192
 193 static void gptm_write(void *opaque, hwaddr offset,
 194                        uint64_t value, unsigned size)
 195 {
 196     gptm_state *s = (gptm_state *)opaque;
 197     uint32_t oldval;
 198
 199     /* The timers should be disabled before changing the configuration.
 200        We take advantage of this and defer everything until the timer
 201        is enabled.  */
 202     switch (offset) {
 203     case 0x00: /* CFG */
 204         s->config = value;
 205         break;
 206     case 0x04: /* TAMR */
 207         s->mode[0] = value;
 208         break;
 209     case 0x08: /* TBMR */
 210         s->mode[1] = value;
 211         break;
 212     case 0x0c: /* CTL */
 213         oldval = s->control;
 214         s->control = value;
 215         /* TODO: Implement pause.  */
 216         if ((oldval ^ value) & 1) {
 217             if (value & 1) {
 218                 gptm_reload(s, 0, 1);
 219             } else {
 220                 gptm_stop(s, 0);
 221             }
 222         }
 223         if (((oldval ^ value) & 0x100) && s->config >= 4) {
 224             if (value & 0x100) {
 225                 gptm_reload(s, 1, 1);
 226             } else {
 227                 gptm_stop(s, 1);
 228             }
 229         }
 230         break;
 231     case 0x18: /* IMR */
 232         s->mask = value & 0x77;
 233         gptm_update_irq(s);
 234         break;
 235     case 0x24: /* CR */
 236         s->state &= ~value;
 237         break;
 238     case 0x28: /* TAILR */
 239         s->load[0] = value & 0xffff;
 240         if (s->config < 4) {
 241             s->load[1] = value >> 16;
 242         }
 243         break;
 244     case 0x2c: /* TBILR */
 245         s->load[1] = value & 0xffff;
 246         break;
 247     case 0x30: /* TAMARCHR */
 248         s->match[0] = value & 0xffff;
 249         if (s->config < 4) {
 250             s->match[1] = value >> 16;
 251         }
 252         break;
 253     case 0x34: /* TBMATCHR */
 254         s->match[1] = value >> 16;
 255         break;
 256     case 0x38: /* TAPR */
 257         s->prescale[0] = value;
 258         break;
 259     case 0x3c: /* TBPR */
 260         s->prescale[1] = value;
 261         break;
 262     case 0x40: /* TAPMR */
 263         s->match_prescale[0] = value;
 264         break;
 265     case 0x44: /* TBPMR */
 266         s->match_prescale[0] = value;
 267         break;
 268     default:
 269         hw_error("gptm_write: Bad offset 0x%x\n", (int)offset);
 270     }
 271     gptm_update_irq(s);
 272 }
 273
 274 static const MemoryRegionOps gptm_ops = {
 275     .read = gptm_read,
 276     .write = gptm_write,
 277     .endianness = DEVICE_NATIVE_ENDIAN,
 278 };
 279
 280 static const VMStateDescription vmstate_stellaris_gptm = {
 281     .name = "stellaris_gptm",
 282     .version_id = 1,
 283     .minimum_version_id = 1,
 284     .minimum_version_id_old = 1,
 285     .fields      = (VMStateField[]) {
 286         VMSTATE_UINT32(config, gptm_state),
 287         VMSTATE_UINT32_ARRAY(mode, gptm_state, 2),
 288         VMSTATE_UINT32(control, gptm_state),
 289         VMSTATE_UINT32(state, gptm_state),
 290         VMSTATE_UINT32(mask, gptm_state),
 291         VMSTATE_UNUSED(8),
 292         VMSTATE_UINT32_ARRAY(load, gptm_state, 2),
 293         VMSTATE_UINT32_ARRAY(match, gptm_state, 2),
 294         VMSTATE_UINT32_ARRAY(prescale, gptm_state, 2),
 295         VMSTATE_UINT32_ARRAY(match_prescale, gptm_state, 2),
 296         VMSTATE_UINT32(rtc, gptm_state),
 297         VMSTATE_INT64_ARRAY(tick, gptm_state, 2),
 298         VMSTATE_TIMER_ARRAY(timer, gptm_state, 2),
 299         VMSTATE_END_OF_LIST()
 300     }
 301 };
 302
 303 static int stellaris_gptm_init(SysBusDevice *dev)
 304 {
 305     gptm_state *s = FROM_SYSBUS(gptm_state, dev);
 306
 307     sysbus_init_irq(dev, &s->irq);
 308     qdev_init_gpio_out(&dev->qdev, &s->trigger, 1);
 309
 310     memory_region_init_io(&s->iomem, &gptm_ops, s,
 311                           "gptm", 0x1000);
 312     sysbus_init_mmio(dev, &s->iomem);
 313
 314     s->opaque[0] = s->opaque[1] = s;
 315     s->timer[0] = qemu_new_timer_ns(vm_clock, gptm_tick, &s->opaque[0]);
 316     s->timer[1] = qemu_new_timer_ns(vm_clock, gptm_tick, &s->opaque[1]);
 317     vmstate_register(&dev->qdev, -1, &vmstate_stellaris_gptm, s);
 318     return 0;
 319 }
 320
 321
 322 /* System controller.  */
 323
 324 typedef struct {
 325     MemoryRegion iomem;
 326     uint32_t pborctl;
 327     uint32_t ldopctl;
 328     uint32_t int_status;
 329     uint32_t int_mask;
 330     uint32_t resc;
 331     uint32_t rcc;
 332     uint32_t rcc2;
 333     uint32_t rcgc[3];
 334     uint32_t scgc[3];
 335     uint32_t dcgc[3];
 336     uint32_t clkvclr;
 337     uint32_t ldoarst;
 338     uint32_t user0;
 339     uint32_t user1;
 340     qemu_irq irq;
 341     stellaris_board_info *board;
 342 } ssys_state;
 343
 344 static void ssys_update(ssys_state *s)
 345 {
 346   qemu_set_irq(s->irq, (s->int_status & s->int_mask) != 0);
 347 }
 348
 349 static uint32_t pllcfg_sandstorm[16] = {
 350     0x31c0, /* 1 Mhz */
 351     0x1ae0, /* 1.8432 Mhz */
 352     0x18c0, /* 2 Mhz */
 353     0xd573, /* 2.4576 Mhz */
 354     0x37a6, /* 3.57954 Mhz */
 355     0x1ae2, /* 3.6864 Mhz */
 356     0x0c40, /* 4 Mhz */
 357     0x98bc, /* 4.906 Mhz */
 358     0x935b, /* 4.9152 Mhz */
 359     0x09c0, /* 5 Mhz */
 360     0x4dee, /* 5.12 Mhz */
 361     0x0c41, /* 6 Mhz */
 362     0x75db, /* 6.144 Mhz */
 363     0x1ae6, /* 7.3728 Mhz */
 364     0x0600, /* 8 Mhz */
 365     0x585b /* 8.192 Mhz */
 366 };
 367
 368 static uint32_t pllcfg_fury[16] = {
 369     0x3200, /* 1 Mhz */
 370     0x1b20, /* 1.8432 Mhz */
 371     0x1900, /* 2 Mhz */
 372     0xf42b, /* 2.4576 Mhz */
 373     0x37e3, /* 3.57954 Mhz */
 374     0x1b21, /* 3.6864 Mhz */
 375     0x0c80, /* 4 Mhz */
 376     0x98ee, /* 4.906 Mhz */
 377     0xd5b4, /* 4.9152 Mhz */
 378     0x0a00, /* 5 Mhz */
 379     0x4e27, /* 5.12 Mhz */
 380     0x1902, /* 6 Mhz */
 381     0xec1c, /* 6.144 Mhz */
 382     0x1b23, /* 7.3728 Mhz */
 383     0x0640, /* 8 Mhz */
 384     0xb11c /* 8.192 Mhz */
 385 };
 386
 387 #define DID0_VER_MASK        0x70000000
 388 #define DID0_VER_0           0x00000000
 389 #define DID0_VER_1           0x10000000
 390
 391 #define DID0_CLASS_MASK      0x00FF0000
 392 #define DID0_CLASS_SANDSTORM 0x00000000
 393 #define DID0_CLASS_FURY      0x00010000
 394
 395 static int ssys_board_class(const ssys_state *s)
 396 {
 397     uint32_t did0 = s->board->did0;
 398     switch (did0 & DID0_VER_MASK) {
 399     case DID0_VER_0:
 400         return DID0_CLASS_SANDSTORM;
 401     case DID0_VER_1:
 402         switch (did0 & DID0_CLASS_MASK) {
 403         case DID0_CLASS_SANDSTORM:
 404         case DID0_CLASS_FURY:
 405             return did0 & DID0_CLASS_MASK;
 406         }
 407         /* for unknown classes, fall through */
 408     default:
 409         hw_error("ssys_board_class: Unknown class 0x%08x\n", did0);
 410     }
 411 }
 412
 413 static uint64_t ssys_read(void *opaque, hwaddr offset,
 414                           unsigned size)
 415 {
 416     ssys_state *s = (ssys_state *)opaque;
 417
 418     switch (offset) {
 419     case 0x000: /* DID0 */
 420         return s->board->did0;
 421     case 0x004: /* DID1 */
 422         return s->board->did1;
 423     case 0x008: /* DC0 */
 424         return s->board->dc0;
 425     case 0x010: /* DC1 */
 426         return s->board->dc1;
 427     case 0x014: /* DC2 */
 428         return s->board->dc2;
 429     case 0x018: /* DC3 */
 430         return s->board->dc3;
 431     case 0x01c: /* DC4 */
 432         return s->board->dc4;
 433     case 0x030: /* PBORCTL */
 434         return s->pborctl;
 435     case 0x034: /* LDOPCTL */
 436         return s->ldopctl;
 437     case 0x040: /* SRCR0 */
 438         return 0;
 439     case 0x044: /* SRCR1 */
 440         return 0;
 441     case 0x048: /* SRCR2 */
 442         return 0;
 443     case 0x050: /* RIS */
 444         return s->int_status;
 445     case 0x054: /* IMC */
 446         return s->int_mask;
 447     case 0x058: /* MISC */
 448         return s->int_status & s->int_mask;
 449     case 0x05c: /* RESC */
 450         return s->resc;
 451     case 0x060: /* RCC */
 452         return s->rcc;
 453     case 0x064: /* PLLCFG */
 454         {
 455             int xtal;
 456             xtal = (s->rcc >> 6) & 0xf;
 457             switch (ssys_board_class(s)) {
 458             case DID0_CLASS_FURY:
 459                 return pllcfg_fury[xtal];
 460             case DID0_CLASS_SANDSTORM:
 461                 return pllcfg_sandstorm[xtal];
 462             default:
 463                 hw_error("ssys_read: Unhandled class for PLLCFG read.\n");
 464                 return 0;
 465             }
 466         }
 467     case 0x070: /* RCC2 */
 468         return s->rcc2;
 469     case 0x100: /* RCGC0 */
 470         return s->rcgc[0];
 471     case 0x104: /* RCGC1 */
 472         return s->rcgc[1];
 473     case 0x108: /* RCGC2 */
 474         return s->rcgc[2];
 475     case 0x110: /* SCGC0 */
 476         return s->scgc[0];
 477     case 0x114: /* SCGC1 */
 478         return s->scgc[1];
 479     case 0x118: /* SCGC2 */
 480         return s->scgc[2];
 481     case 0x120: /* DCGC0 */
 482         return s->dcgc[0];
 483     case 0x124: /* DCGC1 */
 484         return s->dcgc[1];
 485     case 0x128: /* DCGC2 */
 486         return s->dcgc[2];
 487     case 0x150: /* CLKVCLR */
 488         return s->clkvclr;
 489     case 0x160: /* LDOARST */
 490         return s->ldoarst;
 491     case 0x1e0: /* USER0 */
 492         return s->user0;
 493     case 0x1e4: /* USER1 */
 494         return s->user1;
 495     default:
 496         hw_error("ssys_read: Bad offset 0x%x\n", (int)offset);
 497         return 0;
 498     }
 499 }
 500
 501 static bool ssys_use_rcc2(ssys_state *s)
 502 {
 503     return (s->rcc2 >> 31) & 0x1;
 504 }
 505
 506 /*
 507  * Caculate the sys. clock period in ms.
 508  */
 509 static void ssys_calculate_system_clock(ssys_state *s)
 510 {
 511     if (ssys_use_rcc2(s)) {
 512         system_clock_scale = 5 * (((s->rcc2 >> 23) & 0x3f) + 1);
 513     } else {
 514         system_clock_scale = 5 * (((s->rcc >> 23) & 0xf) + 1);
 515     }
 516 }
 517
 518 static void ssys_write(void *opaque, hwaddr offset,
 519                        uint64_t value, unsigned size)
 520 {
 521     ssys_state *s = (ssys_state *)opaque;
 522
 523     switch (offset) {
 524     case 0x030: /* PBORCTL */
 525         s->pborctl = value & 0xffff;
 526         break;
 527     case 0x034: /* LDOPCTL */
 528         s->ldopctl = value & 0x1f;
 529         break;
 530     case 0x040: /* SRCR0 */
 531     case 0x044: /* SRCR1 */
 532     case 0x048: /* SRCR2 */
 533         fprintf(stderr, "Peripheral reset not implemented\n");
 534         break;
 535     case 0x054: /* IMC */
 536         s->int_mask = value & 0x7f;
 537         break;
 538     case 0x058: /* MISC */
 539         s->int_status &= ~value;
 540         break;
 541     case 0x05c: /* RESC */
 542         s->resc = value & 0x3f;
 543         break;
 544     case 0x060: /* RCC */
 545         if ((s->rcc & (1 << 13)) != 0 && (value & (1 << 13)) == 0) {
 546             /* PLL enable.  */
 547             s->int_status |= (1 << 6);
 548         }
 549         s->rcc = value;
 550         ssys_calculate_system_clock(s);
 551         break;
 552     case 0x070: /* RCC2 */
 553         if (ssys_board_class(s) == DID0_CLASS_SANDSTORM) {
 554             break;
 555         }
 556
 557         if ((s->rcc2 & (1 << 13)) != 0 && (value & (1 << 13)) == 0) {
 558             /* PLL enable.  */
 559             s->int_status |= (1 << 6);
 560         }
 561         s->rcc2 = value;
 562         ssys_calculate_system_clock(s);
 563         break;
 564     case 0x100: /* RCGC0 */
 565         s->rcgc[0] = value;
 566         break;
 567     case 0x104: /* RCGC1 */
 568         s->rcgc[1] = value;
 569         break;
 570     case 0x108: /* RCGC2 */
 571         s->rcgc[2] = value;
 572         break;
 573     case 0x110: /* SCGC0 */
 574         s->scgc[0] = value;
 575         break;
 576     case 0x114: /* SCGC1 */
 577         s->scgc[1] = value;
 578         break;
 579     case 0x118: /* SCGC2 */
 580         s->scgc[2] = value;
 581         break;
 582     case 0x120: /* DCGC0 */
 583         s->dcgc[0] = value;
 584         break;
 585     case 0x124: /* DCGC1 */
 586         s->dcgc[1] = value;
 587         break;
 588     case 0x128: /* DCGC2 */
 589         s->dcgc[2] = value;
 590         break;
 591     case 0x150: /* CLKVCLR */
 592         s->clkvclr = value;
 593         break;
 594     case 0x160: /* LDOARST */
 595         s->ldoarst = value;
 596         break;
 597     default:
 598         hw_error("ssys_write: Bad offset 0x%x\n", (int)offset);
 599     }
 600     ssys_update(s);
 601 }
 602
 603 static const MemoryRegionOps ssys_ops = {
 604     .read = ssys_read,
 605     .write = ssys_write,
 606     .endianness = DEVICE_NATIVE_ENDIAN,
 607 };
 608
 609 static void ssys_reset(void *opaque)
 610 {
 611     ssys_state *s = (ssys_state *)opaque;
 612
 613     s->pborctl = 0x7ffd;
 614     s->rcc = 0x078e3ac0;
 615
 616     if (ssys_board_class(s) == DID0_CLASS_SANDSTORM) {
 617         s->rcc2 = 0;
 618     } else {
 619         s->rcc2 = 0x07802810;
 620     }
 621     s->rcgc[0] = 1;
 622     s->scgc[0] = 1;
 623     s->dcgc[0] = 1;
 624     ssys_calculate_system_clock(s);
 625 }
 626
 627 static int stellaris_sys_post_load(void *opaque, int version_id)
 628 {
 629     ssys_state *s = opaque;
 630
 631     ssys_calculate_system_clock(s);
 632
 633     return 0;
 634 }
 635
 636 static const VMStateDescription vmstate_stellaris_sys = {
 637     .name = "stellaris_sys",
 638     .version_id = 2,
 639     .minimum_version_id = 1,
 640     .minimum_version_id_old = 1,
 641     .post_load = stellaris_sys_post_load,
 642     .fields      = (VMStateField[]) {
 643         VMSTATE_UINT32(pborctl, ssys_state),
 644         VMSTATE_UINT32(ldopctl, ssys_state),
 645         VMSTATE_UINT32(int_mask, ssys_state),
 646         VMSTATE_UINT32(int_status, ssys_state),
 647         VMSTATE_UINT32(resc, ssys_state),
 648         VMSTATE_UINT32(rcc, ssys_state),
 649         VMSTATE_UINT32_V(rcc2, ssys_state, 2),
 650         VMSTATE_UINT32_ARRAY(rcgc, ssys_state, 3),
 651         VMSTATE_UINT32_ARRAY(scgc, ssys_state, 3),
 652         VMSTATE_UINT32_ARRAY(dcgc, ssys_state, 3),
 653         VMSTATE_UINT32(clkvclr, ssys_state),
 654         VMSTATE_UINT32(ldoarst, ssys_state),
 655         VMSTATE_END_OF_LIST()
 656     }
 657 };
 658
 659 static int stellaris_sys_init(uint32_t base, qemu_irq irq,
 660                               stellaris_board_info * board,
 661                               uint8_t *macaddr)
 662 {
 663     ssys_state *s;
 664
 665     s = (ssys_state *)g_malloc0(sizeof(ssys_state));
 666     s->irq = irq;
 667     s->board = board;
 668     /* Most devices come preprogrammed with a MAC address in the user data. */
 669     s->user0 = macaddr[0] | (macaddr[1] << 8) | (macaddr[2] << 16);
 670     s->user1 = macaddr[3] | (macaddr[4] << 8) | (macaddr[5] << 16);
 671
 672     memory_region_init_io(&s->iomem, &ssys_ops, s, "ssys", 0x00001000);
 673     memory_region_add_subregion(get_system_memory(), base, &s->iomem);
 674     ssys_reset(s);
 675     vmstate_register(NULL, -1, &vmstate_stellaris_sys, s);
 676     return 0;
 677 }
 678
 679
 680 /* I2C controller.  */
 681
 682 typedef struct {
 683     SysBusDevice busdev;
 684     i2c_bus *bus;
 685     qemu_irq irq;
 686     MemoryRegion iomem;
 687     uint32_t msa;
 688     uint32_t mcs;
 689     uint32_t mdr;
 690     uint32_t mtpr;
 691     uint32_t mimr;
 692     uint32_t mris;
 693     uint32_t mcr;
 694 } stellaris_i2c_state;
 695
 696 #define STELLARIS_I2C_MCS_BUSY    0x01
 697 #define STELLARIS_I2C_MCS_ERROR   0x02
 698 #define STELLARIS_I2C_MCS_ADRACK  0x04
 699 #define STELLARIS_I2C_MCS_DATACK  0x08
 700 #define STELLARIS_I2C_MCS_ARBLST  0x10
 701 #define STELLARIS_I2C_MCS_IDLE    0x20
 702 #define STELLARIS_I2C_MCS_BUSBSY  0x40
 703
 704 static uint64_t stellaris_i2c_read(void *opaque, hwaddr offset,
 705                                    unsigned size)
 706 {
 707     stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
 708
 709     switch (offset) {
 710     case 0x00: /* MSA */
 711         return s->msa;
 712     case 0x04: /* MCS */
 713         /* We don't emulate timing, so the controller is never busy.  */
 714         return s->mcs | STELLARIS_I2C_MCS_IDLE;
 715     case 0x08: /* MDR */
 716         return s->mdr;
 717     case 0x0c: /* MTPR */
 718         return s->mtpr;
 719     case 0x10: /* MIMR */
 720         return s->mimr;
 721     case 0x14: /* MRIS */
 722         return s->mris;
 723     case 0x18: /* MMIS */
 724         return s->mris & s->mimr;
 725     case 0x20: /* MCR */
 726         return s->mcr;
 727     default:
 728         hw_error("strllaris_i2c_read: Bad offset 0x%x\n", (int)offset);
 729         return 0;
 730     }
 731 }
 732
 733 static void stellaris_i2c_update(stellaris_i2c_state *s)
 734 {
 735     int level;
 736
 737     level = (s->mris & s->mimr) != 0;
 738     qemu_set_irq(s->irq, level);
 739 }
 740
 741 static void stellaris_i2c_write(void *opaque, hwaddr offset,
 742                                 uint64_t value, unsigned size)
 743 {
 744     stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
 745
 746     switch (offset) {
 747     case 0x00: /* MSA */
 748         s->msa = value & 0xff;
 749         break;
 750     case 0x04: /* MCS */
 751         if ((s->mcr & 0x10) == 0) {
 752             /* Disabled.  Do nothing.  */
 753             break;
 754         }
 755         /* Grab the bus if this is starting a transfer.  */
 756         if ((value & 2) && (s->mcs & STELLARIS_I2C_MCS_BUSBSY) == 0) {
 757             if (i2c_start_transfer(s->bus, s->msa >> 1, s->msa & 1)) {
 758                 s->mcs |= STELLARIS_I2C_MCS_ARBLST;
 759             } else {
 760                 s->mcs &= ~STELLARIS_I2C_MCS_ARBLST;
 761                 s->mcs |= STELLARIS_I2C_MCS_BUSBSY;
 762             }
 763         }
 764         /* If we don't have the bus then indicate an error.  */
 765         if (!i2c_bus_busy(s->bus)
 766                 || (s->mcs & STELLARIS_I2C_MCS_BUSBSY) == 0) {
 767             s->mcs |= STELLARIS_I2C_MCS_ERROR;
 768             break;
 769         }
 770         s->mcs &= ~STELLARIS_I2C_MCS_ERROR;
 771         if (value & 1) {
 772             /* Transfer a byte.  */
 773             /* TODO: Handle errors.  */
 774             if (s->msa & 1) {
 775                 /* Recv */
 776                 s->mdr = i2c_recv(s->bus) & 0xff;
 777             } else {
 778                 /* Send */
 779                 i2c_send(s->bus, s->mdr);
 780             }
 781             /* Raise an interrupt.  */
 782             s->mris |= 1;
 783         }
 784         if (value & 4) {
 785             /* Finish transfer.  */
 786             i2c_end_transfer(s->bus);
 787             s->mcs &= ~STELLARIS_I2C_MCS_BUSBSY;
 788         }
 789         break;
 790     case 0x08: /* MDR */
 791         s->mdr = value & 0xff;
 792         break;
 793     case 0x0c: /* MTPR */
 794         s->mtpr = value & 0xff;
 795         break;
 796     case 0x10: /* MIMR */
 797         s->mimr = 1;
 798         break;
 799     case 0x1c: /* MICR */
 800         s->mris &= ~value;
 801         break;
 802     case 0x20: /* MCR */
 803         if (value & 1)
 804             hw_error(
 805                       "stellaris_i2c_write: Loopback not implemented\n");
 806         if (value & 0x20)
 807             hw_error(
 808                       "stellaris_i2c_write: Slave mode not implemented\n");
 809         s->mcr = value & 0x31;
 810         break;
 811     default:
 812         hw_error("stellaris_i2c_write: Bad offset 0x%x\n",
 813                   (int)offset);
 814     }
 815     stellaris_i2c_update(s);
 816 }
 817
 818 static void stellaris_i2c_reset(stellaris_i2c_state *s)
 819 {
 820     if (s->mcs & STELLARIS_I2C_MCS_BUSBSY)
 821         i2c_end_transfer(s->bus);
 822
 823     s->msa = 0;
 824     s->mcs = 0;
 825     s->mdr = 0;
 826     s->mtpr = 1;
 827     s->mimr = 0;
 828     s->mris = 0;
 829     s->mcr = 0;
 830     stellaris_i2c_update(s);
 831 }
 832
 833 static const MemoryRegionOps stellaris_i2c_ops = {
 834     .read = stellaris_i2c_read,
 835     .write = stellaris_i2c_write,
 836     .endianness = DEVICE_NATIVE_ENDIAN,
 837 };
 838
 839 static const VMStateDescription vmstate_stellaris_i2c = {
 840     .name = "stellaris_i2c",
 841     .version_id = 1,
 842     .minimum_version_id = 1,
 843     .minimum_version_id_old = 1,
 844     .fields      = (VMStateField[]) {
 845         VMSTATE_UINT32(msa, stellaris_i2c_state),
 846         VMSTATE_UINT32(mcs, stellaris_i2c_state),
 847         VMSTATE_UINT32(mdr, stellaris_i2c_state),
 848         VMSTATE_UINT32(mtpr, stellaris_i2c_state),
 849         VMSTATE_UINT32(mimr, stellaris_i2c_state),
 850         VMSTATE_UINT32(mris, stellaris_i2c_state),
 851         VMSTATE_UINT32(mcr, stellaris_i2c_state),
 852         VMSTATE_END_OF_LIST()
 853     }
 854 };
 855
 856 static int stellaris_i2c_init(SysBusDevice * dev)
 857 {
 858     stellaris_i2c_state *s = FROM_SYSBUS(stellaris_i2c_state, dev);
 859     i2c_bus *bus;
 860
 861     sysbus_init_irq(dev, &s->irq);
 862     bus = i2c_init_bus(&dev->qdev, "i2c");
 863     s->bus = bus;
 864
 865     memory_region_init_io(&s->iomem, &stellaris_i2c_ops, s,
 866                           "i2c", 0x1000);
 867     sysbus_init_mmio(dev, &s->iomem);
 868     /* ??? For now we only implement the master interface.  */
 869     stellaris_i2c_reset(s);
 870     vmstate_register(&dev->qdev, -1, &vmstate_stellaris_i2c, s);
 871     return 0;
 872 }
 873
 874 /* Analogue to Digital Converter.  This is only partially implemented,
 875    enough for applications that use a combined ADC and timer tick.  */
 876
 877 #define STELLARIS_ADC_EM_CONTROLLER 0
 878 #define STELLARIS_ADC_EM_COMP       1
 879 #define STELLARIS_ADC_EM_EXTERNAL   4
 880 #define STELLARIS_ADC_EM_TIMER      5
 881 #define STELLARIS_ADC_EM_PWM0       6
 882 #define STELLARIS_ADC_EM_PWM1       7
 883 #define STELLARIS_ADC_EM_PWM2       8
 884
 885 #define STELLARIS_ADC_FIFO_EMPTY    0x0100
 886 #define STELLARIS_ADC_FIFO_FULL     0x1000
 887
 888 typedef struct
 889 {
 890     SysBusDevice busdev;
 891     MemoryRegion iomem;
 892     uint32_t actss;
 893     uint32_t ris;
 894     uint32_t im;
 895     uint32_t emux;
 896     uint32_t ostat;
 897     uint32_t ustat;
 898     uint32_t sspri;
 899     uint32_t sac;
 900     struct {
 901         uint32_t state;
 902         uint32_t data[16];
 903     } fifo[4];
 904     uint32_t ssmux[4];
 905     uint32_t ssctl[4];
 906     uint32_t noise;
 907     qemu_irq irq[4];
 908 } stellaris_adc_state;
 909
 910 static uint32_t stellaris_adc_fifo_read(stellaris_adc_state *s, int n)
 911 {
 912     int tail;
 913
 914     tail = s->fifo[n].state & 0xf;
 915     if (s->fifo[n].state & STELLARIS_ADC_FIFO_EMPTY) {
 916         s->ustat |= 1 << n;
 917     } else {
 918         s->fifo[n].state = (s->fifo[n].state & ~0xf) | ((tail + 1) & 0xf);
 919         s->fifo[n].state &= ~STELLARIS_ADC_FIFO_FULL;
 920         if (tail + 1 == ((s->fifo[n].state >> 4) & 0xf))
 921             s->fifo[n].state |= STELLARIS_ADC_FIFO_EMPTY;
 922     }
 923     return s->fifo[n].data[tail];
 924 }
 925
 926 static void stellaris_adc_fifo_write(stellaris_adc_state *s, int n,
 927                                      uint32_t value)
 928 {
 929     int head;
 930
 931     /* TODO: Real hardware has limited size FIFOs.  We have a full 16 entry
 932        FIFO fir each sequencer.  */
 933     head = (s->fifo[n].state >> 4) & 0xf;
 934     if (s->fifo[n].state & STELLARIS_ADC_FIFO_FULL) {
 935         s->ostat |= 1 << n;
 936         return;
 937     }
 938     s->fifo[n].data[head] = value;
 939     head = (head + 1) & 0xf;
 940     s->fifo[n].state &= ~STELLARIS_ADC_FIFO_EMPTY;
 941     s->fifo[n].state = (s->fifo[n].state & ~0xf0) | (head << 4);
 942     if ((s->fifo[n].state & 0xf) == head)
 943         s->fifo[n].state |= STELLARIS_ADC_FIFO_FULL;
 944 }
 945
 946 static void stellaris_adc_update(stellaris_adc_state *s)
 947 {
 948     int level;
 949     int n;
 950
 951     for (n = 0; n < 4; n++) {
 952         level = (s->ris & s->im & (1 << n)) != 0;
 953         qemu_set_irq(s->irq[n], level);
 954     }
 955 }
 956
 957 static void stellaris_adc_trigger(void *opaque, int irq, int level)
 958 {
 959     stellaris_adc_state *s = (stellaris_adc_state *)opaque;
 960     int n;
 961
 962     for (n = 0; n < 4; n++) {
 963         if ((s->actss & (1 << n)) == 0) {
 964             continue;
 965         }
 966
 967         if (((s->emux >> (n * 4)) & 0xff) != 5) {
 968             continue;
 969         }
 970
 971         /* Some applications use the ADC as a random number source, so introduce
 972            some variation into the signal.  */
 973         s->noise = s->noise * 314159 + 1;
 974         /* ??? actual inputs not implemented.  Return an arbitrary value.  */
 975         stellaris_adc_fifo_write(s, n, 0x200 + ((s->noise >> 16) & 7));
 976         s->ris |= (1 << n);
 977         stellaris_adc_update(s);
 978     }
 979 }
 980
 981 static void stellaris_adc_reset(stellaris_adc_state *s)
 982 {
 983     int n;
 984
 985     for (n = 0; n < 4; n++) {
 986         s->ssmux[n] = 0;
 987         s->ssctl[n] = 0;
 988         s->fifo[n].state = STELLARIS_ADC_FIFO_EMPTY;
 989     }
 990 }
 991
 992 static uint64_t stellaris_adc_read(void *opaque, hwaddr offset,
 993                                    unsigned size)
 994 {
 995     stellaris_adc_state *s = (stellaris_adc_state *)opaque;
 996
 997     /* TODO: Implement this.  */
 998     if (offset >= 0x40 && offset < 0xc0) {
 999         int n;
1000         n = (offset - 0x40) >> 5;
1001         switch (offset & 0x1f) {
1002         case 0x00: /* SSMUX */
1003             return s->ssmux[n];
1004         case 0x04: /* SSCTL */
1005             return s->ssctl[n];
1006         case 0x08: /* SSFIFO */
1007             return stellaris_adc_fifo_read(s, n);
1008         case 0x0c: /* SSFSTAT */
1009             return s->fifo[n].state;
1010         default:
1011             break;
1012         }
1013     }
1014     switch (offset) {
1015     case 0x00: /* ACTSS */
1016         return s->actss;
1017     case 0x04: /* RIS */
1018         return s->ris;
1019     case 0x08: /* IM */
1020         return s->im;
1021     case 0x0c: /* ISC */
1022         return s->ris & s->im;
1023     case 0x10: /* OSTAT */
1024         return s->ostat;
1025     case 0x14: /* EMUX */
1026         return s->emux;
1027     case 0x18: /* USTAT */
1028         return s->ustat;
1029     case 0x20: /* SSPRI */
1030         return s->sspri;
1031     case 0x30: /* SAC */
1032         return s->sac;
1033     default:
1034         hw_error("strllaris_adc_read: Bad offset 0x%x\n",
1035                   (int)offset);
1036         return 0;
1037     }
1038 }
1039
1040 static void stellaris_adc_write(void *opaque, hwaddr offset,
1041                                 uint64_t value, unsigned size)
1042 {
1043     stellaris_adc_state *s = (stellaris_adc_state *)opaque;
1044
1045     /* TODO: Implement this.  */
1046     if (offset >= 0x40 && offset < 0xc0) {
1047         int n;
1048         n = (offset - 0x40) >> 5;
1049         switch (offset & 0x1f) {
1050         case 0x00: /* SSMUX */
1051             s->ssmux[n] = value & 0x33333333;
1052             return;
1053         case 0x04: /* SSCTL */
1054             if (value != 6) {
1055                 hw_error("ADC: Unimplemented sequence %" PRIx64 "\n",
1056                           value);
1057             }
1058             s->ssctl[n] = value;
1059             return;
1060         default:
1061             break;
1062         }
1063     }
1064     switch (offset) {
1065     case 0x00: /* ACTSS */
1066         s->actss = value & 0xf;
1067         break;
1068     case 0x08: /* IM */
1069         s->im = value;
1070         break;
1071     case 0x0c: /* ISC */
1072         s->ris &= ~value;
1073         break;
1074     case 0x10: /* OSTAT */
1075         s->ostat &= ~value;
1076         break;
1077     case 0x14: /* EMUX */
1078         s->emux = value;
1079         break;
1080     case 0x18: /* USTAT */
1081         s->ustat &= ~value;
1082         break;
1083     case 0x20: /* SSPRI */
1084         s->sspri = value;
1085         break;
1086     case 0x28: /* PSSI */
1087         hw_error("Not implemented:  ADC sample initiate\n");
1088         break;
1089     case 0x30: /* SAC */
1090         s->sac = value;
1091         break;
1092     default:
1093         hw_error("stellaris_adc_write: Bad offset 0x%x\n", (int)offset);
1094     }
1095     stellaris_adc_update(s);
1096 }
1097
1098 static const MemoryRegionOps stellaris_adc_ops = {
1099     .read = stellaris_adc_read,
1100     .write = stellaris_adc_write,
1101     .endianness = DEVICE_NATIVE_ENDIAN,
1102 };
1103
1104 static const VMStateDescription vmstate_stellaris_adc = {
1105     .name = "stellaris_adc",
1106     .version_id = 1,
1107     .minimum_version_id = 1,
1108     .minimum_version_id_old = 1,
1109     .fields      = (VMStateField[]) {
1110         VMSTATE_UINT32(actss, stellaris_adc_state),
1111         VMSTATE_UINT32(ris, stellaris_adc_state),
1112         VMSTATE_UINT32(im, stellaris_adc_state),
1113         VMSTATE_UINT32(emux, stellaris_adc_state),
1114         VMSTATE_UINT32(ostat, stellaris_adc_state),
1115         VMSTATE_UINT32(ustat, stellaris_adc_state),
1116         VMSTATE_UINT32(sspri, stellaris_adc_state),
1117         VMSTATE_UINT32(sac, stellaris_adc_state),
1118         VMSTATE_UINT32(fifo[0].state, stellaris_adc_state),
1119         VMSTATE_UINT32_ARRAY(fifo[0].data, stellaris_adc_state, 16),
1120         VMSTATE_UINT32(ssmux[0], stellaris_adc_state),
1121         VMSTATE_UINT32(ssctl[0], stellaris_adc_state),
1122         VMSTATE_UINT32(fifo[1].state, stellaris_adc_state),
1123         VMSTATE_UINT32_ARRAY(fifo[1].data, stellaris_adc_state, 16),
1124         VMSTATE_UINT32(ssmux[1], stellaris_adc_state),
1125         VMSTATE_UINT32(ssctl[1], stellaris_adc_state),
1126         VMSTATE_UINT32(fifo[2].state, stellaris_adc_state),
1127         VMSTATE_UINT32_ARRAY(fifo[2].data, stellaris_adc_state, 16),
1128         VMSTATE_UINT32(ssmux[2], stellaris_adc_state),
1129         VMSTATE_UINT32(ssctl[2], stellaris_adc_state),
1130         VMSTATE_UINT32(fifo[3].state, stellaris_adc_state),
1131         VMSTATE_UINT32_ARRAY(fifo[3].data, stellaris_adc_state, 16),
1132         VMSTATE_UINT32(ssmux[3], stellaris_adc_state),
1133         VMSTATE_UINT32(ssctl[3], stellaris_adc_state),
1134         VMSTATE_UINT32(noise, stellaris_adc_state),
1135         VMSTATE_END_OF_LIST()
1136     }
1137 };
1138
1139 static int stellaris_adc_init(SysBusDevice *dev)
1140 {
1141     stellaris_adc_state *s = FROM_SYSBUS(stellaris_adc_state, dev);
1142     int n;
1143
1144     for (n = 0; n < 4; n++) {
1145         sysbus_init_irq(dev, &s->irq[n]);
1146     }
1147
1148     memory_region_init_io(&s->iomem, &stellaris_adc_ops, s,
1149                           "adc", 0x1000);
1150     sysbus_init_mmio(dev, &s->iomem);
1151     stellaris_adc_reset(s);
1152     qdev_init_gpio_in(&dev->qdev, stellaris_adc_trigger, 1);
1153     vmstate_register(&dev->qdev, -1, &vmstate_stellaris_adc, s);
1154     return 0;
1155 }
1156
1157 /* Board init.  */
1158 static stellaris_board_info stellaris_boards[] = {
1159   { "LM3S811EVB",
1160     0,
1161     0x0032000e,
1162     0x001f001f, /* dc0 */
1163     0x001132bf,
1164     0x01071013,
1165     0x3f0f01ff,
1166     0x0000001f,
1167     BP_OLED_I2C
1168   },
1169   { "LM3S6965EVB",
1170     0x10010002,
1171     0x1073402e,
1172     0x00ff007f, /* dc0 */
1173     0x001133ff,
1174     0x030f5317,
1175     0x0f0f87ff,
1176     0x5000007f,
1177     BP_OLED_SSI | BP_GAMEPAD
1178   }
1179 };
1180
1181 static void stellaris_init(const char *kernel_filename, const char *cpu_model,
1182                            stellaris_board_info *board)
1183 {
1184     static const int uart_irq[] = {5, 6, 33, 34};
1185     static const int timer_irq[] = {19, 21, 23, 35};
1186     static const uint32_t gpio_addr[7] =
1187       { 0x40004000, 0x40005000, 0x40006000, 0x40007000,
1188         0x40024000, 0x40025000, 0x40026000};
1189     static const int gpio_irq[7] = {0, 1, 2, 3, 4, 30, 31};
1190
1191     MemoryRegion *address_space_mem = get_system_memory();
1192     qemu_irq *pic;
1193     DeviceState *gpio_dev[7];
1194     qemu_irq gpio_in[7][8];
1195     qemu_irq gpio_out[7][8];
1196     qemu_irq adc;
1197     int sram_size;
1198     int flash_size;
1199     i2c_bus *i2c;
1200     DeviceState *dev;
1201     int i;
1202     int j;
1203
1204     flash_size = ((board->dc0 & 0xffff) + 1) << 1;
1205     sram_size = (board->dc0 >> 18) + 1;
1206     pic = armv7m_init(address_space_mem,
1207                       flash_size, sram_size, kernel_filename, cpu_model);
1208
1209     if (board->dc1 & (1 << 16)) {
1210         dev = sysbus_create_varargs("stellaris-adc", 0x40038000,
1211                                     pic[14], pic[15], pic[16], pic[17], NULL);
1212         adc = qdev_get_gpio_in(dev, 0);
1213     } else {
1214         adc = NULL;
1215     }
1216     for (i = 0; i < 4; i++) {
1217         if (board->dc2 & (0x10000 << i)) {
1218             dev = sysbus_create_simple("stellaris-gptm",
1219                                        0x40030000 + i * 0x1000,
1220                                        pic[timer_irq[i]]);
1221             /* TODO: This is incorrect, but we get away with it because
1222                the ADC output is only ever pulsed.  */
1223             qdev_connect_gpio_out(dev, 0, adc);
1224         }
1225     }
1226
1227     stellaris_sys_init(0x400fe000, pic[28], board, nd_table[0].macaddr.a);
1228
1229     for (i = 0; i < 7; i++) {
1230         if (board->dc4 & (1 << i)) {
1231             gpio_dev[i] = sysbus_create_simple("pl061_luminary", gpio_addr[i],
1232                                                pic[gpio_irq[i]]);
1233             for (j = 0; j < 8; j++) {
1234                 gpio_in[i][j] = qdev_get_gpio_in(gpio_dev[i], j);
1235                 gpio_out[i][j] = NULL;
1236             }
1237         }
1238     }
1239
1240     if (board->dc2 & (1 << 12)) {
1241         dev = sysbus_create_simple("stellaris-i2c", 0x40020000, pic[8]);
1242         i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
1243         if (board->peripherals & BP_OLED_I2C) {
1244             i2c_create_slave(i2c, "ssd0303", 0x3d);
1245         }
1246     }
1247
1248     for (i = 0; i < 4; i++) {
1249         if (board->dc2 & (1 << i)) {
1250             sysbus_create_simple("pl011_luminary", 0x4000c000 + i * 0x1000,
1251                                  pic[uart_irq[i]]);
1252         }
1253     }
1254     if (board->dc2 & (1 << 4)) {
1255         dev = sysbus_create_simple("pl022", 0x40008000, pic[7]);
1256         if (board->peripherals & BP_OLED_SSI) {
1257             void *bus;
1258             DeviceState *sddev;
1259             DeviceState *ssddev;
1260
1261             /* Some boards have both an OLED controller and SD card connected to
1262              * the same SSI port, with the SD card chip select connected to a
1263              * GPIO pin.  Technically the OLED chip select is connected to the
1264              * SSI Fss pin.  We do not bother emulating that as both devices
1265              * should never be selected simultaneously, and our OLED controller
1266              * ignores stray 0xff commands that occur when deselecting the SD
1267              * card.
1268              */
1269             bus = qdev_get_child_bus(dev, "ssi");
1270
1271             sddev = ssi_create_slave(bus, "ssi-sd");
1272             ssddev = ssi_create_slave(bus, "ssd0323");
1273             gpio_out[GPIO_D][0] = qemu_irq_split(qdev_get_gpio_in(sddev, 0),
1274                                                  qdev_get_gpio_in(ssddev, 0));
1275             gpio_out[GPIO_C][7] = qdev_get_gpio_in(ssddev, 1);
1276
1277             /* Make sure the select pin is high.  */
1278             qemu_irq_raise(gpio_out[GPIO_D][0]);
1279         }
1280     }
1281     if (board->dc4 & (1 << 28)) {
1282         DeviceState *enet;
1283
1284         qemu_check_nic_model(&nd_table[0], "stellaris");
1285
1286         enet = qdev_create(NULL, "stellaris_enet");
1287         qdev_set_nic_properties(enet, &nd_table[0]);
1288         qdev_init_nofail(enet);
1289         sysbus_mmio_map(sysbus_from_qdev(enet), 0, 0x40048000);
1290         sysbus_connect_irq(sysbus_from_qdev(enet), 0, pic[42]);
1291     }
1292     if (board->peripherals & BP_GAMEPAD) {
1293         qemu_irq gpad_irq[5];
1294         static const int gpad_keycode[5] = { 0xc8, 0xd0, 0xcb, 0xcd, 0x1d };
1295
1296         gpad_irq[0] = qemu_irq_invert(gpio_in[GPIO_E][0]); /* up */
1297         gpad_irq[1] = qemu_irq_invert(gpio_in[GPIO_E][1]); /* down */
1298         gpad_irq[2] = qemu_irq_invert(gpio_in[GPIO_E][2]); /* left */
1299         gpad_irq[3] = qemu_irq_invert(gpio_in[GPIO_E][3]); /* right */
1300         gpad_irq[4] = qemu_irq_invert(gpio_in[GPIO_F][1]); /* select */
1301
1302         stellaris_gamepad_init(5, gpad_irq, gpad_keycode);
1303     }
1304     for (i = 0; i < 7; i++) {
1305         if (board->dc4 & (1 << i)) {
1306             for (j = 0; j < 8; j++) {
1307                 if (gpio_out[i][j]) {
1308                     qdev_connect_gpio_out(gpio_dev[i], j, gpio_out[i][j]);
1309                 }
1310             }
1311         }
1312     }
1313 }
1314
1315 /* FIXME: Figure out how to generate these from stellaris_boards.  */
1316 static void lm3s811evb_init(QEMUMachineInitArgs *args)
1317 {
1318     const char *cpu_model = args->cpu_model;
1319     const char *kernel_filename = args->kernel_filename;
1320     stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
1321 }
1322
1323 static void lm3s6965evb_init(QEMUMachineInitArgs *args)
1324 {
1325     const char *cpu_model = args->cpu_model;
1326     const char *kernel_filename = args->kernel_filename;
1327     stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
1328 }
1329
1330 static QEMUMachine lm3s811evb_machine = {
1331     .name = "lm3s811evb",
1332     .desc = "Stellaris LM3S811EVB",
1333     .init = lm3s811evb_init,
1334 };
1335
1336 static QEMUMachine lm3s6965evb_machine = {
1337     .name = "lm3s6965evb",
1338     .desc = "Stellaris LM3S6965EVB",
1339     .init = lm3s6965evb_init,
1340 };
1341
1342 static void stellaris_machine_init(void)
1343 {
1344     qemu_register_machine(&lm3s811evb_machine);
1345     qemu_register_machine(&lm3s6965evb_machine);
1346 }
1347
1348 machine_init(stellaris_machine_init);
1349
1350 static void stellaris_i2c_class_init(ObjectClass *klass, void *data)
1351 {
1352     SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
1353
1354     sdc->init = stellaris_i2c_init;
1355 }
1356
1357 static TypeInfo stellaris_i2c_info = {
1358     .name          = "stellaris-i2c",
1359     .parent        = TYPE_SYS_BUS_DEVICE,
1360     .instance_size = sizeof(stellaris_i2c_state),
1361     .class_init    = stellaris_i2c_class_init,
1362 };
1363
1364 static void stellaris_gptm_class_init(ObjectClass *klass, void *data)
1365 {
1366     SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
1367
1368     sdc->init = stellaris_gptm_init;
1369 }
1370
1371 static TypeInfo stellaris_gptm_info = {
1372     .name          = "stellaris-gptm",
1373     .parent        = TYPE_SYS_BUS_DEVICE,
1374     .instance_size = sizeof(gptm_state),
1375     .class_init    = stellaris_gptm_class_init,
1376 };
1377
1378 static void stellaris_adc_class_init(ObjectClass *klass, void *data)
1379 {
1380     SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
1381
1382     sdc->init = stellaris_adc_init;
1383 }
1384
1385 static TypeInfo stellaris_adc_info = {
1386     .name          = "stellaris-adc",
1387     .parent        = TYPE_SYS_BUS_DEVICE,
1388     .instance_size = sizeof(stellaris_adc_state),
1389     .class_init    = stellaris_adc_class_init,
1390 };
1391
1392 static void stellaris_register_types(void)
1393 {
1394     type_register_static(&stellaris_i2c_info);
1395     type_register_static(&stellaris_gptm_info);
1396     type_register_static(&stellaris_adc_info);
1397 }
1398
1399 type_init(stellaris_register_types)