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.h"
  17 #include "boards.h"
  18 #include "exec-memory.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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t 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 /* Some boards have both an OLED controller and SD card connected to
1158    the same SSI port, with the SD card chip select connected to a
1159    GPIO pin.  Technically the OLED chip select is connected to the SSI
1160    Fss pin.  We do not bother emulating that as both devices should
1161    never be selected simultaneously, and our OLED controller ignores stray
1162    0xff commands that occur when deselecting the SD card.  */
1163
1164 typedef struct {
1165     SSISlave ssidev;
1166     qemu_irq irq;
1167     int current_dev;
1168     SSIBus *bus[2];
1169 } stellaris_ssi_bus_state;
1170
1171 static void stellaris_ssi_bus_select(void *opaque, int irq, int level)
1172 {
1173     stellaris_ssi_bus_state *s = (stellaris_ssi_bus_state *)opaque;
1174
1175     s->current_dev = level;
1176 }
1177
1178 static uint32_t stellaris_ssi_bus_transfer(SSISlave *dev, uint32_t val)
1179 {
1180     stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev);
1181
1182     return ssi_transfer(s->bus[s->current_dev], val);
1183 }
1184
1185 static const VMStateDescription vmstate_stellaris_ssi_bus = {
1186     .name = "stellaris_ssi_bus",
1187     .version_id = 1,
1188     .minimum_version_id = 1,
1189     .minimum_version_id_old = 1,
1190     .fields      = (VMStateField[]) {
1191         VMSTATE_INT32(current_dev, stellaris_ssi_bus_state),
1192         VMSTATE_END_OF_LIST()
1193     }
1194 };
1195
1196 static int stellaris_ssi_bus_init(SSISlave *dev)
1197 {
1198     stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev);
1199
1200     s->bus[0] = ssi_create_bus(&dev->qdev, "ssi0");
1201     s->bus[1] = ssi_create_bus(&dev->qdev, "ssi1");
1202     qdev_init_gpio_in(&dev->qdev, stellaris_ssi_bus_select, 1);
1203
1204     vmstate_register(&dev->qdev, -1, &vmstate_stellaris_ssi_bus, s);
1205     return 0;
1206 }
1207
1208 /* Board init.  */
1209 static stellaris_board_info stellaris_boards[] = {
1210   { "LM3S811EVB",
1211     0,
1212     0x0032000e,
1213     0x001f001f, /* dc0 */
1214     0x001132bf,
1215     0x01071013,
1216     0x3f0f01ff,
1217     0x0000001f,
1218     BP_OLED_I2C
1219   },
1220   { "LM3S6965EVB",
1221     0x10010002,
1222     0x1073402e,
1223     0x00ff007f, /* dc0 */
1224     0x001133ff,
1225     0x030f5317,
1226     0x0f0f87ff,
1227     0x5000007f,
1228     BP_OLED_SSI | BP_GAMEPAD
1229   }
1230 };
1231
1232 static void stellaris_init(const char *kernel_filename, const char *cpu_model,
1233                            stellaris_board_info *board)
1234 {
1235     static const int uart_irq[] = {5, 6, 33, 34};
1236     static const int timer_irq[] = {19, 21, 23, 35};
1237     static const uint32_t gpio_addr[7] =
1238       { 0x40004000, 0x40005000, 0x40006000, 0x40007000,
1239         0x40024000, 0x40025000, 0x40026000};
1240     static const int gpio_irq[7] = {0, 1, 2, 3, 4, 30, 31};
1241
1242     MemoryRegion *address_space_mem = get_system_memory();
1243     qemu_irq *pic;
1244     DeviceState *gpio_dev[7];
1245     qemu_irq gpio_in[7][8];
1246     qemu_irq gpio_out[7][8];
1247     qemu_irq adc;
1248     int sram_size;
1249     int flash_size;
1250     i2c_bus *i2c;
1251     DeviceState *dev;
1252     int i;
1253     int j;
1254
1255     flash_size = ((board->dc0 & 0xffff) + 1) << 1;
1256     sram_size = (board->dc0 >> 18) + 1;
1257     pic = armv7m_init(address_space_mem,
1258                       flash_size, sram_size, kernel_filename, cpu_model);
1259
1260     if (board->dc1 & (1 << 16)) {
1261         dev = sysbus_create_varargs("stellaris-adc", 0x40038000,
1262                                     pic[14], pic[15], pic[16], pic[17], NULL);
1263         adc = qdev_get_gpio_in(dev, 0);
1264     } else {
1265         adc = NULL;
1266     }
1267     for (i = 0; i < 4; i++) {
1268         if (board->dc2 & (0x10000 << i)) {
1269             dev = sysbus_create_simple("stellaris-gptm",
1270                                        0x40030000 + i * 0x1000,
1271                                        pic[timer_irq[i]]);
1272             /* TODO: This is incorrect, but we get away with it because
1273                the ADC output is only ever pulsed.  */
1274             qdev_connect_gpio_out(dev, 0, adc);
1275         }
1276     }
1277
1278     stellaris_sys_init(0x400fe000, pic[28], board, nd_table[0].macaddr.a);
1279
1280     for (i = 0; i < 7; i++) {
1281         if (board->dc4 & (1 << i)) {
1282             gpio_dev[i] = sysbus_create_simple("pl061_luminary", gpio_addr[i],
1283                                                pic[gpio_irq[i]]);
1284             for (j = 0; j < 8; j++) {
1285                 gpio_in[i][j] = qdev_get_gpio_in(gpio_dev[i], j);
1286                 gpio_out[i][j] = NULL;
1287             }
1288         }
1289     }
1290
1291     if (board->dc2 & (1 << 12)) {
1292         dev = sysbus_create_simple("stellaris-i2c", 0x40020000, pic[8]);
1293         i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
1294         if (board->peripherals & BP_OLED_I2C) {
1295             i2c_create_slave(i2c, "ssd0303", 0x3d);
1296         }
1297     }
1298
1299     for (i = 0; i < 4; i++) {
1300         if (board->dc2 & (1 << i)) {
1301             sysbus_create_simple("pl011_luminary", 0x4000c000 + i * 0x1000,
1302                                  pic[uart_irq[i]]);
1303         }
1304     }
1305     if (board->dc2 & (1 << 4)) {
1306         dev = sysbus_create_simple("pl022", 0x40008000, pic[7]);
1307         if (board->peripherals & BP_OLED_SSI) {
1308             DeviceState *mux;
1309             void *bus;
1310
1311             bus = qdev_get_child_bus(dev, "ssi");
1312             mux = ssi_create_slave(bus, "evb6965-ssi");
1313             gpio_out[GPIO_D][0] = qdev_get_gpio_in(mux, 0);
1314
1315             bus = qdev_get_child_bus(mux, "ssi0");
1316             ssi_create_slave(bus, "ssi-sd");
1317
1318             bus = qdev_get_child_bus(mux, "ssi1");
1319             dev = ssi_create_slave(bus, "ssd0323");
1320             gpio_out[GPIO_C][7] = qdev_get_gpio_in(dev, 0);
1321
1322             /* Make sure the select pin is high.  */
1323             qemu_irq_raise(gpio_out[GPIO_D][0]);
1324         }
1325     }
1326     if (board->dc4 & (1 << 28)) {
1327         DeviceState *enet;
1328
1329         qemu_check_nic_model(&nd_table[0], "stellaris");
1330
1331         enet = qdev_create(NULL, "stellaris_enet");
1332         qdev_set_nic_properties(enet, &nd_table[0]);
1333         qdev_init_nofail(enet);
1334         sysbus_mmio_map(sysbus_from_qdev(enet), 0, 0x40048000);
1335         sysbus_connect_irq(sysbus_from_qdev(enet), 0, pic[42]);
1336     }
1337     if (board->peripherals & BP_GAMEPAD) {
1338         qemu_irq gpad_irq[5];
1339         static const int gpad_keycode[5] = { 0xc8, 0xd0, 0xcb, 0xcd, 0x1d };
1340
1341         gpad_irq[0] = qemu_irq_invert(gpio_in[GPIO_E][0]); /* up */
1342         gpad_irq[1] = qemu_irq_invert(gpio_in[GPIO_E][1]); /* down */
1343         gpad_irq[2] = qemu_irq_invert(gpio_in[GPIO_E][2]); /* left */
1344         gpad_irq[3] = qemu_irq_invert(gpio_in[GPIO_E][3]); /* right */
1345         gpad_irq[4] = qemu_irq_invert(gpio_in[GPIO_F][1]); /* select */
1346
1347         stellaris_gamepad_init(5, gpad_irq, gpad_keycode);
1348     }
1349     for (i = 0; i < 7; i++) {
1350         if (board->dc4 & (1 << i)) {
1351             for (j = 0; j < 8; j++) {
1352                 if (gpio_out[i][j]) {
1353                     qdev_connect_gpio_out(gpio_dev[i], j, gpio_out[i][j]);
1354                 }
1355             }
1356         }
1357     }
1358 }
1359
1360 /* FIXME: Figure out how to generate these from stellaris_boards.  */
1361 static void lm3s811evb_init(ram_addr_t ram_size,
1362                      const char *boot_device,
1363                      const char *kernel_filename, const char *kernel_cmdline,
1364                      const char *initrd_filename, const char *cpu_model)
1365 {
1366     stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
1367 }
1368
1369 static void lm3s6965evb_init(ram_addr_t ram_size,
1370                      const char *boot_device,
1371                      const char *kernel_filename, const char *kernel_cmdline,
1372                      const char *initrd_filename, const char *cpu_model)
1373 {
1374     stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
1375 }
1376
1377 static QEMUMachine lm3s811evb_machine = {
1378     .name = "lm3s811evb",
1379     .desc = "Stellaris LM3S811EVB",
1380     .init = lm3s811evb_init,
1381 };
1382
1383 static QEMUMachine lm3s6965evb_machine = {
1384     .name = "lm3s6965evb",
1385     .desc = "Stellaris LM3S6965EVB",
1386     .init = lm3s6965evb_init,
1387 };
1388
1389 static void stellaris_machine_init(void)
1390 {
1391     qemu_register_machine(&lm3s811evb_machine);
1392     qemu_register_machine(&lm3s6965evb_machine);
1393 }
1394
1395 machine_init(stellaris_machine_init);
1396
1397 static SSISlaveInfo stellaris_ssi_bus_info = {
1398     .qdev.name = "evb6965-ssi",
1399     .qdev.size = sizeof(stellaris_ssi_bus_state),
1400     .init = stellaris_ssi_bus_init,
1401     .transfer = stellaris_ssi_bus_transfer
1402 };
1403
1404 static void stellaris_register_devices(void)
1405 {
1406     sysbus_register_dev("stellaris-i2c", sizeof(stellaris_i2c_state),
1407                         stellaris_i2c_init);
1408     sysbus_register_dev("stellaris-gptm", sizeof(gptm_state),
1409                         stellaris_gptm_init);
1410     sysbus_register_dev("stellaris-adc", sizeof(stellaris_adc_state),
1411                         stellaris_adc_init);
1412     ssi_register_slave(&stellaris_ssi_bus_info);
1413 }
1414
1415 device_init(stellaris_register_devices)