hw/net/imx_fec.c

   1 /*
   2  * i.MX Fast Ethernet Controller emulation.
   3  *
   4  * Copyright (c) 2013 Jean-Christophe Dubois. <jcd@tribudubois.net>
   5  *
   6  * Based on Coldfire Fast Ethernet Controller emulation.
   7  *
   8  * Copyright (c) 2007 CodeSourcery.
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License as published by the
  12  *  Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful, but WITHOUT
  16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  18  *  for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License along
  21  *  with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "qemu/osdep.h"
  25 #include "hw/net/imx_fec.h"
  26 #include "sysemu/dma.h"
  27
  28 /* For crc32 */
  29 #include <zlib.h>
  30
  31 #ifndef DEBUG_IMX_FEC
  32 #define DEBUG_IMX_FEC 0
  33 #endif
  34
  35 #define FEC_PRINTF(fmt, args...) \
  36     do { \
  37         if (DEBUG_IMX_FEC) { \
  38             fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_FEC, \
  39                                              __func__, ##args); \
  40         } \
  41     } while (0)
  42
  43 #ifndef DEBUG_IMX_PHY
  44 #define DEBUG_IMX_PHY 0
  45 #endif
  46
  47 #define PHY_PRINTF(fmt, args...) \
  48     do { \
  49         if (DEBUG_IMX_PHY) { \
  50             fprintf(stderr, "[%s.phy]%s: " fmt , TYPE_IMX_FEC, \
  51                                                  __func__, ##args); \
  52         } \
  53     } while (0)
  54
  55 static const VMStateDescription vmstate_imx_fec = {
  56     .name = TYPE_IMX_FEC,
  57     .version_id = 1,
  58     .minimum_version_id = 1,
  59     .fields = (VMStateField[]) {
  60         VMSTATE_UINT32(irq_state, IMXFECState),
  61         VMSTATE_UINT32(eir, IMXFECState),
  62         VMSTATE_UINT32(eimr, IMXFECState),
  63         VMSTATE_UINT32(rx_enabled, IMXFECState),
  64         VMSTATE_UINT32(rx_descriptor, IMXFECState),
  65         VMSTATE_UINT32(tx_descriptor, IMXFECState),
  66         VMSTATE_UINT32(ecr, IMXFECState),
  67         VMSTATE_UINT32(mmfr, IMXFECState),
  68         VMSTATE_UINT32(mscr, IMXFECState),
  69         VMSTATE_UINT32(mibc, IMXFECState),
  70         VMSTATE_UINT32(rcr, IMXFECState),
  71         VMSTATE_UINT32(tcr, IMXFECState),
  72         VMSTATE_UINT32(tfwr, IMXFECState),
  73         VMSTATE_UINT32(frsr, IMXFECState),
  74         VMSTATE_UINT32(erdsr, IMXFECState),
  75         VMSTATE_UINT32(etdsr, IMXFECState),
  76         VMSTATE_UINT32(emrbr, IMXFECState),
  77         VMSTATE_UINT32(miigsk_cfgr, IMXFECState),
  78         VMSTATE_UINT32(miigsk_enr, IMXFECState),
  79
  80         VMSTATE_UINT32(phy_status, IMXFECState),
  81         VMSTATE_UINT32(phy_control, IMXFECState),
  82         VMSTATE_UINT32(phy_advertise, IMXFECState),
  83         VMSTATE_UINT32(phy_int, IMXFECState),
  84         VMSTATE_UINT32(phy_int_mask, IMXFECState),
  85         VMSTATE_END_OF_LIST()
  86     }
  87 };
  88
  89 #define PHY_INT_ENERGYON            (1 << 7)
  90 #define PHY_INT_AUTONEG_COMPLETE    (1 << 6)
  91 #define PHY_INT_FAULT               (1 << 5)
  92 #define PHY_INT_DOWN                (1 << 4)
  93 #define PHY_INT_AUTONEG_LP          (1 << 3)
  94 #define PHY_INT_PARFAULT            (1 << 2)
  95 #define PHY_INT_AUTONEG_PAGE        (1 << 1)
  96
  97 static void imx_fec_update(IMXFECState *s);
  98
  99 /*
 100  * The MII phy could raise a GPIO to the processor which in turn
 101  * could be handled as an interrpt by the OS.
 102  * For now we don't handle any GPIO/interrupt line, so the OS will
 103  * have to poll for the PHY status.
 104  */
 105 static void phy_update_irq(IMXFECState *s)
 106 {
 107     imx_fec_update(s);
 108 }
 109
 110 static void phy_update_link(IMXFECState *s)
 111 {
 112     /* Autonegotiation status mirrors link status.  */
 113     if (qemu_get_queue(s->nic)->link_down) {
 114         PHY_PRINTF("link is down\n");
 115         s->phy_status &= ~0x0024;
 116         s->phy_int |= PHY_INT_DOWN;
 117     } else {
 118         PHY_PRINTF("link is up\n");
 119         s->phy_status |= 0x0024;
 120         s->phy_int |= PHY_INT_ENERGYON;
 121         s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
 122     }
 123     phy_update_irq(s);
 124 }
 125
 126 static void imx_fec_set_link(NetClientState *nc)
 127 {
 128     phy_update_link(IMX_FEC(qemu_get_nic_opaque(nc)));
 129 }
 130
 131 static void phy_reset(IMXFECState *s)
 132 {
 133     s->phy_status = 0x7809;
 134     s->phy_control = 0x3000;
 135     s->phy_advertise = 0x01e1;
 136     s->phy_int_mask = 0;
 137     s->phy_int = 0;
 138     phy_update_link(s);
 139 }
 140
 141 static uint32_t do_phy_read(IMXFECState *s, int reg)
 142 {
 143     uint32_t val;
 144
 145     if (reg > 31) {
 146         /* we only advertise one phy */
 147         return 0;
 148     }
 149
 150     switch (reg) {
 151     case 0:     /* Basic Control */
 152         val = s->phy_control;
 153         break;
 154     case 1:     /* Basic Status */
 155         val = s->phy_status;
 156         break;
 157     case 2:     /* ID1 */
 158         val = 0x0007;
 159         break;
 160     case 3:     /* ID2 */
 161         val = 0xc0d1;
 162         break;
 163     case 4:     /* Auto-neg advertisement */
 164         val = s->phy_advertise;
 165         break;
 166     case 5:     /* Auto-neg Link Partner Ability */
 167         val = 0x0f71;
 168         break;
 169     case 6:     /* Auto-neg Expansion */
 170         val = 1;
 171         break;
 172     case 29:    /* Interrupt source.  */
 173         val = s->phy_int;
 174         s->phy_int = 0;
 175         phy_update_irq(s);
 176         break;
 177     case 30:    /* Interrupt mask */
 178         val = s->phy_int_mask;
 179         break;
 180     case 17:
 181     case 18:
 182     case 27:
 183     case 31:
 184         qemu_log_mask(LOG_UNIMP, "[%s.phy]%s: reg %d not implemented\n",
 185                       TYPE_IMX_FEC, __func__, reg);
 186         val = 0;
 187         break;
 188     default:
 189         qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad address at offset %d\n",
 190                       TYPE_IMX_FEC, __func__, reg);
 191         val = 0;
 192         break;
 193     }
 194
 195     PHY_PRINTF("read 0x%04x @ %d\n", val, reg);
 196
 197     return val;
 198 }
 199
 200 static void do_phy_write(IMXFECState *s, int reg, uint32_t val)
 201 {
 202     PHY_PRINTF("write 0x%04x @ %d\n", val, reg);
 203
 204     if (reg > 31) {
 205         /* we only advertise one phy */
 206         return;
 207     }
 208
 209     switch (reg) {
 210     case 0:     /* Basic Control */
 211         if (val & 0x8000) {
 212             phy_reset(s);
 213         } else {
 214             s->phy_control = val & 0x7980;
 215             /* Complete autonegotiation immediately.  */
 216             if (val & 0x1000) {
 217                 s->phy_status |= 0x0020;
 218             }
 219         }
 220         break;
 221     case 4:     /* Auto-neg advertisement */
 222         s->phy_advertise = (val & 0x2d7f) | 0x80;
 223         break;
 224     case 30:    /* Interrupt mask */
 225         s->phy_int_mask = val & 0xff;
 226         phy_update_irq(s);
 227         break;
 228     case 17:
 229     case 18:
 230     case 27:
 231     case 31:
 232         qemu_log_mask(LOG_UNIMP, "[%s.phy)%s: reg %d not implemented\n",
 233                       TYPE_IMX_FEC, __func__, reg);
 234         break;
 235     default:
 236         qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad address at offset %d\n",
 237                       TYPE_IMX_FEC, __func__, reg);
 238         break;
 239     }
 240 }
 241
 242 static void imx_fec_read_bd(IMXFECBufDesc *bd, dma_addr_t addr)
 243 {
 244     dma_memory_read(&address_space_memory, addr, bd, sizeof(*bd));
 245 }
 246
 247 static void imx_fec_write_bd(IMXFECBufDesc *bd, dma_addr_t addr)
 248 {
 249     dma_memory_write(&address_space_memory, addr, bd, sizeof(*bd));
 250 }
 251
 252 static void imx_fec_update(IMXFECState *s)
 253 {
 254     uint32_t active;
 255     uint32_t changed;
 256
 257     active = s->eir & s->eimr;
 258     changed = active ^ s->irq_state;
 259     if (changed) {
 260         qemu_set_irq(s->irq, active);
 261     }
 262     s->irq_state = active;
 263 }
 264
 265 static void imx_fec_do_tx(IMXFECState *s)
 266 {
 267     int frame_size = 0;
 268     uint8_t frame[FEC_MAX_FRAME_SIZE];
 269     uint8_t *ptr = frame;
 270     uint32_t addr = s->tx_descriptor;
 271
 272     while (1) {
 273         IMXFECBufDesc bd;
 274         int len;
 275
 276         imx_fec_read_bd(&bd, addr);
 277         FEC_PRINTF("tx_bd %x flags %04x len %d data %08x\n",
 278                    addr, bd.flags, bd.length, bd.data);
 279         if ((bd.flags & FEC_BD_R) == 0) {
 280             /* Run out of descriptors to transmit.  */
 281             break;
 282         }
 283         len = bd.length;
 284         if (frame_size + len > FEC_MAX_FRAME_SIZE) {
 285             len = FEC_MAX_FRAME_SIZE - frame_size;
 286             s->eir |= FEC_INT_BABT;
 287         }
 288         dma_memory_read(&address_space_memory, bd.data, ptr, len);
 289         ptr += len;
 290         frame_size += len;
 291         if (bd.flags & FEC_BD_L) {
 292             /* Last buffer in frame.  */
 293             qemu_send_packet(qemu_get_queue(s->nic), frame, len);
 294             ptr = frame;
 295             frame_size = 0;
 296             s->eir |= FEC_INT_TXF;
 297         }
 298         s->eir |= FEC_INT_TXB;
 299         bd.flags &= ~FEC_BD_R;
 300         /* Write back the modified descriptor.  */
 301         imx_fec_write_bd(&bd, addr);
 302         /* Advance to the next descriptor.  */
 303         if ((bd.flags & FEC_BD_W) != 0) {
 304             addr = s->etdsr;
 305         } else {
 306             addr += 8;
 307         }
 308     }
 309
 310     s->tx_descriptor = addr;
 311
 312     imx_fec_update(s);
 313 }
 314
 315 static void imx_fec_enable_rx(IMXFECState *s)
 316 {
 317     IMXFECBufDesc bd;
 318     uint32_t tmp;
 319
 320     imx_fec_read_bd(&bd, s->rx_descriptor);
 321
 322     tmp = ((bd.flags & FEC_BD_E) != 0);
 323
 324     if (!tmp) {
 325         FEC_PRINTF("RX buffer full\n");
 326     } else if (!s->rx_enabled) {
 327         qemu_flush_queued_packets(qemu_get_queue(s->nic));
 328     }
 329
 330     s->rx_enabled = tmp;
 331 }
 332
 333 static void imx_fec_reset(DeviceState *d)
 334 {
 335     IMXFECState *s = IMX_FEC(d);
 336
 337     /* Reset the FEC */
 338     s->eir = 0;
 339     s->eimr = 0;
 340     s->rx_enabled = 0;
 341     s->ecr = 0;
 342     s->mscr = 0;
 343     s->mibc = 0xc0000000;
 344     s->rcr = 0x05ee0001;
 345     s->tcr = 0;
 346     s->tfwr = 0;
 347     s->frsr = 0x500;
 348     s->miigsk_cfgr = 0;
 349     s->miigsk_enr = 0x6;
 350
 351     /* We also reset the PHY */
 352     phy_reset(s);
 353 }
 354
 355 static uint64_t imx_fec_read(void *opaque, hwaddr addr, unsigned size)
 356 {
 357     IMXFECState *s = IMX_FEC(opaque);
 358
 359     FEC_PRINTF("reading from @ 0x%" HWADDR_PRIx "\n", addr);
 360
 361     switch (addr & 0x3ff) {
 362     case 0x004:
 363         return s->eir;
 364     case 0x008:
 365         return s->eimr;
 366     case 0x010:
 367         return s->rx_enabled ? (1 << 24) : 0;   /* RDAR */
 368     case 0x014:
 369         return 0;   /* TDAR */
 370     case 0x024:
 371         return s->ecr;
 372     case 0x040:
 373         return s->mmfr;
 374     case 0x044:
 375         return s->mscr;
 376     case 0x064:
 377         return s->mibc; /* MIBC */
 378     case 0x084:
 379         return s->rcr;
 380     case 0x0c4:
 381         return s->tcr;
 382     case 0x0e4:     /* PALR */
 383         return (s->conf.macaddr.a[0] << 24)
 384                | (s->conf.macaddr.a[1] << 16)
 385                | (s->conf.macaddr.a[2] << 8)
 386                | s->conf.macaddr.a[3];
 387         break;
 388     case 0x0e8:     /* PAUR */
 389         return (s->conf.macaddr.a[4] << 24)
 390                | (s->conf.macaddr.a[5] << 16)
 391                | 0x8808;
 392     case 0x0ec:
 393         return 0x10000; /* OPD */
 394     case 0x118:
 395         return 0;
 396     case 0x11c:
 397         return 0;
 398     case 0x120:
 399         return 0;
 400     case 0x124:
 401         return 0;
 402     case 0x144:
 403         return s->tfwr;
 404     case 0x14c:
 405         return 0x600;
 406     case 0x150:
 407         return s->frsr;
 408     case 0x180:
 409         return s->erdsr;
 410     case 0x184:
 411         return s->etdsr;
 412     case 0x188:
 413         return s->emrbr;
 414     case 0x300:
 415         return s->miigsk_cfgr;
 416     case 0x308:
 417         return s->miigsk_enr;
 418     default:
 419         qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
 420                       HWADDR_PRIx "\n", TYPE_IMX_FEC, __func__, addr);
 421         return 0;
 422     }
 423 }
 424
 425 static void imx_fec_write(void *opaque, hwaddr addr,
 426                           uint64_t value, unsigned size)
 427 {
 428     IMXFECState *s = IMX_FEC(opaque);
 429
 430     FEC_PRINTF("writing 0x%08x @ 0x%" HWADDR_PRIx "\n", (int)value, addr);
 431
 432     switch (addr & 0x3ff) {
 433     case 0x004: /* EIR */
 434         s->eir &= ~value;
 435         break;
 436     case 0x008: /* EIMR */
 437         s->eimr = value;
 438         break;
 439     case 0x010: /* RDAR */
 440         if ((s->ecr & FEC_EN) && !s->rx_enabled) {
 441             imx_fec_enable_rx(s);
 442         }
 443         break;
 444     case 0x014: /* TDAR */
 445         if (s->ecr & FEC_EN) {
 446             imx_fec_do_tx(s);
 447         }
 448         break;
 449     case 0x024: /* ECR */
 450         s->ecr = value;
 451         if (value & FEC_RESET) {
 452             imx_fec_reset(DEVICE(s));
 453         }
 454         if ((s->ecr & FEC_EN) == 0) {
 455             s->rx_enabled = 0;
 456         }
 457         break;
 458     case 0x040: /* MMFR */
 459         /* store the value */
 460         s->mmfr = value;
 461         if (extract32(value, 28, 1)) {
 462             do_phy_write(s, extract32(value, 18, 9), extract32(value, 0, 16));
 463         } else {
 464             s->mmfr = do_phy_read(s, extract32(value, 18, 9));
 465         }
 466         /* raise the interrupt as the PHY operation is done */
 467         s->eir |= FEC_INT_MII;
 468         break;
 469     case 0x044: /* MSCR */
 470         s->mscr = value & 0xfe;
 471         break;
 472     case 0x064: /* MIBC */
 473         /* TODO: Implement MIB.  */
 474         s->mibc = (value & 0x80000000) ? 0xc0000000 : 0;
 475         break;
 476     case 0x084: /* RCR */
 477         s->rcr = value & 0x07ff003f;
 478         /* TODO: Implement LOOP mode.  */
 479         break;
 480     case 0x0c4: /* TCR */
 481         /* We transmit immediately, so raise GRA immediately.  */
 482         s->tcr = value;
 483         if (value & 1) {
 484             s->eir |= FEC_INT_GRA;
 485         }
 486         break;
 487     case 0x0e4: /* PALR */
 488         s->conf.macaddr.a[0] = value >> 24;
 489         s->conf.macaddr.a[1] = value >> 16;
 490         s->conf.macaddr.a[2] = value >> 8;
 491         s->conf.macaddr.a[3] = value;
 492         break;
 493     case 0x0e8: /* PAUR */
 494         s->conf.macaddr.a[4] = value >> 24;
 495         s->conf.macaddr.a[5] = value >> 16;
 496         break;
 497     case 0x0ec: /* OPDR */
 498         break;
 499     case 0x118: /* IAUR */
 500     case 0x11c: /* IALR */
 501     case 0x120: /* GAUR */
 502     case 0x124: /* GALR */
 503         /* TODO: implement MAC hash filtering.  */
 504         break;
 505     case 0x144: /* TFWR */
 506         s->tfwr = value & 3;
 507         break;
 508     case 0x14c: /* FRBR */
 509         /* FRBR writes ignored.  */
 510         break;
 511     case 0x150: /* FRSR */
 512         s->frsr = (value & 0x3fc) | 0x400;
 513         break;
 514     case 0x180: /* ERDSR */
 515         s->erdsr = value & ~3;
 516         s->rx_descriptor = s->erdsr;
 517         break;
 518     case 0x184: /* ETDSR */
 519         s->etdsr = value & ~3;
 520         s->tx_descriptor = s->etdsr;
 521         break;
 522     case 0x188: /* EMRBR */
 523         s->emrbr = value & 0x7f0;
 524         break;
 525     case 0x300: /* MIIGSK_CFGR */
 526         s->miigsk_cfgr = value & 0x53;
 527         break;
 528     case 0x308: /* MIIGSK_ENR */
 529         s->miigsk_enr = (value & 0x2) ? 0x6 : 0;
 530         break;
 531     default:
 532         qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad address at offset 0x%"
 533                       HWADDR_PRIx "\n", TYPE_IMX_FEC, __func__, addr);
 534         break;
 535     }
 536
 537     imx_fec_update(s);
 538 }
 539
 540 static int imx_fec_can_receive(NetClientState *nc)
 541 {
 542     IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
 543
 544     return s->rx_enabled;
 545 }
 546
 547 static ssize_t imx_fec_receive(NetClientState *nc, const uint8_t *buf,
 548                                size_t len)
 549 {
 550     IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
 551     IMXFECBufDesc bd;
 552     uint32_t flags = 0;
 553     uint32_t addr;
 554     uint32_t crc;
 555     uint32_t buf_addr;
 556     uint8_t *crc_ptr;
 557     unsigned int buf_len;
 558     size_t size = len;
 559
 560     FEC_PRINTF("len %d\n", (int)size);
 561
 562     if (!s->rx_enabled) {
 563         qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Unexpected packet\n",
 564                       TYPE_IMX_FEC, __func__);
 565         return 0;
 566     }
 567
 568     /* 4 bytes for the CRC.  */
 569     size += 4;
 570     crc = cpu_to_be32(crc32(~0, buf, size));
 571     crc_ptr = (uint8_t *) &crc;
 572
 573     /* Huge frames are truncted.  */
 574     if (size > FEC_MAX_FRAME_SIZE) {
 575         size = FEC_MAX_FRAME_SIZE;
 576         flags |= FEC_BD_TR | FEC_BD_LG;
 577     }
 578
 579     /* Frames larger than the user limit just set error flags.  */
 580     if (size > (s->rcr >> 16)) {
 581         flags |= FEC_BD_LG;
 582     }
 583
 584     addr = s->rx_descriptor;
 585     while (size > 0) {
 586         imx_fec_read_bd(&bd, addr);
 587         if ((bd.flags & FEC_BD_E) == 0) {
 588             /* No descriptors available.  Bail out.  */
 589             /*
 590              * FIXME: This is wrong. We should probably either
 591              * save the remainder for when more RX buffers are
 592              * available, or flag an error.
 593              */
 594             qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Lost end of frame\n",
 595                           TYPE_IMX_FEC, __func__);
 596             break;
 597         }
 598         buf_len = (size <= s->emrbr) ? size : s->emrbr;
 599         bd.length = buf_len;
 600         size -= buf_len;
 601
 602         FEC_PRINTF("rx_bd 0x%x length %d\n", addr, bd.length);
 603
 604         /* The last 4 bytes are the CRC.  */
 605         if (size < 4) {
 606             buf_len += size - 4;
 607         }
 608         buf_addr = bd.data;
 609         dma_memory_write(&address_space_memory, buf_addr, buf, buf_len);
 610         buf += buf_len;
 611         if (size < 4) {
 612             dma_memory_write(&address_space_memory, buf_addr + buf_len,
 613                              crc_ptr, 4 - size);
 614             crc_ptr += 4 - size;
 615         }
 616         bd.flags &= ~FEC_BD_E;
 617         if (size == 0) {
 618             /* Last buffer in frame.  */
 619             bd.flags |= flags | FEC_BD_L;
 620             FEC_PRINTF("rx frame flags %04x\n", bd.flags);
 621             s->eir |= FEC_INT_RXF;
 622         } else {
 623             s->eir |= FEC_INT_RXB;
 624         }
 625         imx_fec_write_bd(&bd, addr);
 626         /* Advance to the next descriptor.  */
 627         if ((bd.flags & FEC_BD_W) != 0) {
 628             addr = s->erdsr;
 629         } else {
 630             addr += 8;
 631         }
 632     }
 633     s->rx_descriptor = addr;
 634     imx_fec_enable_rx(s);
 635     imx_fec_update(s);
 636     return len;
 637 }
 638
 639 static const MemoryRegionOps imx_fec_ops = {
 640     .read = imx_fec_read,
 641     .write = imx_fec_write,
 642     .valid.min_access_size = 4,
 643     .valid.max_access_size = 4,
 644     .endianness = DEVICE_NATIVE_ENDIAN,
 645 };
 646
 647 static void imx_fec_cleanup(NetClientState *nc)
 648 {
 649     IMXFECState *s = IMX_FEC(qemu_get_nic_opaque(nc));
 650
 651     s->nic = NULL;
 652 }
 653
 654 static NetClientInfo net_imx_fec_info = {
 655     .type = NET_CLIENT_OPTIONS_KIND_NIC,
 656     .size = sizeof(NICState),
 657     .can_receive = imx_fec_can_receive,
 658     .receive = imx_fec_receive,
 659     .cleanup = imx_fec_cleanup,
 660     .link_status_changed = imx_fec_set_link,
 661 };
 662
 663
 664 static void imx_fec_realize(DeviceState *dev, Error **errp)
 665 {
 666     IMXFECState *s = IMX_FEC(dev);
 667     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 668
 669     memory_region_init_io(&s->iomem, OBJECT(dev), &imx_fec_ops, s,
 670                           TYPE_IMX_FEC, 0x400);
 671     sysbus_init_mmio(sbd, &s->iomem);
 672     sysbus_init_irq(sbd, &s->irq);
 673     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 674
 675     s->conf.peers.ncs[0] = nd_table[0].netdev;
 676
 677     s->nic = qemu_new_nic(&net_imx_fec_info, &s->conf,
 678                           object_get_typename(OBJECT(dev)), DEVICE(dev)->id,
 679                           s);
 680     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 681 }
 682
 683 static Property imx_fec_properties[] = {
 684     DEFINE_NIC_PROPERTIES(IMXFECState, conf),
 685     DEFINE_PROP_END_OF_LIST(),
 686 };
 687
 688 static void imx_fec_class_init(ObjectClass *klass, void *data)
 689 {
 690     DeviceClass *dc = DEVICE_CLASS(klass);
 691
 692     dc->vmsd = &vmstate_imx_fec;
 693     dc->reset = imx_fec_reset;
 694     dc->props = imx_fec_properties;
 695     dc->realize = imx_fec_realize;
 696     dc->desc = "i.MX FEC Ethernet Controller";
 697 }
 698
 699 static const TypeInfo imx_fec_info = {
 700     .name = TYPE_IMX_FEC,
 701     .parent = TYPE_SYS_BUS_DEVICE,
 702     .instance_size = sizeof(IMXFECState),
 703     .class_init = imx_fec_class_init,
 704 };
 705
 706 static void imx_fec_register_types(void)
 707 {
 708     type_register_static(&imx_fec_info);
 709 }
 710
 711 type_init(imx_fec_register_types)