net/eth.c

   1 /*
   2  * (C) Copyright 2001-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <command.h>
  26 #include <net.h>
  27 #include <miiphy.h>
  28
  29 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
  30
  31 #ifdef CFG_GT_6426x
  32 extern int gt6426x_eth_initialize(bd_t *bis);
  33 #endif
  34
  35 extern int au1x00_enet_initialize(bd_t*);
  36 extern int dc21x4x_initialize(bd_t*);
  37 extern int e1000_initialize(bd_t*);
  38 extern int eepro100_initialize(bd_t*);
  39 extern int eth_3com_initialize(bd_t*);
  40 extern int fec_initialize(bd_t*);
  41 extern int inca_switch_initialize(bd_t*);
  42 extern int mpc5xxx_fec_initialize(bd_t*);
  43 extern int mpc8220_fec_initialize(bd_t*);
  44 extern int mv6436x_eth_initialize(bd_t *);
  45 extern int mv6446x_eth_initialize(bd_t *);
  46 extern int natsemi_initialize(bd_t*);
  47 extern int ns8382x_initialize(bd_t*);
  48 extern int pcnet_initialize(bd_t*);
  49 extern int plb2800_eth_initialize(bd_t*);
  50 extern int ppc_4xx_eth_initialize(bd_t *);
  51 extern int rtl8139_initialize(bd_t*);
  52 extern int rtl8169_initialize(bd_t*);
  53 extern int scc_initialize(bd_t*);
  54 extern int skge_initialize(bd_t*);
  55 extern int tsec_initialize(bd_t*, int, char *);
  56 extern int npe_initialize(bd_t *);
  57 extern int uec_initialize(int);
  58
  59 static struct eth_device *eth_devices, *eth_current;
  60
  61 struct eth_device *eth_get_dev(void)
  62 {
  63         return eth_current;
  64 }
  65
  66 struct eth_device *eth_get_dev_by_name(char *devname)
  67 {
  68         struct eth_device *dev, *target_dev;
  69
  70         if (!eth_devices)
  71                 return NULL;
  72
  73         dev = eth_devices;
  74         target_dev = NULL;
  75         do {
  76                 if (strcmp(devname, dev->name) == 0) {
  77                         target_dev = dev;
  78                         break;
  79                 }
  80                 dev = dev->next;
  81         } while (dev != eth_devices);
  82
  83         return target_dev;
  84 }
  85
  86 int eth_get_dev_index (void)
  87 {
  88         struct eth_device *dev;
  89         int num = 0;
  90
  91         if (!eth_devices) {
  92                 return (-1);
  93         }
  94
  95         for (dev = eth_devices; dev; dev = dev->next) {
  96                 if (dev == eth_current)
  97                         break;
  98                 ++num;
  99         }
 100
 101         if (dev) {
 102                 return (num);
 103         }
 104
 105         return (0);
 106 }
 107
 108 int eth_register(struct eth_device* dev)
 109 {
 110         struct eth_device *d;
 111
 112         if (!eth_devices) {
 113                 eth_current = eth_devices = dev;
 114 #ifdef CONFIG_NET_MULTI
 115                 /* update current ethernet name */
 116                 {
 117                         char *act = getenv("ethact");
 118                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 119                                 setenv("ethact", eth_current->name);
 120                 }
 121 #endif
 122         } else {
 123                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 124                 d->next = dev;
 125         }
 126
 127         dev->state = ETH_STATE_INIT;
 128         dev->next  = eth_devices;
 129
 130         return 0;
 131 }
 132
 133 int eth_initialize(bd_t *bis)
 134 {
 135         char enetvar[32], env_enetaddr[6];
 136         int i, eth_number = 0;
 137         char *tmp, *end;
 138
 139         eth_devices = NULL;
 140         eth_current = NULL;
 141
 142 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 143         miiphy_init();
 144 #endif
 145
 146 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 147         mv6436x_eth_initialize(bis);
 148 #endif
 149 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 150         mv6446x_eth_initialize(bis);
 151 #endif
 152 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 153         ppc_4xx_eth_initialize(bis);
 154 #endif
 155 #ifdef CONFIG_INCA_IP_SWITCH
 156         inca_switch_initialize(bis);
 157 #endif
 158 #ifdef CONFIG_PLB2800_ETHER
 159         plb2800_eth_initialize(bis);
 160 #endif
 161 #ifdef SCC_ENET
 162         scc_initialize(bis);
 163 #endif
 164 #if defined(CONFIG_MPC5xxx_FEC)
 165         mpc5xxx_fec_initialize(bis);
 166 #endif
 167 #if defined(CONFIG_MPC8220_FEC)
 168         mpc8220_fec_initialize(bis);
 169 #endif
 170 #if defined(CONFIG_SK98)
 171         skge_initialize(bis);
 172 #endif
 173 #if defined(CONFIG_MPC85XX_TSEC1)
 174         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 175 #elif defined(CONFIG_MPC83XX_TSEC1)
 176         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 177 #endif
 178 #if defined(CONFIG_MPC85XX_TSEC2)
 179         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 180 #elif defined(CONFIG_MPC83XX_TSEC2)
 181         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
 182 #endif
 183 #if defined(CONFIG_MPC85XX_FEC)
 184         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 185 #else
 186 #    if defined(CONFIG_MPC85XX_TSEC3)
 187         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 188 #    elif defined(CONFIG_MPC83XX_TSEC3)
 189         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 190 #    endif
 191 #    if defined(CONFIG_MPC85XX_TSEC4)
 192         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 193 #    elif defined(CONFIG_MPC83XX_TSEC4)
 194         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 195 #    endif
 196 #endif
 197 #if defined(CONFIG_UEC_ETH1)
 198         uec_initialize(0);
 199 #endif
 200 #if defined(CONFIG_UEC_ETH2)
 201         uec_initialize(1);
 202 #endif
 203 #if defined(CONFIG_MPC86XX_TSEC1)
 204        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
 205 #endif
 206
 207 #if defined(CONFIG_MPC86XX_TSEC2)
 208        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
 209 #endif
 210
 211 #if defined(CONFIG_MPC86XX_TSEC3)
 212        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
 213 #endif
 214
 215 #if defined(CONFIG_MPC86XX_TSEC4)
 216        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
 217 #endif
 218
 219 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 220         fec_initialize(bis);
 221 #endif
 222 #if defined(CONFIG_AU1X00)
 223         au1x00_enet_initialize(bis);
 224 #endif
 225 #if defined(CONFIG_IXP4XX_NPE)
 226         npe_initialize(bis);
 227 #endif
 228 #ifdef CONFIG_E1000
 229         e1000_initialize(bis);
 230 #endif
 231 #ifdef CONFIG_EEPRO100
 232         eepro100_initialize(bis);
 233 #endif
 234 #ifdef CONFIG_TULIP
 235         dc21x4x_initialize(bis);
 236 #endif
 237 #ifdef CONFIG_3COM
 238         eth_3com_initialize(bis);
 239 #endif
 240 #ifdef CONFIG_PCNET
 241         pcnet_initialize(bis);
 242 #endif
 243 #ifdef CFG_GT_6426x
 244         gt6426x_eth_initialize(bis);
 245 #endif
 246 #ifdef CONFIG_NATSEMI
 247         natsemi_initialize(bis);
 248 #endif
 249 #ifdef CONFIG_NS8382X
 250         ns8382x_initialize(bis);
 251 #endif
 252 #if defined(CONFIG_RTL8139)
 253         rtl8139_initialize(bis);
 254 #endif
 255 #if defined(CONFIG_RTL8169)
 256         rtl8169_initialize(bis);
 257 #endif
 258
 259         if (!eth_devices) {
 260                 puts ("No ethernet found.\n");
 261         } else {
 262                 struct eth_device *dev = eth_devices;
 263                 char *ethprime = getenv ("ethprime");
 264
 265                 do {
 266                         if (eth_number)
 267                                 puts (", ");
 268
 269                         printf("%s", dev->name);
 270
 271                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 272                                 eth_current = dev;
 273                                 puts (" [PRIME]");
 274                         }
 275
 276                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 277                         tmp = getenv (enetvar);
 278
 279                         for (i=0; i<6; i++) {
 280                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 281                                 if (tmp)
 282                                         tmp = (*end) ? end+1 : end;
 283                         }
 284
 285                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 286                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 287                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 288                                 {
 289                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 290                                                 dev->name);
 291                                         printf ("Address in SROM is         "
 292                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 293                                                dev->enetaddr[0], dev->enetaddr[1],
 294                                                dev->enetaddr[2], dev->enetaddr[3],
 295                                                dev->enetaddr[4], dev->enetaddr[5]);
 296                                         printf ("Address in environment is  "
 297                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 298                                                env_enetaddr[0], env_enetaddr[1],
 299                                                env_enetaddr[2], env_enetaddr[3],
 300                                                env_enetaddr[4], env_enetaddr[5]);
 301                                 }
 302
 303                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 304                         }
 305
 306                         eth_number++;
 307                         dev = dev->next;
 308                 } while(dev != eth_devices);
 309
 310 #ifdef CONFIG_NET_MULTI
 311                 /* update current ethernet name */
 312                 if (eth_current) {
 313                         char *act = getenv("ethact");
 314                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 315                                 setenv("ethact", eth_current->name);
 316                 } else
 317                         setenv("ethact", NULL);
 318 #endif
 319
 320                 putc ('\n');
 321         }
 322
 323         return eth_number;
 324 }
 325
 326 void eth_set_enetaddr(int num, char *addr) {
 327         struct eth_device *dev;
 328         unsigned char enetaddr[6];
 329         char *end;
 330         int i;
 331
 332         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 333
 334         if (!eth_devices)
 335                 return;
 336
 337         for (i=0; i<6; i++) {
 338                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 339                 if (addr)
 340                         addr = (*end) ? end+1 : end;
 341         }
 342
 343         dev = eth_devices;
 344         while(num-- > 0) {
 345                 dev = dev->next;
 346
 347                 if (dev == eth_devices)
 348                         return;
 349         }
 350
 351         debug ( "Setting new HW address on %s\n"
 352                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 353                 dev->name,
 354                 enetaddr[0], enetaddr[1],
 355                 enetaddr[2], enetaddr[3],
 356                 enetaddr[4], enetaddr[5]);
 357
 358         memcpy(dev->enetaddr, enetaddr, 6);
 359 }
 360
 361 int eth_init(bd_t *bis)
 362 {
 363         struct eth_device* old_current;
 364
 365         if (!eth_current)
 366                 return 0;
 367
 368         old_current = eth_current;
 369         do {
 370                 debug ("Trying %s\n", eth_current->name);
 371
 372                 if (eth_current->init(eth_current, bis)) {
 373                         eth_current->state = ETH_STATE_ACTIVE;
 374
 375                         return 1;
 376                 }
 377                 debug  ("FAIL\n");
 378
 379                 eth_try_another(0);
 380         } while (old_current != eth_current);
 381
 382         return 0;
 383 }
 384
 385 void eth_halt(void)
 386 {
 387         if (!eth_current)
 388                 return;
 389
 390         eth_current->halt(eth_current);
 391
 392         eth_current->state = ETH_STATE_PASSIVE;
 393 }
 394
 395 int eth_send(volatile void *packet, int length)
 396 {
 397         if (!eth_current)
 398                 return -1;
 399
 400         return eth_current->send(eth_current, packet, length);
 401 }
 402
 403 int eth_rx(void)
 404 {
 405         if (!eth_current)
 406                 return -1;
 407
 408         return eth_current->recv(eth_current);
 409 }
 410
 411 void eth_try_another(int first_restart)
 412 {
 413         static struct eth_device *first_failed = NULL;
 414
 415         if (!eth_current)
 416                 return;
 417
 418         if (first_restart) {
 419                 first_failed = eth_current;
 420         }
 421
 422         eth_current = eth_current->next;
 423
 424 #ifdef CONFIG_NET_MULTI
 425         /* update current ethernet name */
 426         {
 427                 char *act = getenv("ethact");
 428                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 429                         setenv("ethact", eth_current->name);
 430         }
 431 #endif
 432
 433         if (first_failed == eth_current) {
 434                 NetRestartWrap = 1;
 435         }
 436 }
 437
 438 #ifdef CONFIG_NET_MULTI
 439 void eth_set_current(void)
 440 {
 441         char *act;
 442         struct eth_device* old_current;
 443
 444         if (!eth_current)       /* XXX no current */
 445                 return;
 446
 447         act = getenv("ethact");
 448         if (act != NULL) {
 449                 old_current = eth_current;
 450                 do {
 451                         if (strcmp(eth_current->name, act) == 0)
 452                                 return;
 453                         eth_current = eth_current->next;
 454                 } while (old_current != eth_current);
 455         }
 456
 457         setenv("ethact", eth_current->name);
 458 }
 459 #endif
 460
 461 char *eth_get_name (void)
 462 {
 463         return (eth_current ? eth_current->name : "unknown");
 464 }
 465 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 466
 467 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 468 extern int emac4xx_miiphy_initialize(bd_t *bis);
 469 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 470 extern int ns7520_miiphy_initialize(bd_t *bis);
 471
 472 int eth_initialize(bd_t *bis)
 473 {
 474 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 475         miiphy_init();
 476 #endif
 477
 478 #if defined(CONFIG_AT91RM9200)
 479         at91rm9200_miiphy_initialize(bis);
 480 #endif
 481 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 482         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 483         emac4xx_miiphy_initialize(bis);
 484 #endif
 485 #if defined(CONFIG_MCF52x2)
 486         mcf52x2_miiphy_initialize(bis);
 487 #endif
 488 #if defined(CONFIG_NETARM)
 489         ns7520_miiphy_initialize(bis);
 490 #endif
 491         return 0;
 492 }
 493 #endif