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 tsi108_eth_initialize(bd_t*);
  56 extern int tsec_initialize(bd_t*, int, char *);
  57 extern int npe_initialize(bd_t *);
  58 extern int uec_initialize(int);
  59 extern int bfin_EMAC_initialize(bd_t *);
  60 extern int atstk1000_eth_initialize(bd_t *);
  61 extern int mcffec_initialize(bd_t*);
  62
  63 static struct eth_device *eth_devices, *eth_current;
  64
  65 struct eth_device *eth_get_dev(void)
  66 {
  67         return eth_current;
  68 }
  69
  70 struct eth_device *eth_get_dev_by_name(char *devname)
  71 {
  72         struct eth_device *dev, *target_dev;
  73
  74         if (!eth_devices)
  75                 return NULL;
  76
  77         dev = eth_devices;
  78         target_dev = NULL;
  79         do {
  80                 if (strcmp(devname, dev->name) == 0) {
  81                         target_dev = dev;
  82                         break;
  83                 }
  84                 dev = dev->next;
  85         } while (dev != eth_devices);
  86
  87         return target_dev;
  88 }
  89
  90 int eth_get_dev_index (void)
  91 {
  92         struct eth_device *dev;
  93         int num = 0;
  94
  95         if (!eth_devices) {
  96                 return (-1);
  97         }
  98
  99         for (dev = eth_devices; dev; dev = dev->next) {
 100                 if (dev == eth_current)
 101                         break;
 102                 ++num;
 103         }
 104
 105         if (dev) {
 106                 return (num);
 107         }
 108
 109         return (0);
 110 }
 111
 112 int eth_register(struct eth_device* dev)
 113 {
 114         struct eth_device *d;
 115
 116         if (!eth_devices) {
 117                 eth_current = eth_devices = dev;
 118 #ifdef CONFIG_NET_MULTI
 119                 /* update current ethernet name */
 120                 {
 121                         char *act = getenv("ethact");
 122                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 123                                 setenv("ethact", eth_current->name);
 124                 }
 125 #endif
 126         } else {
 127                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 128                 d->next = dev;
 129         }
 130
 131         dev->state = ETH_STATE_INIT;
 132         dev->next  = eth_devices;
 133
 134         return 0;
 135 }
 136
 137 int eth_initialize(bd_t *bis)
 138 {
 139         char enetvar[32], env_enetaddr[6];
 140         int i, eth_number = 0;
 141         char *tmp, *end;
 142
 143         eth_devices = NULL;
 144         eth_current = NULL;
 145
 146 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 147         miiphy_init();
 148 #endif
 149
 150 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 151         mv6436x_eth_initialize(bis);
 152 #endif
 153 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 154         mv6446x_eth_initialize(bis);
 155 #endif
 156 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 157         ppc_4xx_eth_initialize(bis);
 158 #endif
 159 #ifdef CONFIG_INCA_IP_SWITCH
 160         inca_switch_initialize(bis);
 161 #endif
 162 #ifdef CONFIG_PLB2800_ETHER
 163         plb2800_eth_initialize(bis);
 164 #endif
 165 #ifdef SCC_ENET
 166         scc_initialize(bis);
 167 #endif
 168 #if defined(CONFIG_MPC5xxx_FEC)
 169         mpc5xxx_fec_initialize(bis);
 170 #endif
 171 #if defined(CONFIG_MPC8220_FEC)
 172         mpc8220_fec_initialize(bis);
 173 #endif
 174 #if defined(CONFIG_SK98)
 175         skge_initialize(bis);
 176 #endif
 177 #if defined(CONFIG_MPC85XX_TSEC1)
 178         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 179 #elif defined(CONFIG_MPC83XX_TSEC1)
 180         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 181 #endif
 182 #if defined(CONFIG_MPC85XX_TSEC2)
 183         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 184 #elif defined(CONFIG_MPC83XX_TSEC2)
 185         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
 186 #endif
 187 #if defined(CONFIG_MPC85XX_FEC)
 188         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 189 #else
 190 #    if defined(CONFIG_MPC85XX_TSEC3)
 191         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 192 #    elif defined(CONFIG_MPC83XX_TSEC3)
 193         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 194 #    endif
 195 #    if defined(CONFIG_MPC85XX_TSEC4)
 196         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 197 #    elif defined(CONFIG_MPC83XX_TSEC4)
 198         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 199 #    endif
 200 #endif
 201 #if defined(CONFIG_UEC_ETH1)
 202         uec_initialize(0);
 203 #endif
 204 #if defined(CONFIG_UEC_ETH2)
 205         uec_initialize(1);
 206 #endif
 207 #if defined(CONFIG_MPC86XX_TSEC1)
 208        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
 209 #endif
 210
 211 #if defined(CONFIG_MPC86XX_TSEC2)
 212        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
 213 #endif
 214
 215 #if defined(CONFIG_MPC86XX_TSEC3)
 216        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
 217 #endif
 218
 219 #if defined(CONFIG_MPC86XX_TSEC4)
 220        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
 221 #endif
 222
 223 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 224         fec_initialize(bis);
 225 #endif
 226 #if defined(CONFIG_AU1X00)
 227         au1x00_enet_initialize(bis);
 228 #endif
 229 #if defined(CONFIG_IXP4XX_NPE)
 230         npe_initialize(bis);
 231 #endif
 232 #ifdef CONFIG_E1000
 233         e1000_initialize(bis);
 234 #endif
 235 #ifdef CONFIG_EEPRO100
 236         eepro100_initialize(bis);
 237 #endif
 238 #ifdef CONFIG_TULIP
 239         dc21x4x_initialize(bis);
 240 #endif
 241 #ifdef CONFIG_3COM
 242         eth_3com_initialize(bis);
 243 #endif
 244 #ifdef CONFIG_PCNET
 245         pcnet_initialize(bis);
 246 #endif
 247 #ifdef CFG_GT_6426x
 248         gt6426x_eth_initialize(bis);
 249 #endif
 250 #ifdef CONFIG_NATSEMI
 251         natsemi_initialize(bis);
 252 #endif
 253 #ifdef CONFIG_NS8382X
 254         ns8382x_initialize(bis);
 255 #endif
 256 #if defined(CONFIG_TSI108_ETH)
 257         tsi108_eth_initialize(bis);
 258 #endif
 259 #if defined(CONFIG_RTL8139)
 260         rtl8139_initialize(bis);
 261 #endif
 262 #if defined(CONFIG_RTL8169)
 263         rtl8169_initialize(bis);
 264 #endif
 265 #if defined(CONFIG_BF537)
 266         bfin_EMAC_initialize(bis);
 267 #endif
 268 #if defined(CONFIG_ATSTK1000)
 269         atstk1000_eth_initialize(bis);
 270 #endif
 271 #if defined(CONFIG_MCFFEC)
 272         mcffec_initialize(bis);
 273 #endif
 274
 275         if (!eth_devices) {
 276                 puts ("No ethernet found.\n");
 277         } else {
 278                 struct eth_device *dev = eth_devices;
 279                 char *ethprime = getenv ("ethprime");
 280
 281                 do {
 282                         if (eth_number)
 283                                 puts (", ");
 284
 285                         printf("%s", dev->name);
 286
 287                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 288                                 eth_current = dev;
 289                                 puts (" [PRIME]");
 290                         }
 291
 292                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 293                         tmp = getenv (enetvar);
 294
 295                         for (i=0; i<6; i++) {
 296                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 297                                 if (tmp)
 298                                         tmp = (*end) ? end+1 : end;
 299                         }
 300
 301                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 302                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 303                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 304                                 {
 305                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 306                                                 dev->name);
 307                                         printf ("Address in SROM is         "
 308                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 309                                                dev->enetaddr[0], dev->enetaddr[1],
 310                                                dev->enetaddr[2], dev->enetaddr[3],
 311                                                dev->enetaddr[4], dev->enetaddr[5]);
 312                                         printf ("Address in environment is  "
 313                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 314                                                env_enetaddr[0], env_enetaddr[1],
 315                                                env_enetaddr[2], env_enetaddr[3],
 316                                                env_enetaddr[4], env_enetaddr[5]);
 317                                 }
 318
 319                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 320                         }
 321
 322                         eth_number++;
 323                         dev = dev->next;
 324                 } while(dev != eth_devices);
 325
 326 #ifdef CONFIG_NET_MULTI
 327                 /* update current ethernet name */
 328                 if (eth_current) {
 329                         char *act = getenv("ethact");
 330                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 331                                 setenv("ethact", eth_current->name);
 332                 } else
 333                         setenv("ethact", NULL);
 334 #endif
 335
 336                 putc ('\n');
 337         }
 338
 339         return eth_number;
 340 }
 341
 342 void eth_set_enetaddr(int num, char *addr) {
 343         struct eth_device *dev;
 344         unsigned char enetaddr[6];
 345         char *end;
 346         int i;
 347
 348         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 349
 350         if (!eth_devices)
 351                 return;
 352
 353         for (i=0; i<6; i++) {
 354                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 355                 if (addr)
 356                         addr = (*end) ? end+1 : end;
 357         }
 358
 359         dev = eth_devices;
 360         while(num-- > 0) {
 361                 dev = dev->next;
 362
 363                 if (dev == eth_devices)
 364                         return;
 365         }
 366
 367         debug ( "Setting new HW address on %s\n"
 368                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 369                 dev->name,
 370                 enetaddr[0], enetaddr[1],
 371                 enetaddr[2], enetaddr[3],
 372                 enetaddr[4], enetaddr[5]);
 373
 374         memcpy(dev->enetaddr, enetaddr, 6);
 375 }
 376
 377 int eth_init(bd_t *bis)
 378 {
 379         struct eth_device* old_current;
 380
 381         if (!eth_current)
 382                 return 0;
 383
 384         old_current = eth_current;
 385         do {
 386                 debug ("Trying %s\n", eth_current->name);
 387
 388                 if (eth_current->init(eth_current, bis)) {
 389                         eth_current->state = ETH_STATE_ACTIVE;
 390
 391                         return 1;
 392                 }
 393                 debug  ("FAIL\n");
 394
 395                 eth_try_another(0);
 396         } while (old_current != eth_current);
 397
 398         return 0;
 399 }
 400
 401 void eth_halt(void)
 402 {
 403         if (!eth_current)
 404                 return;
 405
 406         eth_current->halt(eth_current);
 407
 408         eth_current->state = ETH_STATE_PASSIVE;
 409 }
 410
 411 int eth_send(volatile void *packet, int length)
 412 {
 413         if (!eth_current)
 414                 return -1;
 415
 416         return eth_current->send(eth_current, packet, length);
 417 }
 418
 419 int eth_rx(void)
 420 {
 421         if (!eth_current)
 422                 return -1;
 423
 424         return eth_current->recv(eth_current);
 425 }
 426
 427 void eth_try_another(int first_restart)
 428 {
 429         static struct eth_device *first_failed = NULL;
 430
 431         if (!eth_current)
 432                 return;
 433
 434         if (first_restart) {
 435                 first_failed = eth_current;
 436         }
 437
 438         eth_current = eth_current->next;
 439
 440 #ifdef CONFIG_NET_MULTI
 441         /* update current ethernet name */
 442         {
 443                 char *act = getenv("ethact");
 444                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 445                         setenv("ethact", eth_current->name);
 446         }
 447 #endif
 448
 449         if (first_failed == eth_current) {
 450                 NetRestartWrap = 1;
 451         }
 452 }
 453
 454 #ifdef CONFIG_NET_MULTI
 455 void eth_set_current(void)
 456 {
 457         char *act;
 458         struct eth_device* old_current;
 459
 460         if (!eth_current)       /* XXX no current */
 461                 return;
 462
 463         act = getenv("ethact");
 464         if (act != NULL) {
 465                 old_current = eth_current;
 466                 do {
 467                         if (strcmp(eth_current->name, act) == 0)
 468                                 return;
 469                         eth_current = eth_current->next;
 470                 } while (old_current != eth_current);
 471         }
 472
 473         setenv("ethact", eth_current->name);
 474 }
 475 #endif
 476
 477 char *eth_get_name (void)
 478 {
 479         return (eth_current ? eth_current->name : "unknown");
 480 }
 481 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 482
 483 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 484 extern int emac4xx_miiphy_initialize(bd_t *bis);
 485 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 486 extern int ns7520_miiphy_initialize(bd_t *bis);
 487
 488 int eth_initialize(bd_t *bis)
 489 {
 490 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 491         miiphy_init();
 492 #endif
 493
 494 #if defined(CONFIG_AT91RM9200)
 495         at91rm9200_miiphy_initialize(bis);
 496 #endif
 497 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 498         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 499         emac4xx_miiphy_initialize(bis);
 500 #endif
 501 #if defined(CONFIG_MCF52x2)
 502         mcf52x2_miiphy_initialize(bis);
 503 #endif
 504 #if defined(CONFIG_NETARM)
 505         ns7520_miiphy_initialize(bis);
 506 #endif
 507         return 0;
 508 }
 509 #endif