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