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 defined(CONFIG_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) || defined(CONFIG_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_TSEC1)
 177         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 178 #endif
 179 #if defined(CONFIG_TSEC2)
 180         tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
 181 #endif
 182 #if defined(CONFIG_MPC85XX_FEC)
 183         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 184 #else
 185 #    if defined(CONFIG_TSEC3)
 186         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 187 #    endif
 188 #    if defined(CONFIG_TSEC4)
 189         tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
 190 #    endif
 191 #endif
 192 #if defined(CONFIG_UEC_ETH1)
 193         uec_initialize(0);
 194 #endif
 195 #if defined(CONFIG_UEC_ETH2)
 196         uec_initialize(1);
 197 #endif
 198
 199 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 200         fec_initialize(bis);
 201 #endif
 202 #if defined(CONFIG_AU1X00)
 203         au1x00_enet_initialize(bis);
 204 #endif
 205 #if defined(CONFIG_IXP4XX_NPE)
 206         npe_initialize(bis);
 207 #endif
 208 #ifdef CONFIG_E1000
 209         e1000_initialize(bis);
 210 #endif
 211 #ifdef CONFIG_EEPRO100
 212         eepro100_initialize(bis);
 213 #endif
 214 #ifdef CONFIG_TULIP
 215         dc21x4x_initialize(bis);
 216 #endif
 217 #ifdef CONFIG_3COM
 218         eth_3com_initialize(bis);
 219 #endif
 220 #ifdef CONFIG_PCNET
 221         pcnet_initialize(bis);
 222 #endif
 223 #ifdef CFG_GT_6426x
 224         gt6426x_eth_initialize(bis);
 225 #endif
 226 #ifdef CONFIG_NATSEMI
 227         natsemi_initialize(bis);
 228 #endif
 229 #ifdef CONFIG_NS8382X
 230         ns8382x_initialize(bis);
 231 #endif
 232 #if defined(CONFIG_TSI108_ETH)
 233         tsi108_eth_initialize(bis);
 234 #endif
 235 #if defined(CONFIG_RTL8139)
 236         rtl8139_initialize(bis);
 237 #endif
 238 #if defined(CONFIG_RTL8169)
 239         rtl8169_initialize(bis);
 240 #endif
 241 #if defined(CONFIG_BF537)
 242         bfin_EMAC_initialize(bis);
 243 #endif
 244 #if defined(CONFIG_ATSTK1000)
 245         atstk1000_eth_initialize(bis);
 246 #endif
 247
 248         if (!eth_devices) {
 249                 puts ("No ethernet found.\n");
 250         } else {
 251                 struct eth_device *dev = eth_devices;
 252                 char *ethprime = getenv ("ethprime");
 253
 254                 do {
 255                         if (eth_number)
 256                                 puts (", ");
 257
 258                         printf("%s", dev->name);
 259
 260                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 261                                 eth_current = dev;
 262                                 puts (" [PRIME]");
 263                         }
 264
 265                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 266                         tmp = getenv (enetvar);
 267
 268                         for (i=0; i<6; i++) {
 269                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 270                                 if (tmp)
 271                                         tmp = (*end) ? end+1 : end;
 272                         }
 273
 274                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 275                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 276                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 277                                 {
 278                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 279                                                 dev->name);
 280                                         printf ("Address in SROM is         "
 281                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 282                                                dev->enetaddr[0], dev->enetaddr[1],
 283                                                dev->enetaddr[2], dev->enetaddr[3],
 284                                                dev->enetaddr[4], dev->enetaddr[5]);
 285                                         printf ("Address in environment is  "
 286                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 287                                                env_enetaddr[0], env_enetaddr[1],
 288                                                env_enetaddr[2], env_enetaddr[3],
 289                                                env_enetaddr[4], env_enetaddr[5]);
 290                                 }
 291
 292                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 293                         }
 294
 295                         eth_number++;
 296                         dev = dev->next;
 297                 } while(dev != eth_devices);
 298
 299 #ifdef CONFIG_NET_MULTI
 300                 /* update current ethernet name */
 301                 if (eth_current) {
 302                         char *act = getenv("ethact");
 303                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 304                                 setenv("ethact", eth_current->name);
 305                 } else
 306                         setenv("ethact", NULL);
 307 #endif
 308
 309                 putc ('\n');
 310         }
 311
 312         return eth_number;
 313 }
 314
 315 void eth_set_enetaddr(int num, char *addr) {
 316         struct eth_device *dev;
 317         unsigned char enetaddr[6];
 318         char *end;
 319         int i;
 320
 321         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 322
 323         if (!eth_devices)
 324                 return;
 325
 326         for (i=0; i<6; i++) {
 327                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 328                 if (addr)
 329                         addr = (*end) ? end+1 : end;
 330         }
 331
 332         dev = eth_devices;
 333         while(num-- > 0) {
 334                 dev = dev->next;
 335
 336                 if (dev == eth_devices)
 337                         return;
 338         }
 339
 340         debug ( "Setting new HW address on %s\n"
 341                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 342                 dev->name,
 343                 enetaddr[0], enetaddr[1],
 344                 enetaddr[2], enetaddr[3],
 345                 enetaddr[4], enetaddr[5]);
 346
 347         memcpy(dev->enetaddr, enetaddr, 6);
 348 }
 349
 350 int eth_init(bd_t *bis)
 351 {
 352         struct eth_device* old_current;
 353
 354         if (!eth_current)
 355                 return 0;
 356
 357         old_current = eth_current;
 358         do {
 359                 debug ("Trying %s\n", eth_current->name);
 360
 361                 if (eth_current->init(eth_current, bis)) {
 362                         eth_current->state = ETH_STATE_ACTIVE;
 363
 364                         return 1;
 365                 }
 366                 debug  ("FAIL\n");
 367
 368                 eth_try_another(0);
 369         } while (old_current != eth_current);
 370
 371         return 0;
 372 }
 373
 374 void eth_halt(void)
 375 {
 376         if (!eth_current)
 377                 return;
 378
 379         eth_current->halt(eth_current);
 380
 381         eth_current->state = ETH_STATE_PASSIVE;
 382 }
 383
 384 int eth_send(volatile void *packet, int length)
 385 {
 386         if (!eth_current)
 387                 return -1;
 388
 389         return eth_current->send(eth_current, packet, length);
 390 }
 391
 392 int eth_rx(void)
 393 {
 394         if (!eth_current)
 395                 return -1;
 396
 397         return eth_current->recv(eth_current);
 398 }
 399
 400 void eth_try_another(int first_restart)
 401 {
 402         static struct eth_device *first_failed = NULL;
 403
 404         if (!eth_current)
 405                 return;
 406
 407         if (first_restart) {
 408                 first_failed = eth_current;
 409         }
 410
 411         eth_current = eth_current->next;
 412
 413 #ifdef CONFIG_NET_MULTI
 414         /* update current ethernet name */
 415         {
 416                 char *act = getenv("ethact");
 417                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 418                         setenv("ethact", eth_current->name);
 419         }
 420 #endif
 421
 422         if (first_failed == eth_current) {
 423                 NetRestartWrap = 1;
 424         }
 425 }
 426
 427 #ifdef CONFIG_NET_MULTI
 428 void eth_set_current(void)
 429 {
 430         char *act;
 431         struct eth_device* old_current;
 432
 433         if (!eth_current)       /* XXX no current */
 434                 return;
 435
 436         act = getenv("ethact");
 437         if (act != NULL) {
 438                 old_current = eth_current;
 439                 do {
 440                         if (strcmp(eth_current->name, act) == 0)
 441                                 return;
 442                         eth_current = eth_current->next;
 443                 } while (old_current != eth_current);
 444         }
 445
 446         setenv("ethact", eth_current->name);
 447 }
 448 #endif
 449
 450 char *eth_get_name (void)
 451 {
 452         return (eth_current ? eth_current->name : "unknown");
 453 }
 454 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 455
 456 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 457 extern int emac4xx_miiphy_initialize(bd_t *bis);
 458 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 459 extern int ns7520_miiphy_initialize(bd_t *bis);
 460
 461 int eth_initialize(bd_t *bis)
 462 {
 463 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 464         miiphy_init();
 465 #endif
 466
 467 #if defined(CONFIG_AT91RM9200)
 468         at91rm9200_miiphy_initialize(bis);
 469 #endif
 470 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 471         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 472         emac4xx_miiphy_initialize(bis);
 473 #endif
 474 #if defined(CONFIG_MCF52x2)
 475         mcf52x2_miiphy_initialize(bis);
 476 #endif
 477 #if defined(CONFIG_NETARM)
 478         ns7520_miiphy_initialize(bis);
 479 #endif
 480         return 0;
 481 }
 482 #endif