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