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 mpc512x_fec_initialize(bd_t*);
  44 extern int mpc8220_fec_initialize(bd_t*);
  45 extern int mv6436x_eth_initialize(bd_t *);
  46 extern int mv6446x_eth_initialize(bd_t *);
  47 extern int natsemi_initialize(bd_t*);
  48 extern int ns8382x_initialize(bd_t*);
  49 extern int pcnet_initialize(bd_t*);
  50 extern int plb2800_eth_initialize(bd_t*);
  51 extern int ppc_4xx_eth_initialize(bd_t *);
  52 extern int rtl8139_initialize(bd_t*);
  53 extern int rtl8169_initialize(bd_t*);
  54 extern int scc_initialize(bd_t*);
  55 extern int skge_initialize(bd_t*);
  56 extern int tsi108_eth_initialize(bd_t*);
  57 extern int tsec_initialize(bd_t*, int, char *);
  58 extern int npe_initialize(bd_t *);
  59 extern int uec_initialize(int);
  60 extern int bfin_EMAC_initialize(bd_t *);
  61 extern int atstk1000_eth_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         show_boot_progress (64);
 147 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 148         miiphy_init();
 149 #endif
 150
 151 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 152         mv6436x_eth_initialize(bis);
 153 #endif
 154 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 155         mv6446x_eth_initialize(bis);
 156 #endif
 157 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 158         ppc_4xx_eth_initialize(bis);
 159 #endif
 160 #ifdef CONFIG_INCA_IP_SWITCH
 161         inca_switch_initialize(bis);
 162 #endif
 163 #ifdef CONFIG_PLB2800_ETHER
 164         plb2800_eth_initialize(bis);
 165 #endif
 166 #ifdef SCC_ENET
 167         scc_initialize(bis);
 168 #endif
 169 #if defined(CONFIG_MPC5xxx_FEC)
 170         mpc5xxx_fec_initialize(bis);
 171 #endif
 172 #if defined(CONFIG_MPC512x_FEC)
 173         mpc512x_fec_initialize (bis);
 174 #endif
 175 #if defined(CONFIG_MPC8220_FEC)
 176         mpc8220_fec_initialize(bis);
 177 #endif
 178 #if defined(CONFIG_SK98)
 179         skge_initialize(bis);
 180 #endif
 181 #if defined(CONFIG_TSEC1)
 182         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 183 #endif
 184 #if defined(CONFIG_TSEC2)
 185         tsec_initialize(bis, 1, CONFIG_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_TSEC3)
 191         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 192 #    endif
 193 #    if defined(CONFIG_TSEC4)
 194         tsec_initialize(bis, 3, CONFIG_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
 204 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 205         fec_initialize(bis);
 206 #endif
 207 #if defined(CONFIG_AU1X00)
 208         au1x00_enet_initialize(bis);
 209 #endif
 210 #if defined(CONFIG_IXP4XX_NPE)
 211         npe_initialize(bis);
 212 #endif
 213 #ifdef CONFIG_E1000
 214         e1000_initialize(bis);
 215 #endif
 216 #ifdef CONFIG_EEPRO100
 217         eepro100_initialize(bis);
 218 #endif
 219 #ifdef CONFIG_TULIP
 220         dc21x4x_initialize(bis);
 221 #endif
 222 #ifdef CONFIG_3COM
 223         eth_3com_initialize(bis);
 224 #endif
 225 #ifdef CONFIG_PCNET
 226         pcnet_initialize(bis);
 227 #endif
 228 #ifdef CFG_GT_6426x
 229         gt6426x_eth_initialize(bis);
 230 #endif
 231 #ifdef CONFIG_NATSEMI
 232         natsemi_initialize(bis);
 233 #endif
 234 #ifdef CONFIG_NS8382X
 235         ns8382x_initialize(bis);
 236 #endif
 237 #if defined(CONFIG_TSI108_ETH)
 238         tsi108_eth_initialize(bis);
 239 #endif
 240 #if defined(CONFIG_RTL8139)
 241         rtl8139_initialize(bis);
 242 #endif
 243 #if defined(CONFIG_RTL8169)
 244         rtl8169_initialize(bis);
 245 #endif
 246 #if defined(CONFIG_BF537)
 247         bfin_EMAC_initialize(bis);
 248 #endif
 249 #if defined(CONFIG_ATSTK1000)
 250         atstk1000_eth_initialize(bis);
 251 #endif
 252
 253         if (!eth_devices) {
 254                 puts ("No ethernet found.\n");
 255                 show_boot_progress (-64);
 256         } else {
 257                 struct eth_device *dev = eth_devices;
 258                 char *ethprime = getenv ("ethprime");
 259
 260                 show_boot_progress (65);
 261                 do {
 262                         if (eth_number)
 263                                 puts (", ");
 264
 265                         printf("%s", dev->name);
 266
 267                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 268                                 eth_current = dev;
 269                                 puts (" [PRIME]");
 270                         }
 271
 272                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 273                         tmp = getenv (enetvar);
 274
 275                         for (i=0; i<6; i++) {
 276                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 277                                 if (tmp)
 278                                         tmp = (*end) ? end+1 : end;
 279                         }
 280
 281                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 282                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 283                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 284                                 {
 285                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 286                                                 dev->name);
 287                                         printf ("Address in SROM is         "
 288                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 289                                                dev->enetaddr[0], dev->enetaddr[1],
 290                                                dev->enetaddr[2], dev->enetaddr[3],
 291                                                dev->enetaddr[4], dev->enetaddr[5]);
 292                                         printf ("Address in environment is  "
 293                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 294                                                env_enetaddr[0], env_enetaddr[1],
 295                                                env_enetaddr[2], env_enetaddr[3],
 296                                                env_enetaddr[4], env_enetaddr[5]);
 297                                 }
 298
 299                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 300                         }
 301
 302                         eth_number++;
 303                         dev = dev->next;
 304                 } while(dev != eth_devices);
 305
 306 #ifdef CONFIG_NET_MULTI
 307                 /* update current ethernet name */
 308                 if (eth_current) {
 309                         char *act = getenv("ethact");
 310                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 311                                 setenv("ethact", eth_current->name);
 312                 } else
 313                         setenv("ethact", NULL);
 314 #endif
 315
 316                 putc ('\n');
 317         }
 318
 319         return eth_number;
 320 }
 321
 322 void eth_set_enetaddr(int num, char *addr) {
 323         struct eth_device *dev;
 324         unsigned char enetaddr[6];
 325         char *end;
 326         int i;
 327
 328         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 329
 330         if (!eth_devices)
 331                 return;
 332
 333         for (i=0; i<6; i++) {
 334                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 335                 if (addr)
 336                         addr = (*end) ? end+1 : end;
 337         }
 338
 339         dev = eth_devices;
 340         while(num-- > 0) {
 341                 dev = dev->next;
 342
 343                 if (dev == eth_devices)
 344                         return;
 345         }
 346
 347         debug ( "Setting new HW address on %s\n"
 348                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 349                 dev->name,
 350                 enetaddr[0], enetaddr[1],
 351                 enetaddr[2], enetaddr[3],
 352                 enetaddr[4], enetaddr[5]);
 353
 354         memcpy(dev->enetaddr, enetaddr, 6);
 355 }
 356
 357 int eth_init(bd_t *bis)
 358 {
 359         struct eth_device* old_current;
 360
 361         if (!eth_current)
 362                 return 0;
 363
 364         old_current = eth_current;
 365         do {
 366                 debug ("Trying %s\n", eth_current->name);
 367
 368                 if (eth_current->init(eth_current, bis)) {
 369                         eth_current->state = ETH_STATE_ACTIVE;
 370
 371                         return 1;
 372                 }
 373                 debug  ("FAIL\n");
 374
 375                 eth_try_another(0);
 376         } while (old_current != eth_current);
 377
 378         return 0;
 379 }
 380
 381 void eth_halt(void)
 382 {
 383         if (!eth_current)
 384                 return;
 385
 386         eth_current->halt(eth_current);
 387
 388         eth_current->state = ETH_STATE_PASSIVE;
 389 }
 390
 391 int eth_send(volatile void *packet, int length)
 392 {
 393         if (!eth_current)
 394                 return -1;
 395
 396         return eth_current->send(eth_current, packet, length);
 397 }
 398
 399 int eth_rx(void)
 400 {
 401         if (!eth_current)
 402                 return -1;
 403
 404         return eth_current->recv(eth_current);
 405 }
 406
 407 void eth_try_another(int first_restart)
 408 {
 409         static struct eth_device *first_failed = NULL;
 410
 411         if (!eth_current)
 412                 return;
 413
 414         if (first_restart) {
 415                 first_failed = eth_current;
 416         }
 417
 418         eth_current = eth_current->next;
 419
 420 #ifdef CONFIG_NET_MULTI
 421         /* update current ethernet name */
 422         {
 423                 char *act = getenv("ethact");
 424                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 425                         setenv("ethact", eth_current->name);
 426         }
 427 #endif
 428
 429         if (first_failed == eth_current) {
 430                 NetRestartWrap = 1;
 431         }
 432 }
 433
 434 #ifdef CONFIG_NET_MULTI
 435 void eth_set_current(void)
 436 {
 437         char *act;
 438         struct eth_device* old_current;
 439
 440         if (!eth_current)       /* XXX no current */
 441                 return;
 442
 443         act = getenv("ethact");
 444         if (act != NULL) {
 445                 old_current = eth_current;
 446                 do {
 447                         if (strcmp(eth_current->name, act) == 0)
 448                                 return;
 449                         eth_current = eth_current->next;
 450                 } while (old_current != eth_current);
 451         }
 452
 453         setenv("ethact", eth_current->name);
 454 }
 455 #endif
 456
 457 char *eth_get_name (void)
 458 {
 459         return (eth_current ? eth_current->name : "unknown");
 460 }
 461 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 462
 463 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 464 extern int emac4xx_miiphy_initialize(bd_t *bis);
 465 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 466 extern int ns7520_miiphy_initialize(bd_t *bis);
 467 extern int dm644x_eth_miiphy_initialize(bd_t *bis);
 468
 469
 470 int eth_initialize(bd_t *bis)
 471 {
 472 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 473         miiphy_init();
 474 #endif
 475
 476 #if defined(CONFIG_AT91RM9200)
 477         at91rm9200_miiphy_initialize(bis);
 478 #endif
 479 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 480         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 481         emac4xx_miiphy_initialize(bis);
 482 #endif
 483 #if defined(CONFIG_MCF52x2)
 484         mcf52x2_miiphy_initialize(bis);
 485 #endif
 486 #if defined(CONFIG_NETARM)
 487         ns7520_miiphy_initialize(bis);
 488 #endif
 489 #if defined(CONFIG_DRIVER_TI_EMAC)
 490         dm644x_eth_miiphy_initialize(bis);
 491 #endif
 492         return 0;
 493 }
 494 #endif