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