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 extern int mcffec_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 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 147         miiphy_init();
 148 #endif
 149
 150 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 151         mv6436x_eth_initialize(bis);
 152 #endif
 153 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 154         mv6446x_eth_initialize(bis);
 155 #endif
 156 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 157         ppc_4xx_eth_initialize(bis);
 158 #endif
 159 #ifdef CONFIG_INCA_IP_SWITCH
 160         inca_switch_initialize(bis);
 161 #endif
 162 #ifdef CONFIG_PLB2800_ETHER
 163         plb2800_eth_initialize(bis);
 164 #endif
 165 #ifdef SCC_ENET
 166         scc_initialize(bis);
 167 #endif
 168 #if defined(CONFIG_MPC5xxx_FEC)
 169         mpc5xxx_fec_initialize(bis);
 170 #endif
 171 #if defined(CONFIG_MPC8220_FEC)
 172         mpc8220_fec_initialize(bis);
 173 #endif
 174 #if defined(CONFIG_SK98)
 175         skge_initialize(bis);
 176 #endif
 177 #if defined(CONFIG_MPC85XX_TSEC1)
 178         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 179 #elif defined(CONFIG_MPC83XX_TSEC1)
 180         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 181 #endif
 182 #if defined(CONFIG_MPC85XX_TSEC2)
 183         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 184 #elif defined(CONFIG_MPC83XX_TSEC2)
 185         tsec_initialize(bis, 1, CONFIG_MPC83XX_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_MPC85XX_TSEC3)
 191         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 192 #    elif defined(CONFIG_MPC83XX_TSEC3)
 193         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 194 #    endif
 195 #    if defined(CONFIG_MPC85XX_TSEC4)
 196         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 197 #    elif defined(CONFIG_MPC83XX_TSEC4)
 198         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 199 #    endif
 200 #endif
 201 #if defined(CONFIG_UEC_ETH1)
 202         uec_initialize(0);
 203 #endif
 204 #if defined(CONFIG_UEC_ETH2)
 205         uec_initialize(1);
 206 #endif
 207 #if defined(CONFIG_MPC86XX_TSEC1)
 208        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
 209 #endif
 210
 211 #if defined(CONFIG_MPC86XX_TSEC2)
 212        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
 213 #endif
 214
 215 #if defined(CONFIG_MPC86XX_TSEC3)
 216        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
 217 #endif
 218
 219 #if defined(CONFIG_MPC86XX_TSEC4)
 220        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
 221 #endif
 222
 223 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 224         fec_initialize(bis);
 225 #endif
 226 #if defined(CONFIG_AU1X00)
 227         au1x00_enet_initialize(bis);
 228 #endif
 229 #if defined(CONFIG_IXP4XX_NPE)
 230         npe_initialize(bis);
 231 #endif
 232 #ifdef CONFIG_E1000
 233         e1000_initialize(bis);
 234 #endif
 235 #ifdef CONFIG_EEPRO100
 236         eepro100_initialize(bis);
 237 #endif
 238 #ifdef CONFIG_TULIP
 239         dc21x4x_initialize(bis);
 240 #endif
 241 #ifdef CONFIG_3COM
 242         eth_3com_initialize(bis);
 243 #endif
 244 #ifdef CONFIG_PCNET
 245         pcnet_initialize(bis);
 246 #endif
 247 #ifdef CFG_GT_6426x
 248         gt6426x_eth_initialize(bis);
 249 #endif
 250 #ifdef CONFIG_NATSEMI
 251         natsemi_initialize(bis);
 252 #endif
 253 #ifdef CONFIG_NS8382X
 254         ns8382x_initialize(bis);
 255 #endif
 256 #if defined(CONFIG_TSI108_ETH)
 257         tsi108_eth_initialize(bis);
 258 #endif
 259 #if defined(CONFIG_RTL8139)
 260         rtl8139_initialize(bis);
 261 #endif
 262 #if defined(CONFIG_RTL8169)
 263         rtl8169_initialize(bis);
 264 #endif
 265 #if defined(CONFIG_BF537)
 266         bfin_EMAC_initialize(bis);
 267 #endif
 268 #if defined(CONFIG_ATSTK1000)
 269         atstk1000_eth_initialize(bis);
 270 #endif
 271
 272         if (!eth_devices) {
 273                 puts ("No ethernet found.\n");
 274         } else {
 275                 struct eth_device *dev = eth_devices;
 276                 char *ethprime = getenv ("ethprime");
 277
 278                 do {
 279                         if (eth_number)
 280                                 puts (", ");
 281
 282                         printf("%s", dev->name);
 283
 284                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 285                                 eth_current = dev;
 286                                 puts (" [PRIME]");
 287                         }
 288
 289                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 290                         tmp = getenv (enetvar);
 291
 292                         for (i=0; i<6; i++) {
 293                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 294                                 if (tmp)
 295                                         tmp = (*end) ? end+1 : end;
 296                         }
 297
 298                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 299                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 300                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 301                                 {
 302                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 303                                                 dev->name);
 304                                         printf ("Address in SROM is         "
 305                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 306                                                dev->enetaddr[0], dev->enetaddr[1],
 307                                                dev->enetaddr[2], dev->enetaddr[3],
 308                                                dev->enetaddr[4], dev->enetaddr[5]);
 309                                         printf ("Address in environment is  "
 310                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 311                                                env_enetaddr[0], env_enetaddr[1],
 312                                                env_enetaddr[2], env_enetaddr[3],
 313                                                env_enetaddr[4], env_enetaddr[5]);
 314                                 }
 315
 316                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 317                         }
 318
 319                         eth_number++;
 320                         dev = dev->next;
 321                 } while(dev != eth_devices);
 322
 323 #ifdef CONFIG_NET_MULTI
 324                 /* update current ethernet name */
 325                 if (eth_current) {
 326                         char *act = getenv("ethact");
 327                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 328                                 setenv("ethact", eth_current->name);
 329                 } else
 330                         setenv("ethact", NULL);
 331 #endif
 332
 333                 putc ('\n');
 334         }
 335
 336         return eth_number;
 337 }
 338
 339 void eth_set_enetaddr(int num, char *addr) {
 340         struct eth_device *dev;
 341         unsigned char enetaddr[6];
 342         char *end;
 343         int i;
 344
 345         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 346
 347         if (!eth_devices)
 348                 return;
 349
 350         for (i=0; i<6; i++) {
 351                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 352                 if (addr)
 353                         addr = (*end) ? end+1 : end;
 354         }
 355
 356         dev = eth_devices;
 357         while(num-- > 0) {
 358                 dev = dev->next;
 359
 360                 if (dev == eth_devices)
 361                         return;
 362         }
 363
 364         debug ( "Setting new HW address on %s\n"
 365                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 366                 dev->name,
 367                 enetaddr[0], enetaddr[1],
 368                 enetaddr[2], enetaddr[3],
 369                 enetaddr[4], enetaddr[5]);
 370
 371         memcpy(dev->enetaddr, enetaddr, 6);
 372 }
 373
 374 int eth_init(bd_t *bis)
 375 {
 376         struct eth_device* old_current;
 377
 378         if (!eth_current)
 379                 return 0;
 380
 381         old_current = eth_current;
 382         do {
 383                 debug ("Trying %s\n", eth_current->name);
 384
 385                 if (eth_current->init(eth_current, bis)) {
 386                         eth_current->state = ETH_STATE_ACTIVE;
 387
 388                         return 1;
 389                 }
 390                 debug  ("FAIL\n");
 391
 392                 eth_try_another(0);
 393         } while (old_current != eth_current);
 394
 395         return 0;
 396 }
 397
 398 void eth_halt(void)
 399 {
 400         if (!eth_current)
 401                 return;
 402
 403         eth_current->halt(eth_current);
 404
 405         eth_current->state = ETH_STATE_PASSIVE;
 406 }
 407
 408 int eth_send(volatile void *packet, int length)
 409 {
 410         if (!eth_current)
 411                 return -1;
 412
 413         return eth_current->send(eth_current, packet, length);
 414 }
 415
 416 int eth_rx(void)
 417 {
 418         if (!eth_current)
 419                 return -1;
 420
 421         return eth_current->recv(eth_current);
 422 }
 423
 424 void eth_try_another(int first_restart)
 425 {
 426         static struct eth_device *first_failed = NULL;
 427
 428         if (!eth_current)
 429                 return;
 430
 431         if (first_restart) {
 432                 first_failed = eth_current;
 433         }
 434
 435         eth_current = eth_current->next;
 436
 437 #ifdef CONFIG_NET_MULTI
 438         /* update current ethernet name */
 439         {
 440                 char *act = getenv("ethact");
 441                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 442                         setenv("ethact", eth_current->name);
 443         }
 444 #endif
 445
 446         if (first_failed == eth_current) {
 447                 NetRestartWrap = 1;
 448         }
 449 }
 450
 451 #ifdef CONFIG_NET_MULTI
 452 void eth_set_current(void)
 453 {
 454         char *act;
 455         struct eth_device* old_current;
 456
 457         if (!eth_current)       /* XXX no current */
 458                 return;
 459
 460         act = getenv("ethact");
 461         if (act != NULL) {
 462                 old_current = eth_current;
 463                 do {
 464                         if (strcmp(eth_current->name, act) == 0)
 465                                 return;
 466                         eth_current = eth_current->next;
 467                 } while (old_current != eth_current);
 468         }
 469
 470         setenv("ethact", eth_current->name);
 471 }
 472 #endif
 473
 474 char *eth_get_name (void)
 475 {
 476         return (eth_current ? eth_current->name : "unknown");
 477 }
 478 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 479
 480 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 481 extern int emac4xx_miiphy_initialize(bd_t *bis);
 482 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 483 extern int ns7520_miiphy_initialize(bd_t *bis);
 484
 485 int eth_initialize(bd_t *bis)
 486 {
 487 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 488         miiphy_init();
 489 #endif
 490
 491 #if defined(CONFIG_AT91RM9200)
 492         at91rm9200_miiphy_initialize(bis);
 493 #endif
 494 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 495         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 496         emac4xx_miiphy_initialize(bis);
 497 #endif
 498 #if defined(CONFIG_MCF52x2)
 499         mcf52x2_miiphy_initialize(bis);
 500 #endif
 501 #if defined(CONFIG_NETARM)
 502         ns7520_miiphy_initialize(bis);
 503 #endif
 504         return 0;
 505 }
 506 #endif