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
  58 static struct eth_device *eth_devices, *eth_current;
  59
  60 struct eth_device *eth_get_dev(void)
  61 {
  62         return eth_current;
  63 }
  64
  65 struct eth_device *eth_get_dev_by_name(char *devname)
  66 {
  67         struct eth_device *dev, *target_dev;
  68
  69         if (!eth_devices)
  70                 return NULL;
  71
  72         dev = eth_devices;
  73         target_dev = NULL;
  74         do {
  75                 if (strcmp(devname, dev->name) == 0) {
  76                         target_dev = dev;
  77                         break;
  78                 }
  79                 dev = dev->next;
  80         } while (dev != eth_devices);
  81
  82         return target_dev;
  83 }
  84
  85 int eth_get_dev_index (void)
  86 {
  87         struct eth_device *dev;
  88         int num = 0;
  89
  90         if (!eth_devices) {
  91                 return (-1);
  92         }
  93
  94         for (dev = eth_devices; dev; dev = dev->next) {
  95                 if (dev == eth_current)
  96                         break;
  97                 ++num;
  98         }
  99
 100         if (dev) {
 101                 return (num);
 102         }
 103
 104         return (0);
 105 }
 106
 107 int eth_register(struct eth_device* dev)
 108 {
 109         struct eth_device *d;
 110
 111         if (!eth_devices) {
 112                 eth_current = eth_devices = dev;
 113 #ifdef CONFIG_NET_MULTI
 114                 /* update current ethernet name */
 115                 {
 116                         char *act = getenv("ethact");
 117                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 118                                 setenv("ethact", eth_current->name);
 119                 }
 120 #endif
 121         } else {
 122                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 123                 d->next = dev;
 124         }
 125
 126         dev->state = ETH_STATE_INIT;
 127         dev->next  = eth_devices;
 128
 129         return 0;
 130 }
 131
 132 int eth_initialize(bd_t *bis)
 133 {
 134         char enetvar[32], env_enetaddr[6];
 135         int i, eth_number = 0;
 136         char *tmp, *end;
 137
 138         eth_devices = NULL;
 139         eth_current = NULL;
 140
 141 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 142         miiphy_init();
 143 #endif
 144
 145 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 146         mv6436x_eth_initialize(bis);
 147 #endif
 148 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 149         mv6446x_eth_initialize(bis);
 150 #endif
 151 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 152         ppc_4xx_eth_initialize(bis);
 153 #endif
 154 #ifdef CONFIG_INCA_IP_SWITCH
 155         inca_switch_initialize(bis);
 156 #endif
 157 #ifdef CONFIG_PLB2800_ETHER
 158         plb2800_eth_initialize(bis);
 159 #endif
 160 #ifdef SCC_ENET
 161         scc_initialize(bis);
 162 #endif
 163 #if defined(CONFIG_MPC5xxx_FEC)
 164         mpc5xxx_fec_initialize(bis);
 165 #endif
 166 #if defined(CONFIG_MPC8220_FEC)
 167         mpc8220_fec_initialize(bis);
 168 #endif
 169 #if defined(CONFIG_SK98)
 170         skge_initialize(bis);
 171 #endif
 172 #if defined(CONFIG_MPC85XX_TSEC1)
 173         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 174 #elif defined(CONFIG_MPC83XX_TSEC1)
 175         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 176 #endif
 177 #if defined(CONFIG_MPC85XX_TSEC2)
 178         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 179 #elif defined(CONFIG_MPC83XX_TSEC2)
 180         tsec_initialize(bis, 1, CONFIG_MPC83XX_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_MPC85XX_TSEC3)
 186         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 187 #    elif defined(CONFIG_MPC83XX_TSEC3)
 188         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 189 #    endif
 190 #    if defined(CONFIG_MPC85XX_TSEC4)
 191         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 192 #    elif defined(CONFIG_MPC83XX_TSEC4)
 193         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 194 #    endif
 195 #endif
 196 #if defined(CONFIG_MPC86XX_TSEC1)
 197        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
 198 #endif
 199
 200 #if defined(CONFIG_MPC86XX_TSEC2)
 201        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
 202 #endif
 203
 204 #if defined(CONFIG_MPC86XX_TSEC3)
 205        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
 206 #endif
 207
 208 #if defined(CONFIG_MPC86XX_TSEC4)
 209        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
 210 #endif
 211
 212 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 213         fec_initialize(bis);
 214 #endif
 215 #if defined(CONFIG_AU1X00)
 216         au1x00_enet_initialize(bis);
 217 #endif
 218 #if defined(CONFIG_IXP4XX_NPE)
 219         npe_initialize(bis);
 220 #endif
 221 #ifdef CONFIG_E1000
 222         e1000_initialize(bis);
 223 #endif
 224 #ifdef CONFIG_EEPRO100
 225         eepro100_initialize(bis);
 226 #endif
 227 #ifdef CONFIG_TULIP
 228         dc21x4x_initialize(bis);
 229 #endif
 230 #ifdef CONFIG_3COM
 231         eth_3com_initialize(bis);
 232 #endif
 233 #ifdef CONFIG_PCNET
 234         pcnet_initialize(bis);
 235 #endif
 236 #ifdef CFG_GT_6426x
 237         gt6426x_eth_initialize(bis);
 238 #endif
 239 #ifdef CONFIG_NATSEMI
 240         natsemi_initialize(bis);
 241 #endif
 242 #ifdef CONFIG_NS8382X
 243         ns8382x_initialize(bis);
 244 #endif
 245 #if defined(CONFIG_RTL8139)
 246         rtl8139_initialize(bis);
 247 #endif
 248 #if defined(CONFIG_RTL8169)
 249         rtl8169_initialize(bis);
 250 #endif
 251
 252         if (!eth_devices) {
 253                 puts ("No ethernet found.\n");
 254         } else {
 255                 struct eth_device *dev = eth_devices;
 256                 char *ethprime = getenv ("ethprime");
 257
 258                 do {
 259                         if (eth_number)
 260                                 puts (", ");
 261
 262                         printf("%s", dev->name);
 263
 264                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 265                                 eth_current = dev;
 266                                 puts (" [PRIME]");
 267                         }
 268
 269                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 270                         tmp = getenv (enetvar);
 271
 272                         for (i=0; i<6; i++) {
 273                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 274                                 if (tmp)
 275                                         tmp = (*end) ? end+1 : end;
 276                         }
 277
 278                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 279                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 280                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 281                                 {
 282                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 283                                                 dev->name);
 284                                         printf ("Address in SROM is         "
 285                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 286                                                dev->enetaddr[0], dev->enetaddr[1],
 287                                                dev->enetaddr[2], dev->enetaddr[3],
 288                                                dev->enetaddr[4], dev->enetaddr[5]);
 289                                         printf ("Address in environment is  "
 290                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 291                                                env_enetaddr[0], env_enetaddr[1],
 292                                                env_enetaddr[2], env_enetaddr[3],
 293                                                env_enetaddr[4], env_enetaddr[5]);
 294                                 }
 295
 296                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 297                         }
 298
 299                         eth_number++;
 300                         dev = dev->next;
 301                 } while(dev != eth_devices);
 302
 303 #ifdef CONFIG_NET_MULTI
 304                 /* update current ethernet name */
 305                 if (eth_current) {
 306                         char *act = getenv("ethact");
 307                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 308                                 setenv("ethact", eth_current->name);
 309                 } else
 310                         setenv("ethact", NULL);
 311 #endif
 312
 313                 putc ('\n');
 314         }
 315
 316         return eth_number;
 317 }
 318
 319 void eth_set_enetaddr(int num, char *addr) {
 320         struct eth_device *dev;
 321         unsigned char enetaddr[6];
 322         char *end;
 323         int i;
 324
 325         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 326
 327         if (!eth_devices)
 328                 return;
 329
 330         for (i=0; i<6; i++) {
 331                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 332                 if (addr)
 333                         addr = (*end) ? end+1 : end;
 334         }
 335
 336         dev = eth_devices;
 337         while(num-- > 0) {
 338                 dev = dev->next;
 339
 340                 if (dev == eth_devices)
 341                         return;
 342         }
 343
 344         debug ( "Setting new HW address on %s\n"
 345                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 346                 dev->name,
 347                 enetaddr[0], enetaddr[1],
 348                 enetaddr[2], enetaddr[3],
 349                 enetaddr[4], enetaddr[5]);
 350
 351         memcpy(dev->enetaddr, enetaddr, 6);
 352 }
 353
 354 int eth_init(bd_t *bis)
 355 {
 356         struct eth_device* old_current;
 357
 358         if (!eth_current)
 359                 return 0;
 360
 361         old_current = eth_current;
 362         do {
 363                 debug ("Trying %s\n", eth_current->name);
 364
 365                 if (eth_current->init(eth_current, bis)) {
 366                         eth_current->state = ETH_STATE_ACTIVE;
 367
 368                         return 1;
 369                 }
 370                 debug  ("FAIL\n");
 371
 372                 eth_try_another(0);
 373         } while (old_current != eth_current);
 374
 375         return 0;
 376 }
 377
 378 void eth_halt(void)
 379 {
 380         if (!eth_current)
 381                 return;
 382
 383         eth_current->halt(eth_current);
 384
 385         eth_current->state = ETH_STATE_PASSIVE;
 386 }
 387
 388 int eth_send(volatile void *packet, int length)
 389 {
 390         if (!eth_current)
 391                 return -1;
 392
 393         return eth_current->send(eth_current, packet, length);
 394 }
 395
 396 int eth_rx(void)
 397 {
 398         if (!eth_current)
 399                 return -1;
 400
 401         return eth_current->recv(eth_current);
 402 }
 403
 404 void eth_try_another(int first_restart)
 405 {
 406         static struct eth_device *first_failed = NULL;
 407
 408         if (!eth_current)
 409                 return;
 410
 411         if (first_restart) {
 412                 first_failed = eth_current;
 413         }
 414
 415         eth_current = eth_current->next;
 416
 417 #ifdef CONFIG_NET_MULTI
 418         /* update current ethernet name */
 419         {
 420                 char *act = getenv("ethact");
 421                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 422                         setenv("ethact", eth_current->name);
 423         }
 424 #endif
 425
 426         if (first_failed == eth_current) {
 427                 NetRestartWrap = 1;
 428         }
 429 }
 430
 431 #ifdef CONFIG_NET_MULTI
 432 void eth_set_current(void)
 433 {
 434         char *act;
 435         struct eth_device* old_current;
 436
 437         if (!eth_current)       /* XXX no current */
 438                 return;
 439
 440         act = getenv("ethact");
 441         if (act != NULL) {
 442                 old_current = eth_current;
 443                 do {
 444                         if (strcmp(eth_current->name, act) == 0)
 445                                 return;
 446                         eth_current = eth_current->next;
 447                 } while (old_current != eth_current);
 448         }
 449
 450         setenv("ethact", eth_current->name);
 451 }
 452 #endif
 453
 454 char *eth_get_name (void)
 455 {
 456         return (eth_current ? eth_current->name : "unknown");
 457 }
 458 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 459
 460 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 461 extern int emac4xx_miiphy_initialize(bd_t *bis);
 462 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 463 extern int ns7520_miiphy_initialize(bd_t *bis);
 464
 465 int eth_initialize(bd_t *bis)
 466 {
 467 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 468         miiphy_init();
 469 #endif
 470
 471 #if defined(CONFIG_AT91RM9200)
 472         at91rm9200_miiphy_initialize(bis);
 473 #endif
 474 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 475         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 476         emac4xx_miiphy_initialize(bis);
 477 #endif
 478 #if defined(CONFIG_MCF52x2)
 479         mcf52x2_miiphy_initialize(bis);
 480 #endif
 481 #if defined(CONFIG_NETARM)
 482         ns7520_miiphy_initialize(bis);
 483 #endif
 484         return 0;
 485 }
 486 #endif