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 #ifdef CONFIG_DB64360
 146         mv6436x_eth_initialize(bis);
 147 #endif
 148 #ifdef CONFIG_CPCI750
 149         mv6436x_eth_initialize(bis);
 150 #endif
 151 #ifdef CONFIG_DB64460
 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(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 200         fec_initialize(bis);
 201 #endif
 202 #if defined(CONFIG_AU1X00)
 203         au1x00_enet_initialize(bis);
 204 #endif
 205 #if defined(CONFIG_IXP4XX_NPE)
 206         npe_initialize(bis);
 207 #endif
 208 #ifdef CONFIG_E1000
 209         e1000_initialize(bis);
 210 #endif
 211 #ifdef CONFIG_EEPRO100
 212         eepro100_initialize(bis);
 213 #endif
 214 #ifdef CONFIG_TULIP
 215         dc21x4x_initialize(bis);
 216 #endif
 217 #ifdef CONFIG_3COM
 218         eth_3com_initialize(bis);
 219 #endif
 220 #ifdef CONFIG_PCNET
 221         pcnet_initialize(bis);
 222 #endif
 223 #ifdef CFG_GT_6426x
 224         gt6426x_eth_initialize(bis);
 225 #endif
 226 #ifdef CONFIG_NATSEMI
 227         natsemi_initialize(bis);
 228 #endif
 229 #ifdef CONFIG_NS8382X
 230         ns8382x_initialize(bis);
 231 #endif
 232 #if defined(CONFIG_RTL8139)
 233         rtl8139_initialize(bis);
 234 #endif
 235 #if defined(CONFIG_RTL8169)
 236         rtl8169_initialize(bis);
 237 #endif
 238
 239         if (!eth_devices) {
 240                 puts ("No ethernet found.\n");
 241         } else {
 242                 struct eth_device *dev = eth_devices;
 243                 char *ethprime = getenv ("ethprime");
 244
 245                 do {
 246                         if (eth_number)
 247                                 puts (", ");
 248
 249                         printf("%s", dev->name);
 250
 251                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 252                                 eth_current = dev;
 253                                 puts (" [PRIME]");
 254                         }
 255
 256                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 257                         tmp = getenv (enetvar);
 258
 259                         for (i=0; i<6; i++) {
 260                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 261                                 if (tmp)
 262                                         tmp = (*end) ? end+1 : end;
 263                         }
 264
 265                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 266                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 267                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 268                                 {
 269                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 270                                                 dev->name);
 271                                         printf ("Address in SROM is         "
 272                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 273                                                dev->enetaddr[0], dev->enetaddr[1],
 274                                                dev->enetaddr[2], dev->enetaddr[3],
 275                                                dev->enetaddr[4], dev->enetaddr[5]);
 276                                         printf ("Address in environment is  "
 277                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 278                                                env_enetaddr[0], env_enetaddr[1],
 279                                                env_enetaddr[2], env_enetaddr[3],
 280                                                env_enetaddr[4], env_enetaddr[5]);
 281                                 }
 282
 283                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 284                         }
 285
 286                         eth_number++;
 287                         dev = dev->next;
 288                 } while(dev != eth_devices);
 289
 290 #ifdef CONFIG_NET_MULTI
 291                 /* update current ethernet name */
 292                 if (eth_current) {
 293                         char *act = getenv("ethact");
 294                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 295                                 setenv("ethact", eth_current->name);
 296                 } else
 297                         setenv("ethact", NULL);
 298 #endif
 299
 300                 putc ('\n');
 301         }
 302
 303         return eth_number;
 304 }
 305
 306 void eth_set_enetaddr(int num, char *addr) {
 307         struct eth_device *dev;
 308         unsigned char enetaddr[6];
 309         char *end;
 310         int i;
 311
 312         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 313
 314         if (!eth_devices)
 315                 return;
 316
 317         for (i=0; i<6; i++) {
 318                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 319                 if (addr)
 320                         addr = (*end) ? end+1 : end;
 321         }
 322
 323         dev = eth_devices;
 324         while(num-- > 0) {
 325                 dev = dev->next;
 326
 327                 if (dev == eth_devices)
 328                         return;
 329         }
 330
 331         debug ( "Setting new HW address on %s\n"
 332                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 333                 dev->name,
 334                 enetaddr[0], enetaddr[1],
 335                 enetaddr[2], enetaddr[3],
 336                 enetaddr[4], enetaddr[5]);
 337
 338         memcpy(dev->enetaddr, enetaddr, 6);
 339 }
 340
 341 int eth_init(bd_t *bis)
 342 {
 343         struct eth_device* old_current;
 344
 345         if (!eth_current)
 346                 return 0;
 347
 348         old_current = eth_current;
 349         do {
 350                 debug ("Trying %s\n", eth_current->name);
 351
 352                 if (eth_current->init(eth_current, bis)) {
 353                         eth_current->state = ETH_STATE_ACTIVE;
 354
 355                         return 1;
 356                 }
 357                 debug  ("FAIL\n");
 358
 359                 eth_try_another(0);
 360         } while (old_current != eth_current);
 361
 362         return 0;
 363 }
 364
 365 void eth_halt(void)
 366 {
 367         if (!eth_current)
 368                 return;
 369
 370         eth_current->halt(eth_current);
 371
 372         eth_current->state = ETH_STATE_PASSIVE;
 373 }
 374
 375 int eth_send(volatile void *packet, int length)
 376 {
 377         if (!eth_current)
 378                 return -1;
 379
 380         return eth_current->send(eth_current, packet, length);
 381 }
 382
 383 int eth_rx(void)
 384 {
 385         if (!eth_current)
 386                 return -1;
 387
 388         return eth_current->recv(eth_current);
 389 }
 390
 391 void eth_try_another(int first_restart)
 392 {
 393         static struct eth_device *first_failed = NULL;
 394
 395         if (!eth_current)
 396                 return;
 397
 398         if (first_restart) {
 399                 first_failed = eth_current;
 400         }
 401
 402         eth_current = eth_current->next;
 403
 404 #ifdef CONFIG_NET_MULTI
 405         /* update current ethernet name */
 406         {
 407                 char *act = getenv("ethact");
 408                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 409                         setenv("ethact", eth_current->name);
 410         }
 411 #endif
 412
 413         if (first_failed == eth_current) {
 414                 NetRestartWrap = 1;
 415         }
 416 }
 417
 418 #ifdef CONFIG_NET_MULTI
 419 void eth_set_current(void)
 420 {
 421         char *act;
 422         struct eth_device* old_current;
 423
 424         if (!eth_current)       /* XXX no current */
 425                 return;
 426
 427         act = getenv("ethact");
 428         if (act != NULL) {
 429                 old_current = eth_current;
 430                 do {
 431                         if (strcmp(eth_current->name, act) == 0)
 432                                 return;
 433                         eth_current = eth_current->next;
 434                 } while (old_current != eth_current);
 435         }
 436
 437         setenv("ethact", eth_current->name);
 438 }
 439 #endif
 440
 441 char *eth_get_name (void)
 442 {
 443         return (eth_current ? eth_current->name : "unknown");
 444 }
 445 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 446
 447 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 448 extern int emac4xx_miiphy_initialize(bd_t *bis);
 449 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 450 extern int ns7520_miiphy_initialize(bd_t *bis);
 451
 452 int eth_initialize(bd_t *bis)
 453 {
 454 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 455         miiphy_init();
 456 #endif
 457
 458 #if defined(CONFIG_AT91RM9200)
 459         at91rm9200_miiphy_initialize(bis);
 460 #endif
 461 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 462         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 463         emac4xx_miiphy_initialize(bis);
 464 #endif
 465 #if defined(CONFIG_MCF52x2)
 466         mcf52x2_miiphy_initialize(bis);
 467 #endif
 468 #if defined(CONFIG_NETARM)
 469         ns7520_miiphy_initialize(bis);
 470 #endif
 471         return 0;
 472 }
 473 #endif