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
  62 static struct eth_device *eth_devices, *eth_current;
  63
  64 struct eth_device *eth_get_dev(void)
  65 {
  66         return eth_current;
  67 }
  68
  69 struct eth_device *eth_get_dev_by_name(char *devname)
  70 {
  71         struct eth_device *dev, *target_dev;
  72
  73         if (!eth_devices)
  74                 return NULL;
  75
  76         dev = eth_devices;
  77         target_dev = NULL;
  78         do {
  79                 if (strcmp(devname, dev->name) == 0) {
  80                         target_dev = dev;
  81                         break;
  82                 }
  83                 dev = dev->next;
  84         } while (dev != eth_devices);
  85
  86         return target_dev;
  87 }
  88
  89 int eth_get_dev_index (void)
  90 {
  91         struct eth_device *dev;
  92         int num = 0;
  93
  94         if (!eth_devices) {
  95                 return (-1);
  96         }
  97
  98         for (dev = eth_devices; dev; dev = dev->next) {
  99                 if (dev == eth_current)
 100                         break;
 101                 ++num;
 102         }
 103
 104         if (dev) {
 105                 return (num);
 106         }
 107
 108         return (0);
 109 }
 110
 111 int eth_register(struct eth_device* dev)
 112 {
 113         struct eth_device *d;
 114
 115         if (!eth_devices) {
 116                 eth_current = eth_devices = dev;
 117 #ifdef CONFIG_NET_MULTI
 118                 /* update current ethernet name */
 119                 {
 120                         char *act = getenv("ethact");
 121                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 122                                 setenv("ethact", eth_current->name);
 123                 }
 124 #endif
 125         } else {
 126                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 127                 d->next = dev;
 128         }
 129
 130         dev->state = ETH_STATE_INIT;
 131         dev->next  = eth_devices;
 132
 133         return 0;
 134 }
 135
 136 int eth_initialize(bd_t *bis)
 137 {
 138         char enetvar[32], env_enetaddr[6];
 139         int i, eth_number = 0;
 140         char *tmp, *end;
 141
 142         eth_devices = NULL;
 143         eth_current = NULL;
 144
 145         show_boot_progress (64);
 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_TSEC1)
 178         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 179 #endif
 180 #if defined(CONFIG_TSEC2)
 181         tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
 182 #endif
 183 #if defined(CONFIG_MPC85XX_FEC)
 184         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 185 #else
 186 #    if defined(CONFIG_TSEC3)
 187         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 188 #    endif
 189 #    if defined(CONFIG_TSEC4)
 190         tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
 191 #    endif
 192 #endif
 193 #if defined(CONFIG_UEC_ETH1)
 194         uec_initialize(0);
 195 #endif
 196 #if defined(CONFIG_UEC_ETH2)
 197         uec_initialize(1);
 198 #endif
 199
 200 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 201         fec_initialize(bis);
 202 #endif
 203 #if defined(CONFIG_AU1X00)
 204         au1x00_enet_initialize(bis);
 205 #endif
 206 #if defined(CONFIG_IXP4XX_NPE)
 207         npe_initialize(bis);
 208 #endif
 209 #ifdef CONFIG_E1000
 210         e1000_initialize(bis);
 211 #endif
 212 #ifdef CONFIG_EEPRO100
 213         eepro100_initialize(bis);
 214 #endif
 215 #ifdef CONFIG_TULIP
 216         dc21x4x_initialize(bis);
 217 #endif
 218 #ifdef CONFIG_3COM
 219         eth_3com_initialize(bis);
 220 #endif
 221 #ifdef CONFIG_PCNET
 222         pcnet_initialize(bis);
 223 #endif
 224 #ifdef CFG_GT_6426x
 225         gt6426x_eth_initialize(bis);
 226 #endif
 227 #ifdef CONFIG_NATSEMI
 228         natsemi_initialize(bis);
 229 #endif
 230 #ifdef CONFIG_NS8382X
 231         ns8382x_initialize(bis);
 232 #endif
 233 #if defined(CONFIG_TSI108_ETH)
 234         tsi108_eth_initialize(bis);
 235 #endif
 236 #if defined(CONFIG_RTL8139)
 237         rtl8139_initialize(bis);
 238 #endif
 239 #if defined(CONFIG_RTL8169)
 240         rtl8169_initialize(bis);
 241 #endif
 242 #if defined(CONFIG_BF537)
 243         bfin_EMAC_initialize(bis);
 244 #endif
 245 #if defined(CONFIG_ATSTK1000)
 246         atstk1000_eth_initialize(bis);
 247 #endif
 248
 249         if (!eth_devices) {
 250                 puts ("No ethernet found.\n");
 251                 show_boot_progress (-64);
 252         } else {
 253                 struct eth_device *dev = eth_devices;
 254                 char *ethprime = getenv ("ethprime");
 255
 256                 show_boot_progress (65);
 257                 do {
 258                         if (eth_number)
 259                                 puts (", ");
 260
 261                         printf("%s", dev->name);
 262
 263                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 264                                 eth_current = dev;
 265                                 puts (" [PRIME]");
 266                         }
 267
 268                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 269                         tmp = getenv (enetvar);
 270
 271                         for (i=0; i<6; i++) {
 272                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 273                                 if (tmp)
 274                                         tmp = (*end) ? end+1 : end;
 275                         }
 276
 277                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 278                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 279                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 280                                 {
 281                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 282                                                 dev->name);
 283                                         printf ("Address in SROM is         "
 284                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 285                                                dev->enetaddr[0], dev->enetaddr[1],
 286                                                dev->enetaddr[2], dev->enetaddr[3],
 287                                                dev->enetaddr[4], dev->enetaddr[5]);
 288                                         printf ("Address in environment is  "
 289                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 290                                                env_enetaddr[0], env_enetaddr[1],
 291                                                env_enetaddr[2], env_enetaddr[3],
 292                                                env_enetaddr[4], env_enetaddr[5]);
 293                                 }
 294
 295                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 296                         }
 297
 298                         eth_number++;
 299                         dev = dev->next;
 300                 } while(dev != eth_devices);
 301
 302 #ifdef CONFIG_NET_MULTI
 303                 /* update current ethernet name */
 304                 if (eth_current) {
 305                         char *act = getenv("ethact");
 306                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 307                                 setenv("ethact", eth_current->name);
 308                 } else
 309                         setenv("ethact", NULL);
 310 #endif
 311
 312                 putc ('\n');
 313         }
 314
 315         return eth_number;
 316 }
 317
 318 void eth_set_enetaddr(int num, char *addr) {
 319         struct eth_device *dev;
 320         unsigned char enetaddr[6];
 321         char *end;
 322         int i;
 323
 324         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 325
 326         if (!eth_devices)
 327                 return;
 328
 329         for (i=0; i<6; i++) {
 330                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 331                 if (addr)
 332                         addr = (*end) ? end+1 : end;
 333         }
 334
 335         dev = eth_devices;
 336         while(num-- > 0) {
 337                 dev = dev->next;
 338
 339                 if (dev == eth_devices)
 340                         return;
 341         }
 342
 343         debug ( "Setting new HW address on %s\n"
 344                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 345                 dev->name,
 346                 enetaddr[0], enetaddr[1],
 347                 enetaddr[2], enetaddr[3],
 348                 enetaddr[4], enetaddr[5]);
 349
 350         memcpy(dev->enetaddr, enetaddr, 6);
 351 }
 352
 353 int eth_init(bd_t *bis)
 354 {
 355         struct eth_device* old_current;
 356
 357         if (!eth_current)
 358                 return 0;
 359
 360         old_current = eth_current;
 361         do {
 362                 debug ("Trying %s\n", eth_current->name);
 363
 364                 if (eth_current->init(eth_current, bis)) {
 365                         eth_current->state = ETH_STATE_ACTIVE;
 366
 367                         return 1;
 368                 }
 369                 debug  ("FAIL\n");
 370
 371                 eth_try_another(0);
 372         } while (old_current != eth_current);
 373
 374         return 0;
 375 }
 376
 377 void eth_halt(void)
 378 {
 379         if (!eth_current)
 380                 return;
 381
 382         eth_current->halt(eth_current);
 383
 384         eth_current->state = ETH_STATE_PASSIVE;
 385 }
 386
 387 int eth_send(volatile void *packet, int length)
 388 {
 389         if (!eth_current)
 390                 return -1;
 391
 392         return eth_current->send(eth_current, packet, length);
 393 }
 394
 395 int eth_rx(void)
 396 {
 397         if (!eth_current)
 398                 return -1;
 399
 400         return eth_current->recv(eth_current);
 401 }
 402
 403 void eth_try_another(int first_restart)
 404 {
 405         static struct eth_device *first_failed = NULL;
 406
 407         if (!eth_current)
 408                 return;
 409
 410         if (first_restart) {
 411                 first_failed = eth_current;
 412         }
 413
 414         eth_current = eth_current->next;
 415
 416 #ifdef CONFIG_NET_MULTI
 417         /* update current ethernet name */
 418         {
 419                 char *act = getenv("ethact");
 420                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 421                         setenv("ethact", eth_current->name);
 422         }
 423 #endif
 424
 425         if (first_failed == eth_current) {
 426                 NetRestartWrap = 1;
 427         }
 428 }
 429
 430 #ifdef CONFIG_NET_MULTI
 431 void eth_set_current(void)
 432 {
 433         char *act;
 434         struct eth_device* old_current;
 435
 436         if (!eth_current)       /* XXX no current */
 437                 return;
 438
 439         act = getenv("ethact");
 440         if (act != NULL) {
 441                 old_current = eth_current;
 442                 do {
 443                         if (strcmp(eth_current->name, act) == 0)
 444                                 return;
 445                         eth_current = eth_current->next;
 446                 } while (old_current != eth_current);
 447         }
 448
 449         setenv("ethact", eth_current->name);
 450 }
 451 #endif
 452
 453 char *eth_get_name (void)
 454 {
 455         return (eth_current ? eth_current->name : "unknown");
 456 }
 457 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 458
 459 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 460 extern int emac4xx_miiphy_initialize(bd_t *bis);
 461 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 462 extern int ns7520_miiphy_initialize(bd_t *bis);
 463
 464 int eth_initialize(bd_t *bis)
 465 {
 466 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 467         miiphy_init();
 468 #endif
 469
 470 #if defined(CONFIG_AT91RM9200)
 471         at91rm9200_miiphy_initialize(bis);
 472 #endif
 473 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 474         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 475         emac4xx_miiphy_initialize(bis);
 476 #endif
 477 #if defined(CONFIG_MCF52x2)
 478         mcf52x2_miiphy_initialize(bis);
 479 #endif
 480 #if defined(CONFIG_NETARM)
 481         ns7520_miiphy_initialize(bis);
 482 #endif
 483         return 0;
 484 }
 485 #endif