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 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
  32 # include <status_led.h>
  33 extern void show_ethcfg_progress (int arg);
  34 # define SHOW_BOOT_PROGRESS(arg)        show_boot_progress (arg)
  35 #else
  36 # define SHOW_BOOT_PROGRESS(arg)
  37 #endif
  38
  39 #ifdef CFG_GT_6426x
  40 extern int gt6426x_eth_initialize(bd_t *bis);
  41 #endif
  42
  43 extern int au1x00_enet_initialize(bd_t*);
  44 extern int dc21x4x_initialize(bd_t*);
  45 extern int e1000_initialize(bd_t*);
  46 extern int eepro100_initialize(bd_t*);
  47 extern int eth_3com_initialize(bd_t*);
  48 extern int fec_initialize(bd_t*);
  49 extern int inca_switch_initialize(bd_t*);
  50 extern int mpc5xxx_fec_initialize(bd_t*);
  51 extern int mpc8220_fec_initialize(bd_t*);
  52 extern int mv6436x_eth_initialize(bd_t *);
  53 extern int mv6446x_eth_initialize(bd_t *);
  54 extern int natsemi_initialize(bd_t*);
  55 extern int ns8382x_initialize(bd_t*);
  56 extern int pcnet_initialize(bd_t*);
  57 extern int plb2800_eth_initialize(bd_t*);
  58 extern int ppc_4xx_eth_initialize(bd_t *);
  59 extern int rtl8139_initialize(bd_t*);
  60 extern int rtl8169_initialize(bd_t*);
  61 extern int scc_initialize(bd_t*);
  62 extern int skge_initialize(bd_t*);
  63 extern int tsi108_eth_initialize(bd_t*);
  64 extern int tsec_initialize(bd_t*, int, char *);
  65 extern int npe_initialize(bd_t *);
  66 extern int uec_initialize(int);
  67 extern int bfin_EMAC_initialize(bd_t *);
  68 extern int atstk1000_eth_initialize(bd_t *);
  69
  70 static struct eth_device *eth_devices, *eth_current;
  71
  72 struct eth_device *eth_get_dev(void)
  73 {
  74         return eth_current;
  75 }
  76
  77 struct eth_device *eth_get_dev_by_name(char *devname)
  78 {
  79         struct eth_device *dev, *target_dev;
  80
  81         if (!eth_devices)
  82                 return NULL;
  83
  84         dev = eth_devices;
  85         target_dev = NULL;
  86         do {
  87                 if (strcmp(devname, dev->name) == 0) {
  88                         target_dev = dev;
  89                         break;
  90                 }
  91                 dev = dev->next;
  92         } while (dev != eth_devices);
  93
  94         return target_dev;
  95 }
  96
  97 int eth_get_dev_index (void)
  98 {
  99         struct eth_device *dev;
 100         int num = 0;
 101
 102         if (!eth_devices) {
 103                 return (-1);
 104         }
 105
 106         for (dev = eth_devices; dev; dev = dev->next) {
 107                 if (dev == eth_current)
 108                         break;
 109                 ++num;
 110         }
 111
 112         if (dev) {
 113                 return (num);
 114         }
 115
 116         return (0);
 117 }
 118
 119 int eth_register(struct eth_device* dev)
 120 {
 121         struct eth_device *d;
 122
 123         if (!eth_devices) {
 124                 eth_current = eth_devices = dev;
 125 #ifdef CONFIG_NET_MULTI
 126                 /* update current ethernet name */
 127                 {
 128                         char *act = getenv("ethact");
 129                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 130                                 setenv("ethact", eth_current->name);
 131                 }
 132 #endif
 133         } else {
 134                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 135                 d->next = dev;
 136         }
 137
 138         dev->state = ETH_STATE_INIT;
 139         dev->next  = eth_devices;
 140
 141         return 0;
 142 }
 143
 144 int eth_initialize(bd_t *bis)
 145 {
 146         char enetvar[32], env_enetaddr[6];
 147         int i, eth_number = 0;
 148         char *tmp, *end;
 149
 150         eth_devices = NULL;
 151         eth_current = NULL;
 152
 153         SHOW_BOOT_PROGRESS(64);
 154 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 155         miiphy_init();
 156 #endif
 157
 158 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 159         mv6436x_eth_initialize(bis);
 160 #endif
 161 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 162         mv6446x_eth_initialize(bis);
 163 #endif
 164 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 165         ppc_4xx_eth_initialize(bis);
 166 #endif
 167 #ifdef CONFIG_INCA_IP_SWITCH
 168         inca_switch_initialize(bis);
 169 #endif
 170 #ifdef CONFIG_PLB2800_ETHER
 171         plb2800_eth_initialize(bis);
 172 #endif
 173 #ifdef SCC_ENET
 174         scc_initialize(bis);
 175 #endif
 176 #if defined(CONFIG_MPC5xxx_FEC)
 177         mpc5xxx_fec_initialize(bis);
 178 #endif
 179 #if defined(CONFIG_MPC8220_FEC)
 180         mpc8220_fec_initialize(bis);
 181 #endif
 182 #if defined(CONFIG_SK98)
 183         skge_initialize(bis);
 184 #endif
 185 #if defined(CONFIG_MPC85XX_TSEC1)
 186         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 187 #elif defined(CONFIG_MPC83XX_TSEC1)
 188         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 189 #endif
 190 #if defined(CONFIG_MPC85XX_TSEC2)
 191         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 192 #elif defined(CONFIG_MPC83XX_TSEC2)
 193         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
 194 #endif
 195 #if defined(CONFIG_MPC85XX_FEC)
 196         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 197 #else
 198 #    if defined(CONFIG_MPC85XX_TSEC3)
 199         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 200 #    elif defined(CONFIG_MPC83XX_TSEC3)
 201         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 202 #    endif
 203 #    if defined(CONFIG_MPC85XX_TSEC4)
 204         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 205 #    elif defined(CONFIG_MPC83XX_TSEC4)
 206         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 207 #    endif
 208 #endif
 209 #if defined(CONFIG_UEC_ETH1)
 210         uec_initialize(0);
 211 #endif
 212 #if defined(CONFIG_UEC_ETH2)
 213         uec_initialize(1);
 214 #endif
 215 #if defined(CONFIG_MPC86XX_TSEC1)
 216        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
 217 #endif
 218
 219 #if defined(CONFIG_MPC86XX_TSEC2)
 220        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
 221 #endif
 222
 223 #if defined(CONFIG_MPC86XX_TSEC3)
 224        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
 225 #endif
 226
 227 #if defined(CONFIG_MPC86XX_TSEC4)
 228        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
 229 #endif
 230
 231 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 232         fec_initialize(bis);
 233 #endif
 234 #if defined(CONFIG_AU1X00)
 235         au1x00_enet_initialize(bis);
 236 #endif
 237 #if defined(CONFIG_IXP4XX_NPE)
 238         npe_initialize(bis);
 239 #endif
 240 #ifdef CONFIG_E1000
 241         e1000_initialize(bis);
 242 #endif
 243 #ifdef CONFIG_EEPRO100
 244         eepro100_initialize(bis);
 245 #endif
 246 #ifdef CONFIG_TULIP
 247         dc21x4x_initialize(bis);
 248 #endif
 249 #ifdef CONFIG_3COM
 250         eth_3com_initialize(bis);
 251 #endif
 252 #ifdef CONFIG_PCNET
 253         pcnet_initialize(bis);
 254 #endif
 255 #ifdef CFG_GT_6426x
 256         gt6426x_eth_initialize(bis);
 257 #endif
 258 #ifdef CONFIG_NATSEMI
 259         natsemi_initialize(bis);
 260 #endif
 261 #ifdef CONFIG_NS8382X
 262         ns8382x_initialize(bis);
 263 #endif
 264 #if defined(CONFIG_TSI108_ETH)
 265         tsi108_eth_initialize(bis);
 266 #endif
 267 #if defined(CONFIG_RTL8139)
 268         rtl8139_initialize(bis);
 269 #endif
 270 #if defined(CONFIG_RTL8169)
 271         rtl8169_initialize(bis);
 272 #endif
 273 #if defined(CONFIG_BF537)
 274         bfin_EMAC_initialize(bis);
 275 #endif
 276 #if defined(CONFIG_ATSTK1000)
 277         atstk1000_eth_initialize(bis);
 278 #endif
 279
 280         if (!eth_devices) {
 281                 puts ("No ethernet found.\n");
 282                 SHOW_BOOT_PROGRESS(-64);
 283         } else {
 284                 struct eth_device *dev = eth_devices;
 285                 char *ethprime = getenv ("ethprime");
 286
 287                 SHOW_BOOT_PROGRESS(65);
 288                 do {
 289                         if (eth_number)
 290                                 puts (", ");
 291
 292                         printf("%s", dev->name);
 293
 294                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 295                                 eth_current = dev;
 296                                 puts (" [PRIME]");
 297                         }
 298
 299                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 300                         tmp = getenv (enetvar);
 301
 302                         for (i=0; i<6; i++) {
 303                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 304                                 if (tmp)
 305                                         tmp = (*end) ? end+1 : end;
 306                         }
 307
 308                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 309                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 310                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 311                                 {
 312                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 313                                                 dev->name);
 314                                         printf ("Address in SROM is         "
 315                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 316                                                dev->enetaddr[0], dev->enetaddr[1],
 317                                                dev->enetaddr[2], dev->enetaddr[3],
 318                                                dev->enetaddr[4], dev->enetaddr[5]);
 319                                         printf ("Address in environment is  "
 320                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 321                                                env_enetaddr[0], env_enetaddr[1],
 322                                                env_enetaddr[2], env_enetaddr[3],
 323                                                env_enetaddr[4], env_enetaddr[5]);
 324                                 }
 325
 326                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 327                         }
 328
 329                         eth_number++;
 330                         dev = dev->next;
 331                 } while(dev != eth_devices);
 332
 333 #ifdef CONFIG_NET_MULTI
 334                 /* update current ethernet name */
 335                 if (eth_current) {
 336                         char *act = getenv("ethact");
 337                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 338                                 setenv("ethact", eth_current->name);
 339                 } else
 340                         setenv("ethact", NULL);
 341 #endif
 342
 343                 putc ('\n');
 344         }
 345
 346         return eth_number;
 347 }
 348
 349 void eth_set_enetaddr(int num, char *addr) {
 350         struct eth_device *dev;
 351         unsigned char enetaddr[6];
 352         char *end;
 353         int i;
 354
 355         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 356
 357         if (!eth_devices)
 358                 return;
 359
 360         for (i=0; i<6; i++) {
 361                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 362                 if (addr)
 363                         addr = (*end) ? end+1 : end;
 364         }
 365
 366         dev = eth_devices;
 367         while(num-- > 0) {
 368                 dev = dev->next;
 369
 370                 if (dev == eth_devices)
 371                         return;
 372         }
 373
 374         debug ( "Setting new HW address on %s\n"
 375                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 376                 dev->name,
 377                 enetaddr[0], enetaddr[1],
 378                 enetaddr[2], enetaddr[3],
 379                 enetaddr[4], enetaddr[5]);
 380
 381         memcpy(dev->enetaddr, enetaddr, 6);
 382 }
 383
 384 int eth_init(bd_t *bis)
 385 {
 386         struct eth_device* old_current;
 387
 388         if (!eth_current)
 389                 return 0;
 390
 391         old_current = eth_current;
 392         do {
 393                 debug ("Trying %s\n", eth_current->name);
 394
 395                 if (eth_current->init(eth_current, bis)) {
 396                         eth_current->state = ETH_STATE_ACTIVE;
 397
 398                         return 1;
 399                 }
 400                 debug  ("FAIL\n");
 401
 402                 eth_try_another(0);
 403         } while (old_current != eth_current);
 404
 405         return 0;
 406 }
 407
 408 void eth_halt(void)
 409 {
 410         if (!eth_current)
 411                 return;
 412
 413         eth_current->halt(eth_current);
 414
 415         eth_current->state = ETH_STATE_PASSIVE;
 416 }
 417
 418 int eth_send(volatile void *packet, int length)
 419 {
 420         if (!eth_current)
 421                 return -1;
 422
 423         return eth_current->send(eth_current, packet, length);
 424 }
 425
 426 int eth_rx(void)
 427 {
 428         if (!eth_current)
 429                 return -1;
 430
 431         return eth_current->recv(eth_current);
 432 }
 433
 434 void eth_try_another(int first_restart)
 435 {
 436         static struct eth_device *first_failed = NULL;
 437
 438         if (!eth_current)
 439                 return;
 440
 441         if (first_restart) {
 442                 first_failed = eth_current;
 443         }
 444
 445         eth_current = eth_current->next;
 446
 447 #ifdef CONFIG_NET_MULTI
 448         /* update current ethernet name */
 449         {
 450                 char *act = getenv("ethact");
 451                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 452                         setenv("ethact", eth_current->name);
 453         }
 454 #endif
 455
 456         if (first_failed == eth_current) {
 457                 NetRestartWrap = 1;
 458         }
 459 }
 460
 461 #ifdef CONFIG_NET_MULTI
 462 void eth_set_current(void)
 463 {
 464         char *act;
 465         struct eth_device* old_current;
 466
 467         if (!eth_current)       /* XXX no current */
 468                 return;
 469
 470         act = getenv("ethact");
 471         if (act != NULL) {
 472                 old_current = eth_current;
 473                 do {
 474                         if (strcmp(eth_current->name, act) == 0)
 475                                 return;
 476                         eth_current = eth_current->next;
 477                 } while (old_current != eth_current);
 478         }
 479
 480         setenv("ethact", eth_current->name);
 481 }
 482 #endif
 483
 484 char *eth_get_name (void)
 485 {
 486         return (eth_current ? eth_current->name : "unknown");
 487 }
 488 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 489
 490 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 491 extern int emac4xx_miiphy_initialize(bd_t *bis);
 492 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 493 extern int ns7520_miiphy_initialize(bd_t *bis);
 494
 495 int eth_initialize(bd_t *bis)
 496 {
 497 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 498         miiphy_init();
 499 #endif
 500
 501 #if defined(CONFIG_AT91RM9200)
 502         at91rm9200_miiphy_initialize(bis);
 503 #endif
 504 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 505         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 506         emac4xx_miiphy_initialize(bis);
 507 #endif
 508 #if defined(CONFIG_MCF52x2)
 509         mcf52x2_miiphy_initialize(bis);
 510 #endif
 511 #if defined(CONFIG_NETARM)
 512         ns7520_miiphy_initialize(bis);
 513 #endif
 514         return 0;
 515 }
 516 #endif