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 defined(CONFIG_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 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 154         miiphy_init();
 155 #endif
 156
 157 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 158         mv6436x_eth_initialize(bis);
 159 #endif
 160 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 161         mv6446x_eth_initialize(bis);
 162 #endif
 163 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 164         ppc_4xx_eth_initialize(bis);
 165 #endif
 166 #ifdef CONFIG_INCA_IP_SWITCH
 167         inca_switch_initialize(bis);
 168 #endif
 169 #ifdef CONFIG_PLB2800_ETHER
 170         plb2800_eth_initialize(bis);
 171 #endif
 172 #ifdef SCC_ENET
 173         scc_initialize(bis);
 174 #endif
 175 #if defined(CONFIG_MPC5xxx_FEC)
 176         mpc5xxx_fec_initialize(bis);
 177 #endif
 178 #if defined(CONFIG_MPC8220_FEC)
 179         mpc8220_fec_initialize(bis);
 180 #endif
 181 #if defined(CONFIG_SK98)
 182         skge_initialize(bis);
 183 #endif
 184 #if defined(CONFIG_TSEC1)
 185         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 186 #endif
 187 #if defined(CONFIG_TSEC2)
 188         tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
 189 #endif
 190 #if defined(CONFIG_MPC85XX_FEC)
 191         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 192 #else
 193 #    if defined(CONFIG_TSEC3)
 194         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 195 #    endif
 196 #    if defined(CONFIG_TSEC4)
 197         tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
 198 #    endif
 199 #endif
 200 #if defined(CONFIG_UEC_ETH1)
 201         uec_initialize(0);
 202 #endif
 203 #if defined(CONFIG_UEC_ETH2)
 204         uec_initialize(1);
 205 #endif
 206
 207 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 208         fec_initialize(bis);
 209 #endif
 210 #if defined(CONFIG_AU1X00)
 211         au1x00_enet_initialize(bis);
 212 #endif
 213 #if defined(CONFIG_IXP4XX_NPE)
 214         npe_initialize(bis);
 215 #endif
 216 #ifdef CONFIG_E1000
 217         e1000_initialize(bis);
 218 #endif
 219 #ifdef CONFIG_EEPRO100
 220         eepro100_initialize(bis);
 221 #endif
 222 #ifdef CONFIG_TULIP
 223         dc21x4x_initialize(bis);
 224 #endif
 225 #ifdef CONFIG_3COM
 226         eth_3com_initialize(bis);
 227 #endif
 228 #ifdef CONFIG_PCNET
 229         pcnet_initialize(bis);
 230 #endif
 231 #ifdef CFG_GT_6426x
 232         gt6426x_eth_initialize(bis);
 233 #endif
 234 #ifdef CONFIG_NATSEMI
 235         natsemi_initialize(bis);
 236 #endif
 237 #ifdef CONFIG_NS8382X
 238         ns8382x_initialize(bis);
 239 #endif
 240 #if defined(CONFIG_TSI108_ETH)
 241         tsi108_eth_initialize(bis);
 242 #endif
 243 #if defined(CONFIG_RTL8139)
 244         rtl8139_initialize(bis);
 245 #endif
 246 #if defined(CONFIG_RTL8169)
 247         rtl8169_initialize(bis);
 248 #endif
 249 #if defined(CONFIG_BF537)
 250         bfin_EMAC_initialize(bis);
 251 #endif
 252 #if defined(CONFIG_ATSTK1000)
 253         atstk1000_eth_initialize(bis);
 254 #endif
 255
 256         if (!eth_devices) {
 257                 puts ("No ethernet found.\n");
 258                 SHOW_BOOT_PROGRESS(-64);
 259         } else {
 260                 struct eth_device *dev = eth_devices;
 261                 char *ethprime = getenv ("ethprime");
 262
 263                 SHOW_BOOT_PROGRESS(65);
 264                 do {
 265                         if (eth_number)
 266                                 puts (", ");
 267
 268                         printf("%s", dev->name);
 269
 270                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 271                                 eth_current = dev;
 272                                 puts (" [PRIME]");
 273                         }
 274
 275                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 276                         tmp = getenv (enetvar);
 277
 278                         for (i=0; i<6; i++) {
 279                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 280                                 if (tmp)
 281                                         tmp = (*end) ? end+1 : end;
 282                         }
 283
 284                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 285                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 286                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 287                                 {
 288                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 289                                                 dev->name);
 290                                         printf ("Address in SROM is         "
 291                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 292                                                dev->enetaddr[0], dev->enetaddr[1],
 293                                                dev->enetaddr[2], dev->enetaddr[3],
 294                                                dev->enetaddr[4], dev->enetaddr[5]);
 295                                         printf ("Address in environment is  "
 296                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 297                                                env_enetaddr[0], env_enetaddr[1],
 298                                                env_enetaddr[2], env_enetaddr[3],
 299                                                env_enetaddr[4], env_enetaddr[5]);
 300                                 }
 301
 302                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 303                         }
 304
 305                         eth_number++;
 306                         dev = dev->next;
 307                 } while(dev != eth_devices);
 308
 309 #ifdef CONFIG_NET_MULTI
 310                 /* update current ethernet name */
 311                 if (eth_current) {
 312                         char *act = getenv("ethact");
 313                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 314                                 setenv("ethact", eth_current->name);
 315                 } else
 316                         setenv("ethact", NULL);
 317 #endif
 318
 319                 putc ('\n');
 320         }
 321
 322         return eth_number;
 323 }
 324
 325 void eth_set_enetaddr(int num, char *addr) {
 326         struct eth_device *dev;
 327         unsigned char enetaddr[6];
 328         char *end;
 329         int i;
 330
 331         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 332
 333         if (!eth_devices)
 334                 return;
 335
 336         for (i=0; i<6; i++) {
 337                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 338                 if (addr)
 339                         addr = (*end) ? end+1 : end;
 340         }
 341
 342         dev = eth_devices;
 343         while(num-- > 0) {
 344                 dev = dev->next;
 345
 346                 if (dev == eth_devices)
 347                         return;
 348         }
 349
 350         debug ( "Setting new HW address on %s\n"
 351                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 352                 dev->name,
 353                 enetaddr[0], enetaddr[1],
 354                 enetaddr[2], enetaddr[3],
 355                 enetaddr[4], enetaddr[5]);
 356
 357         memcpy(dev->enetaddr, enetaddr, 6);
 358 }
 359
 360 int eth_init(bd_t *bis)
 361 {
 362         struct eth_device* old_current;
 363
 364         if (!eth_current)
 365                 return 0;
 366
 367         old_current = eth_current;
 368         do {
 369                 debug ("Trying %s\n", eth_current->name);
 370
 371                 if (eth_current->init(eth_current, bis)) {
 372                         eth_current->state = ETH_STATE_ACTIVE;
 373
 374                         return 1;
 375                 }
 376                 debug  ("FAIL\n");
 377
 378                 eth_try_another(0);
 379         } while (old_current != eth_current);
 380
 381         return 0;
 382 }
 383
 384 void eth_halt(void)
 385 {
 386         if (!eth_current)
 387                 return;
 388
 389         eth_current->halt(eth_current);
 390
 391         eth_current->state = ETH_STATE_PASSIVE;
 392 }
 393
 394 int eth_send(volatile void *packet, int length)
 395 {
 396         if (!eth_current)
 397                 return -1;
 398
 399         return eth_current->send(eth_current, packet, length);
 400 }
 401
 402 int eth_rx(void)
 403 {
 404         if (!eth_current)
 405                 return -1;
 406
 407         return eth_current->recv(eth_current);
 408 }
 409
 410 void eth_try_another(int first_restart)
 411 {
 412         static struct eth_device *first_failed = NULL;
 413
 414         if (!eth_current)
 415                 return;
 416
 417         if (first_restart) {
 418                 first_failed = eth_current;
 419         }
 420
 421         eth_current = eth_current->next;
 422
 423 #ifdef CONFIG_NET_MULTI
 424         /* update current ethernet name */
 425         {
 426                 char *act = getenv("ethact");
 427                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 428                         setenv("ethact", eth_current->name);
 429         }
 430 #endif
 431
 432         if (first_failed == eth_current) {
 433                 NetRestartWrap = 1;
 434         }
 435 }
 436
 437 #ifdef CONFIG_NET_MULTI
 438 void eth_set_current(void)
 439 {
 440         char *act;
 441         struct eth_device* old_current;
 442
 443         if (!eth_current)       /* XXX no current */
 444                 return;
 445
 446         act = getenv("ethact");
 447         if (act != NULL) {
 448                 old_current = eth_current;
 449                 do {
 450                         if (strcmp(eth_current->name, act) == 0)
 451                                 return;
 452                         eth_current = eth_current->next;
 453                 } while (old_current != eth_current);
 454         }
 455
 456         setenv("ethact", eth_current->name);
 457 }
 458 #endif
 459
 460 char *eth_get_name (void)
 461 {
 462         return (eth_current ? eth_current->name : "unknown");
 463 }
 464 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 465
 466 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 467 extern int emac4xx_miiphy_initialize(bd_t *bis);
 468 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 469 extern int ns7520_miiphy_initialize(bd_t *bis);
 470
 471 int eth_initialize(bd_t *bis)
 472 {
 473 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 474         miiphy_init();
 475 #endif
 476
 477 #if defined(CONFIG_AT91RM9200)
 478         at91rm9200_miiphy_initialize(bis);
 479 #endif
 480 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 481         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 482         emac4xx_miiphy_initialize(bis);
 483 #endif
 484 #if defined(CONFIG_MCF52x2)
 485         mcf52x2_miiphy_initialize(bis);
 486 #endif
 487 #if defined(CONFIG_NETARM)
 488         ns7520_miiphy_initialize(bis);
 489 #endif
 490         return 0;
 491 }
 492 #endif