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