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
  28 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
  29
  30 #ifdef CFG_GT_6426x
  31 extern int gt6426x_eth_initialize(bd_t *bis);
  32 #endif
  33
  34 extern int au1x00_enet_initialize(bd_t*);
  35 extern int dc21x4x_initialize(bd_t*);
  36 extern int e1000_initialize(bd_t*);
  37 extern int eepro100_initialize(bd_t*);
  38 extern int eth_3com_initialize(bd_t*);
  39 extern int fec_initialize(bd_t*);
  40 extern int inca_switch_initialize(bd_t*);
  41 extern int mpc5xxx_fec_initialize(bd_t*);
  42 extern int mpc8220_fec_initialize(bd_t*);
  43 extern int mv6436x_eth_initialize(bd_t *);
  44 extern int mv6446x_eth_initialize(bd_t *);
  45 extern int natsemi_initialize(bd_t*);
  46 extern int ns8382x_initialize(bd_t*);
  47 extern int pcnet_initialize(bd_t*);
  48 extern int plb2800_eth_initialize(bd_t*);
  49 extern int ppc_4xx_eth_initialize(bd_t *);
  50 extern int rtl8139_initialize(bd_t*);
  51 extern int rtl8169_initialize(bd_t*);
  52 extern int scc_initialize(bd_t*);
  53 extern int skge_initialize(bd_t*);
  54 extern int tsec_initialize(bd_t*, int, char *);
  55
  56 static struct eth_device *eth_devices, *eth_current;
  57
  58 struct eth_device *eth_get_dev(void)
  59 {
  60         return eth_current;
  61 }
  62
  63 struct eth_device *eth_get_dev_by_name(char *devname)
  64 {
  65         struct eth_device *dev, *target_dev;
  66
  67         if (!eth_devices)
  68                 return NULL;
  69
  70         dev = eth_devices;
  71         target_dev = NULL;
  72         do {
  73                 if (strcmp(devname, dev->name) == 0) {
  74                         target_dev = dev;
  75                         break;
  76                 }
  77                 dev = dev->next;
  78         } while (dev != eth_devices);
  79
  80         return target_dev;
  81 }
  82
  83 int eth_get_dev_index (void)
  84 {
  85         struct eth_device *dev;
  86         int num = 0;
  87
  88         if (!eth_devices) {
  89                 return (-1);
  90         }
  91
  92         for (dev = eth_devices; dev; dev = dev->next) {
  93                 if (dev == eth_current)
  94                         break;
  95                 ++num;
  96         }
  97
  98         if (dev) {
  99                 return (num);
 100         }
 101
 102         return (0);
 103 }
 104
 105 int eth_register(struct eth_device* dev)
 106 {
 107         struct eth_device *d;
 108
 109         if (!eth_devices) {
 110                 eth_current = eth_devices = dev;
 111 #ifdef CONFIG_NET_MULTI
 112                 /* update current ethernet name */
 113                 {
 114                         char *act = getenv("ethact");
 115                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 116                                 setenv("ethact", eth_current->name);
 117                 }
 118 #endif
 119         } else {
 120                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 121                 d->next = dev;
 122         }
 123
 124         dev->state = ETH_STATE_INIT;
 125         dev->next  = eth_devices;
 126
 127         return 0;
 128 }
 129
 130 int eth_initialize(bd_t *bis)
 131 {
 132         char enetvar[32], env_enetaddr[6];
 133         int i, eth_number = 0;
 134         char *tmp, *end;
 135
 136         eth_devices = NULL;
 137         eth_current = NULL;
 138
 139 #ifdef CONFIG_DB64360
 140         mv6436x_eth_initialize(bis);
 141 #endif
 142 #ifdef CONFIG_CPCI750
 143         mv6436x_eth_initialize(bis);
 144 #endif
 145 #ifdef CONFIG_DB64460
 146         mv6446x_eth_initialize(bis);
 147 #endif
 148 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 149         ppc_4xx_eth_initialize(bis);
 150 #endif
 151 #ifdef CONFIG_INCA_IP_SWITCH
 152         inca_switch_initialize(bis);
 153 #endif
 154 #ifdef CONFIG_PLB2800_ETHER
 155         plb2800_eth_initialize(bis);
 156 #endif
 157 #ifdef SCC_ENET
 158         scc_initialize(bis);
 159 #endif
 160 #if defined(CONFIG_MPC5xxx_FEC)
 161         mpc5xxx_fec_initialize(bis);
 162 #endif
 163 #if defined(CONFIG_MPC8220_FEC)
 164         mpc8220_fec_initialize(bis);
 165 #endif
 166 #if defined(CONFIG_SK98)
 167         skge_initialize(bis);
 168 #endif
 169 #if defined(CONFIG_MPC85XX_TSEC1)
 170         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
 171 #elif defined(CONFIG_MPC83XX_TSEC1)
 172         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
 173 #endif
 174 #if defined(CONFIG_MPC85XX_TSEC2)
 175         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
 176 #elif defined(CONFIG_MPC83XX_TSEC2)
 177         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
 178 #endif
 179 #if defined(CONFIG_MPC85XX_FEC)
 180         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 181 #else
 182 #    if defined(CONFIG_MPC85XX_TSEC3)
 183         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
 184 #    elif defined(CONFIG_MPC83XX_TSEC3)
 185         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
 186 #    endif
 187 #    if defined(CONFIG_MPC85XX_TSEC4)
 188         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
 189 #    elif defined(CONFIG_MPC83XX_TSEC4)
 190         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
 191 #    endif
 192 #endif
 193 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 194         fec_initialize(bis);
 195 #endif
 196 #if defined(CONFIG_AU1X00)
 197         au1x00_enet_initialize(bis);
 198 #endif
 199 #ifdef CONFIG_E1000
 200         e1000_initialize(bis);
 201 #endif
 202 #ifdef CONFIG_EEPRO100
 203         eepro100_initialize(bis);
 204 #endif
 205 #ifdef CONFIG_TULIP
 206         dc21x4x_initialize(bis);
 207 #endif
 208 #ifdef CONFIG_3COM
 209         eth_3com_initialize(bis);
 210 #endif
 211 #ifdef CONFIG_PCNET
 212         pcnet_initialize(bis);
 213 #endif
 214 #ifdef CFG_GT_6426x
 215         gt6426x_eth_initialize(bis);
 216 #endif
 217 #ifdef CONFIG_NATSEMI
 218         natsemi_initialize(bis);
 219 #endif
 220 #ifdef CONFIG_NS8382X
 221         ns8382x_initialize(bis);
 222 #endif
 223 #if defined(CONFIG_RTL8139)
 224         rtl8139_initialize(bis);
 225 #endif
 226 #if defined(CONFIG_RTL8169)
 227         rtl8169_initialize(bis);
 228 #endif
 229
 230         if (!eth_devices) {
 231                 puts ("No ethernet found.\n");
 232         } else {
 233                 struct eth_device *dev = eth_devices;
 234                 char *ethprime = getenv ("ethprime");
 235
 236                 do {
 237                         if (eth_number)
 238                                 puts (", ");
 239
 240                         printf("%s", dev->name);
 241
 242                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 243                                 eth_current = dev;
 244                                 puts (" [PRIME]");
 245                         }
 246
 247                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 248                         tmp = getenv (enetvar);
 249
 250                         for (i=0; i<6; i++) {
 251                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 252                                 if (tmp)
 253                                         tmp = (*end) ? end+1 : end;
 254                         }
 255
 256                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 257                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 258                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 259                                 {
 260                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 261                                                 dev->name);
 262                                         printf ("Address in SROM is         "
 263                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 264                                                dev->enetaddr[0], dev->enetaddr[1],
 265                                                dev->enetaddr[2], dev->enetaddr[3],
 266                                                dev->enetaddr[4], dev->enetaddr[5]);
 267                                         printf ("Address in environment is  "
 268                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 269                                                env_enetaddr[0], env_enetaddr[1],
 270                                                env_enetaddr[2], env_enetaddr[3],
 271                                                env_enetaddr[4], env_enetaddr[5]);
 272                                 }
 273
 274                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 275                         }
 276
 277                         eth_number++;
 278                         dev = dev->next;
 279                 } while(dev != eth_devices);
 280
 281 #ifdef CONFIG_NET_MULTI
 282                 /* update current ethernet name */
 283                 if (eth_current) {
 284                         char *act = getenv("ethact");
 285                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 286                                 setenv("ethact", eth_current->name);
 287                 } else
 288                         setenv("ethact", NULL);
 289 #endif
 290
 291                 putc ('\n');
 292         }
 293
 294         return eth_number;
 295 }
 296
 297 void eth_set_enetaddr(int num, char *addr) {
 298         struct eth_device *dev;
 299         unsigned char enetaddr[6];
 300         char *end;
 301         int i;
 302
 303         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 304
 305         if (!eth_devices)
 306                 return;
 307
 308         for (i=0; i<6; i++) {
 309                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 310                 if (addr)
 311                         addr = (*end) ? end+1 : end;
 312         }
 313
 314         dev = eth_devices;
 315         while(num-- > 0) {
 316                 dev = dev->next;
 317
 318                 if (dev == eth_devices)
 319                         return;
 320         }
 321
 322         debug ( "Setting new HW address on %s\n"
 323                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 324                 dev->name,
 325                 enetaddr[0], enetaddr[1],
 326                 enetaddr[2], enetaddr[3],
 327                 enetaddr[4], enetaddr[5]);
 328
 329         memcpy(dev->enetaddr, enetaddr, 6);
 330 }
 331
 332 int eth_init(bd_t *bis)
 333 {
 334         struct eth_device* old_current;
 335
 336         if (!eth_current)
 337                 return 0;
 338
 339         old_current = eth_current;
 340         do {
 341                 debug ("Trying %s\n", eth_current->name);
 342
 343                 if (eth_current->init(eth_current, bis)) {
 344                         eth_current->state = ETH_STATE_ACTIVE;
 345
 346                         return 1;
 347                 }
 348                 debug  ("FAIL\n");
 349
 350                 eth_try_another(0);
 351         } while (old_current != eth_current);
 352
 353         return 0;
 354 }
 355
 356 void eth_halt(void)
 357 {
 358         if (!eth_current)
 359                 return;
 360
 361         eth_current->halt(eth_current);
 362
 363         eth_current->state = ETH_STATE_PASSIVE;
 364 }
 365
 366 int eth_send(volatile void *packet, int length)
 367 {
 368         if (!eth_current)
 369                 return -1;
 370
 371         return eth_current->send(eth_current, packet, length);
 372 }
 373
 374 int eth_rx(void)
 375 {
 376         if (!eth_current)
 377                 return -1;
 378
 379         return eth_current->recv(eth_current);
 380 }
 381
 382 void eth_try_another(int first_restart)
 383 {
 384         static struct eth_device *first_failed = NULL;
 385
 386         if (!eth_current)
 387                 return;
 388
 389         if (first_restart) {
 390                 first_failed = eth_current;
 391         }
 392
 393         eth_current = eth_current->next;
 394
 395 #ifdef CONFIG_NET_MULTI
 396         /* update current ethernet name */
 397         {
 398                 char *act = getenv("ethact");
 399                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 400                         setenv("ethact", eth_current->name);
 401         }
 402 #endif
 403
 404         if (first_failed == eth_current) {
 405                 NetRestartWrap = 1;
 406         }
 407 }
 408
 409 #ifdef CONFIG_NET_MULTI
 410 void eth_set_current(void)
 411 {
 412         char *act;
 413         struct eth_device* old_current;
 414
 415         if (!eth_current)       /* XXX no current */
 416                 return;
 417
 418         act = getenv("ethact");
 419         if (act != NULL) {
 420                 old_current = eth_current;
 421                 do {
 422                         if (strcmp(eth_current->name, act) == 0)
 423                                 return;
 424                         eth_current = eth_current->next;
 425                 } while (old_current != eth_current);
 426         }
 427
 428         setenv("ethact", eth_current->name);
 429 }
 430 #endif
 431
 432 char *eth_get_name (void)
 433 {
 434         return (eth_current ? eth_current->name : "unknown");
 435 }
 436 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 437
 438 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 439 extern int emac4xx_miiphy_initialize(bd_t *bis);
 440 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 441 extern int ns7520_miiphy_initialize(bd_t *bis);
 442
 443 int eth_initialize(bd_t *bis)
 444 {
 445 #if defined(CONFIG_AT91RM9200)
 446         at91rm9200_miiphy_initialize(bis);
 447 #endif
 448 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 449         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 450         emac4xx_miiphy_initialize(bis);
 451 #endif
 452 #if defined(CONFIG_MCF52x2)
 453         mcf52x2_miiphy_initialize(bis);
 454 #endif
 455 #if defined(CONFIG_NETARM)
 456         ns7520_miiphy_initialize(bis);
 457 #endif
 458         return 0;
 459 }
 460 #endif