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 extern int mcffec_initialize(bd_t*);
  70
  71 static struct eth_device *eth_devices, *eth_current;
  72
  73 struct eth_device *eth_get_dev(void)
  74 {
  75         return eth_current;
  76 }
  77
  78 struct eth_device *eth_get_dev_by_name(char *devname)
  79 {
  80         struct eth_device *dev, *target_dev;
  81
  82         if (!eth_devices)
  83                 return NULL;
  84
  85         dev = eth_devices;
  86         target_dev = NULL;
  87         do {
  88                 if (strcmp(devname, dev->name) == 0) {
  89                         target_dev = dev;
  90                         break;
  91                 }
  92                 dev = dev->next;
  93         } while (dev != eth_devices);
  94
  95         return target_dev;
  96 }
  97
  98 int eth_get_dev_index (void)
  99 {
 100         struct eth_device *dev;
 101         int num = 0;
 102
 103         if (!eth_devices) {
 104                 return (-1);
 105         }
 106
 107         for (dev = eth_devices; dev; dev = dev->next) {
 108                 if (dev == eth_current)
 109                         break;
 110                 ++num;
 111         }
 112
 113         if (dev) {
 114                 return (num);
 115         }
 116
 117         return (0);
 118 }
 119
 120 int eth_register(struct eth_device* dev)
 121 {
 122         struct eth_device *d;
 123
 124         if (!eth_devices) {
 125                 eth_current = eth_devices = dev;
 126 #ifdef CONFIG_NET_MULTI
 127                 /* update current ethernet name */
 128                 {
 129                         char *act = getenv("ethact");
 130                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 131                                 setenv("ethact", eth_current->name);
 132                 }
 133 #endif
 134         } else {
 135                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 136                 d->next = dev;
 137         }
 138
 139         dev->state = ETH_STATE_INIT;
 140         dev->next  = eth_devices;
 141
 142         return 0;
 143 }
 144
 145 int eth_initialize(bd_t *bis)
 146 {
 147         char enetvar[32], env_enetaddr[6];
 148         int i, eth_number = 0;
 149         char *tmp, *end;
 150
 151         eth_devices = NULL;
 152         eth_current = NULL;
 153
 154         SHOW_BOOT_PROGRESS(64);
 155 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 156         miiphy_init();
 157 #endif
 158
 159 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 160         mv6436x_eth_initialize(bis);
 161 #endif
 162 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 163         mv6446x_eth_initialize(bis);
 164 #endif
 165 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 166         ppc_4xx_eth_initialize(bis);
 167 #endif
 168 #ifdef CONFIG_INCA_IP_SWITCH
 169         inca_switch_initialize(bis);
 170 #endif
 171 #ifdef CONFIG_PLB2800_ETHER
 172         plb2800_eth_initialize(bis);
 173 #endif
 174 #ifdef SCC_ENET
 175         scc_initialize(bis);
 176 #endif
 177 #if defined(CONFIG_MPC5xxx_FEC)
 178         mpc5xxx_fec_initialize(bis);
 179 #endif
 180 #if defined(CONFIG_MPC8220_FEC)
 181         mpc8220_fec_initialize(bis);
 182 #endif
 183 #if defined(CONFIG_SK98)
 184         skge_initialize(bis);
 185 #endif
 186 #if defined(CONFIG_TSEC1)
 187         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 188 #endif
 189 #if defined(CONFIG_TSEC2)
 190         tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
 191 #endif
 192 #if defined(CONFIG_MPC85XX_FEC)
 193         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 194 #else
 195 #    if defined(CONFIG_TSEC3)
 196         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 197 #    endif
 198 #    if defined(CONFIG_TSEC4)
 199         tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
 200 #    endif
 201 #endif
 202 #if defined(CONFIG_UEC_ETH1)
 203         uec_initialize(0);
 204 #endif
 205 #if defined(CONFIG_UEC_ETH2)
 206         uec_initialize(1);
 207 #endif
 208
 209 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 210         fec_initialize(bis);
 211 #endif
 212 #if defined(CONFIG_AU1X00)
 213         au1x00_enet_initialize(bis);
 214 #endif
 215 #if defined(CONFIG_IXP4XX_NPE)
 216         npe_initialize(bis);
 217 #endif
 218 #ifdef CONFIG_E1000
 219         e1000_initialize(bis);
 220 #endif
 221 #ifdef CONFIG_EEPRO100
 222         eepro100_initialize(bis);
 223 #endif
 224 #ifdef CONFIG_TULIP
 225         dc21x4x_initialize(bis);
 226 #endif
 227 #ifdef CONFIG_3COM
 228         eth_3com_initialize(bis);
 229 #endif
 230 #ifdef CONFIG_PCNET
 231         pcnet_initialize(bis);
 232 #endif
 233 #ifdef CFG_GT_6426x
 234         gt6426x_eth_initialize(bis);
 235 #endif
 236 #ifdef CONFIG_NATSEMI
 237         natsemi_initialize(bis);
 238 #endif
 239 #ifdef CONFIG_NS8382X
 240         ns8382x_initialize(bis);
 241 #endif
 242 #if defined(CONFIG_TSI108_ETH)
 243         tsi108_eth_initialize(bis);
 244 #endif
 245 #if defined(CONFIG_RTL8139)
 246         rtl8139_initialize(bis);
 247 #endif
 248 #if defined(CONFIG_RTL8169)
 249         rtl8169_initialize(bis);
 250 #endif
 251 #if defined(CONFIG_BF537)
 252         bfin_EMAC_initialize(bis);
 253 #endif
 254 #if defined(CONFIG_ATSTK1000)
 255         atstk1000_eth_initialize(bis);
 256 #endif
 257 #if defined(CONFIG_MCFFEC)
 258         mcffec_initialize(bis);
 259 #endif
 260
 261         if (!eth_devices) {
 262                 puts ("No ethernet found.\n");
 263                 SHOW_BOOT_PROGRESS(-64);
 264         } else {
 265                 struct eth_device *dev = eth_devices;
 266                 char *ethprime = getenv ("ethprime");
 267
 268                 SHOW_BOOT_PROGRESS(65);
 269                 do {
 270                         if (eth_number)
 271                                 puts (", ");
 272
 273                         printf("%s", dev->name);
 274
 275                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 276                                 eth_current = dev;
 277                                 puts (" [PRIME]");
 278                         }
 279
 280                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 281                         tmp = getenv (enetvar);
 282
 283                         for (i=0; i<6; i++) {
 284                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 285                                 if (tmp)
 286                                         tmp = (*end) ? end+1 : end;
 287                         }
 288
 289                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 290                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 291                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 292                                 {
 293                                         printf ("\nWarning: %s MAC addresses don't match:\n",
 294                                                 dev->name);
 295                                         printf ("Address in SROM is         "
 296                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 297                                                dev->enetaddr[0], dev->enetaddr[1],
 298                                                dev->enetaddr[2], dev->enetaddr[3],
 299                                                dev->enetaddr[4], dev->enetaddr[5]);
 300                                         printf ("Address in environment is  "
 301                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 302                                                env_enetaddr[0], env_enetaddr[1],
 303                                                env_enetaddr[2], env_enetaddr[3],
 304                                                env_enetaddr[4], env_enetaddr[5]);
 305                                 }
 306
 307                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 308                         }
 309
 310                         eth_number++;
 311                         dev = dev->next;
 312                 } while(dev != eth_devices);
 313
 314 #ifdef CONFIG_NET_MULTI
 315                 /* update current ethernet name */
 316                 if (eth_current) {
 317                         char *act = getenv("ethact");
 318                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 319                                 setenv("ethact", eth_current->name);
 320                 } else
 321                         setenv("ethact", NULL);
 322 #endif
 323
 324                 putc ('\n');
 325         }
 326
 327         return eth_number;
 328 }
 329
 330 void eth_set_enetaddr(int num, char *addr) {
 331         struct eth_device *dev;
 332         unsigned char enetaddr[6];
 333         char *end;
 334         int i;
 335
 336         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 337
 338         if (!eth_devices)
 339                 return;
 340
 341         for (i=0; i<6; i++) {
 342                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 343                 if (addr)
 344                         addr = (*end) ? end+1 : end;
 345         }
 346
 347         dev = eth_devices;
 348         while(num-- > 0) {
 349                 dev = dev->next;
 350
 351                 if (dev == eth_devices)
 352                         return;
 353         }
 354
 355         debug ( "Setting new HW address on %s\n"
 356                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 357                 dev->name,
 358                 enetaddr[0], enetaddr[1],
 359                 enetaddr[2], enetaddr[3],
 360                 enetaddr[4], enetaddr[5]);
 361
 362         memcpy(dev->enetaddr, enetaddr, 6);
 363 }
 364
 365 int eth_init(bd_t *bis)
 366 {
 367         struct eth_device* old_current;
 368
 369         if (!eth_current)
 370                 return 0;
 371
 372         old_current = eth_current;
 373         do {
 374                 debug ("Trying %s\n", eth_current->name);
 375
 376                 if (eth_current->init(eth_current, bis)) {
 377                         eth_current->state = ETH_STATE_ACTIVE;
 378
 379                         return 1;
 380                 }
 381                 debug  ("FAIL\n");
 382
 383                 eth_try_another(0);
 384         } while (old_current != eth_current);
 385
 386         return 0;
 387 }
 388
 389 void eth_halt(void)
 390 {
 391         if (!eth_current)
 392                 return;
 393
 394         eth_current->halt(eth_current);
 395
 396         eth_current->state = ETH_STATE_PASSIVE;
 397 }
 398
 399 int eth_send(volatile void *packet, int length)
 400 {
 401         if (!eth_current)
 402                 return -1;
 403
 404         return eth_current->send(eth_current, packet, length);
 405 }
 406
 407 int eth_rx(void)
 408 {
 409         if (!eth_current)
 410                 return -1;
 411
 412         return eth_current->recv(eth_current);
 413 }
 414
 415 void eth_try_another(int first_restart)
 416 {
 417         static struct eth_device *first_failed = NULL;
 418
 419         if (!eth_current)
 420                 return;
 421
 422         if (first_restart) {
 423                 first_failed = eth_current;
 424         }
 425
 426         eth_current = eth_current->next;
 427
 428 #ifdef CONFIG_NET_MULTI
 429         /* update current ethernet name */
 430         {
 431                 char *act = getenv("ethact");
 432                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 433                         setenv("ethact", eth_current->name);
 434         }
 435 #endif
 436
 437         if (first_failed == eth_current) {
 438                 NetRestartWrap = 1;
 439         }
 440 }
 441
 442 #ifdef CONFIG_NET_MULTI
 443 void eth_set_current(void)
 444 {
 445         char *act;
 446         struct eth_device* old_current;
 447
 448         if (!eth_current)       /* XXX no current */
 449                 return;
 450
 451         act = getenv("ethact");
 452         if (act != NULL) {
 453                 old_current = eth_current;
 454                 do {
 455                         if (strcmp(eth_current->name, act) == 0)
 456                                 return;
 457                         eth_current = eth_current->next;
 458                 } while (old_current != eth_current);
 459         }
 460
 461         setenv("ethact", eth_current->name);
 462 }
 463 #endif
 464
 465 char *eth_get_name (void)
 466 {
 467         return (eth_current ? eth_current->name : "unknown");
 468 }
 469 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 470
 471 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 472 extern int emac4xx_miiphy_initialize(bd_t *bis);
 473 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 474 extern int ns7520_miiphy_initialize(bd_t *bis);
 475
 476 int eth_initialize(bd_t *bis)
 477 {
 478 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
 479         miiphy_init();
 480 #endif
 481
 482 #if defined(CONFIG_AT91RM9200)
 483         at91rm9200_miiphy_initialize(bis);
 484 #endif
 485 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 486         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 487         emac4xx_miiphy_initialize(bis);
 488 #endif
 489 #if defined(CONFIG_MCF52x2)
 490         mcf52x2_miiphy_initialize(bis);
 491 #endif
 492 #if defined(CONFIG_NETARM)
 493         ns7520_miiphy_initialize(bis);
 494 #endif
 495         return 0;
 496 }
 497 #endif