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 #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 mpc512x_fec_initialize(bd_t*);
  44 extern int mpc8220_fec_initialize(bd_t*);
  45 extern int mv6436x_eth_initialize(bd_t *);
  46 extern int mv6446x_eth_initialize(bd_t *);
  47 extern int natsemi_initialize(bd_t*);
  48 extern int ns8382x_initialize(bd_t*);
  49 extern int pcnet_initialize(bd_t*);
  50 extern int plb2800_eth_initialize(bd_t*);
  51 extern int ppc_4xx_eth_initialize(bd_t *);
  52 extern int rtl8139_initialize(bd_t*);
  53 extern int rtl8169_initialize(bd_t*);
  54 extern int scc_initialize(bd_t*);
  55 extern int skge_initialize(bd_t*);
  56 extern int tsi108_eth_initialize(bd_t*);
  57 extern int uli526x_initialize(bd_t *);
  58 extern int tsec_initialize(bd_t*, int, char *);
  59 extern int npe_initialize(bd_t *);
  60 extern int uec_initialize(int);
  61 extern int bfin_EMAC_initialize(bd_t *);
  62 extern int atstk1000_eth_initialize(bd_t *);
  63 extern int mcffec_initialize(bd_t*);
  64
  65 static struct eth_device *eth_devices, *eth_current;
  66
  67 struct eth_device *eth_get_dev(void)
  68 {
  69         return eth_current;
  70 }
  71
  72 struct eth_device *eth_get_dev_by_name(char *devname)
  73 {
  74         struct eth_device *dev, *target_dev;
  75
  76         if (!eth_devices)
  77                 return NULL;
  78
  79         dev = eth_devices;
  80         target_dev = NULL;
  81         do {
  82                 if (strcmp(devname, dev->name) == 0) {
  83                         target_dev = dev;
  84                         break;
  85                 }
  86                 dev = dev->next;
  87         } while (dev != eth_devices);
  88
  89         return target_dev;
  90 }
  91
  92 int eth_get_dev_index (void)
  93 {
  94         struct eth_device *dev;
  95         int num = 0;
  96
  97         if (!eth_devices) {
  98                 return (-1);
  99         }
 100
 101         for (dev = eth_devices; dev; dev = dev->next) {
 102                 if (dev == eth_current)
 103                         break;
 104                 ++num;
 105         }
 106
 107         if (dev) {
 108                 return (num);
 109         }
 110
 111         return (0);
 112 }
 113
 114 int eth_register(struct eth_device* dev)
 115 {
 116         struct eth_device *d;
 117
 118         if (!eth_devices) {
 119                 eth_current = eth_devices = dev;
 120 #ifdef CONFIG_NET_MULTI
 121                 /* update current ethernet name */
 122                 {
 123                         char *act = getenv("ethact");
 124                         if (act == NULL || strcmp(act, eth_current->name) != 0)
 125                                 setenv("ethact", eth_current->name);
 126                 }
 127 #endif
 128         } else {
 129                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
 130                 d->next = dev;
 131         }
 132
 133         dev->state = ETH_STATE_INIT;
 134         dev->next  = eth_devices;
 135
 136         return 0;
 137 }
 138
 139 int eth_initialize(bd_t *bis)
 140 {
 141         char enetvar[32], env_enetaddr[6];
 142         int i, eth_number = 0;
 143         char *tmp, *end;
 144
 145         eth_devices = NULL;
 146         eth_current = NULL;
 147
 148         show_boot_progress (64);
 149 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 150         miiphy_init();
 151 #endif
 152
 153 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
 154         mv6436x_eth_initialize(bis);
 155 #endif
 156 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
 157         mv6446x_eth_initialize(bis);
 158 #endif
 159 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
 160         ppc_4xx_eth_initialize(bis);
 161 #endif
 162 #ifdef CONFIG_INCA_IP_SWITCH
 163         inca_switch_initialize(bis);
 164 #endif
 165 #ifdef CONFIG_PLB2800_ETHER
 166         plb2800_eth_initialize(bis);
 167 #endif
 168 #ifdef SCC_ENET
 169         scc_initialize(bis);
 170 #endif
 171 #if defined(CONFIG_MPC5xxx_FEC)
 172         mpc5xxx_fec_initialize(bis);
 173 #endif
 174 #if defined(CONFIG_MPC512x_FEC)
 175         mpc512x_fec_initialize (bis);
 176 #endif
 177 #if defined(CONFIG_MPC8220_FEC)
 178         mpc8220_fec_initialize(bis);
 179 #endif
 180 #if defined(CONFIG_SK98)
 181         skge_initialize(bis);
 182 #endif
 183 #if defined(CONFIG_TSEC1)
 184         tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
 185 #endif
 186 #if defined(CONFIG_TSEC2)
 187         tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
 188 #endif
 189 #if defined(CONFIG_MPC85XX_FEC)
 190         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
 191 #else
 192 #    if defined(CONFIG_TSEC3)
 193         tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
 194 #    endif
 195 #    if defined(CONFIG_TSEC4)
 196         tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
 197 #    endif
 198 #endif
 199 #if defined(CONFIG_UEC_ETH1)
 200         uec_initialize(0);
 201 #endif
 202 #if defined(CONFIG_UEC_ETH2)
 203         uec_initialize(1);
 204 #endif
 205
 206 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 207         fec_initialize(bis);
 208 #endif
 209 #if defined(CONFIG_AU1X00)
 210         au1x00_enet_initialize(bis);
 211 #endif
 212 #if defined(CONFIG_IXP4XX_NPE)
 213         npe_initialize(bis);
 214 #endif
 215 #ifdef CONFIG_E1000
 216         e1000_initialize(bis);
 217 #endif
 218 #ifdef CONFIG_EEPRO100
 219         eepro100_initialize(bis);
 220 #endif
 221 #ifdef CONFIG_TULIP
 222         dc21x4x_initialize(bis);
 223 #endif
 224 #ifdef CONFIG_3COM
 225         eth_3com_initialize(bis);
 226 #endif
 227 #ifdef CONFIG_PCNET
 228         pcnet_initialize(bis);
 229 #endif
 230 #ifdef CFG_GT_6426x
 231         gt6426x_eth_initialize(bis);
 232 #endif
 233 #ifdef CONFIG_NATSEMI
 234         natsemi_initialize(bis);
 235 #endif
 236 #ifdef CONFIG_NS8382X
 237         ns8382x_initialize(bis);
 238 #endif
 239 #if defined(CONFIG_TSI108_ETH)
 240         tsi108_eth_initialize(bis);
 241 #endif
 242 #if defined(CONFIG_ULI526X)
 243         uli526x_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 #ifdef CONFIG_MCAST_TFTP
 365 /* Multicast.
 366  * mcast_addr: multicast ipaddr from which multicast Mac is made
 367  * join: 1=join, 0=leave.
 368  */
 369 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
 370 {
 371  u8 mcast_mac[6];
 372         if (!eth_current || !eth_current->mcast)
 373                 return -1;
 374         mcast_mac[5] = htonl(mcast_ip) & 0xff;
 375         mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
 376         mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
 377         mcast_mac[2] = 0x5e;
 378         mcast_mac[1] = 0x0;
 379         mcast_mac[0] = 0x1;
 380         return eth_current->mcast(eth_current, mcast_mac, join);
 381 }
 382
 383 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
 384  * and this is the ethernet-crc method needed for TSEC -- and perhaps
 385  * some other adapter -- hash tables
 386  */
 387 #define CRCPOLY_LE 0xedb88320
 388 u32 ether_crc (size_t len, unsigned char const *p)
 389 {
 390         int i;
 391         u32 crc;
 392         crc = ~0;
 393         while (len--) {
 394                 crc ^= *p++;
 395                 for (i = 0; i < 8; i++)
 396                         crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
 397         }
 398         /* an reverse the bits, cuz of way they arrive -- last-first */
 399         crc = (crc >> 16) | (crc << 16);
 400         crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
 401         crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
 402         crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
 403         crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
 404         return crc;
 405 }
 406
 407 #endif
 408
 409
 410 int eth_init(bd_t *bis)
 411 {
 412         struct eth_device* old_current;
 413
 414         if (!eth_current)
 415                 return 0;
 416
 417         old_current = eth_current;
 418         do {
 419                 debug ("Trying %s\n", eth_current->name);
 420
 421                 if (eth_current->init(eth_current, bis)) {
 422                         eth_current->state = ETH_STATE_ACTIVE;
 423
 424                         return 1;
 425                 }
 426                 debug  ("FAIL\n");
 427
 428                 eth_try_another(0);
 429         } while (old_current != eth_current);
 430
 431         return 0;
 432 }
 433
 434 void eth_halt(void)
 435 {
 436         if (!eth_current)
 437                 return;
 438
 439         eth_current->halt(eth_current);
 440
 441         eth_current->state = ETH_STATE_PASSIVE;
 442 }
 443
 444 int eth_send(volatile void *packet, int length)
 445 {
 446         if (!eth_current)
 447                 return -1;
 448
 449         return eth_current->send(eth_current, packet, length);
 450 }
 451
 452 int eth_rx(void)
 453 {
 454         if (!eth_current)
 455                 return -1;
 456
 457         return eth_current->recv(eth_current);
 458 }
 459
 460 void eth_try_another(int first_restart)
 461 {
 462         static struct eth_device *first_failed = NULL;
 463
 464         if (!eth_current)
 465                 return;
 466
 467         if (first_restart) {
 468                 first_failed = eth_current;
 469         }
 470
 471         eth_current = eth_current->next;
 472
 473 #ifdef CONFIG_NET_MULTI
 474         /* update current ethernet name */
 475         {
 476                 char *act = getenv("ethact");
 477                 if (act == NULL || strcmp(act, eth_current->name) != 0)
 478                         setenv("ethact", eth_current->name);
 479         }
 480 #endif
 481
 482         if (first_failed == eth_current) {
 483                 NetRestartWrap = 1;
 484         }
 485 }
 486
 487 #ifdef CONFIG_NET_MULTI
 488 void eth_set_current(void)
 489 {
 490         char *act;
 491         struct eth_device* old_current;
 492
 493         if (!eth_current)       /* XXX no current */
 494                 return;
 495
 496         act = getenv("ethact");
 497         if (act != NULL) {
 498                 old_current = eth_current;
 499                 do {
 500                         if (strcmp(eth_current->name, act) == 0)
 501                                 return;
 502                         eth_current = eth_current->next;
 503                 } while (old_current != eth_current);
 504         }
 505
 506         setenv("ethact", eth_current->name);
 507 }
 508 #endif
 509
 510 char *eth_get_name (void)
 511 {
 512         return (eth_current ? eth_current->name : "unknown");
 513 }
 514 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
 515
 516 extern int at91rm9200_miiphy_initialize(bd_t *bis);
 517 extern int emac4xx_miiphy_initialize(bd_t *bis);
 518 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 519 extern int ns7520_miiphy_initialize(bd_t *bis);
 520 extern int dm644x_eth_miiphy_initialize(bd_t *bis);
 521
 522
 523 int eth_initialize(bd_t *bis)
 524 {
 525 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 526         miiphy_init();
 527 #endif
 528
 529 #if defined(CONFIG_AT91RM9200)
 530         at91rm9200_miiphy_initialize(bis);
 531 #endif
 532 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
 533         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
 534         emac4xx_miiphy_initialize(bis);
 535 #endif
 536 #if defined(CONFIG_MCF52x2)
 537         mcf52x2_miiphy_initialize(bis);
 538 #endif
 539 #if defined(CONFIG_NETARM)
 540         ns7520_miiphy_initialize(bis);
 541 #endif
 542 #if defined(CONFIG_DRIVER_TI_EMAC)
 543         dm644x_eth_miiphy_initialize(bis);
 544 #endif
 545         return 0;
 546 }
 547 #endif