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