git.sur5r.net Git - u-boot/blob - 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 e1000_initialize(bd_t*);
  35 extern int eepro100_initialize(bd_t*);
  36 extern int natsemi_initialize(bd_t*);
  37 extern int ns8382x_initialize(bd_t*);
  38 extern int dc21x4x_initialize(bd_t*);
  39 extern int eth_3com_initialize(bd_t*);
  40 extern int pcnet_initialize(bd_t*);
  41 extern int fec_initialize(bd_t*);
  42 extern int scc_initialize(bd_t*);
  43 extern int inca_switch_initialize(bd_t*);
  44 extern int ppc_4xx_eth_initialize(bd_t *);
  45 extern int plb2800_eth_initialize(bd_t*);
  46 extern int mpc5xxx_fec_initialize(bd_t*);
  47 extern int skge_initialize(bd_t*);
  48 extern int tsec_initialize(bd_t*);
  49 extern int au1x00_enet_initialize(bd_t*);
  50 extern int rtl8139_initialize(bd_t*);
  51
  52 static struct eth_device *eth_devices, *eth_current;
  53
  54 struct eth_device *eth_get_dev(void)
  55 {
  56         return eth_current;
  57 }
  58
  59 int eth_get_dev_index (void)
  60 {
  61         struct eth_device *dev;
  62         int num = 0;
  63
  64         if (!eth_devices) {
  65                 return (-1);
  66         }
  67
  68         for (dev = eth_devices; dev; dev = dev->next) {
  69                 if (dev == eth_current)
  70                         break;
  71                 ++num;
  72         }
  73
  74         if (dev) {
  75                 return (num);
  76         }
  77
  78         return (0);
  79 }
  80
  81 int eth_register(struct eth_device* dev)
  82 {
  83         struct eth_device *d;
  84
  85         if (!eth_devices) {
  86                 eth_current = eth_devices = dev;
  87         } else {
  88                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
  89                 d->next = dev;
  90         }
  91
  92         dev->state = ETH_STATE_INIT;
  93         dev->next  = eth_devices;
  94
  95         return 0;
  96 }
  97
  98 int eth_initialize(bd_t *bis)
  99 {
 100         unsigned char enetvar[32], env_enetaddr[6];
 101         int i, eth_number = 0;
 102         char *tmp, *end;
 103
 104         eth_devices = NULL;
 105         eth_current = NULL;
 106
 107 #if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
 108         ppc_4xx_eth_initialize(bis);
 109 #endif
 110 #ifdef CONFIG_INCA_IP_SWITCH
 111         inca_switch_initialize(bis);
 112 #endif
 113 #ifdef CONFIG_PLB2800_ETHER
 114         plb2800_eth_initialize(bis);
 115 #endif
 116 #ifdef CONFIG_E1000
 117         e1000_initialize(bis);
 118 #endif
 119 #ifdef CONFIG_EEPRO100
 120         eepro100_initialize(bis);
 121 #endif
 122 #ifdef CONFIG_TULIP
 123         dc21x4x_initialize(bis);
 124 #endif
 125 #ifdef CONFIG_3COM
 126         eth_3com_initialize(bis);
 127 #endif
 128 #ifdef CONFIG_PCNET
 129         pcnet_initialize(bis);
 130 #endif
 131 #ifdef CFG_GT_6426x
 132         gt6426x_eth_initialize(bis);
 133 #endif
 134 #ifdef CONFIG_NATSEMI
 135         natsemi_initialize(bis);
 136 #endif
 137 #ifdef CONFIG_NS8382X
 138         ns8382x_initialize(bis);
 139 #endif
 140 #ifdef SCC_ENET
 141         scc_initialize(bis);
 142 #endif
 143 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 144         fec_initialize(bis);
 145 #endif
 146 #if defined(CONFIG_MPC5XXX_FEC)
 147         mpc5xxx_fec_initialize(bis);
 148 #endif
 149 #if defined(CONFIG_SK98)
 150         skge_initialize(bis);
 151 #endif
 152 #ifdef CONFIG_TSEC_ENET
 153        tsec_initialize(bis);
 154 #endif
 155 #if defined(CONFIG_AU1X00)
 156         au1x00_enet_initialize(bis);
 157 #endif
 158 #if defined(CONFIG_RTL8139)
 159         rtl8139_initialize(bis);
 160 #endif
 161
 162         if (!eth_devices) {
 163                 puts ("No ethernet found.\n");
 164         } else {
 165                 struct eth_device *dev = eth_devices;
 166                 char *ethprime = getenv ("ethprime");
 167
 168                 do {
 169                         if (eth_number)
 170                                 puts (", ");
 171
 172                         printf("%s", dev->name);
 173
 174                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
 175                                 eth_current = dev;
 176                                 puts (" [PRIME]");
 177                         }
 178
 179                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
 180                         tmp = getenv (enetvar);
 181
 182                         for (i=0; i<6; i++) {
 183                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
 184                                 if (tmp)
 185                                         tmp = (*end) ? end+1 : end;
 186                         }
 187
 188                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 189                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
 190                                     memcmp(dev->enetaddr, env_enetaddr, 6))
 191                                 {
 192                                         printf("\nWarning: %s MAC addresses don't match:\n", dev->name);
 193                                         printf("Address in SROM is         "
 194                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 195                                                dev->enetaddr[0], dev->enetaddr[1],
 196                                                dev->enetaddr[2], dev->enetaddr[3],
 197                                                dev->enetaddr[4], dev->enetaddr[5]);
 198                                         printf("Address in environment is  "
 199                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
 200                                                env_enetaddr[0], env_enetaddr[1],
 201                                                env_enetaddr[2], env_enetaddr[3],
 202                                                env_enetaddr[4], env_enetaddr[5]);
 203                                 }
 204
 205                                 memcpy(dev->enetaddr, env_enetaddr, 6);
 206                         }
 207
 208                         eth_number++;
 209                         dev = dev->next;
 210                 } while(dev != eth_devices);
 211
 212                 putc ('\n');
 213         }
 214
 215         return eth_number;
 216 }
 217
 218 void eth_set_enetaddr(int num, char *addr) {
 219         struct eth_device *dev;
 220         unsigned char enetaddr[6];
 221         char *end;
 222         int i;
 223
 224         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
 225
 226         if (!eth_devices)
 227                 return;
 228
 229         for (i=0; i<6; i++) {
 230                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
 231                 if (addr)
 232                         addr = (*end) ? end+1 : end;
 233         }
 234
 235         dev = eth_devices;
 236         while(num-- > 0) {
 237                 dev = dev->next;
 238
 239                 if (dev == eth_devices)
 240                         return;
 241         }
 242
 243         debug ( "Setting new HW address on %s\n"
 244                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
 245                 dev->name,
 246                 dev->enetaddr[0], dev->enetaddr[1],
 247                 dev->enetaddr[2], dev->enetaddr[3],
 248                 dev->enetaddr[4], dev->enetaddr[5]);
 249
 250         memcpy(dev->enetaddr, enetaddr, 6);
 251 }
 252
 253 int eth_init(bd_t *bis)
 254 {
 255         struct eth_device* old_current;
 256
 257         if (!eth_current)
 258                 return 0;
 259
 260         old_current = eth_current;
 261         do {
 262                 debug ("Trying %s\n", eth_current->name);
 263
 264                 if (eth_current->init(eth_current, bis)) {
 265                         eth_current->state = ETH_STATE_ACTIVE;
 266
 267                         return 1;
 268                 }
 269                 debug  ("FAIL\n");
 270
 271                 eth_try_another(0);
 272         } while (old_current != eth_current);
 273
 274         return 0;
 275 }
 276
 277 void eth_halt(void)
 278 {
 279         if (!eth_current)
 280                 return;
 281
 282         eth_current->halt(eth_current);
 283
 284         eth_current->state = ETH_STATE_PASSIVE;
 285 }
 286
 287 int eth_send(volatile void *packet, int length)
 288 {
 289         if (!eth_current)
 290                 return -1;
 291
 292         return eth_current->send(eth_current, packet, length);
 293 }
 294
 295 int eth_rx(void)
 296 {
 297         if (!eth_current)
 298                 return -1;
 299
 300         return eth_current->recv(eth_current);
 301 }
 302
 303 void eth_try_another(int first_restart)
 304 {
 305         static struct eth_device *first_failed = NULL;
 306
 307         if (!eth_current)
 308                 return;
 309
 310         if (first_restart)
 311         {
 312                 first_failed = eth_current;
 313         }
 314
 315         eth_current = eth_current->next;
 316
 317         if (first_failed == eth_current)
 318         {
 319                 NetRestartWrap = 1;
 320         }
 321 }
 322
 323 char *eth_get_name (void)
 324 {
 325         return (eth_current ? eth_current->name : "unknown");
 326 }
 327 #endif