eth.c 8.2 KB

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  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. #include <common.h>
  24. #include <command.h>
  25. #include <net.h>
  26. #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
  27. #ifdef CFG_GT_6426x
  28. extern int gt6426x_eth_initialize(bd_t *bis);
  29. #endif
  30. extern int au1x00_enet_initialize(bd_t*);
  31. extern int dc21x4x_initialize(bd_t*);
  32. extern int e1000_initialize(bd_t*);
  33. extern int eepro100_initialize(bd_t*);
  34. extern int eth_3com_initialize(bd_t*);
  35. extern int fec_initialize(bd_t*);
  36. extern int inca_switch_initialize(bd_t*);
  37. extern int mpc5xxx_fec_initialize(bd_t*);
  38. extern int mv6436x_eth_initialize(bd_t *);
  39. extern int mv6446x_eth_initialize(bd_t *);
  40. extern int natsemi_initialize(bd_t*);
  41. extern int ns8382x_initialize(bd_t*);
  42. extern int pcnet_initialize(bd_t*);
  43. extern int plb2800_eth_initialize(bd_t*);
  44. extern int ppc_4xx_eth_initialize(bd_t *);
  45. extern int ppc_440x_eth_initialize(bd_t *);
  46. extern int rtl8139_initialize(bd_t*);
  47. extern int scc_initialize(bd_t*);
  48. extern int skge_initialize(bd_t*);
  49. extern int tsec_initialize(bd_t*);
  50. static struct eth_device *eth_devices, *eth_current;
  51. struct eth_device *eth_get_dev(void)
  52. {
  53. return eth_current;
  54. }
  55. int eth_get_dev_index (void)
  56. {
  57. struct eth_device *dev;
  58. int num = 0;
  59. if (!eth_devices) {
  60. return (-1);
  61. }
  62. for (dev = eth_devices; dev; dev = dev->next) {
  63. if (dev == eth_current)
  64. break;
  65. ++num;
  66. }
  67. if (dev) {
  68. return (num);
  69. }
  70. return (0);
  71. }
  72. int eth_register(struct eth_device* dev)
  73. {
  74. struct eth_device *d;
  75. if (!eth_devices) {
  76. eth_current = eth_devices = dev;
  77. #ifdef CONFIG_NET_MULTI
  78. /* update current ethernet name */
  79. {
  80. char *act = getenv("ethact");
  81. if (act == NULL || strcmp(act, eth_current->name) != 0)
  82. setenv("ethact", eth_current->name);
  83. }
  84. #endif
  85. } else {
  86. for (d=eth_devices; d->next!=eth_devices; d=d->next);
  87. d->next = dev;
  88. }
  89. dev->state = ETH_STATE_INIT;
  90. dev->next = eth_devices;
  91. return 0;
  92. }
  93. int eth_initialize(bd_t *bis)
  94. {
  95. unsigned char enetvar[32], env_enetaddr[6];
  96. int i, eth_number = 0;
  97. char *tmp, *end;
  98. eth_devices = NULL;
  99. eth_current = NULL;
  100. #ifdef CONFIG_DB64360
  101. mv6436x_eth_initialize(bis);
  102. #endif
  103. #ifdef CONFIG_DB64460
  104. mv6446x_eth_initialize(bis);
  105. #endif
  106. #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || ( defined(CONFIG_440) && !defined(CONFIG_NET_MULTI) )
  107. ppc_4xx_eth_initialize(bis);
  108. #endif
  109. #if defined(CONFIG_440) && defined(CONFIG_NET_MULTI)
  110. ppc_440x_eth_initialize(bis);
  111. #endif
  112. #ifdef CONFIG_INCA_IP_SWITCH
  113. inca_switch_initialize(bis);
  114. #endif
  115. #ifdef CONFIG_PLB2800_ETHER
  116. plb2800_eth_initialize(bis);
  117. #endif
  118. #ifdef CONFIG_E1000
  119. e1000_initialize(bis);
  120. #endif
  121. #ifdef CONFIG_EEPRO100
  122. eepro100_initialize(bis);
  123. #endif
  124. #ifdef CONFIG_TULIP
  125. dc21x4x_initialize(bis);
  126. #endif
  127. #ifdef CONFIG_3COM
  128. eth_3com_initialize(bis);
  129. #endif
  130. #ifdef CONFIG_PCNET
  131. pcnet_initialize(bis);
  132. #endif
  133. #ifdef CFG_GT_6426x
  134. gt6426x_eth_initialize(bis);
  135. #endif
  136. #ifdef CONFIG_NATSEMI
  137. natsemi_initialize(bis);
  138. #endif
  139. #ifdef CONFIG_NS8382X
  140. ns8382x_initialize(bis);
  141. #endif
  142. #ifdef SCC_ENET
  143. scc_initialize(bis);
  144. #endif
  145. #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
  146. fec_initialize(bis);
  147. #endif
  148. #if defined(CONFIG_MPC5xxx_FEC)
  149. mpc5xxx_fec_initialize(bis);
  150. #endif
  151. #if defined(CONFIG_SK98)
  152. skge_initialize(bis);
  153. #endif
  154. #ifdef CONFIG_TSEC_ENET
  155. tsec_initialize(bis);
  156. #endif
  157. #if defined(CONFIG_AU1X00)
  158. au1x00_enet_initialize(bis);
  159. #endif
  160. #if defined(CONFIG_RTL8139)
  161. rtl8139_initialize(bis);
  162. #endif
  163. if (!eth_devices) {
  164. puts ("No ethernet found.\n");
  165. } else {
  166. struct eth_device *dev = eth_devices;
  167. char *ethprime = getenv ("ethprime");
  168. do {
  169. if (eth_number)
  170. puts (", ");
  171. printf("%s", dev->name);
  172. if (ethprime && strcmp (dev->name, ethprime) == 0) {
  173. eth_current = dev;
  174. puts (" [PRIME]");
  175. }
  176. sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
  177. tmp = getenv (enetvar);
  178. for (i=0; i<6; i++) {
  179. env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
  180. if (tmp)
  181. tmp = (*end) ? end+1 : end;
  182. }
  183. if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
  184. if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
  185. memcmp(dev->enetaddr, env_enetaddr, 6))
  186. {
  187. printf("\nWarning: %s MAC addresses don't match:\n", dev->name);
  188. printf("Address in SROM is "
  189. "%02X:%02X:%02X:%02X:%02X:%02X\n",
  190. dev->enetaddr[0], dev->enetaddr[1],
  191. dev->enetaddr[2], dev->enetaddr[3],
  192. dev->enetaddr[4], dev->enetaddr[5]);
  193. printf("Address in environment is "
  194. "%02X:%02X:%02X:%02X:%02X:%02X\n",
  195. env_enetaddr[0], env_enetaddr[1],
  196. env_enetaddr[2], env_enetaddr[3],
  197. env_enetaddr[4], env_enetaddr[5]);
  198. }
  199. memcpy(dev->enetaddr, env_enetaddr, 6);
  200. }
  201. eth_number++;
  202. dev = dev->next;
  203. } while(dev != eth_devices);
  204. #ifdef CONFIG_NET_MULTI
  205. /* update current ethernet name */
  206. if (eth_current) {
  207. char *act = getenv("ethact");
  208. if (act == NULL || strcmp(act, eth_current->name) != 0)
  209. setenv("ethact", eth_current->name);
  210. } else
  211. setenv("ethact", NULL);
  212. #endif
  213. putc ('\n');
  214. }
  215. return eth_number;
  216. }
  217. void eth_set_enetaddr(int num, char *addr) {
  218. struct eth_device *dev;
  219. unsigned char enetaddr[6];
  220. char *end;
  221. int i;
  222. debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
  223. if (!eth_devices)
  224. return;
  225. for (i=0; i<6; i++) {
  226. enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
  227. if (addr)
  228. addr = (*end) ? end+1 : end;
  229. }
  230. dev = eth_devices;
  231. while(num-- > 0) {
  232. dev = dev->next;
  233. if (dev == eth_devices)
  234. return;
  235. }
  236. debug ( "Setting new HW address on %s\n"
  237. "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
  238. dev->name,
  239. dev->enetaddr[0], dev->enetaddr[1],
  240. dev->enetaddr[2], dev->enetaddr[3],
  241. dev->enetaddr[4], dev->enetaddr[5]);
  242. memcpy(dev->enetaddr, enetaddr, 6);
  243. }
  244. int eth_init(bd_t *bis)
  245. {
  246. struct eth_device* old_current;
  247. if (!eth_current)
  248. return 0;
  249. old_current = eth_current;
  250. do {
  251. debug ("Trying %s\n", eth_current->name);
  252. if (eth_current->init(eth_current, bis)) {
  253. eth_current->state = ETH_STATE_ACTIVE;
  254. return 1;
  255. }
  256. debug ("FAIL\n");
  257. eth_try_another(0);
  258. } while (old_current != eth_current);
  259. return 0;
  260. }
  261. void eth_halt(void)
  262. {
  263. if (!eth_current)
  264. return;
  265. eth_current->halt(eth_current);
  266. eth_current->state = ETH_STATE_PASSIVE;
  267. }
  268. int eth_send(volatile void *packet, int length)
  269. {
  270. if (!eth_current)
  271. return -1;
  272. return eth_current->send(eth_current, packet, length);
  273. }
  274. int eth_rx(void)
  275. {
  276. if (!eth_current)
  277. return -1;
  278. return eth_current->recv(eth_current);
  279. }
  280. void eth_try_another(int first_restart)
  281. {
  282. static struct eth_device *first_failed = NULL;
  283. if (!eth_current)
  284. return;
  285. if (first_restart)
  286. {
  287. first_failed = eth_current;
  288. }
  289. eth_current = eth_current->next;
  290. #ifdef CONFIG_NET_MULTI
  291. /* update current ethernet name */
  292. {
  293. char *act = getenv("ethact");
  294. if (act == NULL || strcmp(act, eth_current->name) != 0)
  295. setenv("ethact", eth_current->name);
  296. }
  297. #endif
  298. if (first_failed == eth_current)
  299. {
  300. NetRestartWrap = 1;
  301. }
  302. }
  303. #ifdef CONFIG_NET_MULTI
  304. void eth_set_current(void)
  305. {
  306. char *act;
  307. struct eth_device* old_current;
  308. if (!eth_current) /* XXX no current */
  309. return;
  310. act = getenv("ethact");
  311. if (act != NULL) {
  312. old_current = eth_current;
  313. do {
  314. if (strcmp(eth_current->name, act) == 0)
  315. return;
  316. eth_current = eth_current->next;
  317. } while (old_current != eth_current);
  318. }
  319. setenv("ethact", eth_current->name);
  320. }
  321. #endif
  322. char *eth_get_name (void)
  323. {
  324. return (eth_current ? eth_current->name : "unknown");
  325. }
  326. #endif