2 * (C) Copyright 2001-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
29 #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
32 * CPU and board-specific Ethernet initializations. Aliased function
33 * signals caller to move on
35 static int __def_eth_init(bd_t *bis)
39 int cpu_eth_init(bd_t *bis) __attribute((weak, alias("__def_eth_init")));
40 int board_eth_init(bd_t *bis) __attribute((weak, alias("__def_eth_init")));
42 extern int fec_initialize(bd_t*);
43 extern int mpc8220_fec_initialize(bd_t*);
44 extern int mv6436x_eth_initialize(bd_t *);
45 extern int mv6446x_eth_initialize(bd_t *);
46 extern int ppc_4xx_eth_initialize(bd_t *);
47 extern int scc_initialize(bd_t*);
48 extern int uec_initialize(int);
51 extern void (*push_packet)(volatile void *, int);
56 } eth_rcv_bufs[PKTBUFSRX];
58 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
61 static struct eth_device *eth_devices, *eth_current;
63 struct eth_device *eth_get_dev(void)
68 struct eth_device *eth_get_dev_by_name(char *devname)
70 struct eth_device *dev, *target_dev;
78 if (strcmp(devname, dev->name) == 0) {
83 } while (dev != eth_devices);
88 int eth_get_dev_index (void)
90 struct eth_device *dev;
97 for (dev = eth_devices; dev; dev = dev->next) {
98 if (dev == eth_current)
110 int eth_register(struct eth_device* dev)
112 struct eth_device *d;
115 eth_current = eth_devices = dev;
116 #ifdef CONFIG_NET_MULTI
117 /* update current ethernet name */
119 char *act = getenv("ethact");
120 if (act == NULL || strcmp(act, eth_current->name) != 0)
121 setenv("ethact", eth_current->name);
125 for (d=eth_devices; d->next!=eth_devices; d=d->next);
129 dev->state = ETH_STATE_INIT;
130 dev->next = eth_devices;
135 int eth_initialize(bd_t *bis)
138 unsigned char env_enetaddr[6];
139 int i, eth_number = 0;
145 show_boot_progress (64);
146 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
149 /* Try board-specific initialization first. If it fails or isn't
150 * present, try the cpu-specific initialization */
151 if (board_eth_init(bis) < 0)
154 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
155 mv6436x_eth_initialize(bis);
157 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
158 mv6446x_eth_initialize(bis);
160 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
161 ppc_4xx_eth_initialize(bis);
166 #if defined(CONFIG_MPC8220_FEC)
167 mpc8220_fec_initialize(bis);
169 #if defined(CONFIG_UEC_ETH1)
172 #if defined(CONFIG_UEC_ETH2)
175 #if defined(CONFIG_UEC_ETH3)
178 #if defined(CONFIG_UEC_ETH4)
181 #if defined(CONFIG_UEC_ETH5)
184 #if defined(CONFIG_UEC_ETH6)
188 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
192 puts ("No ethernet found.\n");
193 show_boot_progress (-64);
195 struct eth_device *dev = eth_devices;
196 char *ethprime = getenv ("ethprime");
198 show_boot_progress (65);
203 printf("%s", dev->name);
205 if (ethprime && strcmp (dev->name, ethprime) == 0) {
210 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
211 tmp = getenv (enetvar);
213 for (i=0; i<6; i++) {
214 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
216 tmp = (*end) ? end+1 : end;
219 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
220 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
221 memcmp(dev->enetaddr, env_enetaddr, 6))
223 printf ("\nWarning: %s MAC addresses don't match:\n",
225 printf ("Address in SROM is "
226 "%02X:%02X:%02X:%02X:%02X:%02X\n",
227 dev->enetaddr[0], dev->enetaddr[1],
228 dev->enetaddr[2], dev->enetaddr[3],
229 dev->enetaddr[4], dev->enetaddr[5]);
230 printf ("Address in environment is "
231 "%02X:%02X:%02X:%02X:%02X:%02X\n",
232 env_enetaddr[0], env_enetaddr[1],
233 env_enetaddr[2], env_enetaddr[3],
234 env_enetaddr[4], env_enetaddr[5]);
237 memcpy(dev->enetaddr, env_enetaddr, 6);
242 } while(dev != eth_devices);
244 #ifdef CONFIG_NET_MULTI
245 /* update current ethernet name */
247 char *act = getenv("ethact");
248 if (act == NULL || strcmp(act, eth_current->name) != 0)
249 setenv("ethact", eth_current->name);
251 setenv("ethact", NULL);
260 void eth_set_enetaddr(int num, char *addr) {
261 struct eth_device *dev;
262 unsigned char enetaddr[6];
266 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
271 for (i=0; i<6; i++) {
272 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
274 addr = (*end) ? end+1 : end;
281 if (dev == eth_devices)
285 debug ( "Setting new HW address on %s\n"
286 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
288 enetaddr[0], enetaddr[1],
289 enetaddr[2], enetaddr[3],
290 enetaddr[4], enetaddr[5]);
292 memcpy(dev->enetaddr, enetaddr, 6);
294 #ifdef CONFIG_MCAST_TFTP
296 * mcast_addr: multicast ipaddr from which multicast Mac is made
297 * join: 1=join, 0=leave.
299 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
302 if (!eth_current || !eth_current->mcast)
304 mcast_mac[5] = htonl(mcast_ip) & 0xff;
305 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
306 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
310 return eth_current->mcast(eth_current, mcast_mac, join);
313 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
314 * and this is the ethernet-crc method needed for TSEC -- and perhaps
315 * some other adapter -- hash tables
317 #define CRCPOLY_LE 0xedb88320
318 u32 ether_crc (size_t len, unsigned char const *p)
325 for (i = 0; i < 8; i++)
326 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
328 /* an reverse the bits, cuz of way they arrive -- last-first */
329 crc = (crc >> 16) | (crc << 16);
330 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
331 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
332 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
333 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
340 int eth_init(bd_t *bis)
342 struct eth_device* old_current;
345 puts ("No ethernet found.\n");
349 old_current = eth_current;
351 debug ("Trying %s\n", eth_current->name);
353 if (eth_current->init(eth_current,bis) >= 0) {
354 eth_current->state = ETH_STATE_ACTIVE;
361 } while (old_current != eth_current);
371 eth_current->halt(eth_current);
373 eth_current->state = ETH_STATE_PASSIVE;
376 int eth_send(volatile void *packet, int length)
381 return eth_current->send(eth_current, packet, length);
389 return eth_current->recv(eth_current);
393 static void eth_save_packet(volatile void *packet, int length)
395 volatile char *p = packet;
398 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
401 if (PKTSIZE < length)
404 for (i = 0; i < length; i++)
405 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
407 eth_rcv_bufs[eth_rcv_last].length = length;
408 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
411 int eth_receive(volatile void *packet, int length)
413 volatile char *p = packet;
414 void *pp = push_packet;
417 if (eth_rcv_current == eth_rcv_last) {
418 push_packet = eth_save_packet;
422 if (eth_rcv_current == eth_rcv_last)
426 if (length < eth_rcv_bufs[eth_rcv_current].length)
429 length = eth_rcv_bufs[eth_rcv_current].length;
431 for (i = 0; i < length; i++)
432 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
434 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
437 #endif /* CONFIG_API */
439 void eth_try_another(int first_restart)
441 static struct eth_device *first_failed = NULL;
445 * Do not rotate between network interfaces when
446 * 'ethrotate' variable is set to 'no'.
448 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
449 (strcmp(ethrotate, "no") == 0))
456 first_failed = eth_current;
459 eth_current = eth_current->next;
461 #ifdef CONFIG_NET_MULTI
462 /* update current ethernet name */
464 char *act = getenv("ethact");
465 if (act == NULL || strcmp(act, eth_current->name) != 0)
466 setenv("ethact", eth_current->name);
470 if (first_failed == eth_current) {
475 #ifdef CONFIG_NET_MULTI
476 void eth_set_current(void)
479 struct eth_device* old_current;
481 if (!eth_current) /* XXX no current */
484 act = getenv("ethact");
486 old_current = eth_current;
488 if (strcmp(eth_current->name, act) == 0)
490 eth_current = eth_current->next;
491 } while (old_current != eth_current);
494 setenv("ethact", eth_current->name);
498 char *eth_get_name (void)
500 return (eth_current ? eth_current->name : "unknown");
502 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
504 extern int at91rm9200_miiphy_initialize(bd_t *bis);
505 extern int emac4xx_miiphy_initialize(bd_t *bis);
506 extern int mcf52x2_miiphy_initialize(bd_t *bis);
507 extern int ns7520_miiphy_initialize(bd_t *bis);
508 extern int davinci_eth_miiphy_initialize(bd_t *bis);
511 int eth_initialize(bd_t *bis)
513 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
517 #if defined(CONFIG_AT91RM9200)
518 at91rm9200_miiphy_initialize(bis);
520 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
521 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
522 emac4xx_miiphy_initialize(bis);
524 #if defined(CONFIG_MCF52x2)
525 mcf52x2_miiphy_initialize(bis);
527 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
528 ns7520_miiphy_initialize(bis);
530 #if defined(CONFIG_DRIVER_TI_EMAC)
531 davinci_eth_miiphy_initialize(bis);