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 mpc8220_fec_initialize(bd_t*);
43 extern int mv6436x_eth_initialize(bd_t *);
44 extern int mv6446x_eth_initialize(bd_t *);
45 extern int ppc_4xx_eth_initialize(bd_t *);
46 extern int scc_initialize(bd_t*);
47 extern int uec_initialize(int);
50 extern void (*push_packet)(volatile void *, int);
55 } eth_rcv_bufs[PKTBUFSRX];
57 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
60 static struct eth_device *eth_devices, *eth_current;
62 struct eth_device *eth_get_dev(void)
67 struct eth_device *eth_get_dev_by_name(char *devname)
69 struct eth_device *dev, *target_dev;
77 if (strcmp(devname, dev->name) == 0) {
82 } while (dev != eth_devices);
87 int eth_get_dev_index (void)
89 struct eth_device *dev;
96 for (dev = eth_devices; dev; dev = dev->next) {
97 if (dev == eth_current)
109 int eth_register(struct eth_device* dev)
111 struct eth_device *d;
114 eth_current = eth_devices = dev;
115 #ifdef CONFIG_NET_MULTI
116 /* update current ethernet name */
118 char *act = getenv("ethact");
119 if (act == NULL || strcmp(act, eth_current->name) != 0)
120 setenv("ethact", eth_current->name);
124 for (d=eth_devices; d->next!=eth_devices; d=d->next);
128 dev->state = ETH_STATE_INIT;
129 dev->next = eth_devices;
134 int eth_initialize(bd_t *bis)
137 unsigned char env_enetaddr[6];
138 int i, eth_number = 0;
144 show_boot_progress (64);
145 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
148 /* Try board-specific initialization first. If it fails or isn't
149 * present, try the cpu-specific initialization */
150 if (board_eth_init(bis) < 0)
153 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
154 mv6436x_eth_initialize(bis);
156 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
157 mv6446x_eth_initialize(bis);
159 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
160 ppc_4xx_eth_initialize(bis);
165 #if defined(CONFIG_MPC8220_FEC)
166 mpc8220_fec_initialize(bis);
168 #if defined(CONFIG_UEC_ETH1)
171 #if defined(CONFIG_UEC_ETH2)
174 #if defined(CONFIG_UEC_ETH3)
177 #if defined(CONFIG_UEC_ETH4)
180 #if defined(CONFIG_UEC_ETH5)
183 #if defined(CONFIG_UEC_ETH6)
187 puts ("No ethernet found.\n");
188 show_boot_progress (-64);
190 struct eth_device *dev = eth_devices;
191 char *ethprime = getenv ("ethprime");
193 show_boot_progress (65);
198 printf("%s", dev->name);
200 if (ethprime && strcmp (dev->name, ethprime) == 0) {
205 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
206 tmp = getenv (enetvar);
208 for (i=0; i<6; i++) {
209 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
211 tmp = (*end) ? end+1 : end;
214 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
215 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
216 memcmp(dev->enetaddr, env_enetaddr, 6))
218 printf ("\nWarning: %s MAC addresses don't match:\n",
220 printf ("Address in SROM is "
221 "%02X:%02X:%02X:%02X:%02X:%02X\n",
222 dev->enetaddr[0], dev->enetaddr[1],
223 dev->enetaddr[2], dev->enetaddr[3],
224 dev->enetaddr[4], dev->enetaddr[5]);
225 printf ("Address in environment is "
226 "%02X:%02X:%02X:%02X:%02X:%02X\n",
227 env_enetaddr[0], env_enetaddr[1],
228 env_enetaddr[2], env_enetaddr[3],
229 env_enetaddr[4], env_enetaddr[5]);
232 memcpy(dev->enetaddr, env_enetaddr, 6);
237 } while(dev != eth_devices);
239 #ifdef CONFIG_NET_MULTI
240 /* update current ethernet name */
242 char *act = getenv("ethact");
243 if (act == NULL || strcmp(act, eth_current->name) != 0)
244 setenv("ethact", eth_current->name);
246 setenv("ethact", NULL);
255 void eth_set_enetaddr(int num, char *addr) {
256 struct eth_device *dev;
257 unsigned char enetaddr[6];
261 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
266 for (i=0; i<6; i++) {
267 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
269 addr = (*end) ? end+1 : end;
276 if (dev == eth_devices)
280 debug ( "Setting new HW address on %s\n"
281 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
283 enetaddr[0], enetaddr[1],
284 enetaddr[2], enetaddr[3],
285 enetaddr[4], enetaddr[5]);
287 memcpy(dev->enetaddr, enetaddr, 6);
289 #ifdef CONFIG_MCAST_TFTP
291 * mcast_addr: multicast ipaddr from which multicast Mac is made
292 * join: 1=join, 0=leave.
294 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
297 if (!eth_current || !eth_current->mcast)
299 mcast_mac[5] = htonl(mcast_ip) & 0xff;
300 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
301 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
305 return eth_current->mcast(eth_current, mcast_mac, join);
308 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
309 * and this is the ethernet-crc method needed for TSEC -- and perhaps
310 * some other adapter -- hash tables
312 #define CRCPOLY_LE 0xedb88320
313 u32 ether_crc (size_t len, unsigned char const *p)
320 for (i = 0; i < 8; i++)
321 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
323 /* an reverse the bits, cuz of way they arrive -- last-first */
324 crc = (crc >> 16) | (crc << 16);
325 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
326 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
327 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
328 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
335 int eth_init(bd_t *bis)
337 struct eth_device* old_current;
340 puts ("No ethernet found.\n");
344 old_current = eth_current;
346 debug ("Trying %s\n", eth_current->name);
348 if (eth_current->init(eth_current,bis) >= 0) {
349 eth_current->state = ETH_STATE_ACTIVE;
356 } while (old_current != eth_current);
366 eth_current->halt(eth_current);
368 eth_current->state = ETH_STATE_PASSIVE;
371 int eth_send(volatile void *packet, int length)
376 return eth_current->send(eth_current, packet, length);
384 return eth_current->recv(eth_current);
388 static void eth_save_packet(volatile void *packet, int length)
390 volatile char *p = packet;
393 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
396 if (PKTSIZE < length)
399 for (i = 0; i < length; i++)
400 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
402 eth_rcv_bufs[eth_rcv_last].length = length;
403 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
406 int eth_receive(volatile void *packet, int length)
408 volatile char *p = packet;
409 void *pp = push_packet;
412 if (eth_rcv_current == eth_rcv_last) {
413 push_packet = eth_save_packet;
417 if (eth_rcv_current == eth_rcv_last)
421 if (length < eth_rcv_bufs[eth_rcv_current].length)
424 length = eth_rcv_bufs[eth_rcv_current].length;
426 for (i = 0; i < length; i++)
427 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
429 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
432 #endif /* CONFIG_API */
434 void eth_try_another(int first_restart)
436 static struct eth_device *first_failed = NULL;
440 * Do not rotate between network interfaces when
441 * 'ethrotate' variable is set to 'no'.
443 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
444 (strcmp(ethrotate, "no") == 0))
451 first_failed = eth_current;
454 eth_current = eth_current->next;
456 #ifdef CONFIG_NET_MULTI
457 /* update current ethernet name */
459 char *act = getenv("ethact");
460 if (act == NULL || strcmp(act, eth_current->name) != 0)
461 setenv("ethact", eth_current->name);
465 if (first_failed == eth_current) {
470 #ifdef CONFIG_NET_MULTI
471 void eth_set_current(void)
474 struct eth_device* old_current;
476 if (!eth_current) /* XXX no current */
479 act = getenv("ethact");
481 old_current = eth_current;
483 if (strcmp(eth_current->name, act) == 0)
485 eth_current = eth_current->next;
486 } while (old_current != eth_current);
489 setenv("ethact", eth_current->name);
493 char *eth_get_name (void)
495 return (eth_current ? eth_current->name : "unknown");
497 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
499 extern int at91rm9200_miiphy_initialize(bd_t *bis);
500 extern int emac4xx_miiphy_initialize(bd_t *bis);
501 extern int mcf52x2_miiphy_initialize(bd_t *bis);
502 extern int ns7520_miiphy_initialize(bd_t *bis);
503 extern int davinci_eth_miiphy_initialize(bd_t *bis);
506 int eth_initialize(bd_t *bis)
508 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
512 #if defined(CONFIG_AT91RM9200)
513 at91rm9200_miiphy_initialize(bis);
515 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
516 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
517 emac4xx_miiphy_initialize(bis);
519 #if defined(CONFIG_MCF52x2)
520 mcf52x2_miiphy_initialize(bis);
522 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
523 ns7520_miiphy_initialize(bis);
525 #if defined(CONFIG_DRIVER_TI_EMAC)
526 davinci_eth_miiphy_initialize(bis);