2 * (C) Copyright 2001-2004
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 au1x00_enet_initialize(bd_t*);
43 extern int dc21x4x_initialize(bd_t*);
44 extern int e1000_initialize(bd_t*);
45 extern int eepro100_initialize(bd_t*);
46 extern int fec_initialize(bd_t*);
47 extern int mpc5xxx_fec_initialize(bd_t*);
48 extern int mpc8220_fec_initialize(bd_t*);
49 extern int mv6436x_eth_initialize(bd_t *);
50 extern int mv6446x_eth_initialize(bd_t *);
51 extern int plb2800_eth_initialize(bd_t*);
52 extern int ppc_4xx_eth_initialize(bd_t *);
53 extern int scc_initialize(bd_t*);
54 extern int npe_initialize(bd_t *);
55 extern int uec_initialize(int);
58 extern void (*push_packet)(volatile void *, int);
63 } eth_rcv_bufs[PKTBUFSRX];
65 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
68 static struct eth_device *eth_devices, *eth_current;
70 struct eth_device *eth_get_dev(void)
75 struct eth_device *eth_get_dev_by_name(char *devname)
77 struct eth_device *dev, *target_dev;
85 if (strcmp(devname, dev->name) == 0) {
90 } while (dev != eth_devices);
95 int eth_get_dev_index (void)
97 struct eth_device *dev;
104 for (dev = eth_devices; dev; dev = dev->next) {
105 if (dev == eth_current)
117 int eth_register(struct eth_device* dev)
119 struct eth_device *d;
122 eth_current = eth_devices = dev;
123 #ifdef CONFIG_NET_MULTI
124 /* update current ethernet name */
126 char *act = getenv("ethact");
127 if (act == NULL || strcmp(act, eth_current->name) != 0)
128 setenv("ethact", eth_current->name);
132 for (d=eth_devices; d->next!=eth_devices; d=d->next);
136 dev->state = ETH_STATE_INIT;
137 dev->next = eth_devices;
142 int eth_initialize(bd_t *bis)
145 unsigned char env_enetaddr[6];
146 int i, eth_number = 0;
152 show_boot_progress (64);
153 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
156 /* Try board-specific initialization first. If it fails or isn't
157 * present, try the cpu-specific initialization */
158 if (board_eth_init(bis) < 0)
161 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
162 mv6436x_eth_initialize(bis);
164 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
165 mv6446x_eth_initialize(bis);
167 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
168 ppc_4xx_eth_initialize(bis);
170 #ifdef CONFIG_PLB2800_ETHER
171 plb2800_eth_initialize(bis);
176 #if defined(CONFIG_MPC5xxx_FEC)
177 mpc5xxx_fec_initialize(bis);
179 #if defined(CONFIG_MPC8220_FEC)
180 mpc8220_fec_initialize(bis);
182 #if defined(CONFIG_UEC_ETH1)
185 #if defined(CONFIG_UEC_ETH2)
188 #if defined(CONFIG_UEC_ETH3)
191 #if defined(CONFIG_UEC_ETH4)
195 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
198 #if defined(CONFIG_AU1X00)
199 au1x00_enet_initialize(bis);
201 #if defined(CONFIG_IXP4XX_NPE)
205 e1000_initialize(bis);
207 #ifdef CONFIG_EEPRO100
208 eepro100_initialize(bis);
211 dc21x4x_initialize(bis);
214 puts ("No ethernet found.\n");
215 show_boot_progress (-64);
217 struct eth_device *dev = eth_devices;
218 char *ethprime = getenv ("ethprime");
220 show_boot_progress (65);
225 printf("%s", dev->name);
227 if (ethprime && strcmp (dev->name, ethprime) == 0) {
232 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
233 tmp = getenv (enetvar);
235 for (i=0; i<6; i++) {
236 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
238 tmp = (*end) ? end+1 : end;
241 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
242 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
243 memcmp(dev->enetaddr, env_enetaddr, 6))
245 printf ("\nWarning: %s MAC addresses don't match:\n",
247 printf ("Address in SROM is "
248 "%02X:%02X:%02X:%02X:%02X:%02X\n",
249 dev->enetaddr[0], dev->enetaddr[1],
250 dev->enetaddr[2], dev->enetaddr[3],
251 dev->enetaddr[4], dev->enetaddr[5]);
252 printf ("Address in environment is "
253 "%02X:%02X:%02X:%02X:%02X:%02X\n",
254 env_enetaddr[0], env_enetaddr[1],
255 env_enetaddr[2], env_enetaddr[3],
256 env_enetaddr[4], env_enetaddr[5]);
259 memcpy(dev->enetaddr, env_enetaddr, 6);
264 } while(dev != eth_devices);
266 #ifdef CONFIG_NET_MULTI
267 /* update current ethernet name */
269 char *act = getenv("ethact");
270 if (act == NULL || strcmp(act, eth_current->name) != 0)
271 setenv("ethact", eth_current->name);
273 setenv("ethact", NULL);
282 void eth_set_enetaddr(int num, char *addr) {
283 struct eth_device *dev;
284 unsigned char enetaddr[6];
288 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
293 for (i=0; i<6; i++) {
294 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
296 addr = (*end) ? end+1 : end;
303 if (dev == eth_devices)
307 debug ( "Setting new HW address on %s\n"
308 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
310 enetaddr[0], enetaddr[1],
311 enetaddr[2], enetaddr[3],
312 enetaddr[4], enetaddr[5]);
314 memcpy(dev->enetaddr, enetaddr, 6);
316 #ifdef CONFIG_MCAST_TFTP
318 * mcast_addr: multicast ipaddr from which multicast Mac is made
319 * join: 1=join, 0=leave.
321 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
324 if (!eth_current || !eth_current->mcast)
326 mcast_mac[5] = htonl(mcast_ip) & 0xff;
327 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
328 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
332 return eth_current->mcast(eth_current, mcast_mac, join);
335 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
336 * and this is the ethernet-crc method needed for TSEC -- and perhaps
337 * some other adapter -- hash tables
339 #define CRCPOLY_LE 0xedb88320
340 u32 ether_crc (size_t len, unsigned char const *p)
347 for (i = 0; i < 8; i++)
348 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
350 /* an reverse the bits, cuz of way they arrive -- last-first */
351 crc = (crc >> 16) | (crc << 16);
352 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
353 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
354 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
355 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
362 int eth_init(bd_t *bis)
364 struct eth_device* old_current;
367 puts ("No ethernet found.\n");
371 old_current = eth_current;
373 debug ("Trying %s\n", eth_current->name);
375 if (eth_current->init(eth_current,bis) >= 0) {
376 eth_current->state = ETH_STATE_ACTIVE;
383 } while (old_current != eth_current);
393 eth_current->halt(eth_current);
395 eth_current->state = ETH_STATE_PASSIVE;
398 int eth_send(volatile void *packet, int length)
403 return eth_current->send(eth_current, packet, length);
411 return eth_current->recv(eth_current);
415 static void eth_save_packet(volatile void *packet, int length)
417 volatile char *p = packet;
420 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
423 if (PKTSIZE < length)
426 for (i = 0; i < length; i++)
427 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
429 eth_rcv_bufs[eth_rcv_last].length = length;
430 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
433 int eth_receive(volatile void *packet, int length)
435 volatile char *p = packet;
436 void *pp = push_packet;
439 if (eth_rcv_current == eth_rcv_last) {
440 push_packet = eth_save_packet;
444 if (eth_rcv_current == eth_rcv_last)
448 if (length < eth_rcv_bufs[eth_rcv_current].length)
451 length = eth_rcv_bufs[eth_rcv_current].length;
453 for (i = 0; i < length; i++)
454 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
456 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
459 #endif /* CONFIG_API */
461 void eth_try_another(int first_restart)
463 static struct eth_device *first_failed = NULL;
467 * Do not rotate between network interfaces when
468 * 'ethrotate' variable is set to 'no'.
470 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
471 (strcmp(ethrotate, "no") == 0))
478 first_failed = eth_current;
481 eth_current = eth_current->next;
483 #ifdef CONFIG_NET_MULTI
484 /* update current ethernet name */
486 char *act = getenv("ethact");
487 if (act == NULL || strcmp(act, eth_current->name) != 0)
488 setenv("ethact", eth_current->name);
492 if (first_failed == eth_current) {
497 #ifdef CONFIG_NET_MULTI
498 void eth_set_current(void)
501 struct eth_device* old_current;
503 if (!eth_current) /* XXX no current */
506 act = getenv("ethact");
508 old_current = eth_current;
510 if (strcmp(eth_current->name, act) == 0)
512 eth_current = eth_current->next;
513 } while (old_current != eth_current);
516 setenv("ethact", eth_current->name);
520 char *eth_get_name (void)
522 return (eth_current ? eth_current->name : "unknown");
524 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
526 extern int at91rm9200_miiphy_initialize(bd_t *bis);
527 extern int emac4xx_miiphy_initialize(bd_t *bis);
528 extern int mcf52x2_miiphy_initialize(bd_t *bis);
529 extern int ns7520_miiphy_initialize(bd_t *bis);
530 extern int davinci_eth_miiphy_initialize(bd_t *bis);
533 int eth_initialize(bd_t *bis)
535 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
539 #if defined(CONFIG_AT91RM9200)
540 at91rm9200_miiphy_initialize(bis);
542 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
543 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
544 emac4xx_miiphy_initialize(bis);
546 #if defined(CONFIG_MCF52x2)
547 mcf52x2_miiphy_initialize(bis);
549 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
550 ns7520_miiphy_initialize(bis);
552 #if defined(CONFIG_DRIVER_TI_EMAC)
553 davinci_eth_miiphy_initialize(bis);