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 inca_switch_initialize(bd_t*);
48 extern int mpc5xxx_fec_initialize(bd_t*);
49 extern int mpc512x_fec_initialize(bd_t*);
50 extern int mpc8220_fec_initialize(bd_t*);
51 extern int mv6436x_eth_initialize(bd_t *);
52 extern int mv6446x_eth_initialize(bd_t *);
53 extern int plb2800_eth_initialize(bd_t*);
54 extern int ppc_4xx_eth_initialize(bd_t *);
55 extern int scc_initialize(bd_t*);
56 extern int npe_initialize(bd_t *);
57 extern int uec_initialize(int);
60 extern void (*push_packet)(volatile void *, int);
65 } eth_rcv_bufs[PKTBUFSRX];
67 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
70 static struct eth_device *eth_devices, *eth_current;
72 struct eth_device *eth_get_dev(void)
77 struct eth_device *eth_get_dev_by_name(char *devname)
79 struct eth_device *dev, *target_dev;
87 if (strcmp(devname, dev->name) == 0) {
92 } while (dev != eth_devices);
97 int eth_get_dev_index (void)
99 struct eth_device *dev;
106 for (dev = eth_devices; dev; dev = dev->next) {
107 if (dev == eth_current)
119 int eth_register(struct eth_device* dev)
121 struct eth_device *d;
124 eth_current = eth_devices = dev;
125 #ifdef CONFIG_NET_MULTI
126 /* update current ethernet name */
128 char *act = getenv("ethact");
129 if (act == NULL || strcmp(act, eth_current->name) != 0)
130 setenv("ethact", eth_current->name);
134 for (d=eth_devices; d->next!=eth_devices; d=d->next);
138 dev->state = ETH_STATE_INIT;
139 dev->next = eth_devices;
144 int eth_initialize(bd_t *bis)
147 unsigned char env_enetaddr[6];
148 int i, eth_number = 0;
154 show_boot_progress (64);
155 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
158 /* Try board-specific initialization first. If it fails or isn't
159 * present, try the cpu-specific initialization */
160 if (board_eth_init(bis) < 0)
163 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
164 mv6436x_eth_initialize(bis);
166 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
167 mv6446x_eth_initialize(bis);
169 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
170 ppc_4xx_eth_initialize(bis);
172 #ifdef CONFIG_INCA_IP_SWITCH
173 inca_switch_initialize(bis);
175 #ifdef CONFIG_PLB2800_ETHER
176 plb2800_eth_initialize(bis);
181 #if defined(CONFIG_MPC5xxx_FEC)
182 mpc5xxx_fec_initialize(bis);
184 #if defined(CONFIG_MPC512x_FEC)
185 mpc512x_fec_initialize (bis);
187 #if defined(CONFIG_MPC8220_FEC)
188 mpc8220_fec_initialize(bis);
190 #if defined(CONFIG_UEC_ETH1)
193 #if defined(CONFIG_UEC_ETH2)
196 #if defined(CONFIG_UEC_ETH3)
199 #if defined(CONFIG_UEC_ETH4)
203 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
206 #if defined(CONFIG_AU1X00)
207 au1x00_enet_initialize(bis);
209 #if defined(CONFIG_IXP4XX_NPE)
213 e1000_initialize(bis);
215 #ifdef CONFIG_EEPRO100
216 eepro100_initialize(bis);
219 dc21x4x_initialize(bis);
222 puts ("No ethernet found.\n");
223 show_boot_progress (-64);
225 struct eth_device *dev = eth_devices;
226 char *ethprime = getenv ("ethprime");
228 show_boot_progress (65);
233 printf("%s", dev->name);
235 if (ethprime && strcmp (dev->name, ethprime) == 0) {
240 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
241 tmp = getenv (enetvar);
243 for (i=0; i<6; i++) {
244 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
246 tmp = (*end) ? end+1 : end;
249 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
250 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
251 memcmp(dev->enetaddr, env_enetaddr, 6))
253 printf ("\nWarning: %s MAC addresses don't match:\n",
255 printf ("Address in SROM is "
256 "%02X:%02X:%02X:%02X:%02X:%02X\n",
257 dev->enetaddr[0], dev->enetaddr[1],
258 dev->enetaddr[2], dev->enetaddr[3],
259 dev->enetaddr[4], dev->enetaddr[5]);
260 printf ("Address in environment is "
261 "%02X:%02X:%02X:%02X:%02X:%02X\n",
262 env_enetaddr[0], env_enetaddr[1],
263 env_enetaddr[2], env_enetaddr[3],
264 env_enetaddr[4], env_enetaddr[5]);
267 memcpy(dev->enetaddr, env_enetaddr, 6);
272 } while(dev != eth_devices);
274 #ifdef CONFIG_NET_MULTI
275 /* update current ethernet name */
277 char *act = getenv("ethact");
278 if (act == NULL || strcmp(act, eth_current->name) != 0)
279 setenv("ethact", eth_current->name);
281 setenv("ethact", NULL);
290 void eth_set_enetaddr(int num, char *addr) {
291 struct eth_device *dev;
292 unsigned char enetaddr[6];
296 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
301 for (i=0; i<6; i++) {
302 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
304 addr = (*end) ? end+1 : end;
311 if (dev == eth_devices)
315 debug ( "Setting new HW address on %s\n"
316 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
318 enetaddr[0], enetaddr[1],
319 enetaddr[2], enetaddr[3],
320 enetaddr[4], enetaddr[5]);
322 memcpy(dev->enetaddr, enetaddr, 6);
324 #ifdef CONFIG_MCAST_TFTP
326 * mcast_addr: multicast ipaddr from which multicast Mac is made
327 * join: 1=join, 0=leave.
329 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
332 if (!eth_current || !eth_current->mcast)
334 mcast_mac[5] = htonl(mcast_ip) & 0xff;
335 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
336 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
340 return eth_current->mcast(eth_current, mcast_mac, join);
343 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
344 * and this is the ethernet-crc method needed for TSEC -- and perhaps
345 * some other adapter -- hash tables
347 #define CRCPOLY_LE 0xedb88320
348 u32 ether_crc (size_t len, unsigned char const *p)
355 for (i = 0; i < 8; i++)
356 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
358 /* an reverse the bits, cuz of way they arrive -- last-first */
359 crc = (crc >> 16) | (crc << 16);
360 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
361 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
362 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
363 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
370 int eth_init(bd_t *bis)
372 struct eth_device* old_current;
375 puts ("No ethernet found.\n");
379 old_current = eth_current;
381 debug ("Trying %s\n", eth_current->name);
383 if (eth_current->init(eth_current,bis) >= 0) {
384 eth_current->state = ETH_STATE_ACTIVE;
391 } while (old_current != eth_current);
401 eth_current->halt(eth_current);
403 eth_current->state = ETH_STATE_PASSIVE;
406 int eth_send(volatile void *packet, int length)
411 return eth_current->send(eth_current, packet, length);
419 return eth_current->recv(eth_current);
423 static void eth_save_packet(volatile void *packet, int length)
425 volatile char *p = packet;
428 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
431 if (PKTSIZE < length)
434 for (i = 0; i < length; i++)
435 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
437 eth_rcv_bufs[eth_rcv_last].length = length;
438 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
441 int eth_receive(volatile void *packet, int length)
443 volatile char *p = packet;
444 void *pp = push_packet;
447 if (eth_rcv_current == eth_rcv_last) {
448 push_packet = eth_save_packet;
452 if (eth_rcv_current == eth_rcv_last)
456 if (length < eth_rcv_bufs[eth_rcv_current].length)
459 length = eth_rcv_bufs[eth_rcv_current].length;
461 for (i = 0; i < length; i++)
462 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
464 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
467 #endif /* CONFIG_API */
469 void eth_try_another(int first_restart)
471 static struct eth_device *first_failed = NULL;
475 * Do not rotate between network interfaces when
476 * 'ethrotate' variable is set to 'no'.
478 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
479 (strcmp(ethrotate, "no") == 0))
486 first_failed = eth_current;
489 eth_current = eth_current->next;
491 #ifdef CONFIG_NET_MULTI
492 /* update current ethernet name */
494 char *act = getenv("ethact");
495 if (act == NULL || strcmp(act, eth_current->name) != 0)
496 setenv("ethact", eth_current->name);
500 if (first_failed == eth_current) {
505 #ifdef CONFIG_NET_MULTI
506 void eth_set_current(void)
509 struct eth_device* old_current;
511 if (!eth_current) /* XXX no current */
514 act = getenv("ethact");
516 old_current = eth_current;
518 if (strcmp(eth_current->name, act) == 0)
520 eth_current = eth_current->next;
521 } while (old_current != eth_current);
524 setenv("ethact", eth_current->name);
528 char *eth_get_name (void)
530 return (eth_current ? eth_current->name : "unknown");
532 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
534 extern int at91rm9200_miiphy_initialize(bd_t *bis);
535 extern int emac4xx_miiphy_initialize(bd_t *bis);
536 extern int mcf52x2_miiphy_initialize(bd_t *bis);
537 extern int ns7520_miiphy_initialize(bd_t *bis);
538 extern int davinci_eth_miiphy_initialize(bd_t *bis);
541 int eth_initialize(bd_t *bis)
543 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
547 #if defined(CONFIG_AT91RM9200)
548 at91rm9200_miiphy_initialize(bis);
550 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
551 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
552 emac4xx_miiphy_initialize(bis);
554 #if defined(CONFIG_MCF52x2)
555 mcf52x2_miiphy_initialize(bis);
557 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
558 ns7520_miiphy_initialize(bis);
560 #if defined(CONFIG_DRIVER_TI_EMAC)
561 davinci_eth_miiphy_initialize(bis);