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")));
43 extern int gt6426x_eth_initialize(bd_t *bis);
46 extern int au1x00_enet_initialize(bd_t*);
47 extern int dc21x4x_initialize(bd_t*);
48 extern int e1000_initialize(bd_t*);
49 extern int eepro100_initialize(bd_t*);
50 extern int eth_3com_initialize(bd_t*);
51 extern int fec_initialize(bd_t*);
52 extern int inca_switch_initialize(bd_t*);
53 extern int mpc5xxx_fec_initialize(bd_t*);
54 extern int mpc512x_fec_initialize(bd_t*);
55 extern int mpc8220_fec_initialize(bd_t*);
56 extern int mv6436x_eth_initialize(bd_t *);
57 extern int mv6446x_eth_initialize(bd_t *);
58 extern int natsemi_initialize(bd_t*);
59 extern int ns8382x_initialize(bd_t*);
60 extern int pcnet_initialize(bd_t*);
61 extern int plb2800_eth_initialize(bd_t*);
62 extern int ppc_4xx_eth_initialize(bd_t *);
63 extern int scc_initialize(bd_t*);
64 extern int npe_initialize(bd_t *);
65 extern int uec_initialize(int);
68 extern void (*push_packet)(volatile void *, int);
73 } eth_rcv_bufs[PKTBUFSRX];
75 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
78 static struct eth_device *eth_devices, *eth_current;
80 struct eth_device *eth_get_dev(void)
85 struct eth_device *eth_get_dev_by_name(char *devname)
87 struct eth_device *dev, *target_dev;
95 if (strcmp(devname, dev->name) == 0) {
100 } while (dev != eth_devices);
105 int eth_get_dev_index (void)
107 struct eth_device *dev;
114 for (dev = eth_devices; dev; dev = dev->next) {
115 if (dev == eth_current)
127 int eth_register(struct eth_device* dev)
129 struct eth_device *d;
132 eth_current = eth_devices = dev;
133 #ifdef CONFIG_NET_MULTI
134 /* update current ethernet name */
136 char *act = getenv("ethact");
137 if (act == NULL || strcmp(act, eth_current->name) != 0)
138 setenv("ethact", eth_current->name);
142 for (d=eth_devices; d->next!=eth_devices; d=d->next);
146 dev->state = ETH_STATE_INIT;
147 dev->next = eth_devices;
152 int eth_initialize(bd_t *bis)
155 unsigned char env_enetaddr[6];
156 int i, eth_number = 0;
162 show_boot_progress (64);
163 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
166 /* Try board-specific initialization first. If it fails or isn't
167 * present, try the cpu-specific initialization */
168 if (board_eth_init(bis) < 0)
171 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
172 mv6436x_eth_initialize(bis);
174 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
175 mv6446x_eth_initialize(bis);
177 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
178 ppc_4xx_eth_initialize(bis);
180 #ifdef CONFIG_INCA_IP_SWITCH
181 inca_switch_initialize(bis);
183 #ifdef CONFIG_PLB2800_ETHER
184 plb2800_eth_initialize(bis);
189 #if defined(CONFIG_MPC5xxx_FEC)
190 mpc5xxx_fec_initialize(bis);
192 #if defined(CONFIG_MPC512x_FEC)
193 mpc512x_fec_initialize (bis);
195 #if defined(CONFIG_MPC8220_FEC)
196 mpc8220_fec_initialize(bis);
198 #if defined(CONFIG_UEC_ETH1)
201 #if defined(CONFIG_UEC_ETH2)
204 #if defined(CONFIG_UEC_ETH3)
207 #if defined(CONFIG_UEC_ETH4)
211 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
214 #if defined(CONFIG_AU1X00)
215 au1x00_enet_initialize(bis);
217 #if defined(CONFIG_IXP4XX_NPE)
221 e1000_initialize(bis);
223 #ifdef CONFIG_EEPRO100
224 eepro100_initialize(bis);
227 dc21x4x_initialize(bis);
230 eth_3com_initialize(bis);
233 pcnet_initialize(bis);
236 gt6426x_eth_initialize(bis);
238 #ifdef CONFIG_NATSEMI
239 natsemi_initialize(bis);
241 #ifdef CONFIG_NS8382X
242 ns8382x_initialize(bis);
245 puts ("No ethernet found.\n");
246 show_boot_progress (-64);
248 struct eth_device *dev = eth_devices;
249 char *ethprime = getenv ("ethprime");
251 show_boot_progress (65);
256 printf("%s", dev->name);
258 if (ethprime && strcmp (dev->name, ethprime) == 0) {
263 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
264 tmp = getenv (enetvar);
266 for (i=0; i<6; i++) {
267 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
269 tmp = (*end) ? end+1 : end;
272 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
273 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
274 memcmp(dev->enetaddr, env_enetaddr, 6))
276 printf ("\nWarning: %s MAC addresses don't match:\n",
278 printf ("Address in SROM is "
279 "%02X:%02X:%02X:%02X:%02X:%02X\n",
280 dev->enetaddr[0], dev->enetaddr[1],
281 dev->enetaddr[2], dev->enetaddr[3],
282 dev->enetaddr[4], dev->enetaddr[5]);
283 printf ("Address in environment is "
284 "%02X:%02X:%02X:%02X:%02X:%02X\n",
285 env_enetaddr[0], env_enetaddr[1],
286 env_enetaddr[2], env_enetaddr[3],
287 env_enetaddr[4], env_enetaddr[5]);
290 memcpy(dev->enetaddr, env_enetaddr, 6);
295 } while(dev != eth_devices);
297 #ifdef CONFIG_NET_MULTI
298 /* update current ethernet name */
300 char *act = getenv("ethact");
301 if (act == NULL || strcmp(act, eth_current->name) != 0)
302 setenv("ethact", eth_current->name);
304 setenv("ethact", NULL);
313 void eth_set_enetaddr(int num, char *addr) {
314 struct eth_device *dev;
315 unsigned char enetaddr[6];
319 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
324 for (i=0; i<6; i++) {
325 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
327 addr = (*end) ? end+1 : end;
334 if (dev == eth_devices)
338 debug ( "Setting new HW address on %s\n"
339 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
341 enetaddr[0], enetaddr[1],
342 enetaddr[2], enetaddr[3],
343 enetaddr[4], enetaddr[5]);
345 memcpy(dev->enetaddr, enetaddr, 6);
347 #ifdef CONFIG_MCAST_TFTP
349 * mcast_addr: multicast ipaddr from which multicast Mac is made
350 * join: 1=join, 0=leave.
352 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
355 if (!eth_current || !eth_current->mcast)
357 mcast_mac[5] = htonl(mcast_ip) & 0xff;
358 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
359 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
363 return eth_current->mcast(eth_current, mcast_mac, join);
366 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
367 * and this is the ethernet-crc method needed for TSEC -- and perhaps
368 * some other adapter -- hash tables
370 #define CRCPOLY_LE 0xedb88320
371 u32 ether_crc (size_t len, unsigned char const *p)
378 for (i = 0; i < 8; i++)
379 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
381 /* an reverse the bits, cuz of way they arrive -- last-first */
382 crc = (crc >> 16) | (crc << 16);
383 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
384 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
385 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
386 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
393 int eth_init(bd_t *bis)
395 struct eth_device* old_current;
398 puts ("No ethernet found.\n");
402 old_current = eth_current;
404 debug ("Trying %s\n", eth_current->name);
406 if (eth_current->init(eth_current,bis) >= 0) {
407 eth_current->state = ETH_STATE_ACTIVE;
414 } while (old_current != eth_current);
424 eth_current->halt(eth_current);
426 eth_current->state = ETH_STATE_PASSIVE;
429 int eth_send(volatile void *packet, int length)
434 return eth_current->send(eth_current, packet, length);
442 return eth_current->recv(eth_current);
446 static void eth_save_packet(volatile void *packet, int length)
448 volatile char *p = packet;
451 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
454 if (PKTSIZE < length)
457 for (i = 0; i < length; i++)
458 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
460 eth_rcv_bufs[eth_rcv_last].length = length;
461 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
464 int eth_receive(volatile void *packet, int length)
466 volatile char *p = packet;
467 void *pp = push_packet;
470 if (eth_rcv_current == eth_rcv_last) {
471 push_packet = eth_save_packet;
475 if (eth_rcv_current == eth_rcv_last)
479 if (length < eth_rcv_bufs[eth_rcv_current].length)
482 length = eth_rcv_bufs[eth_rcv_current].length;
484 for (i = 0; i < length; i++)
485 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
487 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
490 #endif /* CONFIG_API */
492 void eth_try_another(int first_restart)
494 static struct eth_device *first_failed = NULL;
498 * Do not rotate between network interfaces when
499 * 'ethrotate' variable is set to 'no'.
501 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
502 (strcmp(ethrotate, "no") == 0))
509 first_failed = eth_current;
512 eth_current = eth_current->next;
514 #ifdef CONFIG_NET_MULTI
515 /* update current ethernet name */
517 char *act = getenv("ethact");
518 if (act == NULL || strcmp(act, eth_current->name) != 0)
519 setenv("ethact", eth_current->name);
523 if (first_failed == eth_current) {
528 #ifdef CONFIG_NET_MULTI
529 void eth_set_current(void)
532 struct eth_device* old_current;
534 if (!eth_current) /* XXX no current */
537 act = getenv("ethact");
539 old_current = eth_current;
541 if (strcmp(eth_current->name, act) == 0)
543 eth_current = eth_current->next;
544 } while (old_current != eth_current);
547 setenv("ethact", eth_current->name);
551 char *eth_get_name (void)
553 return (eth_current ? eth_current->name : "unknown");
555 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
557 extern int at91rm9200_miiphy_initialize(bd_t *bis);
558 extern int emac4xx_miiphy_initialize(bd_t *bis);
559 extern int mcf52x2_miiphy_initialize(bd_t *bis);
560 extern int ns7520_miiphy_initialize(bd_t *bis);
561 extern int davinci_eth_miiphy_initialize(bd_t *bis);
564 int eth_initialize(bd_t *bis)
566 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
570 #if defined(CONFIG_AT91RM9200)
571 at91rm9200_miiphy_initialize(bis);
573 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
574 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
575 emac4xx_miiphy_initialize(bis);
577 #if defined(CONFIG_MCF52x2)
578 mcf52x2_miiphy_initialize(bis);
580 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
581 ns7520_miiphy_initialize(bis);
583 #if defined(CONFIG_DRIVER_TI_EMAC)
584 davinci_eth_miiphy_initialize(bis);