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 tsi108_eth_initialize(bd_t*);
65 extern int npe_initialize(bd_t *);
66 extern int uec_initialize(int);
69 extern void (*push_packet)(volatile void *, int);
74 } eth_rcv_bufs[PKTBUFSRX];
76 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
79 static struct eth_device *eth_devices, *eth_current;
81 struct eth_device *eth_get_dev(void)
86 struct eth_device *eth_get_dev_by_name(char *devname)
88 struct eth_device *dev, *target_dev;
96 if (strcmp(devname, dev->name) == 0) {
101 } while (dev != eth_devices);
106 int eth_get_dev_index (void)
108 struct eth_device *dev;
115 for (dev = eth_devices; dev; dev = dev->next) {
116 if (dev == eth_current)
128 int eth_register(struct eth_device* dev)
130 struct eth_device *d;
133 eth_current = eth_devices = dev;
134 #ifdef CONFIG_NET_MULTI
135 /* update current ethernet name */
137 char *act = getenv("ethact");
138 if (act == NULL || strcmp(act, eth_current->name) != 0)
139 setenv("ethact", eth_current->name);
143 for (d=eth_devices; d->next!=eth_devices; d=d->next);
147 dev->state = ETH_STATE_INIT;
148 dev->next = eth_devices;
153 int eth_initialize(bd_t *bis)
156 unsigned char env_enetaddr[6];
157 int i, eth_number = 0;
163 show_boot_progress (64);
164 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
167 /* Try board-specific initialization first. If it fails or isn't
168 * present, try the cpu-specific initialization */
169 if (board_eth_init(bis) < 0)
172 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
173 mv6436x_eth_initialize(bis);
175 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
176 mv6446x_eth_initialize(bis);
178 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
179 ppc_4xx_eth_initialize(bis);
181 #ifdef CONFIG_INCA_IP_SWITCH
182 inca_switch_initialize(bis);
184 #ifdef CONFIG_PLB2800_ETHER
185 plb2800_eth_initialize(bis);
190 #if defined(CONFIG_MPC5xxx_FEC)
191 mpc5xxx_fec_initialize(bis);
193 #if defined(CONFIG_MPC512x_FEC)
194 mpc512x_fec_initialize (bis);
196 #if defined(CONFIG_MPC8220_FEC)
197 mpc8220_fec_initialize(bis);
199 #if defined(CONFIG_UEC_ETH1)
202 #if defined(CONFIG_UEC_ETH2)
205 #if defined(CONFIG_UEC_ETH3)
208 #if defined(CONFIG_UEC_ETH4)
212 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
215 #if defined(CONFIG_AU1X00)
216 au1x00_enet_initialize(bis);
218 #if defined(CONFIG_IXP4XX_NPE)
222 e1000_initialize(bis);
224 #ifdef CONFIG_EEPRO100
225 eepro100_initialize(bis);
228 dc21x4x_initialize(bis);
231 eth_3com_initialize(bis);
234 pcnet_initialize(bis);
237 gt6426x_eth_initialize(bis);
239 #ifdef CONFIG_NATSEMI
240 natsemi_initialize(bis);
242 #ifdef CONFIG_NS8382X
243 ns8382x_initialize(bis);
245 #if defined(CONFIG_TSI108_ETH)
246 tsi108_eth_initialize(bis);
249 puts ("No ethernet found.\n");
250 show_boot_progress (-64);
252 struct eth_device *dev = eth_devices;
253 char *ethprime = getenv ("ethprime");
255 show_boot_progress (65);
260 printf("%s", dev->name);
262 if (ethprime && strcmp (dev->name, ethprime) == 0) {
267 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
268 tmp = getenv (enetvar);
270 for (i=0; i<6; i++) {
271 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
273 tmp = (*end) ? end+1 : end;
276 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
277 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
278 memcmp(dev->enetaddr, env_enetaddr, 6))
280 printf ("\nWarning: %s MAC addresses don't match:\n",
282 printf ("Address in SROM is "
283 "%02X:%02X:%02X:%02X:%02X:%02X\n",
284 dev->enetaddr[0], dev->enetaddr[1],
285 dev->enetaddr[2], dev->enetaddr[3],
286 dev->enetaddr[4], dev->enetaddr[5]);
287 printf ("Address in environment is "
288 "%02X:%02X:%02X:%02X:%02X:%02X\n",
289 env_enetaddr[0], env_enetaddr[1],
290 env_enetaddr[2], env_enetaddr[3],
291 env_enetaddr[4], env_enetaddr[5]);
294 memcpy(dev->enetaddr, env_enetaddr, 6);
299 } while(dev != eth_devices);
301 #ifdef CONFIG_NET_MULTI
302 /* update current ethernet name */
304 char *act = getenv("ethact");
305 if (act == NULL || strcmp(act, eth_current->name) != 0)
306 setenv("ethact", eth_current->name);
308 setenv("ethact", NULL);
317 void eth_set_enetaddr(int num, char *addr) {
318 struct eth_device *dev;
319 unsigned char enetaddr[6];
323 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
328 for (i=0; i<6; i++) {
329 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
331 addr = (*end) ? end+1 : end;
338 if (dev == eth_devices)
342 debug ( "Setting new HW address on %s\n"
343 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
345 enetaddr[0], enetaddr[1],
346 enetaddr[2], enetaddr[3],
347 enetaddr[4], enetaddr[5]);
349 memcpy(dev->enetaddr, enetaddr, 6);
351 #ifdef CONFIG_MCAST_TFTP
353 * mcast_addr: multicast ipaddr from which multicast Mac is made
354 * join: 1=join, 0=leave.
356 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
359 if (!eth_current || !eth_current->mcast)
361 mcast_mac[5] = htonl(mcast_ip) & 0xff;
362 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
363 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
367 return eth_current->mcast(eth_current, mcast_mac, join);
370 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
371 * and this is the ethernet-crc method needed for TSEC -- and perhaps
372 * some other adapter -- hash tables
374 #define CRCPOLY_LE 0xedb88320
375 u32 ether_crc (size_t len, unsigned char const *p)
382 for (i = 0; i < 8; i++)
383 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
385 /* an reverse the bits, cuz of way they arrive -- last-first */
386 crc = (crc >> 16) | (crc << 16);
387 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
388 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
389 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
390 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
397 int eth_init(bd_t *bis)
399 struct eth_device* old_current;
402 puts ("No ethernet found.\n");
406 old_current = eth_current;
408 debug ("Trying %s\n", eth_current->name);
410 if (eth_current->init(eth_current,bis) >= 0) {
411 eth_current->state = ETH_STATE_ACTIVE;
418 } while (old_current != eth_current);
428 eth_current->halt(eth_current);
430 eth_current->state = ETH_STATE_PASSIVE;
433 int eth_send(volatile void *packet, int length)
438 return eth_current->send(eth_current, packet, length);
446 return eth_current->recv(eth_current);
450 static void eth_save_packet(volatile void *packet, int length)
452 volatile char *p = packet;
455 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
458 if (PKTSIZE < length)
461 for (i = 0; i < length; i++)
462 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
464 eth_rcv_bufs[eth_rcv_last].length = length;
465 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
468 int eth_receive(volatile void *packet, int length)
470 volatile char *p = packet;
471 void *pp = push_packet;
474 if (eth_rcv_current == eth_rcv_last) {
475 push_packet = eth_save_packet;
479 if (eth_rcv_current == eth_rcv_last)
483 if (length < eth_rcv_bufs[eth_rcv_current].length)
486 length = eth_rcv_bufs[eth_rcv_current].length;
488 for (i = 0; i < length; i++)
489 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
491 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
494 #endif /* CONFIG_API */
496 void eth_try_another(int first_restart)
498 static struct eth_device *first_failed = NULL;
502 * Do not rotate between network interfaces when
503 * 'ethrotate' variable is set to 'no'.
505 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
506 (strcmp(ethrotate, "no") == 0))
513 first_failed = eth_current;
516 eth_current = eth_current->next;
518 #ifdef CONFIG_NET_MULTI
519 /* update current ethernet name */
521 char *act = getenv("ethact");
522 if (act == NULL || strcmp(act, eth_current->name) != 0)
523 setenv("ethact", eth_current->name);
527 if (first_failed == eth_current) {
532 #ifdef CONFIG_NET_MULTI
533 void eth_set_current(void)
536 struct eth_device* old_current;
538 if (!eth_current) /* XXX no current */
541 act = getenv("ethact");
543 old_current = eth_current;
545 if (strcmp(eth_current->name, act) == 0)
547 eth_current = eth_current->next;
548 } while (old_current != eth_current);
551 setenv("ethact", eth_current->name);
555 char *eth_get_name (void)
557 return (eth_current ? eth_current->name : "unknown");
559 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
561 extern int at91rm9200_miiphy_initialize(bd_t *bis);
562 extern int emac4xx_miiphy_initialize(bd_t *bis);
563 extern int mcf52x2_miiphy_initialize(bd_t *bis);
564 extern int ns7520_miiphy_initialize(bd_t *bis);
565 extern int davinci_eth_miiphy_initialize(bd_t *bis);
568 int eth_initialize(bd_t *bis)
570 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
574 #if defined(CONFIG_AT91RM9200)
575 at91rm9200_miiphy_initialize(bis);
577 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
578 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
579 emac4xx_miiphy_initialize(bis);
581 #if defined(CONFIG_MCF52x2)
582 mcf52x2_miiphy_initialize(bis);
584 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
585 ns7520_miiphy_initialize(bis);
587 #if defined(CONFIG_DRIVER_TI_EMAC)
588 davinci_eth_miiphy_initialize(bis);