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 rtl8139_initialize(bd_t*);
64 extern int rtl8169_initialize(bd_t*);
65 extern int scc_initialize(bd_t*);
66 extern int tsi108_eth_initialize(bd_t*);
67 extern int npe_initialize(bd_t *);
68 extern int uec_initialize(int);
71 extern void (*push_packet)(volatile void *, int);
76 } eth_rcv_bufs[PKTBUFSRX];
78 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
81 static struct eth_device *eth_devices, *eth_current;
83 struct eth_device *eth_get_dev(void)
88 struct eth_device *eth_get_dev_by_name(char *devname)
90 struct eth_device *dev, *target_dev;
98 if (strcmp(devname, dev->name) == 0) {
103 } while (dev != eth_devices);
108 int eth_get_dev_index (void)
110 struct eth_device *dev;
117 for (dev = eth_devices; dev; dev = dev->next) {
118 if (dev == eth_current)
130 int eth_register(struct eth_device* dev)
132 struct eth_device *d;
135 eth_current = eth_devices = dev;
136 #ifdef CONFIG_NET_MULTI
137 /* update current ethernet name */
139 char *act = getenv("ethact");
140 if (act == NULL || strcmp(act, eth_current->name) != 0)
141 setenv("ethact", eth_current->name);
145 for (d=eth_devices; d->next!=eth_devices; d=d->next);
149 dev->state = ETH_STATE_INIT;
150 dev->next = eth_devices;
155 int eth_initialize(bd_t *bis)
158 unsigned char env_enetaddr[6];
159 int i, eth_number = 0;
165 show_boot_progress (64);
166 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
169 /* Try board-specific initialization first. If it fails or isn't
170 * present, try the cpu-specific initialization */
171 if (board_eth_init(bis) < 0)
174 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
175 mv6436x_eth_initialize(bis);
177 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
178 mv6446x_eth_initialize(bis);
180 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
181 ppc_4xx_eth_initialize(bis);
183 #ifdef CONFIG_INCA_IP_SWITCH
184 inca_switch_initialize(bis);
186 #ifdef CONFIG_PLB2800_ETHER
187 plb2800_eth_initialize(bis);
192 #if defined(CONFIG_MPC5xxx_FEC)
193 mpc5xxx_fec_initialize(bis);
195 #if defined(CONFIG_MPC512x_FEC)
196 mpc512x_fec_initialize (bis);
198 #if defined(CONFIG_MPC8220_FEC)
199 mpc8220_fec_initialize(bis);
201 #if defined(CONFIG_UEC_ETH1)
204 #if defined(CONFIG_UEC_ETH2)
207 #if defined(CONFIG_UEC_ETH3)
210 #if defined(CONFIG_UEC_ETH4)
214 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
217 #if defined(CONFIG_AU1X00)
218 au1x00_enet_initialize(bis);
220 #if defined(CONFIG_IXP4XX_NPE)
224 e1000_initialize(bis);
226 #ifdef CONFIG_EEPRO100
227 eepro100_initialize(bis);
230 dc21x4x_initialize(bis);
233 eth_3com_initialize(bis);
236 pcnet_initialize(bis);
239 gt6426x_eth_initialize(bis);
241 #ifdef CONFIG_NATSEMI
242 natsemi_initialize(bis);
244 #ifdef CONFIG_NS8382X
245 ns8382x_initialize(bis);
247 #if defined(CONFIG_TSI108_ETH)
248 tsi108_eth_initialize(bis);
250 #if defined(CONFIG_RTL8139)
251 rtl8139_initialize(bis);
253 #if defined(CONFIG_RTL8169)
254 rtl8169_initialize(bis);
258 puts ("No ethernet found.\n");
259 show_boot_progress (-64);
261 struct eth_device *dev = eth_devices;
262 char *ethprime = getenv ("ethprime");
264 show_boot_progress (65);
269 printf("%s", dev->name);
271 if (ethprime && strcmp (dev->name, ethprime) == 0) {
276 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
277 tmp = getenv (enetvar);
279 for (i=0; i<6; i++) {
280 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
282 tmp = (*end) ? end+1 : end;
285 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
286 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
287 memcmp(dev->enetaddr, env_enetaddr, 6))
289 printf ("\nWarning: %s MAC addresses don't match:\n",
291 printf ("Address in SROM is "
292 "%02X:%02X:%02X:%02X:%02X:%02X\n",
293 dev->enetaddr[0], dev->enetaddr[1],
294 dev->enetaddr[2], dev->enetaddr[3],
295 dev->enetaddr[4], dev->enetaddr[5]);
296 printf ("Address in environment is "
297 "%02X:%02X:%02X:%02X:%02X:%02X\n",
298 env_enetaddr[0], env_enetaddr[1],
299 env_enetaddr[2], env_enetaddr[3],
300 env_enetaddr[4], env_enetaddr[5]);
303 memcpy(dev->enetaddr, env_enetaddr, 6);
308 } while(dev != eth_devices);
310 #ifdef CONFIG_NET_MULTI
311 /* update current ethernet name */
313 char *act = getenv("ethact");
314 if (act == NULL || strcmp(act, eth_current->name) != 0)
315 setenv("ethact", eth_current->name);
317 setenv("ethact", NULL);
326 void eth_set_enetaddr(int num, char *addr) {
327 struct eth_device *dev;
328 unsigned char enetaddr[6];
332 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
337 for (i=0; i<6; i++) {
338 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
340 addr = (*end) ? end+1 : end;
347 if (dev == eth_devices)
351 debug ( "Setting new HW address on %s\n"
352 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
354 enetaddr[0], enetaddr[1],
355 enetaddr[2], enetaddr[3],
356 enetaddr[4], enetaddr[5]);
358 memcpy(dev->enetaddr, enetaddr, 6);
360 #ifdef CONFIG_MCAST_TFTP
362 * mcast_addr: multicast ipaddr from which multicast Mac is made
363 * join: 1=join, 0=leave.
365 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
368 if (!eth_current || !eth_current->mcast)
370 mcast_mac[5] = htonl(mcast_ip) & 0xff;
371 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
372 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
376 return eth_current->mcast(eth_current, mcast_mac, join);
379 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
380 * and this is the ethernet-crc method needed for TSEC -- and perhaps
381 * some other adapter -- hash tables
383 #define CRCPOLY_LE 0xedb88320
384 u32 ether_crc (size_t len, unsigned char const *p)
391 for (i = 0; i < 8; i++)
392 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
394 /* an reverse the bits, cuz of way they arrive -- last-first */
395 crc = (crc >> 16) | (crc << 16);
396 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
397 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
398 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
399 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
406 int eth_init(bd_t *bis)
408 struct eth_device* old_current;
411 puts ("No ethernet found.\n");
415 old_current = eth_current;
417 debug ("Trying %s\n", eth_current->name);
419 if (eth_current->init(eth_current,bis) >= 0) {
420 eth_current->state = ETH_STATE_ACTIVE;
427 } while (old_current != eth_current);
437 eth_current->halt(eth_current);
439 eth_current->state = ETH_STATE_PASSIVE;
442 int eth_send(volatile void *packet, int length)
447 return eth_current->send(eth_current, packet, length);
455 return eth_current->recv(eth_current);
459 static void eth_save_packet(volatile void *packet, int length)
461 volatile char *p = packet;
464 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
467 if (PKTSIZE < length)
470 for (i = 0; i < length; i++)
471 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
473 eth_rcv_bufs[eth_rcv_last].length = length;
474 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
477 int eth_receive(volatile void *packet, int length)
479 volatile char *p = packet;
480 void *pp = push_packet;
483 if (eth_rcv_current == eth_rcv_last) {
484 push_packet = eth_save_packet;
488 if (eth_rcv_current == eth_rcv_last)
492 if (length < eth_rcv_bufs[eth_rcv_current].length)
495 length = eth_rcv_bufs[eth_rcv_current].length;
497 for (i = 0; i < length; i++)
498 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
500 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
503 #endif /* CONFIG_API */
505 void eth_try_another(int first_restart)
507 static struct eth_device *first_failed = NULL;
511 * Do not rotate between network interfaces when
512 * 'ethrotate' variable is set to 'no'.
514 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
515 (strcmp(ethrotate, "no") == 0))
522 first_failed = eth_current;
525 eth_current = eth_current->next;
527 #ifdef CONFIG_NET_MULTI
528 /* update current ethernet name */
530 char *act = getenv("ethact");
531 if (act == NULL || strcmp(act, eth_current->name) != 0)
532 setenv("ethact", eth_current->name);
536 if (first_failed == eth_current) {
541 #ifdef CONFIG_NET_MULTI
542 void eth_set_current(void)
545 struct eth_device* old_current;
547 if (!eth_current) /* XXX no current */
550 act = getenv("ethact");
552 old_current = eth_current;
554 if (strcmp(eth_current->name, act) == 0)
556 eth_current = eth_current->next;
557 } while (old_current != eth_current);
560 setenv("ethact", eth_current->name);
564 char *eth_get_name (void)
566 return (eth_current ? eth_current->name : "unknown");
568 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
570 extern int at91rm9200_miiphy_initialize(bd_t *bis);
571 extern int emac4xx_miiphy_initialize(bd_t *bis);
572 extern int mcf52x2_miiphy_initialize(bd_t *bis);
573 extern int ns7520_miiphy_initialize(bd_t *bis);
574 extern int davinci_eth_miiphy_initialize(bd_t *bis);
577 int eth_initialize(bd_t *bis)
579 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
583 #if defined(CONFIG_AT91RM9200)
584 at91rm9200_miiphy_initialize(bis);
586 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
587 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
588 emac4xx_miiphy_initialize(bis);
590 #if defined(CONFIG_MCF52x2)
591 mcf52x2_miiphy_initialize(bis);
593 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
594 ns7520_miiphy_initialize(bis);
596 #if defined(CONFIG_DRIVER_TI_EMAC)
597 davinci_eth_miiphy_initialize(bis);