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")));
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 mpc512x_fec_initialize(bd_t*);
49 extern int mpc8220_fec_initialize(bd_t*);
50 extern int mv6436x_eth_initialize(bd_t *);
51 extern int mv6446x_eth_initialize(bd_t *);
52 extern int plb2800_eth_initialize(bd_t*);
53 extern int ppc_4xx_eth_initialize(bd_t *);
54 extern int scc_initialize(bd_t*);
55 extern int npe_initialize(bd_t *);
56 extern int uec_initialize(int);
59 extern void (*push_packet)(volatile void *, int);
64 } eth_rcv_bufs[PKTBUFSRX];
66 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
69 static struct eth_device *eth_devices, *eth_current;
71 struct eth_device *eth_get_dev(void)
76 struct eth_device *eth_get_dev_by_name(char *devname)
78 struct eth_device *dev, *target_dev;
86 if (strcmp(devname, dev->name) == 0) {
91 } while (dev != eth_devices);
96 int eth_get_dev_index (void)
98 struct eth_device *dev;
105 for (dev = eth_devices; dev; dev = dev->next) {
106 if (dev == eth_current)
118 int eth_register(struct eth_device* dev)
120 struct eth_device *d;
123 eth_current = eth_devices = dev;
124 #ifdef CONFIG_NET_MULTI
125 /* update current ethernet name */
127 char *act = getenv("ethact");
128 if (act == NULL || strcmp(act, eth_current->name) != 0)
129 setenv("ethact", eth_current->name);
133 for (d=eth_devices; d->next!=eth_devices; d=d->next);
137 dev->state = ETH_STATE_INIT;
138 dev->next = eth_devices;
143 int eth_initialize(bd_t *bis)
146 unsigned char env_enetaddr[6];
147 int i, eth_number = 0;
153 show_boot_progress (64);
154 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
157 /* Try board-specific initialization first. If it fails or isn't
158 * present, try the cpu-specific initialization */
159 if (board_eth_init(bis) < 0)
162 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
163 mv6436x_eth_initialize(bis);
165 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
166 mv6446x_eth_initialize(bis);
168 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
169 ppc_4xx_eth_initialize(bis);
171 #ifdef CONFIG_PLB2800_ETHER
172 plb2800_eth_initialize(bis);
177 #if defined(CONFIG_MPC5xxx_FEC)
178 mpc5xxx_fec_initialize(bis);
180 #if defined(CONFIG_MPC512x_FEC)
181 mpc512x_fec_initialize (bis);
183 #if defined(CONFIG_MPC8220_FEC)
184 mpc8220_fec_initialize(bis);
186 #if defined(CONFIG_UEC_ETH1)
189 #if defined(CONFIG_UEC_ETH2)
192 #if defined(CONFIG_UEC_ETH3)
195 #if defined(CONFIG_UEC_ETH4)
199 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
202 #if defined(CONFIG_AU1X00)
203 au1x00_enet_initialize(bis);
205 #if defined(CONFIG_IXP4XX_NPE)
209 e1000_initialize(bis);
211 #ifdef CONFIG_EEPRO100
212 eepro100_initialize(bis);
215 dc21x4x_initialize(bis);
218 puts ("No ethernet found.\n");
219 show_boot_progress (-64);
221 struct eth_device *dev = eth_devices;
222 char *ethprime = getenv ("ethprime");
224 show_boot_progress (65);
229 printf("%s", dev->name);
231 if (ethprime && strcmp (dev->name, ethprime) == 0) {
236 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
237 tmp = getenv (enetvar);
239 for (i=0; i<6; i++) {
240 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
242 tmp = (*end) ? end+1 : end;
245 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
246 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
247 memcmp(dev->enetaddr, env_enetaddr, 6))
249 printf ("\nWarning: %s MAC addresses don't match:\n",
251 printf ("Address in SROM is "
252 "%02X:%02X:%02X:%02X:%02X:%02X\n",
253 dev->enetaddr[0], dev->enetaddr[1],
254 dev->enetaddr[2], dev->enetaddr[3],
255 dev->enetaddr[4], dev->enetaddr[5]);
256 printf ("Address in environment is "
257 "%02X:%02X:%02X:%02X:%02X:%02X\n",
258 env_enetaddr[0], env_enetaddr[1],
259 env_enetaddr[2], env_enetaddr[3],
260 env_enetaddr[4], env_enetaddr[5]);
263 memcpy(dev->enetaddr, env_enetaddr, 6);
268 } while(dev != eth_devices);
270 #ifdef CONFIG_NET_MULTI
271 /* update current ethernet name */
273 char *act = getenv("ethact");
274 if (act == NULL || strcmp(act, eth_current->name) != 0)
275 setenv("ethact", eth_current->name);
277 setenv("ethact", NULL);
286 void eth_set_enetaddr(int num, char *addr) {
287 struct eth_device *dev;
288 unsigned char enetaddr[6];
292 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
297 for (i=0; i<6; i++) {
298 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
300 addr = (*end) ? end+1 : end;
307 if (dev == eth_devices)
311 debug ( "Setting new HW address on %s\n"
312 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
314 enetaddr[0], enetaddr[1],
315 enetaddr[2], enetaddr[3],
316 enetaddr[4], enetaddr[5]);
318 memcpy(dev->enetaddr, enetaddr, 6);
320 #ifdef CONFIG_MCAST_TFTP
322 * mcast_addr: multicast ipaddr from which multicast Mac is made
323 * join: 1=join, 0=leave.
325 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
328 if (!eth_current || !eth_current->mcast)
330 mcast_mac[5] = htonl(mcast_ip) & 0xff;
331 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
332 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
336 return eth_current->mcast(eth_current, mcast_mac, join);
339 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
340 * and this is the ethernet-crc method needed for TSEC -- and perhaps
341 * some other adapter -- hash tables
343 #define CRCPOLY_LE 0xedb88320
344 u32 ether_crc (size_t len, unsigned char const *p)
351 for (i = 0; i < 8; i++)
352 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
354 /* an reverse the bits, cuz of way they arrive -- last-first */
355 crc = (crc >> 16) | (crc << 16);
356 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
357 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
358 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
359 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
366 int eth_init(bd_t *bis)
368 struct eth_device* old_current;
371 puts ("No ethernet found.\n");
375 old_current = eth_current;
377 debug ("Trying %s\n", eth_current->name);
379 if (eth_current->init(eth_current,bis) >= 0) {
380 eth_current->state = ETH_STATE_ACTIVE;
387 } while (old_current != eth_current);
397 eth_current->halt(eth_current);
399 eth_current->state = ETH_STATE_PASSIVE;
402 int eth_send(volatile void *packet, int length)
407 return eth_current->send(eth_current, packet, length);
415 return eth_current->recv(eth_current);
419 static void eth_save_packet(volatile void *packet, int length)
421 volatile char *p = packet;
424 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
427 if (PKTSIZE < length)
430 for (i = 0; i < length; i++)
431 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
433 eth_rcv_bufs[eth_rcv_last].length = length;
434 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
437 int eth_receive(volatile void *packet, int length)
439 volatile char *p = packet;
440 void *pp = push_packet;
443 if (eth_rcv_current == eth_rcv_last) {
444 push_packet = eth_save_packet;
448 if (eth_rcv_current == eth_rcv_last)
452 if (length < eth_rcv_bufs[eth_rcv_current].length)
455 length = eth_rcv_bufs[eth_rcv_current].length;
457 for (i = 0; i < length; i++)
458 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
460 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
463 #endif /* CONFIG_API */
465 void eth_try_another(int first_restart)
467 static struct eth_device *first_failed = NULL;
471 * Do not rotate between network interfaces when
472 * 'ethrotate' variable is set to 'no'.
474 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
475 (strcmp(ethrotate, "no") == 0))
482 first_failed = eth_current;
485 eth_current = eth_current->next;
487 #ifdef CONFIG_NET_MULTI
488 /* update current ethernet name */
490 char *act = getenv("ethact");
491 if (act == NULL || strcmp(act, eth_current->name) != 0)
492 setenv("ethact", eth_current->name);
496 if (first_failed == eth_current) {
501 #ifdef CONFIG_NET_MULTI
502 void eth_set_current(void)
505 struct eth_device* old_current;
507 if (!eth_current) /* XXX no current */
510 act = getenv("ethact");
512 old_current = eth_current;
514 if (strcmp(eth_current->name, act) == 0)
516 eth_current = eth_current->next;
517 } while (old_current != eth_current);
520 setenv("ethact", eth_current->name);
524 char *eth_get_name (void)
526 return (eth_current ? eth_current->name : "unknown");
528 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
530 extern int at91rm9200_miiphy_initialize(bd_t *bis);
531 extern int emac4xx_miiphy_initialize(bd_t *bis);
532 extern int mcf52x2_miiphy_initialize(bd_t *bis);
533 extern int ns7520_miiphy_initialize(bd_t *bis);
534 extern int davinci_eth_miiphy_initialize(bd_t *bis);
537 int eth_initialize(bd_t *bis)
539 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
543 #if defined(CONFIG_AT91RM9200)
544 at91rm9200_miiphy_initialize(bis);
546 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
547 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
548 emac4xx_miiphy_initialize(bis);
550 #if defined(CONFIG_MCF52x2)
551 mcf52x2_miiphy_initialize(bis);
553 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
554 ns7520_miiphy_initialize(bis);
556 #if defined(CONFIG_DRIVER_TI_EMAC)
557 davinci_eth_miiphy_initialize(bis);