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 eth_3com_initialize(bd_t*);
47 extern int fec_initialize(bd_t*);
48 extern int inca_switch_initialize(bd_t*);
49 extern int mpc5xxx_fec_initialize(bd_t*);
50 extern int mpc512x_fec_initialize(bd_t*);
51 extern int mpc8220_fec_initialize(bd_t*);
52 extern int mv6436x_eth_initialize(bd_t *);
53 extern int mv6446x_eth_initialize(bd_t *);
54 extern int plb2800_eth_initialize(bd_t*);
55 extern int ppc_4xx_eth_initialize(bd_t *);
56 extern int scc_initialize(bd_t*);
57 extern int npe_initialize(bd_t *);
58 extern int uec_initialize(int);
61 extern void (*push_packet)(volatile void *, int);
66 } eth_rcv_bufs[PKTBUFSRX];
68 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
71 static struct eth_device *eth_devices, *eth_current;
73 struct eth_device *eth_get_dev(void)
78 struct eth_device *eth_get_dev_by_name(char *devname)
80 struct eth_device *dev, *target_dev;
88 if (strcmp(devname, dev->name) == 0) {
93 } while (dev != eth_devices);
98 int eth_get_dev_index (void)
100 struct eth_device *dev;
107 for (dev = eth_devices; dev; dev = dev->next) {
108 if (dev == eth_current)
120 int eth_register(struct eth_device* dev)
122 struct eth_device *d;
125 eth_current = eth_devices = dev;
126 #ifdef CONFIG_NET_MULTI
127 /* update current ethernet name */
129 char *act = getenv("ethact");
130 if (act == NULL || strcmp(act, eth_current->name) != 0)
131 setenv("ethact", eth_current->name);
135 for (d=eth_devices; d->next!=eth_devices; d=d->next);
139 dev->state = ETH_STATE_INIT;
140 dev->next = eth_devices;
145 int eth_initialize(bd_t *bis)
148 unsigned char env_enetaddr[6];
149 int i, eth_number = 0;
155 show_boot_progress (64);
156 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
159 /* Try board-specific initialization first. If it fails or isn't
160 * present, try the cpu-specific initialization */
161 if (board_eth_init(bis) < 0)
164 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
165 mv6436x_eth_initialize(bis);
167 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
168 mv6446x_eth_initialize(bis);
170 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
171 ppc_4xx_eth_initialize(bis);
173 #ifdef CONFIG_INCA_IP_SWITCH
174 inca_switch_initialize(bis);
176 #ifdef CONFIG_PLB2800_ETHER
177 plb2800_eth_initialize(bis);
182 #if defined(CONFIG_MPC5xxx_FEC)
183 mpc5xxx_fec_initialize(bis);
185 #if defined(CONFIG_MPC512x_FEC)
186 mpc512x_fec_initialize (bis);
188 #if defined(CONFIG_MPC8220_FEC)
189 mpc8220_fec_initialize(bis);
191 #if defined(CONFIG_UEC_ETH1)
194 #if defined(CONFIG_UEC_ETH2)
197 #if defined(CONFIG_UEC_ETH3)
200 #if defined(CONFIG_UEC_ETH4)
204 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
207 #if defined(CONFIG_AU1X00)
208 au1x00_enet_initialize(bis);
210 #if defined(CONFIG_IXP4XX_NPE)
214 e1000_initialize(bis);
216 #ifdef CONFIG_EEPRO100
217 eepro100_initialize(bis);
220 dc21x4x_initialize(bis);
223 eth_3com_initialize(bis);
226 puts ("No ethernet found.\n");
227 show_boot_progress (-64);
229 struct eth_device *dev = eth_devices;
230 char *ethprime = getenv ("ethprime");
232 show_boot_progress (65);
237 printf("%s", dev->name);
239 if (ethprime && strcmp (dev->name, ethprime) == 0) {
244 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
245 tmp = getenv (enetvar);
247 for (i=0; i<6; i++) {
248 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
250 tmp = (*end) ? end+1 : end;
253 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
254 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
255 memcmp(dev->enetaddr, env_enetaddr, 6))
257 printf ("\nWarning: %s MAC addresses don't match:\n",
259 printf ("Address in SROM is "
260 "%02X:%02X:%02X:%02X:%02X:%02X\n",
261 dev->enetaddr[0], dev->enetaddr[1],
262 dev->enetaddr[2], dev->enetaddr[3],
263 dev->enetaddr[4], dev->enetaddr[5]);
264 printf ("Address in environment is "
265 "%02X:%02X:%02X:%02X:%02X:%02X\n",
266 env_enetaddr[0], env_enetaddr[1],
267 env_enetaddr[2], env_enetaddr[3],
268 env_enetaddr[4], env_enetaddr[5]);
271 memcpy(dev->enetaddr, env_enetaddr, 6);
276 } while(dev != eth_devices);
278 #ifdef CONFIG_NET_MULTI
279 /* update current ethernet name */
281 char *act = getenv("ethact");
282 if (act == NULL || strcmp(act, eth_current->name) != 0)
283 setenv("ethact", eth_current->name);
285 setenv("ethact", NULL);
294 void eth_set_enetaddr(int num, char *addr) {
295 struct eth_device *dev;
296 unsigned char enetaddr[6];
300 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
305 for (i=0; i<6; i++) {
306 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
308 addr = (*end) ? end+1 : end;
315 if (dev == eth_devices)
319 debug ( "Setting new HW address on %s\n"
320 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
322 enetaddr[0], enetaddr[1],
323 enetaddr[2], enetaddr[3],
324 enetaddr[4], enetaddr[5]);
326 memcpy(dev->enetaddr, enetaddr, 6);
328 #ifdef CONFIG_MCAST_TFTP
330 * mcast_addr: multicast ipaddr from which multicast Mac is made
331 * join: 1=join, 0=leave.
333 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
336 if (!eth_current || !eth_current->mcast)
338 mcast_mac[5] = htonl(mcast_ip) & 0xff;
339 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
340 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
344 return eth_current->mcast(eth_current, mcast_mac, join);
347 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
348 * and this is the ethernet-crc method needed for TSEC -- and perhaps
349 * some other adapter -- hash tables
351 #define CRCPOLY_LE 0xedb88320
352 u32 ether_crc (size_t len, unsigned char const *p)
359 for (i = 0; i < 8; i++)
360 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
362 /* an reverse the bits, cuz of way they arrive -- last-first */
363 crc = (crc >> 16) | (crc << 16);
364 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
365 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
366 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
367 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
374 int eth_init(bd_t *bis)
376 struct eth_device* old_current;
379 puts ("No ethernet found.\n");
383 old_current = eth_current;
385 debug ("Trying %s\n", eth_current->name);
387 if (eth_current->init(eth_current,bis) >= 0) {
388 eth_current->state = ETH_STATE_ACTIVE;
395 } while (old_current != eth_current);
405 eth_current->halt(eth_current);
407 eth_current->state = ETH_STATE_PASSIVE;
410 int eth_send(volatile void *packet, int length)
415 return eth_current->send(eth_current, packet, length);
423 return eth_current->recv(eth_current);
427 static void eth_save_packet(volatile void *packet, int length)
429 volatile char *p = packet;
432 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
435 if (PKTSIZE < length)
438 for (i = 0; i < length; i++)
439 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
441 eth_rcv_bufs[eth_rcv_last].length = length;
442 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
445 int eth_receive(volatile void *packet, int length)
447 volatile char *p = packet;
448 void *pp = push_packet;
451 if (eth_rcv_current == eth_rcv_last) {
452 push_packet = eth_save_packet;
456 if (eth_rcv_current == eth_rcv_last)
460 if (length < eth_rcv_bufs[eth_rcv_current].length)
463 length = eth_rcv_bufs[eth_rcv_current].length;
465 for (i = 0; i < length; i++)
466 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
468 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
471 #endif /* CONFIG_API */
473 void eth_try_another(int first_restart)
475 static struct eth_device *first_failed = NULL;
479 * Do not rotate between network interfaces when
480 * 'ethrotate' variable is set to 'no'.
482 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
483 (strcmp(ethrotate, "no") == 0))
490 first_failed = eth_current;
493 eth_current = eth_current->next;
495 #ifdef CONFIG_NET_MULTI
496 /* update current ethernet name */
498 char *act = getenv("ethact");
499 if (act == NULL || strcmp(act, eth_current->name) != 0)
500 setenv("ethact", eth_current->name);
504 if (first_failed == eth_current) {
509 #ifdef CONFIG_NET_MULTI
510 void eth_set_current(void)
513 struct eth_device* old_current;
515 if (!eth_current) /* XXX no current */
518 act = getenv("ethact");
520 old_current = eth_current;
522 if (strcmp(eth_current->name, act) == 0)
524 eth_current = eth_current->next;
525 } while (old_current != eth_current);
528 setenv("ethact", eth_current->name);
532 char *eth_get_name (void)
534 return (eth_current ? eth_current->name : "unknown");
536 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
538 extern int at91rm9200_miiphy_initialize(bd_t *bis);
539 extern int emac4xx_miiphy_initialize(bd_t *bis);
540 extern int mcf52x2_miiphy_initialize(bd_t *bis);
541 extern int ns7520_miiphy_initialize(bd_t *bis);
542 extern int davinci_eth_miiphy_initialize(bd_t *bis);
545 int eth_initialize(bd_t *bis)
547 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
551 #if defined(CONFIG_AT91RM9200)
552 at91rm9200_miiphy_initialize(bis);
554 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
555 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
556 emac4xx_miiphy_initialize(bis);
558 #if defined(CONFIG_MCF52x2)
559 mcf52x2_miiphy_initialize(bis);
561 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
562 ns7520_miiphy_initialize(bis);
564 #if defined(CONFIG_DRIVER_TI_EMAC)
565 davinci_eth_miiphy_initialize(bis);