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 fec_initialize(bd_t*);
44 extern int mpc8220_fec_initialize(bd_t*);
45 extern int mv6436x_eth_initialize(bd_t *);
46 extern int mv6446x_eth_initialize(bd_t *);
47 extern int ppc_4xx_eth_initialize(bd_t *);
48 extern int scc_initialize(bd_t*);
49 extern int npe_initialize(bd_t *);
50 extern int uec_initialize(int);
53 extern void (*push_packet)(volatile void *, int);
58 } eth_rcv_bufs[PKTBUFSRX];
60 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
63 static struct eth_device *eth_devices, *eth_current;
65 struct eth_device *eth_get_dev(void)
70 struct eth_device *eth_get_dev_by_name(char *devname)
72 struct eth_device *dev, *target_dev;
80 if (strcmp(devname, dev->name) == 0) {
85 } while (dev != eth_devices);
90 int eth_get_dev_index (void)
92 struct eth_device *dev;
99 for (dev = eth_devices; dev; dev = dev->next) {
100 if (dev == eth_current)
112 int eth_register(struct eth_device* dev)
114 struct eth_device *d;
117 eth_current = eth_devices = dev;
118 #ifdef CONFIG_NET_MULTI
119 /* update current ethernet name */
121 char *act = getenv("ethact");
122 if (act == NULL || strcmp(act, eth_current->name) != 0)
123 setenv("ethact", eth_current->name);
127 for (d=eth_devices; d->next!=eth_devices; d=d->next);
131 dev->state = ETH_STATE_INIT;
132 dev->next = eth_devices;
137 int eth_initialize(bd_t *bis)
140 unsigned char env_enetaddr[6];
141 int i, eth_number = 0;
147 show_boot_progress (64);
148 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
151 /* Try board-specific initialization first. If it fails or isn't
152 * present, try the cpu-specific initialization */
153 if (board_eth_init(bis) < 0)
156 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
157 mv6436x_eth_initialize(bis);
159 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
160 mv6446x_eth_initialize(bis);
162 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
163 ppc_4xx_eth_initialize(bis);
168 #if defined(CONFIG_MPC8220_FEC)
169 mpc8220_fec_initialize(bis);
171 #if defined(CONFIG_UEC_ETH1)
174 #if defined(CONFIG_UEC_ETH2)
177 #if defined(CONFIG_UEC_ETH3)
180 #if defined(CONFIG_UEC_ETH4)
183 #if defined(CONFIG_UEC_ETH5)
186 #if defined(CONFIG_UEC_ETH6)
190 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
193 #if defined(CONFIG_AU1X00)
194 au1x00_enet_initialize(bis);
196 #if defined(CONFIG_IXP4XX_NPE)
200 puts ("No ethernet found.\n");
201 show_boot_progress (-64);
203 struct eth_device *dev = eth_devices;
204 char *ethprime = getenv ("ethprime");
206 show_boot_progress (65);
211 printf("%s", dev->name);
213 if (ethprime && strcmp (dev->name, ethprime) == 0) {
218 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
219 tmp = getenv (enetvar);
221 for (i=0; i<6; i++) {
222 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
224 tmp = (*end) ? end+1 : end;
227 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
228 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
229 memcmp(dev->enetaddr, env_enetaddr, 6))
231 printf ("\nWarning: %s MAC addresses don't match:\n",
233 printf ("Address in SROM is "
234 "%02X:%02X:%02X:%02X:%02X:%02X\n",
235 dev->enetaddr[0], dev->enetaddr[1],
236 dev->enetaddr[2], dev->enetaddr[3],
237 dev->enetaddr[4], dev->enetaddr[5]);
238 printf ("Address in environment is "
239 "%02X:%02X:%02X:%02X:%02X:%02X\n",
240 env_enetaddr[0], env_enetaddr[1],
241 env_enetaddr[2], env_enetaddr[3],
242 env_enetaddr[4], env_enetaddr[5]);
245 memcpy(dev->enetaddr, env_enetaddr, 6);
250 } while(dev != eth_devices);
252 #ifdef CONFIG_NET_MULTI
253 /* update current ethernet name */
255 char *act = getenv("ethact");
256 if (act == NULL || strcmp(act, eth_current->name) != 0)
257 setenv("ethact", eth_current->name);
259 setenv("ethact", NULL);
268 void eth_set_enetaddr(int num, char *addr) {
269 struct eth_device *dev;
270 unsigned char enetaddr[6];
274 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
279 for (i=0; i<6; i++) {
280 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
282 addr = (*end) ? end+1 : end;
289 if (dev == eth_devices)
293 debug ( "Setting new HW address on %s\n"
294 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
296 enetaddr[0], enetaddr[1],
297 enetaddr[2], enetaddr[3],
298 enetaddr[4], enetaddr[5]);
300 memcpy(dev->enetaddr, enetaddr, 6);
302 #ifdef CONFIG_MCAST_TFTP
304 * mcast_addr: multicast ipaddr from which multicast Mac is made
305 * join: 1=join, 0=leave.
307 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
310 if (!eth_current || !eth_current->mcast)
312 mcast_mac[5] = htonl(mcast_ip) & 0xff;
313 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
314 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
318 return eth_current->mcast(eth_current, mcast_mac, join);
321 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
322 * and this is the ethernet-crc method needed for TSEC -- and perhaps
323 * some other adapter -- hash tables
325 #define CRCPOLY_LE 0xedb88320
326 u32 ether_crc (size_t len, unsigned char const *p)
333 for (i = 0; i < 8; i++)
334 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
336 /* an reverse the bits, cuz of way they arrive -- last-first */
337 crc = (crc >> 16) | (crc << 16);
338 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
339 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
340 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
341 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
348 int eth_init(bd_t *bis)
350 struct eth_device* old_current;
353 puts ("No ethernet found.\n");
357 old_current = eth_current;
359 debug ("Trying %s\n", eth_current->name);
361 if (eth_current->init(eth_current,bis) >= 0) {
362 eth_current->state = ETH_STATE_ACTIVE;
369 } while (old_current != eth_current);
379 eth_current->halt(eth_current);
381 eth_current->state = ETH_STATE_PASSIVE;
384 int eth_send(volatile void *packet, int length)
389 return eth_current->send(eth_current, packet, length);
397 return eth_current->recv(eth_current);
401 static void eth_save_packet(volatile void *packet, int length)
403 volatile char *p = packet;
406 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
409 if (PKTSIZE < length)
412 for (i = 0; i < length; i++)
413 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
415 eth_rcv_bufs[eth_rcv_last].length = length;
416 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
419 int eth_receive(volatile void *packet, int length)
421 volatile char *p = packet;
422 void *pp = push_packet;
425 if (eth_rcv_current == eth_rcv_last) {
426 push_packet = eth_save_packet;
430 if (eth_rcv_current == eth_rcv_last)
434 if (length < eth_rcv_bufs[eth_rcv_current].length)
437 length = eth_rcv_bufs[eth_rcv_current].length;
439 for (i = 0; i < length; i++)
440 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
442 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
445 #endif /* CONFIG_API */
447 void eth_try_another(int first_restart)
449 static struct eth_device *first_failed = NULL;
453 * Do not rotate between network interfaces when
454 * 'ethrotate' variable is set to 'no'.
456 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
457 (strcmp(ethrotate, "no") == 0))
464 first_failed = eth_current;
467 eth_current = eth_current->next;
469 #ifdef CONFIG_NET_MULTI
470 /* update current ethernet name */
472 char *act = getenv("ethact");
473 if (act == NULL || strcmp(act, eth_current->name) != 0)
474 setenv("ethact", eth_current->name);
478 if (first_failed == eth_current) {
483 #ifdef CONFIG_NET_MULTI
484 void eth_set_current(void)
487 struct eth_device* old_current;
489 if (!eth_current) /* XXX no current */
492 act = getenv("ethact");
494 old_current = eth_current;
496 if (strcmp(eth_current->name, act) == 0)
498 eth_current = eth_current->next;
499 } while (old_current != eth_current);
502 setenv("ethact", eth_current->name);
506 char *eth_get_name (void)
508 return (eth_current ? eth_current->name : "unknown");
510 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
512 extern int at91rm9200_miiphy_initialize(bd_t *bis);
513 extern int emac4xx_miiphy_initialize(bd_t *bis);
514 extern int mcf52x2_miiphy_initialize(bd_t *bis);
515 extern int ns7520_miiphy_initialize(bd_t *bis);
516 extern int davinci_eth_miiphy_initialize(bd_t *bis);
519 int eth_initialize(bd_t *bis)
521 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
525 #if defined(CONFIG_AT91RM9200)
526 at91rm9200_miiphy_initialize(bis);
528 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
529 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
530 emac4xx_miiphy_initialize(bis);
532 #if defined(CONFIG_MCF52x2)
533 mcf52x2_miiphy_initialize(bis);
535 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
536 ns7520_miiphy_initialize(bis);
538 #if defined(CONFIG_DRIVER_TI_EMAC)
539 davinci_eth_miiphy_initialize(bis);