2 * (C) Copyright 2001-2004
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,
30 void eth_parse_enetaddr(const char *addr, uchar *enetaddr)
35 for (i = 0; i < 6; ++i) {
36 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
38 addr = (*end) ? end + 1 : end;
42 int eth_getenv_enetaddr(char *name, uchar *enetaddr)
44 eth_parse_enetaddr(getenv(name), enetaddr);
45 return is_valid_ether_addr(enetaddr);
48 int eth_setenv_enetaddr(char *name, const uchar *enetaddr)
52 sprintf(buf, "%pM", enetaddr);
54 return setenv(name, buf);
57 int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr)
60 sprintf(enetvar, index ? "eth%daddr" : "ethaddr", index);
61 return eth_getenv_enetaddr(enetvar, enetaddr);
65 #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
68 * CPU and board-specific Ethernet initializations. Aliased function
69 * signals caller to move on
71 static int __def_eth_init(bd_t *bis)
75 int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
76 int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
78 extern int mv6436x_eth_initialize(bd_t *);
79 extern int mv6446x_eth_initialize(bd_t *);
82 extern void (*push_packet)(volatile void *, int);
87 } eth_rcv_bufs[PKTBUFSRX];
89 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
92 static struct eth_device *eth_devices, *eth_current;
94 struct eth_device *eth_get_dev(void)
99 struct eth_device *eth_get_dev_by_name(char *devname)
101 struct eth_device *dev, *target_dev;
109 if (strcmp(devname, dev->name) == 0) {
114 } while (dev != eth_devices);
119 struct eth_device *eth_get_dev_by_index(int index)
121 struct eth_device *dev, *target_dev;
136 } while (dev != eth_devices);
141 int eth_get_dev_index (void)
143 struct eth_device *dev;
150 for (dev = eth_devices; dev; dev = dev->next) {
151 if (dev == eth_current)
163 int eth_register(struct eth_device* dev)
165 struct eth_device *d;
168 eth_current = eth_devices = dev;
169 #ifdef CONFIG_NET_MULTI
170 /* update current ethernet name */
172 char *act = getenv("ethact");
173 if (act == NULL || strcmp(act, eth_current->name) != 0)
174 setenv("ethact", eth_current->name);
178 for (d=eth_devices; d->next!=eth_devices; d=d->next);
182 dev->state = ETH_STATE_INIT;
183 dev->next = eth_devices;
188 int eth_initialize(bd_t *bis)
190 unsigned char env_enetaddr[6];
196 show_boot_progress (64);
197 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
200 /* Try board-specific initialization first. If it fails or isn't
201 * present, try the cpu-specific initialization */
202 if (board_eth_init(bis) < 0)
205 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
206 mv6436x_eth_initialize(bis);
208 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
209 mv6446x_eth_initialize(bis);
212 puts ("No ethernet found.\n");
213 show_boot_progress (-64);
215 struct eth_device *dev = eth_devices;
216 char *ethprime = getenv ("ethprime");
218 show_boot_progress (65);
223 printf("%s", dev->name);
225 if (ethprime && strcmp (dev->name, ethprime) == 0) {
230 eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);
232 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
233 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
234 memcmp(dev->enetaddr, env_enetaddr, 6))
236 printf ("\nWarning: %s MAC addresses don't match:\n",
238 printf ("Address in SROM is %pM\n",
240 printf ("Address in environment is %pM\n",
244 memcpy(dev->enetaddr, env_enetaddr, 6);
249 } while(dev != eth_devices);
251 #ifdef CONFIG_NET_MULTI
252 /* update current ethernet name */
254 char *act = getenv("ethact");
255 if (act == NULL || strcmp(act, eth_current->name) != 0)
256 setenv("ethact", eth_current->name);
258 setenv("ethact", NULL);
267 #ifdef CONFIG_MCAST_TFTP
269 * mcast_addr: multicast ipaddr from which multicast Mac is made
270 * join: 1=join, 0=leave.
272 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
275 if (!eth_current || !eth_current->mcast)
277 mcast_mac[5] = htonl(mcast_ip) & 0xff;
278 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
279 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
283 return eth_current->mcast(eth_current, mcast_mac, join);
286 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
287 * and this is the ethernet-crc method needed for TSEC -- and perhaps
288 * some other adapter -- hash tables
290 #define CRCPOLY_LE 0xedb88320
291 u32 ether_crc (size_t len, unsigned char const *p)
298 for (i = 0; i < 8; i++)
299 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
301 /* an reverse the bits, cuz of way they arrive -- last-first */
302 crc = (crc >> 16) | (crc << 16);
303 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
304 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
305 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
306 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
313 int eth_init(bd_t *bis)
316 struct eth_device *old_current, *dev;
319 puts ("No ethernet found.\n");
323 /* Sync environment with network devices */
327 uchar env_enetaddr[6];
329 if (eth_getenv_enetaddr_by_index(eth_number, env_enetaddr))
330 memcpy(dev->enetaddr, env_enetaddr, 6);
334 } while (dev != eth_devices);
336 old_current = eth_current;
338 debug("Trying %s\n", eth_current->name);
340 if (eth_current->init(eth_current,bis) >= 0) {
341 eth_current->state = ETH_STATE_ACTIVE;
348 } while (old_current != eth_current);
358 eth_current->halt(eth_current);
360 eth_current->state = ETH_STATE_PASSIVE;
363 int eth_send(volatile void *packet, int length)
368 return eth_current->send(eth_current, packet, length);
376 return eth_current->recv(eth_current);
380 static void eth_save_packet(volatile void *packet, int length)
382 volatile char *p = packet;
385 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
388 if (PKTSIZE < length)
391 for (i = 0; i < length; i++)
392 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
394 eth_rcv_bufs[eth_rcv_last].length = length;
395 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
398 int eth_receive(volatile void *packet, int length)
400 volatile char *p = packet;
401 void *pp = push_packet;
404 if (eth_rcv_current == eth_rcv_last) {
405 push_packet = eth_save_packet;
409 if (eth_rcv_current == eth_rcv_last)
413 if (length < eth_rcv_bufs[eth_rcv_current].length)
416 length = eth_rcv_bufs[eth_rcv_current].length;
418 for (i = 0; i < length; i++)
419 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
421 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
424 #endif /* CONFIG_API */
426 void eth_try_another(int first_restart)
428 static struct eth_device *first_failed = NULL;
432 * Do not rotate between network interfaces when
433 * 'ethrotate' variable is set to 'no'.
435 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
436 (strcmp(ethrotate, "no") == 0))
443 first_failed = eth_current;
446 eth_current = eth_current->next;
448 #ifdef CONFIG_NET_MULTI
449 /* update current ethernet name */
451 char *act = getenv("ethact");
452 if (act == NULL || strcmp(act, eth_current->name) != 0)
453 setenv("ethact", eth_current->name);
457 if (first_failed == eth_current) {
462 #ifdef CONFIG_NET_MULTI
463 void eth_set_current(void)
465 static char *act = NULL;
466 static int env_changed_id = 0;
467 struct eth_device* old_current;
470 if (!eth_current) /* XXX no current */
473 env_id = get_env_id();
474 if ((act == NULL) || (env_changed_id != env_id)) {
475 act = getenv("ethact");
476 env_changed_id = env_id;
479 old_current = eth_current;
481 if (strcmp(eth_current->name, act) == 0)
483 eth_current = eth_current->next;
484 } while (old_current != eth_current);
487 setenv("ethact", eth_current->name);
491 char *eth_get_name (void)
493 return (eth_current ? eth_current->name : "unknown");
495 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
497 #warning Ethernet driver is deprecated. Please update to use CONFIG_NET_MULTI
499 extern int at91rm9200_miiphy_initialize(bd_t *bis);
500 extern int mcf52x2_miiphy_initialize(bd_t *bis);
501 extern int ns7520_miiphy_initialize(bd_t *bis);
504 int eth_initialize(bd_t *bis)
506 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
510 #if defined(CONFIG_AT91RM9200)
511 at91rm9200_miiphy_initialize(bis);
513 #if defined(CONFIG_MCF52x2)
514 mcf52x2_miiphy_initialize(bis);
516 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
517 ns7520_miiphy_initialize(bis);