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 uec_initialize(int);
52 extern void (*push_packet)(volatile void *, int);
57 } eth_rcv_bufs[PKTBUFSRX];
59 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
62 static struct eth_device *eth_devices, *eth_current;
64 struct eth_device *eth_get_dev(void)
69 struct eth_device *eth_get_dev_by_name(char *devname)
71 struct eth_device *dev, *target_dev;
79 if (strcmp(devname, dev->name) == 0) {
84 } while (dev != eth_devices);
89 int eth_get_dev_index (void)
91 struct eth_device *dev;
98 for (dev = eth_devices; dev; dev = dev->next) {
99 if (dev == eth_current)
111 int eth_register(struct eth_device* dev)
113 struct eth_device *d;
116 eth_current = eth_devices = dev;
117 #ifdef CONFIG_NET_MULTI
118 /* update current ethernet name */
120 char *act = getenv("ethact");
121 if (act == NULL || strcmp(act, eth_current->name) != 0)
122 setenv("ethact", eth_current->name);
126 for (d=eth_devices; d->next!=eth_devices; d=d->next);
130 dev->state = ETH_STATE_INIT;
131 dev->next = eth_devices;
136 int eth_initialize(bd_t *bis)
139 unsigned char env_enetaddr[6];
140 int i, eth_number = 0;
146 show_boot_progress (64);
147 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
150 /* Try board-specific initialization first. If it fails or isn't
151 * present, try the cpu-specific initialization */
152 if (board_eth_init(bis) < 0)
155 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
156 mv6436x_eth_initialize(bis);
158 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
159 mv6446x_eth_initialize(bis);
161 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
162 ppc_4xx_eth_initialize(bis);
167 #if defined(CONFIG_MPC8220_FEC)
168 mpc8220_fec_initialize(bis);
170 #if defined(CONFIG_UEC_ETH1)
173 #if defined(CONFIG_UEC_ETH2)
176 #if defined(CONFIG_UEC_ETH3)
179 #if defined(CONFIG_UEC_ETH4)
182 #if defined(CONFIG_UEC_ETH5)
185 #if defined(CONFIG_UEC_ETH6)
189 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
192 #if defined(CONFIG_AU1X00)
193 au1x00_enet_initialize(bis);
196 puts ("No ethernet found.\n");
197 show_boot_progress (-64);
199 struct eth_device *dev = eth_devices;
200 char *ethprime = getenv ("ethprime");
202 show_boot_progress (65);
207 printf("%s", dev->name);
209 if (ethprime && strcmp (dev->name, ethprime) == 0) {
214 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
215 tmp = getenv (enetvar);
217 for (i=0; i<6; i++) {
218 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
220 tmp = (*end) ? end+1 : end;
223 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
224 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
225 memcmp(dev->enetaddr, env_enetaddr, 6))
227 printf ("\nWarning: %s MAC addresses don't match:\n",
229 printf ("Address in SROM is "
230 "%02X:%02X:%02X:%02X:%02X:%02X\n",
231 dev->enetaddr[0], dev->enetaddr[1],
232 dev->enetaddr[2], dev->enetaddr[3],
233 dev->enetaddr[4], dev->enetaddr[5]);
234 printf ("Address in environment is "
235 "%02X:%02X:%02X:%02X:%02X:%02X\n",
236 env_enetaddr[0], env_enetaddr[1],
237 env_enetaddr[2], env_enetaddr[3],
238 env_enetaddr[4], env_enetaddr[5]);
241 memcpy(dev->enetaddr, env_enetaddr, 6);
246 } while(dev != eth_devices);
248 #ifdef CONFIG_NET_MULTI
249 /* update current ethernet name */
251 char *act = getenv("ethact");
252 if (act == NULL || strcmp(act, eth_current->name) != 0)
253 setenv("ethact", eth_current->name);
255 setenv("ethact", NULL);
264 void eth_set_enetaddr(int num, char *addr) {
265 struct eth_device *dev;
266 unsigned char enetaddr[6];
270 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
275 for (i=0; i<6; i++) {
276 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
278 addr = (*end) ? end+1 : end;
285 if (dev == eth_devices)
289 debug ( "Setting new HW address on %s\n"
290 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
292 enetaddr[0], enetaddr[1],
293 enetaddr[2], enetaddr[3],
294 enetaddr[4], enetaddr[5]);
296 memcpy(dev->enetaddr, enetaddr, 6);
298 #ifdef CONFIG_MCAST_TFTP
300 * mcast_addr: multicast ipaddr from which multicast Mac is made
301 * join: 1=join, 0=leave.
303 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
306 if (!eth_current || !eth_current->mcast)
308 mcast_mac[5] = htonl(mcast_ip) & 0xff;
309 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
310 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
314 return eth_current->mcast(eth_current, mcast_mac, join);
317 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
318 * and this is the ethernet-crc method needed for TSEC -- and perhaps
319 * some other adapter -- hash tables
321 #define CRCPOLY_LE 0xedb88320
322 u32 ether_crc (size_t len, unsigned char const *p)
329 for (i = 0; i < 8; i++)
330 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
332 /* an reverse the bits, cuz of way they arrive -- last-first */
333 crc = (crc >> 16) | (crc << 16);
334 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
335 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
336 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
337 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
344 int eth_init(bd_t *bis)
346 struct eth_device* old_current;
349 puts ("No ethernet found.\n");
353 old_current = eth_current;
355 debug ("Trying %s\n", eth_current->name);
357 if (eth_current->init(eth_current,bis) >= 0) {
358 eth_current->state = ETH_STATE_ACTIVE;
365 } while (old_current != eth_current);
375 eth_current->halt(eth_current);
377 eth_current->state = ETH_STATE_PASSIVE;
380 int eth_send(volatile void *packet, int length)
385 return eth_current->send(eth_current, packet, length);
393 return eth_current->recv(eth_current);
397 static void eth_save_packet(volatile void *packet, int length)
399 volatile char *p = packet;
402 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
405 if (PKTSIZE < length)
408 for (i = 0; i < length; i++)
409 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
411 eth_rcv_bufs[eth_rcv_last].length = length;
412 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
415 int eth_receive(volatile void *packet, int length)
417 volatile char *p = packet;
418 void *pp = push_packet;
421 if (eth_rcv_current == eth_rcv_last) {
422 push_packet = eth_save_packet;
426 if (eth_rcv_current == eth_rcv_last)
430 if (length < eth_rcv_bufs[eth_rcv_current].length)
433 length = eth_rcv_bufs[eth_rcv_current].length;
435 for (i = 0; i < length; i++)
436 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
438 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
441 #endif /* CONFIG_API */
443 void eth_try_another(int first_restart)
445 static struct eth_device *first_failed = NULL;
449 * Do not rotate between network interfaces when
450 * 'ethrotate' variable is set to 'no'.
452 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
453 (strcmp(ethrotate, "no") == 0))
460 first_failed = eth_current;
463 eth_current = eth_current->next;
465 #ifdef CONFIG_NET_MULTI
466 /* update current ethernet name */
468 char *act = getenv("ethact");
469 if (act == NULL || strcmp(act, eth_current->name) != 0)
470 setenv("ethact", eth_current->name);
474 if (first_failed == eth_current) {
479 #ifdef CONFIG_NET_MULTI
480 void eth_set_current(void)
483 struct eth_device* old_current;
485 if (!eth_current) /* XXX no current */
488 act = getenv("ethact");
490 old_current = eth_current;
492 if (strcmp(eth_current->name, act) == 0)
494 eth_current = eth_current->next;
495 } while (old_current != eth_current);
498 setenv("ethact", eth_current->name);
502 char *eth_get_name (void)
504 return (eth_current ? eth_current->name : "unknown");
506 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
508 extern int at91rm9200_miiphy_initialize(bd_t *bis);
509 extern int emac4xx_miiphy_initialize(bd_t *bis);
510 extern int mcf52x2_miiphy_initialize(bd_t *bis);
511 extern int ns7520_miiphy_initialize(bd_t *bis);
512 extern int davinci_eth_miiphy_initialize(bd_t *bis);
515 int eth_initialize(bd_t *bis)
517 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
521 #if defined(CONFIG_AT91RM9200)
522 at91rm9200_miiphy_initialize(bis);
524 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
525 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
526 emac4xx_miiphy_initialize(bis);
528 #if defined(CONFIG_MCF52x2)
529 mcf52x2_miiphy_initialize(bis);
531 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
532 ns7520_miiphy_initialize(bis);
534 #if defined(CONFIG_DRIVER_TI_EMAC)
535 davinci_eth_miiphy_initialize(bis);