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 mpc8220_fec_initialize(bd_t*);
43 extern int mv6436x_eth_initialize(bd_t *);
44 extern int mv6446x_eth_initialize(bd_t *);
45 extern int ppc_4xx_eth_initialize(bd_t *);
46 extern int scc_initialize(bd_t*);
49 extern void (*push_packet)(volatile void *, int);
54 } eth_rcv_bufs[PKTBUFSRX];
56 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
59 static struct eth_device *eth_devices, *eth_current;
61 struct eth_device *eth_get_dev(void)
66 struct eth_device *eth_get_dev_by_name(char *devname)
68 struct eth_device *dev, *target_dev;
76 if (strcmp(devname, dev->name) == 0) {
81 } while (dev != eth_devices);
86 int eth_get_dev_index (void)
88 struct eth_device *dev;
95 for (dev = eth_devices; dev; dev = dev->next) {
96 if (dev == eth_current)
108 int eth_register(struct eth_device* dev)
110 struct eth_device *d;
113 eth_current = eth_devices = dev;
114 #ifdef CONFIG_NET_MULTI
115 /* update current ethernet name */
117 char *act = getenv("ethact");
118 if (act == NULL || strcmp(act, eth_current->name) != 0)
119 setenv("ethact", eth_current->name);
123 for (d=eth_devices; d->next!=eth_devices; d=d->next);
127 dev->state = ETH_STATE_INIT;
128 dev->next = eth_devices;
133 int eth_initialize(bd_t *bis)
136 unsigned char env_enetaddr[6];
137 int i, eth_number = 0;
143 show_boot_progress (64);
144 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
147 /* Try board-specific initialization first. If it fails or isn't
148 * present, try the cpu-specific initialization */
149 if (board_eth_init(bis) < 0)
152 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
153 mv6436x_eth_initialize(bis);
155 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
156 mv6446x_eth_initialize(bis);
158 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
159 ppc_4xx_eth_initialize(bis);
164 #if defined(CONFIG_MPC8220_FEC)
165 mpc8220_fec_initialize(bis);
168 puts ("No ethernet found.\n");
169 show_boot_progress (-64);
171 struct eth_device *dev = eth_devices;
172 char *ethprime = getenv ("ethprime");
174 show_boot_progress (65);
179 printf("%s", dev->name);
181 if (ethprime && strcmp (dev->name, ethprime) == 0) {
186 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
187 tmp = getenv (enetvar);
189 for (i=0; i<6; i++) {
190 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
192 tmp = (*end) ? end+1 : end;
195 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
196 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
197 memcmp(dev->enetaddr, env_enetaddr, 6))
199 printf ("\nWarning: %s MAC addresses don't match:\n",
201 printf ("Address in SROM is "
202 "%02X:%02X:%02X:%02X:%02X:%02X\n",
203 dev->enetaddr[0], dev->enetaddr[1],
204 dev->enetaddr[2], dev->enetaddr[3],
205 dev->enetaddr[4], dev->enetaddr[5]);
206 printf ("Address in environment is "
207 "%02X:%02X:%02X:%02X:%02X:%02X\n",
208 env_enetaddr[0], env_enetaddr[1],
209 env_enetaddr[2], env_enetaddr[3],
210 env_enetaddr[4], env_enetaddr[5]);
213 memcpy(dev->enetaddr, env_enetaddr, 6);
218 } while(dev != eth_devices);
220 #ifdef CONFIG_NET_MULTI
221 /* update current ethernet name */
223 char *act = getenv("ethact");
224 if (act == NULL || strcmp(act, eth_current->name) != 0)
225 setenv("ethact", eth_current->name);
227 setenv("ethact", NULL);
236 void eth_set_enetaddr(int num, char *addr) {
237 struct eth_device *dev;
238 unsigned char enetaddr[6];
242 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
247 for (i=0; i<6; i++) {
248 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
250 addr = (*end) ? end+1 : end;
257 if (dev == eth_devices)
261 debug ( "Setting new HW address on %s\n"
262 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
264 enetaddr[0], enetaddr[1],
265 enetaddr[2], enetaddr[3],
266 enetaddr[4], enetaddr[5]);
268 memcpy(dev->enetaddr, enetaddr, 6);
270 #ifdef CONFIG_MCAST_TFTP
272 * mcast_addr: multicast ipaddr from which multicast Mac is made
273 * join: 1=join, 0=leave.
275 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
278 if (!eth_current || !eth_current->mcast)
280 mcast_mac[5] = htonl(mcast_ip) & 0xff;
281 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
282 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
286 return eth_current->mcast(eth_current, mcast_mac, join);
289 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
290 * and this is the ethernet-crc method needed for TSEC -- and perhaps
291 * some other adapter -- hash tables
293 #define CRCPOLY_LE 0xedb88320
294 u32 ether_crc (size_t len, unsigned char const *p)
301 for (i = 0; i < 8; i++)
302 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
304 /* an reverse the bits, cuz of way they arrive -- last-first */
305 crc = (crc >> 16) | (crc << 16);
306 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
307 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
308 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
309 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
316 int eth_init(bd_t *bis)
318 struct eth_device* old_current;
321 puts ("No ethernet found.\n");
325 old_current = eth_current;
327 debug ("Trying %s\n", eth_current->name);
329 if (eth_current->init(eth_current,bis) >= 0) {
330 eth_current->state = ETH_STATE_ACTIVE;
337 } while (old_current != eth_current);
347 eth_current->halt(eth_current);
349 eth_current->state = ETH_STATE_PASSIVE;
352 int eth_send(volatile void *packet, int length)
357 return eth_current->send(eth_current, packet, length);
365 return eth_current->recv(eth_current);
369 static void eth_save_packet(volatile void *packet, int length)
371 volatile char *p = packet;
374 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
377 if (PKTSIZE < length)
380 for (i = 0; i < length; i++)
381 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
383 eth_rcv_bufs[eth_rcv_last].length = length;
384 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
387 int eth_receive(volatile void *packet, int length)
389 volatile char *p = packet;
390 void *pp = push_packet;
393 if (eth_rcv_current == eth_rcv_last) {
394 push_packet = eth_save_packet;
398 if (eth_rcv_current == eth_rcv_last)
402 if (length < eth_rcv_bufs[eth_rcv_current].length)
405 length = eth_rcv_bufs[eth_rcv_current].length;
407 for (i = 0; i < length; i++)
408 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
410 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
413 #endif /* CONFIG_API */
415 void eth_try_another(int first_restart)
417 static struct eth_device *first_failed = NULL;
421 * Do not rotate between network interfaces when
422 * 'ethrotate' variable is set to 'no'.
424 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
425 (strcmp(ethrotate, "no") == 0))
432 first_failed = eth_current;
435 eth_current = eth_current->next;
437 #ifdef CONFIG_NET_MULTI
438 /* update current ethernet name */
440 char *act = getenv("ethact");
441 if (act == NULL || strcmp(act, eth_current->name) != 0)
442 setenv("ethact", eth_current->name);
446 if (first_failed == eth_current) {
451 #ifdef CONFIG_NET_MULTI
452 void eth_set_current(void)
455 struct eth_device* old_current;
457 if (!eth_current) /* XXX no current */
460 act = getenv("ethact");
462 old_current = eth_current;
464 if (strcmp(eth_current->name, act) == 0)
466 eth_current = eth_current->next;
467 } while (old_current != eth_current);
470 setenv("ethact", eth_current->name);
474 char *eth_get_name (void)
476 return (eth_current ? eth_current->name : "unknown");
478 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
480 extern int at91rm9200_miiphy_initialize(bd_t *bis);
481 extern int emac4xx_miiphy_initialize(bd_t *bis);
482 extern int mcf52x2_miiphy_initialize(bd_t *bis);
483 extern int ns7520_miiphy_initialize(bd_t *bis);
484 extern int davinci_eth_miiphy_initialize(bd_t *bis);
487 int eth_initialize(bd_t *bis)
489 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
493 #if defined(CONFIG_AT91RM9200)
494 at91rm9200_miiphy_initialize(bis);
496 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
497 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
498 emac4xx_miiphy_initialize(bis);
500 #if defined(CONFIG_MCF52x2)
501 mcf52x2_miiphy_initialize(bis);
503 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
504 ns7520_miiphy_initialize(bis);
506 #if defined(CONFIG_DRIVER_TI_EMAC)
507 davinci_eth_miiphy_initialize(bis);