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 eepro100_initialize(bd_t*);
45 extern int fec_initialize(bd_t*);
46 extern int mpc8220_fec_initialize(bd_t*);
47 extern int mv6436x_eth_initialize(bd_t *);
48 extern int mv6446x_eth_initialize(bd_t *);
49 extern int ppc_4xx_eth_initialize(bd_t *);
50 extern int scc_initialize(bd_t*);
51 extern int npe_initialize(bd_t *);
52 extern int uec_initialize(int);
55 extern void (*push_packet)(volatile void *, int);
60 } eth_rcv_bufs[PKTBUFSRX];
62 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
65 static struct eth_device *eth_devices, *eth_current;
67 struct eth_device *eth_get_dev(void)
72 struct eth_device *eth_get_dev_by_name(char *devname)
74 struct eth_device *dev, *target_dev;
82 if (strcmp(devname, dev->name) == 0) {
87 } while (dev != eth_devices);
92 int eth_get_dev_index (void)
94 struct eth_device *dev;
101 for (dev = eth_devices; dev; dev = dev->next) {
102 if (dev == eth_current)
114 int eth_register(struct eth_device* dev)
116 struct eth_device *d;
119 eth_current = eth_devices = dev;
120 #ifdef CONFIG_NET_MULTI
121 /* update current ethernet name */
123 char *act = getenv("ethact");
124 if (act == NULL || strcmp(act, eth_current->name) != 0)
125 setenv("ethact", eth_current->name);
129 for (d=eth_devices; d->next!=eth_devices; d=d->next);
133 dev->state = ETH_STATE_INIT;
134 dev->next = eth_devices;
139 int eth_initialize(bd_t *bis)
142 unsigned char env_enetaddr[6];
143 int i, eth_number = 0;
149 show_boot_progress (64);
150 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
153 /* Try board-specific initialization first. If it fails or isn't
154 * present, try the cpu-specific initialization */
155 if (board_eth_init(bis) < 0)
158 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
159 mv6436x_eth_initialize(bis);
161 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
162 mv6446x_eth_initialize(bis);
164 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
165 ppc_4xx_eth_initialize(bis);
170 #if defined(CONFIG_MPC8220_FEC)
171 mpc8220_fec_initialize(bis);
173 #if defined(CONFIG_UEC_ETH1)
176 #if defined(CONFIG_UEC_ETH2)
179 #if defined(CONFIG_UEC_ETH3)
182 #if defined(CONFIG_UEC_ETH4)
186 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
189 #if defined(CONFIG_AU1X00)
190 au1x00_enet_initialize(bis);
192 #if defined(CONFIG_IXP4XX_NPE)
195 #ifdef CONFIG_EEPRO100
196 eepro100_initialize(bis);
199 dc21x4x_initialize(bis);
202 puts ("No ethernet found.\n");
203 show_boot_progress (-64);
205 struct eth_device *dev = eth_devices;
206 char *ethprime = getenv ("ethprime");
208 show_boot_progress (65);
213 printf("%s", dev->name);
215 if (ethprime && strcmp (dev->name, ethprime) == 0) {
220 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
221 tmp = getenv (enetvar);
223 for (i=0; i<6; i++) {
224 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
226 tmp = (*end) ? end+1 : end;
229 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
230 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
231 memcmp(dev->enetaddr, env_enetaddr, 6))
233 printf ("\nWarning: %s MAC addresses don't match:\n",
235 printf ("Address in SROM is "
236 "%02X:%02X:%02X:%02X:%02X:%02X\n",
237 dev->enetaddr[0], dev->enetaddr[1],
238 dev->enetaddr[2], dev->enetaddr[3],
239 dev->enetaddr[4], dev->enetaddr[5]);
240 printf ("Address in environment is "
241 "%02X:%02X:%02X:%02X:%02X:%02X\n",
242 env_enetaddr[0], env_enetaddr[1],
243 env_enetaddr[2], env_enetaddr[3],
244 env_enetaddr[4], env_enetaddr[5]);
247 memcpy(dev->enetaddr, env_enetaddr, 6);
252 } while(dev != eth_devices);
254 #ifdef CONFIG_NET_MULTI
255 /* update current ethernet name */
257 char *act = getenv("ethact");
258 if (act == NULL || strcmp(act, eth_current->name) != 0)
259 setenv("ethact", eth_current->name);
261 setenv("ethact", NULL);
270 void eth_set_enetaddr(int num, char *addr) {
271 struct eth_device *dev;
272 unsigned char enetaddr[6];
276 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
281 for (i=0; i<6; i++) {
282 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
284 addr = (*end) ? end+1 : end;
291 if (dev == eth_devices)
295 debug ( "Setting new HW address on %s\n"
296 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
298 enetaddr[0], enetaddr[1],
299 enetaddr[2], enetaddr[3],
300 enetaddr[4], enetaddr[5]);
302 memcpy(dev->enetaddr, enetaddr, 6);
304 #ifdef CONFIG_MCAST_TFTP
306 * mcast_addr: multicast ipaddr from which multicast Mac is made
307 * join: 1=join, 0=leave.
309 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
312 if (!eth_current || !eth_current->mcast)
314 mcast_mac[5] = htonl(mcast_ip) & 0xff;
315 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
316 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
320 return eth_current->mcast(eth_current, mcast_mac, join);
323 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
324 * and this is the ethernet-crc method needed for TSEC -- and perhaps
325 * some other adapter -- hash tables
327 #define CRCPOLY_LE 0xedb88320
328 u32 ether_crc (size_t len, unsigned char const *p)
335 for (i = 0; i < 8; i++)
336 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
338 /* an reverse the bits, cuz of way they arrive -- last-first */
339 crc = (crc >> 16) | (crc << 16);
340 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
341 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
342 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
343 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
350 int eth_init(bd_t *bis)
352 struct eth_device* old_current;
355 puts ("No ethernet found.\n");
359 old_current = eth_current;
361 debug ("Trying %s\n", eth_current->name);
363 if (eth_current->init(eth_current,bis) >= 0) {
364 eth_current->state = ETH_STATE_ACTIVE;
371 } while (old_current != eth_current);
381 eth_current->halt(eth_current);
383 eth_current->state = ETH_STATE_PASSIVE;
386 int eth_send(volatile void *packet, int length)
391 return eth_current->send(eth_current, packet, length);
399 return eth_current->recv(eth_current);
403 static void eth_save_packet(volatile void *packet, int length)
405 volatile char *p = packet;
408 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
411 if (PKTSIZE < length)
414 for (i = 0; i < length; i++)
415 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
417 eth_rcv_bufs[eth_rcv_last].length = length;
418 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
421 int eth_receive(volatile void *packet, int length)
423 volatile char *p = packet;
424 void *pp = push_packet;
427 if (eth_rcv_current == eth_rcv_last) {
428 push_packet = eth_save_packet;
432 if (eth_rcv_current == eth_rcv_last)
436 if (length < eth_rcv_bufs[eth_rcv_current].length)
439 length = eth_rcv_bufs[eth_rcv_current].length;
441 for (i = 0; i < length; i++)
442 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
444 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
447 #endif /* CONFIG_API */
449 void eth_try_another(int first_restart)
451 static struct eth_device *first_failed = NULL;
455 * Do not rotate between network interfaces when
456 * 'ethrotate' variable is set to 'no'.
458 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
459 (strcmp(ethrotate, "no") == 0))
466 first_failed = eth_current;
469 eth_current = eth_current->next;
471 #ifdef CONFIG_NET_MULTI
472 /* update current ethernet name */
474 char *act = getenv("ethact");
475 if (act == NULL || strcmp(act, eth_current->name) != 0)
476 setenv("ethact", eth_current->name);
480 if (first_failed == eth_current) {
485 #ifdef CONFIG_NET_MULTI
486 void eth_set_current(void)
489 struct eth_device* old_current;
491 if (!eth_current) /* XXX no current */
494 act = getenv("ethact");
496 old_current = eth_current;
498 if (strcmp(eth_current->name, act) == 0)
500 eth_current = eth_current->next;
501 } while (old_current != eth_current);
504 setenv("ethact", eth_current->name);
508 char *eth_get_name (void)
510 return (eth_current ? eth_current->name : "unknown");
512 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
514 extern int at91rm9200_miiphy_initialize(bd_t *bis);
515 extern int emac4xx_miiphy_initialize(bd_t *bis);
516 extern int mcf52x2_miiphy_initialize(bd_t *bis);
517 extern int ns7520_miiphy_initialize(bd_t *bis);
518 extern int davinci_eth_miiphy_initialize(bd_t *bis);
521 int eth_initialize(bd_t *bis)
523 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
527 #if defined(CONFIG_AT91RM9200)
528 at91rm9200_miiphy_initialize(bis);
530 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
531 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
532 emac4xx_miiphy_initialize(bis);
534 #if defined(CONFIG_MCF52x2)
535 mcf52x2_miiphy_initialize(bis);
537 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
538 ns7520_miiphy_initialize(bis);
540 #if defined(CONFIG_DRIVER_TI_EMAC)
541 davinci_eth_miiphy_initialize(bis);