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")));
43 extern int gt6426x_eth_initialize(bd_t *bis);
46 extern int au1x00_enet_initialize(bd_t*);
47 extern int dc21x4x_initialize(bd_t*);
48 extern int e1000_initialize(bd_t*);
49 extern int eepro100_initialize(bd_t*);
50 extern int eth_3com_initialize(bd_t*);
51 extern int fec_initialize(bd_t*);
52 extern int inca_switch_initialize(bd_t*);
53 extern int mpc5xxx_fec_initialize(bd_t*);
54 extern int mpc512x_fec_initialize(bd_t*);
55 extern int mpc8220_fec_initialize(bd_t*);
56 extern int mv6436x_eth_initialize(bd_t *);
57 extern int mv6446x_eth_initialize(bd_t *);
58 extern int pcnet_initialize(bd_t*);
59 extern int plb2800_eth_initialize(bd_t*);
60 extern int ppc_4xx_eth_initialize(bd_t *);
61 extern int scc_initialize(bd_t*);
62 extern int npe_initialize(bd_t *);
63 extern int uec_initialize(int);
66 extern void (*push_packet)(volatile void *, int);
71 } eth_rcv_bufs[PKTBUFSRX];
73 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
76 static struct eth_device *eth_devices, *eth_current;
78 struct eth_device *eth_get_dev(void)
83 struct eth_device *eth_get_dev_by_name(char *devname)
85 struct eth_device *dev, *target_dev;
93 if (strcmp(devname, dev->name) == 0) {
98 } while (dev != eth_devices);
103 int eth_get_dev_index (void)
105 struct eth_device *dev;
112 for (dev = eth_devices; dev; dev = dev->next) {
113 if (dev == eth_current)
125 int eth_register(struct eth_device* dev)
127 struct eth_device *d;
130 eth_current = eth_devices = dev;
131 #ifdef CONFIG_NET_MULTI
132 /* update current ethernet name */
134 char *act = getenv("ethact");
135 if (act == NULL || strcmp(act, eth_current->name) != 0)
136 setenv("ethact", eth_current->name);
140 for (d=eth_devices; d->next!=eth_devices; d=d->next);
144 dev->state = ETH_STATE_INIT;
145 dev->next = eth_devices;
150 int eth_initialize(bd_t *bis)
153 unsigned char env_enetaddr[6];
154 int i, eth_number = 0;
160 show_boot_progress (64);
161 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
164 /* Try board-specific initialization first. If it fails or isn't
165 * present, try the cpu-specific initialization */
166 if (board_eth_init(bis) < 0)
169 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
170 mv6436x_eth_initialize(bis);
172 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
173 mv6446x_eth_initialize(bis);
175 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
176 ppc_4xx_eth_initialize(bis);
178 #ifdef CONFIG_INCA_IP_SWITCH
179 inca_switch_initialize(bis);
181 #ifdef CONFIG_PLB2800_ETHER
182 plb2800_eth_initialize(bis);
187 #if defined(CONFIG_MPC5xxx_FEC)
188 mpc5xxx_fec_initialize(bis);
190 #if defined(CONFIG_MPC512x_FEC)
191 mpc512x_fec_initialize (bis);
193 #if defined(CONFIG_MPC8220_FEC)
194 mpc8220_fec_initialize(bis);
196 #if defined(CONFIG_UEC_ETH1)
199 #if defined(CONFIG_UEC_ETH2)
202 #if defined(CONFIG_UEC_ETH3)
205 #if defined(CONFIG_UEC_ETH4)
209 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
212 #if defined(CONFIG_AU1X00)
213 au1x00_enet_initialize(bis);
215 #if defined(CONFIG_IXP4XX_NPE)
219 e1000_initialize(bis);
221 #ifdef CONFIG_EEPRO100
222 eepro100_initialize(bis);
225 dc21x4x_initialize(bis);
228 eth_3com_initialize(bis);
231 pcnet_initialize(bis);
234 gt6426x_eth_initialize(bis);
237 puts ("No ethernet found.\n");
238 show_boot_progress (-64);
240 struct eth_device *dev = eth_devices;
241 char *ethprime = getenv ("ethprime");
243 show_boot_progress (65);
248 printf("%s", dev->name);
250 if (ethprime && strcmp (dev->name, ethprime) == 0) {
255 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
256 tmp = getenv (enetvar);
258 for (i=0; i<6; i++) {
259 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
261 tmp = (*end) ? end+1 : end;
264 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
265 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
266 memcmp(dev->enetaddr, env_enetaddr, 6))
268 printf ("\nWarning: %s MAC addresses don't match:\n",
270 printf ("Address in SROM is "
271 "%02X:%02X:%02X:%02X:%02X:%02X\n",
272 dev->enetaddr[0], dev->enetaddr[1],
273 dev->enetaddr[2], dev->enetaddr[3],
274 dev->enetaddr[4], dev->enetaddr[5]);
275 printf ("Address in environment is "
276 "%02X:%02X:%02X:%02X:%02X:%02X\n",
277 env_enetaddr[0], env_enetaddr[1],
278 env_enetaddr[2], env_enetaddr[3],
279 env_enetaddr[4], env_enetaddr[5]);
282 memcpy(dev->enetaddr, env_enetaddr, 6);
287 } while(dev != eth_devices);
289 #ifdef CONFIG_NET_MULTI
290 /* update current ethernet name */
292 char *act = getenv("ethact");
293 if (act == NULL || strcmp(act, eth_current->name) != 0)
294 setenv("ethact", eth_current->name);
296 setenv("ethact", NULL);
305 void eth_set_enetaddr(int num, char *addr) {
306 struct eth_device *dev;
307 unsigned char enetaddr[6];
311 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
316 for (i=0; i<6; i++) {
317 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
319 addr = (*end) ? end+1 : end;
326 if (dev == eth_devices)
330 debug ( "Setting new HW address on %s\n"
331 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
333 enetaddr[0], enetaddr[1],
334 enetaddr[2], enetaddr[3],
335 enetaddr[4], enetaddr[5]);
337 memcpy(dev->enetaddr, enetaddr, 6);
339 #ifdef CONFIG_MCAST_TFTP
341 * mcast_addr: multicast ipaddr from which multicast Mac is made
342 * join: 1=join, 0=leave.
344 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
347 if (!eth_current || !eth_current->mcast)
349 mcast_mac[5] = htonl(mcast_ip) & 0xff;
350 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
351 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
355 return eth_current->mcast(eth_current, mcast_mac, join);
358 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
359 * and this is the ethernet-crc method needed for TSEC -- and perhaps
360 * some other adapter -- hash tables
362 #define CRCPOLY_LE 0xedb88320
363 u32 ether_crc (size_t len, unsigned char const *p)
370 for (i = 0; i < 8; i++)
371 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
373 /* an reverse the bits, cuz of way they arrive -- last-first */
374 crc = (crc >> 16) | (crc << 16);
375 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
376 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
377 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
378 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
385 int eth_init(bd_t *bis)
387 struct eth_device* old_current;
390 puts ("No ethernet found.\n");
394 old_current = eth_current;
396 debug ("Trying %s\n", eth_current->name);
398 if (eth_current->init(eth_current,bis) >= 0) {
399 eth_current->state = ETH_STATE_ACTIVE;
406 } while (old_current != eth_current);
416 eth_current->halt(eth_current);
418 eth_current->state = ETH_STATE_PASSIVE;
421 int eth_send(volatile void *packet, int length)
426 return eth_current->send(eth_current, packet, length);
434 return eth_current->recv(eth_current);
438 static void eth_save_packet(volatile void *packet, int length)
440 volatile char *p = packet;
443 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
446 if (PKTSIZE < length)
449 for (i = 0; i < length; i++)
450 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
452 eth_rcv_bufs[eth_rcv_last].length = length;
453 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
456 int eth_receive(volatile void *packet, int length)
458 volatile char *p = packet;
459 void *pp = push_packet;
462 if (eth_rcv_current == eth_rcv_last) {
463 push_packet = eth_save_packet;
467 if (eth_rcv_current == eth_rcv_last)
471 if (length < eth_rcv_bufs[eth_rcv_current].length)
474 length = eth_rcv_bufs[eth_rcv_current].length;
476 for (i = 0; i < length; i++)
477 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
479 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
482 #endif /* CONFIG_API */
484 void eth_try_another(int first_restart)
486 static struct eth_device *first_failed = NULL;
490 * Do not rotate between network interfaces when
491 * 'ethrotate' variable is set to 'no'.
493 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
494 (strcmp(ethrotate, "no") == 0))
501 first_failed = eth_current;
504 eth_current = eth_current->next;
506 #ifdef CONFIG_NET_MULTI
507 /* update current ethernet name */
509 char *act = getenv("ethact");
510 if (act == NULL || strcmp(act, eth_current->name) != 0)
511 setenv("ethact", eth_current->name);
515 if (first_failed == eth_current) {
520 #ifdef CONFIG_NET_MULTI
521 void eth_set_current(void)
524 struct eth_device* old_current;
526 if (!eth_current) /* XXX no current */
529 act = getenv("ethact");
531 old_current = eth_current;
533 if (strcmp(eth_current->name, act) == 0)
535 eth_current = eth_current->next;
536 } while (old_current != eth_current);
539 setenv("ethact", eth_current->name);
543 char *eth_get_name (void)
545 return (eth_current ? eth_current->name : "unknown");
547 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
549 extern int at91rm9200_miiphy_initialize(bd_t *bis);
550 extern int emac4xx_miiphy_initialize(bd_t *bis);
551 extern int mcf52x2_miiphy_initialize(bd_t *bis);
552 extern int ns7520_miiphy_initialize(bd_t *bis);
553 extern int davinci_eth_miiphy_initialize(bd_t *bis);
556 int eth_initialize(bd_t *bis)
558 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
562 #if defined(CONFIG_AT91RM9200)
563 at91rm9200_miiphy_initialize(bis);
565 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
566 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
567 emac4xx_miiphy_initialize(bis);
569 #if defined(CONFIG_MCF52x2)
570 mcf52x2_miiphy_initialize(bis);
572 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
573 ns7520_miiphy_initialize(bis);
575 #if defined(CONFIG_DRIVER_TI_EMAC)
576 davinci_eth_miiphy_initialize(bis);