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,
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 e1000_initialize(bd_t*);
45 extern int eepro100_initialize(bd_t*);
46 extern int fec_initialize(bd_t*);
47 extern int mpc8220_fec_initialize(bd_t*);
48 extern int mv6436x_eth_initialize(bd_t *);
49 extern int mv6446x_eth_initialize(bd_t *);
50 extern int plb2800_eth_initialize(bd_t*);
51 extern int ppc_4xx_eth_initialize(bd_t *);
52 extern int scc_initialize(bd_t*);
53 extern int npe_initialize(bd_t *);
54 extern int uec_initialize(int);
57 extern void (*push_packet)(volatile void *, int);
62 } eth_rcv_bufs[PKTBUFSRX];
64 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
67 static struct eth_device *eth_devices, *eth_current;
69 struct eth_device *eth_get_dev(void)
74 struct eth_device *eth_get_dev_by_name(char *devname)
76 struct eth_device *dev, *target_dev;
84 if (strcmp(devname, dev->name) == 0) {
89 } while (dev != eth_devices);
94 int eth_get_dev_index (void)
96 struct eth_device *dev;
103 for (dev = eth_devices; dev; dev = dev->next) {
104 if (dev == eth_current)
116 int eth_register(struct eth_device* dev)
118 struct eth_device *d;
121 eth_current = eth_devices = dev;
122 #ifdef CONFIG_NET_MULTI
123 /* update current ethernet name */
125 char *act = getenv("ethact");
126 if (act == NULL || strcmp(act, eth_current->name) != 0)
127 setenv("ethact", eth_current->name);
131 for (d=eth_devices; d->next!=eth_devices; d=d->next);
135 dev->state = ETH_STATE_INIT;
136 dev->next = eth_devices;
141 int eth_initialize(bd_t *bis)
144 unsigned char env_enetaddr[6];
145 int i, eth_number = 0;
151 show_boot_progress (64);
152 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
155 /* Try board-specific initialization first. If it fails or isn't
156 * present, try the cpu-specific initialization */
157 if (board_eth_init(bis) < 0)
160 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
161 mv6436x_eth_initialize(bis);
163 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
164 mv6446x_eth_initialize(bis);
166 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
167 ppc_4xx_eth_initialize(bis);
169 #ifdef CONFIG_PLB2800_ETHER
170 plb2800_eth_initialize(bis);
175 #if defined(CONFIG_MPC8220_FEC)
176 mpc8220_fec_initialize(bis);
178 #if defined(CONFIG_UEC_ETH1)
181 #if defined(CONFIG_UEC_ETH2)
184 #if defined(CONFIG_UEC_ETH3)
187 #if defined(CONFIG_UEC_ETH4)
191 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
194 #if defined(CONFIG_AU1X00)
195 au1x00_enet_initialize(bis);
197 #if defined(CONFIG_IXP4XX_NPE)
201 e1000_initialize(bis);
203 #ifdef CONFIG_EEPRO100
204 eepro100_initialize(bis);
207 dc21x4x_initialize(bis);
210 puts ("No ethernet found.\n");
211 show_boot_progress (-64);
213 struct eth_device *dev = eth_devices;
214 char *ethprime = getenv ("ethprime");
216 show_boot_progress (65);
221 printf("%s", dev->name);
223 if (ethprime && strcmp (dev->name, ethprime) == 0) {
228 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
229 tmp = getenv (enetvar);
231 for (i=0; i<6; i++) {
232 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
234 tmp = (*end) ? end+1 : end;
237 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
238 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
239 memcmp(dev->enetaddr, env_enetaddr, 6))
241 printf ("\nWarning: %s MAC addresses don't match:\n",
243 printf ("Address in SROM is "
244 "%02X:%02X:%02X:%02X:%02X:%02X\n",
245 dev->enetaddr[0], dev->enetaddr[1],
246 dev->enetaddr[2], dev->enetaddr[3],
247 dev->enetaddr[4], dev->enetaddr[5]);
248 printf ("Address in environment is "
249 "%02X:%02X:%02X:%02X:%02X:%02X\n",
250 env_enetaddr[0], env_enetaddr[1],
251 env_enetaddr[2], env_enetaddr[3],
252 env_enetaddr[4], env_enetaddr[5]);
255 memcpy(dev->enetaddr, env_enetaddr, 6);
260 } while(dev != eth_devices);
262 #ifdef CONFIG_NET_MULTI
263 /* update current ethernet name */
265 char *act = getenv("ethact");
266 if (act == NULL || strcmp(act, eth_current->name) != 0)
267 setenv("ethact", eth_current->name);
269 setenv("ethact", NULL);
278 void eth_set_enetaddr(int num, char *addr) {
279 struct eth_device *dev;
280 unsigned char enetaddr[6];
284 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
289 for (i=0; i<6; i++) {
290 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
292 addr = (*end) ? end+1 : end;
299 if (dev == eth_devices)
303 debug ( "Setting new HW address on %s\n"
304 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
306 enetaddr[0], enetaddr[1],
307 enetaddr[2], enetaddr[3],
308 enetaddr[4], enetaddr[5]);
310 memcpy(dev->enetaddr, enetaddr, 6);
312 #ifdef CONFIG_MCAST_TFTP
314 * mcast_addr: multicast ipaddr from which multicast Mac is made
315 * join: 1=join, 0=leave.
317 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
320 if (!eth_current || !eth_current->mcast)
322 mcast_mac[5] = htonl(mcast_ip) & 0xff;
323 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
324 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
328 return eth_current->mcast(eth_current, mcast_mac, join);
331 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
332 * and this is the ethernet-crc method needed for TSEC -- and perhaps
333 * some other adapter -- hash tables
335 #define CRCPOLY_LE 0xedb88320
336 u32 ether_crc (size_t len, unsigned char const *p)
343 for (i = 0; i < 8; i++)
344 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
346 /* an reverse the bits, cuz of way they arrive -- last-first */
347 crc = (crc >> 16) | (crc << 16);
348 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
349 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
350 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
351 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
358 int eth_init(bd_t *bis)
360 struct eth_device* old_current;
363 puts ("No ethernet found.\n");
367 old_current = eth_current;
369 debug ("Trying %s\n", eth_current->name);
371 if (eth_current->init(eth_current,bis) >= 0) {
372 eth_current->state = ETH_STATE_ACTIVE;
379 } while (old_current != eth_current);
389 eth_current->halt(eth_current);
391 eth_current->state = ETH_STATE_PASSIVE;
394 int eth_send(volatile void *packet, int length)
399 return eth_current->send(eth_current, packet, length);
407 return eth_current->recv(eth_current);
411 static void eth_save_packet(volatile void *packet, int length)
413 volatile char *p = packet;
416 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
419 if (PKTSIZE < length)
422 for (i = 0; i < length; i++)
423 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
425 eth_rcv_bufs[eth_rcv_last].length = length;
426 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
429 int eth_receive(volatile void *packet, int length)
431 volatile char *p = packet;
432 void *pp = push_packet;
435 if (eth_rcv_current == eth_rcv_last) {
436 push_packet = eth_save_packet;
440 if (eth_rcv_current == eth_rcv_last)
444 if (length < eth_rcv_bufs[eth_rcv_current].length)
447 length = eth_rcv_bufs[eth_rcv_current].length;
449 for (i = 0; i < length; i++)
450 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
452 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
455 #endif /* CONFIG_API */
457 void eth_try_another(int first_restart)
459 static struct eth_device *first_failed = NULL;
463 * Do not rotate between network interfaces when
464 * 'ethrotate' variable is set to 'no'.
466 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
467 (strcmp(ethrotate, "no") == 0))
474 first_failed = eth_current;
477 eth_current = eth_current->next;
479 #ifdef CONFIG_NET_MULTI
480 /* update current ethernet name */
482 char *act = getenv("ethact");
483 if (act == NULL || strcmp(act, eth_current->name) != 0)
484 setenv("ethact", eth_current->name);
488 if (first_failed == eth_current) {
493 #ifdef CONFIG_NET_MULTI
494 void eth_set_current(void)
497 struct eth_device* old_current;
499 if (!eth_current) /* XXX no current */
502 act = getenv("ethact");
504 old_current = eth_current;
506 if (strcmp(eth_current->name, act) == 0)
508 eth_current = eth_current->next;
509 } while (old_current != eth_current);
512 setenv("ethact", eth_current->name);
516 char *eth_get_name (void)
518 return (eth_current ? eth_current->name : "unknown");
520 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
522 extern int at91rm9200_miiphy_initialize(bd_t *bis);
523 extern int emac4xx_miiphy_initialize(bd_t *bis);
524 extern int mcf52x2_miiphy_initialize(bd_t *bis);
525 extern int ns7520_miiphy_initialize(bd_t *bis);
526 extern int davinci_eth_miiphy_initialize(bd_t *bis);
529 int eth_initialize(bd_t *bis)
531 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
535 #if defined(CONFIG_AT91RM9200)
536 at91rm9200_miiphy_initialize(bis);
538 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
539 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
540 emac4xx_miiphy_initialize(bis);
542 #if defined(CONFIG_MCF52x2)
543 mcf52x2_miiphy_initialize(bis);
545 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
546 ns7520_miiphy_initialize(bis);
548 #if defined(CONFIG_DRIVER_TI_EMAC)
549 davinci_eth_miiphy_initialize(bis);