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 mv6436x_eth_initialize(bd_t *);
43 extern int mv6446x_eth_initialize(bd_t *);
46 extern void (*push_packet)(volatile void *, int);
51 } eth_rcv_bufs[PKTBUFSRX];
53 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
56 static struct eth_device *eth_devices, *eth_current;
58 struct eth_device *eth_get_dev(void)
63 struct eth_device *eth_get_dev_by_name(char *devname)
65 struct eth_device *dev, *target_dev;
73 if (strcmp(devname, dev->name) == 0) {
78 } while (dev != eth_devices);
83 int eth_get_dev_index (void)
85 struct eth_device *dev;
92 for (dev = eth_devices; dev; dev = dev->next) {
93 if (dev == eth_current)
105 int eth_register(struct eth_device* dev)
107 struct eth_device *d;
110 eth_current = eth_devices = dev;
111 #ifdef CONFIG_NET_MULTI
112 /* update current ethernet name */
114 char *act = getenv("ethact");
115 if (act == NULL || strcmp(act, eth_current->name) != 0)
116 setenv("ethact", eth_current->name);
120 for (d=eth_devices; d->next!=eth_devices; d=d->next);
124 dev->state = ETH_STATE_INIT;
125 dev->next = eth_devices;
130 int eth_initialize(bd_t *bis)
133 unsigned char env_enetaddr[6];
134 int i, eth_number = 0;
140 show_boot_progress (64);
141 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
144 /* Try board-specific initialization first. If it fails or isn't
145 * present, try the cpu-specific initialization */
146 if (board_eth_init(bis) < 0)
149 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
150 mv6436x_eth_initialize(bis);
152 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
153 mv6446x_eth_initialize(bis);
156 puts ("No ethernet found.\n");
157 show_boot_progress (-64);
159 struct eth_device *dev = eth_devices;
160 char *ethprime = getenv ("ethprime");
162 show_boot_progress (65);
167 printf("%s", dev->name);
169 if (ethprime && strcmp (dev->name, ethprime) == 0) {
174 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
175 tmp = getenv (enetvar);
177 for (i=0; i<6; i++) {
178 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
180 tmp = (*end) ? end+1 : end;
183 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
184 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
185 memcmp(dev->enetaddr, env_enetaddr, 6))
187 printf ("\nWarning: %s MAC addresses don't match:\n",
189 printf ("Address in SROM is "
190 "%02X:%02X:%02X:%02X:%02X:%02X\n",
191 dev->enetaddr[0], dev->enetaddr[1],
192 dev->enetaddr[2], dev->enetaddr[3],
193 dev->enetaddr[4], dev->enetaddr[5]);
194 printf ("Address in environment is "
195 "%02X:%02X:%02X:%02X:%02X:%02X\n",
196 env_enetaddr[0], env_enetaddr[1],
197 env_enetaddr[2], env_enetaddr[3],
198 env_enetaddr[4], env_enetaddr[5]);
201 memcpy(dev->enetaddr, env_enetaddr, 6);
206 } while(dev != eth_devices);
208 #ifdef CONFIG_NET_MULTI
209 /* update current ethernet name */
211 char *act = getenv("ethact");
212 if (act == NULL || strcmp(act, eth_current->name) != 0)
213 setenv("ethact", eth_current->name);
215 setenv("ethact", NULL);
224 void eth_set_enetaddr(int num, char *addr) {
225 struct eth_device *dev;
226 unsigned char enetaddr[6];
230 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
235 for (i=0; i<6; i++) {
236 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
238 addr = (*end) ? end+1 : end;
245 if (dev == eth_devices)
249 debug ( "Setting new HW address on %s\n"
250 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
252 enetaddr[0], enetaddr[1],
253 enetaddr[2], enetaddr[3],
254 enetaddr[4], enetaddr[5]);
256 memcpy(dev->enetaddr, enetaddr, 6);
258 #ifdef CONFIG_MCAST_TFTP
260 * mcast_addr: multicast ipaddr from which multicast Mac is made
261 * join: 1=join, 0=leave.
263 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
266 if (!eth_current || !eth_current->mcast)
268 mcast_mac[5] = htonl(mcast_ip) & 0xff;
269 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
270 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
274 return eth_current->mcast(eth_current, mcast_mac, join);
277 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
278 * and this is the ethernet-crc method needed for TSEC -- and perhaps
279 * some other adapter -- hash tables
281 #define CRCPOLY_LE 0xedb88320
282 u32 ether_crc (size_t len, unsigned char const *p)
289 for (i = 0; i < 8; i++)
290 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
292 /* an reverse the bits, cuz of way they arrive -- last-first */
293 crc = (crc >> 16) | (crc << 16);
294 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
295 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
296 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
297 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
304 int eth_init(bd_t *bis)
306 struct eth_device* old_current;
309 puts ("No ethernet found.\n");
313 old_current = eth_current;
315 debug ("Trying %s\n", eth_current->name);
317 if (eth_current->init(eth_current,bis) >= 0) {
318 eth_current->state = ETH_STATE_ACTIVE;
325 } while (old_current != eth_current);
335 eth_current->halt(eth_current);
337 eth_current->state = ETH_STATE_PASSIVE;
340 int eth_send(volatile void *packet, int length)
345 return eth_current->send(eth_current, packet, length);
353 return eth_current->recv(eth_current);
357 static void eth_save_packet(volatile void *packet, int length)
359 volatile char *p = packet;
362 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
365 if (PKTSIZE < length)
368 for (i = 0; i < length; i++)
369 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
371 eth_rcv_bufs[eth_rcv_last].length = length;
372 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
375 int eth_receive(volatile void *packet, int length)
377 volatile char *p = packet;
378 void *pp = push_packet;
381 if (eth_rcv_current == eth_rcv_last) {
382 push_packet = eth_save_packet;
386 if (eth_rcv_current == eth_rcv_last)
390 if (length < eth_rcv_bufs[eth_rcv_current].length)
393 length = eth_rcv_bufs[eth_rcv_current].length;
395 for (i = 0; i < length; i++)
396 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
398 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
401 #endif /* CONFIG_API */
403 void eth_try_another(int first_restart)
405 static struct eth_device *first_failed = NULL;
409 * Do not rotate between network interfaces when
410 * 'ethrotate' variable is set to 'no'.
412 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
413 (strcmp(ethrotate, "no") == 0))
420 first_failed = eth_current;
423 eth_current = eth_current->next;
425 #ifdef CONFIG_NET_MULTI
426 /* update current ethernet name */
428 char *act = getenv("ethact");
429 if (act == NULL || strcmp(act, eth_current->name) != 0)
430 setenv("ethact", eth_current->name);
434 if (first_failed == eth_current) {
439 #ifdef CONFIG_NET_MULTI
440 void eth_set_current(void)
443 struct eth_device* old_current;
445 if (!eth_current) /* XXX no current */
448 act = getenv("ethact");
450 old_current = eth_current;
452 if (strcmp(eth_current->name, act) == 0)
454 eth_current = eth_current->next;
455 } while (old_current != eth_current);
458 setenv("ethact", eth_current->name);
462 char *eth_get_name (void)
464 return (eth_current ? eth_current->name : "unknown");
466 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
468 extern int at91rm9200_miiphy_initialize(bd_t *bis);
469 extern int emac4xx_miiphy_initialize(bd_t *bis);
470 extern int mcf52x2_miiphy_initialize(bd_t *bis);
471 extern int ns7520_miiphy_initialize(bd_t *bis);
472 extern int davinci_eth_miiphy_initialize(bd_t *bis);
475 int eth_initialize(bd_t *bis)
477 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
481 #if defined(CONFIG_AT91RM9200)
482 at91rm9200_miiphy_initialize(bis);
484 #if defined(CONFIG_PPC4xx_EMAC)
485 emac4xx_miiphy_initialize(bis);
487 #if defined(CONFIG_MCF52x2)
488 mcf52x2_miiphy_initialize(bis);
490 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
491 ns7520_miiphy_initialize(bis);
493 #if defined(CONFIG_DRIVER_TI_EMAC)
494 davinci_eth_miiphy_initialize(bis);