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 mv6436x_eth_initialize(bd_t *);
43 extern int mv6446x_eth_initialize(bd_t *);
44 extern int ppc_4xx_eth_initialize(bd_t *);
47 extern void (*push_packet)(volatile void *, int);
52 } eth_rcv_bufs[PKTBUFSRX];
54 static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
57 static struct eth_device *eth_devices, *eth_current;
59 struct eth_device *eth_get_dev(void)
64 struct eth_device *eth_get_dev_by_name(char *devname)
66 struct eth_device *dev, *target_dev;
74 if (strcmp(devname, dev->name) == 0) {
79 } while (dev != eth_devices);
84 int eth_get_dev_index (void)
86 struct eth_device *dev;
93 for (dev = eth_devices; dev; dev = dev->next) {
94 if (dev == eth_current)
106 int eth_register(struct eth_device* dev)
108 struct eth_device *d;
111 eth_current = eth_devices = dev;
112 #ifdef CONFIG_NET_MULTI
113 /* update current ethernet name */
115 char *act = getenv("ethact");
116 if (act == NULL || strcmp(act, eth_current->name) != 0)
117 setenv("ethact", eth_current->name);
121 for (d=eth_devices; d->next!=eth_devices; d=d->next);
125 dev->state = ETH_STATE_INIT;
126 dev->next = eth_devices;
131 int eth_initialize(bd_t *bis)
134 unsigned char env_enetaddr[6];
135 int i, eth_number = 0;
141 show_boot_progress (64);
142 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
145 /* Try board-specific initialization first. If it fails or isn't
146 * present, try the cpu-specific initialization */
147 if (board_eth_init(bis) < 0)
150 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
151 mv6436x_eth_initialize(bis);
153 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
154 mv6446x_eth_initialize(bis);
156 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
157 ppc_4xx_eth_initialize(bis);
160 puts ("No ethernet found.\n");
161 show_boot_progress (-64);
163 struct eth_device *dev = eth_devices;
164 char *ethprime = getenv ("ethprime");
166 show_boot_progress (65);
171 printf("%s", dev->name);
173 if (ethprime && strcmp (dev->name, ethprime) == 0) {
178 sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
179 tmp = getenv (enetvar);
181 for (i=0; i<6; i++) {
182 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
184 tmp = (*end) ? end+1 : end;
187 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
188 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
189 memcmp(dev->enetaddr, env_enetaddr, 6))
191 printf ("\nWarning: %s MAC addresses don't match:\n",
193 printf ("Address in SROM is "
194 "%02X:%02X:%02X:%02X:%02X:%02X\n",
195 dev->enetaddr[0], dev->enetaddr[1],
196 dev->enetaddr[2], dev->enetaddr[3],
197 dev->enetaddr[4], dev->enetaddr[5]);
198 printf ("Address in environment is "
199 "%02X:%02X:%02X:%02X:%02X:%02X\n",
200 env_enetaddr[0], env_enetaddr[1],
201 env_enetaddr[2], env_enetaddr[3],
202 env_enetaddr[4], env_enetaddr[5]);
205 memcpy(dev->enetaddr, env_enetaddr, 6);
210 } while(dev != eth_devices);
212 #ifdef CONFIG_NET_MULTI
213 /* update current ethernet name */
215 char *act = getenv("ethact");
216 if (act == NULL || strcmp(act, eth_current->name) != 0)
217 setenv("ethact", eth_current->name);
219 setenv("ethact", NULL);
228 void eth_set_enetaddr(int num, char *addr) {
229 struct eth_device *dev;
230 unsigned char enetaddr[6];
234 debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
239 for (i=0; i<6; i++) {
240 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
242 addr = (*end) ? end+1 : end;
249 if (dev == eth_devices)
253 debug ( "Setting new HW address on %s\n"
254 "New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
256 enetaddr[0], enetaddr[1],
257 enetaddr[2], enetaddr[3],
258 enetaddr[4], enetaddr[5]);
260 memcpy(dev->enetaddr, enetaddr, 6);
262 #ifdef CONFIG_MCAST_TFTP
264 * mcast_addr: multicast ipaddr from which multicast Mac is made
265 * join: 1=join, 0=leave.
267 int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
270 if (!eth_current || !eth_current->mcast)
272 mcast_mac[5] = htonl(mcast_ip) & 0xff;
273 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
274 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
278 return eth_current->mcast(eth_current, mcast_mac, join);
281 /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
282 * and this is the ethernet-crc method needed for TSEC -- and perhaps
283 * some other adapter -- hash tables
285 #define CRCPOLY_LE 0xedb88320
286 u32 ether_crc (size_t len, unsigned char const *p)
293 for (i = 0; i < 8; i++)
294 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
296 /* an reverse the bits, cuz of way they arrive -- last-first */
297 crc = (crc >> 16) | (crc << 16);
298 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
299 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
300 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
301 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
308 int eth_init(bd_t *bis)
310 struct eth_device* old_current;
313 puts ("No ethernet found.\n");
317 old_current = eth_current;
319 debug ("Trying %s\n", eth_current->name);
321 if (eth_current->init(eth_current,bis) >= 0) {
322 eth_current->state = ETH_STATE_ACTIVE;
329 } while (old_current != eth_current);
339 eth_current->halt(eth_current);
341 eth_current->state = ETH_STATE_PASSIVE;
344 int eth_send(volatile void *packet, int length)
349 return eth_current->send(eth_current, packet, length);
357 return eth_current->recv(eth_current);
361 static void eth_save_packet(volatile void *packet, int length)
363 volatile char *p = packet;
366 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
369 if (PKTSIZE < length)
372 for (i = 0; i < length; i++)
373 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
375 eth_rcv_bufs[eth_rcv_last].length = length;
376 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
379 int eth_receive(volatile void *packet, int length)
381 volatile char *p = packet;
382 void *pp = push_packet;
385 if (eth_rcv_current == eth_rcv_last) {
386 push_packet = eth_save_packet;
390 if (eth_rcv_current == eth_rcv_last)
394 if (length < eth_rcv_bufs[eth_rcv_current].length)
397 length = eth_rcv_bufs[eth_rcv_current].length;
399 for (i = 0; i < length; i++)
400 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
402 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
405 #endif /* CONFIG_API */
407 void eth_try_another(int first_restart)
409 static struct eth_device *first_failed = NULL;
413 * Do not rotate between network interfaces when
414 * 'ethrotate' variable is set to 'no'.
416 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
417 (strcmp(ethrotate, "no") == 0))
424 first_failed = eth_current;
427 eth_current = eth_current->next;
429 #ifdef CONFIG_NET_MULTI
430 /* update current ethernet name */
432 char *act = getenv("ethact");
433 if (act == NULL || strcmp(act, eth_current->name) != 0)
434 setenv("ethact", eth_current->name);
438 if (first_failed == eth_current) {
443 #ifdef CONFIG_NET_MULTI
444 void eth_set_current(void)
447 struct eth_device* old_current;
449 if (!eth_current) /* XXX no current */
452 act = getenv("ethact");
454 old_current = eth_current;
456 if (strcmp(eth_current->name, act) == 0)
458 eth_current = eth_current->next;
459 } while (old_current != eth_current);
462 setenv("ethact", eth_current->name);
466 char *eth_get_name (void)
468 return (eth_current ? eth_current->name : "unknown");
470 #elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
472 extern int at91rm9200_miiphy_initialize(bd_t *bis);
473 extern int emac4xx_miiphy_initialize(bd_t *bis);
474 extern int mcf52x2_miiphy_initialize(bd_t *bis);
475 extern int ns7520_miiphy_initialize(bd_t *bis);
476 extern int davinci_eth_miiphy_initialize(bd_t *bis);
479 int eth_initialize(bd_t *bis)
481 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
485 #if defined(CONFIG_AT91RM9200)
486 at91rm9200_miiphy_initialize(bis);
488 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
489 && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
490 emac4xx_miiphy_initialize(bis);
492 #if defined(CONFIG_MCF52x2)
493 mcf52x2_miiphy_initialize(bis);
495 #if defined(CONFIG_DRIVER_NS7520_ETHERNET)
496 ns7520_miiphy_initialize(bis);
498 #if defined(CONFIG_DRIVER_TI_EMAC)
499 davinci_eth_miiphy_initialize(bis);