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wdenkc6097192002-11-03 00:24:07 +00001/*
Detlev Zundelaba4b692010-03-31 17:56:08 +02002 * (C) Copyright 2001-2010
wdenkc6097192002-11-03 00:24:07 +00003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <net.h>
Marian Balakowiczd9785c12005-11-30 18:06:04 +010027#include <miiphy.h>
wdenkc6097192002-11-03 00:24:07 +000028
Mike Frysinger3f6e6992009-01-29 19:43:44 -050029void eth_parse_enetaddr(const char *addr, uchar *enetaddr)
30{
31 char *end;
32 int i;
33
34 for (i = 0; i < 6; ++i) {
35 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
36 if (addr)
37 addr = (*end) ? end + 1 : end;
38 }
39}
40
41int eth_getenv_enetaddr(char *name, uchar *enetaddr)
42{
43 eth_parse_enetaddr(getenv(name), enetaddr);
44 return is_valid_ether_addr(enetaddr);
45}
46
47int eth_setenv_enetaddr(char *name, const uchar *enetaddr)
48{
49 char buf[20];
50
51 sprintf(buf, "%pM", enetaddr);
52
53 return setenv(name, buf);
54}
Mike Frysinger86848a72009-07-15 21:31:28 -040055
56int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr)
57{
58 char enetvar[32];
59 sprintf(enetvar, index ? "eth%daddr" : "ethaddr", index);
60 return eth_getenv_enetaddr(enetvar, enetaddr);
61}
Mike Frysinger3f6e6992009-01-29 19:43:44 -050062
Ben Warrenecee9322010-04-26 11:11:46 -070063static int eth_mac_skip(int index)
64{
65 char enetvar[15];
66 char *skip_state;
67 sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
68 return ((skip_state = getenv(enetvar)) != NULL);
69}
70
Mike Frysinger6ac59c52009-11-03 11:35:42 -050071#ifdef CONFIG_NET_MULTI
wdenkc6097192002-11-03 00:24:07 +000072
Ben Warrendd354792008-06-23 22:57:27 -070073/*
74 * CPU and board-specific Ethernet initializations. Aliased function
75 * signals caller to move on
76 */
77static int __def_eth_init(bd_t *bis)
78{
79 return -1;
80}
Peter Tyserf9a109b2009-04-20 11:08:46 -050081int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
82int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
Ben Warrendd354792008-06-23 22:57:27 -070083
wdenk3a473b22004-01-03 00:43:19 +000084extern int mv6436x_eth_initialize(bd_t *);
85extern int mv6446x_eth_initialize(bd_t *);
wdenkc6097192002-11-03 00:24:07 +000086
Rafal Jaworowskif85b6072007-12-27 18:19:02 +010087#ifdef CONFIG_API
88extern void (*push_packet)(volatile void *, int);
89
90static struct {
91 uchar data[PKTSIZE];
92 int length;
93} eth_rcv_bufs[PKTBUFSRX];
94
95static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
96#endif
97
wdenkc6097192002-11-03 00:24:07 +000098static struct eth_device *eth_devices, *eth_current;
99
100struct eth_device *eth_get_dev(void)
101{
102 return eth_current;
103}
104
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200105struct eth_device *eth_get_dev_by_name(char *devname)
106{
107 struct eth_device *dev, *target_dev;
108
109 if (!eth_devices)
110 return NULL;
111
112 dev = eth_devices;
113 target_dev = NULL;
114 do {
115 if (strcmp(devname, dev->name) == 0) {
116 target_dev = dev;
117 break;
118 }
119 dev = dev->next;
120 } while (dev != eth_devices);
121
122 return target_dev;
123}
124
Andy Fleming9e569862009-02-11 15:07:24 -0600125struct eth_device *eth_get_dev_by_index(int index)
126{
127 struct eth_device *dev, *target_dev;
128 int idx = 0;
129
130 if (!eth_devices)
131 return NULL;
132
133 dev = eth_devices;
134 target_dev = NULL;
135 do {
136 if (idx == index) {
137 target_dev = dev;
138 break;
139 }
140 dev = dev->next;
141 idx++;
142 } while (dev != eth_devices);
143
144 return target_dev;
145}
146
wdenkc6097192002-11-03 00:24:07 +0000147int eth_get_dev_index (void)
148{
149 struct eth_device *dev;
150 int num = 0;
151
152 if (!eth_devices) {
153 return (-1);
154 }
155
156 for (dev = eth_devices; dev; dev = dev->next) {
157 if (dev == eth_current)
158 break;
159 ++num;
160 }
161
162 if (dev) {
163 return (num);
164 }
165
166 return (0);
167}
168
169int eth_register(struct eth_device* dev)
170{
171 struct eth_device *d;
172
173 if (!eth_devices) {
174 eth_current = eth_devices = dev;
wdenka3d991b2004-04-15 21:48:45 +0000175#ifdef CONFIG_NET_MULTI
176 /* update current ethernet name */
177 {
178 char *act = getenv("ethact");
179 if (act == NULL || strcmp(act, eth_current->name) != 0)
180 setenv("ethact", eth_current->name);
181 }
182#endif
wdenkc6097192002-11-03 00:24:07 +0000183 } else {
Detlev Zundelaba4b692010-03-31 17:56:08 +0200184 for (d=eth_devices; d->next!=eth_devices; d=d->next)
185 ;
wdenkc6097192002-11-03 00:24:07 +0000186 d->next = dev;
187 }
188
189 dev->state = ETH_STATE_INIT;
190 dev->next = eth_devices;
191
192 return 0;
193}
194
195int eth_initialize(bd_t *bis)
196{
Shinya Kuribayashi5ca2d092007-11-19 20:27:04 +0900197 unsigned char env_enetaddr[6];
Mike Frysinger3f6e6992009-01-29 19:43:44 -0500198 int eth_number = 0;
wdenkc6097192002-11-03 00:24:07 +0000199
200 eth_devices = NULL;
201 eth_current = NULL;
202
Heiko Schocherfad63402007-07-13 09:54:17 +0200203 show_boot_progress (64);
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500204#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
Marian Balakowiczd9785c12005-11-30 18:06:04 +0100205 miiphy_init();
206#endif
Ben Warrendd354792008-06-23 22:57:27 -0700207 /* Try board-specific initialization first. If it fails or isn't
208 * present, try the cpu-specific initialization */
209 if (board_eth_init(bis) < 0)
210 cpu_eth_init(bis);
Marian Balakowiczd9785c12005-11-30 18:06:04 +0100211
Stefan Roese1eac2a72006-11-29 15:42:37 +0100212#if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
wdenk3a473b22004-01-03 00:43:19 +0000213 mv6436x_eth_initialize(bis);
214#endif
Stefan Roese1eac2a72006-11-29 15:42:37 +0100215#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
wdenk3a473b22004-01-03 00:43:19 +0000216 mv6446x_eth_initialize(bis);
217#endif
wdenkc6097192002-11-03 00:24:07 +0000218 if (!eth_devices) {
219 puts ("No ethernet found.\n");
Heiko Schocherfad63402007-07-13 09:54:17 +0200220 show_boot_progress (-64);
wdenkc6097192002-11-03 00:24:07 +0000221 } else {
222 struct eth_device *dev = eth_devices;
223 char *ethprime = getenv ("ethprime");
224
Heiko Schocherfad63402007-07-13 09:54:17 +0200225 show_boot_progress (65);
wdenkc6097192002-11-03 00:24:07 +0000226 do {
227 if (eth_number)
228 puts (", ");
229
230 printf("%s", dev->name);
231
232 if (ethprime && strcmp (dev->name, ethprime) == 0) {
233 eth_current = dev;
234 puts (" [PRIME]");
235 }
236
Mike Frysinger86848a72009-07-15 21:31:28 -0400237 eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);
wdenkc6097192002-11-03 00:24:07 +0000238
239 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
240 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
241 memcmp(dev->enetaddr, env_enetaddr, 6))
242 {
wdenkbaac6072004-05-08 20:33:20 +0000243 printf ("\nWarning: %s MAC addresses don't match:\n",
244 dev->name);
Mike Frysinger3f6e6992009-01-29 19:43:44 -0500245 printf ("Address in SROM is %pM\n",
246 dev->enetaddr);
247 printf ("Address in environment is %pM\n",
248 env_enetaddr);
wdenkc6097192002-11-03 00:24:07 +0000249 }
250
251 memcpy(dev->enetaddr, env_enetaddr, 6);
252 }
Ben Warrenecee9322010-04-26 11:11:46 -0700253 if (dev->write_hwaddr &&
254 !eth_mac_skip(eth_number) &&
255 is_valid_ether_addr(dev->enetaddr)) {
256 dev->write_hwaddr(dev);
257 }
wdenkc6097192002-11-03 00:24:07 +0000258
259 eth_number++;
260 dev = dev->next;
261 } while(dev != eth_devices);
262
wdenka3d991b2004-04-15 21:48:45 +0000263#ifdef CONFIG_NET_MULTI
264 /* update current ethernet name */
265 if (eth_current) {
266 char *act = getenv("ethact");
267 if (act == NULL || strcmp(act, eth_current->name) != 0)
268 setenv("ethact", eth_current->name);
269 } else
270 setenv("ethact", NULL);
271#endif
272
wdenkc6097192002-11-03 00:24:07 +0000273 putc ('\n');
274 }
275
276 return eth_number;
277}
278
David Updegraff53a5c422007-06-11 10:41:07 -0500279#ifdef CONFIG_MCAST_TFTP
280/* Multicast.
281 * mcast_addr: multicast ipaddr from which multicast Mac is made
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200282 * join: 1=join, 0=leave.
David Updegraff53a5c422007-06-11 10:41:07 -0500283 */
284int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
285{
286 u8 mcast_mac[6];
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200287 if (!eth_current || !eth_current->mcast)
David Updegraff53a5c422007-06-11 10:41:07 -0500288 return -1;
289 mcast_mac[5] = htonl(mcast_ip) & 0xff;
290 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
291 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
292 mcast_mac[2] = 0x5e;
293 mcast_mac[1] = 0x0;
294 mcast_mac[0] = 0x1;
295 return eth_current->mcast(eth_current, mcast_mac, join);
296}
297
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200298/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
299 * and this is the ethernet-crc method needed for TSEC -- and perhaps
David Updegraff53a5c422007-06-11 10:41:07 -0500300 * some other adapter -- hash tables
301 */
302#define CRCPOLY_LE 0xedb88320
303u32 ether_crc (size_t len, unsigned char const *p)
304{
305 int i;
306 u32 crc;
307 crc = ~0;
308 while (len--) {
309 crc ^= *p++;
310 for (i = 0; i < 8; i++)
311 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
312 }
313 /* an reverse the bits, cuz of way they arrive -- last-first */
314 crc = (crc >> 16) | (crc << 16);
315 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
316 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
317 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
318 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
319 return crc;
320}
321
322#endif
323
wdenkc6097192002-11-03 00:24:07 +0000324
325int eth_init(bd_t *bis)
326{
Mike Frysinger86848a72009-07-15 21:31:28 -0400327 int eth_number;
328 struct eth_device *old_current, *dev;
wdenkc6097192002-11-03 00:24:07 +0000329
Stefan Roese6bc11382008-03-04 17:40:41 +0100330 if (!eth_current) {
331 puts ("No ethernet found.\n");
Upakul Barkakaty505be872007-11-29 12:16:13 +0530332 return -1;
Stefan Roese6bc11382008-03-04 17:40:41 +0100333 }
wdenkc6097192002-11-03 00:24:07 +0000334
Mike Frysinger86848a72009-07-15 21:31:28 -0400335 /* Sync environment with network devices */
336 eth_number = 0;
337 dev = eth_devices;
338 do {
339 uchar env_enetaddr[6];
340
341 if (eth_getenv_enetaddr_by_index(eth_number, env_enetaddr))
342 memcpy(dev->enetaddr, env_enetaddr, 6);
343
344 ++eth_number;
345 dev = dev->next;
346 } while (dev != eth_devices);
347
wdenkc6097192002-11-03 00:24:07 +0000348 old_current = eth_current;
349 do {
Robin Getz0ebf04c2009-07-23 03:01:03 -0400350 debug("Trying %s\n", eth_current->name);
wdenkc6097192002-11-03 00:24:07 +0000351
Ben Warren422b1a02008-01-09 18:15:53 -0500352 if (eth_current->init(eth_current,bis) >= 0) {
wdenkc6097192002-11-03 00:24:07 +0000353 eth_current->state = ETH_STATE_ACTIVE;
354
Upakul Barkakaty505be872007-11-29 12:16:13 +0530355 return 0;
wdenkc6097192002-11-03 00:24:07 +0000356 }
Robin Getz0ebf04c2009-07-23 03:01:03 -0400357 debug("FAIL\n");
wdenkc6097192002-11-03 00:24:07 +0000358
359 eth_try_another(0);
360 } while (old_current != eth_current);
361
Upakul Barkakaty505be872007-11-29 12:16:13 +0530362 return -1;
wdenkc6097192002-11-03 00:24:07 +0000363}
364
365void eth_halt(void)
366{
367 if (!eth_current)
368 return;
369
370 eth_current->halt(eth_current);
371
372 eth_current->state = ETH_STATE_PASSIVE;
373}
374
375int eth_send(volatile void *packet, int length)
376{
377 if (!eth_current)
378 return -1;
379
380 return eth_current->send(eth_current, packet, length);
381}
382
383int eth_rx(void)
384{
385 if (!eth_current)
386 return -1;
387
388 return eth_current->recv(eth_current);
389}
390
Rafal Jaworowskif85b6072007-12-27 18:19:02 +0100391#ifdef CONFIG_API
392static void eth_save_packet(volatile void *packet, int length)
393{
394 volatile char *p = packet;
395 int i;
396
397 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
398 return;
399
400 if (PKTSIZE < length)
401 return;
402
403 for (i = 0; i < length; i++)
404 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
405
406 eth_rcv_bufs[eth_rcv_last].length = length;
407 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
408}
409
410int eth_receive(volatile void *packet, int length)
411{
412 volatile char *p = packet;
413 void *pp = push_packet;
414 int i;
415
416 if (eth_rcv_current == eth_rcv_last) {
417 push_packet = eth_save_packet;
418 eth_rx();
419 push_packet = pp;
420
421 if (eth_rcv_current == eth_rcv_last)
422 return -1;
423 }
424
425 if (length < eth_rcv_bufs[eth_rcv_current].length)
426 return -1;
427
428 length = eth_rcv_bufs[eth_rcv_current].length;
429
430 for (i = 0; i < length; i++)
431 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
432
433 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
434 return length;
435}
436#endif /* CONFIG_API */
437
wdenkc6097192002-11-03 00:24:07 +0000438void eth_try_another(int first_restart)
439{
440 static struct eth_device *first_failed = NULL;
Matthias Fuchse1692572008-01-17 07:45:05 +0100441 char *ethrotate;
442
443 /*
444 * Do not rotate between network interfaces when
445 * 'ethrotate' variable is set to 'no'.
446 */
447 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
448 (strcmp(ethrotate, "no") == 0))
449 return;
wdenkc6097192002-11-03 00:24:07 +0000450
451 if (!eth_current)
452 return;
453
wdenkbaac6072004-05-08 20:33:20 +0000454 if (first_restart) {
wdenkc6097192002-11-03 00:24:07 +0000455 first_failed = eth_current;
456 }
457
458 eth_current = eth_current->next;
459
wdenka3d991b2004-04-15 21:48:45 +0000460#ifdef CONFIG_NET_MULTI
461 /* update current ethernet name */
462 {
463 char *act = getenv("ethact");
464 if (act == NULL || strcmp(act, eth_current->name) != 0)
465 setenv("ethact", eth_current->name);
466 }
467#endif
468
wdenkbaac6072004-05-08 20:33:20 +0000469 if (first_failed == eth_current) {
wdenkc6097192002-11-03 00:24:07 +0000470 NetRestartWrap = 1;
471 }
472}
473
wdenka3d991b2004-04-15 21:48:45 +0000474#ifdef CONFIG_NET_MULTI
475void eth_set_current(void)
476{
Heiko Schocherda954272009-04-28 08:36:11 +0200477 static char *act = NULL;
478 static int env_changed_id = 0;
wdenka3d991b2004-04-15 21:48:45 +0000479 struct eth_device* old_current;
Heiko Schocher2f70c492009-02-10 09:38:52 +0100480 int env_id;
wdenka3d991b2004-04-15 21:48:45 +0000481
482 if (!eth_current) /* XXX no current */
483 return;
484
Heiko Schocher2f70c492009-02-10 09:38:52 +0100485 env_id = get_env_id();
486 if ((act == NULL) || (env_changed_id != env_id)) {
487 act = getenv("ethact");
488 env_changed_id = env_id;
489 }
wdenka3d991b2004-04-15 21:48:45 +0000490 if (act != NULL) {
491 old_current = eth_current;
492 do {
493 if (strcmp(eth_current->name, act) == 0)
494 return;
495 eth_current = eth_current->next;
496 } while (old_current != eth_current);
497 }
498
499 setenv("ethact", eth_current->name);
500}
501#endif
502
wdenk5bb226e2003-11-17 21:14:37 +0000503char *eth_get_name (void)
504{
505 return (eth_current ? eth_current->name : "unknown");
506}
Mike Frysinger6ac59c52009-11-03 11:35:42 -0500507
508#else /* !CONFIG_NET_MULTI */
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200509
Ben Warren3bd0a872009-07-17 00:50:15 -0700510#warning Ethernet driver is deprecated. Please update to use CONFIG_NET_MULTI
511
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200512extern int at91rm9200_miiphy_initialize(bd_t *bis);
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200513extern int mcf52x2_miiphy_initialize(bd_t *bis);
514extern int ns7520_miiphy_initialize(bd_t *bis);
Sergey Kubushync74b2102007-08-10 20:26:18 +0200515
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200516
517int eth_initialize(bd_t *bis)
518{
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500519#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
Marian Balakowiczd9785c12005-11-30 18:06:04 +0100520 miiphy_init();
521#endif
522
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200523#if defined(CONFIG_AT91RM9200)
524 at91rm9200_miiphy_initialize(bis);
525#endif
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200526#if defined(CONFIG_MCF52x2)
527 mcf52x2_miiphy_initialize(bis);
528#endif
Wolfgang Denk25dbe982008-07-13 23:07:35 +0200529#if defined(CONFIG_DRIVER_NS7520_ETHERNET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200530 ns7520_miiphy_initialize(bis);
531#endif
532 return 0;
533}
wdenkc6097192002-11-03 00:24:07 +0000534#endif