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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
Wolfgang Denk9c00b2f2010-06-20 12:30:22 +020063#ifdef CONFIG_NET_MULTI
64
Ben Warrenecee9322010-04-26 11:11:46 -070065static int eth_mac_skip(int index)
66{
67 char enetvar[15];
68 char *skip_state;
69 sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
70 return ((skip_state = getenv(enetvar)) != NULL);
71}
72
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
Ben Warrend7fb9bc2010-07-29 12:56:11 -0700105struct eth_device *eth_get_dev_by_name(const char *devname)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200106{
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 Frysinger1384f3b2010-06-09 22:10:48 -0400237 if (strchr(dev->name, ' '))
238 puts("\nWarning: eth device name has a space!\n");
239
Mike Frysinger86848a72009-07-15 21:31:28 -0400240 eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);
wdenkc6097192002-11-03 00:24:07 +0000241
242 if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
243 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
244 memcmp(dev->enetaddr, env_enetaddr, 6))
245 {
wdenkbaac6072004-05-08 20:33:20 +0000246 printf ("\nWarning: %s MAC addresses don't match:\n",
247 dev->name);
Mike Frysinger3f6e6992009-01-29 19:43:44 -0500248 printf ("Address in SROM is %pM\n",
249 dev->enetaddr);
250 printf ("Address in environment is %pM\n",
251 env_enetaddr);
wdenkc6097192002-11-03 00:24:07 +0000252 }
253
254 memcpy(dev->enetaddr, env_enetaddr, 6);
255 }
Ben Warrenecee9322010-04-26 11:11:46 -0700256 if (dev->write_hwaddr &&
257 !eth_mac_skip(eth_number) &&
258 is_valid_ether_addr(dev->enetaddr)) {
259 dev->write_hwaddr(dev);
260 }
wdenkc6097192002-11-03 00:24:07 +0000261
262 eth_number++;
263 dev = dev->next;
264 } while(dev != eth_devices);
265
wdenka3d991b2004-04-15 21:48:45 +0000266#ifdef CONFIG_NET_MULTI
267 /* update current ethernet name */
268 if (eth_current) {
269 char *act = getenv("ethact");
270 if (act == NULL || strcmp(act, eth_current->name) != 0)
271 setenv("ethact", eth_current->name);
272 } else
273 setenv("ethact", NULL);
274#endif
275
wdenkc6097192002-11-03 00:24:07 +0000276 putc ('\n');
277 }
278
279 return eth_number;
280}
281
David Updegraff53a5c422007-06-11 10:41:07 -0500282#ifdef CONFIG_MCAST_TFTP
283/* Multicast.
284 * mcast_addr: multicast ipaddr from which multicast Mac is made
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200285 * join: 1=join, 0=leave.
David Updegraff53a5c422007-06-11 10:41:07 -0500286 */
287int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
288{
289 u8 mcast_mac[6];
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200290 if (!eth_current || !eth_current->mcast)
David Updegraff53a5c422007-06-11 10:41:07 -0500291 return -1;
292 mcast_mac[5] = htonl(mcast_ip) & 0xff;
293 mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
294 mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
295 mcast_mac[2] = 0x5e;
296 mcast_mac[1] = 0x0;
297 mcast_mac[0] = 0x1;
298 return eth_current->mcast(eth_current, mcast_mac, join);
299}
300
Wolfgang Denk85eb5ca2007-08-14 09:47:27 +0200301/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
302 * and this is the ethernet-crc method needed for TSEC -- and perhaps
David Updegraff53a5c422007-06-11 10:41:07 -0500303 * some other adapter -- hash tables
304 */
305#define CRCPOLY_LE 0xedb88320
306u32 ether_crc (size_t len, unsigned char const *p)
307{
308 int i;
309 u32 crc;
310 crc = ~0;
311 while (len--) {
312 crc ^= *p++;
313 for (i = 0; i < 8; i++)
314 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
315 }
316 /* an reverse the bits, cuz of way they arrive -- last-first */
317 crc = (crc >> 16) | (crc << 16);
318 crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
319 crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
320 crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
321 crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
322 return crc;
323}
324
325#endif
326
wdenkc6097192002-11-03 00:24:07 +0000327
328int eth_init(bd_t *bis)
329{
Mike Frysinger86848a72009-07-15 21:31:28 -0400330 int eth_number;
331 struct eth_device *old_current, *dev;
wdenkc6097192002-11-03 00:24:07 +0000332
Stefan Roese6bc11382008-03-04 17:40:41 +0100333 if (!eth_current) {
334 puts ("No ethernet found.\n");
Upakul Barkakaty505be872007-11-29 12:16:13 +0530335 return -1;
Stefan Roese6bc11382008-03-04 17:40:41 +0100336 }
wdenkc6097192002-11-03 00:24:07 +0000337
Mike Frysinger86848a72009-07-15 21:31:28 -0400338 /* Sync environment with network devices */
339 eth_number = 0;
340 dev = eth_devices;
341 do {
342 uchar env_enetaddr[6];
343
344 if (eth_getenv_enetaddr_by_index(eth_number, env_enetaddr))
345 memcpy(dev->enetaddr, env_enetaddr, 6);
346
347 ++eth_number;
348 dev = dev->next;
349 } while (dev != eth_devices);
350
wdenkc6097192002-11-03 00:24:07 +0000351 old_current = eth_current;
352 do {
Robin Getz0ebf04c2009-07-23 03:01:03 -0400353 debug("Trying %s\n", eth_current->name);
wdenkc6097192002-11-03 00:24:07 +0000354
Ben Warren422b1a02008-01-09 18:15:53 -0500355 if (eth_current->init(eth_current,bis) >= 0) {
wdenkc6097192002-11-03 00:24:07 +0000356 eth_current->state = ETH_STATE_ACTIVE;
357
Upakul Barkakaty505be872007-11-29 12:16:13 +0530358 return 0;
wdenkc6097192002-11-03 00:24:07 +0000359 }
Robin Getz0ebf04c2009-07-23 03:01:03 -0400360 debug("FAIL\n");
wdenkc6097192002-11-03 00:24:07 +0000361
362 eth_try_another(0);
363 } while (old_current != eth_current);
364
Upakul Barkakaty505be872007-11-29 12:16:13 +0530365 return -1;
wdenkc6097192002-11-03 00:24:07 +0000366}
367
368void eth_halt(void)
369{
370 if (!eth_current)
371 return;
372
373 eth_current->halt(eth_current);
374
375 eth_current->state = ETH_STATE_PASSIVE;
376}
377
378int eth_send(volatile void *packet, int length)
379{
380 if (!eth_current)
381 return -1;
382
383 return eth_current->send(eth_current, packet, length);
384}
385
386int eth_rx(void)
387{
388 if (!eth_current)
389 return -1;
390
391 return eth_current->recv(eth_current);
392}
393
Rafal Jaworowskif85b6072007-12-27 18:19:02 +0100394#ifdef CONFIG_API
395static void eth_save_packet(volatile void *packet, int length)
396{
397 volatile char *p = packet;
398 int i;
399
400 if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
401 return;
402
403 if (PKTSIZE < length)
404 return;
405
406 for (i = 0; i < length; i++)
407 eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
408
409 eth_rcv_bufs[eth_rcv_last].length = length;
410 eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
411}
412
413int eth_receive(volatile void *packet, int length)
414{
415 volatile char *p = packet;
416 void *pp = push_packet;
417 int i;
418
419 if (eth_rcv_current == eth_rcv_last) {
420 push_packet = eth_save_packet;
421 eth_rx();
422 push_packet = pp;
423
424 if (eth_rcv_current == eth_rcv_last)
425 return -1;
426 }
427
428 if (length < eth_rcv_bufs[eth_rcv_current].length)
429 return -1;
430
431 length = eth_rcv_bufs[eth_rcv_current].length;
432
433 for (i = 0; i < length; i++)
434 p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
435
436 eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
437 return length;
438}
439#endif /* CONFIG_API */
440
wdenkc6097192002-11-03 00:24:07 +0000441void eth_try_another(int first_restart)
442{
443 static struct eth_device *first_failed = NULL;
Matthias Fuchse1692572008-01-17 07:45:05 +0100444 char *ethrotate;
445
446 /*
447 * Do not rotate between network interfaces when
448 * 'ethrotate' variable is set to 'no'.
449 */
450 if (((ethrotate = getenv ("ethrotate")) != NULL) &&
451 (strcmp(ethrotate, "no") == 0))
452 return;
wdenkc6097192002-11-03 00:24:07 +0000453
454 if (!eth_current)
455 return;
456
wdenkbaac6072004-05-08 20:33:20 +0000457 if (first_restart) {
wdenkc6097192002-11-03 00:24:07 +0000458 first_failed = eth_current;
459 }
460
461 eth_current = eth_current->next;
462
wdenka3d991b2004-04-15 21:48:45 +0000463#ifdef CONFIG_NET_MULTI
464 /* update current ethernet name */
465 {
466 char *act = getenv("ethact");
467 if (act == NULL || strcmp(act, eth_current->name) != 0)
468 setenv("ethact", eth_current->name);
469 }
470#endif
471
wdenkbaac6072004-05-08 20:33:20 +0000472 if (first_failed == eth_current) {
wdenkc6097192002-11-03 00:24:07 +0000473 NetRestartWrap = 1;
474 }
475}
476
wdenka3d991b2004-04-15 21:48:45 +0000477#ifdef CONFIG_NET_MULTI
478void eth_set_current(void)
479{
Heiko Schocherda954272009-04-28 08:36:11 +0200480 static char *act = NULL;
481 static int env_changed_id = 0;
wdenka3d991b2004-04-15 21:48:45 +0000482 struct eth_device* old_current;
Heiko Schocher2f70c492009-02-10 09:38:52 +0100483 int env_id;
wdenka3d991b2004-04-15 21:48:45 +0000484
485 if (!eth_current) /* XXX no current */
486 return;
487
Heiko Schocher2f70c492009-02-10 09:38:52 +0100488 env_id = get_env_id();
489 if ((act == NULL) || (env_changed_id != env_id)) {
490 act = getenv("ethact");
491 env_changed_id = env_id;
492 }
wdenka3d991b2004-04-15 21:48:45 +0000493 if (act != NULL) {
494 old_current = eth_current;
495 do {
496 if (strcmp(eth_current->name, act) == 0)
497 return;
498 eth_current = eth_current->next;
499 } while (old_current != eth_current);
500 }
501
502 setenv("ethact", eth_current->name);
503}
504#endif
505
wdenk5bb226e2003-11-17 21:14:37 +0000506char *eth_get_name (void)
507{
508 return (eth_current ? eth_current->name : "unknown");
509}
Mike Frysinger6ac59c52009-11-03 11:35:42 -0500510
511#else /* !CONFIG_NET_MULTI */
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200512
Ben Warren3bd0a872009-07-17 00:50:15 -0700513#warning Ethernet driver is deprecated. Please update to use CONFIG_NET_MULTI
514
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200515extern int at91rm9200_miiphy_initialize(bd_t *bis);
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200516extern int mcf52x2_miiphy_initialize(bd_t *bis);
517extern int ns7520_miiphy_initialize(bd_t *bis);
Sergey Kubushync74b2102007-08-10 20:26:18 +0200518
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200519
520int eth_initialize(bd_t *bis)
521{
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500522#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
Marian Balakowiczd9785c12005-11-30 18:06:04 +0100523 miiphy_init();
524#endif
525
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200526#if defined(CONFIG_AT91RM9200)
527 at91rm9200_miiphy_initialize(bis);
528#endif
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200529#if defined(CONFIG_MCF52x2)
530 mcf52x2_miiphy_initialize(bis);
531#endif
Wolfgang Denk25dbe982008-07-13 23:07:35 +0200532#if defined(CONFIG_DRIVER_NS7520_ETHERNET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200533 ns7520_miiphy_initialize(bis);
534#endif
535 return 0;
536}
wdenkc6097192002-11-03 00:24:07 +0000537#endif