Merge with git://www.denx.de/git/u-boot.git
[platform/kernel/u-boot.git] / net / eth.c
1 /*
2  * (C) Copyright 2001-2004
3  * 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>
27 #include <miiphy.h>
28
29 #if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
30
31 #ifdef CFG_GT_6426x
32 extern int gt6426x_eth_initialize(bd_t *bis);
33 #endif
34
35 extern int au1x00_enet_initialize(bd_t*);
36 extern int dc21x4x_initialize(bd_t*);
37 extern int e1000_initialize(bd_t*);
38 extern int eepro100_initialize(bd_t*);
39 extern int eth_3com_initialize(bd_t*);
40 extern int fec_initialize(bd_t*);
41 extern int inca_switch_initialize(bd_t*);
42 extern int mpc5xxx_fec_initialize(bd_t*);
43 extern int mpc8220_fec_initialize(bd_t*);
44 extern int mv6436x_eth_initialize(bd_t *);
45 extern int mv6446x_eth_initialize(bd_t *);
46 extern int natsemi_initialize(bd_t*);
47 extern int ns8382x_initialize(bd_t*);
48 extern int pcnet_initialize(bd_t*);
49 extern int plb2800_eth_initialize(bd_t*);
50 extern int ppc_4xx_eth_initialize(bd_t *);
51 extern int rtl8139_initialize(bd_t*);
52 extern int rtl8169_initialize(bd_t*);
53 extern int scc_initialize(bd_t*);
54 extern int skge_initialize(bd_t*);
55 extern int tsi108_eth_initialize(bd_t*);
56 extern int tsec_initialize(bd_t*, int, char *);
57 extern int npe_initialize(bd_t *);
58 extern int uec_initialize(int);
59 extern int bfin_EMAC_initialize(bd_t *);
60 extern int atstk1000_eth_initialize(bd_t *);
61
62 static struct eth_device *eth_devices, *eth_current;
63
64 struct eth_device *eth_get_dev(void)
65 {
66         return eth_current;
67 }
68
69 struct eth_device *eth_get_dev_by_name(char *devname)
70 {
71         struct eth_device *dev, *target_dev;
72
73         if (!eth_devices)
74                 return NULL;
75
76         dev = eth_devices;
77         target_dev = NULL;
78         do {
79                 if (strcmp(devname, dev->name) == 0) {
80                         target_dev = dev;
81                         break;
82                 }
83                 dev = dev->next;
84         } while (dev != eth_devices);
85
86         return target_dev;
87 }
88
89 int eth_get_dev_index (void)
90 {
91         struct eth_device *dev;
92         int num = 0;
93
94         if (!eth_devices) {
95                 return (-1);
96         }
97
98         for (dev = eth_devices; dev; dev = dev->next) {
99                 if (dev == eth_current)
100                         break;
101                 ++num;
102         }
103
104         if (dev) {
105                 return (num);
106         }
107
108         return (0);
109 }
110
111 int eth_register(struct eth_device* dev)
112 {
113         struct eth_device *d;
114
115         if (!eth_devices) {
116                 eth_current = eth_devices = dev;
117 #ifdef CONFIG_NET_MULTI
118                 /* update current ethernet name */
119                 {
120                         char *act = getenv("ethact");
121                         if (act == NULL || strcmp(act, eth_current->name) != 0)
122                                 setenv("ethact", eth_current->name);
123                 }
124 #endif
125         } else {
126                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
127                 d->next = dev;
128         }
129
130         dev->state = ETH_STATE_INIT;
131         dev->next  = eth_devices;
132
133         return 0;
134 }
135
136 int eth_initialize(bd_t *bis)
137 {
138         char enetvar[32], env_enetaddr[6];
139         int i, eth_number = 0;
140         char *tmp, *end;
141
142         eth_devices = NULL;
143         eth_current = NULL;
144
145 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
146         miiphy_init();
147 #endif
148
149 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
150         mv6436x_eth_initialize(bis);
151 #endif
152 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
153         mv6446x_eth_initialize(bis);
154 #endif
155 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
156         ppc_4xx_eth_initialize(bis);
157 #endif
158 #ifdef CONFIG_INCA_IP_SWITCH
159         inca_switch_initialize(bis);
160 #endif
161 #ifdef CONFIG_PLB2800_ETHER
162         plb2800_eth_initialize(bis);
163 #endif
164 #ifdef SCC_ENET
165         scc_initialize(bis);
166 #endif
167 #if defined(CONFIG_MPC5xxx_FEC)
168         mpc5xxx_fec_initialize(bis);
169 #endif
170 #if defined(CONFIG_MPC8220_FEC)
171         mpc8220_fec_initialize(bis);
172 #endif
173 #if defined(CONFIG_SK98)
174         skge_initialize(bis);
175 #endif
176 #if defined(CONFIG_MPC85XX_TSEC1)
177         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
178 #elif defined(CONFIG_MPC83XX_TSEC1)
179         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
180 #endif
181 #if defined(CONFIG_MPC85XX_TSEC2)
182         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
183 #elif defined(CONFIG_MPC83XX_TSEC2)
184         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
185 #endif
186 #if defined(CONFIG_MPC85XX_FEC)
187         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
188 #else
189 #    if defined(CONFIG_MPC85XX_TSEC3)
190         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
191 #    elif defined(CONFIG_MPC83XX_TSEC3)
192         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
193 #    endif
194 #    if defined(CONFIG_MPC85XX_TSEC4)
195         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
196 #    elif defined(CONFIG_MPC83XX_TSEC4)
197         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
198 #    endif
199 #endif
200 #if defined(CONFIG_UEC_ETH1)
201         uec_initialize(0);
202 #endif
203 #if defined(CONFIG_UEC_ETH2)
204         uec_initialize(1);
205 #endif
206 #if defined(CONFIG_MPC86XX_TSEC1)
207        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
208 #endif
209
210 #if defined(CONFIG_MPC86XX_TSEC2)
211        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
212 #endif
213
214 #if defined(CONFIG_MPC86XX_TSEC3)
215        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
216 #endif
217
218 #if defined(CONFIG_MPC86XX_TSEC4)
219        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
220 #endif
221
222 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
223         fec_initialize(bis);
224 #endif
225 #if defined(CONFIG_AU1X00)
226         au1x00_enet_initialize(bis);
227 #endif
228 #if defined(CONFIG_IXP4XX_NPE)
229         npe_initialize(bis);
230 #endif
231 #ifdef CONFIG_E1000
232         e1000_initialize(bis);
233 #endif
234 #ifdef CONFIG_EEPRO100
235         eepro100_initialize(bis);
236 #endif
237 #ifdef CONFIG_TULIP
238         dc21x4x_initialize(bis);
239 #endif
240 #ifdef CONFIG_3COM
241         eth_3com_initialize(bis);
242 #endif
243 #ifdef CONFIG_PCNET
244         pcnet_initialize(bis);
245 #endif
246 #ifdef CFG_GT_6426x
247         gt6426x_eth_initialize(bis);
248 #endif
249 #ifdef CONFIG_NATSEMI
250         natsemi_initialize(bis);
251 #endif
252 #ifdef CONFIG_NS8382X
253         ns8382x_initialize(bis);
254 #endif
255 #if defined(CONFIG_TSI108_ETH)
256         tsi108_eth_initialize(bis);
257 #endif
258 #if defined(CONFIG_RTL8139)
259         rtl8139_initialize(bis);
260 #endif
261 #if defined(CONFIG_RTL8169)
262         rtl8169_initialize(bis);
263 #endif
264 #if defined(CONFIG_BF537)
265         bfin_EMAC_initialize(bis);
266 #endif
267 #if defined(CONFIG_ATSTK1000)
268         atstk1000_eth_initialize(bis);
269 #endif
270
271         if (!eth_devices) {
272                 puts ("No ethernet found.\n");
273         } else {
274                 struct eth_device *dev = eth_devices;
275                 char *ethprime = getenv ("ethprime");
276
277                 do {
278                         if (eth_number)
279                                 puts (", ");
280
281                         printf("%s", dev->name);
282
283                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
284                                 eth_current = dev;
285                                 puts (" [PRIME]");
286                         }
287
288                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
289                         tmp = getenv (enetvar);
290
291                         for (i=0; i<6; i++) {
292                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
293                                 if (tmp)
294                                         tmp = (*end) ? end+1 : end;
295                         }
296
297                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
298                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
299                                     memcmp(dev->enetaddr, env_enetaddr, 6))
300                                 {
301                                         printf ("\nWarning: %s MAC addresses don't match:\n",
302                                                 dev->name);
303                                         printf ("Address in SROM is         "
304                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
305                                                dev->enetaddr[0], dev->enetaddr[1],
306                                                dev->enetaddr[2], dev->enetaddr[3],
307                                                dev->enetaddr[4], dev->enetaddr[5]);
308                                         printf ("Address in environment is  "
309                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
310                                                env_enetaddr[0], env_enetaddr[1],
311                                                env_enetaddr[2], env_enetaddr[3],
312                                                env_enetaddr[4], env_enetaddr[5]);
313                                 }
314
315                                 memcpy(dev->enetaddr, env_enetaddr, 6);
316                         }
317
318                         eth_number++;
319                         dev = dev->next;
320                 } while(dev != eth_devices);
321
322 #ifdef CONFIG_NET_MULTI
323                 /* update current ethernet name */
324                 if (eth_current) {
325                         char *act = getenv("ethact");
326                         if (act == NULL || strcmp(act, eth_current->name) != 0)
327                                 setenv("ethact", eth_current->name);
328                 } else
329                         setenv("ethact", NULL);
330 #endif
331
332                 putc ('\n');
333         }
334
335         return eth_number;
336 }
337
338 void eth_set_enetaddr(int num, char *addr) {
339         struct eth_device *dev;
340         unsigned char enetaddr[6];
341         char *end;
342         int i;
343
344         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
345
346         if (!eth_devices)
347                 return;
348
349         for (i=0; i<6; i++) {
350                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
351                 if (addr)
352                         addr = (*end) ? end+1 : end;
353         }
354
355         dev = eth_devices;
356         while(num-- > 0) {
357                 dev = dev->next;
358
359                 if (dev == eth_devices)
360                         return;
361         }
362
363         debug ( "Setting new HW address on %s\n"
364                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
365                 dev->name,
366                 enetaddr[0], enetaddr[1],
367                 enetaddr[2], enetaddr[3],
368                 enetaddr[4], enetaddr[5]);
369
370         memcpy(dev->enetaddr, enetaddr, 6);
371 }
372
373 int eth_init(bd_t *bis)
374 {
375         struct eth_device* old_current;
376
377         if (!eth_current)
378                 return 0;
379
380         old_current = eth_current;
381         do {
382                 debug ("Trying %s\n", eth_current->name);
383
384                 if (eth_current->init(eth_current, bis)) {
385                         eth_current->state = ETH_STATE_ACTIVE;
386
387                         return 1;
388                 }
389                 debug  ("FAIL\n");
390
391                 eth_try_another(0);
392         } while (old_current != eth_current);
393
394         return 0;
395 }
396
397 void eth_halt(void)
398 {
399         if (!eth_current)
400                 return;
401
402         eth_current->halt(eth_current);
403
404         eth_current->state = ETH_STATE_PASSIVE;
405 }
406
407 int eth_send(volatile void *packet, int length)
408 {
409         if (!eth_current)
410                 return -1;
411
412         return eth_current->send(eth_current, packet, length);
413 }
414
415 int eth_rx(void)
416 {
417         if (!eth_current)
418                 return -1;
419
420         return eth_current->recv(eth_current);
421 }
422
423 void eth_try_another(int first_restart)
424 {
425         static struct eth_device *first_failed = NULL;
426
427         if (!eth_current)
428                 return;
429
430         if (first_restart) {
431                 first_failed = eth_current;
432         }
433
434         eth_current = eth_current->next;
435
436 #ifdef CONFIG_NET_MULTI
437         /* update current ethernet name */
438         {
439                 char *act = getenv("ethact");
440                 if (act == NULL || strcmp(act, eth_current->name) != 0)
441                         setenv("ethact", eth_current->name);
442         }
443 #endif
444
445         if (first_failed == eth_current) {
446                 NetRestartWrap = 1;
447         }
448 }
449
450 #ifdef CONFIG_NET_MULTI
451 void eth_set_current(void)
452 {
453         char *act;
454         struct eth_device* old_current;
455
456         if (!eth_current)       /* XXX no current */
457                 return;
458
459         act = getenv("ethact");
460         if (act != NULL) {
461                 old_current = eth_current;
462                 do {
463                         if (strcmp(eth_current->name, act) == 0)
464                                 return;
465                         eth_current = eth_current->next;
466                 } while (old_current != eth_current);
467         }
468
469         setenv("ethact", eth_current->name);
470 }
471 #endif
472
473 char *eth_get_name (void)
474 {
475         return (eth_current ? eth_current->name : "unknown");
476 }
477 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
478
479 extern int at91rm9200_miiphy_initialize(bd_t *bis);
480 extern int emac4xx_miiphy_initialize(bd_t *bis);
481 extern int mcf52x2_miiphy_initialize(bd_t *bis);
482 extern int ns7520_miiphy_initialize(bd_t *bis);
483
484 int eth_initialize(bd_t *bis)
485 {
486 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
487         miiphy_init();
488 #endif
489
490 #if defined(CONFIG_AT91RM9200)
491         at91rm9200_miiphy_initialize(bis);
492 #endif
493 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
494         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
495         emac4xx_miiphy_initialize(bis);
496 #endif
497 #if defined(CONFIG_MCF52x2)
498         mcf52x2_miiphy_initialize(bis);
499 #endif
500 #if defined(CONFIG_NETARM)
501         ns7520_miiphy_initialize(bis);
502 #endif
503         return 0;
504 }
505 #endif