Merge with /home/tur/proj/v38b/u-boot
[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 tsec_initialize(bd_t*, int, char *);
56 extern int npe_initialize(bd_t *);
57 extern int uec_initialize(int);
58
59 static struct eth_device *eth_devices, *eth_current;
60
61 struct eth_device *eth_get_dev(void)
62 {
63         return eth_current;
64 }
65
66 struct eth_device *eth_get_dev_by_name(char *devname)
67 {
68         struct eth_device *dev, *target_dev;
69
70         if (!eth_devices)
71                 return NULL;
72
73         dev = eth_devices;
74         target_dev = NULL;
75         do {
76                 if (strcmp(devname, dev->name) == 0) {
77                         target_dev = dev;
78                         break;
79                 }
80                 dev = dev->next;
81         } while (dev != eth_devices);
82
83         return target_dev;
84 }
85
86 int eth_get_dev_index (void)
87 {
88         struct eth_device *dev;
89         int num = 0;
90
91         if (!eth_devices) {
92                 return (-1);
93         }
94
95         for (dev = eth_devices; dev; dev = dev->next) {
96                 if (dev == eth_current)
97                         break;
98                 ++num;
99         }
100
101         if (dev) {
102                 return (num);
103         }
104
105         return (0);
106 }
107
108 int eth_register(struct eth_device* dev)
109 {
110         struct eth_device *d;
111
112         if (!eth_devices) {
113                 eth_current = eth_devices = dev;
114 #ifdef CONFIG_NET_MULTI
115                 /* update current ethernet name */
116                 {
117                         char *act = getenv("ethact");
118                         if (act == NULL || strcmp(act, eth_current->name) != 0)
119                                 setenv("ethact", eth_current->name);
120                 }
121 #endif
122         } else {
123                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
124                 d->next = dev;
125         }
126
127         dev->state = ETH_STATE_INIT;
128         dev->next  = eth_devices;
129
130         return 0;
131 }
132
133 int eth_initialize(bd_t *bis)
134 {
135         char enetvar[32], env_enetaddr[6];
136         int i, eth_number = 0;
137         char *tmp, *end;
138
139         eth_devices = NULL;
140         eth_current = NULL;
141
142 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
143         miiphy_init();
144 #endif
145
146 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
147         mv6436x_eth_initialize(bis);
148 #endif
149 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
150         mv6446x_eth_initialize(bis);
151 #endif
152 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
153         ppc_4xx_eth_initialize(bis);
154 #endif
155 #ifdef CONFIG_INCA_IP_SWITCH
156         inca_switch_initialize(bis);
157 #endif
158 #ifdef CONFIG_PLB2800_ETHER
159         plb2800_eth_initialize(bis);
160 #endif
161 #ifdef SCC_ENET
162         scc_initialize(bis);
163 #endif
164 #if defined(CONFIG_MPC5xxx_FEC)
165         mpc5xxx_fec_initialize(bis);
166 #endif
167 #if defined(CONFIG_MPC8220_FEC)
168         mpc8220_fec_initialize(bis);
169 #endif
170 #if defined(CONFIG_SK98)
171         skge_initialize(bis);
172 #endif
173 #if defined(CONFIG_MPC85XX_TSEC1)
174         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
175 #elif defined(CONFIG_MPC83XX_TSEC1)
176         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
177 #endif
178 #if defined(CONFIG_MPC85XX_TSEC2)
179         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
180 #elif defined(CONFIG_MPC83XX_TSEC2)
181         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
182 #endif
183 #if defined(CONFIG_MPC85XX_FEC)
184         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
185 #else
186 #    if defined(CONFIG_MPC85XX_TSEC3)
187         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
188 #    elif defined(CONFIG_MPC83XX_TSEC3)
189         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
190 #    endif
191 #    if defined(CONFIG_MPC85XX_TSEC4)
192         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
193 #    elif defined(CONFIG_MPC83XX_TSEC4)
194         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
195 #    endif
196 #endif
197 #if defined(CONFIG_UEC_ETH1)
198         uec_initialize(0);
199 #endif
200 #if defined(CONFIG_UEC_ETH2)
201         uec_initialize(1);
202 #endif
203 #if defined(CONFIG_MPC86XX_TSEC1)
204        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
205 #endif
206
207 #if defined(CONFIG_MPC86XX_TSEC2)
208        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
209 #endif
210
211 #if defined(CONFIG_MPC86XX_TSEC3)
212        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
213 #endif
214
215 #if defined(CONFIG_MPC86XX_TSEC4)
216        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
217 #endif
218
219 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
220         fec_initialize(bis);
221 #endif
222 #if defined(CONFIG_AU1X00)
223         au1x00_enet_initialize(bis);
224 #endif
225 #if defined(CONFIG_IXP4XX_NPE)
226         npe_initialize(bis);
227 #endif
228 #ifdef CONFIG_E1000
229         e1000_initialize(bis);
230 #endif
231 #ifdef CONFIG_EEPRO100
232         eepro100_initialize(bis);
233 #endif
234 #ifdef CONFIG_TULIP
235         dc21x4x_initialize(bis);
236 #endif
237 #ifdef CONFIG_3COM
238         eth_3com_initialize(bis);
239 #endif
240 #ifdef CONFIG_PCNET
241         pcnet_initialize(bis);
242 #endif
243 #ifdef CFG_GT_6426x
244         gt6426x_eth_initialize(bis);
245 #endif
246 #ifdef CONFIG_NATSEMI
247         natsemi_initialize(bis);
248 #endif
249 #ifdef CONFIG_NS8382X
250         ns8382x_initialize(bis);
251 #endif
252 #if defined(CONFIG_RTL8139)
253         rtl8139_initialize(bis);
254 #endif
255 #if defined(CONFIG_RTL8169)
256         rtl8169_initialize(bis);
257 #endif
258
259         if (!eth_devices) {
260                 puts ("No ethernet found.\n");
261         } else {
262                 struct eth_device *dev = eth_devices;
263                 char *ethprime = getenv ("ethprime");
264
265                 do {
266                         if (eth_number)
267                                 puts (", ");
268
269                         printf("%s", dev->name);
270
271                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
272                                 eth_current = dev;
273                                 puts (" [PRIME]");
274                         }
275
276                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
277                         tmp = getenv (enetvar);
278
279                         for (i=0; i<6; i++) {
280                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
281                                 if (tmp)
282                                         tmp = (*end) ? end+1 : end;
283                         }
284
285                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
286                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
287                                     memcmp(dev->enetaddr, env_enetaddr, 6))
288                                 {
289                                         printf ("\nWarning: %s MAC addresses don't match:\n",
290                                                 dev->name);
291                                         printf ("Address in SROM is         "
292                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
293                                                dev->enetaddr[0], dev->enetaddr[1],
294                                                dev->enetaddr[2], dev->enetaddr[3],
295                                                dev->enetaddr[4], dev->enetaddr[5]);
296                                         printf ("Address in environment is  "
297                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
298                                                env_enetaddr[0], env_enetaddr[1],
299                                                env_enetaddr[2], env_enetaddr[3],
300                                                env_enetaddr[4], env_enetaddr[5]);
301                                 }
302
303                                 memcpy(dev->enetaddr, env_enetaddr, 6);
304                         }
305
306                         eth_number++;
307                         dev = dev->next;
308                 } while(dev != eth_devices);
309
310 #ifdef CONFIG_NET_MULTI
311                 /* update current ethernet name */
312                 if (eth_current) {
313                         char *act = getenv("ethact");
314                         if (act == NULL || strcmp(act, eth_current->name) != 0)
315                                 setenv("ethact", eth_current->name);
316                 } else
317                         setenv("ethact", NULL);
318 #endif
319
320                 putc ('\n');
321         }
322
323         return eth_number;
324 }
325
326 void eth_set_enetaddr(int num, char *addr) {
327         struct eth_device *dev;
328         unsigned char enetaddr[6];
329         char *end;
330         int i;
331
332         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
333
334         if (!eth_devices)
335                 return;
336
337         for (i=0; i<6; i++) {
338                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
339                 if (addr)
340                         addr = (*end) ? end+1 : end;
341         }
342
343         dev = eth_devices;
344         while(num-- > 0) {
345                 dev = dev->next;
346
347                 if (dev == eth_devices)
348                         return;
349         }
350
351         debug ( "Setting new HW address on %s\n"
352                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
353                 dev->name,
354                 enetaddr[0], enetaddr[1],
355                 enetaddr[2], enetaddr[3],
356                 enetaddr[4], enetaddr[5]);
357
358         memcpy(dev->enetaddr, enetaddr, 6);
359 }
360
361 int eth_init(bd_t *bis)
362 {
363         struct eth_device* old_current;
364
365         if (!eth_current)
366                 return 0;
367
368         old_current = eth_current;
369         do {
370                 debug ("Trying %s\n", eth_current->name);
371
372                 if (eth_current->init(eth_current, bis)) {
373                         eth_current->state = ETH_STATE_ACTIVE;
374
375                         return 1;
376                 }
377                 debug  ("FAIL\n");
378
379                 eth_try_another(0);
380         } while (old_current != eth_current);
381
382         return 0;
383 }
384
385 void eth_halt(void)
386 {
387         if (!eth_current)
388                 return;
389
390         eth_current->halt(eth_current);
391
392         eth_current->state = ETH_STATE_PASSIVE;
393 }
394
395 int eth_send(volatile void *packet, int length)
396 {
397         if (!eth_current)
398                 return -1;
399
400         return eth_current->send(eth_current, packet, length);
401 }
402
403 int eth_rx(void)
404 {
405         if (!eth_current)
406                 return -1;
407
408         return eth_current->recv(eth_current);
409 }
410
411 void eth_try_another(int first_restart)
412 {
413         static struct eth_device *first_failed = NULL;
414
415         if (!eth_current)
416                 return;
417
418         if (first_restart) {
419                 first_failed = eth_current;
420         }
421
422         eth_current = eth_current->next;
423
424 #ifdef CONFIG_NET_MULTI
425         /* update current ethernet name */
426         {
427                 char *act = getenv("ethact");
428                 if (act == NULL || strcmp(act, eth_current->name) != 0)
429                         setenv("ethact", eth_current->name);
430         }
431 #endif
432
433         if (first_failed == eth_current) {
434                 NetRestartWrap = 1;
435         }
436 }
437
438 #ifdef CONFIG_NET_MULTI
439 void eth_set_current(void)
440 {
441         char *act;
442         struct eth_device* old_current;
443
444         if (!eth_current)       /* XXX no current */
445                 return;
446
447         act = getenv("ethact");
448         if (act != NULL) {
449                 old_current = eth_current;
450                 do {
451                         if (strcmp(eth_current->name, act) == 0)
452                                 return;
453                         eth_current = eth_current->next;
454                 } while (old_current != eth_current);
455         }
456
457         setenv("ethact", eth_current->name);
458 }
459 #endif
460
461 char *eth_get_name (void)
462 {
463         return (eth_current ? eth_current->name : "unknown");
464 }
465 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
466
467 extern int at91rm9200_miiphy_initialize(bd_t *bis);
468 extern int emac4xx_miiphy_initialize(bd_t *bis);
469 extern int mcf52x2_miiphy_initialize(bd_t *bis);
470 extern int ns7520_miiphy_initialize(bd_t *bis);
471
472 int eth_initialize(bd_t *bis)
473 {
474 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
475         miiphy_init();
476 #endif
477
478 #if defined(CONFIG_AT91RM9200)
479         at91rm9200_miiphy_initialize(bis);
480 #endif
481 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
482         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
483         emac4xx_miiphy_initialize(bis);
484 #endif
485 #if defined(CONFIG_MCF52x2)
486         mcf52x2_miiphy_initialize(bis);
487 #endif
488 #if defined(CONFIG_NETARM)
489         ns7520_miiphy_initialize(bis);
490 #endif
491         return 0;
492 }
493 #endif