Merge branch 'master' into hpc2
[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
60 static struct eth_device *eth_devices, *eth_current;
61
62 struct eth_device *eth_get_dev(void)
63 {
64         return eth_current;
65 }
66
67 struct eth_device *eth_get_dev_by_name(char *devname)
68 {
69         struct eth_device *dev, *target_dev;
70
71         if (!eth_devices)
72                 return NULL;
73
74         dev = eth_devices;
75         target_dev = NULL;
76         do {
77                 if (strcmp(devname, dev->name) == 0) {
78                         target_dev = dev;
79                         break;
80                 }
81                 dev = dev->next;
82         } while (dev != eth_devices);
83
84         return target_dev;
85 }
86
87 int eth_get_dev_index (void)
88 {
89         struct eth_device *dev;
90         int num = 0;
91
92         if (!eth_devices) {
93                 return (-1);
94         }
95
96         for (dev = eth_devices; dev; dev = dev->next) {
97                 if (dev == eth_current)
98                         break;
99                 ++num;
100         }
101
102         if (dev) {
103                 return (num);
104         }
105
106         return (0);
107 }
108
109 int eth_register(struct eth_device* dev)
110 {
111         struct eth_device *d;
112
113         if (!eth_devices) {
114                 eth_current = eth_devices = dev;
115 #ifdef CONFIG_NET_MULTI
116                 /* update current ethernet name */
117                 {
118                         char *act = getenv("ethact");
119                         if (act == NULL || strcmp(act, eth_current->name) != 0)
120                                 setenv("ethact", eth_current->name);
121                 }
122 #endif
123         } else {
124                 for (d=eth_devices; d->next!=eth_devices; d=d->next);
125                 d->next = dev;
126         }
127
128         dev->state = ETH_STATE_INIT;
129         dev->next  = eth_devices;
130
131         return 0;
132 }
133
134 int eth_initialize(bd_t *bis)
135 {
136         char enetvar[32], env_enetaddr[6];
137         int i, eth_number = 0;
138         char *tmp, *end;
139
140         eth_devices = NULL;
141         eth_current = NULL;
142
143 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
144         miiphy_init();
145 #endif
146
147 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
148         mv6436x_eth_initialize(bis);
149 #endif
150 #if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
151         mv6446x_eth_initialize(bis);
152 #endif
153 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
154         ppc_4xx_eth_initialize(bis);
155 #endif
156 #ifdef CONFIG_INCA_IP_SWITCH
157         inca_switch_initialize(bis);
158 #endif
159 #ifdef CONFIG_PLB2800_ETHER
160         plb2800_eth_initialize(bis);
161 #endif
162 #ifdef SCC_ENET
163         scc_initialize(bis);
164 #endif
165 #if defined(CONFIG_MPC5xxx_FEC)
166         mpc5xxx_fec_initialize(bis);
167 #endif
168 #if defined(CONFIG_MPC8220_FEC)
169         mpc8220_fec_initialize(bis);
170 #endif
171 #if defined(CONFIG_SK98)
172         skge_initialize(bis);
173 #endif
174 #if defined(CONFIG_MPC85XX_TSEC1)
175         tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
176 #elif defined(CONFIG_MPC83XX_TSEC1)
177         tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
178 #endif
179 #if defined(CONFIG_MPC85XX_TSEC2)
180         tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
181 #elif defined(CONFIG_MPC83XX_TSEC2)
182         tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
183 #endif
184 #if defined(CONFIG_MPC85XX_FEC)
185         tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
186 #else
187 #    if defined(CONFIG_MPC85XX_TSEC3)
188         tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
189 #    elif defined(CONFIG_MPC83XX_TSEC3)
190         tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
191 #    endif
192 #    if defined(CONFIG_MPC85XX_TSEC4)
193         tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
194 #    elif defined(CONFIG_MPC83XX_TSEC4)
195         tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
196 #    endif
197 #endif
198 #if defined(CONFIG_UEC_ETH1)
199         uec_initialize(0);
200 #endif
201 #if defined(CONFIG_UEC_ETH2)
202         uec_initialize(1);
203 #endif
204 #if defined(CONFIG_MPC86XX_TSEC1)
205        tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
206 #endif
207
208 #if defined(CONFIG_MPC86XX_TSEC2)
209        tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
210 #endif
211
212 #if defined(CONFIG_MPC86XX_TSEC3)
213        tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
214 #endif
215
216 #if defined(CONFIG_MPC86XX_TSEC4)
217        tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
218 #endif
219
220 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
221         fec_initialize(bis);
222 #endif
223 #if defined(CONFIG_AU1X00)
224         au1x00_enet_initialize(bis);
225 #endif
226 #if defined(CONFIG_IXP4XX_NPE)
227         npe_initialize(bis);
228 #endif
229 #ifdef CONFIG_E1000
230         e1000_initialize(bis);
231 #endif
232 #ifdef CONFIG_EEPRO100
233         eepro100_initialize(bis);
234 #endif
235 #ifdef CONFIG_TULIP
236         dc21x4x_initialize(bis);
237 #endif
238 #ifdef CONFIG_3COM
239         eth_3com_initialize(bis);
240 #endif
241 #ifdef CONFIG_PCNET
242         pcnet_initialize(bis);
243 #endif
244 #ifdef CFG_GT_6426x
245         gt6426x_eth_initialize(bis);
246 #endif
247 #ifdef CONFIG_NATSEMI
248         natsemi_initialize(bis);
249 #endif
250 #ifdef CONFIG_NS8382X
251         ns8382x_initialize(bis);
252 #endif
253 #if defined(CONFIG_TSI108_ETH)
254         tsi108_eth_initialize(bis);
255 #endif
256 #if defined(CONFIG_RTL8139)
257         rtl8139_initialize(bis);
258 #endif
259 #if defined(CONFIG_RTL8169)
260         rtl8169_initialize(bis);
261 #endif
262
263         if (!eth_devices) {
264                 puts ("No ethernet found.\n");
265         } else {
266                 struct eth_device *dev = eth_devices;
267                 char *ethprime = getenv ("ethprime");
268
269                 do {
270                         if (eth_number)
271                                 puts (", ");
272
273                         printf("%s", dev->name);
274
275                         if (ethprime && strcmp (dev->name, ethprime) == 0) {
276                                 eth_current = dev;
277                                 puts (" [PRIME]");
278                         }
279
280                         sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
281                         tmp = getenv (enetvar);
282
283                         for (i=0; i<6; i++) {
284                                 env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
285                                 if (tmp)
286                                         tmp = (*end) ? end+1 : end;
287                         }
288
289                         if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
290                                 if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
291                                     memcmp(dev->enetaddr, env_enetaddr, 6))
292                                 {
293                                         printf ("\nWarning: %s MAC addresses don't match:\n",
294                                                 dev->name);
295                                         printf ("Address in SROM is         "
296                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
297                                                dev->enetaddr[0], dev->enetaddr[1],
298                                                dev->enetaddr[2], dev->enetaddr[3],
299                                                dev->enetaddr[4], dev->enetaddr[5]);
300                                         printf ("Address in environment is  "
301                                                "%02X:%02X:%02X:%02X:%02X:%02X\n",
302                                                env_enetaddr[0], env_enetaddr[1],
303                                                env_enetaddr[2], env_enetaddr[3],
304                                                env_enetaddr[4], env_enetaddr[5]);
305                                 }
306
307                                 memcpy(dev->enetaddr, env_enetaddr, 6);
308                         }
309
310                         eth_number++;
311                         dev = dev->next;
312                 } while(dev != eth_devices);
313
314 #ifdef CONFIG_NET_MULTI
315                 /* update current ethernet name */
316                 if (eth_current) {
317                         char *act = getenv("ethact");
318                         if (act == NULL || strcmp(act, eth_current->name) != 0)
319                                 setenv("ethact", eth_current->name);
320                 } else
321                         setenv("ethact", NULL);
322 #endif
323
324                 putc ('\n');
325         }
326
327         return eth_number;
328 }
329
330 void eth_set_enetaddr(int num, char *addr) {
331         struct eth_device *dev;
332         unsigned char enetaddr[6];
333         char *end;
334         int i;
335
336         debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
337
338         if (!eth_devices)
339                 return;
340
341         for (i=0; i<6; i++) {
342                 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
343                 if (addr)
344                         addr = (*end) ? end+1 : end;
345         }
346
347         dev = eth_devices;
348         while(num-- > 0) {
349                 dev = dev->next;
350
351                 if (dev == eth_devices)
352                         return;
353         }
354
355         debug ( "Setting new HW address on %s\n"
356                 "New Address is             %02X:%02X:%02X:%02X:%02X:%02X\n",
357                 dev->name,
358                 enetaddr[0], enetaddr[1],
359                 enetaddr[2], enetaddr[3],
360                 enetaddr[4], enetaddr[5]);
361
362         memcpy(dev->enetaddr, enetaddr, 6);
363 }
364
365 int eth_init(bd_t *bis)
366 {
367         struct eth_device* old_current;
368
369         if (!eth_current)
370                 return 0;
371
372         old_current = eth_current;
373         do {
374                 debug ("Trying %s\n", eth_current->name);
375
376                 if (eth_current->init(eth_current, bis)) {
377                         eth_current->state = ETH_STATE_ACTIVE;
378
379                         return 1;
380                 }
381                 debug  ("FAIL\n");
382
383                 eth_try_another(0);
384         } while (old_current != eth_current);
385
386         return 0;
387 }
388
389 void eth_halt(void)
390 {
391         if (!eth_current)
392                 return;
393
394         eth_current->halt(eth_current);
395
396         eth_current->state = ETH_STATE_PASSIVE;
397 }
398
399 int eth_send(volatile void *packet, int length)
400 {
401         if (!eth_current)
402                 return -1;
403
404         return eth_current->send(eth_current, packet, length);
405 }
406
407 int eth_rx(void)
408 {
409         if (!eth_current)
410                 return -1;
411
412         return eth_current->recv(eth_current);
413 }
414
415 void eth_try_another(int first_restart)
416 {
417         static struct eth_device *first_failed = NULL;
418
419         if (!eth_current)
420                 return;
421
422         if (first_restart) {
423                 first_failed = eth_current;
424         }
425
426         eth_current = eth_current->next;
427
428 #ifdef CONFIG_NET_MULTI
429         /* update current ethernet name */
430         {
431                 char *act = getenv("ethact");
432                 if (act == NULL || strcmp(act, eth_current->name) != 0)
433                         setenv("ethact", eth_current->name);
434         }
435 #endif
436
437         if (first_failed == eth_current) {
438                 NetRestartWrap = 1;
439         }
440 }
441
442 #ifdef CONFIG_NET_MULTI
443 void eth_set_current(void)
444 {
445         char *act;
446         struct eth_device* old_current;
447
448         if (!eth_current)       /* XXX no current */
449                 return;
450
451         act = getenv("ethact");
452         if (act != NULL) {
453                 old_current = eth_current;
454                 do {
455                         if (strcmp(eth_current->name, act) == 0)
456                                 return;
457                         eth_current = eth_current->next;
458                 } while (old_current != eth_current);
459         }
460
461         setenv("ethact", eth_current->name);
462 }
463 #endif
464
465 char *eth_get_name (void)
466 {
467         return (eth_current ? eth_current->name : "unknown");
468 }
469 #elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
470
471 extern int at91rm9200_miiphy_initialize(bd_t *bis);
472 extern int emac4xx_miiphy_initialize(bd_t *bis);
473 extern int mcf52x2_miiphy_initialize(bd_t *bis);
474 extern int ns7520_miiphy_initialize(bd_t *bis);
475
476 int eth_initialize(bd_t *bis)
477 {
478 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
479         miiphy_init();
480 #endif
481
482 #if defined(CONFIG_AT91RM9200)
483         at91rm9200_miiphy_initialize(bis);
484 #endif
485 #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
486         && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
487         emac4xx_miiphy_initialize(bis);
488 #endif
489 #if defined(CONFIG_MCF52x2)
490         mcf52x2_miiphy_initialize(bis);
491 #endif
492 #if defined(CONFIG_NETARM)
493         ns7520_miiphy_initialize(bis);
494 #endif
495         return 0;
496 }
497 #endif