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Commit | Line | Data |
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c609719b | 1 | /* |
05c3e68f | 2 | * (C) Copyright 2001-2015 |
c609719b | 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
05c3e68f | 4 | * Joe Hershberger, National Instruments |
c609719b | 5 | * |
1a459660 | 6 | * SPDX-License-Identifier: GPL-2.0+ |
c609719b WD |
7 | */ |
8 | ||
9 | #include <common.h> | |
10 | #include <command.h> | |
05c3e68f | 11 | #include <dm.h> |
c609719b | 12 | #include <net.h> |
d9785c14 | 13 | #include <miiphy.h> |
5f184715 | 14 | #include <phy.h> |
75d9a45c | 15 | #include <asm/errno.h> |
05c3e68f | 16 | #include <dm/device-internal.h> |
c609719b | 17 | |
d2eaec60 JH |
18 | DECLARE_GLOBAL_DATA_PTR; |
19 | ||
3f6e6993 MF |
20 | void eth_parse_enetaddr(const char *addr, uchar *enetaddr) |
21 | { | |
22 | char *end; | |
23 | int i; | |
24 | ||
25 | for (i = 0; i < 6; ++i) { | |
26 | enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0; | |
27 | if (addr) | |
28 | addr = (*end) ? end + 1 : end; | |
29 | } | |
30 | } | |
31 | ||
32 | int eth_getenv_enetaddr(char *name, uchar *enetaddr) | |
33 | { | |
34 | eth_parse_enetaddr(getenv(name), enetaddr); | |
0adb5b76 | 35 | return is_valid_ethaddr(enetaddr); |
3f6e6993 MF |
36 | } |
37 | ||
38 | int eth_setenv_enetaddr(char *name, const uchar *enetaddr) | |
39 | { | |
40 | char buf[20]; | |
41 | ||
42 | sprintf(buf, "%pM", enetaddr); | |
43 | ||
44 | return setenv(name, buf); | |
45 | } | |
86848a74 | 46 | |
7616e785 SG |
47 | int eth_getenv_enetaddr_by_index(const char *base_name, int index, |
48 | uchar *enetaddr) | |
86848a74 MF |
49 | { |
50 | char enetvar[32]; | |
7616e785 | 51 | sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index); |
86848a74 MF |
52 | return eth_getenv_enetaddr(enetvar, enetaddr); |
53 | } | |
3f6e6993 | 54 | |
154177e1 | 55 | static inline int eth_setenv_enetaddr_by_index(const char *base_name, int index, |
c88ef3c1 RH |
56 | uchar *enetaddr) |
57 | { | |
58 | char enetvar[32]; | |
59 | sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index); | |
60 | return eth_setenv_enetaddr(enetvar, enetaddr); | |
61 | } | |
62 | ||
84eb1fba JH |
63 | static void eth_env_init(void) |
64 | { | |
65 | const char *s; | |
66 | ||
67 | s = getenv("bootfile"); | |
68 | if (s != NULL) | |
1411157d JH |
69 | copy_filename(net_boot_file_name, s, |
70 | sizeof(net_boot_file_name)); | |
84eb1fba | 71 | } |
c88ef3c1 | 72 | |
ecee9324 BW |
73 | static int eth_mac_skip(int index) |
74 | { | |
75 | char enetvar[15]; | |
76 | char *skip_state; | |
ff819a3a | 77 | |
ecee9324 | 78 | sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index); |
ff819a3a JH |
79 | skip_state = getenv(enetvar); |
80 | return skip_state != NULL; | |
ecee9324 BW |
81 | } |
82 | ||
84eb1fba JH |
83 | static void eth_current_changed(void); |
84 | ||
05c3e68f JH |
85 | #ifdef CONFIG_DM_ETH |
86 | /** | |
87 | * struct eth_device_priv - private structure for each Ethernet device | |
88 | * | |
89 | * @state: The state of the Ethernet MAC driver (defined by enum eth_state_t) | |
90 | */ | |
91 | struct eth_device_priv { | |
92 | enum eth_state_t state; | |
93 | }; | |
94 | ||
95 | /** | |
96 | * struct eth_uclass_priv - The structure attached to the uclass itself | |
97 | * | |
98 | * @current: The Ethernet device that the network functions are using | |
99 | */ | |
100 | struct eth_uclass_priv { | |
101 | struct udevice *current; | |
102 | }; | |
103 | ||
60304592 JH |
104 | /* eth_errno - This stores the most recent failure code from DM functions */ |
105 | static int eth_errno; | |
106 | ||
05c3e68f JH |
107 | static struct eth_uclass_priv *eth_get_uclass_priv(void) |
108 | { | |
109 | struct uclass *uc; | |
110 | ||
111 | uclass_get(UCLASS_ETH, &uc); | |
112 | assert(uc); | |
113 | return uc->priv; | |
114 | } | |
115 | ||
116 | static void eth_set_current_to_next(void) | |
117 | { | |
118 | struct eth_uclass_priv *uc_priv; | |
119 | ||
120 | uc_priv = eth_get_uclass_priv(); | |
121 | if (uc_priv->current) | |
122 | uclass_next_device(&uc_priv->current); | |
123 | if (!uc_priv->current) | |
124 | uclass_first_device(UCLASS_ETH, &uc_priv->current); | |
125 | } | |
126 | ||
60304592 JH |
127 | /* |
128 | * Typically this will simply return the active device. | |
129 | * In the case where the most recent active device was unset, this will attempt | |
130 | * to return the first device. If that device doesn't exist or fails to probe, | |
131 | * this function will return NULL. | |
132 | */ | |
05c3e68f JH |
133 | struct udevice *eth_get_dev(void) |
134 | { | |
135 | struct eth_uclass_priv *uc_priv; | |
136 | ||
137 | uc_priv = eth_get_uclass_priv(); | |
138 | if (!uc_priv->current) | |
60304592 | 139 | eth_errno = uclass_first_device(UCLASS_ETH, |
05c3e68f JH |
140 | &uc_priv->current); |
141 | return uc_priv->current; | |
142 | } | |
143 | ||
60304592 JH |
144 | /* |
145 | * Typically this will just store a device pointer. | |
146 | * In case it was not probed, we will attempt to do so. | |
147 | * dev may be NULL to unset the active device. | |
148 | */ | |
05c3e68f JH |
149 | static void eth_set_dev(struct udevice *dev) |
150 | { | |
60304592 JH |
151 | if (dev && !device_active(dev)) |
152 | eth_errno = device_probe(dev); | |
05c3e68f JH |
153 | eth_get_uclass_priv()->current = dev; |
154 | } | |
155 | ||
e58780dc JH |
156 | /* |
157 | * Find the udevice that either has the name passed in as devname or has an | |
158 | * alias named devname. | |
159 | */ | |
160 | struct udevice *eth_get_dev_by_name(const char *devname) | |
161 | { | |
162 | int seq = -1; | |
163 | char *endp = NULL; | |
164 | const char *startp = NULL; | |
165 | struct udevice *it; | |
166 | struct uclass *uc; | |
167 | ||
168 | /* Must be longer than 3 to be an alias */ | |
169 | if (strlen(devname) > strlen("eth")) { | |
170 | startp = devname + strlen("eth"); | |
171 | seq = simple_strtoul(startp, &endp, 10); | |
172 | } | |
173 | ||
174 | uclass_get(UCLASS_ETH, &uc); | |
175 | uclass_foreach_dev(it, uc) { | |
60304592 JH |
176 | /* |
177 | * We need the seq to be valid, so try to probe it. | |
178 | * If the probe fails, the seq will not match since it will be | |
179 | * -1 instead of what we are looking for. | |
180 | * We don't care about errors from probe here. Either they won't | |
181 | * match an alias or it will match a literal name and we'll pick | |
182 | * up the error when we try to probe again in eth_set_dev(). | |
183 | */ | |
e58780dc JH |
184 | device_probe(it); |
185 | /* | |
186 | * Check for the name or the sequence number to match | |
187 | */ | |
188 | if (strcmp(it->name, devname) == 0 || | |
189 | (endp > startp && it->seq == seq)) | |
190 | return it; | |
191 | } | |
192 | ||
193 | return NULL; | |
194 | } | |
195 | ||
05c3e68f JH |
196 | unsigned char *eth_get_ethaddr(void) |
197 | { | |
198 | struct eth_pdata *pdata; | |
199 | ||
200 | if (eth_get_dev()) { | |
201 | pdata = eth_get_dev()->platdata; | |
202 | return pdata->enetaddr; | |
203 | } | |
204 | ||
205 | return NULL; | |
206 | } | |
207 | ||
208 | /* Set active state without calling start on the driver */ | |
209 | int eth_init_state_only(void) | |
210 | { | |
211 | struct udevice *current; | |
212 | struct eth_device_priv *priv; | |
213 | ||
214 | current = eth_get_dev(); | |
215 | if (!current || !device_active(current)) | |
216 | return -EINVAL; | |
217 | ||
218 | priv = current->uclass_priv; | |
219 | priv->state = ETH_STATE_ACTIVE; | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | /* Set passive state without calling stop on the driver */ | |
225 | void eth_halt_state_only(void) | |
226 | { | |
227 | struct udevice *current; | |
228 | struct eth_device_priv *priv; | |
229 | ||
230 | current = eth_get_dev(); | |
231 | if (!current || !device_active(current)) | |
232 | return; | |
233 | ||
234 | priv = current->uclass_priv; | |
235 | priv->state = ETH_STATE_PASSIVE; | |
236 | } | |
237 | ||
238 | int eth_get_dev_index(void) | |
239 | { | |
240 | if (eth_get_dev()) | |
241 | return eth_get_dev()->seq; | |
242 | return -1; | |
243 | } | |
244 | ||
245 | int eth_init(void) | |
246 | { | |
247 | struct udevice *current; | |
248 | struct udevice *old_current; | |
60304592 | 249 | int ret = -ENODEV; |
05c3e68f JH |
250 | |
251 | current = eth_get_dev(); | |
252 | if (!current) { | |
253 | printf("No ethernet found.\n"); | |
254 | return -ENODEV; | |
255 | } | |
256 | ||
257 | old_current = current; | |
258 | do { | |
259 | debug("Trying %s\n", current->name); | |
260 | ||
261 | if (device_active(current)) { | |
262 | uchar env_enetaddr[6]; | |
263 | struct eth_pdata *pdata = current->platdata; | |
264 | ||
265 | /* Sync environment with network device */ | |
266 | if (eth_getenv_enetaddr_by_index("eth", current->seq, | |
267 | env_enetaddr)) | |
268 | memcpy(pdata->enetaddr, env_enetaddr, 6); | |
269 | else | |
270 | memset(pdata->enetaddr, 0, 6); | |
271 | ||
60304592 JH |
272 | ret = eth_get_ops(current)->start(current); |
273 | if (ret >= 0) { | |
05c3e68f JH |
274 | struct eth_device_priv *priv = |
275 | current->uclass_priv; | |
276 | ||
277 | priv->state = ETH_STATE_ACTIVE; | |
278 | return 0; | |
279 | } | |
ff819a3a | 280 | } else { |
60304592 | 281 | ret = eth_errno; |
ff819a3a | 282 | } |
60304592 | 283 | |
05c3e68f JH |
284 | debug("FAIL\n"); |
285 | ||
60304592 JH |
286 | /* |
287 | * If ethrotate is enabled, this will change "current", | |
288 | * otherwise we will drop out of this while loop immediately | |
289 | */ | |
05c3e68f | 290 | eth_try_another(0); |
60304592 | 291 | /* This will ensure the new "current" attempted to probe */ |
05c3e68f JH |
292 | current = eth_get_dev(); |
293 | } while (old_current != current); | |
294 | ||
60304592 | 295 | return ret; |
05c3e68f JH |
296 | } |
297 | ||
298 | void eth_halt(void) | |
299 | { | |
300 | struct udevice *current; | |
301 | struct eth_device_priv *priv; | |
302 | ||
303 | current = eth_get_dev(); | |
304 | if (!current || !device_active(current)) | |
305 | return; | |
306 | ||
307 | eth_get_ops(current)->stop(current); | |
308 | priv = current->uclass_priv; | |
309 | priv->state = ETH_STATE_PASSIVE; | |
310 | } | |
311 | ||
312 | int eth_send(void *packet, int length) | |
313 | { | |
314 | struct udevice *current; | |
60304592 | 315 | int ret; |
05c3e68f JH |
316 | |
317 | current = eth_get_dev(); | |
318 | if (!current) | |
319 | return -ENODEV; | |
320 | ||
321 | if (!device_active(current)) | |
322 | return -EINVAL; | |
323 | ||
60304592 JH |
324 | ret = eth_get_ops(current)->send(current, packet, length); |
325 | if (ret < 0) { | |
326 | /* We cannot completely return the error at present */ | |
327 | debug("%s: send() returned error %d\n", __func__, ret); | |
328 | } | |
329 | return ret; | |
05c3e68f JH |
330 | } |
331 | ||
332 | int eth_rx(void) | |
333 | { | |
334 | struct udevice *current; | |
17591405 JH |
335 | uchar *packet; |
336 | int ret; | |
337 | int i; | |
05c3e68f JH |
338 | |
339 | current = eth_get_dev(); | |
340 | if (!current) | |
341 | return -ENODEV; | |
342 | ||
343 | if (!device_active(current)) | |
344 | return -EINVAL; | |
345 | ||
17591405 JH |
346 | /* Process up to 32 packets at one time */ |
347 | for (i = 0; i < 32; i++) { | |
348 | ret = eth_get_ops(current)->recv(current, &packet); | |
349 | if (ret > 0) | |
350 | net_process_received_packet(packet, ret); | |
63c9729a JH |
351 | if (ret >= 0 && eth_get_ops(current)->free_pkt) |
352 | eth_get_ops(current)->free_pkt(current, packet, ret); | |
353 | if (ret <= 0) | |
17591405 JH |
354 | break; |
355 | } | |
356 | if (ret == -EAGAIN) | |
357 | ret = 0; | |
60304592 JH |
358 | if (ret < 0) { |
359 | /* We cannot completely return the error at present */ | |
360 | debug("%s: recv() returned error %d\n", __func__, ret); | |
361 | } | |
17591405 | 362 | return ret; |
05c3e68f JH |
363 | } |
364 | ||
365 | static int eth_write_hwaddr(struct udevice *dev) | |
366 | { | |
367 | struct eth_pdata *pdata = dev->platdata; | |
368 | int ret = 0; | |
369 | ||
370 | if (!dev || !device_active(dev)) | |
371 | return -EINVAL; | |
372 | ||
373 | /* seq is valid since the device is active */ | |
374 | if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev->seq)) { | |
0adb5b76 | 375 | if (!is_valid_ethaddr(pdata->enetaddr)) { |
05c3e68f JH |
376 | printf("\nError: %s address %pM illegal value\n", |
377 | dev->name, pdata->enetaddr); | |
378 | return -EINVAL; | |
379 | } | |
380 | ||
381 | ret = eth_get_ops(dev)->write_hwaddr(dev); | |
382 | if (ret) | |
383 | printf("\nWarning: %s failed to set MAC address\n", | |
384 | dev->name); | |
385 | } | |
386 | ||
387 | return ret; | |
388 | } | |
389 | ||
390 | int eth_initialize(void) | |
391 | { | |
392 | int num_devices = 0; | |
393 | struct udevice *dev; | |
394 | ||
395 | bootstage_mark(BOOTSTAGE_ID_NET_ETH_START); | |
396 | eth_env_init(); | |
397 | ||
398 | /* | |
399 | * Devices need to write the hwaddr even if not started so that Linux | |
400 | * will have access to the hwaddr that u-boot stored for the device. | |
401 | * This is accomplished by attempting to probe each device and calling | |
402 | * their write_hwaddr() operation. | |
403 | */ | |
404 | uclass_first_device(UCLASS_ETH, &dev); | |
405 | if (!dev) { | |
406 | printf("No ethernet found.\n"); | |
407 | bootstage_error(BOOTSTAGE_ID_NET_ETH_START); | |
408 | } else { | |
6536b9bb JH |
409 | char *ethprime = getenv("ethprime"); |
410 | struct udevice *prime_dev = NULL; | |
411 | ||
412 | if (ethprime) | |
413 | prime_dev = eth_get_dev_by_name(ethprime); | |
414 | if (prime_dev) { | |
415 | eth_set_dev(prime_dev); | |
416 | eth_current_changed(); | |
417 | } else { | |
418 | eth_set_dev(NULL); | |
419 | } | |
420 | ||
05c3e68f JH |
421 | bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT); |
422 | do { | |
423 | if (num_devices) | |
424 | printf(", "); | |
425 | ||
426 | printf("eth%d: %s", dev->seq, dev->name); | |
427 | ||
6536b9bb JH |
428 | if (ethprime && dev == prime_dev) |
429 | printf(" [PRIME]"); | |
430 | ||
05c3e68f JH |
431 | eth_write_hwaddr(dev); |
432 | ||
433 | uclass_next_device(&dev); | |
434 | num_devices++; | |
435 | } while (dev); | |
436 | ||
437 | putc('\n'); | |
438 | } | |
439 | ||
440 | return num_devices; | |
441 | } | |
442 | ||
443 | static int eth_post_bind(struct udevice *dev) | |
444 | { | |
445 | if (strchr(dev->name, ' ')) { | |
446 | printf("\nError: eth device name \"%s\" has a space!\n", | |
447 | dev->name); | |
448 | return -EINVAL; | |
449 | } | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | static int eth_pre_unbind(struct udevice *dev) | |
455 | { | |
456 | /* Don't hang onto a pointer that is going away */ | |
457 | if (dev == eth_get_uclass_priv()->current) | |
458 | eth_set_dev(NULL); | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static int eth_post_probe(struct udevice *dev) | |
464 | { | |
465 | struct eth_device_priv *priv = dev->uclass_priv; | |
466 | struct eth_pdata *pdata = dev->platdata; | |
467 | unsigned char env_enetaddr[6]; | |
468 | ||
469 | priv->state = ETH_STATE_INIT; | |
470 | ||
471 | /* Check if the device has a MAC address in ROM */ | |
472 | if (eth_get_ops(dev)->read_rom_hwaddr) | |
473 | eth_get_ops(dev)->read_rom_hwaddr(dev); | |
474 | ||
475 | eth_getenv_enetaddr_by_index("eth", dev->seq, env_enetaddr); | |
0adb5b76 JH |
476 | if (!is_zero_ethaddr(env_enetaddr)) { |
477 | if (!is_zero_ethaddr(pdata->enetaddr) && | |
05c3e68f JH |
478 | memcmp(pdata->enetaddr, env_enetaddr, 6)) { |
479 | printf("\nWarning: %s MAC addresses don't match:\n", | |
480 | dev->name); | |
481 | printf("Address in SROM is %pM\n", | |
482 | pdata->enetaddr); | |
483 | printf("Address in environment is %pM\n", | |
484 | env_enetaddr); | |
485 | } | |
486 | ||
487 | /* Override the ROM MAC address */ | |
488 | memcpy(pdata->enetaddr, env_enetaddr, 6); | |
0adb5b76 | 489 | } else if (is_valid_ethaddr(pdata->enetaddr)) { |
05c3e68f JH |
490 | eth_setenv_enetaddr_by_index("eth", dev->seq, pdata->enetaddr); |
491 | printf("\nWarning: %s using MAC address from ROM\n", | |
492 | dev->name); | |
0adb5b76 | 493 | } else if (is_zero_ethaddr(pdata->enetaddr)) { |
05c3e68f JH |
494 | printf("\nError: %s address not set.\n", |
495 | dev->name); | |
496 | return -EINVAL; | |
497 | } | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static int eth_pre_remove(struct udevice *dev) | |
503 | { | |
504 | eth_get_ops(dev)->stop(dev); | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | UCLASS_DRIVER(eth) = { | |
510 | .name = "eth", | |
511 | .id = UCLASS_ETH, | |
512 | .post_bind = eth_post_bind, | |
513 | .pre_unbind = eth_pre_unbind, | |
514 | .post_probe = eth_post_probe, | |
515 | .pre_remove = eth_pre_remove, | |
516 | .priv_auto_alloc_size = sizeof(struct eth_uclass_priv), | |
517 | .per_device_auto_alloc_size = sizeof(struct eth_device_priv), | |
e58780dc | 518 | .flags = DM_UC_FLAG_SEQ_ALIAS, |
05c3e68f JH |
519 | }; |
520 | #endif | |
521 | ||
522 | #ifndef CONFIG_DM_ETH | |
dd35479a BW |
523 | /* |
524 | * CPU and board-specific Ethernet initializations. Aliased function | |
525 | * signals caller to move on | |
526 | */ | |
527 | static int __def_eth_init(bd_t *bis) | |
528 | { | |
529 | return -1; | |
530 | } | |
f9a109b3 PT |
531 | int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init"))); |
532 | int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init"))); | |
dd35479a | 533 | |
f85b6071 | 534 | #ifdef CONFIG_API |
f85b6071 RJ |
535 | static struct { |
536 | uchar data[PKTSIZE]; | |
537 | int length; | |
538 | } eth_rcv_bufs[PKTBUFSRX]; | |
539 | ||
66c7385a | 540 | static unsigned int eth_rcv_current, eth_rcv_last; |
f85b6071 RJ |
541 | #endif |
542 | ||
f8be7d65 JH |
543 | static struct eth_device *eth_devices; |
544 | struct eth_device *eth_current; | |
c609719b | 545 | |
84eb1fba JH |
546 | static void eth_set_current_to_next(void) |
547 | { | |
548 | eth_current = eth_current->next; | |
549 | } | |
550 | ||
e58780dc JH |
551 | static void eth_set_dev(struct eth_device *dev) |
552 | { | |
553 | eth_current = dev; | |
554 | } | |
555 | ||
d7fb9bcf | 556 | struct eth_device *eth_get_dev_by_name(const char *devname) |
63ff004c MB |
557 | { |
558 | struct eth_device *dev, *target_dev; | |
559 | ||
7e7f903f HR |
560 | BUG_ON(devname == NULL); |
561 | ||
63ff004c MB |
562 | if (!eth_devices) |
563 | return NULL; | |
564 | ||
565 | dev = eth_devices; | |
566 | target_dev = NULL; | |
567 | do { | |
568 | if (strcmp(devname, dev->name) == 0) { | |
569 | target_dev = dev; | |
570 | break; | |
571 | } | |
572 | dev = dev->next; | |
573 | } while (dev != eth_devices); | |
574 | ||
575 | return target_dev; | |
576 | } | |
577 | ||
9e56986a AF |
578 | struct eth_device *eth_get_dev_by_index(int index) |
579 | { | |
580 | struct eth_device *dev, *target_dev; | |
9e56986a AF |
581 | |
582 | if (!eth_devices) | |
583 | return NULL; | |
584 | ||
585 | dev = eth_devices; | |
586 | target_dev = NULL; | |
587 | do { | |
fea7dcae | 588 | if (dev->index == index) { |
9e56986a AF |
589 | target_dev = dev; |
590 | break; | |
591 | } | |
592 | dev = dev->next; | |
9e56986a AF |
593 | } while (dev != eth_devices); |
594 | ||
595 | return target_dev; | |
596 | } | |
597 | ||
66c7385a | 598 | int eth_get_dev_index(void) |
c609719b | 599 | { |
66c7385a | 600 | if (!eth_current) |
fea7dcae | 601 | return -1; |
c609719b | 602 | |
fea7dcae | 603 | return eth_current->index; |
c609719b WD |
604 | } |
605 | ||
7616e785 SG |
606 | int eth_write_hwaddr(struct eth_device *dev, const char *base_name, |
607 | int eth_number) | |
608 | { | |
609 | unsigned char env_enetaddr[6]; | |
610 | int ret = 0; | |
611 | ||
69376644 | 612 | eth_getenv_enetaddr_by_index(base_name, eth_number, env_enetaddr); |
7616e785 | 613 | |
0adb5b76 JH |
614 | if (!is_zero_ethaddr(env_enetaddr)) { |
615 | if (!is_zero_ethaddr(dev->enetaddr) && | |
4c7c65af | 616 | memcmp(dev->enetaddr, env_enetaddr, 6)) { |
7616e785 | 617 | printf("\nWarning: %s MAC addresses don't match:\n", |
ff819a3a | 618 | dev->name); |
7616e785 | 619 | printf("Address in SROM is %pM\n", |
ff819a3a | 620 | dev->enetaddr); |
7616e785 | 621 | printf("Address in environment is %pM\n", |
ff819a3a | 622 | env_enetaddr); |
7616e785 SG |
623 | } |
624 | ||
625 | memcpy(dev->enetaddr, env_enetaddr, 6); | |
0adb5b76 | 626 | } else if (is_valid_ethaddr(dev->enetaddr)) { |
c88ef3c1 RH |
627 | eth_setenv_enetaddr_by_index(base_name, eth_number, |
628 | dev->enetaddr); | |
629 | printf("\nWarning: %s using MAC address from net device\n", | |
ff819a3a | 630 | dev->name); |
0adb5b76 | 631 | } else if (is_zero_ethaddr(dev->enetaddr)) { |
75d9a45c PM |
632 | printf("\nError: %s address not set.\n", |
633 | dev->name); | |
634 | return -EINVAL; | |
7616e785 SG |
635 | } |
636 | ||
75d9a45c | 637 | if (dev->write_hwaddr && !eth_mac_skip(eth_number)) { |
0adb5b76 | 638 | if (!is_valid_ethaddr(dev->enetaddr)) { |
75d9a45c | 639 | printf("\nError: %s address %pM illegal value\n", |
ff819a3a | 640 | dev->name, dev->enetaddr); |
75d9a45c PM |
641 | return -EINVAL; |
642 | } | |
460f949f | 643 | |
7616e785 | 644 | ret = dev->write_hwaddr(dev); |
75d9a45c | 645 | if (ret) |
ff819a3a JH |
646 | printf("\nWarning: %s failed to set MAC address\n", |
647 | dev->name); | |
460f949f | 648 | } |
7616e785 SG |
649 | |
650 | return ret; | |
651 | } | |
652 | ||
89d48367 SG |
653 | int eth_register(struct eth_device *dev) |
654 | { | |
655 | struct eth_device *d; | |
66c7385a | 656 | static int index; |
58c583b6 | 657 | |
f6add132 | 658 | assert(strlen(dev->name) < sizeof(dev->name)); |
58c583b6 | 659 | |
89d48367 | 660 | if (!eth_devices) { |
ff819a3a JH |
661 | eth_devices = dev; |
662 | eth_current = dev; | |
89d48367 | 663 | eth_current_changed(); |
c609719b | 664 | } else { |
66c7385a | 665 | for (d = eth_devices; d->next != eth_devices; d = d->next) |
aba4b69d | 666 | ; |
c609719b WD |
667 | d->next = dev; |
668 | } | |
669 | ||
670 | dev->state = ETH_STATE_INIT; | |
671 | dev->next = eth_devices; | |
fea7dcae | 672 | dev->index = index++; |
c609719b WD |
673 | |
674 | return 0; | |
675 | } | |
676 | ||
e7e982d6 VP |
677 | int eth_unregister(struct eth_device *dev) |
678 | { | |
679 | struct eth_device *cur; | |
680 | ||
681 | /* No device */ | |
682 | if (!eth_devices) | |
05324a48 | 683 | return -ENODEV; |
e7e982d6 VP |
684 | |
685 | for (cur = eth_devices; cur->next != eth_devices && cur->next != dev; | |
686 | cur = cur->next) | |
687 | ; | |
688 | ||
689 | /* Device not found */ | |
690 | if (cur->next != dev) | |
05324a48 | 691 | return -ENODEV; |
e7e982d6 VP |
692 | |
693 | cur->next = dev->next; | |
694 | ||
695 | if (eth_devices == dev) | |
696 | eth_devices = dev->next == eth_devices ? NULL : dev->next; | |
697 | ||
698 | if (eth_current == dev) { | |
699 | eth_current = eth_devices; | |
700 | eth_current_changed(); | |
701 | } | |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
d2eaec60 | 706 | int eth_initialize(void) |
c609719b | 707 | { |
fea7dcae | 708 | int num_devices = 0; |
c609719b WD |
709 | eth_devices = NULL; |
710 | eth_current = NULL; | |
711 | ||
770605e4 | 712 | bootstage_mark(BOOTSTAGE_ID_NET_ETH_START); |
27ee59af | 713 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) |
d9785c14 MB |
714 | miiphy_init(); |
715 | #endif | |
5f184715 AF |
716 | |
717 | #ifdef CONFIG_PHYLIB | |
718 | phy_init(); | |
719 | #endif | |
720 | ||
84eb1fba | 721 | eth_env_init(); |
de30122b | 722 | |
8ad25bf8 BW |
723 | /* |
724 | * If board-specific initialization exists, call it. | |
725 | * If not, call a CPU-specific one | |
726 | */ | |
727 | if (board_eth_init != __def_eth_init) { | |
d2eaec60 | 728 | if (board_eth_init(gd->bd) < 0) |
8ad25bf8 BW |
729 | printf("Board Net Initialization Failed\n"); |
730 | } else if (cpu_eth_init != __def_eth_init) { | |
d2eaec60 | 731 | if (cpu_eth_init(gd->bd) < 0) |
8ad25bf8 | 732 | printf("CPU Net Initialization Failed\n"); |
ff819a3a | 733 | } else { |
8ad25bf8 | 734 | printf("Net Initialization Skipped\n"); |
ff819a3a | 735 | } |
d9785c14 | 736 | |
c609719b | 737 | if (!eth_devices) { |
66c7385a | 738 | puts("No ethernet found.\n"); |
770605e4 | 739 | bootstage_error(BOOTSTAGE_ID_NET_ETH_START); |
c609719b WD |
740 | } else { |
741 | struct eth_device *dev = eth_devices; | |
66c7385a | 742 | char *ethprime = getenv("ethprime"); |
c609719b | 743 | |
770605e4 | 744 | bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT); |
c609719b | 745 | do { |
fea7dcae | 746 | if (dev->index) |
66c7385a | 747 | puts(", "); |
c609719b WD |
748 | |
749 | printf("%s", dev->name); | |
750 | ||
66c7385a | 751 | if (ethprime && strcmp(dev->name, ethprime) == 0) { |
c609719b | 752 | eth_current = dev; |
66c7385a | 753 | puts(" [PRIME]"); |
c609719b WD |
754 | } |
755 | ||
1384f3bb | 756 | if (strchr(dev->name, ' ')) |
66c7385a JH |
757 | puts("\nWarning: eth device name has a space!" |
758 | "\n"); | |
1384f3bb | 759 | |
75d9a45c | 760 | eth_write_hwaddr(dev, "eth", dev->index); |
c609719b | 761 | |
c609719b | 762 | dev = dev->next; |
fea7dcae | 763 | num_devices++; |
66c7385a | 764 | } while (dev != eth_devices); |
c609719b | 765 | |
89d48367 | 766 | eth_current_changed(); |
66c7385a | 767 | putc('\n'); |
c609719b WD |
768 | } |
769 | ||
fea7dcae | 770 | return num_devices; |
c609719b WD |
771 | } |
772 | ||
53a5c424 DU |
773 | #ifdef CONFIG_MCAST_TFTP |
774 | /* Multicast. | |
775 | * mcast_addr: multicast ipaddr from which multicast Mac is made | |
85eb5caf | 776 | * join: 1=join, 0=leave. |
53a5c424 | 777 | */ |
049a95a7 | 778 | int eth_mcast_join(struct in_addr mcast_ip, int join) |
53a5c424 | 779 | { |
66c7385a | 780 | u8 mcast_mac[6]; |
85eb5caf | 781 | if (!eth_current || !eth_current->mcast) |
53a5c424 | 782 | return -1; |
049a95a7 JH |
783 | mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff; |
784 | mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff; | |
785 | mcast_mac[3] = (htonl(mcast_ip.s_addr)>>16) & 0x7f; | |
53a5c424 DU |
786 | mcast_mac[2] = 0x5e; |
787 | mcast_mac[1] = 0x0; | |
788 | mcast_mac[0] = 0x1; | |
789 | return eth_current->mcast(eth_current, mcast_mac, join); | |
790 | } | |
791 | ||
85eb5caf WD |
792 | /* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c |
793 | * and this is the ethernet-crc method needed for TSEC -- and perhaps | |
53a5c424 DU |
794 | * some other adapter -- hash tables |
795 | */ | |
796 | #define CRCPOLY_LE 0xedb88320 | |
66c7385a | 797 | u32 ether_crc(size_t len, unsigned char const *p) |
53a5c424 DU |
798 | { |
799 | int i; | |
800 | u32 crc; | |
801 | crc = ~0; | |
802 | while (len--) { | |
803 | crc ^= *p++; | |
804 | for (i = 0; i < 8; i++) | |
805 | crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); | |
806 | } | |
807 | /* an reverse the bits, cuz of way they arrive -- last-first */ | |
808 | crc = (crc >> 16) | (crc << 16); | |
809 | crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00); | |
810 | crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0); | |
811 | crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc); | |
812 | crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa); | |
813 | return crc; | |
814 | } | |
815 | ||
816 | #endif | |
817 | ||
c609719b | 818 | |
d2eaec60 | 819 | int eth_init(void) |
c609719b | 820 | { |
86848a74 | 821 | struct eth_device *old_current, *dev; |
c609719b | 822 | |
6bc11388 | 823 | if (!eth_current) { |
66c7385a | 824 | puts("No ethernet found.\n"); |
05324a48 | 825 | return -ENODEV; |
6bc11388 | 826 | } |
c609719b | 827 | |
86848a74 | 828 | /* Sync environment with network devices */ |
86848a74 MF |
829 | dev = eth_devices; |
830 | do { | |
831 | uchar env_enetaddr[6]; | |
832 | ||
fea7dcae | 833 | if (eth_getenv_enetaddr_by_index("eth", dev->index, |
7616e785 | 834 | env_enetaddr)) |
86848a74 MF |
835 | memcpy(dev->enetaddr, env_enetaddr, 6); |
836 | ||
86848a74 MF |
837 | dev = dev->next; |
838 | } while (dev != eth_devices); | |
839 | ||
c609719b WD |
840 | old_current = eth_current; |
841 | do { | |
0ebf04c6 | 842 | debug("Trying %s\n", eth_current->name); |
c609719b | 843 | |
d2eaec60 | 844 | if (eth_current->init(eth_current, gd->bd) >= 0) { |
c609719b WD |
845 | eth_current->state = ETH_STATE_ACTIVE; |
846 | ||
505be87a | 847 | return 0; |
c609719b | 848 | } |
0ebf04c6 | 849 | debug("FAIL\n"); |
c609719b WD |
850 | |
851 | eth_try_another(0); | |
852 | } while (old_current != eth_current); | |
853 | ||
05324a48 | 854 | return -ETIMEDOUT; |
c609719b WD |
855 | } |
856 | ||
857 | void eth_halt(void) | |
858 | { | |
859 | if (!eth_current) | |
860 | return; | |
861 | ||
862 | eth_current->halt(eth_current); | |
863 | ||
864 | eth_current->state = ETH_STATE_PASSIVE; | |
865 | } | |
866 | ||
db288a96 | 867 | int eth_send(void *packet, int length) |
c609719b WD |
868 | { |
869 | if (!eth_current) | |
05324a48 | 870 | return -ENODEV; |
c609719b WD |
871 | |
872 | return eth_current->send(eth_current, packet, length); | |
873 | } | |
874 | ||
875 | int eth_rx(void) | |
876 | { | |
877 | if (!eth_current) | |
05324a48 | 878 | return -ENODEV; |
c609719b WD |
879 | |
880 | return eth_current->recv(eth_current); | |
881 | } | |
05c3e68f | 882 | #endif /* ifndef CONFIG_DM_ETH */ |
c609719b | 883 | |
f85b6071 | 884 | #ifdef CONFIG_API |
db288a96 | 885 | static void eth_save_packet(void *packet, int length) |
f85b6071 | 886 | { |
db288a96 | 887 | char *p = packet; |
f85b6071 RJ |
888 | int i; |
889 | ||
890 | if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current) | |
891 | return; | |
892 | ||
893 | if (PKTSIZE < length) | |
894 | return; | |
895 | ||
896 | for (i = 0; i < length; i++) | |
897 | eth_rcv_bufs[eth_rcv_last].data[i] = p[i]; | |
898 | ||
899 | eth_rcv_bufs[eth_rcv_last].length = length; | |
900 | eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX; | |
901 | } | |
902 | ||
db288a96 | 903 | int eth_receive(void *packet, int length) |
f85b6071 | 904 | { |
db288a96 | 905 | char *p = packet; |
f85b6071 RJ |
906 | void *pp = push_packet; |
907 | int i; | |
908 | ||
909 | if (eth_rcv_current == eth_rcv_last) { | |
910 | push_packet = eth_save_packet; | |
911 | eth_rx(); | |
912 | push_packet = pp; | |
913 | ||
914 | if (eth_rcv_current == eth_rcv_last) | |
915 | return -1; | |
916 | } | |
917 | ||
46c07bcf | 918 | length = min(eth_rcv_bufs[eth_rcv_current].length, length); |
f85b6071 RJ |
919 | |
920 | for (i = 0; i < length; i++) | |
921 | p[i] = eth_rcv_bufs[eth_rcv_current].data[i]; | |
922 | ||
923 | eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX; | |
924 | return length; | |
925 | } | |
926 | #endif /* CONFIG_API */ | |
927 | ||
84eb1fba JH |
928 | static void eth_current_changed(void) |
929 | { | |
930 | char *act = getenv("ethact"); | |
931 | /* update current ethernet name */ | |
932 | if (eth_get_dev()) { | |
933 | if (act == NULL || strcmp(act, eth_get_name()) != 0) | |
934 | setenv("ethact", eth_get_name()); | |
935 | } | |
936 | /* | |
937 | * remove the variable completely if there is no active | |
938 | * interface | |
939 | */ | |
940 | else if (act != NULL) | |
941 | setenv("ethact", NULL); | |
942 | } | |
943 | ||
c609719b WD |
944 | void eth_try_another(int first_restart) |
945 | { | |
05c3e68f | 946 | static void *first_failed; |
c650e1be | 947 | char *ethrotate; |
e1692577 MF |
948 | |
949 | /* | |
950 | * Do not rotate between network interfaces when | |
951 | * 'ethrotate' variable is set to 'no'. | |
952 | */ | |
66c7385a JH |
953 | ethrotate = getenv("ethrotate"); |
954 | if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) | |
e1692577 | 955 | return; |
c609719b | 956 | |
84eb1fba | 957 | if (!eth_get_dev()) |
c609719b WD |
958 | return; |
959 | ||
66c7385a | 960 | if (first_restart) |
84eb1fba | 961 | first_failed = eth_get_dev(); |
c609719b | 962 | |
84eb1fba | 963 | eth_set_current_to_next(); |
c609719b | 964 | |
89d48367 | 965 | eth_current_changed(); |
a3d991bd | 966 | |
84eb1fba | 967 | if (first_failed == eth_get_dev()) |
bc0571fc | 968 | net_restart_wrap = 1; |
c609719b WD |
969 | } |
970 | ||
a3d991bd WD |
971 | void eth_set_current(void) |
972 | { | |
66c7385a JH |
973 | static char *act; |
974 | static int env_changed_id; | |
2f70c49e | 975 | int env_id; |
a3d991bd | 976 | |
2f70c49e HS |
977 | env_id = get_env_id(); |
978 | if ((act == NULL) || (env_changed_id != env_id)) { | |
979 | act = getenv("ethact"); | |
980 | env_changed_id = env_id; | |
981 | } | |
6536b9bb JH |
982 | |
983 | if (act == NULL) { | |
984 | char *ethprime = getenv("ethprime"); | |
985 | void *dev = NULL; | |
986 | ||
987 | if (ethprime) | |
988 | dev = eth_get_dev_by_name(ethprime); | |
989 | if (dev) | |
990 | eth_set_dev(dev); | |
991 | else | |
992 | eth_set_dev(NULL); | |
993 | } else { | |
e58780dc | 994 | eth_set_dev(eth_get_dev_by_name(act)); |
6536b9bb | 995 | } |
a3d991bd | 996 | |
89d48367 | 997 | eth_current_changed(); |
a3d991bd | 998 | } |
a3d991bd | 999 | |
84eb1fba | 1000 | const char *eth_get_name(void) |
5bb226e8 | 1001 | { |
84eb1fba | 1002 | return eth_get_dev() ? eth_get_dev()->name : "unknown"; |
5bb226e8 | 1003 | } |