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