blob: c393600fabcda95f04c6820ac4c7cad260b740ad [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glassdb9391e2016-01-17 14:52:00 -07002/*
3 * (C) Copyright 2001-2015
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Joe Hershberger, National Instruments
Simon Glassdb9391e2016-01-17 14:52:00 -07006 */
7
Patrick Delaunay79d191e2021-07-20 20:15:30 +02008#define LOG_CATEGORY UCLASS_ETH
9
Simon Glassdb9391e2016-01-17 14:52:00 -070010#include <common.h>
Simon Glass4fd8d072022-04-24 23:31:15 -060011#include <bootdev.h>
Simon Glass52f24232020-05-10 11:40:00 -060012#include <bootstage.h>
Simon Glassdb9391e2016-01-17 14:52:00 -070013#include <dm.h>
Simon Glass9fb625c2019-08-01 09:46:51 -060014#include <env.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060015#include <log.h>
Simon Glassdb9391e2016-01-17 14:52:00 -070016#include <net.h>
Sean Anderson97d0f9b2022-05-05 13:11:41 -040017#include <nvmem.h>
Simon Glass401d1c42020-10-30 21:38:53 -060018#include <asm/global_data.h>
Simon Glassdb9391e2016-01-17 14:52:00 -070019#include <dm/device-internal.h>
20#include <dm/uclass-internal.h>
Ramon Fried3eaac632019-07-18 21:43:30 +030021#include <net/pcap.h>
Simon Glassdb9391e2016-01-17 14:52:00 -070022#include "eth_internal.h"
Ye Li5fe419e2020-05-03 22:41:14 +080023#include <eth_phy.h>
Simon Glassdb9391e2016-01-17 14:52:00 -070024
Simon Glassa7c45ec2016-01-30 15:45:14 -070025DECLARE_GLOBAL_DATA_PTR;
26
Simon Glassdb9391e2016-01-17 14:52:00 -070027/**
28 * struct eth_device_priv - private structure for each Ethernet device
29 *
30 * @state: The state of the Ethernet MAC driver (defined by enum eth_state_t)
31 */
32struct eth_device_priv {
33 enum eth_state_t state;
Matthias Schifferfa795f42020-11-04 14:45:14 +010034 bool running;
Simon Glassdb9391e2016-01-17 14:52:00 -070035};
36
37/**
38 * struct eth_uclass_priv - The structure attached to the uclass itself
39 *
40 * @current: The Ethernet device that the network functions are using
Simon Glass70dd8862023-01-17 10:47:28 -070041 * @no_bootdevs: true to skip binding Ethernet bootdevs (this is a negative flag
42 * so that the default value enables it)
Simon Glassdb9391e2016-01-17 14:52:00 -070043 */
44struct eth_uclass_priv {
45 struct udevice *current;
Simon Glass70dd8862023-01-17 10:47:28 -070046 bool no_bootdevs;
Simon Glassdb9391e2016-01-17 14:52:00 -070047};
48
49/* eth_errno - This stores the most recent failure code from DM functions */
50static int eth_errno;
51
Marek Vasut6c7e5592023-03-06 15:53:42 +010052/* board-specific Ethernet Interface initializations. */
53__weak int board_interface_eth_init(struct udevice *dev,
54 phy_interface_t interface_type)
55{
56 return 0;
57}
58
Simon Glassdb9391e2016-01-17 14:52:00 -070059static struct eth_uclass_priv *eth_get_uclass_priv(void)
60{
61 struct uclass *uc;
Peng Fand2b70202020-05-03 22:41:13 +080062 int ret;
Simon Glassdb9391e2016-01-17 14:52:00 -070063
Peng Fand2b70202020-05-03 22:41:13 +080064 ret = uclass_get(UCLASS_ETH, &uc);
65 if (ret)
66 return NULL;
67
Simon Glassdb9391e2016-01-17 14:52:00 -070068 assert(uc);
Simon Glass0fd3d912020-12-22 19:30:28 -070069 return uclass_get_priv(uc);
Simon Glassdb9391e2016-01-17 14:52:00 -070070}
71
Simon Glass70dd8862023-01-17 10:47:28 -070072void eth_set_enable_bootdevs(bool enable)
73{
74 struct eth_uclass_priv *priv = eth_get_uclass_priv();
75
76 if (priv)
77 priv->no_bootdevs = !enable;
78}
79
Simon Glassdb9391e2016-01-17 14:52:00 -070080void eth_set_current_to_next(void)
81{
82 struct eth_uclass_priv *uc_priv;
83
84 uc_priv = eth_get_uclass_priv();
85 if (uc_priv->current)
86 uclass_next_device(&uc_priv->current);
87 if (!uc_priv->current)
88 uclass_first_device(UCLASS_ETH, &uc_priv->current);
89}
90
91/*
92 * Typically this will simply return the active device.
93 * In the case where the most recent active device was unset, this will attempt
Michael Walle6e424b42021-02-24 17:30:44 +010094 * to return the device with sequence id 0 (which can be configured by the
95 * device tree). If this fails, fall back to just getting the first device.
96 * The latter is non-deterministic and depends on the order of the probing.
97 * If that device doesn't exist or fails to probe, this function will return
98 * NULL.
Simon Glassdb9391e2016-01-17 14:52:00 -070099 */
100struct udevice *eth_get_dev(void)
101{
102 struct eth_uclass_priv *uc_priv;
103
104 uc_priv = eth_get_uclass_priv();
Sean Andersonc3f02782020-09-12 17:45:43 -0400105 if (!uc_priv)
106 return NULL;
107
Michael Walle6e424b42021-02-24 17:30:44 +0100108 if (!uc_priv->current) {
109 eth_errno = uclass_get_device_by_seq(UCLASS_ETH, 0,
110 &uc_priv->current);
111 if (eth_errno)
Michal Suchanekc726fc02022-10-12 21:57:59 +0200112 eth_errno = uclass_first_device_err(UCLASS_ETH,
113 &uc_priv->current);
Michal Suchanek0736f7a2022-10-12 21:58:02 +0200114 if (eth_errno)
115 uc_priv->current = NULL;
Michael Walle6e424b42021-02-24 17:30:44 +0100116 }
Simon Glassdb9391e2016-01-17 14:52:00 -0700117 return uc_priv->current;
118}
119
120/*
121 * Typically this will just store a device pointer.
122 * In case it was not probed, we will attempt to do so.
123 * dev may be NULL to unset the active device.
124 */
125void eth_set_dev(struct udevice *dev)
126{
127 if (dev && !device_active(dev)) {
128 eth_errno = device_probe(dev);
129 if (eth_errno)
130 dev = NULL;
131 }
132
133 eth_get_uclass_priv()->current = dev;
134}
135
136/*
137 * Find the udevice that either has the name passed in as devname or has an
138 * alias named devname.
139 */
140struct udevice *eth_get_dev_by_name(const char *devname)
141{
142 int seq = -1;
143 char *endp = NULL;
144 const char *startp = NULL;
145 struct udevice *it;
146 struct uclass *uc;
147 int len = strlen("eth");
Peng Fand2b70202020-05-03 22:41:13 +0800148 int ret;
Simon Glassdb9391e2016-01-17 14:52:00 -0700149
150 /* Must be longer than 3 to be an alias */
151 if (!strncmp(devname, "eth", len) && strlen(devname) > len) {
152 startp = devname + len;
Simon Glass0b1284e2021-07-24 09:03:30 -0600153 seq = dectoul(startp, &endp);
Simon Glassdb9391e2016-01-17 14:52:00 -0700154 }
155
Peng Fand2b70202020-05-03 22:41:13 +0800156 ret = uclass_get(UCLASS_ETH, &uc);
157 if (ret)
158 return NULL;
159
Simon Glassdb9391e2016-01-17 14:52:00 -0700160 uclass_foreach_dev(it, uc) {
161 /*
Simon Glassdb9391e2016-01-17 14:52:00 -0700162 * We don't care about errors from probe here. Either they won't
163 * match an alias or it will match a literal name and we'll pick
164 * up the error when we try to probe again in eth_set_dev().
165 */
166 if (device_probe(it))
167 continue;
168 /* Check for the name or the sequence number to match */
169 if (strcmp(it->name, devname) == 0 ||
Simon Glass8b85dfc2020-12-16 21:20:07 -0700170 (endp > startp && dev_seq(it) == seq))
Simon Glassdb9391e2016-01-17 14:52:00 -0700171 return it;
172 }
173
174 return NULL;
175}
176
177unsigned char *eth_get_ethaddr(void)
178{
179 struct eth_pdata *pdata;
180
181 if (eth_get_dev()) {
Simon Glass0fd3d912020-12-22 19:30:28 -0700182 pdata = dev_get_plat(eth_get_dev());
Simon Glassdb9391e2016-01-17 14:52:00 -0700183 return pdata->enetaddr;
184 }
185
186 return NULL;
187}
188
189/* Set active state without calling start on the driver */
190int eth_init_state_only(void)
191{
192 struct udevice *current;
193 struct eth_device_priv *priv;
194
195 current = eth_get_dev();
196 if (!current || !device_active(current))
197 return -EINVAL;
198
Simon Glass0fd3d912020-12-22 19:30:28 -0700199 priv = dev_get_uclass_priv(current);
Simon Glassdb9391e2016-01-17 14:52:00 -0700200 priv->state = ETH_STATE_ACTIVE;
201
202 return 0;
203}
204
205/* Set passive state without calling stop on the driver */
206void eth_halt_state_only(void)
207{
208 struct udevice *current;
209 struct eth_device_priv *priv;
210
211 current = eth_get_dev();
212 if (!current || !device_active(current))
213 return;
214
Simon Glass0fd3d912020-12-22 19:30:28 -0700215 priv = dev_get_uclass_priv(current);
Simon Glassdb9391e2016-01-17 14:52:00 -0700216 priv->state = ETH_STATE_PASSIVE;
217}
218
219int eth_get_dev_index(void)
220{
221 if (eth_get_dev())
Simon Glass8b85dfc2020-12-16 21:20:07 -0700222 return dev_seq(eth_get_dev());
Simon Glassdb9391e2016-01-17 14:52:00 -0700223 return -1;
224}
225
226static int eth_write_hwaddr(struct udevice *dev)
227{
xypron.glpk@gmx.dec08248d2017-05-16 05:07:01 +0200228 struct eth_pdata *pdata;
Simon Glassdb9391e2016-01-17 14:52:00 -0700229 int ret = 0;
230
231 if (!dev || !device_active(dev))
232 return -EINVAL;
233
234 /* seq is valid since the device is active */
Simon Glass8b85dfc2020-12-16 21:20:07 -0700235 if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev_seq(dev))) {
Simon Glass0fd3d912020-12-22 19:30:28 -0700236 pdata = dev_get_plat(dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700237 if (!is_valid_ethaddr(pdata->enetaddr)) {
238 printf("\nError: %s address %pM illegal value\n",
239 dev->name, pdata->enetaddr);
240 return -EINVAL;
241 }
242
243 /*
244 * Drivers are allowed to decide not to implement this at
245 * run-time. E.g. Some devices may use it and some may not.
246 */
247 ret = eth_get_ops(dev)->write_hwaddr(dev);
248 if (ret == -ENOSYS)
249 ret = 0;
250 if (ret)
251 printf("\nWarning: %s failed to set MAC address\n",
252 dev->name);
253 }
254
255 return ret;
256}
257
258static int on_ethaddr(const char *name, const char *value, enum env_op op,
259 int flags)
260{
261 int index;
262 int retval;
263 struct udevice *dev;
264
265 /* look for an index after "eth" */
Simon Glass0b1284e2021-07-24 09:03:30 -0600266 index = dectoul(name + 3, NULL);
Simon Glassdb9391e2016-01-17 14:52:00 -0700267
Simon Glass99175912020-12-16 21:20:29 -0700268 retval = uclass_find_device_by_seq(UCLASS_ETH, index, &dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700269 if (!retval) {
Simon Glass0fd3d912020-12-22 19:30:28 -0700270 struct eth_pdata *pdata = dev_get_plat(dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700271 switch (op) {
272 case env_op_create:
273 case env_op_overwrite:
Joe Hershbergerfb8977c2019-09-13 19:21:16 -0500274 string_to_enetaddr(value, pdata->enetaddr);
Hannes Schmelzerc86ff7f2016-09-02 14:48:17 +0200275 eth_write_hwaddr(dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700276 break;
277 case env_op_delete:
oliver@schinagl.nla40db6d2016-11-25 16:30:19 +0100278 memset(pdata->enetaddr, 0, ARP_HLEN);
Simon Glassdb9391e2016-01-17 14:52:00 -0700279 }
280 }
281
282 return 0;
283}
284U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
285
286int eth_init(void)
287{
Simon Glass00caae62017-08-03 12:22:12 -0600288 char *ethact = env_get("ethact");
289 char *ethrotate = env_get("ethrotate");
Simon Glassdb9391e2016-01-17 14:52:00 -0700290 struct udevice *current = NULL;
291 struct udevice *old_current;
292 int ret = -ENODEV;
293
294 /*
295 * When 'ethrotate' variable is set to 'no' and 'ethact' variable
296 * is already set to an ethernet device, we should stick to 'ethact'.
297 */
298 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) {
299 if (ethact) {
300 current = eth_get_dev_by_name(ethact);
301 if (!current)
302 return -EINVAL;
303 }
304 }
305
306 if (!current) {
307 current = eth_get_dev();
308 if (!current) {
Heinrich Schuchardtad895912020-09-14 11:00:18 +0200309 log_err("No ethernet found.\n");
Simon Glassdb9391e2016-01-17 14:52:00 -0700310 return -ENODEV;
311 }
312 }
313
314 old_current = current;
315 do {
316 if (current) {
317 debug("Trying %s\n", current->name);
318
319 if (device_active(current)) {
320 ret = eth_get_ops(current)->start(current);
321 if (ret >= 0) {
322 struct eth_device_priv *priv =
Simon Glass0fd3d912020-12-22 19:30:28 -0700323 dev_get_uclass_priv(current);
Simon Glassdb9391e2016-01-17 14:52:00 -0700324
325 priv->state = ETH_STATE_ACTIVE;
Matthias Schifferfa795f42020-11-04 14:45:14 +0100326 priv->running = true;
Simon Glassdb9391e2016-01-17 14:52:00 -0700327 return 0;
328 }
329 } else {
330 ret = eth_errno;
331 }
332
333 debug("FAIL\n");
334 } else {
335 debug("PROBE FAIL\n");
336 }
337
338 /*
339 * If ethrotate is enabled, this will change "current",
340 * otherwise we will drop out of this while loop immediately
341 */
342 eth_try_another(0);
343 /* This will ensure the new "current" attempted to probe */
344 current = eth_get_dev();
345 } while (old_current != current);
346
347 return ret;
348}
349
350void eth_halt(void)
351{
352 struct udevice *current;
353 struct eth_device_priv *priv;
354
355 current = eth_get_dev();
Matthias Schifferfa795f42020-11-04 14:45:14 +0100356 if (!current)
357 return;
358
359 priv = dev_get_uclass_priv(current);
360 if (!priv || !priv->running)
Simon Glassdb9391e2016-01-17 14:52:00 -0700361 return;
362
363 eth_get_ops(current)->stop(current);
Matthias Schifferfa795f42020-11-04 14:45:14 +0100364 priv->state = ETH_STATE_PASSIVE;
365 priv->running = false;
Simon Glassdb9391e2016-01-17 14:52:00 -0700366}
367
368int eth_is_active(struct udevice *dev)
369{
370 struct eth_device_priv *priv;
371
372 if (!dev || !device_active(dev))
373 return 0;
374
375 priv = dev_get_uclass_priv(dev);
376 return priv->state == ETH_STATE_ACTIVE;
377}
378
379int eth_send(void *packet, int length)
380{
381 struct udevice *current;
382 int ret;
383
384 current = eth_get_dev();
385 if (!current)
386 return -ENODEV;
387
Alexander Grafa532e2f2018-03-15 15:07:09 +0100388 if (!eth_is_active(current))
Simon Glassdb9391e2016-01-17 14:52:00 -0700389 return -EINVAL;
390
391 ret = eth_get_ops(current)->send(current, packet, length);
392 if (ret < 0) {
393 /* We cannot completely return the error at present */
394 debug("%s: send() returned error %d\n", __func__, ret);
395 }
Ramon Fried3eaac632019-07-18 21:43:30 +0300396#if defined(CONFIG_CMD_PCAP)
397 if (ret >= 0)
398 pcap_post(packet, length, true);
399#endif
Simon Glassdb9391e2016-01-17 14:52:00 -0700400 return ret;
401}
402
403int eth_rx(void)
404{
405 struct udevice *current;
406 uchar *packet;
407 int flags;
408 int ret;
409 int i;
410
411 current = eth_get_dev();
412 if (!current)
413 return -ENODEV;
414
Alexander Grafa532e2f2018-03-15 15:07:09 +0100415 if (!eth_is_active(current))
Simon Glassdb9391e2016-01-17 14:52:00 -0700416 return -EINVAL;
417
418 /* Process up to 32 packets at one time */
419 flags = ETH_RECV_CHECK_DEVICE;
Patrick Wildt36ea0ca2020-10-07 11:03:30 +0200420 for (i = 0; i < ETH_PACKETS_BATCH_RECV; i++) {
Simon Glassdb9391e2016-01-17 14:52:00 -0700421 ret = eth_get_ops(current)->recv(current, flags, &packet);
422 flags = 0;
423 if (ret > 0)
424 net_process_received_packet(packet, ret);
425 if (ret >= 0 && eth_get_ops(current)->free_pkt)
426 eth_get_ops(current)->free_pkt(current, packet, ret);
427 if (ret <= 0)
428 break;
429 }
430 if (ret == -EAGAIN)
431 ret = 0;
432 if (ret < 0) {
433 /* We cannot completely return the error at present */
434 debug("%s: recv() returned error %d\n", __func__, ret);
435 }
436 return ret;
437}
438
439int eth_initialize(void)
440{
441 int num_devices = 0;
442 struct udevice *dev;
443
444 eth_common_init();
445
446 /*
447 * Devices need to write the hwaddr even if not started so that Linux
448 * will have access to the hwaddr that u-boot stored for the device.
449 * This is accomplished by attempting to probe each device and calling
450 * their write_hwaddr() operation.
451 */
Mario Six3ce43042018-04-27 14:52:56 +0200452 uclass_first_device_check(UCLASS_ETH, &dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700453 if (!dev) {
Heinrich Schuchardtad895912020-09-14 11:00:18 +0200454 log_err("No ethernet found.\n");
Simon Glassdb9391e2016-01-17 14:52:00 -0700455 bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
456 } else {
Simon Glass00caae62017-08-03 12:22:12 -0600457 char *ethprime = env_get("ethprime");
Simon Glassdb9391e2016-01-17 14:52:00 -0700458 struct udevice *prime_dev = NULL;
459
460 if (ethprime)
461 prime_dev = eth_get_dev_by_name(ethprime);
462 if (prime_dev) {
463 eth_set_dev(prime_dev);
464 eth_current_changed();
465 } else {
466 eth_set_dev(NULL);
467 }
468
469 bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
470 do {
Simon Glass552da332020-12-16 21:20:16 -0700471 if (device_active(dev)) {
Michael Walle19820db2019-10-22 01:03:10 +0200472 if (num_devices)
473 printf(", ");
Simon Glassdb9391e2016-01-17 14:52:00 -0700474
Simon Glass8b85dfc2020-12-16 21:20:07 -0700475 printf("eth%d: %s", dev_seq(dev), dev->name);
Simon Glassdb9391e2016-01-17 14:52:00 -0700476
Michael Walle19820db2019-10-22 01:03:10 +0200477 if (ethprime && dev == prime_dev)
478 printf(" [PRIME]");
479 }
Simon Glassdb9391e2016-01-17 14:52:00 -0700480
481 eth_write_hwaddr(dev);
482
Simon Glass552da332020-12-16 21:20:16 -0700483 if (device_active(dev))
Michael Walle19820db2019-10-22 01:03:10 +0200484 num_devices++;
Mario Six3ce43042018-04-27 14:52:56 +0200485 uclass_next_device_check(&dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700486 } while (dev);
487
Michael Walle19820db2019-10-22 01:03:10 +0200488 if (!num_devices)
Heinrich Schuchardtad895912020-09-14 11:00:18 +0200489 log_err("No ethernet found.\n");
Simon Glassdb9391e2016-01-17 14:52:00 -0700490 putc('\n');
491 }
492
493 return num_devices;
494}
495
496static int eth_post_bind(struct udevice *dev)
497{
Simon Glass70dd8862023-01-17 10:47:28 -0700498 struct eth_uclass_priv *priv = uclass_get_priv(dev->uclass);
Simon Glass4fd8d072022-04-24 23:31:15 -0600499 int ret;
500
Simon Glassdb9391e2016-01-17 14:52:00 -0700501 if (strchr(dev->name, ' ')) {
502 printf("\nError: eth device name \"%s\" has a space!\n",
503 dev->name);
504 return -EINVAL;
505 }
506
Ye Li5fe419e2020-05-03 22:41:14 +0800507#ifdef CONFIG_DM_ETH_PHY
508 eth_phy_binds_nodes(dev);
509#endif
Simon Glass70dd8862023-01-17 10:47:28 -0700510 if (CONFIG_IS_ENABLED(BOOTDEV_ETH) && !priv->no_bootdevs) {
Simon Glass4fd8d072022-04-24 23:31:15 -0600511 ret = bootdev_setup_for_dev(dev, "eth_bootdev");
512 if (ret)
513 return log_msg_ret("bootdev", ret);
514 }
Ye Li5fe419e2020-05-03 22:41:14 +0800515
Simon Glassdb9391e2016-01-17 14:52:00 -0700516 return 0;
517}
518
519static int eth_pre_unbind(struct udevice *dev)
520{
521 /* Don't hang onto a pointer that is going away */
522 if (dev == eth_get_uclass_priv()->current)
523 eth_set_dev(NULL);
524
525 return 0;
526}
527
Thierry Reding379af672019-05-20 17:59:57 +0200528static bool eth_dev_get_mac_address(struct udevice *dev, u8 mac[ARP_HLEN])
529{
Simon Glass177e7f92021-01-13 20:29:47 -0700530#if CONFIG_IS_ENABLED(OF_CONTROL)
Thierry Reding379af672019-05-20 17:59:57 +0200531 const uint8_t *p;
Sean Anderson97d0f9b2022-05-05 13:11:41 -0400532 struct nvmem_cell mac_cell;
Thierry Reding379af672019-05-20 17:59:57 +0200533
534 p = dev_read_u8_array_ptr(dev, "mac-address", ARP_HLEN);
535 if (!p)
536 p = dev_read_u8_array_ptr(dev, "local-mac-address", ARP_HLEN);
537
Sean Anderson97d0f9b2022-05-05 13:11:41 -0400538 if (p) {
539 memcpy(mac, p, ARP_HLEN);
540 return true;
541 }
542
543 if (nvmem_cell_get_by_name(dev, "mac-address", &mac_cell))
Thierry Reding379af672019-05-20 17:59:57 +0200544 return false;
545
Sean Anderson97d0f9b2022-05-05 13:11:41 -0400546 return !nvmem_cell_read(&mac_cell, mac, ARP_HLEN);
Thierry Reding379af672019-05-20 17:59:57 +0200547#else
548 return false;
549#endif
550}
551
Simon Glassdb9391e2016-01-17 14:52:00 -0700552static int eth_post_probe(struct udevice *dev)
553{
Simon Glass0fd3d912020-12-22 19:30:28 -0700554 struct eth_device_priv *priv = dev_get_uclass_priv(dev);
555 struct eth_pdata *pdata = dev_get_plat(dev);
oliver@schinagl.nla40db6d2016-11-25 16:30:19 +0100556 unsigned char env_enetaddr[ARP_HLEN];
Michal Simekd4172c92020-03-16 11:36:17 +0100557 char *source = "DT";
Simon Glassdb9391e2016-01-17 14:52:00 -0700558
559#if defined(CONFIG_NEEDS_MANUAL_RELOC)
560 struct eth_ops *ops = eth_get_ops(dev);
561 static int reloc_done;
562
563 if (!reloc_done) {
564 if (ops->start)
565 ops->start += gd->reloc_off;
566 if (ops->send)
567 ops->send += gd->reloc_off;
568 if (ops->recv)
569 ops->recv += gd->reloc_off;
570 if (ops->free_pkt)
571 ops->free_pkt += gd->reloc_off;
572 if (ops->stop)
573 ops->stop += gd->reloc_off;
Simon Glassdb9391e2016-01-17 14:52:00 -0700574 if (ops->mcast)
575 ops->mcast += gd->reloc_off;
Simon Glassdb9391e2016-01-17 14:52:00 -0700576 if (ops->write_hwaddr)
577 ops->write_hwaddr += gd->reloc_off;
578 if (ops->read_rom_hwaddr)
579 ops->read_rom_hwaddr += gd->reloc_off;
580
581 reloc_done++;
582 }
583#endif
584
585 priv->state = ETH_STATE_INIT;
Matthias Schifferfa795f42020-11-04 14:45:14 +0100586 priv->running = false;
Simon Glassdb9391e2016-01-17 14:52:00 -0700587
Thierry Reding379af672019-05-20 17:59:57 +0200588 /* Check if the device has a valid MAC address in device tree */
589 if (!eth_dev_get_mac_address(dev, pdata->enetaddr) ||
590 !is_valid_ethaddr(pdata->enetaddr)) {
Michal Simekd4172c92020-03-16 11:36:17 +0100591 source = "ROM";
Thierry Reding379af672019-05-20 17:59:57 +0200592 /* Check if the device has a MAC address in ROM */
593 if (eth_get_ops(dev)->read_rom_hwaddr)
594 eth_get_ops(dev)->read_rom_hwaddr(dev);
595 }
Simon Glassdb9391e2016-01-17 14:52:00 -0700596
Simon Glass8b85dfc2020-12-16 21:20:07 -0700597 eth_env_get_enetaddr_by_index("eth", dev_seq(dev), env_enetaddr);
Simon Glassdb9391e2016-01-17 14:52:00 -0700598 if (!is_zero_ethaddr(env_enetaddr)) {
599 if (!is_zero_ethaddr(pdata->enetaddr) &&
oliver@schinagl.nla40db6d2016-11-25 16:30:19 +0100600 memcmp(pdata->enetaddr, env_enetaddr, ARP_HLEN)) {
Simon Glassdb9391e2016-01-17 14:52:00 -0700601 printf("\nWarning: %s MAC addresses don't match:\n",
602 dev->name);
Michal Simekd4172c92020-03-16 11:36:17 +0100603 printf("Address in %s is\t\t%pM\n",
604 source, pdata->enetaddr);
605 printf("Address in environment is\t%pM\n",
Simon Glassdb9391e2016-01-17 14:52:00 -0700606 env_enetaddr);
607 }
608
609 /* Override the ROM MAC address */
oliver@schinagl.nla40db6d2016-11-25 16:30:19 +0100610 memcpy(pdata->enetaddr, env_enetaddr, ARP_HLEN);
Simon Glassdb9391e2016-01-17 14:52:00 -0700611 } else if (is_valid_ethaddr(pdata->enetaddr)) {
Simon Glass8b85dfc2020-12-16 21:20:07 -0700612 eth_env_set_enetaddr_by_index("eth", dev_seq(dev),
613 pdata->enetaddr);
Siva Durga Prasad Paladuguaa555fe2016-11-02 12:52:13 +0100614 } else if (is_zero_ethaddr(pdata->enetaddr) ||
615 !is_valid_ethaddr(pdata->enetaddr)) {
Simon Glassdb9391e2016-01-17 14:52:00 -0700616#ifdef CONFIG_NET_RANDOM_ETHADDR
617 net_random_ethaddr(pdata->enetaddr);
618 printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
Simon Glass8b85dfc2020-12-16 21:20:07 -0700619 dev->name, dev_seq(dev), pdata->enetaddr);
Michal Simek381e6e52022-01-11 10:28:09 +0100620 eth_env_set_enetaddr_by_index("eth", dev_seq(dev),
621 pdata->enetaddr);
Simon Glassdb9391e2016-01-17 14:52:00 -0700622#else
623 printf("\nError: %s address not set.\n",
624 dev->name);
625 return -EINVAL;
626#endif
627 }
628
Thierry Redingb743bbd2019-05-20 17:59:56 +0200629 eth_write_hwaddr(dev);
630
Simon Glassdb9391e2016-01-17 14:52:00 -0700631 return 0;
632}
633
634static int eth_pre_remove(struct udevice *dev)
635{
Simon Glass0fd3d912020-12-22 19:30:28 -0700636 struct eth_pdata *pdata = dev_get_plat(dev);
Simon Glassdb9391e2016-01-17 14:52:00 -0700637
638 eth_get_ops(dev)->stop(dev);
639
640 /* clear the MAC address */
oliver@schinagl.nla40db6d2016-11-25 16:30:19 +0100641 memset(pdata->enetaddr, 0, ARP_HLEN);
Simon Glassdb9391e2016-01-17 14:52:00 -0700642
643 return 0;
644}
645
Michael Walle82a3c9e2021-02-25 16:51:11 +0100646UCLASS_DRIVER(ethernet) = {
647 .name = "ethernet",
Simon Glassdb9391e2016-01-17 14:52:00 -0700648 .id = UCLASS_ETH,
649 .post_bind = eth_post_bind,
650 .pre_unbind = eth_pre_unbind,
651 .post_probe = eth_post_probe,
652 .pre_remove = eth_pre_remove,
Simon Glass41575d82020-12-03 16:55:17 -0700653 .priv_auto = sizeof(struct eth_uclass_priv),
654 .per_device_auto = sizeof(struct eth_device_priv),
Simon Glassdb9391e2016-01-17 14:52:00 -0700655 .flags = DM_UC_FLAG_SEQ_ALIAS,
656};