1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Library to support early TI EVM EEPROM handling
4 *
5 * Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
6 * Lokesh Vutla
7 * Steve Kipisz
8 */
9
10 #include <common.h>
11 #include <eeprom.h>
12 #include <asm/arch/hardware.h>
13 #include <asm/omap_common.h>
14 #include <dm/uclass.h>
15 #include <env.h>
16 #include <i2c.h>
17
18 #include "board_detect.h"
19
20 #if !defined(CONFIG_DM_I2C)
21 /**
22 * ti_i2c_eeprom_init - Initialize an i2c bus and probe for a device
23 * @i2c_bus: i2c bus number to initialize
24 * @dev_addr: Device address to probe for
25 *
26 * Return: 0 on success or corresponding error on failure.
27 */
ti_i2c_eeprom_init(int i2c_bus,int dev_addr)28 static int __maybe_unused ti_i2c_eeprom_init(int i2c_bus, int dev_addr)
29 {
30 int rc;
31
32 if (i2c_bus >= 0) {
33 rc = i2c_set_bus_num(i2c_bus);
34 if (rc)
35 return rc;
36 }
37
38 return i2c_probe(dev_addr);
39 }
40
41 /**
42 * ti_i2c_eeprom_read - Read data from an EEPROM
43 * @dev_addr: The device address of the EEPROM
44 * @offset: Offset to start reading in the EEPROM
45 * @ep: Pointer to a buffer to read into
46 * @epsize: Size of buffer
47 *
48 * Return: 0 on success or corresponding result of i2c_read
49 */
ti_i2c_eeprom_read(int dev_addr,int offset,uchar * ep,int epsize)50 static int __maybe_unused ti_i2c_eeprom_read(int dev_addr, int offset,
51 uchar *ep, int epsize)
52 {
53 return i2c_read(dev_addr, offset, 2, ep, epsize);
54 }
55 #endif
56
57 /**
58 * ti_eeprom_string_cleanup() - Handle eeprom programming errors
59 * @s: eeprom string (should be NULL terminated)
60 *
61 * Some Board manufacturers do not add a NULL termination at the
62 * end of string, instead some binary information is kludged in, hence
63 * convert the string to just printable characters of ASCII chart.
64 */
ti_eeprom_string_cleanup(char * s)65 static void __maybe_unused ti_eeprom_string_cleanup(char *s)
66 {
67 int i, l;
68
69 l = strlen(s);
70 for (i = 0; i < l; i++, s++)
71 if (*s < ' ' || *s > '~') {
72 *s = 0;
73 break;
74 }
75 }
76
gpi2c_init(void)77 __weak void gpi2c_init(void)
78 {
79 }
80
ti_i2c_eeprom_get(int bus_addr,int dev_addr,u32 header,u32 size,uint8_t * ep)81 static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
82 u32 header, u32 size, uint8_t *ep)
83 {
84 u32 hdr_read;
85 int rc;
86
87 #if defined(CONFIG_DM_I2C)
88 struct udevice *dev;
89 struct udevice *bus;
90
91 rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
92 if (rc)
93 return rc;
94 rc = i2c_get_chip(bus, dev_addr, 1, &dev);
95 if (rc)
96 return rc;
97
98 /*
99 * Read the header first then only read the other contents.
100 */
101 rc = i2c_set_chip_offset_len(dev, 2);
102 if (rc)
103 return rc;
104
105 rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
106 if (rc)
107 return rc;
108
109 /* Corrupted data??? */
110 if (hdr_read != header) {
111 rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
112 /*
113 * read the eeprom header using i2c again, but use only a
114 * 1 byte address (some legacy boards need this..)
115 */
116 if (rc) {
117 rc = i2c_set_chip_offset_len(dev, 1);
118 if (rc)
119 return rc;
120
121 rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
122 }
123 if (rc)
124 return rc;
125 }
126 if (hdr_read != header)
127 return -1;
128
129 rc = dm_i2c_read(dev, 0, ep, size);
130 if (rc)
131 return rc;
132 #else
133 u32 byte;
134
135 gpi2c_init();
136 rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
137 if (rc)
138 return rc;
139
140 /*
141 * Read the header first then only read the other contents.
142 */
143 byte = 2;
144
145 rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
146 if (rc)
147 return rc;
148
149 /* Corrupted data??? */
150 if (hdr_read != header) {
151 rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
152 /*
153 * read the eeprom header using i2c again, but use only a
154 * 1 byte address (some legacy boards need this..)
155 */
156 byte = 1;
157 if (rc) {
158 rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read,
159 4);
160 }
161 if (rc)
162 return rc;
163 }
164 if (hdr_read != header)
165 return -1;
166
167 rc = i2c_read(dev_addr, 0x0, byte, ep, size);
168 if (rc)
169 return rc;
170 #endif
171 return 0;
172 }
173
ti_i2c_eeprom_am_set(const char * name,const char * rev)174 int __maybe_unused ti_i2c_eeprom_am_set(const char *name, const char *rev)
175 {
176 struct ti_common_eeprom *ep;
177
178 if (!name || !rev)
179 return -1;
180
181 ep = TI_EEPROM_DATA;
182 if (ep->header == TI_EEPROM_HEADER_MAGIC)
183 goto already_set;
184
185 /* Set to 0 all fields */
186 memset(ep, 0, sizeof(*ep));
187 strncpy(ep->name, name, TI_EEPROM_HDR_NAME_LEN);
188 strncpy(ep->version, rev, TI_EEPROM_HDR_REV_LEN);
189 /* Some dummy serial number to identify the platform */
190 strncpy(ep->serial, "0000", TI_EEPROM_HDR_SERIAL_LEN);
191 /* Mark it with a valid header */
192 ep->header = TI_EEPROM_HEADER_MAGIC;
193
194 already_set:
195 return 0;
196 }
197
ti_i2c_eeprom_am_get(int bus_addr,int dev_addr)198 int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr)
199 {
200 int rc;
201 struct ti_am_eeprom am_ep;
202 struct ti_common_eeprom *ep;
203
204 ep = TI_EEPROM_DATA;
205 #ifndef CONFIG_SPL_BUILD
206 if (ep->header == TI_EEPROM_HEADER_MAGIC)
207 return 0; /* EEPROM has already been read */
208 #endif
209
210 /* Initialize with a known bad marker for i2c fails.. */
211 ep->header = TI_DEAD_EEPROM_MAGIC;
212 ep->name[0] = 0x0;
213 ep->version[0] = 0x0;
214 ep->serial[0] = 0x0;
215 ep->config[0] = 0x0;
216
217 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
218 sizeof(am_ep), (uint8_t *)&am_ep);
219 if (rc)
220 return rc;
221
222 ep->header = am_ep.header;
223 strlcpy(ep->name, am_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
224 ti_eeprom_string_cleanup(ep->name);
225
226 /* BeagleBone Green '1' eeprom, board_rev: 0x1a 0x00 0x00 0x00 */
227 if (am_ep.version[0] == 0x1a && am_ep.version[1] == 0x00 &&
228 am_ep.version[2] == 0x00 && am_ep.version[3] == 0x00)
229 strlcpy(ep->version, "BBG1", TI_EEPROM_HDR_REV_LEN + 1);
230 else
231 strlcpy(ep->version, am_ep.version, TI_EEPROM_HDR_REV_LEN + 1);
232 ti_eeprom_string_cleanup(ep->version);
233 strlcpy(ep->serial, am_ep.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
234 ti_eeprom_string_cleanup(ep->serial);
235 strlcpy(ep->config, am_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
236 ti_eeprom_string_cleanup(ep->config);
237
238 memcpy(ep->mac_addr, am_ep.mac_addr,
239 TI_EEPROM_HDR_NO_OF_MAC_ADDR * TI_EEPROM_HDR_ETH_ALEN);
240
241 return 0;
242 }
243
ti_i2c_eeprom_dra7_get(int bus_addr,int dev_addr)244 int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr)
245 {
246 int rc, offset = 0;
247 struct dra7_eeprom dra7_ep;
248 struct ti_common_eeprom *ep;
249
250 ep = TI_EEPROM_DATA;
251 #ifndef CONFIG_SPL_BUILD
252 if (ep->header == DRA7_EEPROM_HEADER_MAGIC)
253 return 0; /* EEPROM has already been read */
254 #endif
255
256 /* Initialize with a known bad marker for i2c fails.. */
257 ep->header = TI_DEAD_EEPROM_MAGIC;
258 ep->name[0] = 0x0;
259 ep->version[0] = 0x0;
260 ep->serial[0] = 0x0;
261 ep->config[0] = 0x0;
262 ep->emif1_size = 0;
263 ep->emif2_size = 0;
264
265 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, DRA7_EEPROM_HEADER_MAGIC,
266 sizeof(dra7_ep), (uint8_t *)&dra7_ep);
267 if (rc)
268 return rc;
269
270 ep->header = dra7_ep.header;
271 strlcpy(ep->name, dra7_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
272 ti_eeprom_string_cleanup(ep->name);
273
274 offset = dra7_ep.version_major - 1;
275
276 /* Rev F is skipped */
277 if (offset >= 5)
278 offset = offset + 1;
279 snprintf(ep->version, TI_EEPROM_HDR_REV_LEN + 1, "%c.%d",
280 'A' + offset, dra7_ep.version_minor);
281 ti_eeprom_string_cleanup(ep->version);
282 ep->emif1_size = (u64)dra7_ep.emif1_size;
283 ep->emif2_size = (u64)dra7_ep.emif2_size;
284 strlcpy(ep->config, dra7_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
285 ti_eeprom_string_cleanup(ep->config);
286
287 return 0;
288 }
289
ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record * record,struct ti_am6_eeprom * ep,char ** mac_addr,u8 mac_addr_max_cnt,u8 * mac_addr_cnt)290 static int ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record *record,
291 struct ti_am6_eeprom *ep,
292 char **mac_addr,
293 u8 mac_addr_max_cnt,
294 u8 *mac_addr_cnt)
295 {
296 switch (record->header.id) {
297 case TI_AM6_EEPROM_RECORD_BOARD_INFO:
298 if (record->header.len != sizeof(record->data.board_info))
299 return -EINVAL;
300
301 if (!ep)
302 break;
303
304 /* Populate (and clean, if needed) the board name */
305 strlcpy(ep->name, record->data.board_info.name,
306 sizeof(ep->name));
307 ti_eeprom_string_cleanup(ep->name);
308
309 /* Populate selected other fields from the board info record */
310 strlcpy(ep->version, record->data.board_info.version,
311 sizeof(ep->version));
312 strlcpy(ep->software_revision,
313 record->data.board_info.software_revision,
314 sizeof(ep->software_revision));
315 strlcpy(ep->serial, record->data.board_info.serial,
316 sizeof(ep->serial));
317 break;
318 case TI_AM6_EEPROM_RECORD_MAC_INFO:
319 if (record->header.len != sizeof(record->data.mac_info))
320 return -EINVAL;
321
322 if (!mac_addr || !mac_addr_max_cnt)
323 break;
324
325 *mac_addr_cnt = ((record->data.mac_info.mac_control &
326 TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK) >>
327 TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT) + 1;
328
329 /*
330 * The EEPROM can (but may not) hold a very large amount
331 * of MAC addresses, by far exceeding what we want/can store
332 * in the common memory array, so only grab what we can fit.
333 * Note that a value of 0 means 1 MAC address, and so on.
334 */
335 *mac_addr_cnt = min(*mac_addr_cnt, mac_addr_max_cnt);
336
337 memcpy(mac_addr, record->data.mac_info.mac_addr,
338 *mac_addr_cnt * TI_EEPROM_HDR_ETH_ALEN);
339 break;
340 case 0x00:
341 /* Illegal value... Fall through... */
342 case 0xFF:
343 /* Illegal value... Something went horribly wrong... */
344 return -EINVAL;
345 default:
346 pr_warn("%s: Ignoring record id %u\n", __func__,
347 record->header.id);
348 }
349
350 return 0;
351 }
352
ti_i2c_eeprom_am6_get(int bus_addr,int dev_addr,struct ti_am6_eeprom * ep,char ** mac_addr,u8 mac_addr_max_cnt,u8 * mac_addr_cnt)353 int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
354 struct ti_am6_eeprom *ep,
355 char **mac_addr,
356 u8 mac_addr_max_cnt,
357 u8 *mac_addr_cnt)
358 {
359 struct udevice *dev;
360 struct udevice *bus;
361 unsigned int eeprom_addr;
362 struct ti_am6_eeprom_record_board_id board_id;
363 struct ti_am6_eeprom_record record;
364 int rc;
365
366 /* Initialize with a known bad marker for i2c fails.. */
367 memset(ep, 0, sizeof(*ep));
368 ep->header = TI_DEAD_EEPROM_MAGIC;
369
370 /* Read the board ID record which is always the first EEPROM record */
371 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
372 sizeof(board_id), (uint8_t *)&board_id);
373 if (rc)
374 return rc;
375
376 if (board_id.header.id != TI_AM6_EEPROM_RECORD_BOARD_ID) {
377 pr_err("%s: Invalid board ID record!\n", __func__);
378 return -EINVAL;
379 }
380
381 /* Establish DM handle to board config EEPROM */
382 rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
383 if (rc)
384 return rc;
385 rc = i2c_get_chip(bus, dev_addr, 1, &dev);
386 if (rc)
387 return rc;
388
389 ep->header = TI_EEPROM_HEADER_MAGIC;
390
391 /* Ready to parse TLV structure. Initialize variables... */
392 *mac_addr_cnt = 0;
393
394 /*
395 * After the all-encompassing board ID record all other records follow
396 * a TLV-type scheme. Point to the first such record and then start
397 * parsing those one by one.
398 */
399 eeprom_addr = sizeof(board_id);
400
401 while (true) {
402 rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header,
403 sizeof(record.header));
404 if (rc)
405 return rc;
406
407 /*
408 * Check for end of list marker. If we reached it don't go
409 * any further and stop parsing right here.
410 */
411 if (record.header.id == TI_AM6_EEPROM_RECORD_END_LIST)
412 break;
413
414 eeprom_addr += sizeof(record.header);
415
416 debug("%s: dev_addr=0x%02x header.id=%u header.len=%u\n",
417 __func__, dev_addr, record.header.id,
418 record.header.len);
419
420 /* Read record into memory if it fits */
421 if (record.header.len <= sizeof(record.data)) {
422 rc = dm_i2c_read(dev, eeprom_addr,
423 (uint8_t *)&record.data,
424 record.header.len);
425 if (rc)
426 return rc;
427
428 /* Process record */
429 rc = ti_i2c_eeprom_am6_parse_record(&record, ep,
430 mac_addr,
431 mac_addr_max_cnt,
432 mac_addr_cnt);
433 if (rc) {
434 pr_err("%s: EEPROM parsing error!\n", __func__);
435 return rc;
436 }
437 } else {
438 /*
439 * We may get here in case of larger records which
440 * are not yet understood.
441 */
442 pr_err("%s: Ignoring record id %u\n", __func__,
443 record.header.id);
444 }
445
446 eeprom_addr += record.header.len;
447 }
448
449 return 0;
450 }
451
ti_i2c_eeprom_am6_get_base(int bus_addr,int dev_addr)452 int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr)
453 {
454 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
455 int ret;
456
457 /*
458 * Always execute EEPROM read by not allowing to bypass it during the
459 * first invocation of SPL which happens on the R5 core.
460 */
461 #if !(defined(CONFIG_SPL_BUILD) && defined(CONFIG_CPU_V7R))
462 if (ep->header == TI_EEPROM_HEADER_MAGIC) {
463 debug("%s: EEPROM has already been read\n", __func__);
464 return 0;
465 }
466 #endif
467
468 ret = ti_i2c_eeprom_am6_get(bus_addr, dev_addr, ep,
469 (char **)ep->mac_addr,
470 AM6_EEPROM_HDR_NO_OF_MAC_ADDR,
471 &ep->mac_addr_cnt);
472 return ret;
473 }
474
board_ti_is(char * name_tag)475 bool __maybe_unused board_ti_is(char *name_tag)
476 {
477 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
478
479 if (ep->header == TI_DEAD_EEPROM_MAGIC)
480 return false;
481 return !strncmp(ep->name, name_tag, TI_EEPROM_HDR_NAME_LEN);
482 }
483
board_ti_rev_is(char * rev_tag,int cmp_len)484 bool __maybe_unused board_ti_rev_is(char *rev_tag, int cmp_len)
485 {
486 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
487 int l;
488
489 if (ep->header == TI_DEAD_EEPROM_MAGIC)
490 return false;
491
492 l = cmp_len > TI_EEPROM_HDR_REV_LEN ? TI_EEPROM_HDR_REV_LEN : cmp_len;
493 return !strncmp(ep->version, rev_tag, l);
494 }
495
board_ti_get_rev(void)496 char * __maybe_unused board_ti_get_rev(void)
497 {
498 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
499
500 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
501 return ep->version;
502 }
503
board_ti_get_config(void)504 char * __maybe_unused board_ti_get_config(void)
505 {
506 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
507
508 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
509 return ep->config;
510 }
511
board_ti_get_name(void)512 char * __maybe_unused board_ti_get_name(void)
513 {
514 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
515
516 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
517 return ep->name;
518 }
519
520 void __maybe_unused
board_ti_get_eth_mac_addr(int index,u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])521 board_ti_get_eth_mac_addr(int index,
522 u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
523 {
524 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
525
526 if (ep->header == TI_DEAD_EEPROM_MAGIC)
527 goto fail;
528
529 if (index < 0 || index >= TI_EEPROM_HDR_NO_OF_MAC_ADDR)
530 goto fail;
531
532 memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
533 return;
534
535 fail:
536 memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
537 }
538
539 void __maybe_unused
board_ti_am6_get_eth_mac_addr(int index,u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])540 board_ti_am6_get_eth_mac_addr(int index,
541 u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
542 {
543 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
544
545 if (ep->header == TI_DEAD_EEPROM_MAGIC)
546 goto fail;
547
548 if (index < 0 || index >= ep->mac_addr_cnt)
549 goto fail;
550
551 memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
552 return;
553
554 fail:
555 memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
556 }
557
board_ti_get_emif1_size(void)558 u64 __maybe_unused board_ti_get_emif1_size(void)
559 {
560 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
561
562 if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
563 return 0;
564
565 return ep->emif1_size;
566 }
567
board_ti_get_emif2_size(void)568 u64 __maybe_unused board_ti_get_emif2_size(void)
569 {
570 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
571
572 if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
573 return 0;
574
575 return ep->emif2_size;
576 }
577
set_board_info_env(char * name)578 void __maybe_unused set_board_info_env(char *name)
579 {
580 char *unknown = "unknown";
581 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
582
583 if (name)
584 env_set("board_name", name);
585 else if (ep->name)
586 env_set("board_name", ep->name);
587 else
588 env_set("board_name", unknown);
589
590 if (ep->version)
591 env_set("board_rev", ep->version);
592 else
593 env_set("board_rev", unknown);
594
595 if (ep->serial)
596 env_set("board_serial", ep->serial);
597 else
598 env_set("board_serial", unknown);
599 }
600
set_board_info_env_am6(char * name)601 void __maybe_unused set_board_info_env_am6(char *name)
602 {
603 char *unknown = "unknown";
604 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
605
606 if (name)
607 env_set("board_name", name);
608 else if (ep->name)
609 env_set("board_name", ep->name);
610 else
611 env_set("board_name", unknown);
612
613 if (ep->version)
614 env_set("board_rev", ep->version);
615 else
616 env_set("board_rev", unknown);
617
618 if (ep->software_revision)
619 env_set("board_software_revision", ep->software_revision);
620 else
621 env_set("board_software_revision", unknown);
622
623 if (ep->serial)
624 env_set("board_serial", ep->serial);
625 else
626 env_set("board_serial", unknown);
627 }
628
mac_to_u64(u8 mac[6])629 static u64 mac_to_u64(u8 mac[6])
630 {
631 int i;
632 u64 addr = 0;
633
634 for (i = 0; i < 6; i++) {
635 addr <<= 8;
636 addr |= mac[i];
637 }
638
639 return addr;
640 }
641
u64_to_mac(u64 addr,u8 mac[6])642 static void u64_to_mac(u64 addr, u8 mac[6])
643 {
644 mac[5] = addr;
645 mac[4] = addr >> 8;
646 mac[3] = addr >> 16;
647 mac[2] = addr >> 24;
648 mac[1] = addr >> 32;
649 mac[0] = addr >> 40;
650 }
651
board_ti_set_ethaddr(int index)652 void board_ti_set_ethaddr(int index)
653 {
654 uint8_t mac_addr[6];
655 int i;
656 u64 mac1, mac2;
657 u8 mac_addr1[6], mac_addr2[6];
658 int num_macs;
659 /*
660 * Export any Ethernet MAC addresses from EEPROM.
661 * The 2 MAC addresses in EEPROM define the address range.
662 */
663 board_ti_get_eth_mac_addr(0, mac_addr1);
664 board_ti_get_eth_mac_addr(1, mac_addr2);
665
666 if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
667 mac1 = mac_to_u64(mac_addr1);
668 mac2 = mac_to_u64(mac_addr2);
669
670 /* must contain an address range */
671 num_macs = mac2 - mac1 + 1;
672 if (num_macs <= 0)
673 return;
674
675 if (num_macs > 50) {
676 printf("%s: Too many MAC addresses: %d. Limiting to 50\n",
677 __func__, num_macs);
678 num_macs = 50;
679 }
680
681 for (i = 0; i < num_macs; i++) {
682 u64_to_mac(mac1 + i, mac_addr);
683 if (is_valid_ethaddr(mac_addr)) {
684 eth_env_set_enetaddr_by_index("eth", i + index,
685 mac_addr);
686 }
687 }
688 }
689 }
690
board_ti_am6_set_ethaddr(int index,int count)691 void board_ti_am6_set_ethaddr(int index, int count)
692 {
693 u8 mac_addr[6];
694 int i;
695
696 for (i = 0; i < count; i++) {
697 board_ti_am6_get_eth_mac_addr(i, mac_addr);
698 if (is_valid_ethaddr(mac_addr))
699 eth_env_set_enetaddr_by_index("eth", i + index,
700 mac_addr);
701 }
702 }
703
board_ti_was_eeprom_read(void)704 bool __maybe_unused board_ti_was_eeprom_read(void)
705 {
706 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
707
708 if (ep->header == TI_EEPROM_HEADER_MAGIC)
709 return true;
710 else
711 return false;
712 }
713