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 <log.h>
13 #include <net.h>
14 #include <asm/arch/hardware.h>
15 #include <asm/omap_common.h>
16 #include <dm/uclass.h>
17 #include <env.h>
18 #include <i2c.h>
19 #include <mmc.h>
20 #include <errno.h>
21 #include <malloc.h>
22
23 #include "board_detect.h"
24
25 #if !CONFIG_IS_ENABLED(DM_I2C)
26 /**
27 * ti_i2c_eeprom_init - Initialize an i2c bus and probe for a device
28 * @i2c_bus: i2c bus number to initialize
29 * @dev_addr: Device address to probe for
30 *
31 * Return: 0 on success or corresponding error on failure.
32 */
ti_i2c_eeprom_init(int i2c_bus,int dev_addr)33 static int __maybe_unused ti_i2c_eeprom_init(int i2c_bus, int dev_addr)
34 {
35 int rc;
36
37 if (i2c_bus >= 0) {
38 rc = i2c_set_bus_num(i2c_bus);
39 if (rc)
40 return rc;
41 }
42
43 return i2c_probe(dev_addr);
44 }
45
46 /**
47 * ti_i2c_eeprom_read - Read data from an EEPROM
48 * @dev_addr: The device address of the EEPROM
49 * @offset: Offset to start reading in the EEPROM
50 * @ep: Pointer to a buffer to read into
51 * @epsize: Size of buffer
52 *
53 * Return: 0 on success or corresponding result of i2c_read
54 */
ti_i2c_eeprom_read(int dev_addr,int offset,uchar * ep,int epsize)55 static int __maybe_unused ti_i2c_eeprom_read(int dev_addr, int offset,
56 uchar *ep, int epsize)
57 {
58 return i2c_read(dev_addr, offset, 2, ep, epsize);
59 }
60 #endif
61
62 /**
63 * ti_eeprom_string_cleanup() - Handle eeprom programming errors
64 * @s: eeprom string (should be NULL terminated)
65 *
66 * Some Board manufacturers do not add a NULL termination at the
67 * end of string, instead some binary information is kludged in, hence
68 * convert the string to just printable characters of ASCII chart.
69 */
ti_eeprom_string_cleanup(char * s)70 static void __maybe_unused ti_eeprom_string_cleanup(char *s)
71 {
72 int i, l;
73
74 l = strlen(s);
75 for (i = 0; i < l; i++, s++)
76 if (*s < ' ' || *s > '~') {
77 *s = 0;
78 break;
79 }
80 }
81
gpi2c_init(void)82 __weak void gpi2c_init(void)
83 {
84 }
85
ti_i2c_eeprom_get(int bus_addr,int dev_addr,u32 header,u32 size,uint8_t * ep)86 static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
87 u32 header, u32 size, uint8_t *ep)
88 {
89 u32 hdr_read;
90 int rc;
91
92 #if CONFIG_IS_ENABLED(DM_I2C)
93 struct udevice *dev;
94 struct udevice *bus;
95
96 rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
97 if (rc)
98 return rc;
99 rc = dm_i2c_probe(bus, dev_addr, 0, &dev);
100 if (rc)
101 return rc;
102
103 /*
104 * Read the header first then only read the other contents.
105 */
106 rc = i2c_set_chip_offset_len(dev, 2);
107 if (rc)
108 return rc;
109
110 rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
111 if (rc)
112 return rc;
113
114 /* Corrupted data??? */
115 if (hdr_read != header) {
116 /*
117 * read the eeprom header using i2c again, but use only a
118 * 1 byte address (some legacy boards need this..)
119 */
120 rc = i2c_set_chip_offset_len(dev, 1);
121 if (rc)
122 return rc;
123
124 rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
125 if (rc)
126 return rc;
127 }
128 if (hdr_read != header)
129 return -1;
130
131 rc = dm_i2c_read(dev, 0, ep, size);
132 if (rc)
133 return rc;
134 #else
135 u32 byte;
136
137 gpi2c_init();
138 rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
139 if (rc)
140 return rc;
141
142 /*
143 * Read the header first then only read the other contents.
144 */
145 byte = 2;
146
147 rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
148 if (rc)
149 return rc;
150
151 /* Corrupted data??? */
152 if (hdr_read != header) {
153 /*
154 * read the eeprom header using i2c again, but use only a
155 * 1 byte address (some legacy boards need this..)
156 */
157 byte = 1;
158 rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read,
159 4);
160 if (rc)
161 return rc;
162 }
163 if (hdr_read != header)
164 return -1;
165
166 rc = i2c_read(dev_addr, 0x0, byte, ep, size);
167 if (rc)
168 return rc;
169 #endif
170 return 0;
171 }
172
ti_emmc_boardid_get(void)173 int __maybe_unused ti_emmc_boardid_get(void)
174 {
175 int rc;
176 struct udevice *dev;
177 struct mmc *mmc;
178 struct ti_common_eeprom *ep;
179 struct ti_am_eeprom brdid;
180 struct blk_desc *bdesc;
181 uchar *buffer;
182
183 ep = TI_EEPROM_DATA;
184 if (ep->header == TI_EEPROM_HEADER_MAGIC)
185 return 0; /* EEPROM has already been read */
186
187 /* Initialize with a known bad marker for emmc fails.. */
188 ep->header = TI_DEAD_EEPROM_MAGIC;
189 ep->name[0] = 0x0;
190 ep->version[0] = 0x0;
191 ep->serial[0] = 0x0;
192 ep->config[0] = 0x0;
193
194 /* uclass object initialization */
195 rc = mmc_initialize(NULL);
196 if (rc)
197 return rc;
198
199 /* Set device to /dev/mmcblk1 */
200 rc = uclass_get_device(UCLASS_MMC, 1, &dev);
201 if (rc)
202 return rc;
203
204 /* Grab the mmc device */
205 mmc = mmc_get_mmc_dev(dev);
206 if (!mmc)
207 return -ENODEV;
208
209 /* mmc hardware initialization routine */
210 mmc_init(mmc);
211
212 /* Set partition to /dev/mmcblk1boot1 */
213 rc = mmc_switch_part(mmc, 2);
214 if (rc)
215 return rc;
216
217 buffer = malloc(mmc->read_bl_len);
218 if (!buffer)
219 return -ENOMEM;
220
221 bdesc = mmc_get_blk_desc(mmc);
222
223 /* blk_dread returns the number of blocks read*/
224 if (blk_dread(bdesc, 0L, 1, buffer) != 1) {
225 rc = -EIO;
226 goto cleanup;
227 }
228
229 memcpy(&brdid, buffer, sizeof(brdid));
230
231 /* Write out the ep struct values */
232 ep->header = brdid.header;
233 strlcpy(ep->name, brdid.name, TI_EEPROM_HDR_NAME_LEN + 1);
234 ti_eeprom_string_cleanup(ep->name);
235 strlcpy(ep->version, brdid.version, TI_EEPROM_HDR_REV_LEN + 1);
236 ti_eeprom_string_cleanup(ep->version);
237 strlcpy(ep->serial, brdid.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
238 ti_eeprom_string_cleanup(ep->serial);
239
240 cleanup:
241 free(buffer);
242
243 return rc;
244 }
245
ti_i2c_eeprom_am_set(const char * name,const char * rev)246 int __maybe_unused ti_i2c_eeprom_am_set(const char *name, const char *rev)
247 {
248 struct ti_common_eeprom *ep;
249
250 if (!name || !rev)
251 return -1;
252
253 ep = TI_EEPROM_DATA;
254 if (ep->header == TI_EEPROM_HEADER_MAGIC)
255 goto already_set;
256
257 /* Set to 0 all fields */
258 memset(ep, 0, sizeof(*ep));
259 strncpy(ep->name, name, TI_EEPROM_HDR_NAME_LEN);
260 strncpy(ep->version, rev, TI_EEPROM_HDR_REV_LEN);
261 /* Some dummy serial number to identify the platform */
262 strncpy(ep->serial, "0000", TI_EEPROM_HDR_SERIAL_LEN);
263 /* Mark it with a valid header */
264 ep->header = TI_EEPROM_HEADER_MAGIC;
265
266 already_set:
267 return 0;
268 }
269
ti_i2c_eeprom_am_get(int bus_addr,int dev_addr)270 int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr)
271 {
272 int rc;
273 struct ti_am_eeprom am_ep;
274 struct ti_common_eeprom *ep;
275
276 ep = TI_EEPROM_DATA;
277 #ifndef CONFIG_SPL_BUILD
278 if (ep->header == TI_EEPROM_HEADER_MAGIC)
279 return 0; /* EEPROM has already been read */
280 #endif
281
282 /* Initialize with a known bad marker for i2c fails.. */
283 ep->header = TI_DEAD_EEPROM_MAGIC;
284 ep->name[0] = 0x0;
285 ep->version[0] = 0x0;
286 ep->serial[0] = 0x0;
287 ep->config[0] = 0x0;
288
289 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
290 sizeof(am_ep), (uint8_t *)&am_ep);
291 if (rc)
292 return rc;
293
294 ep->header = am_ep.header;
295 strlcpy(ep->name, am_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
296 ti_eeprom_string_cleanup(ep->name);
297
298 /* BeagleBone Green '1' eeprom, board_rev: 0x1a 0x00 0x00 0x00 */
299 if (am_ep.version[0] == 0x1a && am_ep.version[1] == 0x00 &&
300 am_ep.version[2] == 0x00 && am_ep.version[3] == 0x00)
301 strlcpy(ep->version, "BBG1", TI_EEPROM_HDR_REV_LEN + 1);
302 else
303 strlcpy(ep->version, am_ep.version, TI_EEPROM_HDR_REV_LEN + 1);
304 ti_eeprom_string_cleanup(ep->version);
305 strlcpy(ep->serial, am_ep.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
306 ti_eeprom_string_cleanup(ep->serial);
307 strlcpy(ep->config, am_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
308 ti_eeprom_string_cleanup(ep->config);
309
310 memcpy(ep->mac_addr, am_ep.mac_addr,
311 TI_EEPROM_HDR_NO_OF_MAC_ADDR * TI_EEPROM_HDR_ETH_ALEN);
312
313 return 0;
314 }
315
ti_i2c_eeprom_dra7_get(int bus_addr,int dev_addr)316 int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr)
317 {
318 int rc, offset = 0;
319 struct dra7_eeprom dra7_ep;
320 struct ti_common_eeprom *ep;
321
322 ep = TI_EEPROM_DATA;
323 #ifndef CONFIG_SPL_BUILD
324 if (ep->header == DRA7_EEPROM_HEADER_MAGIC)
325 return 0; /* EEPROM has already been read */
326 #endif
327
328 /* Initialize with a known bad marker for i2c fails.. */
329 ep->header = TI_DEAD_EEPROM_MAGIC;
330 ep->name[0] = 0x0;
331 ep->version[0] = 0x0;
332 ep->serial[0] = 0x0;
333 ep->config[0] = 0x0;
334 ep->emif1_size = 0;
335 ep->emif2_size = 0;
336
337 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, DRA7_EEPROM_HEADER_MAGIC,
338 sizeof(dra7_ep), (uint8_t *)&dra7_ep);
339 if (rc)
340 return rc;
341
342 ep->header = dra7_ep.header;
343 strlcpy(ep->name, dra7_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
344 ti_eeprom_string_cleanup(ep->name);
345
346 offset = dra7_ep.version_major - 1;
347
348 /* Rev F is skipped */
349 if (offset >= 5)
350 offset = offset + 1;
351 snprintf(ep->version, TI_EEPROM_HDR_REV_LEN + 1, "%c.%d",
352 'A' + offset, dra7_ep.version_minor);
353 ti_eeprom_string_cleanup(ep->version);
354 ep->emif1_size = (u64)dra7_ep.emif1_size;
355 ep->emif2_size = (u64)dra7_ep.emif2_size;
356 strlcpy(ep->config, dra7_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
357 ti_eeprom_string_cleanup(ep->config);
358
359 return 0;
360 }
361
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)362 static int ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record *record,
363 struct ti_am6_eeprom *ep,
364 char **mac_addr,
365 u8 mac_addr_max_cnt,
366 u8 *mac_addr_cnt)
367 {
368 switch (record->header.id) {
369 case TI_AM6_EEPROM_RECORD_BOARD_INFO:
370 if (record->header.len != sizeof(record->data.board_info))
371 return -EINVAL;
372
373 if (!ep)
374 break;
375
376 /* Populate (and clean, if needed) the board name */
377 strlcpy(ep->name, record->data.board_info.name,
378 sizeof(ep->name));
379 ti_eeprom_string_cleanup(ep->name);
380
381 /* Populate selected other fields from the board info record */
382 strlcpy(ep->version, record->data.board_info.version,
383 sizeof(ep->version));
384 strlcpy(ep->software_revision,
385 record->data.board_info.software_revision,
386 sizeof(ep->software_revision));
387 strlcpy(ep->serial, record->data.board_info.serial,
388 sizeof(ep->serial));
389 break;
390 case TI_AM6_EEPROM_RECORD_MAC_INFO:
391 if (record->header.len != sizeof(record->data.mac_info))
392 return -EINVAL;
393
394 if (!mac_addr || !mac_addr_max_cnt)
395 break;
396
397 *mac_addr_cnt = ((record->data.mac_info.mac_control &
398 TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK) >>
399 TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT) + 1;
400
401 /*
402 * The EEPROM can (but may not) hold a very large amount
403 * of MAC addresses, by far exceeding what we want/can store
404 * in the common memory array, so only grab what we can fit.
405 * Note that a value of 0 means 1 MAC address, and so on.
406 */
407 *mac_addr_cnt = min(*mac_addr_cnt, mac_addr_max_cnt);
408
409 memcpy(mac_addr, record->data.mac_info.mac_addr,
410 *mac_addr_cnt * TI_EEPROM_HDR_ETH_ALEN);
411 break;
412 case 0x00:
413 /* Illegal value... Fall through... */
414 case 0xFF:
415 /* Illegal value... Something went horribly wrong... */
416 return -EINVAL;
417 default:
418 pr_warn("%s: Ignoring record id %u\n", __func__,
419 record->header.id);
420 }
421
422 return 0;
423 }
424
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)425 int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
426 struct ti_am6_eeprom *ep,
427 char **mac_addr,
428 u8 mac_addr_max_cnt,
429 u8 *mac_addr_cnt)
430 {
431 struct udevice *dev;
432 struct udevice *bus;
433 unsigned int eeprom_addr;
434 struct ti_am6_eeprom_record_board_id board_id;
435 struct ti_am6_eeprom_record record;
436 int rc;
437
438 /* Initialize with a known bad marker for i2c fails.. */
439 memset(ep, 0, sizeof(*ep));
440 ep->header = TI_DEAD_EEPROM_MAGIC;
441
442 /* Read the board ID record which is always the first EEPROM record */
443 rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
444 sizeof(board_id), (uint8_t *)&board_id);
445 if (rc)
446 return rc;
447
448 if (board_id.header.id != TI_AM6_EEPROM_RECORD_BOARD_ID) {
449 pr_err("%s: Invalid board ID record!\n", __func__);
450 return -EINVAL;
451 }
452
453 /* Establish DM handle to board config EEPROM */
454 rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
455 if (rc)
456 return rc;
457 rc = i2c_get_chip(bus, dev_addr, 1, &dev);
458 if (rc)
459 return rc;
460
461 ep->header = TI_EEPROM_HEADER_MAGIC;
462
463 /* Ready to parse TLV structure. Initialize variables... */
464 *mac_addr_cnt = 0;
465
466 /*
467 * After the all-encompassing board ID record all other records follow
468 * a TLV-type scheme. Point to the first such record and then start
469 * parsing those one by one.
470 */
471 eeprom_addr = sizeof(board_id);
472
473 while (true) {
474 rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header,
475 sizeof(record.header));
476 if (rc)
477 return rc;
478
479 /*
480 * Check for end of list marker. If we reached it don't go
481 * any further and stop parsing right here.
482 */
483 if (record.header.id == TI_AM6_EEPROM_RECORD_END_LIST)
484 break;
485
486 eeprom_addr += sizeof(record.header);
487
488 debug("%s: dev_addr=0x%02x header.id=%u header.len=%u\n",
489 __func__, dev_addr, record.header.id,
490 record.header.len);
491
492 /* Read record into memory if it fits */
493 if (record.header.len <= sizeof(record.data)) {
494 rc = dm_i2c_read(dev, eeprom_addr,
495 (uint8_t *)&record.data,
496 record.header.len);
497 if (rc)
498 return rc;
499
500 /* Process record */
501 rc = ti_i2c_eeprom_am6_parse_record(&record, ep,
502 mac_addr,
503 mac_addr_max_cnt,
504 mac_addr_cnt);
505 if (rc) {
506 pr_err("%s: EEPROM parsing error!\n", __func__);
507 return rc;
508 }
509 } else {
510 /*
511 * We may get here in case of larger records which
512 * are not yet understood.
513 */
514 pr_err("%s: Ignoring record id %u\n", __func__,
515 record.header.id);
516 }
517
518 eeprom_addr += record.header.len;
519 }
520
521 return 0;
522 }
523
ti_i2c_eeprom_am6_get_base(int bus_addr,int dev_addr)524 int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr)
525 {
526 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
527 int ret;
528
529 /*
530 * Always execute EEPROM read by not allowing to bypass it during the
531 * first invocation of SPL which happens on the R5 core.
532 */
533 #if !(defined(CONFIG_SPL_BUILD) && defined(CONFIG_CPU_V7R))
534 if (ep->header == TI_EEPROM_HEADER_MAGIC) {
535 debug("%s: EEPROM has already been read\n", __func__);
536 return 0;
537 }
538 #endif
539
540 ret = ti_i2c_eeprom_am6_get(bus_addr, dev_addr, ep,
541 (char **)ep->mac_addr,
542 AM6_EEPROM_HDR_NO_OF_MAC_ADDR,
543 &ep->mac_addr_cnt);
544 return ret;
545 }
546
board_ti_k3_is(char * name_tag)547 bool __maybe_unused board_ti_k3_is(char *name_tag)
548 {
549 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
550
551 if (ep->header == TI_DEAD_EEPROM_MAGIC)
552 return false;
553 return !strncmp(ep->name, name_tag, AM6_EEPROM_HDR_NAME_LEN);
554 }
555
board_ti_is(char * name_tag)556 bool __maybe_unused board_ti_is(char *name_tag)
557 {
558 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
559
560 if (ep->header == TI_DEAD_EEPROM_MAGIC)
561 return false;
562 return !strncmp(ep->name, name_tag, TI_EEPROM_HDR_NAME_LEN);
563 }
564
board_ti_rev_is(char * rev_tag,int cmp_len)565 bool __maybe_unused board_ti_rev_is(char *rev_tag, int cmp_len)
566 {
567 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
568 int l;
569
570 if (ep->header == TI_DEAD_EEPROM_MAGIC)
571 return false;
572
573 l = cmp_len > TI_EEPROM_HDR_REV_LEN ? TI_EEPROM_HDR_REV_LEN : cmp_len;
574 return !strncmp(ep->version, rev_tag, l);
575 }
576
board_ti_get_rev(void)577 char * __maybe_unused board_ti_get_rev(void)
578 {
579 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
580
581 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
582 return ep->version;
583 }
584
board_ti_get_config(void)585 char * __maybe_unused board_ti_get_config(void)
586 {
587 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
588
589 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
590 return ep->config;
591 }
592
board_ti_get_name(void)593 char * __maybe_unused board_ti_get_name(void)
594 {
595 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
596
597 /* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
598 return ep->name;
599 }
600
601 void __maybe_unused
board_ti_get_eth_mac_addr(int index,u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])602 board_ti_get_eth_mac_addr(int index,
603 u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
604 {
605 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
606
607 if (ep->header == TI_DEAD_EEPROM_MAGIC)
608 goto fail;
609
610 if (index < 0 || index >= TI_EEPROM_HDR_NO_OF_MAC_ADDR)
611 goto fail;
612
613 memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
614 return;
615
616 fail:
617 memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
618 }
619
620 void __maybe_unused
board_ti_am6_get_eth_mac_addr(int index,u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])621 board_ti_am6_get_eth_mac_addr(int index,
622 u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
623 {
624 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
625
626 if (ep->header == TI_DEAD_EEPROM_MAGIC)
627 goto fail;
628
629 if (index < 0 || index >= ep->mac_addr_cnt)
630 goto fail;
631
632 memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
633 return;
634
635 fail:
636 memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
637 }
638
board_ti_get_emif1_size(void)639 u64 __maybe_unused board_ti_get_emif1_size(void)
640 {
641 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
642
643 if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
644 return 0;
645
646 return ep->emif1_size;
647 }
648
board_ti_get_emif2_size(void)649 u64 __maybe_unused board_ti_get_emif2_size(void)
650 {
651 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
652
653 if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
654 return 0;
655
656 return ep->emif2_size;
657 }
658
set_board_info_env(char * name)659 void __maybe_unused set_board_info_env(char *name)
660 {
661 char *unknown = "unknown";
662 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
663
664 if (name)
665 env_set("board_name", name);
666 else if (strlen(ep->name) != 0)
667 env_set("board_name", ep->name);
668 else
669 env_set("board_name", unknown);
670
671 if (strlen(ep->version) != 0)
672 env_set("board_rev", ep->version);
673 else
674 env_set("board_rev", unknown);
675
676 if (strlen(ep->serial) != 0)
677 env_set("board_serial", ep->serial);
678 else
679 env_set("board_serial", unknown);
680 }
681
set_board_info_env_am6(char * name)682 void __maybe_unused set_board_info_env_am6(char *name)
683 {
684 char *unknown = "unknown";
685 struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
686
687 if (name)
688 env_set("board_name", name);
689 else if (strlen(ep->name) != 0)
690 env_set("board_name", ep->name);
691 else
692 env_set("board_name", unknown);
693
694 if (strlen(ep->version) != 0)
695 env_set("board_rev", ep->version);
696 else
697 env_set("board_rev", unknown);
698
699 if (strlen(ep->software_revision) != 0)
700 env_set("board_software_revision", ep->software_revision);
701 else
702 env_set("board_software_revision", unknown);
703
704 if (strlen(ep->serial) != 0)
705 env_set("board_serial", ep->serial);
706 else
707 env_set("board_serial", unknown);
708 }
709
mac_to_u64(u8 mac[6])710 static u64 mac_to_u64(u8 mac[6])
711 {
712 int i;
713 u64 addr = 0;
714
715 for (i = 0; i < 6; i++) {
716 addr <<= 8;
717 addr |= mac[i];
718 }
719
720 return addr;
721 }
722
u64_to_mac(u64 addr,u8 mac[6])723 static void u64_to_mac(u64 addr, u8 mac[6])
724 {
725 mac[5] = addr;
726 mac[4] = addr >> 8;
727 mac[3] = addr >> 16;
728 mac[2] = addr >> 24;
729 mac[1] = addr >> 32;
730 mac[0] = addr >> 40;
731 }
732
board_ti_set_ethaddr(int index)733 void board_ti_set_ethaddr(int index)
734 {
735 uint8_t mac_addr[6];
736 int i;
737 u64 mac1, mac2;
738 u8 mac_addr1[6], mac_addr2[6];
739 int num_macs;
740 /*
741 * Export any Ethernet MAC addresses from EEPROM.
742 * The 2 MAC addresses in EEPROM define the address range.
743 */
744 board_ti_get_eth_mac_addr(0, mac_addr1);
745 board_ti_get_eth_mac_addr(1, mac_addr2);
746
747 if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
748 mac1 = mac_to_u64(mac_addr1);
749 mac2 = mac_to_u64(mac_addr2);
750
751 /* must contain an address range */
752 num_macs = mac2 - mac1 + 1;
753 if (num_macs <= 0)
754 return;
755
756 if (num_macs > 50) {
757 printf("%s: Too many MAC addresses: %d. Limiting to 50\n",
758 __func__, num_macs);
759 num_macs = 50;
760 }
761
762 for (i = 0; i < num_macs; i++) {
763 u64_to_mac(mac1 + i, mac_addr);
764 if (is_valid_ethaddr(mac_addr)) {
765 eth_env_set_enetaddr_by_index("eth", i + index,
766 mac_addr);
767 }
768 }
769 }
770 }
771
board_ti_am6_set_ethaddr(int index,int count)772 void board_ti_am6_set_ethaddr(int index, int count)
773 {
774 u8 mac_addr[6];
775 int i;
776
777 for (i = 0; i < count; i++) {
778 board_ti_am6_get_eth_mac_addr(i, mac_addr);
779 if (is_valid_ethaddr(mac_addr))
780 eth_env_set_enetaddr_by_index("eth", i + index,
781 mac_addr);
782 }
783 }
784
board_ti_was_eeprom_read(void)785 bool __maybe_unused board_ti_was_eeprom_read(void)
786 {
787 struct ti_common_eeprom *ep = TI_EEPROM_DATA;
788
789 if (ep->header == TI_EEPROM_HEADER_MAGIC)
790 return true;
791 else
792 return false;
793 }
794