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mmc: set rca to 1 for MMC cards
[people/ms/u-boot.git] / drivers / mmc / mmc.c
1 /*
2 * Copyright 2008, Freescale Semiconductor, Inc
3 * Andy Fleming
4 *
5 * Based vaguely on the Linux code
6 *
7 * SPDX-License-Identifier: GPL-2.0+
8 */
9
10 #include <config.h>
11 #include <common.h>
12 #include <command.h>
13 #include <mmc.h>
14 #include <part.h>
15 #include <malloc.h>
16 #include <linux/list.h>
17 #include <div64.h>
18 #include "mmc_private.h"
19
20 /* Set block count limit because of 16 bit register limit on some hardware*/
21 #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
22 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535
23 #endif
24
25 static struct list_head mmc_devices;
26 static int cur_dev_num = -1;
27
28 int __weak board_mmc_getwp(struct mmc *mmc)
29 {
30 return -1;
31 }
32
33 int mmc_getwp(struct mmc *mmc)
34 {
35 int wp;
36
37 wp = board_mmc_getwp(mmc);
38
39 if (wp < 0) {
40 if (mmc->getwp)
41 wp = mmc->getwp(mmc);
42 else
43 wp = 0;
44 }
45
46 return wp;
47 }
48
49 int __board_mmc_getcd(struct mmc *mmc) {
50 return -1;
51 }
52
53 int board_mmc_getcd(struct mmc *mmc)__attribute__((weak,
54 alias("__board_mmc_getcd")));
55
56 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
57 {
58 int ret;
59
60 #ifdef CONFIG_MMC_TRACE
61 int i;
62 u8 *ptr;
63
64 printf("CMD_SEND:%d\n", cmd->cmdidx);
65 printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
66 ret = mmc->send_cmd(mmc, cmd, data);
67 switch (cmd->resp_type) {
68 case MMC_RSP_NONE:
69 printf("\t\tMMC_RSP_NONE\n");
70 break;
71 case MMC_RSP_R1:
72 printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n",
73 cmd->response[0]);
74 break;
75 case MMC_RSP_R1b:
76 printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n",
77 cmd->response[0]);
78 break;
79 case MMC_RSP_R2:
80 printf("\t\tMMC_RSP_R2\t\t 0x%08X \n",
81 cmd->response[0]);
82 printf("\t\t \t\t 0x%08X \n",
83 cmd->response[1]);
84 printf("\t\t \t\t 0x%08X \n",
85 cmd->response[2]);
86 printf("\t\t \t\t 0x%08X \n",
87 cmd->response[3]);
88 printf("\n");
89 printf("\t\t\t\t\tDUMPING DATA\n");
90 for (i = 0; i < 4; i++) {
91 int j;
92 printf("\t\t\t\t\t%03d - ", i*4);
93 ptr = (u8 *)&cmd->response[i];
94 ptr += 3;
95 for (j = 0; j < 4; j++)
96 printf("%02X ", *ptr--);
97 printf("\n");
98 }
99 break;
100 case MMC_RSP_R3:
101 printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n",
102 cmd->response[0]);
103 break;
104 default:
105 printf("\t\tERROR MMC rsp not supported\n");
106 break;
107 }
108 #else
109 ret = mmc->send_cmd(mmc, cmd, data);
110 #endif
111 return ret;
112 }
113
114 int mmc_send_status(struct mmc *mmc, int timeout)
115 {
116 struct mmc_cmd cmd;
117 int err, retries = 5;
118 #ifdef CONFIG_MMC_TRACE
119 int status;
120 #endif
121
122 cmd.cmdidx = MMC_CMD_SEND_STATUS;
123 cmd.resp_type = MMC_RSP_R1;
124 if (!mmc_host_is_spi(mmc))
125 cmd.cmdarg = mmc->rca << 16;
126
127 do {
128 err = mmc_send_cmd(mmc, &cmd, NULL);
129 if (!err) {
130 if ((cmd.response[0] & MMC_STATUS_RDY_FOR_DATA) &&
131 (cmd.response[0] & MMC_STATUS_CURR_STATE) !=
132 MMC_STATE_PRG)
133 break;
134 else if (cmd.response[0] & MMC_STATUS_MASK) {
135 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
136 printf("Status Error: 0x%08X\n",
137 cmd.response[0]);
138 #endif
139 return COMM_ERR;
140 }
141 } else if (--retries < 0)
142 return err;
143
144 udelay(1000);
145
146 } while (timeout--);
147
148 #ifdef CONFIG_MMC_TRACE
149 status = (cmd.response[0] & MMC_STATUS_CURR_STATE) >> 9;
150 printf("CURR STATE:%d\n", status);
151 #endif
152 if (timeout <= 0) {
153 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
154 printf("Timeout waiting card ready\n");
155 #endif
156 return TIMEOUT;
157 }
158
159 return 0;
160 }
161
162 int mmc_set_blocklen(struct mmc *mmc, int len)
163 {
164 struct mmc_cmd cmd;
165
166 cmd.cmdidx = MMC_CMD_SET_BLOCKLEN;
167 cmd.resp_type = MMC_RSP_R1;
168 cmd.cmdarg = len;
169
170 return mmc_send_cmd(mmc, &cmd, NULL);
171 }
172
173 struct mmc *find_mmc_device(int dev_num)
174 {
175 struct mmc *m;
176 struct list_head *entry;
177
178 list_for_each(entry, &mmc_devices) {
179 m = list_entry(entry, struct mmc, link);
180
181 if (m->block_dev.dev == dev_num)
182 return m;
183 }
184
185 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
186 printf("MMC Device %d not found\n", dev_num);
187 #endif
188
189 return NULL;
190 }
191
192 static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start,
193 lbaint_t blkcnt)
194 {
195 struct mmc_cmd cmd;
196 struct mmc_data data;
197
198 if (blkcnt > 1)
199 cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK;
200 else
201 cmd.cmdidx = MMC_CMD_READ_SINGLE_BLOCK;
202
203 if (mmc->high_capacity)
204 cmd.cmdarg = start;
205 else
206 cmd.cmdarg = start * mmc->read_bl_len;
207
208 cmd.resp_type = MMC_RSP_R1;
209
210 data.dest = dst;
211 data.blocks = blkcnt;
212 data.blocksize = mmc->read_bl_len;
213 data.flags = MMC_DATA_READ;
214
215 if (mmc_send_cmd(mmc, &cmd, &data))
216 return 0;
217
218 if (blkcnt > 1) {
219 cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
220 cmd.cmdarg = 0;
221 cmd.resp_type = MMC_RSP_R1b;
222 if (mmc_send_cmd(mmc, &cmd, NULL)) {
223 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
224 printf("mmc fail to send stop cmd\n");
225 #endif
226 return 0;
227 }
228 }
229
230 return blkcnt;
231 }
232
233 static ulong mmc_bread(int dev_num, lbaint_t start, lbaint_t blkcnt, void *dst)
234 {
235 lbaint_t cur, blocks_todo = blkcnt;
236
237 if (blkcnt == 0)
238 return 0;
239
240 struct mmc *mmc = find_mmc_device(dev_num);
241 if (!mmc)
242 return 0;
243
244 if ((start + blkcnt) > mmc->block_dev.lba) {
245 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
246 printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n",
247 start + blkcnt, mmc->block_dev.lba);
248 #endif
249 return 0;
250 }
251
252 if (mmc_set_blocklen(mmc, mmc->read_bl_len))
253 return 0;
254
255 do {
256 cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo;
257 if(mmc_read_blocks(mmc, dst, start, cur) != cur)
258 return 0;
259 blocks_todo -= cur;
260 start += cur;
261 dst += cur * mmc->read_bl_len;
262 } while (blocks_todo > 0);
263
264 return blkcnt;
265 }
266
267 static int mmc_go_idle(struct mmc *mmc)
268 {
269 struct mmc_cmd cmd;
270 int err;
271
272 udelay(1000);
273
274 cmd.cmdidx = MMC_CMD_GO_IDLE_STATE;
275 cmd.cmdarg = 0;
276 cmd.resp_type = MMC_RSP_NONE;
277
278 err = mmc_send_cmd(mmc, &cmd, NULL);
279
280 if (err)
281 return err;
282
283 udelay(2000);
284
285 return 0;
286 }
287
288 static int sd_send_op_cond(struct mmc *mmc)
289 {
290 int timeout = 1000;
291 int err;
292 struct mmc_cmd cmd;
293
294 do {
295 cmd.cmdidx = MMC_CMD_APP_CMD;
296 cmd.resp_type = MMC_RSP_R1;
297 cmd.cmdarg = 0;
298
299 err = mmc_send_cmd(mmc, &cmd, NULL);
300
301 if (err)
302 return err;
303
304 cmd.cmdidx = SD_CMD_APP_SEND_OP_COND;
305 cmd.resp_type = MMC_RSP_R3;
306
307 /*
308 * Most cards do not answer if some reserved bits
309 * in the ocr are set. However, Some controller
310 * can set bit 7 (reserved for low voltages), but
311 * how to manage low voltages SD card is not yet
312 * specified.
313 */
314 cmd.cmdarg = mmc_host_is_spi(mmc) ? 0 :
315 (mmc->voltages & 0xff8000);
316
317 if (mmc->version == SD_VERSION_2)
318 cmd.cmdarg |= OCR_HCS;
319
320 err = mmc_send_cmd(mmc, &cmd, NULL);
321
322 if (err)
323 return err;
324
325 udelay(1000);
326 } while ((!(cmd.response[0] & OCR_BUSY)) && timeout--);
327
328 if (timeout <= 0)
329 return UNUSABLE_ERR;
330
331 if (mmc->version != SD_VERSION_2)
332 mmc->version = SD_VERSION_1_0;
333
334 if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
335 cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
336 cmd.resp_type = MMC_RSP_R3;
337 cmd.cmdarg = 0;
338
339 err = mmc_send_cmd(mmc, &cmd, NULL);
340
341 if (err)
342 return err;
343 }
344
345 mmc->ocr = cmd.response[0];
346
347 mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
348 mmc->rca = 0;
349
350 return 0;
351 }
352
353 /* We pass in the cmd since otherwise the init seems to fail */
354 static int mmc_send_op_cond_iter(struct mmc *mmc, struct mmc_cmd *cmd,
355 int use_arg)
356 {
357 int err;
358
359 cmd->cmdidx = MMC_CMD_SEND_OP_COND;
360 cmd->resp_type = MMC_RSP_R3;
361 cmd->cmdarg = 0;
362 if (use_arg && !mmc_host_is_spi(mmc)) {
363 cmd->cmdarg =
364 (mmc->voltages &
365 (mmc->op_cond_response & OCR_VOLTAGE_MASK)) |
366 (mmc->op_cond_response & OCR_ACCESS_MODE);
367
368 if (mmc->host_caps & MMC_MODE_HC)
369 cmd->cmdarg |= OCR_HCS;
370 }
371 err = mmc_send_cmd(mmc, cmd, NULL);
372 if (err)
373 return err;
374 mmc->op_cond_response = cmd->response[0];
375 return 0;
376 }
377
378 int mmc_send_op_cond(struct mmc *mmc)
379 {
380 struct mmc_cmd cmd;
381 int err, i;
382
383 /* Some cards seem to need this */
384 mmc_go_idle(mmc);
385
386 /* Asking to the card its capabilities */
387 mmc->op_cond_pending = 1;
388 for (i = 0; i < 2; i++) {
389 err = mmc_send_op_cond_iter(mmc, &cmd, i != 0);
390 if (err)
391 return err;
392
393 /* exit if not busy (flag seems to be inverted) */
394 if (mmc->op_cond_response & OCR_BUSY)
395 return 0;
396 }
397 return IN_PROGRESS;
398 }
399
400 int mmc_complete_op_cond(struct mmc *mmc)
401 {
402 struct mmc_cmd cmd;
403 int timeout = 1000;
404 uint start;
405 int err;
406
407 mmc->op_cond_pending = 0;
408 start = get_timer(0);
409 do {
410 err = mmc_send_op_cond_iter(mmc, &cmd, 1);
411 if (err)
412 return err;
413 if (get_timer(start) > timeout)
414 return UNUSABLE_ERR;
415 udelay(100);
416 } while (!(mmc->op_cond_response & OCR_BUSY));
417
418 if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
419 cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
420 cmd.resp_type = MMC_RSP_R3;
421 cmd.cmdarg = 0;
422
423 err = mmc_send_cmd(mmc, &cmd, NULL);
424
425 if (err)
426 return err;
427 }
428
429 mmc->version = MMC_VERSION_UNKNOWN;
430 mmc->ocr = cmd.response[0];
431
432 mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
433 mmc->rca = 1;
434
435 return 0;
436 }
437
438
439 static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd)
440 {
441 struct mmc_cmd cmd;
442 struct mmc_data data;
443 int err;
444
445 /* Get the Card Status Register */
446 cmd.cmdidx = MMC_CMD_SEND_EXT_CSD;
447 cmd.resp_type = MMC_RSP_R1;
448 cmd.cmdarg = 0;
449
450 data.dest = (char *)ext_csd;
451 data.blocks = 1;
452 data.blocksize = MMC_MAX_BLOCK_LEN;
453 data.flags = MMC_DATA_READ;
454
455 err = mmc_send_cmd(mmc, &cmd, &data);
456
457 return err;
458 }
459
460
461 static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
462 {
463 struct mmc_cmd cmd;
464 int timeout = 1000;
465 int ret;
466
467 cmd.cmdidx = MMC_CMD_SWITCH;
468 cmd.resp_type = MMC_RSP_R1b;
469 cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
470 (index << 16) |
471 (value << 8);
472
473 ret = mmc_send_cmd(mmc, &cmd, NULL);
474
475 /* Waiting for the ready status */
476 if (!ret)
477 ret = mmc_send_status(mmc, timeout);
478
479 return ret;
480
481 }
482
483 static int mmc_change_freq(struct mmc *mmc)
484 {
485 ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
486 char cardtype;
487 int err;
488
489 mmc->card_caps = 0;
490
491 if (mmc_host_is_spi(mmc))
492 return 0;
493
494 /* Only version 4 supports high-speed */
495 if (mmc->version < MMC_VERSION_4)
496 return 0;
497
498 err = mmc_send_ext_csd(mmc, ext_csd);
499
500 if (err)
501 return err;
502
503 cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf;
504
505 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);
506
507 if (err)
508 return err;
509
510 /* Now check to see that it worked */
511 err = mmc_send_ext_csd(mmc, ext_csd);
512
513 if (err)
514 return err;
515
516 /* No high-speed support */
517 if (!ext_csd[EXT_CSD_HS_TIMING])
518 return 0;
519
520 /* High Speed is set, there are two types: 52MHz and 26MHz */
521 if (cardtype & MMC_HS_52MHZ)
522 mmc->card_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
523 else
524 mmc->card_caps |= MMC_MODE_HS;
525
526 return 0;
527 }
528
529 static int mmc_set_capacity(struct mmc *mmc, int part_num)
530 {
531 switch (part_num) {
532 case 0:
533 mmc->capacity = mmc->capacity_user;
534 break;
535 case 1:
536 case 2:
537 mmc->capacity = mmc->capacity_boot;
538 break;
539 case 3:
540 mmc->capacity = mmc->capacity_rpmb;
541 break;
542 case 4:
543 case 5:
544 case 6:
545 case 7:
546 mmc->capacity = mmc->capacity_gp[part_num - 4];
547 break;
548 default:
549 return -1;
550 }
551
552 mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
553
554 return 0;
555 }
556
557 int mmc_switch_part(int dev_num, unsigned int part_num)
558 {
559 struct mmc *mmc = find_mmc_device(dev_num);
560 int ret;
561
562 if (!mmc)
563 return -1;
564
565 ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
566 (mmc->part_config & ~PART_ACCESS_MASK)
567 | (part_num & PART_ACCESS_MASK));
568 if (ret)
569 return ret;
570
571 return mmc_set_capacity(mmc, part_num);
572 }
573
574 int mmc_getcd(struct mmc *mmc)
575 {
576 int cd;
577
578 cd = board_mmc_getcd(mmc);
579
580 if (cd < 0) {
581 if (mmc->getcd)
582 cd = mmc->getcd(mmc);
583 else
584 cd = 1;
585 }
586
587 return cd;
588 }
589
590 static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
591 {
592 struct mmc_cmd cmd;
593 struct mmc_data data;
594
595 /* Switch the frequency */
596 cmd.cmdidx = SD_CMD_SWITCH_FUNC;
597 cmd.resp_type = MMC_RSP_R1;
598 cmd.cmdarg = (mode << 31) | 0xffffff;
599 cmd.cmdarg &= ~(0xf << (group * 4));
600 cmd.cmdarg |= value << (group * 4);
601
602 data.dest = (char *)resp;
603 data.blocksize = 64;
604 data.blocks = 1;
605 data.flags = MMC_DATA_READ;
606
607 return mmc_send_cmd(mmc, &cmd, &data);
608 }
609
610
611 static int sd_change_freq(struct mmc *mmc)
612 {
613 int err;
614 struct mmc_cmd cmd;
615 ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2);
616 ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16);
617 struct mmc_data data;
618 int timeout;
619
620 mmc->card_caps = 0;
621
622 if (mmc_host_is_spi(mmc))
623 return 0;
624
625 /* Read the SCR to find out if this card supports higher speeds */
626 cmd.cmdidx = MMC_CMD_APP_CMD;
627 cmd.resp_type = MMC_RSP_R1;
628 cmd.cmdarg = mmc->rca << 16;
629
630 err = mmc_send_cmd(mmc, &cmd, NULL);
631
632 if (err)
633 return err;
634
635 cmd.cmdidx = SD_CMD_APP_SEND_SCR;
636 cmd.resp_type = MMC_RSP_R1;
637 cmd.cmdarg = 0;
638
639 timeout = 3;
640
641 retry_scr:
642 data.dest = (char *)scr;
643 data.blocksize = 8;
644 data.blocks = 1;
645 data.flags = MMC_DATA_READ;
646
647 err = mmc_send_cmd(mmc, &cmd, &data);
648
649 if (err) {
650 if (timeout--)
651 goto retry_scr;
652
653 return err;
654 }
655
656 mmc->scr[0] = __be32_to_cpu(scr[0]);
657 mmc->scr[1] = __be32_to_cpu(scr[1]);
658
659 switch ((mmc->scr[0] >> 24) & 0xf) {
660 case 0:
661 mmc->version = SD_VERSION_1_0;
662 break;
663 case 1:
664 mmc->version = SD_VERSION_1_10;
665 break;
666 case 2:
667 mmc->version = SD_VERSION_2;
668 if ((mmc->scr[0] >> 15) & 0x1)
669 mmc->version = SD_VERSION_3;
670 break;
671 default:
672 mmc->version = SD_VERSION_1_0;
673 break;
674 }
675
676 if (mmc->scr[0] & SD_DATA_4BIT)
677 mmc->card_caps |= MMC_MODE_4BIT;
678
679 /* Version 1.0 doesn't support switching */
680 if (mmc->version == SD_VERSION_1_0)
681 return 0;
682
683 timeout = 4;
684 while (timeout--) {
685 err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1,
686 (u8 *)switch_status);
687
688 if (err)
689 return err;
690
691 /* The high-speed function is busy. Try again */
692 if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY))
693 break;
694 }
695
696 /* If high-speed isn't supported, we return */
697 if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
698 return 0;
699
700 /*
701 * If the host doesn't support SD_HIGHSPEED, do not switch card to
702 * HIGHSPEED mode even if the card support SD_HIGHSPPED.
703 * This can avoid furthur problem when the card runs in different
704 * mode between the host.
705 */
706 if (!((mmc->host_caps & MMC_MODE_HS_52MHz) &&
707 (mmc->host_caps & MMC_MODE_HS)))
708 return 0;
709
710 err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status);
711
712 if (err)
713 return err;
714
715 if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000)
716 mmc->card_caps |= MMC_MODE_HS;
717
718 return 0;
719 }
720
721 /* frequency bases */
722 /* divided by 10 to be nice to platforms without floating point */
723 static const int fbase[] = {
724 10000,
725 100000,
726 1000000,
727 10000000,
728 };
729
730 /* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice
731 * to platforms without floating point.
732 */
733 static const int multipliers[] = {
734 0, /* reserved */
735 10,
736 12,
737 13,
738 15,
739 20,
740 25,
741 30,
742 35,
743 40,
744 45,
745 50,
746 55,
747 60,
748 70,
749 80,
750 };
751
752 static void mmc_set_ios(struct mmc *mmc)
753 {
754 mmc->set_ios(mmc);
755 }
756
757 void mmc_set_clock(struct mmc *mmc, uint clock)
758 {
759 if (clock > mmc->f_max)
760 clock = mmc->f_max;
761
762 if (clock < mmc->f_min)
763 clock = mmc->f_min;
764
765 mmc->clock = clock;
766
767 mmc_set_ios(mmc);
768 }
769
770 static void mmc_set_bus_width(struct mmc *mmc, uint width)
771 {
772 mmc->bus_width = width;
773
774 mmc_set_ios(mmc);
775 }
776
777 static int mmc_startup(struct mmc *mmc)
778 {
779 int err, i;
780 uint mult, freq;
781 u64 cmult, csize, capacity;
782 struct mmc_cmd cmd;
783 ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
784 ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
785 int timeout = 1000;
786
787 #ifdef CONFIG_MMC_SPI_CRC_ON
788 if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */
789 cmd.cmdidx = MMC_CMD_SPI_CRC_ON_OFF;
790 cmd.resp_type = MMC_RSP_R1;
791 cmd.cmdarg = 1;
792 err = mmc_send_cmd(mmc, &cmd, NULL);
793
794 if (err)
795 return err;
796 }
797 #endif
798
799 /* Put the Card in Identify Mode */
800 cmd.cmdidx = mmc_host_is_spi(mmc) ? MMC_CMD_SEND_CID :
801 MMC_CMD_ALL_SEND_CID; /* cmd not supported in spi */
802 cmd.resp_type = MMC_RSP_R2;
803 cmd.cmdarg = 0;
804
805 err = mmc_send_cmd(mmc, &cmd, NULL);
806
807 if (err)
808 return err;
809
810 memcpy(mmc->cid, cmd.response, 16);
811
812 /*
813 * For MMC cards, set the Relative Address.
814 * For SD cards, get the Relatvie Address.
815 * This also puts the cards into Standby State
816 */
817 if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
818 cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR;
819 cmd.cmdarg = mmc->rca << 16;
820 cmd.resp_type = MMC_RSP_R6;
821
822 err = mmc_send_cmd(mmc, &cmd, NULL);
823
824 if (err)
825 return err;
826
827 if (IS_SD(mmc))
828 mmc->rca = (cmd.response[0] >> 16) & 0xffff;
829 }
830
831 /* Get the Card-Specific Data */
832 cmd.cmdidx = MMC_CMD_SEND_CSD;
833 cmd.resp_type = MMC_RSP_R2;
834 cmd.cmdarg = mmc->rca << 16;
835
836 err = mmc_send_cmd(mmc, &cmd, NULL);
837
838 /* Waiting for the ready status */
839 mmc_send_status(mmc, timeout);
840
841 if (err)
842 return err;
843
844 mmc->csd[0] = cmd.response[0];
845 mmc->csd[1] = cmd.response[1];
846 mmc->csd[2] = cmd.response[2];
847 mmc->csd[3] = cmd.response[3];
848
849 if (mmc->version == MMC_VERSION_UNKNOWN) {
850 int version = (cmd.response[0] >> 26) & 0xf;
851
852 switch (version) {
853 case 0:
854 mmc->version = MMC_VERSION_1_2;
855 break;
856 case 1:
857 mmc->version = MMC_VERSION_1_4;
858 break;
859 case 2:
860 mmc->version = MMC_VERSION_2_2;
861 break;
862 case 3:
863 mmc->version = MMC_VERSION_3;
864 break;
865 case 4:
866 mmc->version = MMC_VERSION_4;
867 break;
868 default:
869 mmc->version = MMC_VERSION_1_2;
870 break;
871 }
872 }
873
874 /* divide frequency by 10, since the mults are 10x bigger */
875 freq = fbase[(cmd.response[0] & 0x7)];
876 mult = multipliers[((cmd.response[0] >> 3) & 0xf)];
877
878 mmc->tran_speed = freq * mult;
879
880 mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1);
881 mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf);
882
883 if (IS_SD(mmc))
884 mmc->write_bl_len = mmc->read_bl_len;
885 else
886 mmc->write_bl_len = 1 << ((cmd.response[3] >> 22) & 0xf);
887
888 if (mmc->high_capacity) {
889 csize = (mmc->csd[1] & 0x3f) << 16
890 | (mmc->csd[2] & 0xffff0000) >> 16;
891 cmult = 8;
892 } else {
893 csize = (mmc->csd[1] & 0x3ff) << 2
894 | (mmc->csd[2] & 0xc0000000) >> 30;
895 cmult = (mmc->csd[2] & 0x00038000) >> 15;
896 }
897
898 mmc->capacity_user = (csize + 1) << (cmult + 2);
899 mmc->capacity_user *= mmc->read_bl_len;
900 mmc->capacity_boot = 0;
901 mmc->capacity_rpmb = 0;
902 for (i = 0; i < 4; i++)
903 mmc->capacity_gp[i] = 0;
904
905 if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN)
906 mmc->read_bl_len = MMC_MAX_BLOCK_LEN;
907
908 if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN)
909 mmc->write_bl_len = MMC_MAX_BLOCK_LEN;
910
911 if ((mmc->dsr_imp) && (0xffffffff != mmc->dsr)) {
912 cmd.cmdidx = MMC_CMD_SET_DSR;
913 cmd.cmdarg = (mmc->dsr & 0xffff) << 16;
914 cmd.resp_type = MMC_RSP_NONE;
915 if (mmc_send_cmd(mmc, &cmd, NULL))
916 printf("MMC: SET_DSR failed\n");
917 }
918
919 /* Select the card, and put it into Transfer Mode */
920 if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
921 cmd.cmdidx = MMC_CMD_SELECT_CARD;
922 cmd.resp_type = MMC_RSP_R1;
923 cmd.cmdarg = mmc->rca << 16;
924 err = mmc_send_cmd(mmc, &cmd, NULL);
925
926 if (err)
927 return err;
928 }
929
930 /*
931 * For SD, its erase group is always one sector
932 */
933 mmc->erase_grp_size = 1;
934 mmc->part_config = MMCPART_NOAVAILABLE;
935 if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) {
936 /* check ext_csd version and capacity */
937 err = mmc_send_ext_csd(mmc, ext_csd);
938 if (!err && (ext_csd[EXT_CSD_REV] >= 2)) {
939 /*
940 * According to the JEDEC Standard, the value of
941 * ext_csd's capacity is valid if the value is more
942 * than 2GB
943 */
944 capacity = ext_csd[EXT_CSD_SEC_CNT] << 0
945 | ext_csd[EXT_CSD_SEC_CNT + 1] << 8
946 | ext_csd[EXT_CSD_SEC_CNT + 2] << 16
947 | ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
948 capacity *= MMC_MAX_BLOCK_LEN;
949 if ((capacity >> 20) > 2 * 1024)
950 mmc->capacity_user = capacity;
951 }
952
953 switch (ext_csd[EXT_CSD_REV]) {
954 case 1:
955 mmc->version = MMC_VERSION_4_1;
956 break;
957 case 2:
958 mmc->version = MMC_VERSION_4_2;
959 break;
960 case 3:
961 mmc->version = MMC_VERSION_4_3;
962 break;
963 case 5:
964 mmc->version = MMC_VERSION_4_41;
965 break;
966 case 6:
967 mmc->version = MMC_VERSION_4_5;
968 break;
969 }
970
971 /*
972 * Host needs to enable ERASE_GRP_DEF bit if device is
973 * partitioned. This bit will be lost every time after a reset
974 * or power off. This will affect erase size.
975 */
976 if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) &&
977 (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB)) {
978 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
979 EXT_CSD_ERASE_GROUP_DEF, 1);
980
981 if (err)
982 return err;
983
984 /* Read out group size from ext_csd */
985 mmc->erase_grp_size =
986 ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
987 MMC_MAX_BLOCK_LEN * 1024;
988 } else {
989 /* Calculate the group size from the csd value. */
990 int erase_gsz, erase_gmul;
991 erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
992 erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
993 mmc->erase_grp_size = (erase_gsz + 1)
994 * (erase_gmul + 1);
995 }
996
997 /* store the partition info of emmc */
998 if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
999 ext_csd[EXT_CSD_BOOT_MULT])
1000 mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
1001
1002 mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17;
1003
1004 mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17;
1005
1006 for (i = 0; i < 4; i++) {
1007 int idx = EXT_CSD_GP_SIZE_MULT + i * 3;
1008 mmc->capacity_gp[i] = (ext_csd[idx + 2] << 16) +
1009 (ext_csd[idx + 1] << 8) + ext_csd[idx];
1010 mmc->capacity_gp[i] *=
1011 ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
1012 mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
1013 }
1014 }
1015
1016 err = mmc_set_capacity(mmc, mmc->part_num);
1017 if (err)
1018 return err;
1019
1020 if (IS_SD(mmc))
1021 err = sd_change_freq(mmc);
1022 else
1023 err = mmc_change_freq(mmc);
1024
1025 if (err)
1026 return err;
1027
1028 /* Restrict card's capabilities by what the host can do */
1029 mmc->card_caps &= mmc->host_caps;
1030
1031 if (IS_SD(mmc)) {
1032 if (mmc->card_caps & MMC_MODE_4BIT) {
1033 cmd.cmdidx = MMC_CMD_APP_CMD;
1034 cmd.resp_type = MMC_RSP_R1;
1035 cmd.cmdarg = mmc->rca << 16;
1036
1037 err = mmc_send_cmd(mmc, &cmd, NULL);
1038 if (err)
1039 return err;
1040
1041 cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH;
1042 cmd.resp_type = MMC_RSP_R1;
1043 cmd.cmdarg = 2;
1044 err = mmc_send_cmd(mmc, &cmd, NULL);
1045 if (err)
1046 return err;
1047
1048 mmc_set_bus_width(mmc, 4);
1049 }
1050
1051 if (mmc->card_caps & MMC_MODE_HS)
1052 mmc->tran_speed = 50000000;
1053 else
1054 mmc->tran_speed = 25000000;
1055 } else {
1056 int idx;
1057
1058 /* An array of possible bus widths in order of preference */
1059 static unsigned ext_csd_bits[] = {
1060 EXT_CSD_BUS_WIDTH_8,
1061 EXT_CSD_BUS_WIDTH_4,
1062 EXT_CSD_BUS_WIDTH_1,
1063 };
1064
1065 /* An array to map CSD bus widths to host cap bits */
1066 static unsigned ext_to_hostcaps[] = {
1067 [EXT_CSD_BUS_WIDTH_4] = MMC_MODE_4BIT,
1068 [EXT_CSD_BUS_WIDTH_8] = MMC_MODE_8BIT,
1069 };
1070
1071 /* An array to map chosen bus width to an integer */
1072 static unsigned widths[] = {
1073 8, 4, 1,
1074 };
1075
1076 for (idx=0; idx < ARRAY_SIZE(ext_csd_bits); idx++) {
1077 unsigned int extw = ext_csd_bits[idx];
1078
1079 /*
1080 * Check to make sure the controller supports
1081 * this bus width, if it's more than 1
1082 */
1083 if (extw != EXT_CSD_BUS_WIDTH_1 &&
1084 !(mmc->host_caps & ext_to_hostcaps[extw]))
1085 continue;
1086
1087 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
1088 EXT_CSD_BUS_WIDTH, extw);
1089
1090 if (err)
1091 continue;
1092
1093 mmc_set_bus_width(mmc, widths[idx]);
1094
1095 err = mmc_send_ext_csd(mmc, test_csd);
1096 if (!err && ext_csd[EXT_CSD_PARTITIONING_SUPPORT] \
1097 == test_csd[EXT_CSD_PARTITIONING_SUPPORT]
1098 && ext_csd[EXT_CSD_ERASE_GROUP_DEF] \
1099 == test_csd[EXT_CSD_ERASE_GROUP_DEF] \
1100 && ext_csd[EXT_CSD_REV] \
1101 == test_csd[EXT_CSD_REV]
1102 && ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] \
1103 == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
1104 && memcmp(&ext_csd[EXT_CSD_SEC_CNT], \
1105 &test_csd[EXT_CSD_SEC_CNT], 4) == 0) {
1106
1107 mmc->card_caps |= ext_to_hostcaps[extw];
1108 break;
1109 }
1110 }
1111
1112 if (mmc->card_caps & MMC_MODE_HS) {
1113 if (mmc->card_caps & MMC_MODE_HS_52MHz)
1114 mmc->tran_speed = 52000000;
1115 else
1116 mmc->tran_speed = 26000000;
1117 }
1118 }
1119
1120 mmc_set_clock(mmc, mmc->tran_speed);
1121
1122 /* fill in device description */
1123 mmc->block_dev.lun = 0;
1124 mmc->block_dev.type = 0;
1125 mmc->block_dev.blksz = mmc->read_bl_len;
1126 mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz);
1127 mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
1128 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1129 sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x",
1130 mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff),
1131 (mmc->cid[3] >> 16) & 0xffff);
1132 sprintf(mmc->block_dev.product, "%c%c%c%c%c%c", mmc->cid[0] & 0xff,
1133 (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
1134 (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff,
1135 (mmc->cid[2] >> 24) & 0xff);
1136 sprintf(mmc->block_dev.revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf,
1137 (mmc->cid[2] >> 16) & 0xf);
1138 #else
1139 mmc->block_dev.vendor[0] = 0;
1140 mmc->block_dev.product[0] = 0;
1141 mmc->block_dev.revision[0] = 0;
1142 #endif
1143 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT)
1144 init_part(&mmc->block_dev);
1145 #endif
1146
1147 return 0;
1148 }
1149
1150 static int mmc_send_if_cond(struct mmc *mmc)
1151 {
1152 struct mmc_cmd cmd;
1153 int err;
1154
1155 cmd.cmdidx = SD_CMD_SEND_IF_COND;
1156 /* We set the bit if the host supports voltages between 2.7 and 3.6 V */
1157 cmd.cmdarg = ((mmc->voltages & 0xff8000) != 0) << 8 | 0xaa;
1158 cmd.resp_type = MMC_RSP_R7;
1159
1160 err = mmc_send_cmd(mmc, &cmd, NULL);
1161
1162 if (err)
1163 return err;
1164
1165 if ((cmd.response[0] & 0xff) != 0xaa)
1166 return UNUSABLE_ERR;
1167 else
1168 mmc->version = SD_VERSION_2;
1169
1170 return 0;
1171 }
1172
1173 int mmc_register(struct mmc *mmc)
1174 {
1175 /* Setup dsr related values */
1176 mmc->dsr_imp = 0;
1177 mmc->dsr = 0xffffffff;
1178 /* Setup the universal parts of the block interface just once */
1179 mmc->block_dev.if_type = IF_TYPE_MMC;
1180 mmc->block_dev.dev = cur_dev_num++;
1181 mmc->block_dev.removable = 1;
1182 mmc->block_dev.block_read = mmc_bread;
1183 mmc->block_dev.block_write = mmc_bwrite;
1184 mmc->block_dev.block_erase = mmc_berase;
1185 if (!mmc->b_max)
1186 mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
1187
1188 INIT_LIST_HEAD (&mmc->link);
1189
1190 list_add_tail (&mmc->link, &mmc_devices);
1191
1192 return 0;
1193 }
1194
1195 #ifdef CONFIG_PARTITIONS
1196 block_dev_desc_t *mmc_get_dev(int dev)
1197 {
1198 struct mmc *mmc = find_mmc_device(dev);
1199 if (!mmc || mmc_init(mmc))
1200 return NULL;
1201
1202 return &mmc->block_dev;
1203 }
1204 #endif
1205
1206 int mmc_start_init(struct mmc *mmc)
1207 {
1208 int err;
1209
1210 if (mmc_getcd(mmc) == 0) {
1211 mmc->has_init = 0;
1212 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1213 printf("MMC: no card present\n");
1214 #endif
1215 return NO_CARD_ERR;
1216 }
1217
1218 if (mmc->has_init)
1219 return 0;
1220
1221 err = mmc->init(mmc);
1222
1223 if (err)
1224 return err;
1225
1226 mmc_set_bus_width(mmc, 1);
1227 mmc_set_clock(mmc, 1);
1228
1229 /* Reset the Card */
1230 err = mmc_go_idle(mmc);
1231
1232 if (err)
1233 return err;
1234
1235 /* The internal partition reset to user partition(0) at every CMD0*/
1236 mmc->part_num = 0;
1237
1238 /* Test for SD version 2 */
1239 err = mmc_send_if_cond(mmc);
1240
1241 /* Now try to get the SD card's operating condition */
1242 err = sd_send_op_cond(mmc);
1243
1244 /* If the command timed out, we check for an MMC card */
1245 if (err == TIMEOUT) {
1246 err = mmc_send_op_cond(mmc);
1247
1248 if (err && err != IN_PROGRESS) {
1249 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1250 printf("Card did not respond to voltage select!\n");
1251 #endif
1252 return UNUSABLE_ERR;
1253 }
1254 }
1255
1256 if (err == IN_PROGRESS)
1257 mmc->init_in_progress = 1;
1258
1259 return err;
1260 }
1261
1262 static int mmc_complete_init(struct mmc *mmc)
1263 {
1264 int err = 0;
1265
1266 if (mmc->op_cond_pending)
1267 err = mmc_complete_op_cond(mmc);
1268
1269 if (!err)
1270 err = mmc_startup(mmc);
1271 if (err)
1272 mmc->has_init = 0;
1273 else
1274 mmc->has_init = 1;
1275 mmc->init_in_progress = 0;
1276 return err;
1277 }
1278
1279 int mmc_init(struct mmc *mmc)
1280 {
1281 int err = IN_PROGRESS;
1282 unsigned start = get_timer(0);
1283
1284 if (mmc->has_init)
1285 return 0;
1286 if (!mmc->init_in_progress)
1287 err = mmc_start_init(mmc);
1288
1289 if (!err || err == IN_PROGRESS)
1290 err = mmc_complete_init(mmc);
1291 debug("%s: %d, time %lu\n", __func__, err, get_timer(start));
1292 return err;
1293 }
1294
1295 int mmc_set_dsr(struct mmc *mmc, u16 val)
1296 {
1297 mmc->dsr = val;
1298 return 0;
1299 }
1300
1301 /*
1302 * CPU and board-specific MMC initializations. Aliased function
1303 * signals caller to move on
1304 */
1305 static int __def_mmc_init(bd_t *bis)
1306 {
1307 return -1;
1308 }
1309
1310 int cpu_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));
1311 int board_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));
1312
1313 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1314
1315 void print_mmc_devices(char separator)
1316 {
1317 struct mmc *m;
1318 struct list_head *entry;
1319
1320 list_for_each(entry, &mmc_devices) {
1321 m = list_entry(entry, struct mmc, link);
1322
1323 printf("%s: %d", m->name, m->block_dev.dev);
1324
1325 if (entry->next != &mmc_devices)
1326 printf("%c ", separator);
1327 }
1328
1329 printf("\n");
1330 }
1331
1332 #else
1333 void print_mmc_devices(char separator) { }
1334 #endif
1335
1336 int get_mmc_num(void)
1337 {
1338 return cur_dev_num;
1339 }
1340
1341 void mmc_set_preinit(struct mmc *mmc, int preinit)
1342 {
1343 mmc->preinit = preinit;
1344 }
1345
1346 static void do_preinit(void)
1347 {
1348 struct mmc *m;
1349 struct list_head *entry;
1350
1351 list_for_each(entry, &mmc_devices) {
1352 m = list_entry(entry, struct mmc, link);
1353
1354 if (m->preinit)
1355 mmc_start_init(m);
1356 }
1357 }
1358
1359
1360 int mmc_initialize(bd_t *bis)
1361 {
1362 INIT_LIST_HEAD (&mmc_devices);
1363 cur_dev_num = 0;
1364
1365 if (board_mmc_init(bis) < 0)
1366 cpu_mmc_init(bis);
1367
1368 #ifndef CONFIG_SPL_BUILD
1369 print_mmc_devices(',');
1370 #endif
1371
1372 do_preinit();
1373 return 0;
1374 }
1375
1376 #ifdef CONFIG_SUPPORT_EMMC_BOOT
1377 /*
1378 * This function changes the size of boot partition and the size of rpmb
1379 * partition present on EMMC devices.
1380 *
1381 * Input Parameters:
1382 * struct *mmc: pointer for the mmc device strcuture
1383 * bootsize: size of boot partition
1384 * rpmbsize: size of rpmb partition
1385 *
1386 * Returns 0 on success.
1387 */
1388
1389 int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
1390 unsigned long rpmbsize)
1391 {
1392 int err;
1393 struct mmc_cmd cmd;
1394
1395 /* Only use this command for raw EMMC moviNAND. Enter backdoor mode */
1396 cmd.cmdidx = MMC_CMD_RES_MAN;
1397 cmd.resp_type = MMC_RSP_R1b;
1398 cmd.cmdarg = MMC_CMD62_ARG1;
1399
1400 err = mmc_send_cmd(mmc, &cmd, NULL);
1401 if (err) {
1402 debug("mmc_boot_partition_size_change: Error1 = %d\n", err);
1403 return err;
1404 }
1405
1406 /* Boot partition changing mode */
1407 cmd.cmdidx = MMC_CMD_RES_MAN;
1408 cmd.resp_type = MMC_RSP_R1b;
1409 cmd.cmdarg = MMC_CMD62_ARG2;
1410
1411 err = mmc_send_cmd(mmc, &cmd, NULL);
1412 if (err) {
1413 debug("mmc_boot_partition_size_change: Error2 = %d\n", err);
1414 return err;
1415 }
1416 /* boot partition size is multiple of 128KB */
1417 bootsize = (bootsize * 1024) / 128;
1418
1419 /* Arg: boot partition size */
1420 cmd.cmdidx = MMC_CMD_RES_MAN;
1421 cmd.resp_type = MMC_RSP_R1b;
1422 cmd.cmdarg = bootsize;
1423
1424 err = mmc_send_cmd(mmc, &cmd, NULL);
1425 if (err) {
1426 debug("mmc_boot_partition_size_change: Error3 = %d\n", err);
1427 return err;
1428 }
1429 /* RPMB partition size is multiple of 128KB */
1430 rpmbsize = (rpmbsize * 1024) / 128;
1431 /* Arg: RPMB partition size */
1432 cmd.cmdidx = MMC_CMD_RES_MAN;
1433 cmd.resp_type = MMC_RSP_R1b;
1434 cmd.cmdarg = rpmbsize;
1435
1436 err = mmc_send_cmd(mmc, &cmd, NULL);
1437 if (err) {
1438 debug("mmc_boot_partition_size_change: Error4 = %d\n", err);
1439 return err;
1440 }
1441 return 0;
1442 }
1443
1444 /*
1445 * This function shall form and send the commands to open / close the
1446 * boot partition specified by user.
1447 *
1448 * Input Parameters:
1449 * ack: 0x0 - No boot acknowledge sent (default)
1450 * 0x1 - Boot acknowledge sent during boot operation
1451 * part_num: User selects boot data that will be sent to master
1452 * 0x0 - Device not boot enabled (default)
1453 * 0x1 - Boot partition 1 enabled for boot
1454 * 0x2 - Boot partition 2 enabled for boot
1455 * access: User selects partitions to access
1456 * 0x0 : No access to boot partition (default)
1457 * 0x1 : R/W boot partition 1
1458 * 0x2 : R/W boot partition 2
1459 * 0x3 : R/W Replay Protected Memory Block (RPMB)
1460 *
1461 * Returns 0 on success.
1462 */
1463 int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
1464 {
1465 int err;
1466 struct mmc_cmd cmd;
1467
1468 /* Boot ack enable, boot partition enable , boot partition access */
1469 cmd.cmdidx = MMC_CMD_SWITCH;
1470 cmd.resp_type = MMC_RSP_R1b;
1471
1472 cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
1473 (EXT_CSD_PART_CONF << 16) |
1474 ((EXT_CSD_BOOT_ACK(ack) |
1475 EXT_CSD_BOOT_PART_NUM(part_num) |
1476 EXT_CSD_PARTITION_ACCESS(access)) << 8);
1477
1478 err = mmc_send_cmd(mmc, &cmd, NULL);
1479 if (err) {
1480 if (access) {
1481 debug("mmc boot partition#%d open fail:Error1 = %d\n",
1482 part_num, err);
1483 } else {
1484 debug("mmc boot partition#%d close fail:Error = %d\n",
1485 part_num, err);
1486 }
1487 return err;
1488 }
1489
1490 if (access) {
1491 /* 4bit transfer mode at booting time. */
1492 cmd.cmdidx = MMC_CMD_SWITCH;
1493 cmd.resp_type = MMC_RSP_R1b;
1494
1495 cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
1496 (EXT_CSD_BOOT_BUS_WIDTH << 16) |
1497 ((1 << 0) << 8);
1498
1499 err = mmc_send_cmd(mmc, &cmd, NULL);
1500 if (err) {
1501 debug("mmc boot partition#%d open fail:Error2 = %d\n",
1502 part_num, err);
1503 return err;
1504 }
1505 }
1506 return 0;
1507 }
1508 #endif
"Das U-Boot" Source Tree