xref: /openbmc/u-boot/cmd/mmc.c (revision c0fb2fc0)
1 /*
2  * (C) Copyright 2003
3  * Kyle Harris, kharris@nexus-tech.net
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <command.h>
10 #include <console.h>
11 #include <mmc.h>
12 
13 static int curr_device = -1;
14 
15 static void print_mmcinfo(struct mmc *mmc)
16 {
17 	int i;
18 
19 	printf("Device: %s\n", mmc->cfg->name);
20 	printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
21 	printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
22 	printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
23 			(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
24 			(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
25 
26 	printf("Bus Speed: %d\n", mmc->clock);
27 #if CONFIG_IS_ENABLED(MMC_VERBOSE)
28 	printf("Mode : %s\n", mmc_mode_name(mmc->selected_mode));
29 	mmc_dump_capabilities("card capabilities", mmc->card_caps);
30 	mmc_dump_capabilities("host capabilities", mmc->host_caps);
31 #endif
32 	printf("Rd Block Len: %d\n", mmc->read_bl_len);
33 
34 	printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC",
35 			EXTRACT_SDMMC_MAJOR_VERSION(mmc->version),
36 			EXTRACT_SDMMC_MINOR_VERSION(mmc->version));
37 	if (EXTRACT_SDMMC_CHANGE_VERSION(mmc->version) != 0)
38 		printf(".%d", EXTRACT_SDMMC_CHANGE_VERSION(mmc->version));
39 	printf("\n");
40 
41 	printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
42 	puts("Capacity: ");
43 	print_size(mmc->capacity, "\n");
44 
45 	printf("Bus Width: %d-bit%s\n", mmc->bus_width,
46 			mmc->ddr_mode ? " DDR" : "");
47 
48 #if CONFIG_IS_ENABLED(MMC_WRITE)
49 	puts("Erase Group Size: ");
50 	print_size(((u64)mmc->erase_grp_size) << 9, "\n");
51 #endif
52 
53 	if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
54 		bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
55 		bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
56 
57 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
58 		puts("HC WP Group Size: ");
59 		print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
60 #endif
61 
62 		puts("User Capacity: ");
63 		print_size(mmc->capacity_user, usr_enh ? " ENH" : "");
64 		if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_USR)
65 			puts(" WRREL\n");
66 		else
67 			putc('\n');
68 		if (usr_enh) {
69 			puts("User Enhanced Start: ");
70 			print_size(mmc->enh_user_start, "\n");
71 			puts("User Enhanced Size: ");
72 			print_size(mmc->enh_user_size, "\n");
73 		}
74 		puts("Boot Capacity: ");
75 		print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
76 		puts("RPMB Capacity: ");
77 		print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
78 
79 		for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
80 			bool is_enh = has_enh &&
81 				(mmc->part_attr & EXT_CSD_ENH_GP(i));
82 			if (mmc->capacity_gp[i]) {
83 				printf("GP%i Capacity: ", i+1);
84 				print_size(mmc->capacity_gp[i],
85 					   is_enh ? " ENH" : "");
86 				if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_GP(i))
87 					puts(" WRREL\n");
88 				else
89 					putc('\n');
90 			}
91 		}
92 	}
93 }
94 static struct mmc *init_mmc_device(int dev, bool force_init)
95 {
96 	struct mmc *mmc;
97 	mmc = find_mmc_device(dev);
98 	if (!mmc) {
99 		printf("no mmc device at slot %x\n", dev);
100 		return NULL;
101 	}
102 
103 	if (force_init)
104 		mmc->has_init = 0;
105 	if (mmc_init(mmc))
106 		return NULL;
107 	return mmc;
108 }
109 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
110 {
111 	struct mmc *mmc;
112 
113 	if (curr_device < 0) {
114 		if (get_mmc_num() > 0)
115 			curr_device = 0;
116 		else {
117 			puts("No MMC device available\n");
118 			return 1;
119 		}
120 	}
121 
122 	mmc = init_mmc_device(curr_device, false);
123 	if (!mmc)
124 		return CMD_RET_FAILURE;
125 
126 	print_mmcinfo(mmc);
127 	return CMD_RET_SUCCESS;
128 }
129 
130 #ifdef CONFIG_SUPPORT_EMMC_RPMB
131 static int confirm_key_prog(void)
132 {
133 	puts("Warning: Programming authentication key can be done only once !\n"
134 	     "         Use this command only if you are sure of what you are doing,\n"
135 	     "Really perform the key programming? <y/N> ");
136 	if (confirm_yesno())
137 		return 1;
138 
139 	puts("Authentication key programming aborted\n");
140 	return 0;
141 }
142 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
143 			  int argc, char * const argv[])
144 {
145 	void *key_addr;
146 	struct mmc *mmc = find_mmc_device(curr_device);
147 
148 	if (argc != 2)
149 		return CMD_RET_USAGE;
150 
151 	key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
152 	if (!confirm_key_prog())
153 		return CMD_RET_FAILURE;
154 	if (mmc_rpmb_set_key(mmc, key_addr)) {
155 		printf("ERROR - Key already programmed ?\n");
156 		return CMD_RET_FAILURE;
157 	}
158 	return CMD_RET_SUCCESS;
159 }
160 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
161 			   int argc, char * const argv[])
162 {
163 	u16 blk, cnt;
164 	void *addr;
165 	int n;
166 	void *key_addr = NULL;
167 	struct mmc *mmc = find_mmc_device(curr_device);
168 
169 	if (argc < 4)
170 		return CMD_RET_USAGE;
171 
172 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
173 	blk = simple_strtoul(argv[2], NULL, 16);
174 	cnt = simple_strtoul(argv[3], NULL, 16);
175 
176 	if (argc == 5)
177 		key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
178 
179 	printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
180 	       curr_device, blk, cnt);
181 	n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
182 
183 	printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
184 	if (n != cnt)
185 		return CMD_RET_FAILURE;
186 	return CMD_RET_SUCCESS;
187 }
188 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
189 			    int argc, char * const argv[])
190 {
191 	u16 blk, cnt;
192 	void *addr;
193 	int n;
194 	void *key_addr;
195 	struct mmc *mmc = find_mmc_device(curr_device);
196 
197 	if (argc != 5)
198 		return CMD_RET_USAGE;
199 
200 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
201 	blk = simple_strtoul(argv[2], NULL, 16);
202 	cnt = simple_strtoul(argv[3], NULL, 16);
203 	key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
204 
205 	printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
206 	       curr_device, blk, cnt);
207 	n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
208 
209 	printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
210 	if (n != cnt)
211 		return CMD_RET_FAILURE;
212 	return CMD_RET_SUCCESS;
213 }
214 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
215 			      int argc, char * const argv[])
216 {
217 	unsigned long counter;
218 	struct mmc *mmc = find_mmc_device(curr_device);
219 
220 	if (mmc_rpmb_get_counter(mmc, &counter))
221 		return CMD_RET_FAILURE;
222 	printf("RPMB Write counter= %lx\n", counter);
223 	return CMD_RET_SUCCESS;
224 }
225 
226 static cmd_tbl_t cmd_rpmb[] = {
227 	U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
228 	U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
229 	U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
230 	U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
231 };
232 
233 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
234 		      int argc, char * const argv[])
235 {
236 	cmd_tbl_t *cp;
237 	struct mmc *mmc;
238 	char original_part;
239 	int ret;
240 
241 	cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
242 
243 	/* Drop the rpmb subcommand */
244 	argc--;
245 	argv++;
246 
247 	if (cp == NULL || argc > cp->maxargs)
248 		return CMD_RET_USAGE;
249 	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
250 		return CMD_RET_SUCCESS;
251 
252 	mmc = init_mmc_device(curr_device, false);
253 	if (!mmc)
254 		return CMD_RET_FAILURE;
255 
256 	if (!(mmc->version & MMC_VERSION_MMC)) {
257 		printf("It is not a EMMC device\n");
258 		return CMD_RET_FAILURE;
259 	}
260 	if (mmc->version < MMC_VERSION_4_41) {
261 		printf("RPMB not supported before version 4.41\n");
262 		return CMD_RET_FAILURE;
263 	}
264 	/* Switch to the RPMB partition */
265 #ifndef CONFIG_BLK
266 	original_part = mmc->block_dev.hwpart;
267 #else
268 	original_part = mmc_get_blk_desc(mmc)->hwpart;
269 #endif
270 	if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, MMC_PART_RPMB) !=
271 	    0)
272 		return CMD_RET_FAILURE;
273 	ret = cp->cmd(cmdtp, flag, argc, argv);
274 
275 	/* Return to original partition */
276 	if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, original_part) !=
277 	    0)
278 		return CMD_RET_FAILURE;
279 	return ret;
280 }
281 #endif
282 
283 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
284 		       int argc, char * const argv[])
285 {
286 	struct mmc *mmc;
287 	u32 blk, cnt, n;
288 	void *addr;
289 
290 	if (argc != 4)
291 		return CMD_RET_USAGE;
292 
293 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
294 	blk = simple_strtoul(argv[2], NULL, 16);
295 	cnt = simple_strtoul(argv[3], NULL, 16);
296 
297 	mmc = init_mmc_device(curr_device, false);
298 	if (!mmc)
299 		return CMD_RET_FAILURE;
300 
301 	printf("\nMMC read: dev # %d, block # %d, count %d ... ",
302 	       curr_device, blk, cnt);
303 
304 	n = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, addr);
305 	printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
306 
307 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
308 }
309 
310 #if CONFIG_IS_ENABLED(MMC_WRITE)
311 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
312 			int argc, char * const argv[])
313 {
314 	struct mmc *mmc;
315 	u32 blk, cnt, n;
316 	void *addr;
317 
318 	if (argc != 4)
319 		return CMD_RET_USAGE;
320 
321 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
322 	blk = simple_strtoul(argv[2], NULL, 16);
323 	cnt = simple_strtoul(argv[3], NULL, 16);
324 
325 	mmc = init_mmc_device(curr_device, false);
326 	if (!mmc)
327 		return CMD_RET_FAILURE;
328 
329 	printf("\nMMC write: dev # %d, block # %d, count %d ... ",
330 	       curr_device, blk, cnt);
331 
332 	if (mmc_getwp(mmc) == 1) {
333 		printf("Error: card is write protected!\n");
334 		return CMD_RET_FAILURE;
335 	}
336 	n = blk_dwrite(mmc_get_blk_desc(mmc), blk, cnt, addr);
337 	printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
338 
339 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
340 }
341 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
342 			int argc, char * const argv[])
343 {
344 	struct mmc *mmc;
345 	u32 blk, cnt, n;
346 
347 	if (argc != 3)
348 		return CMD_RET_USAGE;
349 
350 	blk = simple_strtoul(argv[1], NULL, 16);
351 	cnt = simple_strtoul(argv[2], NULL, 16);
352 
353 	mmc = init_mmc_device(curr_device, false);
354 	if (!mmc)
355 		return CMD_RET_FAILURE;
356 
357 	printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
358 	       curr_device, blk, cnt);
359 
360 	if (mmc_getwp(mmc) == 1) {
361 		printf("Error: card is write protected!\n");
362 		return CMD_RET_FAILURE;
363 	}
364 	n = blk_derase(mmc_get_blk_desc(mmc), blk, cnt);
365 	printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
366 
367 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
368 }
369 #endif
370 
371 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
372 			 int argc, char * const argv[])
373 {
374 	struct mmc *mmc;
375 
376 	mmc = init_mmc_device(curr_device, true);
377 	if (!mmc)
378 		return CMD_RET_FAILURE;
379 
380 	return CMD_RET_SUCCESS;
381 }
382 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
383 		       int argc, char * const argv[])
384 {
385 	struct blk_desc *mmc_dev;
386 	struct mmc *mmc;
387 
388 	mmc = init_mmc_device(curr_device, false);
389 	if (!mmc)
390 		return CMD_RET_FAILURE;
391 
392 	mmc_dev = blk_get_devnum_by_type(IF_TYPE_MMC, curr_device);
393 	if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
394 		part_print(mmc_dev);
395 		return CMD_RET_SUCCESS;
396 	}
397 
398 	puts("get mmc type error!\n");
399 	return CMD_RET_FAILURE;
400 }
401 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
402 		      int argc, char * const argv[])
403 {
404 	int dev, part = 0, ret;
405 	struct mmc *mmc;
406 
407 	if (argc == 1) {
408 		dev = curr_device;
409 	} else if (argc == 2) {
410 		dev = simple_strtoul(argv[1], NULL, 10);
411 	} else if (argc == 3) {
412 		dev = (int)simple_strtoul(argv[1], NULL, 10);
413 		part = (int)simple_strtoul(argv[2], NULL, 10);
414 		if (part > PART_ACCESS_MASK) {
415 			printf("#part_num shouldn't be larger than %d\n",
416 			       PART_ACCESS_MASK);
417 			return CMD_RET_FAILURE;
418 		}
419 	} else {
420 		return CMD_RET_USAGE;
421 	}
422 
423 	mmc = init_mmc_device(dev, true);
424 	if (!mmc)
425 		return CMD_RET_FAILURE;
426 
427 	ret = blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part);
428 	printf("switch to partitions #%d, %s\n",
429 	       part, (!ret) ? "OK" : "ERROR");
430 	if (ret)
431 		return 1;
432 
433 	curr_device = dev;
434 	if (mmc->part_config == MMCPART_NOAVAILABLE)
435 		printf("mmc%d is current device\n", curr_device);
436 	else
437 		printf("mmc%d(part %d) is current device\n",
438 		       curr_device, mmc_get_blk_desc(mmc)->hwpart);
439 
440 	return CMD_RET_SUCCESS;
441 }
442 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
443 		       int argc, char * const argv[])
444 {
445 	print_mmc_devices('\n');
446 	return CMD_RET_SUCCESS;
447 }
448 
449 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
450 static int parse_hwpart_user(struct mmc_hwpart_conf *pconf,
451 			     int argc, char * const argv[])
452 {
453 	int i = 0;
454 
455 	memset(&pconf->user, 0, sizeof(pconf->user));
456 
457 	while (i < argc) {
458 		if (!strcmp(argv[i], "enh")) {
459 			if (i + 2 >= argc)
460 				return -1;
461 			pconf->user.enh_start =
462 				simple_strtoul(argv[i+1], NULL, 10);
463 			pconf->user.enh_size =
464 				simple_strtoul(argv[i+2], NULL, 10);
465 			i += 3;
466 		} else if (!strcmp(argv[i], "wrrel")) {
467 			if (i + 1 >= argc)
468 				return -1;
469 			pconf->user.wr_rel_change = 1;
470 			if (!strcmp(argv[i+1], "on"))
471 				pconf->user.wr_rel_set = 1;
472 			else if (!strcmp(argv[i+1], "off"))
473 				pconf->user.wr_rel_set = 0;
474 			else
475 				return -1;
476 			i += 2;
477 		} else {
478 			break;
479 		}
480 	}
481 	return i;
482 }
483 
484 static int parse_hwpart_gp(struct mmc_hwpart_conf *pconf, int pidx,
485 			   int argc, char * const argv[])
486 {
487 	int i;
488 
489 	memset(&pconf->gp_part[pidx], 0, sizeof(pconf->gp_part[pidx]));
490 
491 	if (1 >= argc)
492 		return -1;
493 	pconf->gp_part[pidx].size = simple_strtoul(argv[0], NULL, 10);
494 
495 	i = 1;
496 	while (i < argc) {
497 		if (!strcmp(argv[i], "enh")) {
498 			pconf->gp_part[pidx].enhanced = 1;
499 			i += 1;
500 		} else if (!strcmp(argv[i], "wrrel")) {
501 			if (i + 1 >= argc)
502 				return -1;
503 			pconf->gp_part[pidx].wr_rel_change = 1;
504 			if (!strcmp(argv[i+1], "on"))
505 				pconf->gp_part[pidx].wr_rel_set = 1;
506 			else if (!strcmp(argv[i+1], "off"))
507 				pconf->gp_part[pidx].wr_rel_set = 0;
508 			else
509 				return -1;
510 			i += 2;
511 		} else {
512 			break;
513 		}
514 	}
515 	return i;
516 }
517 
518 static int do_mmc_hwpartition(cmd_tbl_t *cmdtp, int flag,
519 			      int argc, char * const argv[])
520 {
521 	struct mmc *mmc;
522 	struct mmc_hwpart_conf pconf = { };
523 	enum mmc_hwpart_conf_mode mode = MMC_HWPART_CONF_CHECK;
524 	int i, r, pidx;
525 
526 	mmc = init_mmc_device(curr_device, false);
527 	if (!mmc)
528 		return CMD_RET_FAILURE;
529 
530 	if (argc < 1)
531 		return CMD_RET_USAGE;
532 	i = 1;
533 	while (i < argc) {
534 		if (!strcmp(argv[i], "user")) {
535 			i++;
536 			r = parse_hwpart_user(&pconf, argc-i, &argv[i]);
537 			if (r < 0)
538 				return CMD_RET_USAGE;
539 			i += r;
540 		} else if (!strncmp(argv[i], "gp", 2) &&
541 			   strlen(argv[i]) == 3 &&
542 			   argv[i][2] >= '1' && argv[i][2] <= '4') {
543 			pidx = argv[i][2] - '1';
544 			i++;
545 			r = parse_hwpart_gp(&pconf, pidx, argc-i, &argv[i]);
546 			if (r < 0)
547 				return CMD_RET_USAGE;
548 			i += r;
549 		} else if (!strcmp(argv[i], "check")) {
550 			mode = MMC_HWPART_CONF_CHECK;
551 			i++;
552 		} else if (!strcmp(argv[i], "set")) {
553 			mode = MMC_HWPART_CONF_SET;
554 			i++;
555 		} else if (!strcmp(argv[i], "complete")) {
556 			mode = MMC_HWPART_CONF_COMPLETE;
557 			i++;
558 		} else {
559 			return CMD_RET_USAGE;
560 		}
561 	}
562 
563 	puts("Partition configuration:\n");
564 	if (pconf.user.enh_size) {
565 		puts("\tUser Enhanced Start: ");
566 		print_size(((u64)pconf.user.enh_start) << 9, "\n");
567 		puts("\tUser Enhanced Size: ");
568 		print_size(((u64)pconf.user.enh_size) << 9, "\n");
569 	} else {
570 		puts("\tNo enhanced user data area\n");
571 	}
572 	if (pconf.user.wr_rel_change)
573 		printf("\tUser partition write reliability: %s\n",
574 		       pconf.user.wr_rel_set ? "on" : "off");
575 	for (pidx = 0; pidx < 4; pidx++) {
576 		if (pconf.gp_part[pidx].size) {
577 			printf("\tGP%i Capacity: ", pidx+1);
578 			print_size(((u64)pconf.gp_part[pidx].size) << 9,
579 				   pconf.gp_part[pidx].enhanced ?
580 				   " ENH\n" : "\n");
581 		} else {
582 			printf("\tNo GP%i partition\n", pidx+1);
583 		}
584 		if (pconf.gp_part[pidx].wr_rel_change)
585 			printf("\tGP%i write reliability: %s\n", pidx+1,
586 			       pconf.gp_part[pidx].wr_rel_set ? "on" : "off");
587 	}
588 
589 	if (!mmc_hwpart_config(mmc, &pconf, mode)) {
590 		if (mode == MMC_HWPART_CONF_COMPLETE)
591 			puts("Partitioning successful, "
592 			     "power-cycle to make effective\n");
593 		return CMD_RET_SUCCESS;
594 	} else {
595 		puts("Failed!\n");
596 		return CMD_RET_FAILURE;
597 	}
598 }
599 #endif
600 
601 #ifdef CONFIG_SUPPORT_EMMC_BOOT
602 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
603 			  int argc, char * const argv[])
604 {
605 	int dev;
606 	struct mmc *mmc;
607 	u8 width, reset, mode;
608 
609 	if (argc != 5)
610 		return CMD_RET_USAGE;
611 	dev = simple_strtoul(argv[1], NULL, 10);
612 	width = simple_strtoul(argv[2], NULL, 10);
613 	reset = simple_strtoul(argv[3], NULL, 10);
614 	mode = simple_strtoul(argv[4], NULL, 10);
615 
616 	mmc = init_mmc_device(dev, false);
617 	if (!mmc)
618 		return CMD_RET_FAILURE;
619 
620 	if (IS_SD(mmc)) {
621 		puts("BOOT_BUS_WIDTH only exists on eMMC\n");
622 		return CMD_RET_FAILURE;
623 	}
624 
625 	/* acknowledge to be sent during boot operation */
626 	return mmc_set_boot_bus_width(mmc, width, reset, mode);
627 }
628 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
629 			      int argc, char * const argv[])
630 {
631 	int dev;
632 	struct mmc *mmc;
633 	u32 bootsize, rpmbsize;
634 
635 	if (argc != 4)
636 		return CMD_RET_USAGE;
637 	dev = simple_strtoul(argv[1], NULL, 10);
638 	bootsize = simple_strtoul(argv[2], NULL, 10);
639 	rpmbsize = simple_strtoul(argv[3], NULL, 10);
640 
641 	mmc = init_mmc_device(dev, false);
642 	if (!mmc)
643 		return CMD_RET_FAILURE;
644 
645 	if (IS_SD(mmc)) {
646 		printf("It is not a EMMC device\n");
647 		return CMD_RET_FAILURE;
648 	}
649 
650 	if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
651 		printf("EMMC boot partition Size change Failed.\n");
652 		return CMD_RET_FAILURE;
653 	}
654 
655 	printf("EMMC boot partition Size %d MB\n", bootsize);
656 	printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
657 	return CMD_RET_SUCCESS;
658 }
659 
660 static int mmc_partconf_print(struct mmc *mmc)
661 {
662 	u8 ack, access, part;
663 
664 	if (mmc->part_config == MMCPART_NOAVAILABLE) {
665 		printf("No part_config info for ver. 0x%x\n", mmc->version);
666 		return CMD_RET_FAILURE;
667 	}
668 
669 	access = EXT_CSD_EXTRACT_PARTITION_ACCESS(mmc->part_config);
670 	ack = EXT_CSD_EXTRACT_BOOT_ACK(mmc->part_config);
671 	part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
672 
673 	printf("EXT_CSD[179], PARTITION_CONFIG:\n"
674 		"BOOT_ACK: 0x%x\n"
675 		"BOOT_PARTITION_ENABLE: 0x%x\n"
676 		"PARTITION_ACCESS: 0x%x\n", ack, part, access);
677 
678 	return CMD_RET_SUCCESS;
679 }
680 
681 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
682 			   int argc, char * const argv[])
683 {
684 	int dev;
685 	struct mmc *mmc;
686 	u8 ack, part_num, access;
687 
688 	if (argc != 2 && argc != 5)
689 		return CMD_RET_USAGE;
690 
691 	dev = simple_strtoul(argv[1], NULL, 10);
692 
693 	mmc = init_mmc_device(dev, false);
694 	if (!mmc)
695 		return CMD_RET_FAILURE;
696 
697 	if (IS_SD(mmc)) {
698 		puts("PARTITION_CONFIG only exists on eMMC\n");
699 		return CMD_RET_FAILURE;
700 	}
701 
702 	if (argc == 2)
703 		return mmc_partconf_print(mmc);
704 
705 	ack = simple_strtoul(argv[2], NULL, 10);
706 	part_num = simple_strtoul(argv[3], NULL, 10);
707 	access = simple_strtoul(argv[4], NULL, 10);
708 
709 	/* acknowledge to be sent during boot operation */
710 	return mmc_set_part_conf(mmc, ack, part_num, access);
711 }
712 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
713 			   int argc, char * const argv[])
714 {
715 	int dev;
716 	struct mmc *mmc;
717 	u8 enable;
718 
719 	/*
720 	 * Set the RST_n_ENABLE bit of RST_n_FUNCTION
721 	 * The only valid values are 0x0, 0x1 and 0x2 and writing
722 	 * a value of 0x1 or 0x2 sets the value permanently.
723 	 */
724 	if (argc != 3)
725 		return CMD_RET_USAGE;
726 
727 	dev = simple_strtoul(argv[1], NULL, 10);
728 	enable = simple_strtoul(argv[2], NULL, 10);
729 
730 	if (enable > 2) {
731 		puts("Invalid RST_n_ENABLE value\n");
732 		return CMD_RET_USAGE;
733 	}
734 
735 	mmc = init_mmc_device(dev, false);
736 	if (!mmc)
737 		return CMD_RET_FAILURE;
738 
739 	if (IS_SD(mmc)) {
740 		puts("RST_n_FUNCTION only exists on eMMC\n");
741 		return CMD_RET_FAILURE;
742 	}
743 
744 	return mmc_set_rst_n_function(mmc, enable);
745 }
746 #endif
747 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
748 			 int argc, char * const argv[])
749 {
750 	struct mmc *mmc;
751 	u32 val;
752 	int ret;
753 
754 	if (argc != 2)
755 		return CMD_RET_USAGE;
756 	val = simple_strtoul(argv[1], NULL, 16);
757 
758 	mmc = find_mmc_device(curr_device);
759 	if (!mmc) {
760 		printf("no mmc device at slot %x\n", curr_device);
761 		return CMD_RET_FAILURE;
762 	}
763 	ret = mmc_set_dsr(mmc, val);
764 	printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
765 	if (!ret) {
766 		mmc->has_init = 0;
767 		if (mmc_init(mmc))
768 			return CMD_RET_FAILURE;
769 		else
770 			return CMD_RET_SUCCESS;
771 	}
772 	return ret;
773 }
774 
775 #ifdef CONFIG_CMD_BKOPS_ENABLE
776 static int do_mmc_bkops_enable(cmd_tbl_t *cmdtp, int flag,
777 				   int argc, char * const argv[])
778 {
779 	int dev;
780 	struct mmc *mmc;
781 
782 	if (argc != 2)
783 		return CMD_RET_USAGE;
784 
785 	dev = simple_strtoul(argv[1], NULL, 10);
786 
787 	mmc = init_mmc_device(dev, false);
788 	if (!mmc)
789 		return CMD_RET_FAILURE;
790 
791 	if (IS_SD(mmc)) {
792 		puts("BKOPS_EN only exists on eMMC\n");
793 		return CMD_RET_FAILURE;
794 	}
795 
796 	return mmc_set_bkops_enable(mmc);
797 }
798 #endif
799 
800 static cmd_tbl_t cmd_mmc[] = {
801 	U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
802 	U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
803 #if CONFIG_IS_ENABLED(MMC_WRITE)
804 	U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
805 	U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
806 #endif
807 	U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
808 	U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
809 	U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
810 	U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
811 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
812 	U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
813 #endif
814 #ifdef CONFIG_SUPPORT_EMMC_BOOT
815 	U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
816 	U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
817 	U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
818 	U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
819 #endif
820 #ifdef CONFIG_SUPPORT_EMMC_RPMB
821 	U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
822 #endif
823 	U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
824 #ifdef CONFIG_CMD_BKOPS_ENABLE
825 	U_BOOT_CMD_MKENT(bkops-enable, 2, 0, do_mmc_bkops_enable, "", ""),
826 #endif
827 };
828 
829 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
830 {
831 	cmd_tbl_t *cp;
832 
833 	cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
834 
835 	/* Drop the mmc command */
836 	argc--;
837 	argv++;
838 
839 	if (cp == NULL || argc > cp->maxargs)
840 		return CMD_RET_USAGE;
841 	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
842 		return CMD_RET_SUCCESS;
843 
844 	if (curr_device < 0) {
845 		if (get_mmc_num() > 0) {
846 			curr_device = 0;
847 		} else {
848 			puts("No MMC device available\n");
849 			return CMD_RET_FAILURE;
850 		}
851 	}
852 	return cp->cmd(cmdtp, flag, argc, argv);
853 }
854 
855 U_BOOT_CMD(
856 	mmc, 29, 1, do_mmcops,
857 	"MMC sub system",
858 	"info - display info of the current MMC device\n"
859 	"mmc read addr blk# cnt\n"
860 	"mmc write addr blk# cnt\n"
861 	"mmc erase blk# cnt\n"
862 	"mmc rescan\n"
863 	"mmc part - lists available partition on current mmc device\n"
864 	"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
865 	"mmc list - lists available devices\n"
866 	"mmc hwpartition [args...] - does hardware partitioning\n"
867 	"  arguments (sizes in 512-byte blocks):\n"
868 	"    [user [enh start cnt] [wrrel {on|off}]] - sets user data area attributes\n"
869 	"    [gp1|gp2|gp3|gp4 cnt [enh] [wrrel {on|off}]] - general purpose partition\n"
870 	"    [check|set|complete] - mode, complete set partitioning completed\n"
871 	"  WARNING: Partitioning is a write-once setting once it is set to complete.\n"
872 	"  Power cycling is required to initialize partitions after set to complete.\n"
873 #ifdef CONFIG_SUPPORT_EMMC_BOOT
874 	"mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
875 	" - Set the BOOT_BUS_WIDTH field of the specified device\n"
876 	"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
877 	" - Change sizes of boot and RPMB partitions of specified device\n"
878 	"mmc partconf dev [boot_ack boot_partition partition_access]\n"
879 	" - Show or change the bits of the PARTITION_CONFIG field of the specified device\n"
880 	"mmc rst-function dev value\n"
881 	" - Change the RST_n_FUNCTION field of the specified device\n"
882 	"   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
883 #endif
884 #ifdef CONFIG_SUPPORT_EMMC_RPMB
885 	"mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
886 	"mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
887 	"mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
888 	"mmc rpmb counter - read the value of the write counter\n"
889 #endif
890 	"mmc setdsr <value> - set DSR register value\n"
891 #ifdef CONFIG_CMD_BKOPS_ENABLE
892 	"mmc bkops-enable <dev> - enable background operations handshake on device\n"
893 	"   WARNING: This is a write-once setting.\n"
894 #endif
895 	);
896 
897 /* Old command kept for compatibility. Same as 'mmc info' */
898 U_BOOT_CMD(
899 	mmcinfo, 1, 0, do_mmcinfo,
900 	"display MMC info",
901 	"- display info of the current MMC device"
902 );
903