3 * Kyle Harris, kharris@nexus-tech.net
5 * SPDX-License-Identifier: GPL-2.0+
12 static int curr_device = -1;
13 #ifndef CONFIG_GENERIC_MMC
14 int do_mmc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
21 if (strcmp(argv[1], "init") == 0) {
27 } else if (argc == 3) {
28 dev = (int)simple_strtoul(argv[2], NULL, 10);
33 if (mmc_legacy_init(dev) != 0) {
34 puts("No MMC card found\n");
35 return CMD_RET_FAILURE;
39 printf("mmc%d is available\n", curr_device);
40 } else if (strcmp(argv[1], "device") == 0) {
42 if (curr_device < 0) {
43 puts("No MMC device available\n");
44 return CMD_RET_FAILURE;
46 } else if (argc == 3) {
47 dev = (int)simple_strtoul(argv[2], NULL, 10);
49 #ifdef CONFIG_SYS_MMC_SET_DEV
50 if (mmc_set_dev(dev) != 0)
51 return CMD_RET_FAILURE;
58 printf("mmc%d is current device\n", curr_device);
63 return CMD_RET_SUCCESS;
69 "init [dev] - init MMC sub system\n"
70 "mmc device [dev] - show or set current device"
72 #else /* !CONFIG_GENERIC_MMC */
74 static void print_mmcinfo(struct mmc *mmc)
78 printf("Device: %s\n", mmc->cfg->name);
79 printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
80 printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
81 printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
82 (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
83 (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
85 printf("Tran Speed: %d\n", mmc->tran_speed);
86 printf("Rd Block Len: %d\n", mmc->read_bl_len);
88 printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
89 (mmc->version >> 8) & 0xf, mmc->version & 0xff);
91 printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
93 print_size(mmc->capacity, "\n");
95 printf("Bus Width: %d-bit%s\n", mmc->bus_width,
96 mmc->ddr_mode ? " DDR" : "");
98 puts("Erase Group Size: ");
99 print_size(((u64)mmc->erase_grp_size) << 9, "\n");
101 if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
102 bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
103 bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
105 puts("HC WP Group Size: ");
106 print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
108 puts("User Capacity: ");
109 print_size(mmc->capacity_user, usr_enh ? " ENH" : "");
110 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_USR)
115 puts("User Enhanced Start: ");
116 print_size(mmc->enh_user_start, "\n");
117 puts("User Enhanced Size: ");
118 print_size(mmc->enh_user_size, "\n");
120 puts("Boot Capacity: ");
121 print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
122 puts("RPMB Capacity: ");
123 print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
125 for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
126 bool is_enh = has_enh &&
127 (mmc->part_attr & EXT_CSD_ENH_GP(i));
128 if (mmc->capacity_gp[i]) {
129 printf("GP%i Capacity: ", i+1);
130 print_size(mmc->capacity_gp[i],
131 is_enh ? " ENH" : "");
132 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_GP(i))
141 static struct mmc *init_mmc_device(int dev, bool force_init)
144 mmc = find_mmc_device(dev);
146 printf("no mmc device at slot %x\n", dev);
156 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
160 if (curr_device < 0) {
161 if (get_mmc_num() > 0)
164 puts("No MMC device available\n");
165 return CMD_RET_FAILURE;
169 mmc = init_mmc_device(curr_device, false);
171 return CMD_RET_FAILURE;
174 return CMD_RET_SUCCESS;
177 #ifdef CONFIG_SUPPORT_EMMC_RPMB
178 static int confirm_key_prog(void)
180 puts("Warning: Programming authentication key can be done only once !\n"
181 " Use this command only if you are sure of what you are doing,\n"
182 "Really perform the key programming? <y/N> ");
186 puts("Authentication key programming aborted\n");
190 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
191 int argc, char * const argv[])
194 struct mmc *mmc = find_mmc_device(curr_device);
197 return CMD_RET_USAGE;
199 key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
200 if (!confirm_key_prog())
201 return CMD_RET_FAILURE;
202 if (mmc_rpmb_set_key(mmc, key_addr)) {
203 printf("ERROR - Key already programmed ?\n");
204 return CMD_RET_FAILURE;
206 return CMD_RET_SUCCESS;
209 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
210 int argc, char * const argv[])
215 void *key_addr = NULL;
216 struct mmc *mmc = find_mmc_device(curr_device);
219 return CMD_RET_USAGE;
221 addr = (void *)simple_strtoul(argv[1], NULL, 16);
222 blk = simple_strtoul(argv[2], NULL, 16);
223 cnt = simple_strtoul(argv[3], NULL, 16);
226 key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
228 printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
229 curr_device, blk, cnt);
230 n = mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
232 printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
234 return CMD_RET_FAILURE;
235 return CMD_RET_SUCCESS;
238 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
239 int argc, char * const argv[])
245 struct mmc *mmc = find_mmc_device(curr_device);
248 return CMD_RET_USAGE;
250 addr = (void *)simple_strtoul(argv[1], NULL, 16);
251 blk = simple_strtoul(argv[2], NULL, 16);
252 cnt = simple_strtoul(argv[3], NULL, 16);
253 key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
255 printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
256 curr_device, blk, cnt);
257 n = mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
259 printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
261 return CMD_RET_FAILURE;
262 return CMD_RET_SUCCESS;
265 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
266 int argc, char * const argv[])
268 unsigned long counter;
269 struct mmc *mmc = find_mmc_device(curr_device);
271 if (mmc_rpmb_get_counter(mmc, &counter))
272 return CMD_RET_FAILURE;
273 printf("RPMB Write counter= %lx\n", counter);
274 return CMD_RET_SUCCESS;
277 static cmd_tbl_t cmd_rpmb[] = {
278 U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
279 U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
280 U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
281 U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
284 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
285 int argc, char * const argv[])
292 cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
294 /* Drop the rpmb subcommand */
298 if (cp == NULL || argc > cp->maxargs)
299 return CMD_RET_USAGE;
300 if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
301 return CMD_RET_SUCCESS;
303 mmc = init_mmc_device(curr_device, false);
305 return CMD_RET_FAILURE;
307 if (!(mmc->version & MMC_VERSION_MMC)) {
308 printf("It is not a EMMC device\n");
309 return CMD_RET_FAILURE;
311 if (mmc->version < MMC_VERSION_4_41) {
312 printf("RPMB not supported before version 4.41\n");
313 return CMD_RET_FAILURE;
315 /* Switch to the RPMB partition */
316 original_part = mmc->part_num;
317 if (mmc->part_num != MMC_PART_RPMB) {
318 if (mmc_switch_part(curr_device, MMC_PART_RPMB) != 0)
319 return CMD_RET_FAILURE;
320 mmc->part_num = MMC_PART_RPMB;
322 ret = cp->cmd(cmdtp, flag, argc, argv);
324 /* Return to original partition */
325 if (mmc->part_num != original_part) {
326 if (mmc_switch_part(curr_device, original_part) != 0)
327 return CMD_RET_FAILURE;
328 mmc->part_num = original_part;
334 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
335 int argc, char * const argv[])
342 return CMD_RET_USAGE;
344 addr = (void *)simple_strtoul(argv[1], NULL, 16);
345 blk = simple_strtoul(argv[2], NULL, 16);
346 cnt = simple_strtoul(argv[3], NULL, 16);
348 mmc = init_mmc_device(curr_device, false);
350 return CMD_RET_FAILURE;
352 printf("\nMMC read: dev # %d, block # %d, count %d ... ",
353 curr_device, blk, cnt);
355 n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
356 /* flush cache after read */
357 flush_cache((ulong)addr, cnt * 512); /* FIXME */
358 printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
360 return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
363 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
364 int argc, char * const argv[])
371 return CMD_RET_USAGE;
373 addr = (void *)simple_strtoul(argv[1], NULL, 16);
374 blk = simple_strtoul(argv[2], NULL, 16);
375 cnt = simple_strtoul(argv[3], NULL, 16);
377 mmc = init_mmc_device(curr_device, false);
379 return CMD_RET_FAILURE;
381 printf("\nMMC write: dev # %d, block # %d, count %d ... ",
382 curr_device, blk, cnt);
384 if (mmc_getwp(mmc) == 1) {
385 printf("Error: card is write protected!\n");
386 return CMD_RET_FAILURE;
388 n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
389 printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
391 return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
394 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
395 int argc, char * const argv[])
401 return CMD_RET_USAGE;
403 blk = simple_strtoul(argv[1], NULL, 16);
404 cnt = simple_strtoul(argv[2], NULL, 16);
406 mmc = init_mmc_device(curr_device, false);
408 return CMD_RET_FAILURE;
410 printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
411 curr_device, blk, cnt);
413 if (mmc_getwp(mmc) == 1) {
414 printf("Error: card is write protected!\n");
415 return CMD_RET_FAILURE;
417 n = mmc->block_dev.block_erase(curr_device, blk, cnt);
418 printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
420 return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
423 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
424 int argc, char * const argv[])
428 mmc = init_mmc_device(curr_device, true);
430 return CMD_RET_FAILURE;
432 return CMD_RET_SUCCESS;
435 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
436 int argc, char * const argv[])
438 block_dev_desc_t *mmc_dev;
441 mmc = init_mmc_device(curr_device, false);
443 return CMD_RET_FAILURE;
445 mmc_dev = mmc_get_dev(curr_device);
446 if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
448 return CMD_RET_SUCCESS;
451 puts("get mmc type error!\n");
452 return CMD_RET_FAILURE;
455 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
456 int argc, char * const argv[])
458 int dev, part = 0, ret;
463 } else if (argc == 2) {
464 dev = simple_strtoul(argv[1], NULL, 10);
465 } else if (argc == 3) {
466 dev = (int)simple_strtoul(argv[1], NULL, 10);
467 part = (int)simple_strtoul(argv[2], NULL, 10);
468 if (part > PART_ACCESS_MASK) {
469 printf("#part_num shouldn't be larger than %d\n",
471 return CMD_RET_FAILURE;
474 return CMD_RET_USAGE;
477 mmc = init_mmc_device(dev, true);
479 return CMD_RET_FAILURE;
481 ret = mmc_select_hwpart(dev, part);
482 printf("switch to partitions #%d, %s\n",
483 part, (!ret) ? "OK" : "ERROR");
488 if (mmc->part_config == MMCPART_NOAVAILABLE)
489 printf("mmc%d is current device\n", curr_device);
491 printf("mmc%d(part %d) is current device\n",
492 curr_device, mmc->part_num);
494 return CMD_RET_SUCCESS;
497 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
498 int argc, char * const argv[])
500 print_mmc_devices('\n');
501 return CMD_RET_SUCCESS;
504 static int parse_hwpart_user(struct mmc_hwpart_conf *pconf,
505 int argc, char * const argv[])
509 memset(&pconf->user, 0, sizeof(pconf->user));
512 if (!strcmp(argv[i], "enh")) {
515 pconf->user.enh_start =
516 simple_strtoul(argv[i+1], NULL, 10);
517 pconf->user.enh_size =
518 simple_strtoul(argv[i+2], NULL, 10);
520 } else if (!strcmp(argv[i], "wrrel")) {
523 pconf->user.wr_rel_change = 1;
524 if (!strcmp(argv[i+1], "on"))
525 pconf->user.wr_rel_set = 1;
526 else if (!strcmp(argv[i+1], "off"))
527 pconf->user.wr_rel_set = 0;
538 static int parse_hwpart_gp(struct mmc_hwpart_conf *pconf, int pidx,
539 int argc, char * const argv[])
543 memset(&pconf->gp_part[pidx], 0, sizeof(pconf->gp_part[pidx]));
547 pconf->gp_part[pidx].size = simple_strtoul(argv[0], NULL, 10);
551 if (!strcmp(argv[i], "enh")) {
552 pconf->gp_part[pidx].enhanced = 1;
554 } else if (!strcmp(argv[i], "wrrel")) {
557 pconf->gp_part[pidx].wr_rel_change = 1;
558 if (!strcmp(argv[i+1], "on"))
559 pconf->gp_part[pidx].wr_rel_set = 1;
560 else if (!strcmp(argv[i+1], "off"))
561 pconf->gp_part[pidx].wr_rel_set = 0;
572 static int do_mmc_hwpartition(cmd_tbl_t *cmdtp, int flag,
573 int argc, char * const argv[])
576 struct mmc_hwpart_conf pconf = { };
577 enum mmc_hwpart_conf_mode mode = MMC_HWPART_CONF_CHECK;
580 mmc = init_mmc_device(curr_device, false);
582 return CMD_RET_FAILURE;
585 return CMD_RET_USAGE;
588 if (!strcmp(argv[i], "user")) {
590 r = parse_hwpart_user(&pconf, argc-i, &argv[i]);
592 return CMD_RET_USAGE;
594 } else if (!strncmp(argv[i], "gp", 2) &&
595 strlen(argv[i]) == 3 &&
596 argv[i][2] >= '1' && argv[i][2] <= '4') {
597 pidx = argv[i][2] - '1';
599 r = parse_hwpart_gp(&pconf, pidx, argc-i, &argv[i]);
601 return CMD_RET_USAGE;
603 } else if (!strcmp(argv[i], "check")) {
604 mode = MMC_HWPART_CONF_CHECK;
606 } else if (!strcmp(argv[i], "set")) {
607 mode = MMC_HWPART_CONF_SET;
609 } else if (!strcmp(argv[i], "complete")) {
610 mode = MMC_HWPART_CONF_COMPLETE;
613 return CMD_RET_USAGE;
617 puts("Partition configuration:\n");
618 if (pconf.user.enh_size) {
619 puts("\tUser Enhanced Start: ");
620 print_size(((u64)pconf.user.enh_start) << 9, "\n");
621 puts("\tUser Enhanced Size: ");
622 print_size(((u64)pconf.user.enh_size) << 9, "\n");
624 puts("\tNo enhanced user data area\n");
626 if (pconf.user.wr_rel_change)
627 printf("\tUser partition write reliability: %s\n",
628 pconf.user.wr_rel_set ? "on" : "off");
629 for (pidx = 0; pidx < 4; pidx++) {
630 if (pconf.gp_part[pidx].size) {
631 printf("\tGP%i Capacity: ", pidx+1);
632 print_size(((u64)pconf.gp_part[pidx].size) << 9,
633 pconf.gp_part[pidx].enhanced ?
636 printf("\tNo GP%i partition\n", pidx+1);
638 if (pconf.gp_part[pidx].wr_rel_change)
639 printf("\tGP%i write reliability: %s\n", pidx+1,
640 pconf.gp_part[pidx].wr_rel_set ? "on" : "off");
643 if (!mmc_hwpart_config(mmc, &pconf, mode)) {
644 if (mode == MMC_HWPART_CONF_COMPLETE)
645 puts("Partitioning successful, power-cycle to make effective\n");
646 return CMD_RET_SUCCESS;
649 return CMD_RET_FAILURE;
653 #ifdef CONFIG_SUPPORT_EMMC_BOOT
654 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
655 int argc, char * const argv[])
659 u8 width, reset, mode;
664 return CMD_RET_USAGE;
666 dev = simple_strtoul(argv[1], &end, 10);
667 if (dev < 0 || dev >= get_mmc_dev_count() || *end != '\0') {
668 printf("Invalid mmc device '%s'; should be [0..%u]\n",
669 argv[1], get_mmc_dev_count() - 1);
670 return CMD_RET_FAILURE;
673 width = simple_strtoul(argv[2], &end, 10);
674 if (width > 2 || *end != '\0') {
675 printf("Invalid boot_bus_width parameter '%s'; expected [0..2]\n",
677 return CMD_RET_FAILURE;
680 reset = simple_strtoul(argv[3], &end, 10);
681 if (reset > 1 || *end != '\0') {
682 printf("Invalid reset_boot_bus_width parameter '%s'; expected 0 or 1\n",
684 return CMD_RET_FAILURE;
686 mode = simple_strtoul(argv[4], &end, 10);
687 if (mode > 2 || *end != '\0') {
688 printf("Invalid boot_mode parameter '%s'; expected [0..2]\n",
690 return CMD_RET_FAILURE;
693 mmc = init_mmc_device(dev, false);
695 printf("Failed to init MMC device %d\n", dev);
696 return CMD_RET_FAILURE;
700 puts("BOOT_BUS_WIDTH only exists on eMMC\n");
701 return CMD_RET_FAILURE;
704 ret = mmc_set_boot_bus_width(mmc, width, reset, mode);
706 printf("Setting boot bus width failed: %d\n", ret);
707 return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
710 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
711 int argc, char * const argv[])
715 u32 bootsize, rpmbsize;
720 return CMD_RET_USAGE;
722 dev = simple_strtoul(argv[1], &end, 10);
723 if (dev < 0 || dev >= get_mmc_dev_count() || *end != '\0') {
724 printf("Invalid mmc device '%s'; should be [0..%u]\n",
725 argv[1], get_mmc_dev_count() - 1);
726 return CMD_RET_FAILURE;
729 bootsize = simple_strtoul(argv[2], &end, 10);
730 if (bootsize > 64 || *end != '\0') {
731 return CMD_RET_FAILURE;
734 rpmbsize = simple_strtoul(argv[3], &end, 10);
735 if (rpmbsize > 64 || *end != '\0') {
736 return CMD_RET_FAILURE;
739 mmc = init_mmc_device(dev, false);
741 return CMD_RET_FAILURE;
744 printf("mmc device %d is not an EMMC device\n", dev);
745 return CMD_RET_FAILURE;
748 ret = mmc_boot_partition_size_change(mmc, bootsize, rpmbsize);
750 printf("EMMC boot partition size change failed: %d\n", ret);
751 return CMD_RET_FAILURE;
754 printf("EMMC boot partition Size %d MB\n", bootsize);
755 printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
756 return CMD_RET_SUCCESS;
759 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
760 int argc, char * const argv[])
764 u8 ack, part_num, access;
769 return CMD_RET_USAGE;
771 dev = simple_strtoul(argv[1], &end, 10);
772 if (dev < 0 || dev >= get_mmc_dev_count() || *end != '\0') {
773 printf("Invalid mmc device '%s'; should be [0..%u]\n",
774 argv[1], get_mmc_dev_count() - 1);
775 return CMD_RET_FAILURE;
778 ack = simple_strtoul(argv[2], &end, 10);
779 if (ack < 0 || ack > 1 || *end != '\0') {
780 printf("Invalid boot_ack value: %s\n", argv[2]);
781 return CMD_RET_FAILURE;
784 part_num = simple_strtoul(argv[3], &end, 10);
785 if (part_num < 0 || (part_num > 4 && part_num != 7) || *end != '\0') {
786 printf("Invalid part_num: %s\n", argv[3]);
787 return CMD_RET_FAILURE;
790 access = simple_strtoul(argv[4], &end, 10);
791 if (access < 0 || access > 7 || *end != '\0') {
792 printf("Invalid access value: %s\n", argv[4]);
793 return CMD_RET_FAILURE;
796 mmc = init_mmc_device(dev, false);
798 return CMD_RET_FAILURE;
801 puts("PARTITION_CONFIG only exists on eMMC\n");
802 return CMD_RET_FAILURE;
805 /* acknowledge to be sent during boot operation */
806 ret = mmc_set_part_conf(mmc, ack, part_num, access);
808 printf("partconf failed: %d\n", ret);
809 return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
812 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
813 int argc, char * const argv[])
821 * Set the RST_n_ENABLE bit of RST_n_FUNCTION
822 * The only valid values are 0x0, 0x1 and 0x2 and writing
823 * a value of 0x1 or 0x2 sets the value permanently.
826 return CMD_RET_USAGE;
828 dev = simple_strtoul(argv[1], &end, 10);
829 if (dev < 0 || dev >= get_mmc_dev_count() || *end != '\0') {
830 printf("Invalid mmc device '%s'; should be [0..%u]\n",
831 argv[1], get_mmc_dev_count() - 1);
832 return CMD_RET_FAILURE;
835 enable = simple_strtoul(argv[2], &end, 10);
837 if (enable > 2 || enable < 0) {
838 puts("Invalid RST_n_ENABLE value\n");
839 return CMD_RET_USAGE;
842 mmc = init_mmc_device(dev, false);
844 return CMD_RET_FAILURE;
847 puts("RST_n_FUNCTION only exists on eMMC\n");
848 return CMD_RET_FAILURE;
851 return mmc_set_rst_n_function(mmc, enable);
855 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
856 int argc, char * const argv[])
864 return CMD_RET_USAGE;
865 val = simple_strtoul(argv[2], &end, 16);
866 if (val > 0xffff || *end != '\0') {
867 printf("Invalid DSR value '%s'; expected hex number [0..ffff]\n",
869 return CMD_RET_FAILURE;
872 mmc = find_mmc_device(curr_device);
874 printf("no mmc device at slot %x\n", curr_device);
875 return CMD_RET_FAILURE;
877 ret = mmc_set_dsr(mmc, val);
878 printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
882 return CMD_RET_FAILURE;
884 return CMD_RET_SUCCESS;
889 static cmd_tbl_t cmd_mmc[] = {
890 U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
891 U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
892 U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
893 U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
894 U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
895 U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
896 U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
897 U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
898 U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
899 #ifdef CONFIG_SUPPORT_EMMC_BOOT
900 U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
901 U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
902 U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
903 U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
905 #ifdef CONFIG_SUPPORT_EMMC_RPMB
906 U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
908 U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
911 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
915 cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
917 /* Drop the mmc command */
921 if (cp == NULL || argc > cp->maxargs)
922 return CMD_RET_USAGE;
923 if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
924 return CMD_RET_SUCCESS;
926 if (curr_device < 0) {
927 if (get_mmc_num() > 0) {
930 puts("No MMC device available\n");
931 return CMD_RET_FAILURE;
934 return cp->cmd(cmdtp, flag, argc, argv);
938 mmc, 29, 1, do_mmcops,
940 "info - display info of the current MMC device\n"
941 "mmc read addr blk# cnt\n"
942 "mmc write addr blk# cnt\n"
943 "mmc erase blk# cnt\n"
945 "mmc part - lists available partition on current mmc device\n"
946 "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
947 "mmc list - lists available devices\n"
948 "mmc hwpartition [args...] - does hardware partitioning\n"
949 " arguments (sizes in 512-byte blocks):\n"
950 " [user [enh start cnt] [wrrel {on|off}]] - sets user data area attributes\n"
951 " [gp1|gp2|gp3|gp4 cnt [enh] [wrrel {on|off}]] - general purpose partition\n"
952 " [check|set|complete] - mode, complete set partitioning completed\n"
953 " WARNING: Partitioning is a write-once setting once it is set to complete.\n"
954 " Power cycling is required to initialize partitions after set to complete.\n"
955 #ifdef CONFIG_SUPPORT_EMMC_BOOT
956 "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
957 " - Set the BOOT_BUS_WIDTH field of the specified device\n"
958 "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
959 " - Change sizes of boot and RPMB partitions of specified device\n"
960 "mmc partconf dev boot_ack boot_partition partition_access\n"
961 " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
962 "mmc rst-function dev value\n"
963 " - Change the RST_n_FUNCTION field of the specified device\n"
964 " WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
966 #ifdef CONFIG_SUPPORT_EMMC_RPMB
967 "mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
968 "mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
969 "mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
970 "mmc rpmb counter - read the value of the write counter\n"
972 "mmc setdsr <value> - set DSR register value\n"
975 /* Old command kept for compatibility. Same as 'mmc info' */
977 mmcinfo, 1, 0, do_mmcinfo,
979 "- display info of the current MMC device"
982 #endif /* !CONFIG_GENERIC_MMC */