common/cmd_mmc.c - platform/external/u-boot - Gitiles

 /*
  * (C) Copyright 2003
  * Kyle Harris, kharris@nexus-tech.net
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <command.h>
 #include <mmc.h>

 static int curr_device = -1;
 #ifndef CONFIG_GENERIC_MMC
 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int dev;

 	if (argc < 2)
 		return CMD_RET_USAGE;

 	if (strcmp(argv[1], "init") == 0) {
 		if (argc == 2) {
 			if (curr_device < 0)
 				dev = 1;
 			else
 				dev = curr_device;
 		} else if (argc == 3) {
 			dev = (int)simple_strtoul(argv[2], NULL, 10);
 		} else {
 			return CMD_RET_USAGE;
 		}

 		if (mmc_legacy_init(dev) != 0) {
 			puts("No MMC card found\n");
 			return 1;
 		}

 		curr_device = dev;
 		printf("mmc%d is available\n", curr_device);
 	} else if (strcmp(argv[1], "device") == 0) {
 		if (argc == 2) {
 			if (curr_device < 0) {
 				puts("No MMC device available\n");
 				return 1;
 			}
 		} else if (argc == 3) {
 			dev = (int)simple_strtoul(argv[2], NULL, 10);

 #ifdef CONFIG_SYS_MMC_SET_DEV
 			if (mmc_set_dev(dev) != 0)
 				return 1;
 #endif
 			curr_device = dev;
 		} else {
 			return CMD_RET_USAGE;
 		}

 		printf("mmc%d is current device\n", curr_device);
 	} else {
 		return CMD_RET_USAGE;
 	}

 	return 0;
 }

 U_BOOT_CMD(
 	mmc, 3, 1, do_mmc,
 	"MMC sub-system",
 	"init [dev] - init MMC sub system\n"
 	"mmc device [dev] - show or set current device"
 );
 #else /* !CONFIG_GENERIC_MMC */

 static void print_mmcinfo(struct mmc *mmc)
 {
 	int i;

 	printf("Device: %s\n", mmc->cfg->name);
 	printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
 	printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
 	printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
 			(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
 			(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);

 	printf("Tran Speed: %d\n", mmc->tran_speed);
 	printf("Rd Block Len: %d\n", mmc->read_bl_len);

 	printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 			(mmc->version >> 8) & 0xf, mmc->version & 0xff);

 	printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 	puts("Capacity: ");
 	print_size(mmc->capacity, "\n");

 	printf("Bus Width: %d-bit%s\n", mmc->bus_width,
 			mmc->ddr_mode ? " DDR" : "");

 	puts("Erase Group Size: ");
 	print_size(((u64)mmc->erase_grp_size) << 9, "\n");

 	if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
 		bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
 		bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);

 		puts("HC WP Group Size: ");
 		print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");

 		puts("User Capacity: ");
 		print_size(mmc->capacity_user, usr_enh ? " ENH\n" : "\n");
 		if (usr_enh) {
 			puts("User Enhanced Start: ");
 			print_size(mmc->enh_user_start, "\n");
 			puts("User Enhanced Size: ");
 			print_size(mmc->enh_user_size, "\n");
 		}
 		puts("Boot Capacity: ");
 		print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
 		puts("RPMB Capacity: ");
 		print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");

 		for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
 			bool is_enh = has_enh &&
 				(mmc->part_attr & EXT_CSD_ENH_GP(i));
 			if (mmc->capacity_gp[i]) {
 				printf("GP%i Capacity: ", i+1);
 				print_size(mmc->capacity_gp[i],
 					   is_enh ? " ENH\n" : "\n");
 			}
 		}
 	}
 }
 static struct mmc *init_mmc_device(int dev, bool force_init)
 {
 	struct mmc *mmc;
 	mmc = find_mmc_device(dev);
 	if (!mmc) {
 		printf("no mmc device at slot %x\n", dev);
 		return NULL;
 	}
 	if (force_init)
 		mmc->has_init = 0;
 	if (mmc_init(mmc))
 		return NULL;
 	return mmc;
 }
 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct mmc *mmc;

 	if (curr_device < 0) {
 		if (get_mmc_num() > 0)
 			curr_device = 0;
 		else {
 			puts("No MMC device available\n");
 			return 1;
 		}
 	}

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	print_mmcinfo(mmc);
 	return CMD_RET_SUCCESS;
 }

 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 static int confirm_key_prog(void)
 {
 	puts("Warning: Programming authentication key can be done only once !\n"
 	     "         Use this command only if you are sure of what you are doing,\n"
 	     "Really perform the key programming? <y/N> ");
 	if (confirm_yesno())
 		return 1;

 	puts("Authentication key programming aborted\n");
 	return 0;
 }
 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
 			  int argc, char * const argv[])
 {
 	void *key_addr;
 	struct mmc *mmc = find_mmc_device(curr_device);

 	if (argc != 2)
 		return CMD_RET_USAGE;

 	key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
 	if (!confirm_key_prog())
 		return CMD_RET_FAILURE;
 	if (mmc_rpmb_set_key(mmc, key_addr)) {
 		printf("ERROR - Key already programmed ?\n");
 		return CMD_RET_FAILURE;
 	}
 	return CMD_RET_SUCCESS;
 }
 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
 			   int argc, char * const argv[])
 {
 	u16 blk, cnt;
 	void *addr;
 	int n;
 	void *key_addr = NULL;
 	struct mmc *mmc = find_mmc_device(curr_device);

 	if (argc < 4)
 		return CMD_RET_USAGE;

 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
 	blk = simple_strtoul(argv[2], NULL, 16);
 	cnt = simple_strtoul(argv[3], NULL, 16);

 	if (argc == 5)
 		key_addr = (void *)simple_strtoul(argv[4], NULL, 16);

 	printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
 	       curr_device, blk, cnt);
 	n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);

 	printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 	if (n != cnt)
 		return CMD_RET_FAILURE;
 	return CMD_RET_SUCCESS;
 }
 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
 			    int argc, char * const argv[])
 {
 	u16 blk, cnt;
 	void *addr;
 	int n;
 	void *key_addr;
 	struct mmc *mmc = find_mmc_device(curr_device);

 	if (argc != 5)
 		return CMD_RET_USAGE;

 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
 	blk = simple_strtoul(argv[2], NULL, 16);
 	cnt = simple_strtoul(argv[3], NULL, 16);
 	key_addr = (void *)simple_strtoul(argv[4], NULL, 16);

 	printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
 	       curr_device, blk, cnt);
 	n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);

 	printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 	if (n != cnt)
 		return CMD_RET_FAILURE;
 	return CMD_RET_SUCCESS;
 }
 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
 			      int argc, char * const argv[])
 {
 	unsigned long counter;
 	struct mmc *mmc = find_mmc_device(curr_device);

 	if (mmc_rpmb_get_counter(mmc, &counter))
 		return CMD_RET_FAILURE;
 	printf("RPMB Write counter= %lx\n", counter);
 	return CMD_RET_SUCCESS;
 }

 static cmd_tbl_t cmd_rpmb[] = {
 	U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
 	U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
 	U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
 	U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
 };

 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
 		      int argc, char * const argv[])
 {
 	cmd_tbl_t *cp;
 	struct mmc *mmc;
 	char original_part;
 	int ret;

 	cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));

 	/* Drop the rpmb subcommand */
 	argc--;
 	argv++;

 	if (cp == NULL || argc > cp->maxargs)
 		return CMD_RET_USAGE;
 	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 		return CMD_RET_SUCCESS;

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	if (!(mmc->version & MMC_VERSION_MMC)) {
 		printf("It is not a EMMC device\n");
 		return CMD_RET_FAILURE;
 	}
 	if (mmc->version < MMC_VERSION_4_41) {
 		printf("RPMB not supported before version 4.41\n");
 		return CMD_RET_FAILURE;
 	}
 	/* Switch to the RPMB partition */
 	original_part = mmc->part_num;
 	if (mmc->part_num != MMC_PART_RPMB) {
 		if (mmc_switch_part(curr_device, MMC_PART_RPMB) != 0)
 			return CMD_RET_FAILURE;
 		mmc->part_num = MMC_PART_RPMB;
 	}
 	ret = cp->cmd(cmdtp, flag, argc, argv);

 	/* Return to original partition */
 	if (mmc->part_num != original_part) {
 		if (mmc_switch_part(curr_device, original_part) != 0)
 			return CMD_RET_FAILURE;
 		mmc->part_num = original_part;
 	}
 	return ret;
 }
 #endif

 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
 		       int argc, char * const argv[])
 {
 	struct mmc *mmc;
 	u32 blk, cnt, n;
 	void *addr;

 	if (argc != 4)
 		return CMD_RET_USAGE;

 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
 	blk = simple_strtoul(argv[2], NULL, 16);
 	cnt = simple_strtoul(argv[3], NULL, 16);

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 	       curr_device, blk, cnt);

 	n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
 	/* flush cache after read */
 	flush_cache((ulong)addr, cnt * 512); /* FIXME */
 	printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");

 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 }
 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
 			int argc, char * const argv[])
 {
 	struct mmc *mmc;
 	u32 blk, cnt, n;
 	void *addr;

 	if (argc != 4)
 		return CMD_RET_USAGE;

 	addr = (void *)simple_strtoul(argv[1], NULL, 16);
 	blk = simple_strtoul(argv[2], NULL, 16);
 	cnt = simple_strtoul(argv[3], NULL, 16);

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 	       curr_device, blk, cnt);

 	if (mmc_getwp(mmc) == 1) {
 		printf("Error: card is write protected!\n");
 		return CMD_RET_FAILURE;
 	}
 	n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
 	printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");

 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 }
 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
 			int argc, char * const argv[])
 {
 	struct mmc *mmc;
 	u32 blk, cnt, n;

 	if (argc != 3)
 		return CMD_RET_USAGE;

 	blk = simple_strtoul(argv[1], NULL, 16);
 	cnt = simple_strtoul(argv[2], NULL, 16);

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
 	       curr_device, blk, cnt);

 	if (mmc_getwp(mmc) == 1) {
 		printf("Error: card is write protected!\n");
 		return CMD_RET_FAILURE;
 	}
 	n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 	printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");

 	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 }
 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
 			 int argc, char * const argv[])
 {
 	struct mmc *mmc;

 	mmc = init_mmc_device(curr_device, true);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	return CMD_RET_SUCCESS;
 }
 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
 		       int argc, char * const argv[])
 {
 	block_dev_desc_t *mmc_dev;
 	struct mmc *mmc;

 	mmc = init_mmc_device(curr_device, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	mmc_dev = mmc_get_dev(curr_device);
 	if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
 		print_part(mmc_dev);
 		return CMD_RET_SUCCESS;
 	}

 	puts("get mmc type error!\n");
 	return CMD_RET_FAILURE;
 }
 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
 		      int argc, char * const argv[])
 {
 	int dev, part = 0, ret;
 	struct mmc *mmc;

 	if (argc == 1) {
 		dev = curr_device;
 	} else if (argc == 2) {
 		dev = simple_strtoul(argv[1], NULL, 10);
 	} else if (argc == 3) {
 		dev = (int)simple_strtoul(argv[1], NULL, 10);
 		part = (int)simple_strtoul(argv[2], NULL, 10);
 		if (part > PART_ACCESS_MASK) {
 			printf("#part_num shouldn't be larger than %d\n",
 			       PART_ACCESS_MASK);
 			return CMD_RET_FAILURE;
 		}
 	} else {
 		return CMD_RET_USAGE;
 	}

 	mmc = init_mmc_device(dev, true);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	ret = mmc_select_hwpart(dev, part);
 	printf("switch to partitions #%d, %s\n",
 	       part, (!ret) ? "OK" : "ERROR");
 	if (ret)
 		return 1;

 	curr_device = dev;
 	if (mmc->part_config == MMCPART_NOAVAILABLE)
 		printf("mmc%d is current device\n", curr_device);
 	else
 		printf("mmc%d(part %d) is current device\n",
 		       curr_device, mmc->part_num);

 	return CMD_RET_SUCCESS;
 }
 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
 		       int argc, char * const argv[])
 {
 	print_mmc_devices('\n');
 	return CMD_RET_SUCCESS;
 }
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
 			  int argc, char * const argv[])
 {
 	int dev;
 	struct mmc *mmc;
 	u8 width, reset, mode;

 	if (argc != 5)
 		return CMD_RET_USAGE;
 	dev = simple_strtoul(argv[1], NULL, 10);
 	width = simple_strtoul(argv[2], NULL, 10);
 	reset = simple_strtoul(argv[3], NULL, 10);
 	mode = simple_strtoul(argv[4], NULL, 10);

 	mmc = init_mmc_device(dev, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	if (IS_SD(mmc)) {
 		puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 		return CMD_RET_FAILURE;
 	}

 	/* acknowledge to be sent during boot operation */
 	return mmc_set_boot_bus_width(mmc, width, reset, mode);
 }
 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
 			      int argc, char * const argv[])
 {
 	int dev;
 	struct mmc *mmc;
 	u32 bootsize, rpmbsize;

 	if (argc != 4)
 		return CMD_RET_USAGE;
 	dev = simple_strtoul(argv[1], NULL, 10);
 	bootsize = simple_strtoul(argv[2], NULL, 10);
 	rpmbsize = simple_strtoul(argv[3], NULL, 10);

 	mmc = init_mmc_device(dev, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	if (IS_SD(mmc)) {
 		printf("It is not a EMMC device\n");
 		return CMD_RET_FAILURE;
 	}

 	if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
 		printf("EMMC boot partition Size change Failed.\n");
 		return CMD_RET_FAILURE;
 	}

 	printf("EMMC boot partition Size %d MB\n", bootsize);
 	printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 	return CMD_RET_SUCCESS;
 }
 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
 			   int argc, char * const argv[])
 {
 	int dev;
 	struct mmc *mmc;
 	u8 ack, part_num, access;

 	if (argc != 5)
 		return CMD_RET_USAGE;

 	dev = simple_strtoul(argv[1], NULL, 10);
 	ack = simple_strtoul(argv[2], NULL, 10);
 	part_num = simple_strtoul(argv[3], NULL, 10);
 	access = simple_strtoul(argv[4], NULL, 10);

 	mmc = init_mmc_device(dev, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	if (IS_SD(mmc)) {
 		puts("PARTITION_CONFIG only exists on eMMC\n");
 		return CMD_RET_FAILURE;
 	}

 	/* acknowledge to be sent during boot operation */
 	return mmc_set_part_conf(mmc, ack, part_num, access);
 }
 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
 			   int argc, char * const argv[])
 {
 	int dev;
 	struct mmc *mmc;
 	u8 enable;

 	/*
 	 * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 	 * The only valid values are 0x0, 0x1 and 0x2 and writing
 	 * a value of 0x1 or 0x2 sets the value permanently.
 	 */
 	if (argc != 3)
 		return CMD_RET_USAGE;

 	dev = simple_strtoul(argv[1], NULL, 10);
 	enable = simple_strtoul(argv[2], NULL, 10);

 	if (enable > 2 || enable < 0) {
 		puts("Invalid RST_n_ENABLE value\n");
 		return CMD_RET_USAGE;
 	}

 	mmc = init_mmc_device(dev, false);
 	if (!mmc)
 		return CMD_RET_FAILURE;

 	if (IS_SD(mmc)) {
 		puts("RST_n_FUNCTION only exists on eMMC\n");
 		return CMD_RET_FAILURE;
 	}

 	return mmc_set_rst_n_function(mmc, enable);
 }
 #endif
 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
 			 int argc, char * const argv[])
 {
 	struct mmc *mmc;
 	u32 val;
 	int ret;

 	if (argc != 2)
 		return CMD_RET_USAGE;
 	val = simple_strtoul(argv[2], NULL, 16);

 	mmc = find_mmc_device(curr_device);
 	if (!mmc) {
 		printf("no mmc device at slot %x\n", curr_device);
 		return CMD_RET_FAILURE;
 	}
 	ret = mmc_set_dsr(mmc, val);
 	printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
 	if (!ret) {
 		mmc->has_init = 0;
 		if (mmc_init(mmc))
 			return CMD_RET_FAILURE;
 		else
 			return CMD_RET_SUCCESS;
 	}
 	return ret;
 }

 static cmd_tbl_t cmd_mmc[] = {
 	U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
 	U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
 	U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
 	U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
 	U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
 	U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
 	U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
 	U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 	U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
 	U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
 	U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
 	U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
 #endif
 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 	U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
 #endif
 	U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
 };

 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *cp;

 	cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));

 	/* Drop the mmc command */
 	argc--;
 	argv++;

 	if (cp == NULL || argc > cp->maxargs)
 		return CMD_RET_USAGE;
 	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 		return CMD_RET_SUCCESS;

 	if (curr_device < 0) {
 		if (get_mmc_num() > 0) {
 			curr_device = 0;
 		} else {
 			puts("No MMC device available\n");
 			return CMD_RET_FAILURE;
 		}
 	}
 	return cp->cmd(cmdtp, flag, argc, argv);
 }

 U_BOOT_CMD(
 	mmc, 7, 1, do_mmcops,
 	"MMC sub system",
 	"info - display info of the current MMC device\n"
 	"mmc read addr blk# cnt\n"
 	"mmc write addr blk# cnt\n"
 	"mmc erase blk# cnt\n"
 	"mmc rescan\n"
 	"mmc part - lists available partition on current mmc device\n"
 	"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 	"mmc list - lists available devices\n"
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 	"mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 	" - Set the BOOT_BUS_WIDTH field of the specified device\n"
 	"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 	" - Change sizes of boot and RPMB partitions of specified device\n"
 	"mmc partconf dev boot_ack boot_partition partition_access\n"
 	" - Change the bits of the PARTITION_CONFIG field of the specified device\n"
 	"mmc rst-function dev value\n"
 	" - Change the RST_n_FUNCTION field of the specified device\n"
 	"   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 #endif
 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 	"mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
 	"mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
 	"mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
 	"mmc rpmb counter - read the value of the write counter\n"
 #endif
 	"mmc setdsr <value> - set DSR register value\n"
 	);

 /* Old command kept for compatibility. Same as 'mmc info' */
 U_BOOT_CMD(
 	mmcinfo, 1, 0, do_mmcinfo,
 	"display MMC info",
 	"- display info of the current MMC device"
 );

 #endif /* !CONFIG_GENERIC_MMC */
	/*
	* (C) Copyright 2003
	* Kyle Harris, kharris@nexus-tech.net
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <command.h>
	#include <mmc.h>

	static int curr_device = -1;
	#ifndef CONFIG_GENERIC_MMC
	int do_mmc (cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	{
	int dev;

	if (argc < 2)
	return CMD_RET_USAGE;

	if (strcmp(argv[1], "init") == 0) {
	if (argc == 2) {
	if (curr_device < 0)
	dev = 1;
	else
	dev = curr_device;
	} else if (argc == 3) {
	dev = (int)simple_strtoul(argv[2], NULL, 10);
	} else {
	return CMD_RET_USAGE;
	}

	if (mmc_legacy_init(dev) != 0) {
	puts("No MMC card found\n");
	return 1;
	}

	curr_device = dev;
	printf("mmc%d is available\n", curr_device);
	} else if (strcmp(argv[1], "device") == 0) {
	if (argc == 2) {
	if (curr_device < 0) {
	puts("No MMC device available\n");
	return 1;
	}
	} else if (argc == 3) {
	dev = (int)simple_strtoul(argv[2], NULL, 10);

	#ifdef CONFIG_SYS_MMC_SET_DEV
	if (mmc_set_dev(dev) != 0)
	return 1;
	#endif
	curr_device = dev;
	} else {
	return CMD_RET_USAGE;
	}

	printf("mmc%d is current device\n", curr_device);
	} else {
	return CMD_RET_USAGE;
	}

	return 0;
	}

	U_BOOT_CMD(
	mmc, 3, 1, do_mmc,
	"MMC sub-system",
	"init [dev] - init MMC sub system\n"
	"mmc device [dev] - show or set current device"
	);
	#else /* !CONFIG_GENERIC_MMC */

	static void print_mmcinfo(struct mmc *mmc)
	{
	int i;

	printf("Device: %s\n", mmc->cfg->name);
	printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
	printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
	printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
	(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
	(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);

	printf("Tran Speed: %d\n", mmc->tran_speed);
	printf("Rd Block Len: %d\n", mmc->read_bl_len);

	printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
	(mmc->version >> 8) & 0xf, mmc->version & 0xff);

	printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
	puts("Capacity: ");
	print_size(mmc->capacity, "\n");

	printf("Bus Width: %d-bit%s\n", mmc->bus_width,
	mmc->ddr_mode ? " DDR" : "");

	puts("Erase Group Size: ");
	print_size(((u64)mmc->erase_grp_size) << 9, "\n");

	if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
	bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
	bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);

	puts("HC WP Group Size: ");
	print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");

	puts("User Capacity: ");
	print_size(mmc->capacity_user, usr_enh ? " ENH\n" : "\n");
	if (usr_enh) {
	puts("User Enhanced Start: ");
	print_size(mmc->enh_user_start, "\n");
	puts("User Enhanced Size: ");
	print_size(mmc->enh_user_size, "\n");
	}
	puts("Boot Capacity: ");
	print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
	puts("RPMB Capacity: ");
	print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");

	for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
	bool is_enh = has_enh &&
	(mmc->part_attr & EXT_CSD_ENH_GP(i));
	if (mmc->capacity_gp[i]) {
	printf("GP%i Capacity: ", i+1);
	print_size(mmc->capacity_gp[i],
	is_enh ? " ENH\n" : "\n");
	}
	}
	}
	}
	static struct mmc *init_mmc_device(int dev, bool force_init)
	{
	struct mmc *mmc;
	mmc = find_mmc_device(dev);
	if (!mmc) {
	printf("no mmc device at slot %x\n", dev);
	return NULL;
	}
	if (force_init)
	mmc->has_init = 0;
	if (mmc_init(mmc))
	return NULL;
	return mmc;
	}
	static int do_mmcinfo(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	{
	struct mmc *mmc;

	if (curr_device < 0) {
	if (get_mmc_num() > 0)
	curr_device = 0;
	else {
	puts("No MMC device available\n");
	return 1;
	}
	}

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	print_mmcinfo(mmc);
	return CMD_RET_SUCCESS;
	}

	#ifdef CONFIG_SUPPORT_EMMC_RPMB
	static int confirm_key_prog(void)
	{
	puts("Warning: Programming authentication key can be done only once !\n"
	" Use this command only if you are sure of what you are doing,\n"
	"Really perform the key programming? <y/N> ");
	if (confirm_yesno())
	return 1;

	puts("Authentication key programming aborted\n");
	return 0;
	}
	static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	void *key_addr;
	struct mmc *mmc = find_mmc_device(curr_device);

	if (argc != 2)
	return CMD_RET_USAGE;

	key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
	if (!confirm_key_prog())
	return CMD_RET_FAILURE;
	if (mmc_rpmb_set_key(mmc, key_addr)) {
	printf("ERROR - Key already programmed ?\n");
	return CMD_RET_FAILURE;
	}
	return CMD_RET_SUCCESS;
	}
	static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	u16 blk, cnt;
	void *addr;
	int n;
	void *key_addr = NULL;
	struct mmc *mmc = find_mmc_device(curr_device);

	if (argc < 4)
	return CMD_RET_USAGE;

	addr = (void *)simple_strtoul(argv[1], NULL, 16);
	blk = simple_strtoul(argv[2], NULL, 16);
	cnt = simple_strtoul(argv[3], NULL, 16);

	if (argc == 5)
	key_addr = (void *)simple_strtoul(argv[4], NULL, 16);

	printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
	curr_device, blk, cnt);
	n = mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);

	printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
	if (n != cnt)
	return CMD_RET_FAILURE;
	return CMD_RET_SUCCESS;
	}
	static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	u16 blk, cnt;
	void *addr;
	int n;
	void *key_addr;
	struct mmc *mmc = find_mmc_device(curr_device);

	if (argc != 5)
	return CMD_RET_USAGE;

	addr = (void *)simple_strtoul(argv[1], NULL, 16);
	blk = simple_strtoul(argv[2], NULL, 16);
	cnt = simple_strtoul(argv[3], NULL, 16);
	key_addr = (void *)simple_strtoul(argv[4], NULL, 16);

	printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
	curr_device, blk, cnt);
	n = mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);

	printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
	if (n != cnt)
	return CMD_RET_FAILURE;
	return CMD_RET_SUCCESS;
	}
	static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	unsigned long counter;
	struct mmc *mmc = find_mmc_device(curr_device);

	if (mmc_rpmb_get_counter(mmc, &counter))
	return CMD_RET_FAILURE;
	printf("RPMB Write counter= %lx\n", counter);
	return CMD_RET_SUCCESS;
	}

	static cmd_tbl_t cmd_rpmb[] = {
	U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
	U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
	U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
	U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
	};

	static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	cmd_tbl_t *cp;
	struct mmc *mmc;
	char original_part;
	int ret;

	cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));

	/* Drop the rpmb subcommand */
	argc--;
	argv++;

	if (cp == NULL \|\| argc > cp->maxargs)
	return CMD_RET_USAGE;
	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
	return CMD_RET_SUCCESS;

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	if (!(mmc->version & MMC_VERSION_MMC)) {
	printf("It is not a EMMC device\n");
	return CMD_RET_FAILURE;
	}
	if (mmc->version < MMC_VERSION_4_41) {
	printf("RPMB not supported before version 4.41\n");
	return CMD_RET_FAILURE;
	}
	/* Switch to the RPMB partition */
	original_part = mmc->part_num;
	if (mmc->part_num != MMC_PART_RPMB) {
	if (mmc_switch_part(curr_device, MMC_PART_RPMB) != 0)
	return CMD_RET_FAILURE;
	mmc->part_num = MMC_PART_RPMB;
	}
	ret = cp->cmd(cmdtp, flag, argc, argv);

	/* Return to original partition */
	if (mmc->part_num != original_part) {
	if (mmc_switch_part(curr_device, original_part) != 0)
	return CMD_RET_FAILURE;
	mmc->part_num = original_part;
	}
	return ret;
	}
	#endif

	static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	struct mmc *mmc;
	u32 blk, cnt, n;
	void *addr;

	if (argc != 4)
	return CMD_RET_USAGE;

	addr = (void *)simple_strtoul(argv[1], NULL, 16);
	blk = simple_strtoul(argv[2], NULL, 16);
	cnt = simple_strtoul(argv[3], NULL, 16);

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	printf("\nMMC read: dev # %d, block # %d, count %d ... ",
	curr_device, blk, cnt);

	n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
	/* flush cache after read */
	flush_cache((ulong)addr, cnt * 512); /* FIXME */
	printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");

	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
	}
	static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	struct mmc *mmc;
	u32 blk, cnt, n;
	void *addr;

	if (argc != 4)
	return CMD_RET_USAGE;

	addr = (void *)simple_strtoul(argv[1], NULL, 16);
	blk = simple_strtoul(argv[2], NULL, 16);
	cnt = simple_strtoul(argv[3], NULL, 16);

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	printf("\nMMC write: dev # %d, block # %d, count %d ... ",
	curr_device, blk, cnt);

	if (mmc_getwp(mmc) == 1) {
	printf("Error: card is write protected!\n");
	return CMD_RET_FAILURE;
	}
	n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
	printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");

	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
	}
	static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	struct mmc *mmc;
	u32 blk, cnt, n;

	if (argc != 3)
	return CMD_RET_USAGE;

	blk = simple_strtoul(argv[1], NULL, 16);
	cnt = simple_strtoul(argv[2], NULL, 16);

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
	curr_device, blk, cnt);

	if (mmc_getwp(mmc) == 1) {
	printf("Error: card is write protected!\n");
	return CMD_RET_FAILURE;
	}
	n = mmc->block_dev.block_erase(curr_device, blk, cnt);
	printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");

	return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
	}
	static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	struct mmc *mmc;

	mmc = init_mmc_device(curr_device, true);
	if (!mmc)
	return CMD_RET_FAILURE;

	return CMD_RET_SUCCESS;
	}
	static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	block_dev_desc_t *mmc_dev;
	struct mmc *mmc;

	mmc = init_mmc_device(curr_device, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	mmc_dev = mmc_get_dev(curr_device);
	if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
	print_part(mmc_dev);
	return CMD_RET_SUCCESS;
	}

	puts("get mmc type error!\n");
	return CMD_RET_FAILURE;
	}
	static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	int dev, part = 0, ret;
	struct mmc *mmc;

	if (argc == 1) {
	dev = curr_device;
	} else if (argc == 2) {
	dev = simple_strtoul(argv[1], NULL, 10);
	} else if (argc == 3) {
	dev = (int)simple_strtoul(argv[1], NULL, 10);
	part = (int)simple_strtoul(argv[2], NULL, 10);
	if (part > PART_ACCESS_MASK) {
	printf("#part_num shouldn't be larger than %d\n",
	PART_ACCESS_MASK);
	return CMD_RET_FAILURE;
	}
	} else {
	return CMD_RET_USAGE;
	}

	mmc = init_mmc_device(dev, true);
	if (!mmc)
	return CMD_RET_FAILURE;

	ret = mmc_select_hwpart(dev, part);
	printf("switch to partitions #%d, %s\n",
	part, (!ret) ? "OK" : "ERROR");
	if (ret)
	return 1;

	curr_device = dev;
	if (mmc->part_config == MMCPART_NOAVAILABLE)
	printf("mmc%d is current device\n", curr_device);
	else
	printf("mmc%d(part %d) is current device\n",
	curr_device, mmc->part_num);

	return CMD_RET_SUCCESS;
	}
	static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	print_mmc_devices('\n');
	return CMD_RET_SUCCESS;
	}
	#ifdef CONFIG_SUPPORT_EMMC_BOOT
	static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	int dev;
	struct mmc *mmc;
	u8 width, reset, mode;

	if (argc != 5)
	return CMD_RET_USAGE;
	dev = simple_strtoul(argv[1], NULL, 10);
	width = simple_strtoul(argv[2], NULL, 10);
	reset = simple_strtoul(argv[3], NULL, 10);
	mode = simple_strtoul(argv[4], NULL, 10);

	mmc = init_mmc_device(dev, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	if (IS_SD(mmc)) {
	puts("BOOT_BUS_WIDTH only exists on eMMC\n");
	return CMD_RET_FAILURE;
	}

	/* acknowledge to be sent during boot operation */
	return mmc_set_boot_bus_width(mmc, width, reset, mode);
	}
	static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	int dev;
	struct mmc *mmc;
	u32 bootsize, rpmbsize;

	if (argc != 4)
	return CMD_RET_USAGE;
	dev = simple_strtoul(argv[1], NULL, 10);
	bootsize = simple_strtoul(argv[2], NULL, 10);
	rpmbsize = simple_strtoul(argv[3], NULL, 10);

	mmc = init_mmc_device(dev, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	if (IS_SD(mmc)) {
	printf("It is not a EMMC device\n");
	return CMD_RET_FAILURE;
	}

	if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
	printf("EMMC boot partition Size change Failed.\n");
	return CMD_RET_FAILURE;
	}

	printf("EMMC boot partition Size %d MB\n", bootsize);
	printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
	return CMD_RET_SUCCESS;
	}
	static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	int dev;
	struct mmc *mmc;
	u8 ack, part_num, access;

	if (argc != 5)
	return CMD_RET_USAGE;

	dev = simple_strtoul(argv[1], NULL, 10);
	ack = simple_strtoul(argv[2], NULL, 10);
	part_num = simple_strtoul(argv[3], NULL, 10);
	access = simple_strtoul(argv[4], NULL, 10);

	mmc = init_mmc_device(dev, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	if (IS_SD(mmc)) {
	puts("PARTITION_CONFIG only exists on eMMC\n");
	return CMD_RET_FAILURE;
	}

	/* acknowledge to be sent during boot operation */
	return mmc_set_part_conf(mmc, ack, part_num, access);
	}
	static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	int dev;
	struct mmc *mmc;
	u8 enable;

	/*
	* Set the RST_n_ENABLE bit of RST_n_FUNCTION
	* The only valid values are 0x0, 0x1 and 0x2 and writing
	* a value of 0x1 or 0x2 sets the value permanently.
	*/
	if (argc != 3)
	return CMD_RET_USAGE;

	dev = simple_strtoul(argv[1], NULL, 10);
	enable = simple_strtoul(argv[2], NULL, 10);

	if (enable > 2 \|\| enable < 0) {
	puts("Invalid RST_n_ENABLE value\n");
	return CMD_RET_USAGE;
	}

	mmc = init_mmc_device(dev, false);
	if (!mmc)
	return CMD_RET_FAILURE;

	if (IS_SD(mmc)) {
	puts("RST_n_FUNCTION only exists on eMMC\n");
	return CMD_RET_FAILURE;
	}

	return mmc_set_rst_n_function(mmc, enable);
	}
	#endif
	static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
	int argc, char * const argv[])
	{
	struct mmc *mmc;
	u32 val;
	int ret;

	if (argc != 2)
	return CMD_RET_USAGE;
	val = simple_strtoul(argv[2], NULL, 16);

	mmc = find_mmc_device(curr_device);
	if (!mmc) {
	printf("no mmc device at slot %x\n", curr_device);
	return CMD_RET_FAILURE;
	}
	ret = mmc_set_dsr(mmc, val);
	printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
	if (!ret) {
	mmc->has_init = 0;
	if (mmc_init(mmc))
	return CMD_RET_FAILURE;
	else
	return CMD_RET_SUCCESS;
	}
	return ret;
	}

	static cmd_tbl_t cmd_mmc[] = {
	U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
	U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
	U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
	U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
	U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
	U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
	U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
	U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
	#ifdef CONFIG_SUPPORT_EMMC_BOOT
	U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
	U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
	U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
	U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
	#endif
	#ifdef CONFIG_SUPPORT_EMMC_RPMB
	U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
	#endif
	U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
	};

	static int do_mmcops(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	{
	cmd_tbl_t *cp;

	cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));

	/* Drop the mmc command */
	argc--;
	argv++;

	if (cp == NULL \|\| argc > cp->maxargs)
	return CMD_RET_USAGE;
	if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
	return CMD_RET_SUCCESS;

	if (curr_device < 0) {
	if (get_mmc_num() > 0) {
	curr_device = 0;
	} else {
	puts("No MMC device available\n");
	return CMD_RET_FAILURE;
	}
	}
	return cp->cmd(cmdtp, flag, argc, argv);
	}

	U_BOOT_CMD(
	mmc, 7, 1, do_mmcops,
	"MMC sub system",
	"info - display info of the current MMC device\n"
	"mmc read addr blk# cnt\n"
	"mmc write addr blk# cnt\n"
	"mmc erase blk# cnt\n"
	"mmc rescan\n"
	"mmc part - lists available partition on current mmc device\n"
	"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
	"mmc list - lists available devices\n"
	#ifdef CONFIG_SUPPORT_EMMC_BOOT
	"mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
	" - Set the BOOT_BUS_WIDTH field of the specified device\n"
	"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
	" - Change sizes of boot and RPMB partitions of specified device\n"
	"mmc partconf dev boot_ack boot_partition partition_access\n"
	" - Change the bits of the PARTITION_CONFIG field of the specified device\n"
	"mmc rst-function dev value\n"
	" - Change the RST_n_FUNCTION field of the specified device\n"
	" WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
	#endif
	#ifdef CONFIG_SUPPORT_EMMC_RPMB
	"mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
	"mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
	"mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
	"mmc rpmb counter - read the value of the write counter\n"
	#endif
	"mmc setdsr <value> - set DSR register value\n"
	);

	/* Old command kept for compatibility. Same as 'mmc info' */
	U_BOOT_CMD(
	mmcinfo, 1, 0, do_mmcinfo,
	"display MMC info",
	"- display info of the current MMC device"
	);

	#endif /* !CONFIG_GENERIC_MMC */