]> git.dujemihanovic.xyz Git - u-boot.git/commitdiff
eMMC: cmd_mmc.c adds the 'rpmb' sub-command for the 'mmc' command
authorPierre Aubert <p.aubert@staubli.com>
Thu, 24 Apr 2014 08:30:08 +0000 (10:30 +0200)
committerPantelis Antoniou <panto@antoniou-consulting.com>
Fri, 23 May 2014 08:53:17 +0000 (11:53 +0300)
This sub-command adds support for the RPMB partition of an eMMC:
* mmc rpmb key <address of the authentication key>
  Programs the authentication key in the eMMC This key can not
  be overwritten.
* mmc rpmb read <address> <block> <#count> [address of key]
  Reads <#count> blocks of 256 bytes in the RPMB partition
  beginning at block number <block>. If the optionnal
  address of the authentication key is provided, the
  Message Authentication Code (MAC) is verified on each
  block.
* mmc rpmb write <address> <block> <#count> <address of key>
  Writes <#count> blocks of 256 bytes in the RPMB partition
  beginning at block number <block>. The datas are signed
  with the key provided.
* mmc rpmb counter
  Returns the 'Write counter' of the RPMB partition.

The sub-command is conditional on compilation flag CONFIG_SUPPORT_EMMC_RPMB

Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
CC: Wolfgang Denk <wd@denx.de>
README
common/cmd_mmc.c

diff --git a/README b/README
index 5f895520e828abc2ecfd0199372fa4187a9da0bf..0bd4069da63a16b01b07e68ca9eed4ed5346c323 100644 (file)
--- a/README
+++ b/README
@@ -1534,6 +1534,16 @@ The following options need to be configured:
                        CONFIG_SH_MMCIF_CLK
                        Define the clock frequency for MMCIF
 
+               CONFIG_GENERIC_MMC
+               Enable the generic MMC driver
+
+               CONFIG_SUPPORT_EMMC_BOOT
+               Enable some additional features of the eMMC boot partitions.
+
+               CONFIG_SUPPORT_EMMC_RPMB
+               Enable the commands for reading, writing and programming the
+               key for the Replay Protection Memory Block partition in eMMC.
+
 - USB Device Firmware Update (DFU) class support:
                CONFIG_DFU_FUNCTION
                This enables the USB portion of the DFU USB class
index c1916c9b56a6456bebb115367308d8e03c5f268a..55af295e1262baeaf8e8a59d3dcf5a8f75ec1db0 100644 (file)
@@ -71,12 +71,6 @@ U_BOOT_CMD(
 );
 #else /* !CONFIG_GENERIC_MMC */
 
-enum mmc_state {
-       MMC_INVALID,
-       MMC_READ,
-       MMC_WRITE,
-       MMC_ERASE,
-};
 static void print_mmcinfo(struct mmc *mmc)
 {
        printf("Device: %s\n", mmc->cfg->name);
@@ -98,7 +92,18 @@ static void print_mmcinfo(struct mmc *mmc)
 
        printf("Bus Width: %d-bit\n", mmc->bus_width);
 }
-
+static struct mmc *init_mmc_device(int dev)
+{
+       struct mmc *mmc;
+       mmc = find_mmc_device(dev);
+       if (!mmc) {
+               printf("no mmc device at slot %x\n", dev);
+               return NULL;
+       }
+       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;
@@ -112,351 +117,546 @@ static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                }
        }
 
-       mmc = find_mmc_device(curr_device);
+       mmc = init_mmc_device(curr_device);
+       if (!mmc)
+               return CMD_RET_FAILURE;
 
-       if (mmc) {
-               mmc_init(mmc);
+       print_mmcinfo(mmc);
+       return CMD_RET_SUCCESS;
+}
 
-               print_mmcinfo(mmc);
-               return 0;
-       } else {
-               printf("no mmc device at slot %x\n", curr_device);
+#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);
 
-U_BOOT_CMD(
-       mmcinfo, 1, 0, do_mmcinfo,
-       "display MMC info",
-       "- display info of the current MMC device"
-);
+       if (argc < 4)
+               return CMD_RET_USAGE;
 
-static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+       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[])
 {
-       enum mmc_state state;
+       u16 blk, cnt;
+       void *addr;
+       int n;
+       void *key_addr;
+       struct mmc *mmc = find_mmc_device(curr_device);
 
-       if (argc < 2)
+       if (argc != 5)
                return CMD_RET_USAGE;
 
-       if (curr_device < 0) {
-               if (get_mmc_num() > 0)
-                       curr_device = 0;
-               else {
-                       puts("No MMC device available\n");
-                       return 1;
-               }
+       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);
+       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);
 
-       if (strcmp(argv[1], "rescan") == 0) {
-               struct mmc *mmc;
+       /* 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
 
-               if (argc != 2)
-                       return CMD_RET_USAGE;
+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;
 
-               mmc = find_mmc_device(curr_device);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", curr_device);
-                       return 1;
-               }
+       if (argc != 4)
+               return CMD_RET_USAGE;
 
-               mmc->has_init = 0;
+       addr = (void *)simple_strtoul(argv[1], NULL, 16);
+       blk = simple_strtoul(argv[2], NULL, 16);
+       cnt = simple_strtoul(argv[3], NULL, 16);
 
-               if (mmc_init(mmc))
-                       return 1;
-               else
-                       return 0;
-       } else if (strcmp(argv[1], "part") == 0) {
-               block_dev_desc_t *mmc_dev;
-               struct mmc *mmc;
+       mmc = init_mmc_device(curr_device);
+       if (!mmc)
+               return CMD_RET_FAILURE;
 
-               if (argc != 2)
-                       return CMD_RET_USAGE;
+       printf("\nMMC read: dev # %d, block # %d, count %d ... ",
+              curr_device, blk, cnt);
 
-               mmc = find_mmc_device(curr_device);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", curr_device);
-                       return 1;
-               }
-               mmc_init(mmc);
-               mmc_dev = mmc_get_dev(curr_device);
-               if (mmc_dev != NULL &&
-                               mmc_dev->type != DEV_TYPE_UNKNOWN) {
-                       print_part(mmc_dev);
-                       return 0;
-               }
+       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");
 
-               puts("get mmc type error!\n");
-               return 1;
-       } else if (strcmp(argv[1], "list") == 0) {
-               if (argc != 2)
-                       return CMD_RET_USAGE;
-               print_mmc_devices('\n');
-               return 0;
-       } else if (strcmp(argv[1], "dev") == 0) {
-               int dev, part = -1;
-               struct mmc *mmc;
-
-               if (argc == 2)
-                       dev = curr_device;
-               else if (argc == 3)
-                       dev = simple_strtoul(argv[2], NULL, 10);
-               else if (argc == 4) {
-                       dev = (int)simple_strtoul(argv[2], NULL, 10);
-                       part = (int)simple_strtoul(argv[3], NULL, 10);
-                       if (part > PART_ACCESS_MASK) {
-                               printf("#part_num shouldn't be larger"
-                                       " than %d\n", PART_ACCESS_MASK);
-                               return 1;
-                       }
-               } else
-                       return CMD_RET_USAGE;
+       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;
 
-               mmc = find_mmc_device(dev);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", dev);
-                       return 1;
-               }
+       if (argc != 4)
+               return CMD_RET_USAGE;
 
-               mmc_init(mmc);
-               if (part != -1) {
-                       int ret;
-                       if (mmc->part_config == MMCPART_NOAVAILABLE) {
-                               printf("Card doesn't support part_switch\n");
-                               return 1;
-                       }
+       addr = (void *)simple_strtoul(argv[1], NULL, 16);
+       blk = simple_strtoul(argv[2], NULL, 16);
+       cnt = simple_strtoul(argv[3], NULL, 16);
 
-                       if (part != mmc->part_num) {
-                               ret = mmc_switch_part(dev, part);
-                               if (!ret)
-                                       mmc->part_num = part;
+       mmc = init_mmc_device(curr_device);
+       if (!mmc)
+               return CMD_RET_FAILURE;
 
-                               printf("switch to partitions #%d, %s\n",
-                                               part, (!ret) ? "OK" : "ERROR");
-                       }
-               }
-               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);
+       printf("\nMMC write: dev # %d, block # %d, count %d ... ",
+              curr_device, blk, cnt);
 
-               return 0;
-#ifdef CONFIG_SUPPORT_EMMC_BOOT
-       } else if (strcmp(argv[1], "partconf") == 0) {
-               int dev;
-               struct mmc *mmc;
-               u8 ack, part_num, access;
-
-               if (argc == 6) {
-                       dev = simple_strtoul(argv[2], NULL, 10);
-                       ack = simple_strtoul(argv[3], NULL, 10);
-                       part_num = simple_strtoul(argv[4], NULL, 10);
-                       access = simple_strtoul(argv[5], NULL, 10);
-               } else {
-                       return CMD_RET_USAGE;
-               }
+       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");
 
-               mmc = find_mmc_device(dev);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", dev);
-                       return 1;
-               }
+       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 (IS_SD(mmc)) {
-                       puts("PARTITION_CONFIG only exists on eMMC\n");
-                       return 1;
-               }
+       if (argc != 3)
+               return CMD_RET_USAGE;
 
-               /* acknowledge to be sent during boot operation */
-               return mmc_set_part_conf(mmc, ack, part_num, access);
-       } else if (strcmp(argv[1], "bootbus") == 0) {
-               int dev;
-               struct mmc *mmc;
-               u8 width, reset, mode;
-
-               if (argc == 6) {
-                       dev = simple_strtoul(argv[2], NULL, 10);
-                       width = simple_strtoul(argv[3], NULL, 10);
-                       reset = simple_strtoul(argv[4], NULL, 10);
-                       mode = simple_strtoul(argv[5], NULL, 10);
-               } else {
-                       return CMD_RET_USAGE;
-               }
+       blk = simple_strtoul(argv[1], NULL, 16);
+       cnt = simple_strtoul(argv[2], NULL, 16);
 
-               mmc = find_mmc_device(dev);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", dev);
-                       return 1;
-               }
+       mmc = init_mmc_device(curr_device);
+       if (!mmc)
+               return CMD_RET_FAILURE;
 
-               if (IS_SD(mmc)) {
-                       puts("BOOT_BUS_WIDTH only exists on eMMC\n");
-                       return 1;
-               }
+       printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
+              curr_device, blk, cnt);
 
-               /* acknowledge to be sent during boot operation */
-               return mmc_set_boot_bus_width(mmc, width, reset, mode);
-       } else if (strcmp(argv[1], "bootpart-resize") == 0) {
-               int dev;
-               struct mmc *mmc;
-               u32 bootsize, rpmbsize;
-
-               if (argc == 5) {
-                       dev = simple_strtoul(argv[2], NULL, 10);
-                       bootsize = simple_strtoul(argv[3], NULL, 10);
-                       rpmbsize = simple_strtoul(argv[4], NULL, 10);
-               } else {
-                       return CMD_RET_USAGE;
-               }
+       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");
 
-               mmc = find_mmc_device(dev);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", dev);
-                       return 1;
-               }
+       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;
 
-               if (IS_SD(mmc)) {
-                       printf("It is not a EMMC device\n");
-                       return 1;
-               }
+       mmc = find_mmc_device(curr_device);
+       if (!mmc) {
+               printf("no mmc device at slot %x\n", curr_device);
+               return CMD_RET_FAILURE;
+       }
 
-               if (0 == mmc_boot_partition_size_change(mmc,
-                                                       bootsize, rpmbsize)) {
-                       printf("EMMC boot partition Size %d MB\n", bootsize);
-                       printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
-                       return 0;
-               } else {
-                       printf("EMMC boot partition Size change Failed.\n");
-                       return 1;
-               }
-       } else if (strcmp(argv[1], "rst-function") == 0) {
-               /*
-                * 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.
-                */
-               int dev;
-               struct mmc *mmc;
-               u8 enable;
-
-               if (argc == 4) {
-                       dev = simple_strtoul(argv[2], NULL, 10);
-                       enable = simple_strtoul(argv[3], NULL, 10);
-               } else {
-                       return CMD_RET_USAGE;
-               }
+       mmc->has_init = 0;
 
-               if (enable > 2 || enable < 0) {
-                       puts("Invalid RST_n_ENABLE value\n");
-                       return CMD_RET_USAGE;
+       if (mmc_init(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);
+       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 = -1;
+       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 = find_mmc_device(dev);
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", dev);
-                       return 1;
+       mmc = init_mmc_device(dev);
+       if (!mmc)
+               return CMD_RET_FAILURE;
+
+       if (part != -1) {
+               int ret;
+               if (mmc->part_config == MMCPART_NOAVAILABLE) {
+                       printf("Card doesn't support part_switch\n");
+                       return CMD_RET_FAILURE;
                }
 
-               if (IS_SD(mmc)) {
-                       puts("RST_n_FUNCTION only exists on eMMC\n");
-                       return 1;
+               if (part != mmc->part_num) {
+                       ret = mmc_switch_part(dev, part);
+                       if (!ret)
+                               mmc->part_num = part;
+
+                       printf("switch to partitions #%d, %s\n",
+                              part, (!ret) ? "OK" : "ERROR");
                }
+       }
+       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 mmc_set_rst_n_function(mmc, enable);
-#endif /* CONFIG_SUPPORT_EMMC_BOOT */
+       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);
+       if (!mmc)
+               return CMD_RET_FAILURE;
+
+       if (IS_SD(mmc)) {
+               puts("BOOT_BUS_WIDTH only exists on eMMC\n");
+               return CMD_RET_FAILURE;
        }
 
-       else if (argc == 3 && strcmp(argv[1], "setdsr") == 0) {
-               struct mmc *mmc = find_mmc_device(curr_device);
-               u32 val = simple_strtoul(argv[2], NULL, 16);
-               int ret;
+       /* 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 (!mmc) {
-                       printf("no mmc device at slot %x\n", curr_device);
-                       return 1;
-               }
-               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 1;
-                       else
-                               return 0;
-               }
-               return ret;
+       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);
+       if (!mmc)
+               return CMD_RET_FAILURE;
+
+       if (IS_SD(mmc)) {
+               printf("It is not a EMMC device\n");
+               return CMD_RET_FAILURE;
        }
 
-       state = MMC_INVALID;
-       if (argc == 5 && strcmp(argv[1], "read") == 0)
-               state = MMC_READ;
-       else if (argc == 5 && strcmp(argv[1], "write") == 0)
-               state = MMC_WRITE;
-       else if (argc == 4 && strcmp(argv[1], "erase") == 0)
-               state = MMC_ERASE;
-
-       if (state != MMC_INVALID) {
-               struct mmc *mmc = find_mmc_device(curr_device);
-               int idx = 2;
-               u32 blk, cnt, n;
-               void *addr;
-
-               if (state != MMC_ERASE) {
-                       addr = (void *)simple_strtoul(argv[idx], NULL, 16);
-                       ++idx;
-               } else
-                       addr = NULL;
-               blk = simple_strtoul(argv[idx], NULL, 16);
-               cnt = simple_strtoul(argv[idx + 1], NULL, 16);
-
-               if (!mmc) {
-                       printf("no mmc device at slot %x\n", curr_device);
-                       return 1;
-               }
+       if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
+               printf("EMMC boot partition Size change Failed.\n");
+               return CMD_RET_FAILURE;
+       }
 
-               printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
-                               argv[1], curr_device, blk, cnt);
+       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;
 
-               mmc_init(mmc);
+       if (argc != 5)
+               return CMD_RET_USAGE;
 
-               if ((state == MMC_WRITE || state == MMC_ERASE)) {
-                       if (mmc_getwp(mmc) == 1) {
-                               printf("Error: card is write protected!\n");
-                               return 1;
-                       }
-               }
+       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);
 
-               switch (state) {
-               case MMC_READ:
-                       n = mmc->block_dev.block_read(curr_device, blk,
-                                                     cnt, addr);
-                       /* flush cache after read */
-                       flush_cache((ulong)addr, cnt * 512); /* FIXME */
-                       break;
-               case MMC_WRITE:
-                       n = mmc->block_dev.block_write(curr_device, blk,
-                                                     cnt, addr);
-                       break;
-               case MMC_ERASE:
-                       n = mmc->block_dev.block_erase(curr_device, blk, cnt);
-                       break;
-               default:
-                       BUG();
-               }
+       mmc = init_mmc_device(dev);
+       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);
+       if (!mmc)
+               return CMD_RET_FAILURE;
+
+       if (IS_SD(mmc)) {
+               puts("RST_n_FUNCTION only exists on eMMC\n");
+               return CMD_RET_FAILURE;
+       }
 
-               printf("%d blocks %s: %s\n",
-                               n, argv[1], (n == cnt) ? "OK" : "ERROR");
-               return (n == cnt) ? 0 : 1;
+       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, 3, 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;
 
-       return CMD_RET_USAGE;
+       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, 6, 1, do_mmcops,
+       mmc, 7, 1, do_mmcops,
        "MMC sub system",
-       "read addr blk# cnt\n"
+       "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"
@@ -474,6 +674,20 @@ U_BOOT_CMD(
        " - 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
-       "mmc setdsr - set DSR register value\n"
+#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 */