diff options
Diffstat (limited to 'doc/usage/cmd')
| -rw-r--r-- | doc/usage/cmd/gpt.rst | 5 | ||||
| -rw-r--r-- | doc/usage/cmd/mmc.rst | 26 |
2 files changed, 29 insertions, 2 deletions
diff --git a/doc/usage/cmd/gpt.rst b/doc/usage/cmd/gpt.rst index f6115ecb0e..cbbe44ab58 100644 --- a/doc/usage/cmd/gpt.rst +++ b/doc/usage/cmd/gpt.rst @@ -156,6 +156,7 @@ read', 'gpt swap' and 'gpt rename', you must specify CONFIG_CMD_GPT_RENAME=y. Examples ~~~~~~~~ + Create 6 partitions on a disk:: => setenv gpt_parts 'uuid_disk=bec9fc2a-86c1-483d-8a0e-0109732277d7; @@ -192,10 +193,9 @@ Get the information about the partition named 'rootfs':: Get the list of partition names on the disk:: => gpt enumerate - => echo gpt_partition_list + => echo ${gpt_partition_list} boot rootfs system-data [ext] user modules ramdisk - Get the GUID for a disk:: => gpt guid mmc 0 @@ -209,6 +209,7 @@ Set the bootable flag for the 'boot' partition and clear it for all others:: => gpt set-bootable mmc 0 boot Swap the order of the 'boot' and 'rootfs' partition table entries:: + => gpt setenv mmc 0 rootfs => echo ${gpt_partition_entry} 2 diff --git a/doc/usage/cmd/mmc.rst b/doc/usage/cmd/mmc.rst index 71a0303109..c0924ba576 100644 --- a/doc/usage/cmd/mmc.rst +++ b/doc/usage/cmd/mmc.rst @@ -21,6 +21,7 @@ Synopsis mmc bootpart-resize <dev> <dev part size MB> <RPMB part size MB> mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]] mmc rst-function <dev> <value> + mmc reg read <reg> <offset> [env] Description ----------- @@ -183,6 +184,31 @@ The 'mmc rst-function' command changes the RST_n_FUNCTION field. 0x3 Reserved +The 'mmc reg read <reg> <offset> [env]' reads eMMC card register and +either print it to standard output, or store the value in environment +variable. + +<reg> with +optional offset <offset> into the register array, and print it to +standard output or store it into environment variable [env]. + + reg + cid + The Device IDentification (CID) register. Uses offset. + csd + The Device-Specific Data (CSD) register. Uses offset. + dsr + The driver stage register (DSR). + ocr + The operation conditions register (OCR). + rca + The relative Device address (RCA) register. + extcsd + The Extended CSD register. Uses offset. + offset + For 'cid'/'csd' 128 bit registers '[0..3]' in 32-bit increments. For 'extcsd' 512 bit register '[0..512,all]' in 8-bit increments, or 'all' to read the entire register. + env + Optional environment variable into which 32-bit value read from register should be stored. Examples -------- |