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-rw-r--r--doc/usage/mmc.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/usage/mmc.rst b/doc/usage/mmc.rst
index 458c7642c0..f20efe3d70 100644
--- a/doc/usage/mmc.rst
+++ b/doc/usage/mmc.rst
@@ -19,7 +19,7 @@ Synopsis
mmc wp
mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>
mmc bootpart-resize <dev> <dev part size MB> <RPMB part size MB>
- mmc partconf <dev> [boot_ack boot_partition partition_access]
+ mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]
mmc rst-function <dev> <value>
Description
@@ -92,6 +92,8 @@ The 'mmc bootbus' command sets the BOOT_BUS_WIDTH field. (*Refer to eMMC specifi
The 'mmc partconf' command shows or changes PARTITION_CONFIG field.
+ varname
+ When showing the PARTITION_CONFIG, an optional environment variable to store the current boot_partition value into.
boot_ack
boot acknowledge value
boot_partition