1 files changed, 94 insertions, 0 deletions
diff --git a/doc/usage/cmd/armffa.rst b/doc/usage/cmd/armffa.rst
new file mode 100644
index 0000000000..13fa90c129
--- /dev/null
+++ b/doc/usage/cmd/armffa.rst
@@ -0,0 +1,94 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+
+armffa command
+==============
+
+Synopsis
+--------
+
+::
+
+   armffa [sub-command] [arguments]
+
+   sub-commands:
+
+        getpart [partition UUID]
+
+            lists the partition(s) info
+
+        ping [partition ID]
+
+            sends a data pattern to the specified partition
+
+        devlist
+
+            displays information about the FF-A device/driver
+
+Description
+-----------
+
+armffa is a command showcasing how to use the FF-A bus and how to invoke its operations.
+
+This provides a guidance to the client developers on how to call the FF-A bus interfaces.
+
+The command also allows to gather secure partitions information and ping these  partitions.
+
+The command is also helpful in testing the communication with secure partitions.
+
+Example
+-------
+
+The following examples are run on Corstone-1000 platform.
+
+* ping
+
+::
+
+   corstone1000# armffa ping 0x8003
+   SP response:
+   [LSB]
+   fffffffe
+   0
+   0
+   0
+   0
+
+* ping (failure case)
+
+::
+
+   corstone1000# armffa ping 0
+   Sending direct request error (-22)
+
+* getpart
+
+::
+
+   corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd722d
+   Partition: id = 8003 , exec_ctxt 1 , properties 3
+
+* getpart (failure case)
+
+::
+
+   corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd7221
+   INVALID_PARAMETERS: Unrecognized UUID
+   Failure in querying partitions count (error code: -22)
+
+* devlist
+
+::
+
+   corstone1000# armffa devlist
+   device name arm_ffa, dev 00000000fdf41c30, driver name arm_ffa, ops 00000000fffc0e98
+
+Configuration
+-------------
+
+The command is available if CONFIG_CMD_ARMFFA=y and CONFIG_ARM_FFA_TRANSPORT=y.
+
+Return value
+------------
+
+The return value $? is 0 (true) on success, 1 (false) on failure.