[PATCH v3 12/12] doc: cmd: Document remoteproc usage

[Peng Fan]

Add documentation for rproc cmd usage.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 doc/usage/cmd/rproc.rst | 78 +++++++++++++++++++++++++++++++++++++++++++++++++
 doc/usage/index.rst     |  1 +
 2 files changed, 79 insertions(+)

diff --git a/doc/usage/cmd/rproc.rst b/doc/usage/cmd/rproc.rst
new file mode 100644
index 0000000000000000000000000000000000000000..663c1e3d490baa429e77936dec5f54ac91091ed0
--- /dev/null
+++ b/doc/usage/cmd/rproc.rst
@@ -0,0 +1,78 @@
+.. SPDX-License-Identifier: GPL-2.0+
+   Copyright 2025 NXP
+   Written by Peng Fan <peng.fan at nxp.com>
+
+remoteproc command
+==================
+
+Synopsis
+--------
+
+::
+
+    rproc init <id>
+    rproc list
+    rproc load <id> [addr] [size]
+    rproc start <id>
+    rproc stop <id>
+    rproc reset <id>
+    rproc is_running <id>
+    rproc ping <id>
+
+Description
+-----------
+
+The rproc command provides a generic U-Boot mechanism to manage the Remote
+Processors inside a SoC .
+
+The 'rproc init' command enumerate and initialize the remote processor.
+
+    id
+        remote processor id. if id is not passed, initialize all the
+        remote prcessors
+
+The 'rproc list' list available remote processors.
+
+The 'rproc load' load the remote processor with binary.
+
+    id
+        remote processor id.
+    addr
+        address that image is loaded at.
+    size
+        image size
+
+The 'rproc start' start the remote processor(must be loaded).
+
+    id
+        remote processor id.
+
+The 'rproc stop' stop the remote processor.
+
+    id
+        remote processor id.
+
+The 'rproc reset' reset the remote processor.
+
+    id
+        remote processor id.
+
+The 'rproc is_running' reports if the remote processor is running.
+
+    id
+        remote processor id.
+
+The 'rproc ping' ping the remote processor for communication.
+
+    id
+        remote processor id.
+
+Configuration
+-------------
+
+The rproc command is only available if CONFIG_CMD_REMOTEPROC=y.
+
+.. toctree::
+   :maxdepth: 2
+
+   ../../board/nxp/rproc.rst
diff --git a/doc/usage/index.rst b/doc/usage/index.rst
index 14daa08ca18cf590ef837ae38faf8c6bc85a26b9..31ac3b438a6a0c77f1a1ed2d1d2cc6c05ec90d3f 100644
--- a/doc/usage/index.rst
+++ b/doc/usage/index.rst
@@ -110,6 +110,7 @@ Shell commands
    cmd/read
    cmd/reset
    cmd/rng
+   cmd/rproc
    cmd/saves
    cmd/sb
    cmd/sbi

-- 
2.37.1