[PATCH] doc: add bootelf command documentation

[Maxim Moskalets]

Signed-off-by: Maxim Moskalets <maximmosk4 at gmail.com>
---
 doc/usage/cmd/bootelf.rst | 52 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 doc/usage/cmd/bootelf.rst

diff --git a/doc/usage/cmd/bootelf.rst b/doc/usage/cmd/bootelf.rst
new file mode 100644
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+.. SPDX-License-Identifier: GPL-2.0+
+.. Copyright 2024, Maxim Moskalets <maximmosk4 at gmail.com>
+
+.. index::
+   single: bootelf (command)
+
+bootelf command
+===============
+
+Synopsis
+--------
+
+::
+
+    bootelf [-p|-s] [-d <fdt_addr>] [<image_addr> [<arg>]...]
+
+Description
+-----------
+
+The *bootelf* command is used to launch a ELF binary at *image_addr*. If
+*image_addr* is not specified, the bootelf command will try to find image in
+*image_load_addr* variable (*CONFIG\_SYS\_LOAD\_ADDR* by default).
+
+Args after *image_addr* will be passed to application in common *argc*, *argv*
+format.
+
+A command sequence to run a ELF image using FDT might look like
+
+::
+
+    load mmc 0:1 ${loadaddr} /kernel.elf
+    load mmc 0:1 ${fdt_addr_r} /soc-board.dtb
+    bootelf -d ${fdt_addr_r} ${loadaddr} ${loadaddr}
+
+image_addr
+    Address of the ELF binary.
+
+fdt_addr
+    Address of the device-tree. This argument in only needed if bootable
+    application uses FDT that requires additional setup (like /memory node).
+
+arg
+    Any text arguments for bootable application. This is usually the address
+    of the device-tree.
+
+Flags:
+
+-p|-s
+    Load ELF image via program headers (-p) or via section headers (-s).
+
+-d
+    Setup FDT by address. Available only if CONFIG_CMD_ELF_FDT_SETUP is enabled.
-- 
2.39.2