2 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/barebox/barebox,environment.rst b/Documentation/devicetree/bindings/barebox/barebox,environment.rst
index 8a57bf1add..40239f424a 100644
--- a/Documentation/devicetree/bindings/barebox/barebox,environment.rst
+++ b/Documentation/devicetree/bindings/barebox/barebox,environment.rst
@@ -23,6 +23,9 @@ the path to the environment. Supported values for <type>:
   be the label for MTD partitions, the number for DOS
   partitions (beginning with 0) or the name for GPT partitions.
 
+If the *environmnet* is located in a GPT partition, use
+``6C3737F2-07F8-45D1-AD45-15D260AAB24D`` as partition type GUID.
+
 The file-path is the name of a file located in a FAT filesystem on the
 device named in device-path.  This filesystem will be mounted and the
 environment loaded from the file's location in the directory tree.
diff --git a/Documentation/devicetree/index.rst b/Documentation/devicetree/index.rst
index 36fa69058d..f85ce6608d 100644
--- a/Documentation/devicetree/index.rst
+++ b/Documentation/devicetree/index.rst
@@ -151,3 +151,25 @@ Contents:
    bindings/regulator/*
    bindings/rtc/*
    bindings/watchdog/*
+
+Automatic Boot Argument Fixups to the Devicetree
+------------------------------------------------
+
+barebox automatically fixes up some boot and system information in the device tree.
+
+In the device tree root, barebox fixes up
+
+ * serial-number (if available)
+ * machine compatible (if overridden)
+
+In the ``chosen``-node, barebox fixes up
+
+ * barebox-version
+ * reset-source
+ * reset-source-instance (if available)
+ * reset-source-device (node-path, only if available)
+ * bootsource
+ * boot-hartid (only on RISC-V)
+
+These values can be read from the booted linux system in ``/proc/device-tree/``
+or ``/sys/firmware/devicetree/base``.