X-Git-Url: https://repo.jachan.dev/J-u-boot.git/blobdiff_plain/8436282e24df315a37bb0392fcf6212458239432..ff7bf50b30eb2749023620616d53a28c2b6246ff:/doc/mkeficapsule.1

diff --git a/doc/mkeficapsule.1 b/doc/mkeficapsule.1
index c3d0f21488a..a726149ba2c 100644
--- a/doc/mkeficapsule.1
+++ b/doc/mkeficapsule.1
@@ -10,6 +10,9 @@ mkeficapsule \- Generate EFI capsule file for U-Boot
 .B mkeficapsule
 .RI [ options ] " " [ image-blob ] " " capsule-file
 
+.B mkeficapsule
+.RI guidgen " " [ GUID ] " " DTB " " IMAGE_NAME...
+
 .SH "DESCRIPTION"
 The
 .B mkeficapsule
@@ -42,6 +45,10 @@ multiple binary blobs in a single capsule file.
 This type of image file can be generated by
 .BR mkimage .
 
+mkeficapsule can also be used to simulate the dynamic GUID generation used to
+identify firmware images in capsule updates by providing the namespace guid, dtb
+for the board, and a list of firmware images.
+
 .SH "OPTIONS"
 
 .TP
@@ -117,6 +124,22 @@ at every firmware update.
 .B "-d\fR,\fB --dump_sig"
 Dump signature data into *.p7 file
 
+.SH "GUIDGEN OPTIONS"
+
+.TP
+.B "[GUID]"
+The namespace/salt GUID, by default this is EFI_CAPSULE_NAMESPACE_GUID.
+The format is:
+    xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+
+.TP
+.B DTB
+The device tree blob file for the board.
+
+.TP
+.B IMAGE_NAME...
+The names of the firmware images to generate GUIDs for.
+
 .PP
 .SH FILES
 .TP
@@ -130,4 +153,4 @@ The directory in which all capsule files be placed
 Written by AKASHI Takahiro <takahiro.akashi@linaro.org>
 
 .SH HOMEPAGE
-http://www.denx.de/wiki/U-Boot/WebHome
+http://www.u-boot.org/