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authorMichael Walle <michael@walle.cc>2021-09-29 14:39:13 +0300
committerPriyanka Jain <priyanka.jain@nxp.com>2021-11-09 12:20:21 +0300
commitcbdc4c974fbd884c40b7923d9f5f9d0d165d4268 (patch)
treef16f0a5eb05fe52ab37f99eef0ce947636ef1c50 /doc/board
parentf06add11f073b0a6cffff6c4c3aa4c91378c035b (diff)
downloadu-boot-cbdc4c974fbd884c40b7923d9f5f9d0d165d4268.tar.xz
board: sl28: add update image documentation
Document the update image and how to use the EFI UpdateCapsule. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'doc/board')
-rw-r--r--doc/board/kontron/sl28.rst15
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/board/kontron/sl28.rst b/doc/board/kontron/sl28.rst
index 07431986d8..c7b18bed10 100644
--- a/doc/board/kontron/sl28.rst
+++ b/doc/board/kontron/sl28.rst
@@ -52,6 +52,21 @@ Disable the builtin watchdog
- power-cycle the board
+Update image
+------------
+
+After the build finished, there will be an update image called
+u-boot.update. This can either be used in the DFU mode (which isn't
+supported yet) or encapsulated in an EFI UpdateCapsule.
+
+To build the capsule use the following command
+
+ $ tools/mkeficapsule -f u-boot.update -i 1 UpdateUboot
+
+Afterward you can copy this file to your ESP into the /EFI/UpdateCapsule/
+folder. On the next EFI boot this will automatically update your
+bootloader.
+
Useful I2C tricks
-----------------