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| author | Jonathan Humphreys <j-humphreys@ti.com> | 2024-06-14 11:35:28 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-06-18 10:43:29 -0600 |
| commit | cedad0670e5160f82d282e06503f5013f8012424 (patch) | |
| tree | f398c81ad625f3a5cf09824e2803c9410ed3e0b5 /doc/develop | |
| parent | 2c92ec69d162c1ac1a6b6ab25324c0e53b4a6ffe (diff) | |
| download | u-boot-cedad0670e5160f82d282e06503f5013f8012424.tar.gz u-boot-cedad0670e5160f82d282e06503f5013f8012424.tar.bz2 u-boot-cedad0670e5160f82d282e06503f5013f8012424.zip | |
doc: uefi: capsules: Add Capsule Update porting section
Created a capsule update porting section in the documentation that outlines
the steps a board developer must do when porting from an existing reference
board implementation.
In particular, added a big warning that new capsule GUID's need to be
defined.
Signed-off-by: Jonathan Humphreys <j-humphreys@ti.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'doc/develop')
| -rw-r--r-- | doc/develop/uefi/uefi.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/develop/uefi/uefi.rst b/doc/develop/uefi/uefi.rst index 0389b269c0..36ac75278f 100644 --- a/doc/develop/uefi/uefi.rst +++ b/doc/develop/uefi/uefi.rst @@ -631,6 +631,18 @@ where version.dtso looks like:: The properties of image-type-id and image-index must match the value defined in the efi_fw_image array as image_type_id and image_index. +Porting Capsule Updates to new boards +************************************* + +It is important, when using a reference board as a starting point for a custom +board, that certain steps are taken to properly support Capsule Updates. + +Capsule GUIDs need to be unique for each firmware and board. That is, if two +firmwares are built from the same source but result in different binaries +because they are built for different boards, they should have different GUIDs. +Therefore it is important when creating support for a new board, new GUIDs are +defined in the board's header file. *DO NOT* reuse capsule GUIDs. + Executing the boot manager ~~~~~~~~~~~~~~~~~~~~~~~~~~ |