Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Sughosh Ganu <sughosh.ganu@linaro.org> says:

The following patch series adds support for version 2 of the FWU
metadata. The version 2 metadata structure is defined in the latest
revision of the FWU specification [1].

The earlier versions of these patches were migrating to a version 2
only support in U-Boot, similar to TF-A. However, based on feedback
from ST [2], this series has been updated to support both versions. A
platform would still be needed to enable one of the two versions of
metadata through a config symbol.

TF-A has code which reads the FWU metadata and boots the platform from
the active partition. TF-A has decided to migrate the FWU code to a
version 2 only support. These changes have been merged in upstream
TF-A.

These changes have been tested on the ST DK2 board, which uses the GPT
based partitioning scheme. Both V1 and V2 metadata versions have been
tested on the DK2 board.

These changes need to be tested on platforms with MTD partitioned
storage devices.

Make changes to the functions used for generating the DFU's alt
variable so that the FWU image information is obtained from the common
version agnostic structure instead of reading the metadata.

While here, also update the name of the field used for storing the
image GUID in the FWU metadata.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

Information about FWU images on MTD partitions is now stored with the
corresponding driver instead of a global variable. Get this
information from the driver.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

The third argument passed to the function gen_image_alt_info() is not
used and is superfluous. Remove this unused argument from the function
call.

Fixes: 4898679e190 (FWU: Add FWU metadata access driver for MTD storage regions)
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

Support has been added for version 2 of the FWU metadata
structure. Add config symbols to enable either of the two versions.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

With addition of support for version 2 of the FWU metadata structure,
the metadata information is collected into a version agnostic
structure. Make changes to the FWU functions so that the information
that was earlier obtained by reading the metadata structure is now
obtained through this version agnostic structure.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

Support is being added in U-Boot for version 2 of the FWU
metadata. Support for this version is to co-exist with version 1
support. To achieve this, a common, version agnostic structure has
been added to keep information provided by the FWU metadata
structure.

Add API's to handle the version specific FWU metadata fields. The
version agnostic structure gets initialized at boot by reading the FWU
metadata. Updates to the FWU metadata result in the API's getting
called to populate the version specific fields of the strucure, before
the metadata gets written to the storage media.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>

Move snprintf to stdio.h since it is needed by exteranl libraries.

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

The capsule update uses the DFU framework for updating
storage. fwu_get_image_index() currently returns the
image_index calculated by (dfu_alt_num + 1), but this is
different from the image_index in UEFI terminology.

Since capsule update implementation calls dfu_write_by_alt
function, it is better that FWU returns the dfu_alt_num.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>