Merge changes from topic "topics/fwu_metadata_v2_migration" into integration

* changes:
style(fwu): change the metadata fields to align with specification
style(partition): use GUID values for G

Merge changes from topic "topics/fwu_metadata_v2_migration" into integration

* changes:
style(fwu): change the metadata fields to align with specification
style(partition): use GUID values for GPT partition fields
feat(st): add logic to boot the platform from an alternate bank
feat(st): add a function to clear the FWU trial state counter
feat(fwu): add a function to obtain an alternate FWU bank to boot
feat(fwu): add some sanity checks for the FWU metadata
feat(fwu): modify the check for getting the FWU bank's state
feat(st): get the state of the active bank directly
feat(fwu): add a config flag for including image info in the FWU metadata
feat(fwu): migrate FWU metadata structure to version 2
feat(fwu): document the config flag for including image info in the FWU metadata
feat(fwu): update the URL links for the FWU specification

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feat(fwu): add a function to obtain an alternate FWU bank to boot

Add a function fwu_get_alternate_boot_bank() to return a valid bank to
boot from. This function can be called by a platform to get a

feat(fwu): add a function to obtain an alternate FWU bank to boot

Add a function fwu_get_alternate_boot_bank() to return a valid bank to
boot from. This function can be called by a platform to get an
alternate bank to try to boot the platform in the unlikely scenario of
the active bank being in an invalid state, or if the number of times
the platform boots in trial state exceeds a pre-set count.

Change-Id: I4bcd88e68e334c452882255bf028e01b090369d1
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>

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feat(fwu): modify the check for getting the FWU bank's state

The version 2 of the FWU metadata structure has a field bank_state in
the top level of the structure which can be used to check if a give

feat(fwu): modify the check for getting the FWU bank's state

The version 2 of the FWU metadata structure has a field bank_state in
the top level of the structure which can be used to check if a given
bank is in the either of Trial State, Accepted State, or in an Invalid
State. This is different from the binary states of Valid/Accepted
States that the bank could be in, as defined in the earlier version of
the specification.

Replace the fwu_is_trial_run_state() API with
fwu_get_active_bank_state() to get the state the current active bank
is in. The value returned by this API is then used by the caller to
take appropriate action.

Change-Id: I764f486840a3713bfe5f8e03d0634bfe09b23590
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>

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feat(fwu): migrate FWU metadata structure to version 2

The latest version of the FWU specification [1] has changes to the
metadata structure. This is version 2 of the structure.

Primary changes inc

feat(fwu): migrate FWU metadata structure to version 2

The latest version of the FWU specification [1] has changes to the
metadata structure. This is version 2 of the structure.

Primary changes include
- bank_state field in the top level structure
- Total metadata size in the top level structure
- Image description structures now optional
- Number of banks and images per bank values part of the structure

Make changes to the structure to align with version 2 of the structure
defined in the specification. These changes also remove support for
version 1 of the metadata structure.

[1] - https://developer.arm.com/documentation/den0118/latest/

Change-Id: I84b4e742e463cae92375dde8b4603b4a581d62d8
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>

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Merge changes from topic "fwu-on-stm32mp1" into integration

* changes:
feat(stm32mp1): add support for building the FWU feature
feat(stm32mp1): add logic to pass the boot index to the Update Age

Merge changes from topic "fwu-on-stm32mp1" into integration

* changes:
feat(stm32mp1): add support for building the FWU feature
feat(stm32mp1): add logic to pass the boot index to the Update Agent
feat(stm32mp1): add support for reading the metadata partition
feat(stm32mp1): add logic to select the images to be booted
feat(stm32mp1): add GUID's for identifying firmware images to be booted
feat(stm32mp1): add GUID values for updatable images
feat(fwu): add platform hook for getting the boot index
feat(fwu): simplify the assert to check for fwu init
feat(fwu): add a function to pass metadata structure to platforms
feat(partition): add a function to identify a partition by GUID
feat(partition): copy the partition GUID into the partition structure
feat(partition): make provision to store partition GUID value
feat(partition): cleanup partition and gpt headers
feat(fwu): add basic definitions for GUID handling
feat(fwu): pass a const metadata structure to platform routines
build(changelog): add a valid scope for partition code

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feat(fwu): add a function to pass metadata structure to platforms

Add a helper function to pass the metadata structure to the
platforms. Platforms can then read the metadata structure and pass the
b

feat(fwu): add a function to pass metadata structure to platforms

Add a helper function to pass the metadata structure to the
platforms. Platforms can then read the metadata structure and pass the
boot index value, i.e. the bank(partition) from which the firmware
images were booted, to the Update Agent.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Change-Id: I571179b9baa0fbc4d0f08d7a6e3b50c0c7165c5c

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Merge changes from topic "fw-update-2" into integration

* changes:
feat(sw_crc32): add software CRC32 support
refactor(hw_crc32): renamed hw_crc32 to tf_crc32
feat(fwu): avoid booting with an

Merge changes from topic "fw-update-2" into integration

* changes:
feat(sw_crc32): add software CRC32 support
refactor(hw_crc32): renamed hw_crc32 to tf_crc32
feat(fwu): avoid booting with an alternate boot source
docs(fwu): add firmware update documentation
feat(fwu): avoid NV counter upgrade in trial run state
feat(plat/arm): add FWU support in Arm platforms
feat(fwu): initialize FWU driver in BL2
feat(fwu): add FWU driver
feat(fwu): introduce FWU platform-specific functions declarations
docs(fwu_metadata): add FWU metadata build options
feat(fwu_metadata): add FWU metadata header and build options

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feat(fwu): add FWU driver

Implemented FWU metadata load and verification APIs.
Also, exported below APIs to the platform:
1. fwu_init - Load FWU metadata in a structure. Also, set the
address

feat(fwu): add FWU driver

Implemented FWU metadata load and verification APIs.
Also, exported below APIs to the platform:
1. fwu_init - Load FWU metadata in a structure. Also, set the
addresses of updated components in I/O policy
2. fwu_is_trial_run_state - To detect trial run or regular run
state

Change-Id: I67eeabb52d9275ac83be635306997b7c353727cd
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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