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>
Add some sanity checks on the values read from the FWU metadata
structure. This ensures that values in the metadata structure are
inline with certain config symbol values.
Change-Id: Ic4415da9048ac3980f8f811ed7852beb90683f7d
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
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>
The variable is_fwu_initialized was initialized after
plat_fwu_set_images_source() is called.
But some functions called by plat_fwu_set_images_source() for STM32MP1
implementation expect is_fwu_initialized is set to true with asserts.
Rename is_fwu_initialized to is_metadata_initialized, and set it before
plat_fwu_set_images_source() is called.
Change-Id: I17c6ee6293dfa55385b0c859db442647f0bebaed
Signed-off-by: Sebastien Pasdeloup <sebastien.pasdeloup-ext@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Simplify the assert to check if the FWU subsystem has been initialised
in the fwu_is_trial_run_state function.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Change-Id: I428668470ebd4b67e68777a62d5732cb96841ab9
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
Renamed hw_crc32 to tf_crc32 to make the file and function
name more generic so that the same name can be used in upcoming
software CRC32 implementation.
Change-Id: Idff8f70c50ca700a4328a27b49d5e1f14d2095eb
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
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>
Sughosh Ganu
Sebastien Pasdeloup
Manish V Badarkhe