platform: ext: common: template: Fix FOTA upgrade #147
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The 31755 changes modified profile_definition from 32 to 48 bytes in the platform/ext/common/template/flash_otp_nv_counters_backend.h file. This change moved fields that are necessary to perform a an image upgrade. The issue is visible only when upgrading from an old image (without the changes) to a new one or vice versa. This means that TF-M 2.1.1 do not allow upgrade/downgrade to TF-M 2.2.0 or newer. This revert the change to allow migration from Zephyr 3.7.1 LTS to newer images like 4.2.0. More details from the change can be visualized in: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/31755 Signed-off-by: BUDKE Gerson Fernando <[email protected]>
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Indeed this change makes sense to have FW update compatible with previous release of immutable BL2. Since recent TF-M moves to this new field size, maybe it would be worth to have a configuration option to allow selecting the older or newer field size. |
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Hi @etienne-lms ,
I'm waiting the outcome of https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/42130. I recommend someone from ST take a look on it. |
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The trusted-firmware-m/31755 changes modified
profile_definitionfrom 32 to 48 bytes in the platform/ext/common/template/flash_otp_nv_counters_backend.h file.This change moved fields that are necessary to perform an image upgrade. The issue is visible only when upgrading from an old image (without the changes) to a new one or vice versa. This means that TF-M 2.1.1 do not allow upgrade/downgrade to/from TF-M 2.2.0 or newer versions.
This revert the change to allow migration from Zephyr 3.7.1 LTS to newer images like 4.2.0.
More details from the change can be visualized in: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/31755
depends on https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/42130