[ate] enable (un)packing seed objects into perso TLV blobs #221
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After lowRISC/opentitan#27423, there are two seed types that can be exported from the DUT during personalization: 1. "dev_seed", which is a seed that has a particular data format: https://github.com/lowRISC/opentitan/blob/c4214fe7dfeb5ea3e203d14620bd4af87c451ba3/sw/device/silicon_creator/manuf/base/perso_tlv_data.h#L59 and, 2. a "generic" seed. Both seed types can be represented in the TLV perso blob structure with a simple header that contains the size and type (dev seed or generic), followed by the data bytes. This simplifies the ATE DLL to be able to represent both seed types with the same `seed_t` object type. Signed-off-by: Tim Trippel <[email protected]>
The perso blobs that are RXed/TXed from/to the device during personalization are a maximum size of 5120 (5k) bytes. However, the perso blob that is sent from the test program to the registry may be up to 8192 (8k) bytes. Signed-off-by: Tim Trippel <[email protected]>
There are two different seed objects (dev seed and generic seed) that need to be unpacked/packed into perso blobs during provisioning. This adds support for the latter. Signed-off-by: Tim Trippel <[email protected]>
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moidx
approved these changes
Jun 16, 2025
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There are two different seed objects (dev seed and generic seed) that need to be unpacked/packed into perso blobs during provisioning. This adds support for the latter.