[Crypto] CL driver deduplication
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@pamaury is already working on this.
Since Nov 4, 2025.
Hotlist:Security
Hotlist:Software
SW:cryptolib
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Description
### Description
We have drivers for crypto HW in:
- [/device/silicon_creator/lib/drivers](https://github.com/lowRISC/opentitan/tree/master/sw/device/silicon_creator/lib/drivers) for ROM and ROM_EXT and
- [/device/lib/crypto/drivers](https://github.com/lowRISC/opentitan/tree/master/sw/device/lib/crypto/drivers) for owner stage SW.
We should avoid duplication to ensure latest versions on both uses.
Deduplication will require care when freezing ROM or ROM_EXT and continuing SW development to make sure testing uses the frozen version of the drivers in ROM, or ROM_EXT (as applicable).
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
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