lowRISC / lowRISC/opentitan

[dv,pwrmgr] Fix incoming resets

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Component:Darjeeling
Dominant language
SystemVerilog
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Description

### Description

There is a strange wiring of internal_reset_req as an input to the dut. Since this is driven by the DUT, it seems trying to drive it via pwrmgr_if ends up being a NO-OP, and pwrmgr_smoke gets hung waiting for a reset. I vaguely recall this strange configuration was meant as a temporary workaround, but perhaps its time is up?

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Research direction

Trace the internal_reset_req wiring between the DUT and pwrmgr_if, then inspect how pwrmgr_smoke drives it and where the reset wait occurs. Confirm why the drive is a no-op and consider the intended reset path; done means pwrmgr_smoke no longer hangs waiting for a reset.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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