[sw] polling in ROM
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@moidx is already working on this.
Since Apr 20, 2021.
Component:Software
Earlgrey-PROD Candidate
Hotlist:Software
Priority:P2
SW:ROM
Type:FutureRelease
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Description
Certain setup routines (for example sram / flash scramble key request) require the ROM to make a hardware request and poll for its completion. Polling in ROM however, can be bad if the hardware underneath failed and the ROM just never gets out of the loop.
As a result, we should think a bit about what kind of polling-timeout scheme we want in ROM and how that should terminate in the event of a failure.
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