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SMBus support on Recovery I/F #266

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rioone2023 opened this issue Feb 7, 2025 · 0 comments
Open

SMBus support on Recovery I/F #266

rioone2023 opened this issue Feb 7, 2025 · 0 comments

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@rioone2023
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PCI-SIG defines the operation of bus with SMBus and I3C mixed
If a component with supporting SMBus only is connected to a bus with SMBus and I3C mixed, it must operate as SMBus protocol.

from PCI Express Base Specification Revision 6.3(https://pcisig.com/specifications)
Image

However, Caliptra's Recovery I/F supports only I3C connection and does not support SMBus. So Recovery I/F does not work on the environment with SMBus and I3C mixed.
Does Caliptra project have a plan to support SMBus on Recovery I/F?

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