I had a board that used it (see 34947) but unfortunately the board is dead so I can't continue here. Maybe someone with a Lenovo TS P320 or TC M800/M900 (same board) wants to finish this.

Oh :(

There are probably some more boards using those SIO chips. IIRC one of the boards I had on my desk had some Nuvoton SIO with an external SPI flash; probably for firmware. I can have a look tomorrow and if I still have it, it has one of those SIOs and I find some cardboard box it fits into, I could send it to you if you want to port it.
If I don't reply within the next 4 days to this, please poke me again; will be quite busy this week...

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Gerrit-Project: coreboot
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