[coreboot-gerrit] Change in coreboot[master]: drivers/intel/usb4: Add driver for USB4 retimer device

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/44918 )

Change subject: drivers/intel/usb4: Add driver for USB4 retimer device
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Patch Set 1:

(1 comment)

https://review.coreboot.org/c/coreboot/+/44918/1/src/drivers/intel/usb4/reti... 
File src/drivers/intel/usb4/retimer/Kconfig:

https://review.coreboot.org/c/coreboot/+/44918/1/src/drivers/intel/usb4/reti... 
PS1, Line 1: RETIMER
> Silly question: What's a retimer in this context? It would be nice to have a help text that explains […]

A retimer retransmits a fresh copy of the signal, by doing CDR and retransmitting the data (i.e., it is protocol-aware), https://www.asteralabs.com/2019/06/26/pci-express-retimers-vs-redrivers-an-e...