[coreboot-gerrit] Change in coreboot[master]: mb/google/guybrush: Switch from 33MHz to 66MHz SPI Speed

[Furquan Shaikh (Code Review)]

Attention is currently required from: Raul Rangel, Karthik Ramasubramanian, Felix Held.
Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56645 )

Change subject: mb/google/guybrush: Switch from 33MHz to 66MHz SPI Speed
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Patch Set 3:

(1 comment)

File src/mainboard/google/guybrush/variants/baseboard/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/56645/comment/e418ebcc_cd6bec91 
PS3, Line 13: 33M
> yes, i was referring to the 8 dummy cycles for the fast read command that gives the flash more time  […]

Makes sense. Thanks Felix! I think most parts support upto 50MHz for normal speed. It would be good to understand what operations fall under altio to ensure the speed is set correctly for that as well.