[coreboot-gerrit] [S] Change in coreboot[main]: mb/google/brox/jubilant: Modify start-up timing for WWAN RW101R-GL

[Ren Kuo (Code Review)]

Attention is currently required from: Karthik Ramasubramanian, Kenneth Chan.

Ren Kuo has posted comments on this change by Ren Kuo. ( https://review.coreboot.org/c/coreboot/+/84413?usp=email )

Change subject: mb/google/brox/jubilant: Modify start-up timing for WWAN RW101R-GL
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Patch Set 2:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/84413/comment/51d30454_6c070f77?usp... :
PS1, Line 10: PWR_EN
            : FCPO#
            : RESET#
> Are there any delays required between each signal?

Yes.the WWAN module datasheet is in the b:349698817
PWR_EN   H       H
FCPO#    H       H
RESET#   L  20ms H

The PWR_EN and FCPO# from low to high in the same time and then have a 20ms delay 
to set RESET# from low to high