mb/up/squared: Make mini PCIe port mode configurable

Add config choice menu and pad configuration to put Mini PCIe port into
mSATA mode.

The vendor firmware's "Chipset->Mini PCIe / mSATA Switch" option has
been used together with the output of inteltool and intel2pm to deduce
the exact pad configuration.

Note: the vendor firmware does not autodetect the mode, and the default
setting for the port is "Mini PCIe".

Tested with Kingston SUV500MS120G mSATA SSD.

Change-Id: Ic2da1dd4252ebb5e373bc65418e321f566d4c10f
Signed-off-by: Reto Buerki <reet@codelabs.ch>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

0 files changed, 0 insertions, 0 deletions