intel/fsp_baytrail: Enable LPSS in ACPI mode

This change fixes LPSS ACPI mode. Previously, enabling ACPI mode would
result in unusable devices, as the resources were set to 0 and the devices
were disabled.
lpss.c was copied from intel/baytrail with a few minor adjustment for the
different config structure.

ACPI mode requires setting PcdLpssSioEnablePciMode==LPSS_PCI_MODE_DISABLE
and applying the patch that disables clearing gnvs.
https://review.coreboot.org/#/c/14040/

This doesn't handle the case where the FSP has PcdLpssSioEnablePciMode
set to disable and the devicetree set to default.

Change-Id: I12fffea3820ed948defe7a4f11af6b6363402560
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Reviewed-on: https://review.coreboot.org/14042
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

0 files changed, 0 insertions, 0 deletions