mb/purism/librem_whl: Add new board Librem Mini (WHL-U)

Add new librem_whl baseboard and Librem Mini variant.

Tested with SeaBIOS, Tianocore, and Heads payloads.

All functions working normally except SATA, which is limited
via a FSP UPD to 3Gbps until the correct HSIO PHY settings
can be determined.

https://puri.sm/products/librem-mini/

Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
Change-Id: I36af42766f85eb17f86f6ec9b48b87125fb911e6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40278
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/mainboard/purism/librem_whl/acpi/mainboard.asl b/src/mainboard/purism/librem_whl/acpi/mainboard.asl
new file mode 100644
index 0000000000..0c9a76b168
--- /dev/null
+++ b/src/mainboard/purism/librem_whl/acpi/mainboard.asl
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+Scope (\_SB.PCI0.LPCB)
+{
+	Device (AC)
+	{
+		Name (_HID, "ACPI0003")
+		Name (_PCL, Package () { LPCB })
+		Name (ACFG, One)
+
+		Method (_PSR, 0, NotSerialized)
+		{
+			Return (ACFG)
+		}
+	}
+}