mb/system76/darp7: Add System76 Darter Pro 7

https://tech-docs.system76.com/models/darp7/README.html

Tested with TianoCore (UefiPayloadPkg).

Working:

- PS/2 keyboard, touchpad
- Both DIMM slots
- M.2 NVMe SSD
- M.2 SATA SSD
- MicroSD card reader
- All USB ports
- USB-PD
- Webcam
- Ethernet
- WiFi/Bluetooth
- Integrated graphics using Intel GOP driver
- HDMI output
- DP over USB-C output
- Internal microphone
- Internal speakers
- Combined 3.5mm headphone/microphone jack
- S0ix suspend*
- Booting to Ubuntu Linux 21.04 and Windows 10
- Flashing with flashrom

Not working:

- S0ix when a device is attached to the TBT port

Not tested:

- Thunderbolt functionality

Change-Id: I80e5c5375f9d3881fc89a45a91ba68ed2e104a93
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52349
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 55 insertions, 0 deletions

diff --git a/src/mainboard/system76/darp7/acpi/mainboard.asl b/src/mainboard/system76/darp7/acpi/mainboard.asl
new file mode 100644
index 0000000000..4675bc94b8
--- /dev/null
+++ b/src/mainboard/system76/darp7/acpi/mainboard.asl
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#define EC_GPE_SCI 0x6E
+#define EC_GPE_SWI 0x6B
+#include <ec/system76/ec/acpi/ec.asl>
+
+Scope (\_SB) {
+	#include "sleep.asl"
+}
diff --git a/src/mainboard/system76/darp7/acpi/sleep.asl b/src/mainboard/system76/darp7/acpi/sleep.asl
new file mode 100644
index 0000000000..83888f3e59
--- /dev/null
+++ b/src/mainboard/system76/darp7/acpi/sleep.asl
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <intelblocks/gpio.h>
+
+Method (PGPM, 1, Serialized)
+{
+	For (Local0 = 0, Local0 < 6, Local0++)
+	{
+		\_SB.PCI0.CGPM (Local0, Arg0)
+	}
+}
+
+/*
+ * Method called from _PTS prior to system sleep state entry
+ * Enables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MPTS, 1, Serialized)
+{
+	\_SB.PCI0.LPCB.EC0.PTS (Arg0)
+	PGPM (MISCCFG_GPIO_PM_CONFIG_BITS)
+}
+
+/*
+ * Method called from _WAK prior to system sleep state wakeup
+ * Disables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MWAK, 1, Serialized)
+{
+	PGPM (0)
+	\_SB.PCI0.LPCB.EC0.WAK (Arg0)
+}
+
+/*
+ * S0ix Entry/Exit Notifications
+ * Called from \_SB.PEPD._DSM
+ */
+Method (MS0X, 1, Serialized)
+{
+	If (Arg0 == 1) {
+		/* S0ix Entry */
+		PGPM (MISCCFG_GPIO_PM_CONFIG_BITS)
+	} Else {
+		/* S0ix Exit */
+		PGPM (0)
+	}
+}