sb/intel/wildcatpoint/acpi: Move platform.asl to mainboards

The chipset platform.asl only provided empty _PTS/_WAK stubs and _SWS
methods, which mainboards needing custom sleep/wake behavior (e.g. EC
methods) cannot use. Only 2 of 5 Wildcat Point boards used it. Move the
content to mainboard code and inline the device_nvs and common platform
includes in dsdt.asl to align with other Wildcat Point and Lynx Point
boards. Keeping device NVS in mainboard code also simplifies future
Lynx/Wildcat unification.

Tested with BUILD_TIMELESS=1, Purism Librem 15 v2 remains identical.

Change-Id: I753302a13567efb3b7903364be8cef486d2b76e5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91469
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

src/mainboard/google/auron/acpi/platform.asl

@@ -1,8 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-#include <southbridge/intel/wildcatpoint/acpi/device_nvs.asl>
-#include <southbridge/intel/common/acpi/platform.asl>
-
 /*
  * The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0

src/mainboard/google/auron/dsdt.asl

@@ -11,7 +11,9 @@ DefinitionBlock(
 )
 {
 	#include <acpi/dsdt_top.asl>
-	#include <southbridge/intel/wildcatpoint/acpi/platform.asl>
+	#include <southbridge/intel/wildcatpoint/acpi/device_nvs.asl>
+	#include <southbridge/intel/common/acpi/platform.asl>
+	#include "acpi/platform.asl"
 
 	// Thermal handler
 	#include "acpi/thermal.asl"

src/mainboard/purism/librem_bdw/acpi/platform.asl

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * The _PTS method (Prepare To Sleep) is called before the OS is
+ * entering a sleep state. The sleep state number is passed in Arg0
+ */
+
+Method (_PTS, 1)
+{
+}
+
+/* The _WAK method is called on system wakeup */
+
+Method (_WAK, 1)
+{
+	Return (Package (){ 0, 0 })
+}
+
+Scope (\_SB)
+{
+	Method (_SWS)
+	{
+		/* Index into PM1 for device that caused wake */
+		Return (\PM1I)
+	}
+}
+
+Scope (\_GPE)
+{
+	Method (_SWS)
+	{
+		/* Index into GPE for device that caused wake */
+		Return (\GPEI)
+	}
+}

src/mainboard/purism/librem_bdw/dsdt.asl

@@ -11,7 +11,9 @@ DefinitionBlock(
 )
 {
 	#include <acpi/dsdt_top.asl>
-	#include <southbridge/intel/wildcatpoint/acpi/platform.asl>
+	#include <southbridge/intel/wildcatpoint/acpi/device_nvs.asl>
+	#include <southbridge/intel/common/acpi/platform.asl>
+	#include "acpi/platform.asl"
 	#include <southbridge/intel/wildcatpoint/acpi/globalnvs.asl>
 	#include <cpu/intel/common/acpi/cpu.asl>