1 files changed, 180 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/acpi/dptf/cpu.asl b/src/soc/intel/baytrail/acpi/dptf/cpu.asl
new file mode 100644
index 0000000000..6e6c7921a0
--- /dev/null
+++ b/src/soc/intel/baytrail/acpi/dptf/cpu.asl
@@ -0,0 +1,180 @@
+External (\_PR.CPU0._TSS, MethodObj)
+External (\_PR.CPU0._TPC, MethodObj)
+External (\_PR.CPU0._PTC, PkgObj)
+External (\_PR.CPU0._TSD, PkgObj)
+External (\_PR.CPU0._PPC, MethodObj)
+External (\_PR.CPU0._PSS, MethodObj)
+
+Device (TCPU)
+{
+	Name (_HID, EISAID ("INT3401"))
+	Name (_UID, 0)
+	Name (CTYP, 0) /* Passive Cooling by default */
+
+	Method (_STA)
+	{
+		If (LEqual (\DPTE, One)) {
+			Return (0xF)
+		} Else {
+			Return (0x0)
+		}
+	}
+
+	/*
+	 * Processor Throttling Controls
+	 */
+
+	Method (_TSS)
+	{
+		If (CondRefOf (\_PR.CPU0._TSS)) {
+			Return (\_PR.CPU0._TSS)
+		} Else {
+			Return (Package ()
+			{
+				Package () { 0, 0, 0, 0, 0 }
+			})
+		}
+	}
+
+	Method (_TPC)
+	{
+		If (CondRefOf (\_PR.CPU0._TPC)) {
+			Return (\_PR.CPU0._TPC)
+		} Else {
+			Return (0)
+		}
+	}
+
+	Method (_PTC)
+	{
+		If (CondRefOf (\_PR.CPU0._PTC)) {
+			Return (\_PR.CPU0._PTC)
+		} Else {
+			Return (Package ()
+			{
+				Buffer () { 0 },
+				Buffer () { 0 }
+			})
+		}
+	}
+
+	Method (_TSD)
+	{
+		If (CondRefOf (\_PR.CPU0._TSD)) {
+			Return (\_PR.CPU0._TSD)
+		} Else {
+			Return (Package ()
+			{
+				Package () { 5, 0, 0, 0, 0 }
+			})
+		}
+	}
+
+	Method (_TDL)
+	{
+		If (CondRefOf (\_PR.CPU0._TSS)) {
+			Store (SizeOf (\_PR.CPU0._TSS ()), Local0)
+			Decrement (Local0)
+			Return (Local0)
+		} Else {
+			Return (0)
+		}
+	}
+
+	/*
+	 * Processor Performance Control
+	 */
+
+	Method (_PPC)
+	{
+		If (CondRefOf (\_PR.CPU0._PPC)) {
+			Return (\_PR.CPU0._PPC)
+		} Else {
+			Return (0)
+		}
+	}
+
+	Method (SPPC, 1)
+	{
+		Store (Arg0, \PPCM)
+
+		/* Notify OS to re-read _PPC limit on each CPU */
+		\PPCN ()
+	}
+
+	Method (_PSS)
+	{
+		If (CondRefOf (\_PR.CPU0._PSS)) {
+			Return (\_PR.CPU0._PSS)
+		} Else {
+			Return (Package ()
+			{
+				Package () { 0, 0, 0, 0, 0, 0 }
+			})
+		}
+	}
+
+	Method (_PDL)
+	{
+		If (CondRefOf (\_PR.CPU0._PSS)) {
+			Store (SizeOf (\_PR.CPU0._PSS ()), Local0)
+			Decrement (Local0)
+			Return (Local0)
+		} Else {
+			Return (0)
+		}
+	}
+
+	/*
+	 * DPTF
+	 */
+
+	/* Convert from Degrees C to 1/10 Kelvin for ACPI */
+	Method (CTOK, 1) {
+		/* 10th of Degrees C */
+		Multiply (Arg0, 10, Local0)
+
+		/* Convert to Kelvin */
+		Add (Local0, 2732, Local0)
+
+		Return (Local0)
+	}
+
+	/* Critical temperature from NVS */
+	Method (_CRT, 0, Serialized)
+	{
+		Return (CTOK (\TCRT))
+	}
+
+	/* Hot temperature is 3 less than critical temperature */
+	Method (_HOT, 0, Serialized)
+	{
+		Return (CTOK (Subtract (\TCRT, 3)))
+	}
+
+	Method (_PSV, 0, Serialized)
+	{
+		If (CTYP) {
+			Return (CTOK (\TACT))
+		} Else {
+			Return (CTOK (\TPSV))
+		}
+	}
+
+	/* Set Cooling Policy
+	 *   Arg0 - Cooling policy mode, 1=active, 0=passive
+	 *   Arg1 - Acoustic Limit
+	 *   Arg2 - Power Limit
+	 */
+	Method (_SCP, 3, Serialized)
+	{
+		If (LEqual (Arg0, 0)) {
+			Store (0, CTYP)
+		} Else {
+			Store (1, CTYP)
+		}
+
+		/* DPTF Thermal Trip Points Changed Event */
+		Notify (TCPU, 0x91)
+	}
+}