Clean up ACPI:

- unify all iasl related rules into the toplevel Makefile
- build a filesystem standard for ACPI files and use it
- pass ACPI sources through cpp, so constants can be shared
  between C and ACPI more easily
- use cpp's #include instead of ACPI's Include() so cpp gets
  the whole picture

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5094 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

4 files changed, 1281 insertions, 0 deletions

diff --git a/src/mainboard/via/epia-n/acpi/irq_links.asl b/src/mainboard/via/epia-n/acpi/irq_links.asl
new file mode 100644
index 0000000000..fc93e760b5
--- /dev/null
+++ b/src/mainboard/via/epia-n/acpi/irq_links.asl
@@ -0,0 +1,571 @@
+/*
+ * Minimalist ACPI DSDT table for EPIA-N / NL
+ * Basic description of PCI Interrupt Assignments.
+ * This is expected to be included into _SB.PCI0 namespace
+ * (C) Copyright 2009 Jon Harrison <jon.harrison@blueyonder.co.uk>
+ *
+ */
+
+ /* PCI PnP Routing Links */
+
+ /* Define how interrupt Link A is plumbed in */
+ Device (LNKA)
+ {
+	 Name (_HID, EisaId ("PNP0C0F"))
+	 Name (_UID, 0x01)
+ 	 /* Status - always return ready */
+	 Method (_STA, 0, NotSerialized)
+	 {
+	 	/* See If Coreboot has allocated INTA# */
+	 	And (PIRA, 0xF0, Local0)
+		If (LEqual (Local0, 0x00))
+		{
+			Return (0x09)
+		}
+		Else
+		{
+		 	Return (0x0B)
+		}
+	 }
+
+	 Method (_PRS, 0, NotSerialized)
+	 {
+		 Name (BUFA, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, )
+				 {3,4,6,7,10,11,12}
+		 })
+		 Return (BUFA)
+	 }
+
+	 Method (_CRS, 0, NotSerialized)
+	 {
+		 Name (BUFA, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, _Y07)
+			 {}
+		 })
+		 /* Read the Binary Encoded Field and Map this        */
+		 /* onto the bitwise _INT field in the IRQ descriptor */
+		 /* See ACPI Spec for detail of _IRQ Descriptor       */
+         CreateByteField (BUFA, \_SB.PCI0.LNKA._CRS._Y07._INT, IRA1)
+         CreateByteField (BUFA, 0x02, IRA2)
+         Store (0x00, Local3)
+         Store (0x00, Local4)
+         And (PIRA, 0xF0, Local1)
+         ShiftRight (Local1, 0x04, Local1)
+         If (LNotEqual (Local1, 0x00))
+         {
+         	 If (LGreater (Local1, 0x07))
+         	 {
+         		 Subtract (Local1, 0x08, Local2)
+         		 ShiftLeft (One, Local2, Local4)
+         	 }
+         	 Else
+         	 {
+         		 If (LGreater (Local1, 0x00))
+         		 {
+         			 ShiftLeft (One, Local1, Local3)
+         		 }
+         	 }
+
+         	 Store (Local3, IRA1)
+         	 Store (Local4, IRA2)
+         }
+		 Return (BUFA)
+	 }
+
+ 	 /* Set Resources - dummy function to keep Linux ACPI happy
+	  * Linux is more than happy not to tinker with irq
+ 	  * assignments as long as the CRS and STA functions
+ 	  * return good values
+ 	 */
+	 Method (_SRS, 1, NotSerialized) {}
+ 	 /* Disable - Set PnP Routing Reg to 0 */
+ 	 Method (_DIS, 0, NotSerialized )
+	 {
+	 	And (PIRA, 0x0F, PIRA)
+	 }
+ } // End of LNKA
+
+ Device (LNKB)
+ {
+	 Name (_HID, EisaId ("PNP0C0F"))
+	 Name (_UID, 0x02)
+	 Method (_STA, 0, NotSerialized)
+	 {
+	 	/* See If Coreboot has allocated INTB# */
+	 	And (PIBC, 0x0F, Local0)
+		If (LEqual (Local0, 0x00))
+		{
+			Return (0x09)
+		}
+		Else
+		{
+		 	Return (0x0B)
+		}
+	 }
+
+	 Method (_PRS, 0, NotSerialized)
+	 {
+		 Name (BUFB, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, )
+				 {3,4,6,7,10,11,12}
+		 })
+		 Return (BUFB)
+	 }
+
+	 Method (_CRS, 0, NotSerialized)
+	 {
+		 Name (BUFB, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, _Y08)
+			 {}
+		 })
+		 /* Read the Binary Encoded Field and Map this        */
+		 /* onto the bitwise _INT field in the IRQ descriptor */
+		 /* See ACPI Spec for detail of _IRQ Descriptor       */
+         CreateByteField (BUFB, \_SB.PCI0.LNKB._CRS._Y08._INT, IRB1)
+         CreateByteField (BUFB, 0x02, IRB2)
+         Store (0x00, Local3)
+         Store (0x00, Local4)
+         And (PIBC, 0x0F, Local1)
+         If (LNotEqual (Local1, 0x00))
+         {
+         	 If (LGreater (Local1, 0x07))
+         	 {
+         		 Subtract (Local1, 0x08, Local2)
+         		 ShiftLeft (One, Local2, Local4)
+         	 }
+         	 Else
+         	 {
+         		 If (LGreater (Local1, 0x00))
+         		 {
+         			 ShiftLeft (One, Local1, Local3)
+         		 }
+         	 }
+
+         	 Store (Local3, IRB1)
+         	 Store (Local4, IRB2)
+         }
+		 Return (BUFB)
+	 }
+
+ 	 /* Set Resources - dummy function to keep Linux ACPI happy
+	  * Linux is more than happy not to tinker with irq
+ 	  * assignments as long as the CRS and STA functions
+ 	  * return good values
+ 	 */
+	 Method (_SRS, 1, NotSerialized) {}
+ 	 /* Disable - Set PnP Routing Reg to 0 */
+ 	 Method (_DIS, 0, NotSerialized )
+	 {
+	 	And (PIBC, 0xF0, PIBC)
+	 }
+
+ } // End of LNKB
+
+ Device (LNKC)
+ {
+	 Name (_HID, EisaId ("PNP0C0F"))
+	 Name (_UID, 0x03)
+	 Method (_STA, 0, NotSerialized)
+	 {
+	 	/* See If Coreboot has allocated INTC# */
+	 	And (PIBC, 0xF0, Local0)
+		If (LEqual (Local0, 0x00))
+		{
+			Return (0x09)
+		}
+		Else
+		{
+		 	Return (0x0B)
+		}
+	 }
+
+	 Method (_PRS, 0, NotSerialized)
+	 {
+		 Name (BUFC, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, )
+				 {3,4,6,7,10,11,12}
+		 })
+		 Return (BUFC)
+	 }
+
+	 Method (_CRS, 0, NotSerialized)
+	 {
+		 Name (BUFC, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, _Y09)
+			 {}
+		 })
+		 /* Read the Binary Encoded Field and Map this        */
+		 /* onto the bitwise _INT field in the IRQ descriptor */
+		 /* See ACPI Spec for detail of _IRQ Descriptor       */
+         CreateByteField (BUFC, \_SB.PCI0.LNKC._CRS._Y09._INT, IRC1)
+         CreateByteField (BUFC, 0x02, IRC2)
+         Store (0x00, Local3)
+         Store (0x00, Local4)
+         And (PIBC, 0xF0, Local1)
+         ShiftRight (Local1, 0x04, Local1)
+         If (LNotEqual (Local1, 0x00))
+         {
+         	 If (LGreater (Local1, 0x07))
+         	 {
+         		 Subtract (Local1, 0x08, Local2)
+         		 ShiftLeft (One, Local2, Local4)
+         	 }
+         	 Else
+         	 {
+         		 If (LGreater (Local1, 0x00))
+         		 {
+         			 ShiftLeft (One, Local1, Local3)
+         		 }
+         	 }
+
+         	 Store (Local3, IRC1)
+         	 Store (Local4, IRC2)
+         }
+		 Return (BUFC)
+	 }
+
+ 	 /* Set Resources - dummy function to keep Linux ACPI happy
+	  * Linux is more than happy not to tinker with irq
+ 	  * assignments as long as the CRS and STA functions
+ 	  * return good values
+ 	 */
+	 Method (_SRS, 1, NotSerialized) {}
+ 	 /* Disable - Set PnP Routing Reg to 0 */
+ 	 Method (_DIS, 0, NotSerialized )
+	 {
+	 	And (PIBC, 0x0F, PIBC)
+	 }
+
+} // End of LNKC
+
+Device (LNKD)
+{
+	 Name (_HID, EisaId ("PNP0C0F"))
+	 Name (_UID, 0x04)
+	 Method (_STA, 0, NotSerialized)
+	 {
+	 	/* See If Coreboot has allocated INTD# */
+	 	And (PIRD, 0xF0, Local0)
+		If (LEqual (Local0, 0x00))
+		{
+			Return (0x09)
+		}
+		Else
+		{
+		 	Return (0x0B)
+		}
+	 }
+
+	 Method (_PRS, 0, NotSerialized)
+	 {
+		 Name (BUFD, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, )
+				 {3,4,6,7,10,11,12}
+		 })
+		 Return (BUFD)
+	 }
+
+	 Method (_CRS, 0, NotSerialized)
+	 {
+		 Name (BUFD, ResourceTemplate ()
+		 {
+			 IRQ (Level, ActiveLow, Shared, _Y0A)
+			 {}
+		 })
+		 /* Read the Binary Encoded Field and Map this        */
+		 /* onto the bitwise _INT field in the IRQ descriptor */
+		 /* See ACPI Spec for detail of _IRQ Descriptor       */
+         CreateByteField (BUFD, \_SB.PCI0.LNKD._CRS._Y0A._INT, IRD1)
+         CreateByteField (BUFD, 0x02, IRD2)
+         Store (0x00, Local3)
+         Store (0x00, Local4)
+         And (PIRD, 0xF0, Local1)
+         ShiftRight (Local1, 0x04, Local1)
+         If (LNotEqual (Local1, 0x00))
+         {
+         	 If (LGreater (Local1, 0x07))
+         	 {
+         		 Subtract (Local1, 0x08, Local2)
+         		 ShiftLeft (One, Local2, Local4)
+         	 }
+         	 Else
+         	 {
+         		 If (LGreater (Local1, 0x00))
+         		 {
+         			 ShiftLeft (One, Local1, Local3)
+         		 }
+         	 }
+
+         	 Store (Local3, IRD1)
+         	 Store (Local4, IRD2)
+         }
+		 Return (BUFD)
+	 }
+
+ 	 /* Set Resources - dummy function to keep Linux ACPI happy
+	  * Linux is more than happy not to tinker with irq
+ 	  * assignments as long as the CRS and STA functions
+ 	  * return good values
+ 	 */
+	 Method (_SRS, 1, NotSerialized) {}
+ 	 /* Disable - Set PnP Routing Reg to 0 */
+ 	 Method (_DIS, 0, NotSerialized )
+	 {
+	 	And (PIRD, 0x0F, PIRD)
+	 }
+
+} // End of LNKD
+
+
+/* APIC IRQ Links */
+
+Device (ATAI)
+{
+	 Name (_HID, EisaId ("PNP0C0F"))
+	 Name (_UID, 0x05)
+	 Method (_STA, 0, NotSerialized)
+	 {
+	 	/* ATFL == 0x02 if SATA Enabled */
+      	If (LNotEqual (ATFL, 0x02))
+      	{
+			/* Double Check By Reading SATA VID */
+			/* Otherwise Compatibility Mode     */
+        	If (LNotEqual (\_SB.PCI0.SATA.VID, 0x1106))
+          	{
+        	  	Return (0x09)
+          	}
+          	Else
+          	{
+        	  	Return (0x0B)
+          	}
+      	}
+      	Else
+      	{
+			/* Serial ATA Enabled Check if PATA is in */
+			/* Compatibility Mode 					  */
+          	If (LEqual (\_SB.PCI0.PATA.ENAT, 0x0A))
+          	{
+        	  	Return (0x09)
+          	}
+          	Else
+          	{
+        	  	Return (0x0B)
+          	}
+      	}
+	 }
+
+     Method (_PRS, 0, NotSerialized)
+     {
+          Name (ATAN, ResourceTemplate ()
+          {
+              Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, )
+              {
+            	  0x00000014,
+              }
+          })
+		  Return (ATAN)
+	 }
+
+     Method (_CRS, 0, NotSerialized)
+     {
+     	Name (ATAB, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, _Y10)
+            {
+                0x00000000,
+            }
+        })
+        CreateByteField (ATAB, \_SB.PCI0.ATAI._CRS._Y10._INT, IRAI)
+        Store (0x14, IRAI)
+        Return (ATAB)
+
+	 }
+
+ 	 /* Set Resources - dummy function to keep Linux ACPI happy
+	  * Linux is more than happy not to tinker with irq
+ 	  * assignments as long as the CRS and STA functions
+ 	  * return good values
+ 	 */
+	 Method (_SRS, 1, NotSerialized) {}
+ 	 /* Disable - dummy function to keep Linux ACPI happy */
+ 	 Method (_DIS, 0, NotSerialized ) {}
+
+} // End of ATA Interface Link
+
+
+Device (USBI)
+{
+	Name (_HID, EisaId ("PNP0C0F"))
+    Name (_UID, 0x0A)
+    Method (_STA, 0, NotSerialized)
+    {
+		/* Check that at least one of the USB */
+		/* functions is enabled               */
+         And (IDEB, 0x37, Local0)
+         If (LEqual (Local0, 0x37))
+         {
+         	 Return (0x09)
+         }
+         Else
+         {
+         	 Return (0x0B)
+         }
+	}
+
+    Method (_PRS, 0, NotSerialized)
+    {
+        Name (USBB, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, )
+            {
+                0x00000015,
+            }
+        })
+
+		Return(USBB)
+	}
+
+    Method (_CRS, 0, NotSerialized)
+    {
+        Name (USBB, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, _Y12)
+            {
+                0x00000000,
+            }
+        })
+        CreateByteField (USBB, \_SB.PCI0.USBI._CRS._Y12._INT, IRBI)
+        Store (0x15, IRBI)
+        Return (USBB)
+	}
+
+
+ 	/* Set Resources - dummy function to keep Linux ACPI happy
+	 * Linux is more than happy not to tinker with irq
+ 	 * assignments as long as the CRS and STA functions
+ 	 * return good values
+ 	*/
+	Method (_SRS, 1, NotSerialized) {}
+ 	/* Disable - dummy function to keep Linux ACPI happy */
+ 	Method (_DIS, 0, NotSerialized ) {}
+}
+
+Device (VT8I)
+{
+    Name (_HID, EisaId ("PNP0C0F"))
+    Name (_UID, 0x0B)
+    Method (_STA, 0, NotSerialized)
+    {
+		/* Check Whether Sound and/or Modem are Activated */
+        If (LEqual (EAMC, 0x03))
+        {
+            Return (0x09)
+        }
+        Else
+        {
+            Return (0x0B)
+        }
+    }
+
+    Method (_PRS, 0, NotSerialized)
+    {
+        Name (A97C, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, )
+            {
+                0x00000016,
+            }
+        })
+        Return (A97C)
+	}
+
+    Method (_CRS, 0, NotSerialized)
+    {
+        Name (A97B, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, _Y14)
+            {
+                0x00000000,
+            }
+        })
+        CreateByteField (A97B, \_SB.PCI0.VT8I._CRS._Y14._INT, IRCI)
+        Store (0x16, IRCI)
+        Return (A97B)
+	}
+
+ 	/* Set Resources - dummy function to keep Linux ACPI happy
+	 * Linux is more than happy not to tinker with irq
+ 	 * assignments as long as the CRS and STA functions
+ 	 * return good values
+ 	*/
+	Method (_SRS, 1, NotSerialized) {}
+ 	/* Disable - dummy function to keep Linux ACPI happy */
+ 	Method (_DIS, 0, NotSerialized ) {}
+
+}
+
+
+Device (NICI)
+{
+    Name (_HID, EisaId ("PNP0C0F"))
+    Name (_UID, 0x0C)
+    Method (_STA, 0, NotSerialized)
+    {
+		/* Check if LAN Function is Enabled           */
+		/* Note that LAN Enable Polarity is different */
+		/* from other functions in VT8237R !?         */
+    	If (LEqual (ELAN, 0x00))
+    	{
+    		Return (0x09)
+    	}
+    	Else
+    	{
+    		Return (0x0B)
+    	}
+	}
+
+    Method (_PRS, 0, NotSerialized)
+    {
+        Name (NICB, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, )
+            {
+                0x00000017,
+            }
+        })
+        Return (NICB)
+	}
+
+    Method (_CRS, 0, NotSerialized)
+    {
+        Name (NICD, ResourceTemplate ()
+        {
+            Interrupt (ResourceConsumer, Level, ActiveLow, Shared, ,, _Y16)
+            {
+                0x00000000,
+            }
+        })
+        CreateByteField (NICD, \_SB.PCI0.NICI._CRS._Y16._INT, IRDI)
+        Store (0x17, IRDI)
+        Return (NICD)
+	}
+
+  	/* Set Resources - dummy function to keep Linux ACPI happy
+	 * Linux is more than happy not to tinker with irq
+ 	 * assignments as long as the CRS and STA functions
+ 	 * return good values
+ 	*/
+	Method (_SRS, 1, NotSerialized) {}
+ 	/* Disable - dummy function to keep Linux ACPI happy */
+ 	Method (_DIS, 0, NotSerialized ) {}
+
+
+}
diff --git a/src/mainboard/via/epia-n/acpi/pata_methods.asl b/src/mainboard/via/epia-n/acpi/pata_methods.asl
new file mode 100644
index 0000000000..68d505868e
--- /dev/null
+++ b/src/mainboard/via/epia-n/acpi/pata_methods.asl
@@ -0,0 +1,132 @@
+/*
+ * Minimalist ACPI DSDT table for EPIA-N / NL
+ * Basic description of some hardware resources to allow
+ * interrupt assignments to be done. This is expected to be included
+ * into the PATA Device definition in ab_physical.asl
+ * (C) Copyright 2009 Jon Harrison <jon.harrison@blueyonder.co.uk>
+ *
+ */
+
+Name (TIM0, Package (0x07)
+{
+    Package (0x05)
+    {
+        0x78, 0xB4, 0xF0, 0x017F, 0x0258
+    },
+
+    Package (0x05)
+    {
+        0x20, 0x22, 0x33, 0x47, 0x5D
+    },
+
+    Package (0x05)
+    {
+        0x04, 0x03, 0x02, 0x01, 0x00
+    },
+
+    Package (0x04)
+    {
+        0x02, 0x01, 0x00, 0x00
+    },
+
+    Package (0x07)
+    {
+        0x78, 0x50, 0x3C, 0x2D, 0x1E, 0x14, 0x0F
+    },
+
+    Package (0x0F)
+    {
+        0x06, 0x05, 0x04, 0x04, 0x03, 0x03, 0x02, 0x02,
+        0x01, 0x01, 0x01, 0x01, 0x01, 0x01,0x00
+    },
+
+    Package (0x07)
+    {
+        0x0E, 0x08, 0x06, 0x04, 0x02, 0x01, 0x00
+    }
+})
+
+
+/* This method sets up the PATA Timing Control*/
+/* Note that a lot of this is done in the     */
+/* Coreboot VT8237R Init code, but this is    */
+/* already getting very cluttered with board  */
+/* specific code. Using ACPI will allow this  */
+/* to be de-cluttered a bit (so long as we're */
+/* running a ACPI Capable OS !!!)             */
+
+Method (PMEX, 0, Serialized)
+{
+    If (REGF)
+    {
+		/* Check if these regs are still at defaults */
+		/* Board specific timing improvement if not  */
+		/* Already changed                           */
+        If (LEqual (PMPT, 0xA8))
+        {
+            Store (0x5D, PMPT)
+        }
+
+        If (LEqual (PSPT, 0xA8))
+        {
+            Store (0x5D, PSPT)
+        }
+
+        If (LEqual (SMPT, 0xA8))
+        {
+            Store (0x5D, SMPT)
+        }
+
+        If (LEqual (SSPT, 0xA8))
+        {
+            Store (0x5D, SSPT)
+        }
+
+    }
+}
+
+/* This Method Provides the method that is used to */
+/* Reset ATA Drives to POST reset condition        */
+Method (GTF, 4, Serialized)
+{
+    Store (Buffer (0x07)
+        {
+            0x03, 0x00, 0x00, 0x00, 0x00, 0xA0, 0xEF
+        }, Local1)
+    Store (Buffer (0x07)
+        {
+            0x03, 0x00, 0x00, 0x00, 0x00, 0xA0, 0xEF
+        }, Local2)
+    CreateByteField (Local1, 0x01, MODE)
+    CreateByteField (Local2, 0x01, UMOD)
+    CreateByteField (Local1, 0x05, PCHA)
+    CreateByteField (Local2, 0x05, UCHA)
+    And (Arg0, 0x03, Local3)
+    If (LEqual (And (Local3, 0x01), 0x01))
+    {
+        Store (0xB0, PCHA)
+        Store (0xB0, UCHA)
+    }
+
+    If (Arg1)
+    {
+        Store (DerefOf (Index (DerefOf (Index (TIM0, 0x05)), Arg2)),
+            UMOD)
+        Or (UMOD, 0x40, UMOD)
+    }
+    Else
+    {
+        Store (Match (DerefOf (Index (TIM0, 0x01)), MEQ, Arg3, MTR,
+            0x00, 0x00), Local0)
+        Or (0x20, DerefOf (Index (DerefOf (Index (TIM0, 0x03)), Local0
+            )), UMOD)
+    }
+
+    Store (Match (DerefOf (Index (TIM0, 0x01)), MEQ, Arg3, MTR,
+        0x00, 0x00), Local0)
+    Or (0x08, DerefOf (Index (DerefOf (Index (TIM0, 0x02)), Local0
+        )), MODE)
+    Concatenate (Local1, Local2, Local6)
+    Return (Local6)
+}
+
diff --git a/src/mainboard/via/epia-n/acpi/pci_init.asl b/src/mainboard/via/epia-n/acpi/pci_init.asl
new file mode 100644
index 0000000000..3169a03d50
--- /dev/null
+++ b/src/mainboard/via/epia-n/acpi/pci_init.asl
@@ -0,0 +1,30 @@
+/*
+ * Minimalist ACPI DSDT table for EPIA-N / NL
+ * Basic description of PCI Interrupt Assignments.
+ * This is expected to be included into _SB.PCI0 namespace
+ * (C) Copyright 2009 Jon Harrison <jon.harrison@blueyonder.co.uk>
+ *
+ */
+
+/* This file provides a PCI Bus Initialisation Method that sets
+ * some flags for use in the interrupt link assignment
+ */
+
+Method (\_SB.PCI0._INI, 0, NotSerialized)
+{
+
+	/* Checking for ATA Interface Enabled */
+	Store (0x00, ATFL)
+	If (LEqual (EIDE, 0x01))
+	{
+    	Store (0x02, ATFL)
+	}
+	Else
+	{
+    	If (LNotEqual (\_SB.PCI0.PATA.VID, 0x1106))
+    	{
+        	Store (0x01, ATFL)
+    	}
+	}
+
+}
diff --git a/src/mainboard/via/epia-n/acpi/sb_physical.asl b/src/mainboard/via/epia-n/acpi/sb_physical.asl
new file mode 100644
index 0000000000..7dd7b1d7e8
--- /dev/null
+++ b/src/mainboard/via/epia-n/acpi/sb_physical.asl
@@ -0,0 +1,548 @@
+/*
+ * Minimalist ACPI DSDT table for EPIA-N / NL
+ * Basic description of some hardware resources to allow
+ * interrupt assignments to be done. This is expected to be included
+ * into _SB.PCI0 namespace
+ * (C) Copyright 2009 Jon Harrison <jon.harrison@blueyonder.co.uk>
+ *
+ */
+
+
+/* Basic description of the VT8237R LPC Interface
+ * PCI Configuration Space
+ */
+
+Device (VT8R)
+{
+    Name (_ADR, 0x00110000)
+    OperationRegion (USBC, PCI_Config, 0x50, 0x02)
+    Scope (\)
+    {
+    	Field (\_SB.PCI0.VT8R.USBC, ByteAcc, NoLock, Preserve)
+    	{
+    		IDEB,	8
+    	}
+    }
+
+    OperationRegion (VTSB, PCI_Config, 0x00, 0xE8)
+    Scope (\)
+    {
+    	Field (\_SB.PCI0.VT8R.VTSB, ByteAcc, NoLock, Preserve)
+    	{
+    				Offset (0x02),
+    		DEID,	16,
+    				Offset (0x2C),
+    		ID2C,	8,
+    		ID2D,	8,
+    		ID2E,	8,
+    		ID2F,	8,
+    				Offset (0x44),
+    		PIRE,	4,
+    		PIRF,	4,
+    		PIRG,	4,
+    		PIRH,	4,
+    		POLE,	1,
+    		POLF,	1,
+    		POLG,	1,
+    		POLH,	1,
+    		ENR8,	1,
+    				Offset (0x50),
+    		ESB4,	1,
+    		ESB3,	1,
+    		ESB2,	1,
+    		EIDE,	1,
+    		EUSB,	1,
+    		ESB1,	1,
+    		EAMC,	2,
+    		EKBC,	1,
+    		KBCC,	1,
+    		EPS2,	1,
+    		ERTC,	1,
+    		ELAN,	1,
+    			,	2,
+    		USBD,	1,
+    		SIRQ,	8,
+    				Offset (0x55),
+    		PIRA,	8,
+    		PIBC,	8,
+    		PIRD,	8,
+    				Offset (0x75),
+    		BSAT,	1,
+    				Offset (0x94),
+    		PWC1,	2,
+    		GPO1,	1,
+    		GPO2,	1,
+    		GPO3,	1,
+    		PLLD,	1
+    	}
+    }
+}
+
+/* Basic Description of Serial ATA Interface */
+Device (SATA)
+{
+    Name (_ADR, 0x000F0000)
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.SATA.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.SATA.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+
+    OperationRegion (SAPR, PCI_Config, 0x00, 0xC2)
+    Field (SAPR, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        IDEI,   8,
+                Offset (0x49),
+            ,   6,
+        EPHY,   1
+    }
+}
+
+/* Basic Description of Parallel ATA Interface */
+/* An some initialisation of the interface     */
+Device (PATA)
+{
+    Name (_ADR, 0x000F0001)
+    Name (REGF, 0x01)
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.PATA.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            PMEX ()
+			/* Check if the Interface is Enabled */
+            If (LEqual (\_SB.PCI0.PATA.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+
+	/* ACPI Spec says to check that regions are accessible */
+	/* before trying to access them                        */
+    Method (_REG, 2, NotSerialized)
+    {
+		/* Arg0 = Operating Region (0x02 == PCI_Config) */
+        If (LEqual (Arg0, 0x02))
+        {
+			/* Arg1 = Handler Connection Mode (0x01 == Connect) */
+            Store (Arg1, REGF)
+        }
+    }
+
+	#include "pata_methods.asl"
+
+
+    OperationRegion (PAPR, PCI_Config, 0x00, 0xC2)
+    Field (PAPR, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x09),
+        ENAT,   4,
+                Offset (0x3C),
+        IDEI,   8,
+                Offset (0x40),
+        ESCH,   1,
+        EPCH,   1,
+                Offset (0x48),
+        SSPT,   8,
+        SMPT,   8,
+        PSPT,   8,
+        PMPT,   8,
+                Offset (0x50),
+        SSUT,   4,
+        SSCT,   1,
+        SSUE,   3,
+        SMUT,   4,
+        SMCT,   1,
+        SMUE,   3,
+        PSUT,   4,
+        PSCT,   1,
+        PSUE,   3,
+        PMUT,   4,
+        PMCT,   1,
+        PMUE,   3
+    }
+
+
+    Device (CHN0)
+    {
+        Name (_ADR, 0x00)
+        Method (_STA, 0, NotSerialized)
+        {
+            If (LNotEqual (\_SB.PCI0.PATA.EPCH, 0x01))
+            {
+                Return (0x00)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+
+        Device (DRV0)
+        {
+            Name (_ADR, 0x00)
+            Method (_GTF, 0, NotSerialized)
+            {
+                Return (GTF (0x00, PMUE, PMUT, PMPT))
+            }
+        }
+
+        Device (DRV1)
+        {
+            Name (_ADR, 0x01)
+            Method (_GTF, 0, NotSerialized)
+            {
+                Return (GTF (0x01, PSUE, PSUT, PSPT))
+            }
+        }
+    }
+
+    Device (CHN1)
+    {
+        Name (_ADR, 0x01)
+        Method (_STA, 0, NotSerialized)
+        {
+            If (LNotEqual (ATFL, 0x02))
+            {
+                If (LEqual (\_SB.PCI0.SATA.EPHY, 0x01))
+                {
+                    Return (0x00)
+                }
+                Else
+                {
+                    If (LNotEqual (\_SB.PCI0.PATA.ESCH, 0x01))
+                    {
+                        Return (0x00)
+                    }
+                    Else
+                    {
+                        Return (0x0F)
+                    }
+                }
+            }
+			Else
+			{
+               If (LEqual (ATFL, 0x02))
+               {
+                   If (LNotEqual (\_SB.PCI0.PATA.ESCH, 0x01))
+                   {
+                	   Return (0x00)
+                   }
+                   Else
+                   {
+                	   Return (0x0F)
+                   }
+               }
+			   Else
+			   {
+			   		Return(0x00)
+			   }
+			}
+        }
+
+        Device (DRV0)
+        {
+            Name (_ADR, 0x00)
+            Method (_GTF, 0, NotSerialized)
+            {
+                Return (GTF (0x02, SMUE, SMUT, SMPT))
+            }
+        }
+
+        Device (DRV1)
+        {
+            Name (_ADR, 0x01)
+            Method (_GTF, 0, NotSerialized)
+            {
+                Return (GTF (0x03, SSUE, SSUT, SSPT))
+            }
+        }
+    }
+} // End of PATA Device
+
+
+/* Implement Basic USB Presence detect and */
+/* Power Management Event mask             */
+Device (USB0)
+{
+    Name (_ADR, 0x00100000)
+    Name (_PRW, Package (0x02)
+    {
+        0x0E,
+        0x03
+    })
+
+    OperationRegion (U2F0, PCI_Config, 0x00, 0xC2)
+    Field (U2F0, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        U0IR,   4,
+                Offset (0x84),
+        ECDX,   2
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.USB0.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.USB0.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+Device (USB1)
+{
+    Name (_ADR, 0x00100001)
+    Name (_PRW, Package (0x02)
+    {
+        0x0E,
+        0x03
+    })
+
+    OperationRegion (U2F1, PCI_Config, 0x00, 0xC2)
+    Field (U2F1, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        U1IR,   4,
+                Offset (0x84),
+        ECDX,   2
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.USB1.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.USB1.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+Device (USB2)
+{
+    Name (_ADR, 0x00100002)
+    Name (_PRW, Package (0x02)
+    {
+        0x0E,
+        0x03
+    })
+
+    OperationRegion (U2F2, PCI_Config, 0x00, 0xC2)
+    Field (U2F2, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        U2IR,   4,
+                Offset (0x84),
+        ECDX,   2
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.USB2.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.USB2.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+Device (USB3)
+{
+    Name (_ADR, 0x00100003)
+    Name (_PRW, Package (0x02)
+    {
+        0x0E,
+        0x03
+    })
+
+    OperationRegion (U2F3, PCI_Config, 0x00, 0xC2)
+    Field (U2F3, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        U3IR,   4,
+                Offset (0x84),
+        ECDX,   2
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.USB3.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.USB3.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+Device (USB4)
+{
+    Name (_ADR, 0x00100004)
+    Name (_PRW, Package (0x02)
+    {
+        0x0E,
+        0x03
+    })
+
+    OperationRegion (U2F4, PCI_Config, 0x00, 0xC2)
+    Field (U2F4, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        U4IR,   4,
+                Offset (0x84),
+        ECDX,   2
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.USB4.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.USB4.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+/* Basic Definition of Ethernet Interface */
+Device (NIC0)
+{
+    Name (_ADR, 0x00120000)
+    Name (_PRW, Package (0x02)
+    {
+        0x03,
+        0x05
+    })
+
+    OperationRegion (NIC0, PCI_Config, 0x00, 0xC2)
+    Field (NIC0, ByteAcc, NoLock, Preserve)
+    {
+        VID,    16,
+                Offset (0x04),
+        CMDR,   3,
+                Offset (0x3C),
+        NIIR,   4,
+    }
+
+    Method (_STA, 0, NotSerialized)
+    {
+        If (LNotEqual (\_SB.PCI0.NIC0.VID, 0x1106))
+        {
+            Return (0x00)
+        }
+        Else
+        {
+            If (LEqual (\_SB.PCI0.NIC0.CMDR, 0x00))
+            {
+                Return (0x0D)
+            }
+            Else
+            {
+                Return (0x0F)
+            }
+        }
+    }
+}
+
+/* Very Basic Definition of Sound Controller */
+Device (AC97)
+{
+    Name (_ADR, 0x00110005)
+    Name (_PRW, Package (0x02)
+    {
+        0x0D,
+        0x05
+    })
+}