3 files changed, 201 insertions, 0 deletions
diff --git a/src/southbridge/via/vt8237r/acpi/default_irq_route.asl b/src/southbridge/via/vt8237r/acpi/default_irq_route.asl
new file mode 100644
index 0000000000..2e9e76391a
--- /dev/null
+++ b/src/southbridge/via/vt8237r/acpi/default_irq_route.asl
@@ -0,0 +1,88 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Lubomir Rintel <lkundrak@v3.sk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+Method (_PRT, 0) {
+	If (LEqual (^ISAC.APIC, Zero)) {
+		Return (Package (20) {
+			/* AGP bridge */
+			Package (4) { 0x0001ffff, 0, ^ISAC.LNKA, 0x00 },
+			Package (4) { 0x0001ffff, 1, ^ISAC.LNKB, 0x00 },
+			Package (4) { 0x0001ffff, 2, ^ISAC.LNKC, 0x00 },
+			Package (4) { 0x0001ffff, 3, ^ISAC.LNKD, 0x00 },
+
+			/* IDE interface */
+			Package (4) { 0x000fffff, 0, ^ISAC.LNKA, 0x00 },
+			Package (4) { 0x000fffff, 1, ^ISAC.LNKB, 0x00 },
+			Package (4) { 0x000fffff, 2, ^ISAC.LNKC, 0x00 },
+			Package (4) { 0x000fffff, 3, ^ISAC.LNKD, 0x00 },
+
+			/* USB controller */
+			Package (4) { 0x0010ffff, 0, ^ISAC.LNKA, 0x00 },
+			Package (4) { 0x0010ffff, 1, ^ISAC.LNKB, 0x00 },
+			Package (4) { 0x0010ffff, 2, ^ISAC.LNKC, 0x00 },
+			Package (4) { 0x0010ffff, 3, ^ISAC.LNKD, 0x00 },
+
+			/* Audio (& LPC bridge) */
+			Package (4) { 0x0011ffff, 0, ^ISAC.LNKA, 0x00 },
+			Package (4) { 0x0011ffff, 1, ^ISAC.LNKB, 0x00 },
+			Package (4) { 0x0011ffff, 2, ^ISAC.LNKC, 0x00 },
+			Package (4) { 0x0011ffff, 3, ^ISAC.LNKD, 0x00 },
+
+			/* Ethernet controller */
+			Package (4) { 0x0012ffff, 0, ^ISAC.LNKA, 0x00 },
+			Package (4) { 0x0012ffff, 1, ^ISAC.LNKB, 0x00 },
+			Package (4) { 0x0012ffff, 2, ^ISAC.LNKC, 0x00 },
+			Package (4) { 0x0012ffff, 3, ^ISAC.LNKD, 0x00 }
+		})
+	} Else {
+		/* "Table 9. APIC Fixed IRQ Routing
+		 * When the internal APIC is enabled, internal IRQ
+		 * routing to the APIC is fixed as follows:" */
+		Return (Package (20) {
+			/* The graphics controller behind the AGP bridge */
+			/* INTA# => IRQ16 INTB# => IRQ17 INTC# => IRQ18 INTD# => IRQ19 */
+			Package (4) { 0x0001ffff, 0, 0x00, 16 },
+			Package (4) { 0x0001ffff, 1, 0x00, 17 },
+			Package (4) { 0x0001ffff, 2, 0x00, 18 },
+			Package (4) { 0x0001ffff, 3, 0x00, 19 },
+
+			/* IDE (Native Mode)/SATA IRQ & INTE => IRQ20 */
+			Package (4) { 0x000fffff, 0, 0x00, 20 },
+			Package (4) { 0x000fffff, 1, 0x00, 20 },
+			Package (4) { 0x000fffff, 2, 0x00, 20 },
+			Package (4) { 0x000fffff, 3, 0x00, 20 },
+
+			/* USB IRQ (all 5 functions) and INTF => IRQ21 */
+			Package (4) { 0x0010ffff, 0, 0x00, 21 },
+			Package (4) { 0x0010ffff, 1, 0x00, 21 },
+			Package (4) { 0x0010ffff, 2, 0x00, 21 },
+			Package (4) { 0x0010ffff, 3, 0x00, 21 },
+
+			/* AC’97 / MC’97 IRQ and INTG => IRQ22 */
+			Package (4) { 0x0011ffff, 0, 0x00, 22 },
+			Package (4) { 0x0011ffff, 1, 0x00, 22 },
+			Package (4) { 0x0011ffff, 2, 0x00, 22 },
+			Package (4) { 0x0011ffff, 3, 0x00, 22 },
+
+			/* LAN IRQ and INTH => IRQ23 */
+			Package (4) { 0x0012ffff, 0, 0x00, 23 },
+			Package (4) { 0x0012ffff, 1, 0x00, 23 },
+			Package (4) { 0x0012ffff, 2, 0x00, 23 },
+			Package (4) { 0x0012ffff, 3, 0x00, 23 }
+		})
+
+	}
+}
diff --git a/src/southbridge/via/vt8237r/acpi/irqlinks.asl b/src/southbridge/via/vt8237r/acpi/irqlinks.asl
new file mode 100644
index 0000000000..6c4c89a77f
--- /dev/null
+++ b/src/southbridge/via/vt8237r/acpi/irqlinks.asl
@@ -0,0 +1,66 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Lubomir Rintel <lkundrak@v3.sk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <arch/x86/acpi/statdef.asl>
+
+/* Possible PNP IRQs */
+Name (PIRQ, ResourceTemplate () {
+	IRQ (Level, ActiveLow, Shared) {3, 4, 6, 7, 10, 11, 12}
+})
+
+#define IRQ_LINK(reg)						\
+	Name (_HID, EisaId ("PNP0C0F"))				\
+	Name (_UID, 1)						\
+								\
+	Method (_STA, 0) {					\
+		If (LEqual (reg, 0x00)) {			\
+			Return (STA_DISABLED)			\
+		}						\
+		Return (STA_INVISIBLE)				\
+	}							\
+								\
+	Method (_PRS, 0) {					\
+		Return (PIRQ)					\
+	}							\
+								\
+	Name (CRSA, ResourceTemplate () {			\
+		IRQ (Level, ActiveLow, Shared) {}		\
+	})							\
+	Method (_CRS, 0) {					\
+		CreateWordField (CRSA, 0x1, AINT)		\
+		ShiftLeft (One, reg, AINT)			\
+		Return (CRSA)					\
+	}							\
+								\
+	Method (_SRS, 1) {					\
+		CreateWordField (Arg0, 0x1, AINT)		\
+		Store (Zero, Local0)				\
+		Store (AINT, Local1)				\
+		While (LNotEqual (Local1, One)) {		\
+			ShiftRight (Local1, One, Local1)	\
+			Increment (Local0)			\
+		}						\
+		Store (Local0, reg)				\
+	}							\
+								\
+	Method (_DIS, 0) {					\
+		Store (Zero, reg)				\
+	}							\
+
+Device (LNKA) { IRQ_LINK (INTA) }
+Device (LNKB) { IRQ_LINK (INTB) }
+Device (LNKC) { IRQ_LINK (INTC) }
+Device (LNKD) { IRQ_LINK (INTD) }
diff --git a/src/southbridge/via/vt8237r/acpi/lpc.asl b/src/southbridge/via/vt8237r/acpi/lpc.asl
new file mode 100644
index 0000000000..f13a96bb29
--- /dev/null
+++ b/src/southbridge/via/vt8237r/acpi/lpc.asl
@@ -0,0 +1,47 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Lubomir Rintel <lkundrak@v3.sk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/* VT8237 ISA bridge */
+Device (ISAC)
+{
+	Name (_ADR, 0x00110000)
+
+	OperationRegion (ISAB, PCI_Config, 0x00, 0xEF)
+	Field (ISAB, DWordAcc, NoLock, Preserve) {
+
+		/* PCI PNP Interrupt Routing 1 */
+		Offset (0x55),
+		    , 4,	/* Reserved */
+		INTA, 4,	/* PCI INTA# Routing */
+
+		/* PCI PNP Interrupt Routing 2 */
+		Offset (0x56),
+		INTB, 4,	/* PCI INTB# Routing */
+		INTC, 4,	/* PCI INTC# Routing */
+
+		/* PCI PNP Interrupt Routing 3 */
+		Offset (0x57),
+		    , 4,	/* Reserved */
+		INTD, 4,	/* PCI INTD# Routing */
+
+		/* Miscellaneous Control 0 */
+		Offset (0x58),
+		    , 6,
+		APIC, 1,	/* Internal APIC Enable */
+	}
+
+	#include "irqlinks.asl"
+}