Michał Żygowski has uploaded this change for review.

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mb/pcengines/apu2: describe serial ports in ACPI

FreeBSD users had to manually configure serial ports on their
installations. Defining serial ports in ACPI save that effort.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I0de4172a1884abbe9d625060a9045c9d71469e27
---
A src/mainboard/pcengines/apu2/acpi/superio.asl
M src/mainboard/pcengines/apu2/dsdt.asl
2 files changed, 68 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/32989/1

diff --git a/src/mainboard/pcengines/apu2/acpi/superio.asl b/src/mainboard/pcengines/apu2/acpi/superio.asl
new file mode 100644
index 0000000..c61e3d7
--- /dev/null
+++ b/src/mainboard/pcengines/apu2/acpi/superio.asl
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 PC Engines Gmbh
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+Scope (\_SB.PCI0.LIBR) {
+
+	Device (COM1) {
+		Name (_HID, EISAID ("PNP0501"))
+		Name (_UID, 1)
+
+		Method (_STA, 0, NotSerialized) {
+			Return (0x0F)
+		}
+
+		Name (_CRS, ResourceTemplate ()
+		{
+			IO (Decode16, 0x03F8, 0x3F8, 0x08, 0x08)
+			IRQNoFlags () {4}
+		})
+
+		Name (_PRS, ResourceTemplate ()
+		{
+			StartDependentFn (0, 0) {
+				IO (Decode16, 0x03F8, 0x3F8, 0x08, 0x08)
+				IRQNoFlags () {4}
+			}
+			EndDependentFn ()
+		})
+	}
+
+	Device (COM2) {
+		Name (_HID, EISAID ("PNP0501"))
+		Name (_UID, 2)
+
+		Method (_STA, 0, NotSerialized) {
+			Return (0x0F)
+		}
+
+		Name (_CRS, ResourceTemplate ()
+		{
+			IO (Decode16, 0x02F8, 0x2F8, 0x08, 0x08)
+			IRQNoFlags () {3}
+		})
+
+		Name (_PRS, ResourceTemplate ()
+		{
+			StartDependentFn (0, 0) {
+				IO (Decode16, 0x02F8, 0x2F8, 0x08, 0x08)
+				IRQNoFlags () {3}
+			}
+			EndDependentFn ()
+		})
+	}
+}
\ No newline at end of file
diff --git a/src/mainboard/pcengines/apu2/dsdt.asl b/src/mainboard/pcengines/apu2/dsdt.asl
index 3bf0ed6..409f03d 100644
--- a/src/mainboard/pcengines/apu2/dsdt.asl
+++ b/src/mainboard/pcengines/apu2/dsdt.asl
@@ -81,5 +81,8 @@
 
 	/* Define the System Indicators for the platform */
 	#include "acpi/si.asl"
+
+	/* Super IO devices (COM ports) */
+	#include "acpi/superio.asl"
 }
 /* End of ASL file */

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