ec/google/wilco: Add ACPI SuperIO devices

Add ACPI devices for the basic SuperIO functionality provided by the EC
for PS/2 keyboard, PS/2 mouse (trackpad emulation), and legacy UART.

The specific defines to enable these devices should be declared by the
mainboard before including this ASL, the same as the Chrome EC behavior.

Change-Id: I910940ebf26b8758ab12d695e1eba9c668c640c6
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/29125
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 117 insertions, 0 deletions

diff --git a/src/ec/google/wilco/acpi/superio.asl b/src/ec/google/wilco/acpi/superio.asl
new file mode 100644
index 0000000000..a8cea7891a
--- /dev/null
+++ b/src/ec/google/wilco/acpi/superio.asl
@@ -0,0 +1,117 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC
+ *
+ * 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 is \_SB.PCI0.LPCB */
+
+Device (SIO)
+{
+	Name (_UID, 0)
+	Name (_ADR, 0)
+
+	Device (COM1)
+	{
+		Name (_HID, EisaId ("PNP0501"))
+		Name (_UID, 1)
+		Name (_ADR, 0)
+
+		Method (_STA, 0, NotSerialized)
+		{
+#ifdef SIO_EC_ENABLE_COM1
+			Return (0x0f)
+#else
+			Return (Zero)
+#endif
+		}
+
+		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 (PS2K)
+	{
+		Name (_HID, EisaId ("PNP0303"))
+		Name (_CID, EisaId ("PNP030B"))
+		Name (_UID, 0)
+		Name (_ADR, 0)
+
+		Method (_STA, 0, NotSerialized)
+		{
+#ifdef SIO_EC_ENABLE_PS2K
+			Return (0x0f)
+#else
+			Return (Zero)
+#endif
+		}
+
+		Name (_CRS, ResourceTemplate()
+		{
+			IO (Decode16, 0x60, 0x60, 0x01, 0x01)
+			IO (Decode16, 0x64, 0x64, 0x01, 0x01)
+			IRQ (Edge, ActiveHigh, Exclusive) {1}
+		})
+
+		Name (_PRS, ResourceTemplate()
+		{
+			StartDependentFn (0, 0) {
+				IO (Decode16, 0x60, 0x60, 0x01, 0x01)
+				IO (Decode16, 0x64, 0x64, 0x01, 0x01)
+				IRQ (Edge, ActiveHigh, Exclusive) {1}
+			}
+			EndDependentFn ()
+		})
+	}
+
+	Device (PS2M)
+	{
+		Name (_HID, EisaId ("PNP0F13"))
+		Name (_UID, 0)
+		Name (_ADR, 0)
+
+		Method (_STA, 0, NotSerialized)
+		{
+#ifdef SIO_EC_ENABLE_PS2M
+			Return (0x0f)
+#else
+			Return (Zero)
+#endif
+		}
+
+		Name (_CRS, ResourceTemplate()
+		{
+			IRQ (Edge, ActiveHigh, Exclusive) {12}
+		})
+
+		Name (_PRS, ResourceTemplate()
+		{
+			StartDependentFn (0, 0) {
+				IRQ (Edge, ActiveHigh, Exclusive) {12}
+			}
+			EndDependentFn ()
+		})
+	}
+}