1 files changed, 53 insertions, 0 deletions
diff --git a/src/mainboard/google/rambi/acpi/trackpad_atmel.asl b/src/mainboard/google/rambi/acpi/trackpad_atmel.asl
new file mode 100644
index 0000000000..1d9fb46197
--- /dev/null
+++ b/src/mainboard/google/rambi/acpi/trackpad_atmel.asl
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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.
+ */
+
+#include <variant/onboard.h>
+
+Scope (\_SB.I2C1)
+{
+	Device (ATPA)
+	{
+		Name (_HID, "ATML0000")
+		Name (_DDN, "Atmel Touchpad")
+		Name (_UID, 2)
+		Name (ISTP, 1) /* Touchpad */
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_TRACKPAD_I2C_ADDR,	// SlaveAddress
+				ControllerInitiated,		// SlaveMode
+				400000,				// ConnectionSpeed
+				AddressingMode7Bit,		// AddressingMode
+				"\\_SB.I2C1",			// ResourceSource
+			)
+			Interrupt (ResourceConsumer, Level, ActiveLow)
+			{
+				BOARD_TRACKPAD_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			If (LEqual (\S1EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+
+		/* Allow device to power off in S0 */
+		Name (_S0W, 4)
+	}
+}