From 450aa6ab3eddb8c609ec55ceff6957f3f92ac519 Mon Sep 17 00:00:00 2001
From: Duncan Laurie <dlaurie@chromium.org>
Date: Thu, 8 Dec 2016 10:48:06 -0800
Subject: [PATCH] UPSTREAM: google/eve: Add ASL code to describe SPI FPC1020
 controller

There is ongoing work to link SPI bus and devices in to the devicetree
so this can be generated, but for now put in the raw ASL code to
describe this controller so it can be used by the factory.

BUG=chrome-os-partner:55538
BRANCH=None

TEST=successfully load fpc1020 kernel module on eve board

Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17776
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I6641664e60fcf2c0bad4b3506c77513b26d7be2e
Reviewed-on: https://chromium-review.googlesource.com/418441
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
---
 src/mainboard/google/eve/acpi/mainboard.asl | 49 +++++++++++++++++++++
 src/mainboard/google/eve/dsdt.asl           |  3 ++
 2 files changed, 52 insertions(+)
 create mode 100644 src/mainboard/google/eve/acpi/mainboard.asl

diff --git a/src/mainboard/google/eve/acpi/mainboard.asl b/src/mainboard/google/eve/acpi/mainboard.asl
new file mode 100644
index 0000000000..a55308ff31
--- /dev/null
+++ b/src/mainboard/google/eve/acpi/mainboard.asl
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Google Inc.
+ *
+ * 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.SPI1)
+{
+	Device (FPC)
+	{
+		Name (_HID, "PRP0001")
+		Name (_UID, 1)
+		Name (_CRS, ResourceTemplate ()
+		{
+			SpiSerialBus (
+				0,                   // DeviceSelection (CS0)
+				PolarityLow,         // DeviceSelectionPolarity
+				FourWireMode,        // WireMode
+				8,                   // DataBitLength
+				ControllerInitiated, // SlaveMode
+				1000000,             // ConnectionSpeed (1MHz)
+				ClockPolarityLow,    // ClockPolarity
+				ClockPhaseFirst,     // ClockPhase
+				"\\_SB.PCI0.SPI1",   // ResourceSource
+				0,                   // ResourceSourceIndex
+				ResourceConsumer,    // ResourceUsage
+			)
+			Interrupt (ResourceConsumer, Edge, ActiveLow) { 0x50 }
+		})
+		Name (_DSD, Package () {
+			ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				Package () {
+					"compatible",
+					Package () { "fpc,fpc1020" }
+				},
+			}
+		})
+	}
+}
diff --git a/src/mainboard/google/eve/dsdt.asl b/src/mainboard/google/eve/dsdt.asl
index 2882d50f19..22b92f3194 100644
--- a/src/mainboard/google/eve/dsdt.asl
+++ b/src/mainboard/google/eve/dsdt.asl
@@ -67,4 +67,7 @@ DefinitionBlock(
 	{
 		#include "acpi/dptf.asl"
 	}
+
+	/* ACPI code for EC functions */
+	#include "acpi/mainboard.asl"
 }