Add Baytrail ChromeOS devices using variant scheme

Add new ChromeOS devices banjo, candy, clapper, glimmer, gnawty,
heli, kip, orco, quawks, squawks, sumo, swanky, and winky using
their common reference board (rambi) as a base.

Chromium sources used:
firmware-banjo-5216.334.B 32ec493 [chromeos: vboot_loader: Set...]
firmware-candy-5216.310.B 519ff11 [baytrail: Preserve VbNv around...]
firmware-clapper-5216.199.B 80d55e3 [baytrail: add code for...]
firmware-glimmer-5216.198.B fae0770 [baytrail: add code for...]
firmware-gnawty-5216.239.B 952adb7 [Gnawty/Olay: Add 2nd source...]
firmware-heli-5216.392.B f1f3604 [helis: Lock ME / TXE section...]
firmware-kip-5216.227.B db3c5d9 [kip: update spd for for MT41K256M16*]
firmware-orco-5216.362.B 76f1651 [Orco: Adjust rx delay for norm.]
firmware-quawks-5216.204.B edb60c9 [Quawks: Update SPD data]
firmware-squawks-5216.152.B c6573dc [Squawks: Update SPD data]
firmware-sumo-5216.382.B c62b6f23 [Ninja, Sumo: Add SPD source...]
firmware-swanky-5216.238.B 233b2a7 [Swanky: update SPD table]
firmware-winky-5216.265.B ce91ffc [Add to support HT Micron...]

The same basic cleanup/changes are made here as with the initial BYT
variant commit:
 - remove unused ACPI trackpad/touchscreen devices
 - correct I2C addresses in SMBIOS entries
 - clean up comment formatting
 - remove ACPI device for unused light sensor
 - switch I2C ACPI devices from edge to level triggered interrupts,
   for better compatibility/functionality (and to be consistent
   with other recently-upstreamed ChromeOS devices)
 - Micron 2GB SPD file for kip with updated values renamed to distinguish
   from same file used by other boards

Change-Id: Ic66f9b539afb5aff32c4c1a8563f6612f5a2927c
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/18164
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

4 files changed, 106 insertions, 0 deletions

diff --git a/src/mainboard/google/rambi/acpi/touchscreen_amtel.asl b/src/mainboard/google/rambi/acpi/touchscreen_atmel.asl
index 1aec3ce083..1aec3ce083 100644
--- a/src/mainboard/google/rambi/acpi/touchscreen_amtel.asl
+++ b/src/mainboard/google/rambi/acpi/touchscreen_atmel.asl
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_elan.asl b/src/mainboard/google/rambi/acpi/touchscreen_elan.asl
new file mode 100644
index 0000000000..ac0763d947
--- /dev/null
+++ b/src/mainboard/google/rambi/acpi/touchscreen_elan.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.I2C6)
+{
+	Device (ETSA)
+	{
+		Name (_HID, "ELAN0001")
+		Name (_DDN, "ELAN Touchscreen")
+		Name (_UID, 1)
+		Name (ISTP, 0) /* TouchScreen */
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_TOUCHSCREEN_I2C_ADDR,	// SlaveAddress
+				ControllerInitiated,		// SlaveMode
+				400000,				// ConnectionSpeed
+				AddressingMode7Bit,		// AddressingMode
+				"\\_SB.I2C6",			// ResourceSource
+			)
+			Interrupt (ResourceConsumer, Level, ActiveLow)
+			{
+				BOARD_TOUCHSCREEN_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			If (LEqual (\S6EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+
+		/* Allow device to power off in S0 */
+		Name (_S0W, 4)
+	}
+}
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_wdt.asl b/src/mainboard/google/rambi/acpi/touchscreen_wdt.asl
new file mode 100644
index 0000000000..0b5c100c7d
--- /dev/null
+++ b/src/mainboard/google/rambi/acpi/touchscreen_wdt.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.I2C6)
+{
+	Device (WTSA)
+	{
+		Name (_HID, "WDHT0001")
+		Name (_DDN, "WDT Touchscreen")
+		Name (_UID, 6)
+		Name (ISTP, 0) /* TouchScreen */
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_TOUCHSCREEN_I2C_ADDR,	// SlaveAddress
+				ControllerInitiated,		// SlaveMode
+				400000,				// ConnectionSpeed
+				AddressingMode7Bit,		// AddressingMode
+				"\\_SB.I2C6",			// ResourceSource
+			)
+			Interrupt (ResourceConsumer, Level, ActiveLow)
+			{
+				BOARD_TOUCHSCREEN_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			If (LEqual (\S6EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+
+		/* Allow device to power off in S0 */
+		Name (_S0W, 4)
+	}
+}
diff --git a/src/mainboard/google/rambi/acpi/trackpad_amtel.asl b/src/mainboard/google/rambi/acpi/trackpad_atmel.asl
index 1d9fb46197..1d9fb46197 100644
--- a/src/mainboard/google/rambi/acpi/trackpad_amtel.asl
+++ b/src/mainboard/google/rambi/acpi/trackpad_atmel.asl