google/lars: Copy from intel/kunimitsu

Change-Id: I95129e6f519735e236c9c13b16e21df25b9ea607
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/12200
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

34 files changed, 2118 insertions, 0 deletions

diff --git a/src/mainboard/google/lars/Kconfig b/src/mainboard/google/lars/Kconfig
new file mode 100644
index 0000000000..d9381e7dcf
--- /dev/null
+++ b/src/mainboard/google/lars/Kconfig
@@ -0,0 +1,55 @@
+if BOARD_GOOGLE_LARS
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select BOARD_ID_AUTO
+	select BOARD_ROMSIZE_KB_16384
+	select CACHE_ROM
+	select EC_GOOGLE_CHROMEEC
+	select EC_GOOGLE_CHROMEEC_ACPI_MEMMAP
+	select EC_GOOGLE_CHROMEEC_LPC
+	select EC_GOOGLE_CHROMEEC_MEC
+	select EC_GOOGLE_CHROMEEC_PD
+	select EC_SOFTWARE_SYNC
+	select HAVE_ACPI_RESUME
+	select HAVE_ACPI_TABLES
+	select HAVE_OPTION_TABLE
+	select HAVE_SMI_HANDLER
+	select MAINBOARD_HAS_CHROMEOS
+	select MARK_GRAPHICS_MEM_WRCOMB
+	select MMCONF_SUPPORT
+	select MONOTONIC_TIMER_MSR
+	select SOC_INTEL_SKYLAKE
+
+config CHROMEOS
+	select CHROMEOS_RAMOOPS_DYNAMIC
+	select CHROMEOS_VBNV_CMOS
+	select LID_SWITCH
+	select VBOOT_OPROM_MATTERS
+	select VIRTUAL_DEV_SWITCH
+
+config IRQ_SLOT_COUNT
+	int
+	default 18
+
+config BOOT_MEDIA_SPI_BUS
+	int
+	default 0
+
+config MAINBOARD_DIR
+	string
+	default "google/lars"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "Lars"
+
+config MAX_CPUS
+	int
+	default 8
+
+config VBOOT_RAMSTAGE_INDEX
+	hex
+	default 0x3
+
+endif
diff --git a/src/mainboard/google/lars/Kconfig.name b/src/mainboard/google/lars/Kconfig.name
new file mode 100644
index 0000000000..ccca6f0446
--- /dev/null
+++ b/src/mainboard/google/lars/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_GOOGLE_LARS
+	bool "Lars"
diff --git a/src/mainboard/google/lars/Makefile.inc b/src/mainboard/google/lars/Makefile.inc
new file mode 100644
index 0000000000..c5b536fa92
--- /dev/null
+++ b/src/mainboard/google/lars/Makefile.inc
@@ -0,0 +1,37 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013 Google Inc.
+## Copyright (C) 2015 Intel Corporation.
+##
+## 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.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc.
+##
+
+subdirs-y += spd
+
+romstage-y += boardid.c
+romstage-y += pei_data.c
+
+verstage-$(CONFIG_CHROMEOS) += chromeos.c
+romstage-$(CONFIG_CHROMEOS) += chromeos.c
+ramstage-$(CONFIG_CHROMEOS) += chromeos.c
+
+ramstage-$(CONFIG_EC_GOOGLE_CHROMEEC) += ec.c
+
+ramstage-y += boardid.c
+ramstage-y += mainboard.c
+ramstage-y += pei_data.c
+ramstage-y += ramstage.c
+
+smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
diff --git a/src/mainboard/google/lars/abuild.disabled b/src/mainboard/google/lars/abuild.disabled
new file mode 100644
index 0000000000..7d1725ac44
--- /dev/null
+++ b/src/mainboard/google/lars/abuild.disabled
@@ -0,0 +1,2 @@
+Successful builds for this board require the Skylake FSP binary and header files
+along with the Skylake microcode files from Intel.
diff --git a/src/mainboard/google/lars/acpi/chromeos.asl b/src/mainboard/google/lars/acpi/chromeos.asl
new file mode 100644
index 0000000000..d3ab569251
--- /dev/null
+++ b/src/mainboard/google/lars/acpi/chromeos.asl
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include "../gpio.h"
+
+Name (OIPG, Package () {
+	/* No physical recovery GPIO. */
+	Package () { 0x0001, 0, 0xFFFFFFFF, "INT344B:00" },
+	/* Firmware write protect GPIO. */
+	Package () { 0x0003, 1, GPIO_PCH_WP, "INT344B:00" },
+})
diff --git a/src/mainboard/google/lars/acpi/dptf.asl b/src/mainboard/google/lars/acpi/dptf.asl
new file mode 100644
index 0000000000..742ba7186f
--- /dev/null
+++ b/src/mainboard/google/lars/acpi/dptf.asl
@@ -0,0 +1,96 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#define DPTF_CPU_PASSIVE        80
+#define DPTF_CPU_CRITICAL       90
+#define DPTF_CPU_ACTIVE_AC0     90
+#define DPTF_CPU_ACTIVE_AC1     80
+#define DPTF_CPU_ACTIVE_AC2     70
+#define DPTF_CPU_ACTIVE_AC3     60
+#define DPTF_CPU_ACTIVE_AC4     50
+
+#define DPTF_TSR0_SENSOR_ID	0
+#define DPTF_TSR0_SENSOR_NAME	"TMP432_Internal"
+#define DPTF_TSR0_PASSIVE	48
+#define DPTF_TSR0_CRITICAL	70
+
+#define DPTF_TSR1_SENSOR_ID	1
+#define DPTF_TSR1_SENSOR_NAME	"TMP432_Power_top"
+#define DPTF_TSR1_PASSIVE	60
+#define DPTF_TSR1_CRITICAL	70
+
+#define DPTF_TSR2_SENSOR_ID	2
+#define DPTF_TSR2_SENSOR_NAME	"TMP432_CPU_bottom"
+#define DPTF_TSR2_PASSIVE	55
+#define DPTF_TSR2_CRITICAL	70
+
+#define DPTF_ENABLE_CHARGER
+
+/* Charger performance states, board-specific values from charger and EC */
+Name (CHPS, Package () {
+	Package () { 0, 0, 0, 0, 255, 0x6a4, "mA", 0 },	/* 1.7A (MAX) */
+	Package () { 0, 0, 0, 0, 24, 0x600, "mA", 0 },	/* 1.5A */
+	Package () { 0, 0, 0, 0, 16, 0x400, "mA", 0 },	/* 1.0A */
+	Package () { 0, 0, 0, 0, 8, 0x200, "mA", 0 },	/* 0.5A */
+	Package () { 0, 0, 0, 0, 0, 0x000, "mA", 0 },	/* 0.0A */
+})
+
+Name (DTRT, Package () {
+	/* CPU Throttle Effect on CPU */
+	Package () { \_SB.PCI0.B0D4, \_SB.PCI0.B0D4, 100, 50, 0, 0, 0, 0 },
+
+	/* CPU Effect on Temp Sensor 0 */
+	Package () { \_SB.PCI0.B0D4, \_SB.DPTF.TSR0, 100, 600, 0, 0, 0, 0 },
+
+#ifdef DPTF_ENABLE_CHARGER
+	/* Charger Effect on Temp Sensor 1 */
+	Package () { \_SB.DPTF.TCHG, \_SB.DPTF.TSR1, 200, 600, 0, 0, 0, 0 },
+#endif
+
+	/* CPU Effect on Temp Sensor 1 */
+	Package () { \_SB.PCI0.B0D4, \_SB.DPTF.TSR1, 100, 600, 0, 0, 0, 0 },
+
+	/* CPU Effect on Temp Sensor 2 */
+	Package () { \_SB.PCI0.B0D4, \_SB.DPTF.TSR2, 100, 600, 0, 0, 0, 0 },
+})
+
+Name (MPPC, Package ()
+{
+	0x2,		/* Revision */
+	Package () {	/* Power Limit 1 */
+		0,	/* PowerLimitIndex, 0 for Power Limit 1 */
+		1600,	/* PowerLimitMinimum */
+		6000,	/* PowerLimitMaximum */
+		1000,	/* TimeWindowMinimum */
+		1000,	/* TimeWindowMaximum */
+		200	/* StepSize */
+	},
+	Package () {	/* Power Limit 2 */
+		1,	/* PowerLimitIndex, 1 for Power Limit 2 */
+		8000,	/* PowerLimitMinimum */
+		8000,	/* PowerLimitMaximum */
+		1000,	/* TimeWindowMinimum */
+		1000,	/* TimeWindowMaximum */
+		1000	/* StepSize */
+	}
+})
+
+/* Include DPTF */
+#include <soc/intel/skylake/acpi/dptf/dptf.asl>
diff --git a/src/mainboard/google/lars/acpi/ec.asl b/src/mainboard/google/lars/acpi/ec.asl
new file mode 100644
index 0000000000..10ca834a2c
--- /dev/null
+++ b/src/mainboard/google/lars/acpi/ec.asl
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+/* mainboard configuration */
+#include "../ec.h"
+#include "../gpio.h"
+
+/* Enable EC backed ALS device in ACPI */
+#define EC_ENABLE_ALS_DEVICE
+
+/* Enable EC backed PD MCU device in ACPI */
+#define EC_ENABLE_PD_MCU_DEVICE
+
+/* ACPI code for EC functions */
+#include <ec/google/chromeec/acpi/ec.asl>
diff --git a/src/mainboard/google/lars/acpi/mainboard.asl b/src/mainboard/google/lars/acpi/mainboard.asl
new file mode 100644
index 0000000000..4f6251b9de
--- /dev/null
+++ b/src/mainboard/google/lars/acpi/mainboard.asl
@@ -0,0 +1,253 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include "../gpio.h"
+
+#define BOARD_TOUCHPAD_I2C_ADDR			0x15
+#define BOARD_TOUCHPAD_IRQ			TOUCHPAD_INT_L
+
+#define BOARD_TOUCHSCREEN_I2C_ADDR		0x10
+#define BOARD_TOUCHSCREEN_IRQ			TOUCHSCREEN_INT_L
+
+#define BOARD_HP_MIC_CODEC_I2C_ADDR		0x1a
+#define BOARD_HP_MIC_CODEC_IRQ			MIC_INT_L
+#define BOARD_LEFT_SPEAKER_AMP_I2C_ADDR		0x34
+#define BOARD_RIGHT_SPEAKER_AMP_I2C_ADDR	0x35
+
+Scope (\_SB)
+{
+	Device (LID0)
+	{
+		Name (_HID, EisaId ("PNP0C0D"))
+		Method (_LID, 0)
+		{
+			Return (\_SB.PCI0.LPCB.EC0.LIDS)
+		}
+
+		Name (_PRW, Package () { GPE_EC_WAKE, 5 })
+	}
+
+	Device (PWRB)
+	{
+		Name (_HID, EisaId ("PNP0C0C"))
+	}
+}
+
+/*
+ * LPC Trusted Platform Module
+ */
+Scope (\_SB.PCI0.LPCB)
+{
+	#include <drivers/pc80/tpm/acpi/tpm.asl>
+}
+
+/*
+ * WLAN connected to Root Port 1
+ */
+Scope (\_SB.PCI0.RP01)
+{
+	Device (WLAN)
+	{
+		Name (_ADR, 0x00000000)
+		Name (_DDN, "Wireless LAN")
+		Name (_PRW, Package () { GPE_WLAN_WAKE, 3 })
+	}
+}
+
+Scope (\_SB.PCI0.I2C0)
+{
+	/* Touchscreen */
+	Device (ELTS)
+	{
+		Name (_HID, "ELAN0001")
+		Name (_DDN, "Elan Touchscreen")
+		Name (_UID, 1)
+		Name (_S0W, 4)
+
+		Name (_CRS, ResourceTemplate ()
+		{
+			I2cSerialBus (
+				BOARD_TOUCHSCREEN_I2C_ADDR,
+				ControllerInitiated,
+				400000,
+				AddressingMode7Bit,
+				"\\_SB.PCI0.I2C0",
+			)
+			Interrupt (ResourceConsumer, Edge, ActiveLow)
+			{
+				BOARD_TOUCHSCREEN_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+}
+
+Scope (\_SB.PCI0.I2C1)
+{
+	/* Touchpad */
+	Device (ELTP)
+	{
+		Name (_HID, "ELAN0000")
+		Name (_DDN, "Elan Touchpad")
+		Name (_UID, 1)
+		Name (_S0W, 4)
+
+		Name (_CRS, ResourceTemplate ()
+		{
+			I2cSerialBus (
+				BOARD_TOUCHPAD_I2C_ADDR,
+				ControllerInitiated,
+				400000,
+				AddressingMode7Bit,
+				"\\_SB.PCI0.I2C1",
+			)
+			Interrupt (ResourceConsumer, Edge, ActiveLow)
+			{
+				BOARD_TOUCHPAD_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+}
+
+Scope (\_SB.PCI0.I2C4)
+{
+	/* Headphone Codec */
+	Device (HPMC)
+	{
+		Name (_HID, "10508825")
+		Name (_DDN, "NAU88L25 Codec")
+		Name (_UID, 1)
+		Name (_DSD, Package () {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+			/* Enable jack detection via JKDET pin */
+			Package () { "nuvoton,jkdet-enable", 1 },
+			/*
+			 * JKDET pin is pulled up by R389 on board.
+			 * JKDET pin polarity = active low
+			 */
+			Package () { "nuvoton,jkdet-pull-enable", 1 },
+			Package () { "nuvoton,jkdet-pull-up", 1 },
+			Package () { "nuvoton,jkdet-polarity", 1 },
+			/* VDDA(1.8) * 1.53 = 2.754 */
+			Package () { "nuvoton,micbias-voltage", 6 },
+			/* VREF Impedance = 125 kOhm */
+			Package () { "nuvoton,vref-impedance", 2 },
+			/*
+			 * Setup 4 buttons impedance according to
+			 * Android specification
+			 */
+			Package () { "nuvoton,sar-threshold-num", 4 },
+			Package () { "nuvoton,sar-threshold",
+				Package() { 0x0a, 0x14, 0x26, 0x73 } },
+			/*
+			 * Coeff 0-15 used to adjust threshold level
+			 * 0 for low resist range
+			 */
+			Package () { "nuvoton,sar-hysteresis", 0 },
+			/* SAR tracking gain based on 2.754 micbias-voltage */
+			Package () { "nuvoton,sar-voltage", 6 },
+			/* 100ms short key press debounce */
+			Package () { "nuvoton,short-key-debounce", 3 },
+			/* 2^(7+2) = 512 ms insert/eject debounce */
+			Package () { "nuvoton,jack-insert-debounce", 7 },
+			/* debounce not needed for eject normally */
+			Package () { "nuvoton,jack-eject-debounce", 0 },
+			}
+		})
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_HP_MIC_CODEC_I2C_ADDR,
+				ControllerInitiated,
+				400000,
+				AddressingMode7Bit,
+				"\\_SB.PCI0.I2C4",
+			)
+			Interrupt (ResourceConsumer, Level, ActiveLow)
+			{
+				BOARD_HP_MIC_CODEC_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+
+	/* Left Speaker Amp */
+	Device (SPKL)
+	{
+		Name (_HID, "INT343B")
+		Name (_DDN, "SSM4567 Speaker Amp")
+		Name (_UID, 0)
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_LEFT_SPEAKER_AMP_I2C_ADDR,
+				ControllerInitiated,
+				400000,
+				AddressingMode7Bit,
+				"\\_SB.PCI0.I2C4",
+			)
+		})
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+
+	/* Right Speaker Amp */
+	Device (SPKR)
+	{
+		Name (_HID, "INT343B")
+		Name (_DDN, "SSM4567 Speaker Amp")
+		Name (_UID, 1)
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				BOARD_RIGHT_SPEAKER_AMP_I2C_ADDR,
+				ControllerInitiated,
+				400000,
+				AddressingMode7Bit,
+				"\\_SB.PCI0.I2C4",
+			)
+		})
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+}
diff --git a/src/mainboard/google/lars/acpi/superio.asl b/src/mainboard/google/lars/acpi/superio.asl
new file mode 100644
index 0000000000..822821e9df
--- /dev/null
+++ b/src/mainboard/google/lars/acpi/superio.asl
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+/* mainboard configuration */
+#include "../ec.h"
+
+#define SIO_EC_MEMMAP_ENABLE     // EC Memory Map Resources
+#define SIO_EC_HOST_ENABLE       // EC Host Interface Resources
+#define SIO_EC_ENABLE_PS2K       // Enable PS/2 Keyboard
+
+/* ACPI code for EC SuperIO functions */
+#include <ec/google/chromeec/acpi/superio.asl>
diff --git a/src/mainboard/google/lars/acpi_tables.c b/src/mainboard/google/lars/acpi_tables.c
new file mode 100644
index 0000000000..72a588813a
--- /dev/null
+++ b/src/mainboard/google/lars/acpi_tables.c
@@ -0,0 +1,19 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
diff --git a/src/mainboard/google/lars/boardid.c b/src/mainboard/google/lars/boardid.c
new file mode 100644
index 0000000000..59c6fff3b6
--- /dev/null
+++ b/src/mainboard/google/lars/boardid.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <boardid.h>
+#include <ec/google/chromeec/ec.h>
+
+uint8_t board_id(void)
+{
+	MAYBE_STATIC int id = -1;
+
+	if (id < 0)
+		id = google_chromeec_get_board_version();
+
+	return id;
+}
diff --git a/src/mainboard/google/lars/boardid.h b/src/mainboard/google/lars/boardid.h
new file mode 100644
index 0000000000..ef003f3ead
--- /dev/null
+++ b/src/mainboard/google/lars/boardid.h
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef _BOARDID_H_
+#define _BOARDID_H_
+
+#define SCRD_SKU1	0x3
+#define SCRD_SKU2	0x4
+#define SCRD_SKU3	0x1
+#define SCRD_SKU4	0x2
+#define SCRD_SKU5	0x5
+#define SCRD_SKU6	0x6
+
+#endif
diff --git a/src/mainboard/google/lars/chromeos.c b/src/mainboard/google/lars/chromeos.c
new file mode 100644
index 0000000000..905de137ac
--- /dev/null
+++ b/src/mainboard/google/lars/chromeos.c
@@ -0,0 +1,95 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <rules.h>
+#include <gpio.h>
+#include <soc/gpio.h>
+#include <string.h>
+#include <ec/google/chromeec/ec.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+#include "gpio.h"
+#include "ec.h"
+
+#if ENV_RAMSTAGE
+#include <boot/coreboot_tables.h>
+
+void fill_lb_gpios(struct lb_gpios *gpios)
+{
+	struct lb_gpio *start_gpio = gpios->gpios;
+	struct lb_gpio *gpio = start_gpio;
+
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "write protect",
+		     get_write_protect_state());
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "recovery",
+		     get_recovery_mode_switch());
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "developer",
+		     get_developer_mode_switch());
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "lid",
+		     get_lid_switch());
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "power", 0);
+	fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "oprom", gfx_get_init_done());
+	fill_lb_gpio(gpio++, GPIO_EC_IN_RW, ACTIVE_HIGH, "EC in RW",
+		     gpio_get(GPIO_EC_IN_RW));
+
+	gpios->count = gpio - start_gpio;
+	gpios->size = sizeof(*gpios) + (gpios->count * sizeof(*gpio));
+}
+#endif /* ENV_RAMSTAGE */
+
+int get_lid_switch(void)
+{
+	/* Read lid switch state from the EC. */
+	return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN);
+}
+
+int get_developer_mode_switch(void)
+{
+	/* No physical developer mode switch. */
+	return 0;
+}
+
+int get_recovery_mode_switch(void)
+{
+	/* Check for dedicated recovery switch first. */
+	if (google_chromeec_get_switches() & EC_SWITCH_DEDICATED_RECOVERY)
+		return 1;
+
+	/* Otherwise check if the EC has posted the keyboard recovery event. */
+	return !!(google_chromeec_get_events_b() &
+		  EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
+}
+
+int clear_recovery_mode_switch(void)
+{
+	/* Clear keyboard recovery event. */
+	return google_chromeec_clear_events_b(
+		EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
+}
+
+int get_write_protect_state(void)
+{
+	/* Read PCH_WP GPIO. */
+	return gpio_get(GPIO_PCH_WP);
+}
diff --git a/src/mainboard/google/lars/cmos.layout b/src/mainboard/google/lars/cmos.layout
new file mode 100644
index 0000000000..32bf05dab6
--- /dev/null
+++ b/src/mainboard/google/lars/cmos.layout
@@ -0,0 +1,140 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2007-2008 coresystems GmbH
+## Copyright (C) 2015 Intel Corporation.
+##
+## 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.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc.
+##
+
+# -----------------------------------------------------------------
+entries
+
+#start-bit length  config config-ID    name
+#0            8       r       0        seconds
+#8            8       r       0        alarm_seconds
+#16           8       r       0        minutes
+#24           8       r       0        alarm_minutes
+#32           8       r       0        hours
+#40           8       r       0        alarm_hours
+#48           8       r       0        day_of_week
+#56           8       r       0        day_of_month
+#64           8       r       0        month
+#72           8       r       0        year
+# -----------------------------------------------------------------
+# Status Register A
+#80           4       r       0        rate_select
+#84           3       r       0        REF_Clock
+#87           1       r       0        UIP
+# -----------------------------------------------------------------
+# Status Register B
+#88           1       r       0        auto_switch_DST
+#89           1       r       0        24_hour_mode
+#90           1       r       0        binary_values_enable
+#91           1       r       0        square-wave_out_enable
+#92           1       r       0        update_finished_enable
+#93           1       r       0        alarm_interrupt_enable
+#94           1       r       0        periodic_interrupt_enable
+#95           1       r       0        disable_clock_updates
+# -----------------------------------------------------------------
+# Status Register C
+#96           4       r       0        status_c_rsvd
+#100          1       r       0        uf_flag
+#101          1       r       0        af_flag
+#102          1       r       0        pf_flag
+#103          1       r       0        irqf_flag
+# -----------------------------------------------------------------
+# Status Register D
+#104          7       r       0        status_d_rsvd
+#111          1       r       0        valid_cmos_ram
+# -----------------------------------------------------------------
+# Diagnostic Status Register
+#112          8       r       0        diag_rsvd1
+
+# -----------------------------------------------------------------
+0          120       r       0        reserved_memory
+#120        264       r       0        unused
+
+# -----------------------------------------------------------------
+# RTC_BOOT_BYTE (coreboot hardcoded)
+384          1       e       4        boot_option
+385          1       e       4        last_boot
+388          4       r       0        reboot_bits
+#390          2       r       0        unused?
+
+# -----------------------------------------------------------------
+# coreboot config options: console
+392          3       e       5        baud_rate
+395          4       e       6        debug_level
+#399          1       r       0        unused
+
+# coreboot config options: cpu
+400          1       e       2        hyper_threading
+#401          7       r       0        unused
+
+# coreboot config options: southbridge
+408          1       e       1        nmi
+409          2       e       7        power_on_after_fail
+#411          5       r       0        unused
+
+# coreboot config options: bootloader
+#Used by ChromeOS:
+416        128       r        0        vbnv
+#544        440       r       0        unused
+
+# SandyBridge MRC Scrambler Seed values
+896         32        r       0        mrc_scrambler_seed
+928         32        r       0        mrc_scrambler_seed_s3
+
+# coreboot config options: check sums
+984         16       h       0        check_sum
+#1000        24       r       0        amd_reserved
+
+# -----------------------------------------------------------------
+
+enumerations
+
+#ID value   text
+1     0     Disable
+1     1     Enable
+2     0     Enable
+2     1     Disable
+4     0     Fallback
+4     1     Normal
+5     0     115200
+5     1     57600
+5     2     38400
+5     3     19200
+5     4     9600
+5     5     4800
+5     6     2400
+5     7     1200
+6     1     Emergency
+6     2     Alert
+6     3     Critical
+6     4     Error
+6     5     Warning
+6     6     Notice
+6     7     Info
+6     8     Debug
+6     9     Spew
+7     0     Disable
+7     1     Enable
+7     2     Keep
+# -----------------------------------------------------------------
+checksums
+
+checksum 392 415 984
+
+
diff --git a/src/mainboard/google/lars/devicetree.cb b/src/mainboard/google/lars/devicetree.cb
new file mode 100644
index 0000000000..e377a51c2c
--- /dev/null
+++ b/src/mainboard/google/lars/devicetree.cb
@@ -0,0 +1,138 @@
+chip soc/intel/skylake
+
+	# Enable deep Sx states
+	register "deep_s3_enable" = "0"
+	register "deep_s5_enable" = "1"
+	register "deep_sx_config" = "DSX_EN_LAN_WAKE_PIN"
+
+	# GPE configuration
+	# Note that GPE events called out in ASL code rely on this
+	# route. i.e. If this route changes then the affected GPE
+	# offset bits also need to be changed.
+	register "gpe0_dw0" = "GPP_B"
+	register "gpe0_dw1" = "GPP_D"
+	register "gpe0_dw2" = "GPP_E"
+
+	# EC host command range is in 0x800-0x8ff
+	register "gen1_dec" = "0x00fc0801"
+
+	# Enable DPTF
+	register "dptf_enable" = "1"
+
+	# FSP Configuration
+	register "ProbelessTrace" = "0"
+	register "EnableLan" = "0"
+	register "EnableSata" = "0"
+	register "SataSalpSupport" = "0"
+	register "SataMode" = "0"
+	register "SataPortsEnable[0]" = "0"
+	register "EnableAzalia" = "1"
+	register "DspEnable" = "1"
+	register "IoBufferOwnership" = "3"
+	register "EnableTraceHub" = "0"
+	register "XdciEnable" = "0"
+	register "SsicPortEnable" = "0"
+	register "SmbusEnable" = "1"
+	register "Cio2Enable" = "0"
+	register "ScsEmmcEnabled" = "1"
+	register "ScsEmmcHs400Enabled" = "1"
+	register "ScsSdCardEnabled" = "2"
+	register "IshEnable" = "0"
+	register "PttSwitch" = "0"
+	register "InternalGfx" = "1"
+	register "SkipExtGfxScan" = "1"
+	register "Device4Enable" = "1"
+
+	# Enable Root port 1 and 5.
+	register "PcieRpEnable[0]" = "1"
+	register "PcieRpEnable[4]" = "1"
+	# Enable CLKREQ#
+	register "PcieRpClkReqSupport[0]" = "1"
+	register "PcieRpClkReqSupport[4]" = "1"
+	# RP 1 uses SRCCLKREQ1# while RP 5 uses SRCCLKREQ2#
+	register "PcieRpClkReqNumber[0]" = "1"
+	register "PcieRpClkReqNumber[4]" = "2"
+
+	register "usb2_ports[0]" = "USB2_PORT_TYPE_C"  # Type-C Port 1
+	register "usb2_ports[1]" = "USB2_PORT_TYPE_C"  # Type-C Port 2
+	register "usb2_ports[2]" = "USB2_PORT_MID"     # Bluetooth
+	register "usb2_ports[4]" = "USB2_PORT_MID"     # Type-A Port (card)
+	register "usb2_ports[6]" = "USB2_PORT_FLEX"    # Camera
+	register "usb2_ports[8]" = "USB2_PORT_LONG"    # Type-A Port (board)
+
+	register "usb3_ports[0]" = "USB3_PORT_DEFAULT" # Type-C Port 1
+	register "usb3_ports[1]" = "USB3_PORT_DEFAULT" # Type-C Port 2
+	register "usb3_ports[2]" = "USB3_PORT_DEFAULT" # Type-A Port (card)
+	register "usb3_ports[3]" = "USB3_PORT_DEFAULT" # Type-A Port (board)
+
+	# Must leave UART0 enabled or SD/eMMC will not work as PCI
+	register "SerialIoDevMode" = "{ \
+		[PchSerialIoIndexI2C0]  = PchSerialIoPci, \
+		[PchSerialIoIndexI2C1]  = PchSerialIoPci, \
+		[PchSerialIoIndexI2C2]  = PchSerialIoDisabled, \
+		[PchSerialIoIndexI2C3]  = PchSerialIoDisabled, \
+		[PchSerialIoIndexI2C4]  = PchSerialIoPci, \
+		[PchSerialIoIndexI2C5]  = PchSerialIoDisabled, \
+		[PchSerialIoIndexSpi0]  = PchSerialIoDisabled, \
+		[PchSerialIoIndexSpi1]  = PchSerialIoDisabled, \
+		[PchSerialIoIndexUart0] = PchSerialIoPci, \
+		[PchSerialIoIndexUart1] = PchSerialIoDisabled, \
+		[PchSerialIoIndexUart2] = PchSerialIoSkipInit, \
+	}"
+
+	device cpu_cluster 0 on
+		device lapic 0 on end
+	end
+	device domain 0 on
+		device pci 00.0 on  end # Host Bridge
+		device pci 02.0 on  end # Integrated Graphics Device
+		device pci 14.0 on  end # USB xHCI
+		device pci 14.1 off end # USB xDCI (OTG)
+		device pci 14.2 on  end # Thermal Subsystem
+		device pci 15.0 on  end # I2C #0
+		device pci 15.1 on  end # I2C #1
+		device pci 15.2 off end # I2C #2
+		device pci 15.3 off end # I2C #3
+		device pci 16.0 on  end # Management Engine Interface 1
+		device pci 16.1 off end # Management Engine Interface 2
+		device pci 16.2 off end # Management Engine IDE-R
+		device pci 16.3 off end # Management Engine KT Redirection
+		device pci 16.4 off end # Management Engine Interface 3
+		device pci 17.0 off end # SATA
+		device pci 19.0 on  end # UART #2
+		device pci 19.1 off end # I2C #5
+		device pci 19.2 on  end # I2C #4
+		device pci 1c.0 on  end # PCI Express Port 1
+		device pci 1c.1 off end # PCI Express Port 2
+		device pci 1c.2 off end # PCI Express Port 3
+		device pci 1c.3 off end # PCI Express Port 4
+		device pci 1c.4 on  end # PCI Express Port 5
+		device pci 1c.5 off end # PCI Express Port 6
+		device pci 1c.6 off end # PCI Express Port 7
+		device pci 1c.7 off end # PCI Express Port 8
+		device pci 1d.0 off end # PCI Express Port 9
+		device pci 1d.1 off end # PCI Express Port 10
+		device pci 1d.2 off end # PCI Express Port 11
+		device pci 1d.3 off end # PCI Express Port 12
+		device pci 1e.0 on  end # UART #0
+		device pci 1e.1 off end # UART #1
+		device pci 1e.2 off end # GSPI #0
+		device pci 1e.3 off end # GSPI #1
+		device pci 1e.4 on  end # eMMC
+		device pci 1e.5 off end # SDIO
+		device pci 1e.6 on  end # SDCard
+		device pci 1f.0 on
+			chip drivers/pc80/tpm
+				device pnp 0c31.0 on end
+			end
+			chip ec/google/chromeec
+				device pnp 0c09.0 on end
+			end
+		end # LPC Interface
+		device pci 1f.2 on  end # Power Management Controller
+		device pci 1f.3 on  end # Intel HDA
+		device pci 1f.4 on  end # SMBus
+		device pci 1f.5 on  end # PCH SPI
+		device pci 1f.6 off end # GbE
+	end
+end
diff --git a/src/mainboard/google/lars/dsdt.asl b/src/mainboard/google/lars/dsdt.asl
new file mode 100644
index 0000000000..ba1b2637c1
--- /dev/null
+++ b/src/mainboard/google/lars/dsdt.asl
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2015 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+DefinitionBlock(
+	"dsdt.aml",
+	"DSDT",
+	0x05,		// DSDT revision: ACPI v5.0
+	"COREv4",	// OEM id
+	"COREBOOT",	// OEM table id
+	0x20110725	// OEM revision
+)
+{
+	// Some generic macros
+	#include <soc/intel/skylake/acpi/platform.asl>
+
+	// global NVS and variables
+	#include <soc/intel/skylake/acpi/globalnvs.asl>
+
+	// CPU
+	#include <soc/intel/skylake/acpi/cpu.asl>
+
+	Scope (\_SB) {
+		Device (PCI0)
+		{
+			#include <soc/intel/skylake/acpi/systemagent.asl>
+			#include <soc/intel/skylake/acpi/pch.asl>
+		}
+
+		// Dynamic Platform Thermal Framework
+		#include "acpi/dptf.asl"
+	}
+
+	// Chrome OS specific
+	#include "acpi/chromeos.asl"
+	#include <vendorcode/google/chromeos/acpi/chromeos.asl>
+
+	// Chipset specific sleep states
+	#include <soc/intel/skylake/acpi/sleepstates.asl>
+
+	// Mainboard specific
+	#include "acpi/mainboard.asl"
+}
diff --git a/src/mainboard/google/lars/ec.c b/src/mainboard/google/lars/ec.c
new file mode 100644
index 0000000000..5473cfcf3b
--- /dev/null
+++ b/src/mainboard/google/lars/ec.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <arch/acpi.h>
+#include <console/console.h>
+#include <ec/google/chromeec/ec.h>
+#include "ec.h"
+
+void mainboard_ec_init(void)
+{
+	printk(BIOS_DEBUG, "mainboard: EC init\n");
+
+	if (acpi_is_wakeup_s3()) {
+		google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
+					   MAINBOARD_EC_S3_WAKE_EVENTS);
+
+		/* Disable SMI and wake events */
+		google_chromeec_set_smi_mask(0);
+
+		/* Clear pending events */
+		while (google_chromeec_get_event() != 0)
+			;
+
+		/* Restore SCI event mask */
+		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
+	} else {
+		google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
+					   MAINBOARD_EC_S5_WAKE_EVENTS);
+	}
+
+	/* Clear wake event mask */
+	google_chromeec_set_wake_mask(0);
+}
diff --git a/src/mainboard/google/lars/ec.h b/src/mainboard/google/lars/ec.h
new file mode 100644
index 0000000000..6408815aad
--- /dev/null
+++ b/src/mainboard/google/lars/ec.h
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef MAINBOARD_EC_H
+#define MAINBOARD_EC_H
+
+#include <ec/google/chromeec/ec_commands.h>
+
+#define MAINBOARD_EC_SCI_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED)        |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN)          |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_CONNECTED)      |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED)   |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_LOW)       |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_CRITICAL)  |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY)           |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_STATUS)    |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_THRESHOLD) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_OVERLOAD)  |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_START)    |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_STOP)     |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_USB_CHARGER)       |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU))
+
+#define MAINBOARD_EC_SMI_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED))
+
+/* EC can wake from S5 with lid or power button */
+#define MAINBOARD_EC_S5_WAKE_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN)     |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON))
+
+/* EC can wake from S3 with lid or power button or key press */
+#define MAINBOARD_EC_S3_WAKE_EVENTS \
+	(MAINBOARD_EC_S5_WAKE_EVENTS |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEY_PRESSED))
+
+/* Log EC wake events plus EC shutdown events */
+#define MAINBOARD_EC_LOG_EVENTS \
+	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_SHUTDOWN) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY_SHUTDOWN)|\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PANIC))
+
+#ifndef __ACPI__
+extern void mainboard_ec_init(void);
+#endif
+
+#endif
diff --git a/src/mainboard/google/lars/fadt.c b/src/mainboard/google/lars/fadt.c
new file mode 100644
index 0000000000..83fe860006
--- /dev/null
+++ b/src/mainboard/google/lars/fadt.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <string.h>
+#include <soc/acpi.h>
+
+void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
+{
+	acpi_header_t *header = &(fadt->header);
+
+	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
+	memcpy(header->signature, "FACP", 4);
+	header->length = sizeof(acpi_fadt_t);
+	header->revision = 5;
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+	header->asl_compiler_revision = 1;
+
+	fadt->firmware_ctrl = (unsigned long) facs;
+	fadt->dsdt = (unsigned long) dsdt;
+	fadt->model = 1;
+	fadt->preferred_pm_profile = PM_MOBILE;
+
+	fadt->x_firmware_ctl_l = (unsigned long)facs;
+	fadt->x_firmware_ctl_h = 0;
+	fadt->x_dsdt_l = (unsigned long)dsdt;
+	fadt->x_dsdt_h = 0;
+
+	acpi_fill_in_fadt(fadt);
+
+	header->checksum = acpi_checksum((void *) fadt, header->length);
+}
diff --git a/src/mainboard/google/lars/gpio.h b/src/mainboard/google/lars/gpio.h
new file mode 100755
index 0000000000..3c4c127fa0
--- /dev/null
+++ b/src/mainboard/google/lars/gpio.h
@@ -0,0 +1,231 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef MAINBOARD_GPIO_H
+#define MAINBOARD_GPIO_H
+
+#include <soc/gpe.h>
+#include <soc/gpio.h>
+
+/* EC in RW */
+#define GPIO_EC_IN_RW		GPP_C6
+
+/* BIOS Flash Write Protect */
+#define GPIO_PCH_WP		GPP_C23
+
+/* Memory configuration board straps */
+#define GPIO_MEM_CONFIG_0	GPP_C12
+#define GPIO_MEM_CONFIG_1	GPP_C13
+#define GPIO_MEM_CONFIG_2	GPP_C14
+#define GPIO_MEM_CONFIG_3	GPP_C15
+
+/* EC wake is LAN_WAKE# which is a special DeepSX wake pin */
+#define GPE_EC_WAKE		GPE0_LAN_WAK
+
+/* GPP_B16 is WLAN_WAKE. GPP_B group is routed to DW0 in the GPE0 block */
+#define GPE_WLAN_WAKE		GPE0_DW0_16
+
+/* Input device interrupt configuration */
+#define TOUCHPAD_INT_L		GPP_B3_IRQ
+#define TOUCHSCREEN_INT_L	GPP_E7_IRQ
+#define MIC_INT_L		GPP_F10_IRQ
+
+/* GPP_E16 is EC_SCI_L. GPP_E group is routed to DW2 in the GPE0 block */
+#define EC_SCI_GPI		GPE0_DW2_16
+#define EC_SMI_GPI		GPP_E15
+
+#ifndef __ACPI__
+/* Pad configuration in ramstage. */
+static const struct pad_config gpio_table[] = {
+/* EC_PCH_RCIN */	PAD_CFG_NF(GPP_A0, NONE, DEEP, NF1),
+/* LPC_LAD_0 */		PAD_CFG_NF(GPP_A1, NONE, DEEP, NF1),
+/* LPC_LAD_1 */		PAD_CFG_NF(GPP_A2, NONE, DEEP, NF1),
+/* LPC_LAD_2 */		PAD_CFG_NF(GPP_A3, NONE, DEEP, NF1),
+/* LPC_LAD_3 */		PAD_CFG_NF(GPP_A4, NONE, DEEP, NF1),
+/* LPC_FRAME */		PAD_CFG_NF(GPP_A5, NONE, DEEP, NF1),
+/* LPC_SERIRQ */	PAD_CFG_NF(GPP_A6, NONE, DEEP, NF1),
+/* PIRQA# */		/* GPP_A7 */
+/* LPC_CLKRUN */	PAD_CFG_NF(GPP_A8, NONE, DEEP, NF1),
+/* EC_LPC_CLK */	PAD_CFG_NF(GPP_A9, NONE, DEEP, NF1),
+/* PCH_LPC_CLK */	/* GPP_A10 */
+/* EC_HID_INT */	/* GPP_A11 */
+/* ISH_KB_PROX_INT */	PAD_CFG_GPO(GPP_A12, 0, DEEP),
+/* PCH_SUSPWRACB */	PAD_CFG_NF(GPP_A13, NONE, DEEP, NF1),
+/* PM_SUS_STAT */	PAD_CFG_NF(GPP_A14, NONE, DEEP, NF1),
+/* PCH_SUSACK */	PAD_CFG_NF(GPP_A15, NONE, DEEP, NF1),
+/* SD_1P8_SEL */	PAD_CFG_NF(GPP_A16, NONE, DEEP, NF1),
+/* SD_PWR_EN */		PAD_CFG_NF(GPP_A17, NONE, DEEP, NF1),
+/* ACCEL INTERRUPT */	PAD_CFG_NF(GPP_A18, NONE, DEEP, NF1),
+/* ISH_GP1 */		/* GPP_A19 */
+/* GYRO_DRDY */		PAD_CFG_NF(GPP_A20, NONE, DEEP, NF1),
+/* FLIP_ACCEL_INT */	PAD_CFG_NF(GPP_A21, NONE, DEEP, NF1),
+/* GYRO_INT */		PAD_CFG_NF(GPP_A22, NONE, DEEP, NF1),
+/* ISH_GP5 */		/* GPP_A23 */
+/* CORE_VID0 */		/* GPP_B0 */
+/* CORE_VID1 */		/* GPP_B1 */
+/* HSJ_MIC_DET */	PAD_CFG_GPI(GPP_B2, NONE, DEEP),
+/* TRACKPAD_INT */	PAD_CFG_GPI_APIC(GPP_B3, NONE, DEEP),
+/* BT_RF_KILL */	PAD_CFG_GPO(GPP_B4, 0, DEEP),
+/* SRCCLKREQ0# */	/* GPP_B5 */
+/* WIFI_CLK_REQ */	PAD_CFG_NF(GPP_B6, NONE, DEEP, NF1),
+/* KEPLR_CLK_REQ */	PAD_CFG_NF(GPP_B7, NONE, DEEP, NF1),
+/* SRCCLKREQ3# */	/* GPP_B8 */
+/* SSD_CLK_REQ */	PAD_CFG_NF(GPP_B9, NONE, DEEP, NF1),
+/* SRCCLKREQ5# */	/* GPP_B10 */
+/* MPHY_EXT_PWR_GATE */	PAD_CFG_NF(GPP_B11, NONE, DEEP, NF1),
+/* PM_SLP_S0 */		PAD_CFG_NF(GPP_B12, NONE, DEEP, NF1),
+/* PCH_PLT_RST */	PAD_CFG_NF(GPP_B13, NONE, DEEP, NF1),
+/* GPP_B_14_SPKR */	PAD_CFG_GPI(GPP_B14, NONE, DEEP),
+/* GSPI0_CS# */		/* GPP_B15 */
+/* WLAN_PCIE_WAKE */	PAD_CFG_GPI_ACPI_SCI(GPP_B16, NONE, DEEP, YES),
+/* SSD_PCIE_WAKE */	PAD_CFG_GPI(GPP_B17, NONE, DEEP),
+/* GSPI0_MOSI */	/* GPP_B18 */
+/* CCODEC_SPI_CS */	PAD_CFG_NF(GPP_B19, NONE, DEEP, NF1),
+/* CODEC_SPI_CLK */	PAD_CFG_NF(GPP_B20, NONE, DEEP, NF1),
+/* CODEC_SPI_MISO */	PAD_CFG_NF(GPP_B21, NONE, DEEP, NF1),
+/* CODEC_SPI_MOSI */	PAD_CFG_NF(GPP_B22, NONE, DEEP, NF1),
+/* SM1ALERT# */		PAD_CFG_GPO(GPP_B23, 0, DEEP),
+/* SMB_CLK */		PAD_CFG_NF(GPP_C0, NONE, DEEP, NF1),
+/* SMB_DATA */		PAD_CFG_NF(GPP_C1, NONE, DEEP, NF1),
+/* SMBALERT# */		PAD_CFG_GPO(GPP_C2, 0, DEEP),
+/* M2_WWAN_PWREN */	PAD_CFG_GPO(GPP_C3, 0, DEEP),
+/* SML0DATA */		PAD_CFG_GPI(GPP_C4, NONE, DEEP),
+/* SML0ALERT# */	PAD_CFG_GPO(GPP_C5, 0, DEEP),
+/* EC_IN_RW */		PAD_CFG_GPI(GPP_C6, NONE, DEEP),
+/* USB_CTL */		PAD_CFG_GPO(GPP_C7, 1, DEEP),
+/* UART0_RXD */		/* GPP_C8 */
+/* UART0_TXD */		/* GPP_C9 */
+/* NFC_RST* */		PAD_CFG_GPO(GPP_C10, 0, DEEP),
+/* EN_PP3300_KEPLER */	PAD_CFG_TERM_GPO(GPP_C11, 1, 20K_PD, DEEP),
+/* PCH_MEM_CFG0 */	PAD_CFG_GPI(GPP_C12, NONE, DEEP),
+/* PCH_MEM_CFG1 */	PAD_CFG_GPI(GPP_C13, NONE, DEEP),
+/* PCH_MEM_CFG2 */	PAD_CFG_GPI(GPP_C14, NONE, DEEP),
+/* PCH_MEM_CFG3 */	PAD_CFG_GPI(GPP_C15, NONE, DEEP),
+/* I2C0_SDA */		PAD_CFG_NF(GPP_C16, 5K_PU, DEEP, NF1),
+/* I2C0_SCL */		PAD_CFG_NF(GPP_C17, 5K_PU, DEEP, NF1),
+/* I2C1_SDA */		PAD_CFG_NF(GPP_C18, NONE, DEEP, NF1),
+/* I2C1_SCL */		PAD_CFG_NF(GPP_C19, NONE, DEEP, NF1),
+/* GD_UART2_RXD */	PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),
+/* GD_UART2_TXD */	PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
+/* TCH_PNL_PWREN */	PAD_CFG_GPO(GPP_C22, 1, DEEP),
+/* SPI_WP_STATUS */	PAD_CFG_GPI(GPP_C23, 20K_PU, DEEP),
+/* ITCH_SPI_CS */	/* GPP_D0 */
+/* ITCH_SPI_CLK */	/* GPP_D1 */
+/* ITCH_SPI_MISO_1 */	/* GPP_D2 */
+/* ITCH_SPI_MISO_0 */	/* GPP_D3 */
+/* CAM_FLASH_STROBE */	PAD_CFG_NF(GPP_D4, NONE, DEEP, NF1),
+/* EN_PP3300_DX_EMMC */	PAD_CFG_GPO(GPP_D5, 1, DEEP),
+/* EN_PP1800_DX_EMMC */	PAD_CFG_GPO(GPP_D6, 1, DEEP),
+/* SH_I2C1_SDA */	PAD_CFG_NF(GPP_D7, NONE, DEEP, NF1),
+/* SH_I2C1_SCL */	PAD_CFG_NF(GPP_D8, NONE, DEEP, NF1),
+			PAD_CFG_GPO(GPP_D9, 0, DEEP),
+/* USB_A0_ILIM_SEL */	PAD_CFG_GPO(GPP_D10, 1, DEEP),
+/* USB_A1_ILIM_SEL */	PAD_CFG_GPO(GPP_D11, 1, DEEP),
+/* EN_PP3300_DX_CAM */	PAD_CFG_GPO(GPP_D12, 1, DEEP),
+/* EN_PP1800_DX_AUDIO */PAD_CFG_GPO(GPP_D13, 1, DEEP),
+/* ISH_UART0_TXD */	/* GPP_D14 */
+/* ISH_UART0_RTS */	/* GPP_D15 */
+/* ISH_UART0_CTS */	/* GPP_D16 */
+/* DMIC_CLK_1 */	PAD_CFG_NF(GPP_D17, NONE, DEEP, NF1),
+/* DMIC_DATA_1 */	PAD_CFG_NF(GPP_D18, NONE, DEEP, NF1),
+/* DMIC_CLK_0 */	PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1),
+/* DMIC_DATA_0 */	PAD_CFG_NF(GPP_D20, NONE, DEEP, NF1),
+/* ITCH_SPI_D2 */	/* GPP_D21 */
+/* ITCH_SPI_D3 */	/* GPP_D22 */
+/* I2S_MCLK */		PAD_CFG_NF(GPP_D23, NONE, DEEP, NF1),
+/* SPI_TPM_IRQ */	PAD_CFG_GPI_APIC(GPP_E0, NONE, DEEP),
+/* SATAXPCIE1 */	/* GPP_E1 */
+/* SSD_PEDET */		PAD_CFG_GPI(GPP_E2, NONE, DEEP),
+/* CPU_GP0 */		/* GPP_E3 */
+/* SSD_SATA_DEVSLP */	PAD_CFG_GPO(GPP_E4, 0, DEEP),
+/* SATA_DEVSLP1 */	/* GPP_E5 */
+/* SATA_DEVSLP2 */	/* GPP_E6 */
+/* TCH_PNL_INTR* */	PAD_CFG_GPI_APIC(GPP_E7, NONE, DEEP),
+/* SATALED# */		/* GPP_E8 */
+/* USB2_OC_0 */		PAD_CFG_NF(GPP_E9, NONE, DEEP, NF1),
+/* USB2_OC_1 */		PAD_CFG_NF(GPP_E10, NONE, DEEP, NF1),
+/* USB2_OC_2 */		PAD_CFG_NF(GPP_E11, NONE, DEEP, NF1),
+/* USB2_OC_3 */		PAD_CFG_NF(GPP_E12, NONE, DEEP, NF1),
+/* DDI1_HPD */		PAD_CFG_NF(GPP_E13, NONE, DEEP, NF1),
+/* DDI2_HPD */		PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),
+/* EC_SMI */		PAD_CFG_GPI_ACPI_SMI(GPP_E15, NONE, DEEP, YES),
+/* EC_SCI */		PAD_CFG_GPI_ACPI_SCI(GPP_E16, NONE, DEEP, YES),
+/* EDP_HPD */		PAD_CFG_NF(GPP_E17, NONE, DEEP, NF1),
+/* DDPB_CTRLCLK */	PAD_CFG_NF(GPP_E18, NONE, DEEP, NF1),
+/* DDPB_CTRLDATA */	PAD_CFG_NF(GPP_E19, NONE, DEEP, NF1),
+/* DDPC_CTRLCLK */	PAD_CFG_NF(GPP_E20, NONE, DEEP, NF1),
+/* DDPC_CTRLDATA */	PAD_CFG_NF(GPP_E21, NONE, DEEP, NF1),
+/* DDPD_CTRLCLK */	PAD_CFG_GPI(GPP_E22, NONE, DEEP),
+/* TCH_PNL_RST */	PAD_CFG_GPO(GPP_E23, 1, DEEP),
+/* I2S2_SCLK */		PAD_CFG_GPI(GPP_F0, NONE, DEEP),
+/* I2S2_SFRM */		PAD_CFG_GPI(GPP_F1, NONE, DEEP),
+/* I2S2_TXD */		PAD_CFG_GPI(GPP_F2, NONE, DEEP),
+/* I2S2_RXD */		PAD_CFG_GPI(GPP_F3, NONE, DEEP),
+/* I2C2_SDA */		/* GPP_F4 */
+/* I2C2_SCL */		/* GPP_F5 */
+/* I2C3_SDA */		/* GPP_F6 */
+/* I2C3_SCL */		/* GPP_F7 */
+/* I2C4_SDA */		PAD_CFG_NF(GPP_F8, NONE, DEEP, NF1),
+/* I2C4_SDA */		PAD_CFG_NF(GPP_F9, NONE, DEEP, NF1),
+/* AUDIO_IRQ */		PAD_CFG_GPI_APIC(GPP_F10, NONE, DEEP),
+/* I2C5_SCL */		/* GPP_F11 */
+/* EMMC_CMD */		PAD_CFG_NF(GPP_F12, NONE, DEEP, NF1),
+/* EMMC_DATA0 */	PAD_CFG_NF(GPP_F13, NONE, DEEP, NF1),
+/* EMMC_DATA1 */	PAD_CFG_NF(GPP_F14, NONE, DEEP, NF1),
+/* EMMC_DATA2 */	PAD_CFG_NF(GPP_F15, NONE, DEEP, NF1),
+/* EMMC_DATA3 */	PAD_CFG_NF(GPP_F16, NONE, DEEP, NF1),
+/* EMMC_DATA4 */	PAD_CFG_NF(GPP_F17, NONE, DEEP, NF1),
+/* EMMC_DATA5 */	PAD_CFG_NF(GPP_F18, NONE, DEEP, NF1),
+/* EMMC_DATA6 */	PAD_CFG_NF(GPP_F19, NONE, DEEP, NF1),
+/* EMMC_DATA7 */	PAD_CFG_NF(GPP_F20, NONE, DEEP, NF1),
+/* EMMC_RCLK */		PAD_CFG_NF(GPP_F21, NONE, DEEP, NF1),
+/* EMMC_CLK */		PAD_CFG_NF(GPP_F22, NONE, DEEP, NF1),
+			/* GPP_F23 */
+/* SD_CMD */		PAD_CFG_NF(GPP_G0, NONE, DEEP, NF1),
+/* SD_DATA0 */		PAD_CFG_NF(GPP_G1, NONE, DEEP, NF1),
+/* SD_DATA1 */		PAD_CFG_NF(GPP_G2, NONE, DEEP, NF1),
+/* SD_DATA2 */		PAD_CFG_NF(GPP_G3, NONE, DEEP, NF1),
+/* SD_DATA3 */		PAD_CFG_NF(GPP_G4, NONE, DEEP, NF1),
+/* SD_CD# */		PAD_CFG_NF(GPP_G5, NONE, DEEP, NF1),
+/* SD_CLK */		PAD_CFG_NF(GPP_G6, NONE, DEEP, NF1),
+/* SD_WP */		PAD_CFG_NF(GPP_G7, NONE, DEEP, NF1),
+/* PCH_BATLOW */	PAD_CFG_NF(GPD0, NONE, DEEP, NF1),
+/* EC_PCH_ACPRESENT */	PAD_CFG_NF(GPD1, NONE, DEEP, NF1),
+/* EC_PCH_WAKE */	PAD_CFG_NF(GPD2, NONE, DEEP, NF1),
+/* EC_PCH_PWRBTN */	PAD_CFG_NF(GPD3, NONE, DEEP, NF1),
+/* PM_SLP_S3# */	PAD_CFG_NF(GPD4, NONE, DEEP, NF1),
+/* PM_SLP_S4# */	PAD_CFG_NF(GPD5, NONE, DEEP, NF1),
+/* PM_SLP_SA# */	PAD_CFG_NF(GPD6, NONE, DEEP, NF1),
+			/* GPD7 */
+/* PM_SUSCLK */		PAD_CFG_NF(GPD8, NONE, DEEP, NF1),
+/* PCH_SLP_WLAN# */	/* GPD9 */
+/* PM_SLP_S5# */	PAD_CFG_NF(GPD10, NONE, DEEP, NF1),
+/* LANPHYC */		/* GPD11 */
+};
+
+/* Early pad configuration in romstage. */
+static const struct pad_config early_gpio_table[] = {
+/* SRCCLKREQ2# */	PAD_CFG_NF(GPP_B7, NONE, DEEP, NF1), /* KEPLER */
+/* UART0_CTS# */	PAD_CFG_GPO(GPP_C11, 1, DEEP), /* EN_PP3300_KEPLER */
+};
+
+#endif
+
+#endif
diff --git a/src/mainboard/google/lars/mainboard.c b/src/mainboard/google/lars/mainboard.c
new file mode 100644
index 0000000000..40becdc5fb
--- /dev/null
+++ b/src/mainboard/google/lars/mainboard.c
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <device/device.h>
+#include <stdlib.h>
+#include "ec.h"
+
+static void mainboard_init(device_t dev)
+{
+	mainboard_ec_init();
+}
+
+/*
+ * mainboard_enable is executed as first thing after
+ * enumerate_buses().
+ */
+static void mainboard_enable(device_t dev)
+{
+	dev->ops->init = mainboard_init;
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};
diff --git a/src/mainboard/google/lars/pei_data.c b/src/mainboard/google/lars/pei_data.c
new file mode 100644
index 0000000000..4bfc2f3bea
--- /dev/null
+++ b/src/mainboard/google/lars/pei_data.c
@@ -0,0 +1,63 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <soc/pei_data.h>
+#include <soc/pei_wrapper.h>
+#include "boardid.h"
+
+/* PCH_MEM_CFG[3:0] */
+#define MAX_MEMORY_CONFIG	0x10
+#define RCOMP_TARGET_PARAMS	0x5
+
+void mainboard_fill_pei_data(struct pei_data *pei_data)
+{
+	/* DQ byte map */
+	const u8 dq_map[2][12] = {
+		  { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0 ,
+		    0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 },
+		  { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0 ,
+		    0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 } };
+	/* DQS CPU<>DRAM map */
+	const u8 dqs_map[2][8] = {
+		{ 0, 1, 3, 2, 6, 5, 4, 7 },
+		{ 2, 3, 0, 1, 6, 7, 4, 5 } };
+
+	/* Rcomp resistor */
+	const u16 RcompResistor[3] = { 200, 81, 162 };
+
+	/* Rcomp target */
+	static const u16 RcompTarget[MAX_MEMORY_CONFIG][RCOMP_TARGET_PARAMS] = {
+		{ 100, 40, 40, 23, 40 },
+		{ 100, 40, 40, 23, 40 },
+		{ 100, 40, 40, 23, 40 },
+		/*Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF*/
+		{ 100, 40, 40, 21, 40 }, };
+
+
+	memcpy(pei_data->dq_map, dq_map, sizeof(dq_map));
+	memcpy(pei_data->dqs_map, dqs_map, sizeof(dqs_map));
+	memcpy(pei_data->RcompResistor, RcompResistor,
+		 sizeof(RcompResistor));
+	memcpy(pei_data->RcompTarget, &RcompTarget[pei_data->mem_cfg_id][0],
+		 sizeof(RcompTarget[pei_data->mem_cfg_id]));
+
+}
diff --git a/src/mainboard/google/lars/ramstage.c b/src/mainboard/google/lars/ramstage.c
new file mode 100644
index 0000000000..2deaaa303a
--- /dev/null
+++ b/src/mainboard/google/lars/ramstage.c
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Intel Corporation
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <soc/ramstage.h>
+#include "gpio.h"
+
+void mainboard_silicon_init_params(SILICON_INIT_UPD *params)
+{
+	/* Configure pads prior to SiliconInit() in case there's any
+	 * dependencies during hardware initialization. */
+	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
+}
diff --git a/src/mainboard/google/lars/romstage.c b/src/mainboard/google/lars/romstage.c
new file mode 100644
index 0000000000..cd855d681d
--- /dev/null
+++ b/src/mainboard/google/lars/romstage.c
@@ -0,0 +1,88 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2010 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <cbfs.h>
+#include <console/console.h>
+#include <string.h>
+#include <ec/google/chromeec/ec.h>
+#include <gpio.h>
+#include <soc/pei_data.h>
+#include <soc/pei_wrapper.h>
+#include <soc/romstage.h>
+#include "gpio.h"
+#include "spd/spd.h"
+
+static void early_config_gpio(void)
+{
+	/* This is a hack for FSP because it does things in MemoryInit()
+	 * which it shouldn't be. We have to prepare certain gpios here
+	 * because of the brokenness in FSP. */
+	gpio_configure_pads(early_gpio_table, ARRAY_SIZE(early_gpio_table));
+}
+
+void mainboard_romstage_entry(struct romstage_params *params)
+{
+	/* PCH_MEM_CFG[3:0] */
+	gpio_t spd_gpios[] = {
+		GPIO_MEM_CONFIG_0,
+		GPIO_MEM_CONFIG_1,
+		GPIO_MEM_CONFIG_2,
+		GPIO_MEM_CONFIG_3,
+	};
+
+	/* Ensure the EC and PD are in the right mode for recovery */
+	google_chromeec_early_init();
+
+	early_config_gpio();
+
+	params->pei_data->mem_cfg_id = gpio_base2_value(spd_gpios,
+							ARRAY_SIZE(spd_gpios));
+	/* Fill out PEI DATA */
+	mainboard_fill_pei_data(params->pei_data);
+	mainboard_fill_spd_data(params->pei_data);
+	/* Initliaze memory */
+	romstage_common(params);
+}
+
+void mainboard_memory_init_params(struct romstage_params *params,
+				  MEMORY_INIT_UPD *memory_params)
+{
+	if (params->pei_data->spd_data[0][0][0] != 0) {
+		memory_params->MemorySpdPtr00 =
+				(UINT32)(params->pei_data->spd_data[0][0]);
+		memory_params->MemorySpdPtr10 =
+				(UINT32)(params->pei_data->spd_data[1][0]);
+	}
+	memcpy(memory_params->DqByteMapCh0, params->pei_data->dq_map[0],
+			sizeof(params->pei_data->dq_map[0]));
+	memcpy(memory_params->DqByteMapCh1, params->pei_data->dq_map[1],
+			sizeof(params->pei_data->dq_map[1]));
+	memcpy(memory_params->DqsMapCpu2DramCh0, params->pei_data->dqs_map[0],
+			sizeof(params->pei_data->dqs_map[0]));
+	memcpy(memory_params->DqsMapCpu2DramCh1, params->pei_data->dqs_map[1],
+			sizeof(params->pei_data->dqs_map[1]));
+	memcpy(memory_params->RcompResistor, params->pei_data->RcompResistor,
+			sizeof(params->pei_data->RcompResistor));
+	memcpy(memory_params->RcompTarget, params->pei_data->RcompTarget,
+			sizeof(params->pei_data->RcompTarget));
+	memory_params->MemorySpdDataLen = SPD_LEN;
+	memory_params->DqPinsInterleaved = FALSE;
+}
diff --git a/src/mainboard/google/lars/smihandler.c b/src/mainboard/google/lars/smihandler.c
new file mode 100644
index 0000000000..c2f9d8163a
--- /dev/null
+++ b/src/mainboard/google/lars/smihandler.c
@@ -0,0 +1,132 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2015 Intel Corp.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <cpu/x86/smm.h>
+#include <elog.h>
+#include <ec/google/chromeec/ec.h>
+#include <soc/iomap.h>
+#include <soc/nvs.h>
+#include <soc/pm.h>
+#include <soc/smm.h>
+#include "ec.h"
+#include "gpio.h"
+
+int mainboard_io_trap_handler(int smif)
+{
+	switch (smif) {
+	case 0x99:
+		printk(BIOS_DEBUG, "Sample\n");
+		smm_get_gnvs()->smif = 0;
+		break;
+	default:
+		return 0;
+	}
+
+	/* On success, the IO Trap Handler returns 0
+	 * On failure, the IO Trap Handler returns a value != 0
+	 *
+	 * For now, we force the return value to 0 and log all traps to
+	 * see what's going on.
+	 */
+	return 1;
+}
+
+static u8 mainboard_smi_ec(void)
+{
+	u8 cmd = 0;
+#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)
+	u32 pm1_cnt;
+	cmd = google_chromeec_get_event();
+
+	/* Log this event */
+	if (IS_ENABLED(CONFIG_ELOG_GSMI) && cmd)
+		elog_add_event_byte(ELOG_TYPE_EC_EVENT, cmd);
+
+	switch (cmd) {
+	case EC_HOST_EVENT_LID_CLOSED:
+		printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
+
+		/* Go to S5 */
+		pm1_cnt = inl(ACPI_BASE_ADDRESS + PM1_CNT);
+		pm1_cnt |= (0xf << 10);
+		outl(pm1_cnt, ACPI_BASE_ADDRESS + PM1_CNT);
+		break;
+	}
+#endif
+	return cmd;
+}
+
+void mainboard_smi_gpi_handler(const struct gpi_status *sts)
+{
+	if (gpi_status_get(sts, EC_SMI_GPI)) {
+		/* Process all pending events */
+		while (mainboard_smi_ec() != 0)
+			;
+	}
+}
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)
+	switch (slp_typ) {
+	case 3:
+		/* Enable wake events */
+		google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS);
+		break;
+	case 5:
+		/* Enable wake events */
+		google_chromeec_set_wake_mask(MAINBOARD_EC_S5_WAKE_EVENTS);
+		break;
+	}
+
+	/* Disable SCI and SMI events */
+	google_chromeec_set_smi_mask(0);
+	google_chromeec_set_sci_mask(0);
+
+	/* Clear pending events that may trigger immediate wake */
+	while (google_chromeec_get_event() != 0)
+		;
+#endif
+}
+
+int mainboard_smi_apmc(u8 apmc)
+{
+#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)
+	switch (apmc) {
+	case APM_CNT_ACPI_ENABLE:
+		google_chromeec_set_smi_mask(0);
+		/* Clear all pending events */
+		while (google_chromeec_get_event() != 0)
+			;
+		google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
+		break;
+	case APM_CNT_ACPI_DISABLE:
+		google_chromeec_set_sci_mask(0);
+		/* Clear all pending events */
+		while (google_chromeec_get_event() != 0)
+			;
+		google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS);
+		break;
+	}
+#endif
+	return 0;
+}
diff --git a/src/mainboard/google/lars/spd/Makefile.inc b/src/mainboard/google/lars/spd/Makefile.inc
new file mode 100644
index 0000000000..a344f0bdae
--- /dev/null
+++ b/src/mainboard/google/lars/spd/Makefile.inc
@@ -0,0 +1,55 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google Inc.
+## Copyright (C) 2015 Intel Corporation.
+##
+## 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.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc.
+##
+
+romstage-y += spd.c
+
+SPD_BIN = $(obj)/spd.bin
+
+SPD_SOURCES  = hynix_dimm_H9CCNNN8JTALAR-NUD-1G-1866    # 0b0000
+SPD_SOURCES += hynix_dimm_H9CCNNNBLTALAR-NUD-2G-1866    # 0b0001
+SPD_SOURCES += samsung_dimm_K4E8E304EE-EGCF-1G-1866     # 0b0010
+SPD_SOURCES += samsung_dimm_K4E6E304EE-EGCF-2G-1866     # 0b0011
+SPD_SOURCES += empty                                    # 0b0100
+SPD_SOURCES += empty                                    # 0b0101
+SPD_SOURCES += empty                                    # 0b0110
+SPD_SOURCES += empty                                    # 0b0111
+SPD_SOURCES += empty                                    # 0b1000
+SPD_SOURCES += empty                                    # 0b1001
+SPD_SOURCES += empty                                    # 0b1010
+SPD_SOURCES += empty                                    # 0b1011
+SPD_SOURCES += empty                                    # 0b1100
+SPD_SOURCES += empty                                    # 0b1101
+SPD_SOURCES += empty                                    # 0b1110
+SPD_SOURCES += empty                                    # 0b1111
+
+
+SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex)
+
+# Include spd rom data
+$(SPD_BIN): $(SPD_DEPS)
+	for f in $+; \
+	  do for c in $$(cat $$f | grep -v ^#); \
+	    do printf $$(printf '\%o' 0x$$c); \
+	  done; \
+	done > $@
+
+cbfs-files-y += spd.bin
+spd.bin-file := $(SPD_BIN)
+spd.bin-type := spd
diff --git a/src/mainboard/google/lars/spd/empty.spd.hex b/src/mainboard/google/lars/spd/empty.spd.hex
new file mode 100644
index 0000000000..9ec39f1ba4
--- /dev/null
+++ b/src/mainboard/google/lars/spd/empty.spd.hex
@@ -0,0 +1,16 @@
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNN8JTALAR-NUD-1G-1866.spd.hex b/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNN8JTALAR-NUD-1G-1866.spd.hex
new file mode 100644
index 0000000000..cce75a81ac
--- /dev/null
+++ b/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNN8JTALAR-NUD-1G-1866.spd.hex
@@ -0,0 +1,16 @@
+91 20 F1 03 04 11 05 0B 03 11 01 08 09 00 40 05
+78 78 90 50 90 11 50 E0 90 06 3C 3C 01 90 00 00
+00 00 CA FA 00 00 00 A8 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 AD 01 00 00 00 00 00 00 00 00
+48 39 43 43 4E 4E 4E 38 4A 54 41 4C 41 52 2D 4E
+55 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNNBLTALAR-NUD-2G-1866.spd.hex b/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNNBLTALAR-NUD-2G-1866.spd.hex
new file mode 100644
index 0000000000..84888160a8
--- /dev/null
+++ b/src/mainboard/google/lars/spd/hynix_dimm_H9CCNNNBLTALAR-NUD-2G-1866.spd.hex
@@ -0,0 +1,16 @@
+91 20 F1 03 04 12 05 0A 03 11 01 08 09 00 40 05
+78 78 90 50 90 11 50 E0 90 06 3C 3C 01 90 00 00
+00 00 CA FA 00 00 00 A8 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 AD 01 00 00 00 00 00 00 00 00
+48 39 43 43 4E 4E 4E 42 4C 54 41 4C 41 52 2D 4E
+55 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/samsung_dimm_K4E6E304EE-EGCF-2G-1866.spd.hex b/src/mainboard/google/lars/spd/samsung_dimm_K4E6E304EE-EGCF-2G-1866.spd.hex
new file mode 100644
index 0000000000..2718e2aa1b
--- /dev/null
+++ b/src/mainboard/google/lars/spd/samsung_dimm_K4E6E304EE-EGCF-2G-1866.spd.hex
@@ -0,0 +1,16 @@
+91 20 F1 03 04 12 05 0A 03 11 01 08 09 00 40 05
+78 78 90 50 90 11 50 E0 10 04 3C 3C 01 90 00 00
+00 00 CA FA 00 00 00 A8 00 88 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 CE 01 00 00 55 00 00 00 00 00
+4B 34 45 36 45 33 30 34 45 45 2D 45 47 43 46 20
+20 20 00 00 80 CE 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCE.spd.hex b/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCE.spd.hex
new file mode 100644
index 0000000000..52910465c9
--- /dev/null
+++ b/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCE.spd.hex
@@ -0,0 +1,16 @@
+91 20 F1 03 04 11 05 0B 03 11 01 08 0A 00 50 01
+78 78 90 50 90 11 50 E0 10 04 3C 3C 01 90 00 00
+00 00 00 00 00 00 00 A8 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 55 00 00 00 00 00
+20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
+20 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCF-1G-1866.spd.hex b/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCF-1G-1866.spd.hex
new file mode 100644
index 0000000000..24167ebd0a
--- /dev/null
+++ b/src/mainboard/google/lars/spd/samsung_dimm_K4E8E304EE-EGCF-1G-1866.spd.hex
@@ -0,0 +1,16 @@
+91 20 F1 03 04 11 05 0B 03 11 01 08 09 00 40 05
+78 78 90 50 90 11 50 E0 10 04 3C 3C 01 90 00 00
+00 00 CA FA 00 00 00 A8 00 88 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 CE 01 00 00 55 00 00 00 00 00
+4B 34 45 38 45 33 30 34 45 45 2D 45 47 43 46 20
+20 20 00 00 80 CE 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/google/lars/spd/spd.c b/src/mainboard/google/lars/spd/spd.c
new file mode 100644
index 0000000000..0deac2fe8c
--- /dev/null
+++ b/src/mainboard/google/lars/spd/spd.c
@@ -0,0 +1,133 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <arch/byteorder.h>
+#include <boardid.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <soc/pei_data.h>
+#include <soc/romstage.h>
+#include <string.h>
+
+#include "../boardid.h"
+#include "spd.h"
+
+static void mainboard_print_spd_info(uint8_t spd[])
+{
+	const int spd_banks[8] = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	const int spd_capmb[8] = {  1,  2,  4,  8, 16, 32, 64,  0 };
+	const int spd_rows[8]  = { 12, 13, 14, 15, 16, -1, -1, -1 };
+	const int spd_cols[8]  = {  9, 10, 11, 12, -1, -1, -1, -1 };
+	const int spd_ranks[8] = {  1,  2,  3,  4, -1, -1, -1, -1 };
+	const int spd_devw[8]  = {  4,  8, 16, 32, -1, -1, -1, -1 };
+	const int spd_busw[8]  = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	char spd_name[SPD_PART_LEN+1] = { 0 };
+
+	int banks = spd_banks[(spd[SPD_DENSITY_BANKS] >> 4) & 7];
+	int capmb = spd_capmb[spd[SPD_DENSITY_BANKS] & 7] * 256;
+	int rows  = spd_rows[(spd[SPD_ADDRESSING] >> 3) & 7];
+	int cols  = spd_cols[spd[SPD_ADDRESSING] & 7];
+	int ranks = spd_ranks[(spd[SPD_ORGANIZATION] >> 3) & 7];
+	int devw  = spd_devw[spd[SPD_ORGANIZATION] & 7];
+	int busw  = spd_busw[spd[SPD_BUS_DEV_WIDTH] & 7];
+
+	/* Module type */
+	printk(BIOS_INFO, "SPD: module type is ");
+	switch (spd[SPD_DRAM_TYPE]) {
+	case SPD_DRAM_DDR3:
+		printk(BIOS_INFO, "DDR3\n");
+		break;
+	case SPD_DRAM_LPDDR3:
+		printk(BIOS_INFO, "LPDDR3\n");
+		break;
+	default:
+		printk(BIOS_INFO, "Unknown (%02x)\n", spd[SPD_DRAM_TYPE]);
+		break;
+	}
+
+	/* Module Part Number */
+	memcpy(spd_name, &spd[SPD_PART_OFF], SPD_PART_LEN);
+	spd_name[SPD_PART_LEN] = 0;
+	printk(BIOS_INFO, "SPD: module part is %s\n", spd_name);
+
+	printk(BIOS_INFO,
+		"SPD: banks %d, ranks %d, rows %d, columns %d, density %d Mb\n",
+		banks, ranks, rows, cols, capmb);
+	printk(BIOS_INFO, "SPD: device width %d bits, bus width %d bits\n",
+		devw, busw);
+
+	if (capmb > 0 && busw > 0 && devw > 0 && ranks > 0) {
+		/* SIZE = DENSITY / 8 * BUS_WIDTH / SDRAM_WIDTH * RANKS */
+		printk(BIOS_INFO, "SPD: module size is %u MB (per channel)\n",
+		       capmb / 8 * busw / devw * ranks);
+	}
+}
+
+/* Copy SPD data for on-board memory */
+void mainboard_fill_spd_data(struct pei_data *pei_data)
+{
+	char *spd_file;
+	size_t spd_file_len;
+	int spd_index, sku_id;
+
+
+	spd_index = pei_data->mem_cfg_id;
+	/*
+	 * XXX: This is incorrect usage.The Board ID should be the revision ID
+	 *      and not SKU ID but on SCRD it indicates SKU.
+	 */
+	sku_id = board_id();
+	printk(BIOS_INFO, "SPD index %d\n", spd_index);
+	printk(BIOS_INFO, "Board ID %d\n", sku_id);
+
+	/* Load SPD data from CBFS */
+	spd_file = cbfs_boot_map_with_leak("spd.bin", CBFS_TYPE_SPD,
+		&spd_file_len);
+	if (!spd_file)
+		die("SPD data not found.");
+
+	/* make sure we have at least one SPD in the file. */
+	if (spd_file_len < SPD_LEN)
+		die("Missing SPD data.");
+
+	/* Make sure we did not overrun the buffer */
+	if (spd_file_len < ((spd_index + 1) * SPD_LEN)) {
+		printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n");
+		spd_index = 0;
+	}
+
+	/* Assume same memory in both channels */
+	spd_index *= SPD_LEN;
+	memcpy(pei_data->spd_data[0][0], spd_file + spd_index, SPD_LEN);
+	/*
+	 * XXX: This is incorrect usage. mem_cfg should be used here instead of
+	 *	SKU ID. The current implementation of mem_config does not
+	 *	support channel population.
+	 */
+
+	if (sku_id != SCRD_SKU1)
+		memcpy(pei_data->spd_data[1][0], spd_file + spd_index, SPD_LEN);
+
+	/* Make sure a valid SPD was found */
+	if (pei_data->spd_data[0][0][0] == 0)
+		die("Invalid SPD data.");
+
+	mainboard_print_spd_info(pei_data->spd_data[0][0]);
+}
diff --git a/src/mainboard/google/lars/spd/spd.h b/src/mainboard/google/lars/spd/spd.h
new file mode 100644
index 0000000000..eaa873b55a
--- /dev/null
+++ b/src/mainboard/google/lars/spd/spd.h
@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef MAINBOARD_SPD_H
+#define MAINBOARD_SPD_H
+
+#define SPD_LEN			256
+
+#define SPD_DRAM_TYPE		2
+#define  SPD_DRAM_DDR3		0x0b
+#define  SPD_DRAM_LPDDR3	0xf1
+#define SPD_DENSITY_BANKS	4
+#define SPD_ADDRESSING		5
+#define SPD_ORGANIZATION	7
+#define SPD_BUS_DEV_WIDTH	8
+#define SPD_PART_OFF		128
+#define  SPD_PART_LEN		18
+#define SPD_MANU_OFF		148
+
+#endif