diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig
new file mode 100644
index 0000000..7e27cfd
--- /dev/null
+++ b/src/northbridge/intel/haswell/Kconfig
@@ -0,0 +1,95 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2010 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+config NORTHBRIDGE_INTEL_HASWELL
+	bool
+	select CACHE_MRC_BIN
+	select CPU_INTEL_HASWELL
+	select REQUIRES_BLOB
+
+if NORTHBRIDGE_INTEL_HASWELL
+
+config VGA_BIOS_ID
+	string
+	default "8086,0166"
+
+config EXTERNAL_MRC_BLOB
+       bool
+       default n
+
+config CACHE_MRC_SIZE_KB
+	int
+	default 512
+
+# FIXME: build from rom size
+config MRC_CACHE_BASE
+	hex
+	default 0xff800000
+
+config MRC_CACHE_LOCATION
+	hex
+	depends on !CHROMEOS
+	default 0x370000
+
+config MRC_CACHE_SIZE
+	hex
+	depends on !CHROMEOS
+	default 0x10000
+
+config DCACHE_RAM_BASE
+	hex
+	default 0xff7e0000
+
+config DCACHE_RAM_SIZE
+	hex
+	default 0x20000
+
+config DCACHE_RAM_MRC_VAR_SIZE
+	hex
+	default 0x4000
+
+config HAVE_MRC
+	bool "Add a System Agent binary"
+	help
+	  Select this option to add a System Agent binary to
+	  the resulting coreboot image.
+
+	  Note: Without this binary coreboot will not work
+
+config MRC_FILE
+	string "Intel System Agent path and filename"
+	depends on HAVE_MRC
+	default "mrc.bin"
+	help
+	  The path and filename of the file to use as System Agent
+	  binary.
+
+config CBFS_SIZE
+	hex "Size of CBFS filesystem in ROM"
+	default 0x100000
+	help
+	  On Haswell systems the firmware image has to store a lot more
+	  than just coreboot, including:
+	   - a firmware descriptor
+	   - Intel Management Engine firmware
+	   - MRC cache information
+	  This option allows to limit the size of the CBFS portion in the
+	  firmware image.
+
+endif
diff --git a/src/northbridge/intel/haswell/Makefile.inc b/src/northbridge/intel/haswell/Makefile.inc
new file mode 100644
index 0000000..896360d
--- /dev/null
+++ b/src/northbridge/intel/haswell/Makefile.inc
@@ -0,0 +1,41 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2010 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+
+ramstage-y += northbridge.c
+ramstage-y += gma.c
+
+ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c
+ramstage-y += mrccache.c
+
+romstage-y += raminit.c
+romstage-y += mrccache.c
+romstage-y += early_init.c
+romstage-y += report_platform.c
+romstage-y += ../../../arch/x86/lib/walkcbfs.S
+
+smm-$(CONFIG_HAVE_SMI_HANDLER) += udelay.c
+smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c
+
+# We don't ship that, but booting without it is bound to fail
+cbfs-files-$(CONFIG_HAVE_MRC) += mrc.bin
+mrc.bin-file := $(call strip_quotes,$(CONFIG_MRC_FILE))
+mrc.bin-position := 0xfffa0000
+mrc.bin-type := 0xab
+
+$(obj)/northbridge/intel/haswell/acpi.ramstage.o : $(obj)/build.h
diff --git a/src/northbridge/intel/haswell/acpi.c b/src/northbridge/intel/haswell/acpi.c
new file mode 100644
index 0000000..c616699
--- /dev/null
+++ b/src/northbridge/intel/haswell/acpi.c
@@ -0,0 +1,202 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2012 The Chromium OS Authors
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <types.h>
+#include <string.h>
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/acpi.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <build.h>
+#include "haswell.h"
+
+unsigned long acpi_fill_mcfg(unsigned long current)
+{
+	device_t dev;
+	u32 pciexbar = 0;
+	u32 pciexbar_reg;
+	int max_buses;
+
+	dev = dev_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_SB, 0);
+	if (!dev)
+		dev = dev_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_IB, 0);
+	if (!dev)
+		return current;
+
+	pciexbar_reg=pci_read_config32(dev, PCIEXBAR);
+
+	// MMCFG not supported or not enabled.
+	if (!(pciexbar_reg & (1 << 0)))
+		return current;
+
+	switch ((pciexbar_reg >> 1) & 3) {
+	case 0: // 256MB
+		pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+		max_buses = 256;
+		break;
+	case 1: // 128M
+		pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+		max_buses = 128;
+		break;
+	case 2: // 64M
+		pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+		max_buses = 64;
+		break;
+	default: // RSVD
+		return current;
+	}
+
+	if (!pciexbar)
+		return current;
+
+	current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
+			pciexbar, 0x0, 0x0, max_buses - 1);
+
+	return current;
+}
+
+static void *get_intel_vbios(void)
+{
+	/* This should probably be looking at CBFS or we should always
+	 * deploy the VBIOS on Intel systems, even if we don't run it
+	 * in coreboot (e.g. SeaBIOS only scenarios).
+	 */
+	u8 *vbios = (u8 *)0xc0000;
+
+	optionrom_header_t *oprom = (optionrom_header_t *)vbios;
+	optionrom_pcir_t *pcir = (optionrom_pcir_t *)(vbios +
+						oprom->pcir_offset);
+
+
+	printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x %x\n",
+		oprom->signature, pcir->vendor, pcir->classcode[0],
+		pcir->classcode[1], pcir->classcode[2]);
+
+
+	if ((oprom->signature == OPROM_SIGNATURE) &&
+		(pcir->vendor == PCI_VENDOR_ID_INTEL) &&
+		(pcir->classcode[0] == 0x00) &&
+		(pcir->classcode[1] == 0x00) &&
+		(pcir->classcode[2] == 0x03))
+		return (void *)vbios;
+
+	return NULL;
+}
+
+static int init_opregion_vbt(igd_opregion_t *opregion)
+{
+	void *vbios;
+	vbios = get_intel_vbios();
+	if (!vbios) {
+		printk(BIOS_DEBUG, "VBIOS not found.\n");
+		return 1;
+	}
+
+	printk(BIOS_DEBUG, " ... VBIOS found at %p\n", vbios);
+	optionrom_header_t *oprom = (optionrom_header_t *)vbios;
+	optionrom_vbt_t *vbt = (optionrom_vbt_t *)(vbios +
+						oprom->vbt_offset);
+
+	if (read32((unsigned long)vbt->hdr_signature) != VBT_SIGNATURE) {
+		printk(BIOS_DEBUG, "VBT not found!\n");
+		return 1;
+	}
+
+	memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild, 4);
+	memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size < 7168 ?
+						vbt->hdr_vbt_size : 7168);
+
+	return 0;
+}
+
+
+/* Initialize IGD OpRegion, called from ACPI code */
+int init_igd_opregion(igd_opregion_t *opregion)
+{
+	device_t igd;
+	u16 reg16;
+
+	memset((void *)opregion, 0, sizeof(igd_opregion_t));
+
+	// FIXME if IGD is disabled, we should exit here.
+
+	memcpy(&opregion->header.signature, IGD_OPREGION_SIGNATURE,
+		sizeof(IGD_OPREGION_SIGNATURE));
+
+	/* 8kb */
+	opregion->header.size = sizeof(igd_opregion_t) / 1024;
+	opregion->header.version = IGD_OPREGION_VERSION;
+
+	// FIXME We just assume we're mobile for now
+	opregion->header.mailboxes = MAILBOXES_MOBILE;
+
+	// TODO Initialize Mailbox 1
+
+	// TODO Initialize Mailbox 3
+	opregion->mailbox3.bclp = IGD_BACKLIGHT_BRIGHTNESS;
+	opregion->mailbox3.pfit = IGD_FIELD_VALID | IGD_PFIT_STRETCH;
+	opregion->mailbox3.pcft = 0; // should be (IMON << 1) & 0x3e
+	opregion->mailbox3.cblv = IGD_FIELD_VALID | IGD_INITIAL_BRIGHTNESS;
+	opregion->mailbox3.bclm[0] = IGD_WORD_FIELD_VALID + 0x0000;
+	opregion->mailbox3.bclm[1] = IGD_WORD_FIELD_VALID + 0x0a19;
+	opregion->mailbox3.bclm[2] = IGD_WORD_FIELD_VALID + 0x1433;
+	opregion->mailbox3.bclm[3] = IGD_WORD_FIELD_VALID + 0x1e4c;
+	opregion->mailbox3.bclm[4] = IGD_WORD_FIELD_VALID + 0x2866;
+	opregion->mailbox3.bclm[5] = IGD_WORD_FIELD_VALID + 0x327f;
+	opregion->mailbox3.bclm[6] = IGD_WORD_FIELD_VALID + 0x3c99;
+	opregion->mailbox3.bclm[7] = IGD_WORD_FIELD_VALID + 0x46b2;
+	opregion->mailbox3.bclm[8] = IGD_WORD_FIELD_VALID + 0x50cc;
+	opregion->mailbox3.bclm[9] = IGD_WORD_FIELD_VALID + 0x5ae5;
+	opregion->mailbox3.bclm[10] = IGD_WORD_FIELD_VALID + 0x64ff;
+
+	init_opregion_vbt(opregion);
+
+	/* TODO This needs to happen in S3 resume, too.
+	 * Maybe it should move to the finalize handler
+	 */
+	igd = dev_find_slot(0, PCI_DEVFN(0x2, 0));
+
+	pci_write_config32(igd, ASLS, (u32)opregion);
+	reg16 = pci_read_config16(igd, SWSCI);
+	reg16 &= ~(1 << 0);
+	reg16 |= (1 << 15);
+	pci_write_config16(igd, SWSCI, reg16);
+
+	/* clear dmisci status */
+	reg16 = inw(DEFAULT_PMBASE + TCO1_STS);
+	reg16 |= DMISCI_STS; // reference code does an &=
+	outw(DEFAULT_PMBASE + TCO1_STS, reg16);
+
+	/* clear acpi tco status */
+	outl(DEFAULT_PMBASE + GPE0_STS, TCOSCI_STS);
+
+	/* enable acpi tco scis */
+	reg16 = inw(DEFAULT_PMBASE + GPE0_EN);
+	reg16 |= TCOSCI_EN;
+	outw(DEFAULT_PMBASE + GPE0_EN, reg16);
+
+	return 0;
+}
+
+
diff --git a/src/northbridge/intel/haswell/acpi/haswell.asl b/src/northbridge/intel/haswell/acpi/haswell.asl
new file mode 100644
index 0000000..49d55e7
--- /dev/null
+++ b/src/northbridge/intel/haswell/acpi/haswell.asl
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include "../haswell.h"
+#include "hostbridge.asl"
+
+/* PCI Device Resource Consumption */
+Device (PDRC)
+{
+	Name (_HID, EISAID("PNP0C02"))
+	Name (_UID, 1)
+
+	Name (PDRS, ResourceTemplate() {
+		Memory32Fixed(ReadWrite, 0xfed1c000, 0x00004000) // RCBA
+		Memory32Fixed(ReadWrite, DEFAULT_MCHBAR,   0x00004000)
+		Memory32Fixed(ReadWrite, DEFAULT_DMIBAR,   0x00001000)
+		Memory32Fixed(ReadWrite, DEFAULT_EPBAR,    0x00001000)
+		Memory32Fixed(ReadWrite, DEFAULT_PCIEXBAR, 0x04000000)
+		Memory32Fixed(ReadWrite, 0xfed20000, 0x00020000) // Misc ICH
+		Memory32Fixed(ReadWrite, 0xfed40000, 0x00005000) // Misc ICH
+		Memory32Fixed(ReadWrite, 0xfed45000, 0x0004b000) // Misc ICH
+
+#if CONFIG_CHROMEOS_RAMOOPS
+		Memory32Fixed(ReadWrite, CONFIG_CHROMEOS_RAMOOPS_RAM_START,
+					 CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE)
+#endif
+
+		/* Required for SandyBridge sighting 3715511 */
+		/* FIXME: Is this still required? */
+		Memory32Fixed(ReadWrite, 0x20000000, 0x00200000)
+		Memory32Fixed(ReadWrite, 0x40000000, 0x00200000)
+	})
+
+	// Current Resource Settings
+	Method (_CRS, 0, Serialized)
+	{
+		Return(PDRS)
+	}
+}
+
+// Integrated graphics 0:2.0
+#include "igd.asl"
diff --git a/src/northbridge/intel/haswell/acpi/hostbridge.asl b/src/northbridge/intel/haswell/acpi/hostbridge.asl
new file mode 100644
index 0000000..681f6dc
--- /dev/null
+++ b/src/northbridge/intel/haswell/acpi/hostbridge.asl
@@ -0,0 +1,385 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+
+Name(_HID,EISAID("PNP0A08"))	// PCIe
+Name(_CID,EISAID("PNP0A03"))	// PCI
+
+Name(_ADR, 0)
+Name(_BBN, 0)
+
+Device (MCHC)
+{
+	Name(_ADR, 0x00000000)	// 0:0.0
+
+	OperationRegion(MCHP, PCI_Config, 0x00, 0x100)
+	Field (MCHP, DWordAcc, NoLock, Preserve)
+	{
+		Offset (0x40),	// EPBAR
+		EPEN,	 1,	// Enable
+		,	11,	//
+		EPBR,	24,	// EPBAR
+
+		Offset (0x48),	// MCHBAR
+		MHEN,	 1,	// Enable
+		,	13,	//
+		MHBR,	22,	// MCHBAR
+
+		Offset (0x60),	// PCIe BAR
+		PXEN,	 1,	// Enable
+		PXSZ,	 2,	// BAR size
+		,	23,	//
+		PXBR,	10,	// PCIe BAR
+
+		Offset (0x68),	// DMIBAR
+		DMEN,	 1,	// Enable
+		,	11,	//
+		DMBR,	24,	// DMIBAR
+
+		Offset (0x70),	// ME Base Address
+		MEBA,	 64,
+
+		// ...
+
+		Offset (0x80),	// PAM0
+		,	 4,
+		PM0H,	 2,
+		,	 2,
+		Offset (0x81),	// PAM1
+		PM1L,	 2,
+		,	 2,
+		PM1H,	 2,
+		,	 2,
+		Offset (0x82),	// PAM2
+		PM2L,	 2,
+		,	 2,
+		PM2H,	 2,
+		,	 2,
+		Offset (0x83),	// PAM3
+		PM3L,	 2,
+		,	 2,
+		PM3H,	 2,
+		,	 2,
+		Offset (0x84),	// PAM4
+		PM4L,	 2,
+		,	 2,
+		PM4H,	 2,
+		,	 2,
+		Offset (0x85),	// PAM5
+		PM5L,	 2,
+		,	 2,
+		PM5H,	 2,
+		,	 2,
+		Offset (0x86),	// PAM6
+		PM6L,	 2,
+		,	 2,
+		PM6H,	 2,
+		,	 2,
+
+		Offset (0xa0),	// Top of Used Memory
+		TOM,	 64,
+
+		Offset (0xbc),	// Top of Low Used Memory
+		TLUD,	 32,
+	}
+
+	Mutex (CTCM, 1)		/* CTDP Switch Mutex (sync level 1) */
+	Name (CTCC, 0)		/* CTDP Current Selection */
+	Name (CTCN, 0)		/* CTDP Nominal Select */
+	Name (CTCD, 1)		/* CTDP Down Select */
+	Name (CTCU, 2)		/* CTDP Up Select */
+
+	OperationRegion (MCHB, SystemMemory, DEFAULT_MCHBAR, 0x8000)
+	Field (MCHB, DWordAcc, Lock, Preserve)
+	{
+		Offset (0x5930),
+		CTDN, 15,	/* CTDP Nominal PL1 */
+		Offset (0x59a0),
+		PL1V, 15,	/* Power Limit 1 Value */
+		PL1E, 1,	/* Power Limit 1 Enable */
+		PL1C, 1,	/* Power Limit 1 Clamp */
+		PL1T, 7,	/* Power Limit 1 Time */
+		Offset (0x59a4),
+		PL2V, 15,	/* Power Limit 2 Value */
+		PL2E, 1,	/* Power Limit 2 Enable */
+		PL2C, 1,	/* Power Limit 2 Clamp */
+		PL2T, 7,	/* Power Limit 2 Time */
+		Offset (0x5f3c),
+		TARN, 8,	/* CTDP Nominal Turbo Activation Ratio */
+		Offset (0x5f40),
+		CTDD, 15,	/* CTDP Down PL1 */
+		, 1,
+		TARD, 8,	/* CTDP Down Turbo Activation Ratio */
+		Offset (0x5f48),
+		CTDU, 15,	/* CTDP Up PL1 */
+		, 1,
+		TARU, 8,	/* CTDP Up Turbo Activation Ratio */
+		Offset (0x5f50),
+		CTCS, 2,	/* CTDP Select */
+		Offset (0x5f54),
+		TARS, 8,	/* Turbo Activation Ratio Select */
+	}
+
+	/*
+	 * Search CPU0 _PSS looking for control=arg0 and then
+	 * return previous P-state entry number for new _PPC
+	 *
+	 * Format of _PSS:
+	 *   Name (_PSS, Package () {
+	 *     Package (6) { freq, power, tlat, blat, control, status }
+	 *   }
+	 */
+	External (\_PR.CPU0._PSS)
+	Method (PSSS, 1, NotSerialized)
+	{
+		Store (One, Local0) /* Start at P1 */
+		Store (SizeOf (\_PR.CPU0._PSS), Local1)
+
+		While (LLess (Local0, Local1)) {
+			/* Store _PSS entry Control value to Local2 */
+			ShiftRight (DeRefOf (Index (DeRefOf (Index
+			      (\_PR.CPU0._PSS, Local0)), 4)), 8, Local2)
+			If (LEqual (Local2, Arg0)) {
+				Return (Subtract (Local0, 1))
+			}
+			Increment (Local0)
+		}
+
+		Return (0)
+	}
+
+	/* Set TDP Down */
+	Method (STND, 0, Serialized)
+	{
+		If (Acquire (CTCM, 100)) {
+			Return (0)
+		}
+		If (LEqual (CTCD, CTCC)) {
+			Release (CTCM)
+			Return (0)
+		}
+
+		Store ("Set TDP Down", Debug)
+
+		/* Set CTC */
+		Store (CTCD, CTCS)
+
+		/* Set TAR */
+		Store (TARD, TARS)
+
+		/* Set PPC limit and notify OS */
+		Store (PSSS (TARD), PPCM)
+		PPCN ()
+
+		/* Set PL2 to 1.25 * PL1 */
+		Divide (Multiply (CTDD, 125), 100, Local0, PL2V)
+
+		/* Set PL1 */
+		Store (CTDD, PL1V)
+
+		/* Store the new TDP Down setting */
+		Store (CTCD, CTCC)
+
+		Release (CTCM)
+		Return (1)
+	}
+
+	/* Set TDP Nominal from Down */
+	Method (STDN, 0, Serialized)
+	{
+		If (Acquire (CTCM, 100)) {
+			Return (0)
+		}
+		If (LEqual (CTCN, CTCC)) {
+			Release (CTCM)
+			Return (0)
+		}
+
+		Store ("Set TDP Nominal", Debug)
+
+		/* Set PL1 */
+		Store (CTDN, PL1V)
+
+		/* Set PL2 to 1.25 * PL1 */
+		Divide (Multiply (CTDN, 125), 100, Local0, PL2V)
+
+		/* Set PPC limit and notify OS */
+		Store (PSSS (TARN), PPCM)
+		PPCN ()
+
+		/* Set TAR */
+		Store (TARN, TARS)
+
+		/* Set CTC */
+		Store (CTCN, CTCS)
+
+		/* Store the new TDP Nominal setting */
+		Store (CTCN, CTCC)
+
+		Release (CTCM)
+		Return (1)
+	}
+}
+
+// Current Resource Settings
+
+Method (_CRS, 0, Serialized)
+{
+	Name (MCRS, ResourceTemplate()
+	{
+		// Bus Numbers
+		WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
+				0x0000, 0x0000, 0x00ff, 0x0000, 0x0100,,, PB00)
+
+		// IO Region 0
+		DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+				0x0000, 0x0000, 0x0cf7, 0x0000, 0x0cf8,,, PI00)
+
+		// PCI Config Space
+		Io (Decode16, 0x0cf8, 0x0cf8, 0x0001, 0x0008)
+
+		// IO Region 1
+		DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+				0x0000, 0x0d00, 0xffff, 0x0000, 0xf300,,, PI01)
+
+		// VGA memory (0xa0000-0xbffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000a0000, 0x000bffff, 0x00000000,
+				0x00020000,,, ASEG)
+
+		// OPROM reserved (0xc0000-0xc3fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000c0000, 0x000c3fff, 0x00000000,
+				0x00004000,,, OPR0)
+
+		// OPROM reserved (0xc4000-0xc7fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000c4000, 0x000c7fff, 0x00000000,
+				0x00004000,,, OPR1)
+
+		// OPROM reserved (0xc8000-0xcbfff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000c8000, 0x000cbfff, 0x00000000,
+				0x00004000,,, OPR2)
+
+		// OPROM reserved (0xcc000-0xcffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000cc000, 0x000cffff, 0x00000000,
+				0x00004000,,, OPR3)
+
+		// OPROM reserved (0xd0000-0xd3fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000d0000, 0x000d3fff, 0x00000000,
+				0x00004000,,, OPR4)
+
+		// OPROM reserved (0xd4000-0xd7fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000d4000, 0x000d7fff, 0x00000000,
+				0x00004000,,, OPR5)
+
+		// OPROM reserved (0xd8000-0xdbfff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000d8000, 0x000dbfff, 0x00000000,
+				0x00004000,,, OPR6)
+
+		// OPROM reserved (0xdc000-0xdffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000dc000, 0x000dffff, 0x00000000,
+				0x00004000,,, OPR7)
+
+		// BIOS Extension (0xe0000-0xe3fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000e0000, 0x000e3fff, 0x00000000,
+				0x00004000,,, ESG0)
+
+		// BIOS Extension (0xe4000-0xe7fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000e4000, 0x000e7fff, 0x00000000,
+				0x00004000,,, ESG1)
+
+		// BIOS Extension (0xe8000-0xebfff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000e8000, 0x000ebfff, 0x00000000,
+				0x00004000,,, ESG2)
+
+		// BIOS Extension (0xec000-0xeffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000ec000, 0x000effff, 0x00000000,
+				0x00004000,,, ESG3)
+
+		// System BIOS (0xf0000-0xfffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x000f0000, 0x000fffff, 0x00000000,
+				0x00010000,,, FSEG)
+
+		// PCI Memory Region (Top of memory-0xfebfffff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0x00000000, 0xfebfffff, 0x00000000,
+				0xfec00000,,, PM01)
+
+		// TPM Area (0xfed40000-0xfed44fff)
+		DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
+				Cacheable, ReadWrite,
+				0x00000000, 0xfed40000, 0xfed44fff, 0x00000000,
+				0x00005000,,, TPMR)
+	})
+
+	// Find PCI resource area in MCRS
+	CreateDwordField(MCRS, PM01._MIN, PMIN)
+	CreateDwordField(MCRS, PM01._MAX, PMAX)
+	CreateDwordField(MCRS, PM01._LEN, PLEN)
+
+	// Fix up PCI memory region
+	// Start with Top of Lower Usable DRAM
+	Store (^MCHC.TLUD, Local0)
+	Store (^MCHC.MEBA, Local1)
+
+	// Check if ME base is equal
+	If (LEqual (Local0, Local1)) {
+		// Use Top Of Memory instead
+		Store (^MCHC.TOM, Local0)
+	}
+
+	Store (Local0, PMIN)
+	Add(Subtract(PMAX, PMIN), 1, PLEN)
+
+	Return (MCRS)
+}
+
+/* IRQ assignment is mainboard specific. Get it from mainboard ACPI code */
+#include "acpi/haswell_pci_irqs.asl"
+
+
diff --git a/src/northbridge/intel/haswell/acpi/igd.asl b/src/northbridge/intel/haswell/acpi/igd.asl
new file mode 100644
index 0000000..a6804ad
--- /dev/null
+++ b/src/northbridge/intel/haswell/acpi/igd.asl
@@ -0,0 +1,324 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+Device (GFX0)
+{
+	Name (_ADR, 0x00020000)
+
+	/* Display Output Switching */
+	Method (_DOS, 1)
+	{
+		/* Windows 2000 and Windows XP call _DOS to enable/disable
+		 * Display Output Switching during init and while a switch
+		 * is already active
+		 */
+		Store (And(Arg0, 7), DSEN)
+	}
+
+	/* We try to support as many i945 systems as possible,
+	 * so keep the number of DIDs flexible.
+	 */
+	Method (_DOD, 0)
+	{
+		If (LEqual(NDID, 1)) {
+			Name(DOD1, Package() {
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID1), Index(DOD1, 0))
+			Return(DOD1)
+		}
+
+		If (LEqual(NDID, 2)) {
+			Name(DOD2, Package() {
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID2), Index(DOD2, 0))
+			Store (Or(0x00010000, DID2), Index(DOD2, 1))
+			Return(DOD2)
+		}
+
+		If (LEqual(NDID, 3)) {
+			Name(DOD3, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID3), Index(DOD3, 0))
+			Store (Or(0x00010000, DID3), Index(DOD3, 1))
+			Store (Or(0x00010000, DID3), Index(DOD3, 2))
+			Return(DOD3)
+		}
+
+		If (LEqual(NDID, 4)) {
+			Name(DOD4, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID4), Index(DOD4, 0))
+			Store (Or(0x00010000, DID4), Index(DOD4, 1))
+			Store (Or(0x00010000, DID4), Index(DOD4, 2))
+			Store (Or(0x00010000, DID4), Index(DOD4, 3))
+			Return(DOD4)
+		}
+
+		If (LGreater(NDID, 4)) {
+			Name(DOD5, Package() {
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff,
+				0xffffffff
+			})
+			Store (Or(0x00010000, DID5), Index(DOD5, 0))
+			Store (Or(0x00010000, DID5), Index(DOD5, 1))
+			Store (Or(0x00010000, DID5), Index(DOD5, 2))
+			Store (Or(0x00010000, DID5), Index(DOD5, 3))
+			Store (Or(0x00010000, DID5), Index(DOD5, 4))
+			Return(DOD5)
+		}
+
+		/* Some error happened, but we have to return something */
+		Return (Package() {0x00000400})
+	}
+
+	Device(DD01)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID1, 0)) {
+				Return (1)
+			} Else {
+				Return (And(0xffff, DID1))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 1)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 1)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+	Device(DD02)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID2, 0)) {
+				Return (2)
+			} Else {
+				Return (And(0xffff, DID2))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 2)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 2)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD03)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID3, 0)) {
+				Return (3)
+			} Else {
+				Return (And(0xffff, DID3))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 4)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD04)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID4, 0)) {
+				Return (4)
+			} Else {
+				Return (And(0xffff, DID4))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 8)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+
+	Device(DD05)
+	{
+		/* Device Unique ID */
+		Method(_ADR, 0, Serialized)
+		{
+			If(LEqual(DID5, 0)) {
+				Return (5)
+			} Else {
+				Return (And(0xffff, DID5))
+			}
+		}
+
+		/* Device Current Status */
+		Method(_DCS, 0)
+		{
+			TRAP(1)
+			If (And(CSTE, 16)) {
+				Return (0x1f)
+			}
+			Return(0x1d)
+		}
+
+		/* Query Device Graphics State */
+		Method(_DGS, 0)
+		{
+			If (And(NSTE, 4)) {
+				Return(1)
+			}
+			Return(0)
+		}
+
+		/* Device Set State */
+		Method(_DSS, 1)
+		{
+			/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+			 * display switch was completed
+			 */
+			If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+				Store (NSTE, CSTE)
+			}
+		}
+	}
+
+}
+
diff --git a/src/northbridge/intel/haswell/chip.h b/src/northbridge/intel/haswell/chip.h
new file mode 100644
index 0000000..d60504c
--- /dev/null
+++ b/src/northbridge/intel/haswell/chip.h
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Digital Port Hotplug Enable:
+ *  0x04 = Enabled, 2ms short pulse
+ *  0x05 = Enabled, 4.5ms short pulse
+ *  0x06 = Enabled, 6ms short pulse
+ *  0x07 = Enabled, 100ms short pulse
+ */
+struct northbridge_intel_haswell_config {
+	u8 gpu_dp_b_hotplug; /* Digital Port B Hotplug Config */
+	u8 gpu_dp_c_hotplug; /* Digital Port C Hotplug Config */
+	u8 gpu_dp_d_hotplug; /* Digital Port D Hotplug Config */
+
+	u8 gpu_panel_port_select; /* 0=LVDS 1=DP_B 2=DP_C 3=DP_D */
+	u8 gpu_panel_power_cycle_delay;          /* T4 time sequence */
+	u16 gpu_panel_power_up_delay;            /* T1+T2 time sequence */
+	u16 gpu_panel_power_down_delay;          /* T3 time sequence */
+	u16 gpu_panel_power_backlight_on_delay;  /* T5 time sequence */
+	u16 gpu_panel_power_backlight_off_delay; /* Tx time sequence */
+
+	u32 gpu_cpu_backlight;	/* CPU Backlight PWM value */
+	u32 gpu_pch_backlight;	/* PCH Backlight PWM value */
+};
+
+extern struct chip_operations northbridge_intel_haswell_ops;
diff --git a/src/northbridge/intel/haswell/early_init.c b/src/northbridge/intel/haswell/early_init.c
new file mode 100644
index 0000000..b524f2e
--- /dev/null
+++ b/src/northbridge/intel/haswell/early_init.c
@@ -0,0 +1,167 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2010 coresystems GmbH
+ * Copyright (C) 2011 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <device/pci_def.h>
+#include <elog.h>
+#include "haswell.h"
+#include "pcie_config.c"
+
+static void haswell_setup_bars(void)
+{
+	/* Setting up Southbridge. In the northbridge code. */
+	printk(BIOS_DEBUG, "Setting up static southbridge registers...");
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), RCBA, DEFAULT_RCBA | 1);
+
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE, DEFAULT_PMBASE | 1);
+	pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44 /* ACPI_CNTL */ , 0x80); /* Enable ACPI BAR */
+
+	printk(BIOS_DEBUG, " done.\n");
+
+	printk(BIOS_DEBUG, "Disabling Watchdog reboot...");
+	RCBA32(GCS) = RCBA32(GCS) | (1 << 5);	/* No reset */
+	outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08);	/* halt timer */
+	printk(BIOS_DEBUG, " done.\n");
+
+	printk(BIOS_DEBUG, "Setting up static northbridge registers...");
+	/* Set up all hardcoded northbridge BARs */
+	pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR + 4, (0LL+DEFAULT_EPBAR) >> 32);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR, DEFAULT_MCHBAR | 1);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR + 4, (0LL+DEFAULT_MCHBAR) >> 32);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), PCIEXBAR, DEFAULT_PCIEXBAR | 5); /* 64MB - busses 0-63 */
+	pci_write_config32(PCI_DEV(0, 0x00, 0), PCIEXBAR + 4, (0LL+DEFAULT_PCIEXBAR) >> 32);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR, DEFAULT_DMIBAR | 1);
+	pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR + 4, (0LL+DEFAULT_DMIBAR) >> 32);
+
+	/* Set C0000-FFFFF to access RAM on both reads and writes */
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM0, 0x30);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM1, 0x33);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM2, 0x33);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM3, 0x33);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM4, 0x33);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM5, 0x33);
+	pci_write_config8(PCI_DEV(0, 0x00, 0), PAM6, 0x33);
+
+	printk(BIOS_DEBUG, " done.\n");
+
+#if CONFIG_ELOG_BOOT_COUNT
+	/* Increment Boot Counter except when resuming from S3 */
+	if ((inw(DEFAULT_PMBASE + PM1_STS) & WAK_STS) &&
+	    ((inl(DEFAULT_PMBASE + PM1_CNT) >> 10) & 7) == SLP_TYP_S3)
+		return;
+	boot_count_increment();
+#endif
+}
+
+static void haswell_setup_graphics(void)
+{
+	u32 reg32;
+	u16 reg16;
+	u8 reg8;
+
+	reg16 = pci_read_config16(PCI_DEV(0,2,0), PCI_DEVICE_ID);
+	switch (reg16) {
+	case 0x0102: /* GT1 Desktop */
+	case 0x0106: /* GT1 Mobile */
+	case 0x010a: /* GT1 Server */
+	case 0x0112: /* GT2 Desktop */
+	case 0x0116: /* GT2 Mobile */
+	case 0x0122: /* GT2 Desktop >=1.3GHz */
+	case 0x0126: /* GT2 Mobile >=1.3GHz */
+	case 0x0166: /* IvyBridge ??? */
+		break;
+	default:
+		printk(BIOS_DEBUG, "Graphics not supported by this CPU/chipset.\n");
+		return;
+	}
+
+	printk(BIOS_DEBUG, "Initializing Graphics...\n");
+
+	/* Setup IGD memory by setting GGC[7:3] = 1 for 32MB */
+	reg16 = pci_read_config16(PCI_DEV(0,0,0), GGC);
+	reg16 &= ~0x00f8;
+	reg16 |= 1 << 3;
+	/* Program GTT memory by setting GGC[9:8] = 2MB */
+	reg16 &= ~0x0300;
+	reg16 |= 2 << 8;
+	/* Enable VGA decode */
+	reg16 &= ~0x0002;
+	pci_write_config16(PCI_DEV(0,0,0), GGC, reg16);
+
+	/* Enable 256MB aperture */
+	reg8 = pci_read_config8(PCI_DEV(0, 2, 0), MSAC);
+	reg8 &= ~0x06;
+	reg8 |= 0x02;
+	pci_write_config8(PCI_DEV(0, 2, 0), MSAC, reg8);
+
+	/* Erratum workarounds */
+	reg32 = MCHBAR32(0x5f00);
+	reg32 |= (1 << 9)|(1 << 10);
+	MCHBAR32(0x5f00) = reg32;
+
+	/* Enable SA Clock Gating */
+	reg32 = MCHBAR32(0x5f00);
+	MCHBAR32(0x5f00) = reg32 | 1;
+
+	/* GPU RC6 workaround for sighting 366252 */
+	reg32 = MCHBAR32(0x5d14);
+	reg32 |= (1 << 31);
+	MCHBAR32(0x5d14) = reg32;
+
+	/* VLW */
+	reg32 = MCHBAR32(0x6120);
+	reg32 &= ~(1 << 0);
+	MCHBAR32(0x6120) = reg32;
+
+	reg32 = MCHBAR32(0x5418);
+	reg32 |= (1 << 4) | (1 << 5);
+	MCHBAR32(0x5418) = reg32;
+}
+
+void haswell_early_initialization(int chipset_type)
+{
+	u32 capid0_a;
+	u8 reg8;
+
+	/* Device ID Override Enable should be done very early */
+	capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), 0xe4);
+	if (capid0_a & (1 << 10)) {
+		reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xf3);
+		reg8 &= ~7; /* Clear 2:0 */
+
+		if (chipset_type == HASWELL_MOBILE)
+			reg8 |= 1; /* Set bit 0 */
+
+		pci_write_config8(PCI_DEV(0, 0, 0), 0xf3, reg8);
+	}
+
+	/* Setup all BARs required for early PCIe and raminit */
+	haswell_setup_bars();
+
+	/* Device Enable */
+	pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, DEVEN_HOST | DEVEN_IGD);
+
+	haswell_setup_graphics();
+}
diff --git a/src/northbridge/intel/haswell/finalize.c b/src/northbridge/intel/haswell/finalize.c
new file mode 100644
index 0000000..01843c9
--- /dev/null
+++ b/src/northbridge/intel/haswell/finalize.c
@@ -0,0 +1,58 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <stdlib.h>
+#include "pcie_config.c"
+#include "haswell.h"
+
+#define PCI_DEV_SNB PCI_DEV(0, 0, 0)
+
+void intel_northbridge_haswell_finalize_smm(void)
+{
+	pcie_or_config16(PCI_DEV_SNB, 0x50, 1 << 0);	/* GGC */
+	pcie_or_config32(PCI_DEV_SNB, 0x5c, 1 << 0);	/* DPR */
+	pcie_or_config32(PCI_DEV_SNB, 0x78, 1 << 10);	/* ME */
+	pcie_or_config32(PCI_DEV_SNB, 0x90, 1 << 0);	/* REMAPBASE */
+	pcie_or_config32(PCI_DEV_SNB, 0x98, 1 << 0);	/* REMAPLIMIT */
+	pcie_or_config32(PCI_DEV_SNB, 0xa0, 1 << 0);	/* TOM */
+	pcie_or_config32(PCI_DEV_SNB, 0xa8, 1 << 0);	/* TOUUD */
+	pcie_or_config32(PCI_DEV_SNB, 0xb0, 1 << 0);	/* BDSM */
+	pcie_or_config32(PCI_DEV_SNB, 0xb4, 1 << 0);	/* BGSM */
+	pcie_or_config32(PCI_DEV_SNB, 0xb8, 1 << 0);	/* TSEGMB */
+	pcie_or_config32(PCI_DEV_SNB, 0xbc, 1 << 0);	/* TOLUD */
+
+	MCHBAR32_OR(0x5500, 1 << 0);	/* PAVP */
+	MCHBAR32_OR(0x5f00, 1 << 31);	/* SA PM */
+	MCHBAR32_OR(0x6020, 1 << 0);	/* UMA GFX */
+	MCHBAR32_OR(0x63fc, 1 << 0);	/* VTDTRK */
+	MCHBAR32_OR(0x6800, 1 << 31);
+	MCHBAR32_OR(0x7000, 1 << 31);
+	MCHBAR32_OR(0x77fc, 1 << 0);
+
+	/* Memory Controller Lockdown */
+	MCHBAR8(0x50fc) = 0x8f;
+
+	/* Read+write the following */
+	MCHBAR32(0x6030) = MCHBAR32(0x6030);
+	MCHBAR32(0x6034) = MCHBAR32(0x6034);
+	MCHBAR32(0x6008) = MCHBAR32(0x6008);
+}
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c
new file mode 100644
index 0000000..08c13df
--- /dev/null
+++ b/src/northbridge/intel/haswell/gma.c
@@ -0,0 +1,670 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Chromium OS Authors
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <delay.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+#include "chip.h"
+#include "haswell.h"
+
+struct gt_powermeter {
+	u16 reg;
+	u32 value;
+};
+
+static const struct gt_powermeter snb_pm_gt1[] = {
+	{ 0xa200, 0xcc000000 },
+	{ 0xa204, 0x07000040 },
+	{ 0xa208, 0x0000fe00 },
+	{ 0xa20c, 0x00000000 },
+	{ 0xa210, 0x17000000 },
+	{ 0xa214, 0x00000021 },
+	{ 0xa218, 0x0817fe19 },
+	{ 0xa21c, 0x00000000 },
+	{ 0xa220, 0x00000000 },
+	{ 0xa224, 0xcc000000 },
+	{ 0xa228, 0x07000040 },
+	{ 0xa22c, 0x0000fe00 },
+	{ 0xa230, 0x00000000 },
+	{ 0xa234, 0x17000000 },
+	{ 0xa238, 0x00000021 },
+	{ 0xa23c, 0x0817fe19 },
+	{ 0xa240, 0x00000000 },
+	{ 0xa244, 0x00000000 },
+	{ 0xa248, 0x8000421e },
+	{ 0 }
+};
+
+static const struct gt_powermeter snb_pm_gt2[] = {
+	{ 0xa200, 0x330000a6 },
+	{ 0xa204, 0x402d0031 },
+	{ 0xa208, 0x00165f83 },
+	{ 0xa20c, 0xf1000000 },
+	{ 0xa210, 0x00000000 },
+	{ 0xa214, 0x00160016 },
+	{ 0xa218, 0x002a002b },
+	{ 0xa21c, 0x00000000 },
+	{ 0xa220, 0x00000000 },
+	{ 0xa224, 0x330000a6 },
+	{ 0xa228, 0x402d0031 },
+	{ 0xa22c, 0x00165f83 },
+	{ 0xa230, 0xf1000000 },
+	{ 0xa234, 0x00000000 },
+	{ 0xa238, 0x00160016 },
+	{ 0xa23c, 0x002a002b },
+	{ 0xa240, 0x00000000 },
+	{ 0xa244, 0x00000000 },
+	{ 0xa248, 0x8000421e },
+	{ 0 }
+};
+
+static const struct gt_powermeter ivb_pm_gt1[] = {
+	{ 0xa800, 0x00000000 },
+	{ 0xa804, 0x00021c00 },
+	{ 0xa808, 0x00000403 },
+	{ 0xa80c, 0x02001700 },
+	{ 0xa810, 0x05000200 },
+	{ 0xa814, 0x00000000 },
+	{ 0xa818, 0x00690500 },
+	{ 0xa81c, 0x0000007f },
+	{ 0xa820, 0x01002501 },
+	{ 0xa824, 0x00000300 },
+	{ 0xa828, 0x01000331 },
+	{ 0xa82c, 0x0000000c },
+	{ 0xa830, 0x00010016 },
+	{ 0xa834, 0x01100101 },
+	{ 0xa838, 0x00010103 },
+	{ 0xa83c, 0x00041300 },
+	{ 0xa840, 0x00000b30 },
+	{ 0xa844, 0x00000000 },
+	{ 0xa848, 0x7f000000 },
+	{ 0xa84c, 0x05000008 },
+	{ 0xa850, 0x00000001 },
+	{ 0xa854, 0x00000004 },
+	{ 0xa858, 0x00000007 },
+	{ 0xa85c, 0x00000000 },
+	{ 0xa860, 0x00010000 },
+	{ 0xa248, 0x0000221e },
+	{ 0xa900, 0x00000000 },
+	{ 0xa904, 0x00001c00 },
+	{ 0xa908, 0x00000000 },
+	{ 0xa90c, 0x06000000 },
+	{ 0xa910, 0x09000200 },
+	{ 0xa914, 0x00000000 },
+	{ 0xa918, 0x00590000 },
+	{ 0xa91c, 0x00000000 },
+	{ 0xa920, 0x04002501 },
+	{ 0xa924, 0x00000100 },
+	{ 0xa928, 0x03000410 },
+	{ 0xa92c, 0x00000000 },
+	{ 0xa930, 0x00020000 },
+	{ 0xa934, 0x02070106 },
+	{ 0xa938, 0x00010100 },
+	{ 0xa93c, 0x00401c00 },
+	{ 0xa940, 0x00000000 },
+	{ 0xa944, 0x00000000 },
+	{ 0xa948, 0x10000e00 },
+	{ 0xa94c, 0x02000004 },
+	{ 0xa950, 0x00000001 },
+	{ 0xa954, 0x00000004 },
+	{ 0xa960, 0x00060000 },
+	{ 0xaa3c, 0x00001c00 },
+	{ 0xaa54, 0x00000004 },
+	{ 0xaa60, 0x00060000 },
+	{ 0 }
+};
+
+static const struct gt_powermeter ivb_pm_gt2[] = {
+	{ 0xa800, 0x10000000 },
+	{ 0xa804, 0x00033800 },
+	{ 0xa808, 0x00000902 },
+	{ 0xa80c, 0x0c002f00 },
+	{ 0xa810, 0x12000400 },
+	{ 0xa814, 0x00000000 },
+	{ 0xa818, 0x00d20800 },
+	{ 0xa81c, 0x00000002 },
+	{ 0xa820, 0x03004b02 },
+	{ 0xa824, 0x00000600 },
+	{ 0xa828, 0x07000773 },
+	{ 0xa82c, 0x00000000 },
+	{ 0xa830, 0x00010032 },
+	{ 0xa834, 0x1520040d },
+	{ 0xa838, 0x00020105 },
+	{ 0xa83c, 0x00083700 },
+	{ 0xa840, 0x0000151d },
+	{ 0xa844, 0x00000000 },
+	{ 0xa848, 0x20001b00 },
+	{ 0xa84c, 0x0a000010 },
+	{ 0xa850, 0x00000000 },
+	{ 0xa854, 0x00000008 },
+	{ 0xa858, 0x00000008 },
+	{ 0xa85c, 0x00000000 },
+	{ 0xa860, 0x00020000 },
+	{ 0xa248, 0x0000221e },
+	{ 0xa900, 0x00000000 },
+	{ 0xa904, 0x00003500 },
+	{ 0xa908, 0x00000000 },
+	{ 0xa90c, 0x0c000000 },
+	{ 0xa910, 0x12000500 },
+	{ 0xa914, 0x00000000 },
+	{ 0xa918, 0x00b20000 },
+	{ 0xa91c, 0x00000000 },
+	{ 0xa920, 0x08004b02 },
+	{ 0xa924, 0x00000200 },
+	{ 0xa928, 0x07000820 },
+	{ 0xa92c, 0x00000000 },
+	{ 0xa930, 0x00030000 },
+	{ 0xa934, 0x050f020d },
+	{ 0xa938, 0x00020300 },
+	{ 0xa93c, 0x00903900 },
+	{ 0xa940, 0x00000000 },
+	{ 0xa944, 0x00000000 },
+	{ 0xa948, 0x20001b00 },
+	{ 0xa94c, 0x0a000010 },
+	{ 0xa950, 0x00000000 },
+	{ 0xa954, 0x00000008 },
+	{ 0xa960, 0x00110000 },
+	{ 0xaa3c, 0x00003900 },
+	{ 0xaa54, 0x00000008 },
+	{ 0xaa60, 0x00110000 },
+	{ 0 }
+};
+
+static const struct gt_powermeter ivb_pm_gt2_17w[] = {
+	{ 0xa800, 0x20000000 },
+	{ 0xa804, 0x000e3800 },
+	{ 0xa808, 0x00000806 },
+	{ 0xa80c, 0x0c002f00 },
+	{ 0xa810, 0x0c000800 },
+	{ 0xa814, 0x00000000 },
+	{ 0xa818, 0x00d20d00 },
+	{ 0xa81c, 0x000000ff },
+	{ 0xa820, 0x03004b02 },
+	{ 0xa824, 0x00000600 },
+	{ 0xa828, 0x07000773 },
+	{ 0xa82c, 0x00000000 },
+	{ 0xa830, 0x00020032 },
+	{ 0xa834, 0x1520040d },
+	{ 0xa838, 0x00020105 },
+	{ 0xa83c, 0x00083700 },
+	{ 0xa840, 0x000016ff },
+	{ 0xa844, 0x00000000 },
+	{ 0xa848, 0xff000000 },
+	{ 0xa84c, 0x0a000010 },
+	{ 0xa850, 0x00000002 },
+	{ 0xa854, 0x00000008 },
+	{ 0xa858, 0x0000000f },
+	{ 0xa85c, 0x00000000 },
+	{ 0xa860, 0x00020000 },
+	{ 0xa248, 0x0000221e },
+	{ 0xa900, 0x00000000 },
+	{ 0xa904, 0x00003800 },
+	{ 0xa908, 0x00000000 },
+	{ 0xa90c, 0x0c000000 },
+	{ 0xa910, 0x12000800 },
+	{ 0xa914, 0x00000000 },
+	{ 0xa918, 0x00b20000 },
+	{ 0xa91c, 0x00000000 },
+	{ 0xa920, 0x08004b02 },
+	{ 0xa924, 0x00000300 },
+	{ 0xa928, 0x01000820 },
+	{ 0xa92c, 0x00000000 },
+	{ 0xa930, 0x00030000 },
+	{ 0xa934, 0x15150406 },
+	{ 0xa938, 0x00020300 },
+	{ 0xa93c, 0x00903900 },
+	{ 0xa940, 0x00000000 },
+	{ 0xa944, 0x00000000 },
+	{ 0xa948, 0x20001b00 },
+	{ 0xa94c, 0x0a000010 },
+	{ 0xa950, 0x00000000 },
+	{ 0xa954, 0x00000008 },
+	{ 0xa960, 0x00110000 },
+	{ 0xaa3c, 0x00003900 },
+	{ 0xaa54, 0x00000008 },
+	{ 0xaa60, 0x00110000 },
+	{ 0 }
+};
+
+static const struct gt_powermeter ivb_pm_gt2_35w[] = {
+	{ 0xa800, 0x00000000 },
+	{ 0xa804, 0x00030400 },
+	{ 0xa808, 0x00000806 },
+	{ 0xa80c, 0x0c002f00 },
+	{ 0xa810, 0x0c000300 },
+	{ 0xa814, 0x00000000 },
+	{ 0xa818, 0x00d20d00 },
+	{ 0xa81c, 0x000000ff },
+	{ 0xa820, 0x03004b02 },
+	{ 0xa824, 0x00000600 },
+	{ 0xa828, 0x07000773 },
+	{ 0xa82c, 0x00000000 },
+	{ 0xa830, 0x00020032 },
+	{ 0xa834, 0x1520040d },
+	{ 0xa838, 0x00020105 },
+	{ 0xa83c, 0x00083700 },
+	{ 0xa840, 0x000016ff },
+	{ 0xa844, 0x00000000 },
+	{ 0xa848, 0xff000000 },
+	{ 0xa84c, 0x0a000010 },
+	{ 0xa850, 0x00000001 },
+	{ 0xa854, 0x00000008 },
+	{ 0xa858, 0x00000008 },
+	{ 0xa85c, 0x00000000 },
+	{ 0xa860, 0x00020000 },
+	{ 0xa248, 0x0000221e },
+	{ 0xa900, 0x00000000 },
+	{ 0xa904, 0x00003800 },
+	{ 0xa908, 0x00000000 },
+	{ 0xa90c, 0x0c000000 },
+	{ 0xa910, 0x12000800 },
+	{ 0xa914, 0x00000000 },
+	{ 0xa918, 0x00b20000 },
+	{ 0xa91c, 0x00000000 },
+	{ 0xa920, 0x08004b02 },
+	{ 0xa924, 0x00000300 },
+	{ 0xa928, 0x01000820 },
+	{ 0xa92c, 0x00000000 },
+	{ 0xa930, 0x00030000 },
+	{ 0xa934, 0x15150406 },
+	{ 0xa938, 0x00020300 },
+	{ 0xa93c, 0x00903900 },
+	{ 0xa940, 0x00000000 },
+	{ 0xa944, 0x00000000 },
+	{ 0xa948, 0x20001b00 },
+	{ 0xa94c, 0x0a000010 },
+	{ 0xa950, 0x00000000 },
+	{ 0xa954, 0x00000008 },
+	{ 0xa960, 0x00110000 },
+	{ 0xaa3c, 0x00003900 },
+	{ 0xaa54, 0x00000008 },
+	{ 0xaa60, 0x00110000 },
+	{ 0 }
+};
+
+/* some vga option roms are used for several chipsets but they only have one
+ * PCI ID in their header. If we encounter such an option rom, we need to do
+ * the mapping ourselfes
+ */
+
+u32 map_oprom_vendev(u32 vendev)
+{
+	u32 new_vendev=vendev;
+
+	switch (vendev) {
+	case 0x80860102:		/* GT1 Desktop */
+	case 0x8086010a:		/* GT1 Server */
+	case 0x80860112:		/* GT2 Desktop */
+	case 0x80860116:		/* GT2 Mobile */
+	case 0x80860122:		/* GT2 Desktop >=1.3GHz */
+	case 0x80860126:		/* GT2 Mobile >=1.3GHz */
+	case 0x80860166:                /* IVB */
+		new_vendev=0x80860106;	/* GT1 Mobile */
+		break;
+	}
+
+	return new_vendev;
+}
+
+static struct resource *gtt_res = NULL;
+
+static inline u32 gtt_read(u32 reg)
+{
+	return read32(gtt_res->base + reg);
+}
+
+static inline void gtt_write(u32 reg, u32 data)
+{
+	write32(gtt_res->base + reg, data);
+}
+
+static inline void gtt_write_powermeter(const struct gt_powermeter *pm)
+{
+	for (; pm && pm->reg; pm++)
+		gtt_write(pm->reg, pm->value);
+}
+
+#define GTT_RETRY 1000
+static int gtt_poll(u32 reg, u32 mask, u32 value)
+{
+	unsigned try = GTT_RETRY;
+	u32 data;
+
+	while (try--) {
+		data = gtt_read(reg);
+		if ((data & mask) == value)
+			return 1;
+		udelay(10);
+	}
+
+	printk(BIOS_ERR, "GT init timeout\n");
+	return 0;
+}
+
+static void gma_pm_init_pre_vbios(struct device *dev)
+{
+	u32 reg32;
+
+	printk(BIOS_DEBUG, "GT Power Management Init\n");
+
+	gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
+	if (!gtt_res || !gtt_res->base)
+		return;
+
+	if (bridge_silicon_revision() < IVB_STEP_C0) {
+		/* 1: Enable force wake */
+		gtt_write(0xa18c, 0x00000001);
+		gtt_poll(0x130090, (1 << 0), (1 << 0));
+	} else {
+		gtt_write(0xa180, 1 << 5);
+		gtt_write(0xa188, 0xffff0001);
+		gtt_poll(0x130040, (1 << 0), (1 << 0));
+	}
+
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+		/* 1d: Set GTT+0x42004 [15:14]=11 (SnB C1+) */
+		reg32 = gtt_read(0x42004);
+		reg32 |= (1 << 14) | (1 << 15);
+		gtt_write(0x42004, reg32);
+	}
+
+	if (bridge_silicon_revision() >= IVB_STEP_A0) {
+		/* Display Reset Acknowledge Settings */
+		reg32 = gtt_read(0x45010);
+		reg32 |= (1 << 1) | (1 << 0);
+		gtt_write(0x45010, reg32);
+	}
+
+	/* 2: Get GT SKU from GTT+0x911c[13] */
+	reg32 = gtt_read(0x911c);
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+		if (reg32 & (1 << 13)) {
+			printk(BIOS_DEBUG, "SNB GT1 Power Meter Weights\n");
+			gtt_write_powermeter(snb_pm_gt1);
+		} else {
+			printk(BIOS_DEBUG, "SNB GT2 Power Meter Weights\n");
+			gtt_write_powermeter(snb_pm_gt2);
+		}
+	} else {
+		u32 unit = MCHBAR32(0x5938) & 0xf;
+
+		if (reg32 & (1 << 13)) {
+			/* GT1 SKU */
+			printk(BIOS_DEBUG, "IVB GT1 Power Meter Weights\n");
+			gtt_write_powermeter(ivb_pm_gt1);
+		} else {
+			/* GT2 SKU */
+			u32 tdp = MCHBAR32(0x5930) & 0x7fff;
+			tdp /= (1 << unit);
+
+			if (tdp <= 17) {
+				/* <=17W ULV */
+				printk(BIOS_DEBUG, "IVB GT2 17W "
+				       "Power Meter Weights\n");
+				gtt_write_powermeter(ivb_pm_gt2_17w);
+			} else if ((tdp >= 25) && (tdp <= 35)) {
+				/* 25W-35W */
+				printk(BIOS_DEBUG, "IVB GT2 25W-35W "
+				       "Power Meter Weights\n");
+				gtt_write_powermeter(ivb_pm_gt2_35w);
+			} else {
+				/* All others */
+				printk(BIOS_DEBUG, "IVB GT2 35W "
+				       "Power Meter Weights\n");
+				gtt_write_powermeter(ivb_pm_gt2_35w);
+			}
+		}
+	}
+
+	/* 3: Gear ratio map */
+	gtt_write(0xa004, 0x00000010);
+
+	/* 4: GFXPAUSE */
+	gtt_write(0xa000, 0x00070020);
+
+	/* 5: Dynamic EU trip control */
+	gtt_write(0xa080, 0x00000004);
+
+	/* 6: ECO bits */
+	reg32 = gtt_read(0xa180);
+	reg32 |= (1 << 26) | (1 << 31);
+	/* (bit 20=1 for SNB step D1+ / IVB A0+) */
+	if (bridge_silicon_revision() >= SNB_STEP_D1)
+		reg32 |= (1 << 20);
+	gtt_write(0xa180, reg32);
+
+	/* 6a: for SnB step D2+ only */
+	if (((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) &&
+		(bridge_silicon_revision() >= SNB_STEP_D2)) {
+		reg32 = gtt_read(0x9400);
+		reg32 |= (1 << 7);
+		gtt_write(0x9400, reg32);
+
+		reg32 = gtt_read(0x941c);
+		reg32 &= 0xf;
+		reg32 |= (1 << 1);
+		gtt_write(0x941c, reg32);
+		gtt_poll(0x941c, (1 << 1), (0 << 1));
+	}
+
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
+		reg32 = gtt_read(0x907c);
+		reg32 |= (1 << 16);
+		gtt_write(0x907c, reg32);
+
+		/* 6b: Clocking reset controls */
+		gtt_write(0x9424, 0x00000001);
+	} else {
+		/* 6b: Clocking reset controls */
+		gtt_write(0x9424, 0x00000000);
+	}
+
+	/* 7 */
+	if (gtt_poll(0x138124, (1 << 31), (0 << 31))) {
+		gtt_write(0x138128, 0x00000029); /* Mailbox Data */
+		gtt_write(0x138124, 0x80000004); /* Mailbox Cmd for RC6 VID */
+		if (gtt_poll(0x138124, (1 << 31), (0 << 31)))
+			gtt_write(0x138124, 0x8000000a);
+		gtt_poll(0x138124, (1 << 31), (0 << 31));
+	}
+
+	/* 8 */
+	gtt_write(0xa090, 0x00000000); /* RC Control */
+	gtt_write(0xa098, 0x03e80000); /* RC1e Wake Rate Limit */
+	gtt_write(0xa09c, 0x0028001e); /* RC6/6p Wake Rate Limit */
+	gtt_write(0xa0a0, 0x0000001e); /* RC6pp Wake Rate Limit */
+	gtt_write(0xa0a8, 0x0001e848); /* RC Evaluation Interval */
+	gtt_write(0xa0ac, 0x00000019); /* RC Idle Hysteresis */
+
+	/* 9 */
+	gtt_write(0x2054, 0x0000000a); /* Render Idle Max Count */
+	gtt_write(0x12054,0x0000000a); /* Video Idle Max Count */
+	gtt_write(0x22054,0x0000000a); /* Blitter Idle Max Count */
+
+	/* 10 */
+	gtt_write(0xa0b0, 0x00000000); /* Unblock Ack to Busy */
+	gtt_write(0xa0b4, 0x000003e8); /* RC1e Threshold */
+	gtt_write(0xa0b8, 0x0000c350); /* RC6 Threshold */
+	gtt_write(0xa0bc, 0x000186a0); /* RC6p Threshold */
+	gtt_write(0xa0c0, 0x0000fa00); /* RC6pp Threshold */
+
+	/* 11 */
+	gtt_write(0xa010, 0x000f4240); /* RP Down Timeout */
+	gtt_write(0xa014, 0x12060000); /* RP Interrupt Limits */
+	gtt_write(0xa02c, 0x00015f90); /* RP Up Threshold */
+	gtt_write(0xa030, 0x000186a0); /* RP Down Threshold */
+	gtt_write(0xa068, 0x000186a0); /* RP Up EI */
+	gtt_write(0xa06c, 0x000493e0); /* RP Down EI */
+	gtt_write(0xa070, 0x0000000a); /* RP Idle Hysteresis */
+
+	/* 11a: Enable Render Standby (RC6) */
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
+		/*
+		 * IvyBridge should also support DeepRenderStandby.
+		 *
+		 * Unfortunately it does not work reliably on all SKUs so
+		 * disable it here and it can be enabled by the kernel.
+		 */
+		gtt_write(0xa090, 0x88040000); /* HW RC Control */
+	} else {
+		gtt_write(0xa090, 0x88040000); /* HW RC Control */
+	}
+
+	/* 12: Normal Frequency Request */
+	/* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 (8 bits!? use 7) */
+	reg32 = MCHBAR32(0x5998);
+	reg32 >>= 16;
+	reg32 &= 0xef;
+	reg32 <<= 25;
+	gtt_write(0xa008, reg32);
+
+	/* 13: RP Control */
+	gtt_write(0xa024, 0x00000592);
+
+	/* 14: Enable PM Interrupts */
+	gtt_write(0x4402c, 0x03000076);
+
+	/* Clear 0x6c024 [8:6] */
+	reg32 = gtt_read(0x6c024);
+	reg32 &= ~0x000001c0;
+	gtt_write(0x6c024, reg32);
+}
+
+static void gma_pm_init_post_vbios(struct device *dev)
+{
+	struct northbridge_intel_haswell_config *conf = dev->chip_info;
+	u32 reg32;
+
+	printk(BIOS_DEBUG, "GT Power Management Init (post VBIOS)\n");
+
+	/* 15: Deassert Force Wake */
+	if (bridge_silicon_revision() < IVB_STEP_C0) {
+		gtt_write(0xa18c, gtt_read(0xa18c) & ~1);
+		gtt_poll(0x130090, (1 << 0), (0 << 0));
+	} else {
+		gtt_write(0xa188, 0x1fffe);
+		if (gtt_poll(0x130040, (1 << 0), (0 << 0)))
+			gtt_write(0xa188, gtt_read(0xa188) | 1);
+	}
+
+	/* 16: SW RC Control */
+	gtt_write(0xa094, 0x00060000);
+
+	/* Setup Digital Port Hotplug */
+	reg32 = gtt_read(0xc4030);
+	if (!reg32) {
+		reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2;
+		reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10;
+		reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18;
+		gtt_write(0xc4030, reg32);
+	}
+
+	/* Setup Panel Power On Delays */
+	reg32 = gtt_read(0xc7208);
+	if (!reg32) {
+		reg32 = (conf->gpu_panel_port_select & 0x3) << 30;
+		reg32 |= (conf->gpu_panel_power_up_delay & 0x1fff) << 16;
+		reg32 |= (conf->gpu_panel_power_backlight_on_delay & 0x1fff);
+		gtt_write(0xc7208, reg32);
+	}
+
+	/* Setup Panel Power Off Delays */
+	reg32 = gtt_read(0xc720c);
+	if (!reg32) {
+		reg32 = (conf->gpu_panel_power_down_delay & 0x1fff) << 16;
+		reg32 |= (conf->gpu_panel_power_backlight_off_delay & 0x1fff);
+		gtt_write(0xc720c, reg32);
+	}
+
+	/* Setup Panel Power Cycle Delay */
+	if (conf->gpu_panel_power_cycle_delay) {
+		reg32 = gtt_read(0xc7210);
+		reg32 &= ~0xff;
+		reg32 |= conf->gpu_panel_power_cycle_delay & 0xff;
+		gtt_write(0xc7210, reg32);
+	}
+
+	/* Enable Backlight if needed */
+	if (conf->gpu_cpu_backlight) {
+		gtt_write(0x48250, (1 << 31));
+		gtt_write(0x48254, conf->gpu_cpu_backlight);
+	}
+	if (conf->gpu_pch_backlight) {
+		gtt_write(0xc8250, (1 << 31));
+		gtt_write(0xc8254, conf->gpu_pch_backlight);
+	}
+}
+
+static void gma_func0_init(struct device *dev)
+{
+	u32 reg32;
+
+	/* IGD needs to be Bus Master */
+	reg32 = pci_read_config32(dev, PCI_COMMAND);
+	reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+	pci_write_config32(dev, PCI_COMMAND, reg32);
+
+	/* Init graphics power management */
+	gma_pm_init_pre_vbios(dev);
+
+	/* PCI Init, will run VBIOS */
+	pci_dev_init(dev);
+
+	/* Post VBIOS init */
+	gma_pm_init_post_vbios(dev);
+}
+
+static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	if (!vendor || !device) {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static struct pci_operations gma_pci_ops = {
+	.set_subsystem    = gma_set_subsystem,
+};
+
+static struct device_operations gma_func0_ops = {
+	.read_resources		= pci_dev_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= pci_dev_enable_resources,
+	.init			= gma_func0_init,
+	.scan_bus		= 0,
+	.enable			= 0,
+	.ops_pci		= &gma_pci_ops,
+};
+
+static const unsigned short pci_device_ids[] = { 0x0102, 0x0106, 0x010a, 0x0112,
+						 0x0116, 0x0122, 0x0126, 0x0166,
+						 0 };
+
+static const struct pci_driver pch_lpc __pci_driver = {
+	.ops	 = &gma_func0_ops,
+	.vendor	 = PCI_VENDOR_ID_INTEL,
+	.devices = pci_device_ids,
+};
diff --git a/src/northbridge/intel/haswell/gma.h b/src/northbridge/intel/haswell/gma.h
new file mode 100644
index 0000000..bfa43ef
--- /dev/null
+++ b/src/northbridge/intel/haswell/gma.h
@@ -0,0 +1,168 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Chromium OS Authors
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* mailbox 0: header */
+typedef struct {
+	u8	signature[16];
+	u32	size;
+	u32	version;
+	u8	sbios_version[32];
+	u8	vbios_version[16];
+	u8	driver_version[16];
+	u32	mailboxes;
+	u8	reserved[164];
+} __attribute__((packed)) opregion_header_t;
+
+#define IGD_OPREGION_SIGNATURE "IntelGraphicsMem"
+#define IGD_OPREGION_VERSION  2
+
+#define IGD_MBOX1	(1 << 0)
+#define IGD_MBOX2	(1 << 1)
+#define IGD_MBOX3	(1 << 2)
+#define IGD_MBOX4	(1 << 3)
+#define IGD_MBOX5	(1 << 4)
+
+#define MAILBOXES_MOBILE  (IGD_MBOX1 | IGD_MBOX2 | IGD_MBOX3 | \
+			   IGD_MBOX4 | IGD_MBOX5)
+#define MAILBOXES_DESKTOP (IGD_MBOX2 | IGD_MBOX4)
+
+#define SBIOS_VERSION_SIZE 32
+
+/* mailbox 1: public acpi methods */
+typedef struct {
+	u32	drdy;
+	u32	csts;
+	u32	cevt;
+	u8	reserved1[20];
+	u32	didl[8];
+	u32	cpdl[8];
+	u32	cadl[8];
+	u32	nadl[8];
+	u32	aslp;
+	u32	tidx;
+	u32	chpd;
+	u32	clid;
+	u32	cdck;
+	u32	sxsw;
+	u32	evts;
+	u32	cnot;
+	u32	nrdy;
+	u8	reserved2[60];
+} __attribute__((packed)) opregion_mailbox1_t;
+
+/* mailbox 2: software sci interface */
+typedef struct {
+	u32	scic;
+	u32	parm;
+	u32	dslp;
+	u8	reserved[244];
+} __attribute__((packed)) opregion_mailbox2_t;
+
+/* mailbox 3: power conservation */
+typedef struct {
+	u32	ardy;
+	u32	aslc;
+	u32	tche;
+	u32	alsi;
+	u32	bclp;
+	u32	pfit;
+	u32	cblv;
+	u16	bclm[20];
+	u32	cpfm;
+	u32	epfm;
+	u8	plut[74];
+	u32	pfmb;
+	u32	ccdv;
+	u32	pcft;
+	u8	reserved[94];
+} __attribute__((packed)) opregion_mailbox3_t;
+
+#define IGD_BACKLIGHT_BRIGHTNESS 0xff
+#define IGD_INITIAL_BRIGHTNESS 0x64
+
+#define IGD_FIELD_VALID	(1 << 31)
+#define IGD_WORD_FIELD_VALID (1 << 15)
+#define IGD_PFIT_STRETCH 6
+
+/* mailbox 4: vbt */
+typedef struct {
+	u8 gvd1[7168];
+} __attribute__((packed)) opregion_vbt_t;
+
+/* IGD OpRegion */
+typedef struct {
+	opregion_header_t header;
+	opregion_mailbox1_t mailbox1;
+	opregion_mailbox2_t mailbox2;
+	opregion_mailbox3_t mailbox3;
+	opregion_vbt_t vbt;
+} __attribute__((packed)) igd_opregion_t;
+
+/* Intel Video BIOS (Option ROM) */
+typedef struct {
+	u16	signature;
+	u8	size;
+	u8	reserved[21];
+	u16	pcir_offset;
+	u16	vbt_offset;
+} __attribute__((packed)) optionrom_header_t;
+
+#define OPROM_SIGNATURE 0xaa55
+
+typedef struct {
+	u32 signature;
+	u16 vendor;
+	u16 device;
+	u16 reserved1;
+	u16 length;
+	u8  revision;
+	u8  classcode[3];
+	u16 imagelength;
+	u16 coderevision;
+	u8  codetype;
+	u8  indicator;
+	u16 reserved2;
+} __attribute__((packed)) optionrom_pcir_t;
+
+typedef struct {
+	u8  hdr_signature[20];
+	u16 hdr_version;
+	u16 hdr_size;
+	u16 hdr_vbt_size;
+	u8  hdr_vbt_checksum;
+	u8  hdr_reserved;
+	u32 hdr_vbt_datablock;
+	u32 hdr_aim[4];
+	u8  datahdr_signature[16];
+	u16 datahdr_version;
+	u16 datahdr_size;
+	u16 datahdr_datablocksize;
+	u8  coreblock_id;
+	u16 coreblock_size;
+	u16 coreblock_biossize;
+	u8  coreblock_biostype;
+	u8  coreblock_releasestatus;
+	u8  coreblock_hwsupported;
+	u8  coreblock_integratedhw;
+	u8  coreblock_biosbuild[4];
+	u8  coreblock_biossignon[155];
+} __attribute__((packed)) optionrom_vbt_t;
+
+#define VBT_SIGNATURE 0x54425624
+
diff --git a/src/northbridge/intel/haswell/haswell.h b/src/northbridge/intel/haswell/haswell.h
new file mode 100644
index 0000000..967a186
--- /dev/null
+++ b/src/northbridge/intel/haswell/haswell.h
@@ -0,0 +1,243 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ * Copyright (C) 2011 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __NORTHBRIDGE_INTEL_HASWELL_HASWELL_H__
+#define __NORTHBRIDGE_INTEL_HASWELL_HASWELL_H__ 1
+
+/* Chipset types */
+#define HASWELL_MOBILE	0
+#define HASWELL_DESKTOP	1
+#define HASWELL_SERVER	2
+
+/* Device ID for SandyBridge and IvyBridge */
+#define BASE_REV_SNB	0x00
+#define BASE_REV_IVB	0x50
+#define BASE_REV_MASK	0x50
+
+/* SandyBridge CPU stepping */
+#define SNB_STEP_D0	(BASE_REV_SNB + 5) /* Also J0 */
+#define SNB_STEP_D1	(BASE_REV_SNB + 6)
+#define SNB_STEP_D2	(BASE_REV_SNB + 7) /* Also J1/Q0 */
+
+/* IvyBridge CPU stepping */
+#define IVB_STEP_A0	(BASE_REV_IVB + 0)
+#define IVB_STEP_B0	(BASE_REV_IVB + 2)
+#define IVB_STEP_C0	(BASE_REV_IVB + 4)
+#define IVB_STEP_K0	(BASE_REV_IVB + 5)
+#define IVB_STEP_D0	(BASE_REV_IVB + 6)
+
+/* Intel Enhanced Debug region must be 4MB */
+#define IED_SIZE	0x400000
+
+/* Northbridge BARs */
+#define DEFAULT_PCIEXBAR	CONFIG_MMCONF_BASE_ADDRESS	/* 4 KB per PCIe device */
+#define DEFAULT_MCHBAR		0xfed10000	/* 16 KB */
+#define DEFAULT_DMIBAR		0xfed18000	/* 4 KB */
+#define DEFAULT_EPBAR		0xfed19000	/* 4 KB */
+
+#include <southbridge/intel/lynxpoint/pch.h>
+
+/* Everything below this line is ignored in the DSDT */
+#ifndef __ACPI__
+
+/* Device 0:0.0 PCI configuration space (Host Bridge) */
+
+#define EPBAR		0x40
+#define MCHBAR		0x48
+#define PCIEXBAR	0x60
+#define DMIBAR		0x68
+#define X60BAR		0x60
+
+#define GGC		0x50			/* GMCH Graphics Control */
+
+#define DEVEN		0x54			/* Device Enable */
+#define  DEVEN_PEG60	(1 << 13)
+#define  DEVEN_IGD	(1 << 4)
+#define  DEVEN_PEG10	(1 << 3)
+#define  DEVEN_PEG11	(1 << 2)
+#define  DEVEN_PEG12	(1 << 1)
+#define  DEVEN_HOST	(1 << 0)
+
+#define PAM0		0x80
+#define PAM1		0x81
+#define PAM2		0x82
+#define PAM3		0x83
+#define PAM4		0x84
+#define PAM5		0x85
+#define PAM6		0x86
+
+#define LAC		0x87	/* Legacy Access Control */
+#define SMRAM		0x88	/* System Management RAM Control */
+#define  D_OPEN		(1 << 6)
+#define  D_CLS		(1 << 5)
+#define  D_LCK		(1 << 4)
+#define  G_SMRAME	(1 << 3)
+#define  C_BASE_SEG	((0 << 2) | (1 << 1) | (0 << 0))
+
+#define TOM		0xa0
+#define TOUUD		0xa8	/* Top of Upper Usable DRAM */
+#define TSEG		0xb8	/* TSEG base */
+#define TOLUD		0xbc	/* Top of Low Used Memory */
+
+#define SKPAD		0xdc	/* Scratchpad Data */
+
+/* Device 0:1.0 PCI configuration space (PCI Express) */
+
+#define BCTRL1		0x3e	/* 16bit */
+
+
+/* Device 0:2.0 PCI configuration space (Graphics Device) */
+
+#define MSAC		0x62	/* Multi Size Aperture Control */
+#define SWSCI		0xe8	/* SWSCI  enable */
+#define ASLS		0xfc	/* OpRegion Base */
+
+/*
+ * MCHBAR
+ */
+
+#define MCHBAR8(x) *((volatile u8 *)(DEFAULT_MCHBAR + x))
+#define MCHBAR16(x) *((volatile u16 *)(DEFAULT_MCHBAR + x))
+#define MCHBAR32(x) *((volatile u32 *)(DEFAULT_MCHBAR + x))
+#define MCHBAR32_OR(x, or) MCHBAR32(x) = (MCHBAR32(x) | (or))
+
+#define SSKPD		0x5d14	/* 16bit (scratchpad) */
+#define BIOS_RESET_CPL	0x5da8	/* 8bit */
+
+/*
+ * EPBAR - Egress Port Root Complex Register Block
+ */
+
+#define EPBAR8(x) *((volatile u8 *)(DEFAULT_EPBAR + x))
+#define EPBAR16(x) *((volatile u16 *)(DEFAULT_EPBAR + x))
+#define EPBAR32(x) *((volatile u32 *)(DEFAULT_EPBAR + x))
+
+#define EPPVCCAP1	0x004	/* 32bit */
+#define EPPVCCAP2	0x008	/* 32bit */
+
+#define EPVC0RCAP	0x010	/* 32bit */
+#define EPVC0RCTL	0x014	/* 32bit */
+#define EPVC0RSTS	0x01a	/* 16bit */
+
+#define EPVC1RCAP	0x01c	/* 32bit */
+#define EPVC1RCTL	0x020	/* 32bit */
+#define EPVC1RSTS	0x026	/* 16bit */
+
+#define EPVC1MTS	0x028	/* 32bit */
+#define EPVC1IST	0x038	/* 64bit */
+
+#define EPESD		0x044	/* 32bit */
+
+#define EPLE1D		0x050	/* 32bit */
+#define EPLE1A		0x058	/* 64bit */
+#define EPLE2D		0x060	/* 32bit */
+#define EPLE2A		0x068	/* 64bit */
+
+#define PORTARB		0x100	/* 256bit */
+
+/*
+ * DMIBAR
+ */
+
+#define DMIBAR8(x) *((volatile u8 *)(DEFAULT_DMIBAR + x))
+#define DMIBAR16(x) *((volatile u16 *)(DEFAULT_DMIBAR + x))
+#define DMIBAR32(x) *((volatile u32 *)(DEFAULT_DMIBAR + x))
+
+#define DMIVCECH	0x000	/* 32bit */
+#define DMIPVCCAP1	0x004	/* 32bit */
+#define DMIPVCCAP2	0x008	/* 32bit */
+
+#define DMIPVCCCTL	0x00c	/* 16bit */
+
+#define DMIVC0RCAP	0x010	/* 32bit */
+#define DMIVC0RCTL0	0x014	/* 32bit */
+#define DMIVC0RSTS	0x01a	/* 16bit */
+
+#define DMIVC1RCAP	0x01c	/* 32bit */
+#define DMIVC1RCTL	0x020	/* 32bit */
+#define DMIVC1RSTS	0x026	/* 16bit */
+
+#define DMILE1D		0x050	/* 32bit */
+#define DMILE1A		0x058	/* 64bit */
+#define DMILE2D		0x060	/* 32bit */
+#define DMILE2A		0x068	/* 64bit */
+
+#define DMILCAP		0x084	/* 32bit */
+#define DMILCTL		0x088	/* 16bit */
+#define DMILSTS		0x08a	/* 16bit */
+
+#define DMICTL1		0x0f0	/* 32bit */
+#define DMICTL2		0x0fc	/* 32bit */
+
+#define DMICC		0x208	/* 32bit */
+
+#define DMIDRCCFG	0xeb4	/* 32bit */
+
+#ifndef __ASSEMBLER__
+static inline void barrier(void) { asm("" ::: "memory"); }
+
+struct ied_header {
+	char signature[10];
+	u32 size;
+	u8 reserved[34];
+} __attribute__ ((packed));
+
+#define PCI_DEVICE_ID_SB 0x0104
+#define PCI_DEVICE_ID_IB 0x0154
+
+#ifdef __SMM__
+void intel_northbridge_haswell_finalize_smm(void);
+#else /* !__SMM__ */
+int bridge_silicon_revision(void);
+void haswell_early_initialization(int chipset_type);
+void haswell_late_initialization(void);
+
+/* debugging functions */
+void print_pci_devices(void);
+void dump_pci_device(unsigned dev);
+void dump_pci_devices(void);
+void dump_spd_registers(void);
+void dump_mem(unsigned start, unsigned end);
+void report_platform_info(void);
+#endif /* !__SMM__ */
+
+
+#define MRC_DATA_ALIGN           0x1000
+#define MRC_DATA_SIGNATURE       (('M'<<0)|('R'<<8)|('C'<<16)|('D'<<24))
+
+struct mrc_data_container {
+	u32	mrc_signature;	// "MRCD"
+	u32	mrc_data_size;	// Actual total size of this structure
+	u32	mrc_checksum;	// IP style checksum
+	u32	reserved;	// For header alignment
+	u8	mrc_data[0];	// Variable size, platform/run time dependent.
+} __attribute__ ((packed));
+
+struct mrc_data_container *find_current_mrc_cache(void);
+#if !defined(__PRE_RAM__)
+void update_mrc_cache(void);
+
+#include "gma.h"
+int init_igd_opregion(igd_opregion_t *igd_opregion);
+#endif
+
+#endif
+#endif
+#endif
diff --git a/src/northbridge/intel/haswell/mrccache.c b/src/northbridge/intel/haswell/mrccache.c
new file mode 100644
index 0000000..032bae4
--- /dev/null
+++ b/src/northbridge/intel/haswell/mrccache.c
@@ -0,0 +1,245 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <console/console.h>
+#include <cbfs.h>
+#include <ip_checksum.h>
+#include <device/device.h>
+#include <cbmem.h>
+#include "pei_data.h"
+#include "haswell.h"
+#include <spi-generic.h>
+#include <spi_flash.h>
+#if CONFIG_CHROMEOS
+#include <vendorcode/google/chromeos/fmap.h>
+#endif
+
+/* convert a pointer to flash area into the offset inside the flash */
+static inline u32 to_flash_offset(void *p) {
+	return ((u32)p + CONFIG_ROM_SIZE);
+}
+
+static struct mrc_data_container *next_mrc_block(
+	struct mrc_data_container *mrc_cache)
+{
+	/* MRC data blocks are aligned within the region */
+	u32 mrc_size = sizeof(*mrc_cache) + mrc_cache->mrc_data_size;
+	if (mrc_size & (MRC_DATA_ALIGN - 1UL)) {
+		mrc_size &= ~(MRC_DATA_ALIGN - 1UL);
+		mrc_size += MRC_DATA_ALIGN;
+	}
+
+	u8 *region_ptr = (u8*)mrc_cache;
+	region_ptr += mrc_size;
+	return (struct mrc_data_container *)region_ptr;
+}
+
+static int is_mrc_cache(struct mrc_data_container *mrc_cache)
+{
+	return (!!mrc_cache) && (mrc_cache->mrc_signature == MRC_DATA_SIGNATURE);
+}
+
+/* Right now, the offsets for the MRC cache area are hard-coded in the
+ * northbridge Kconfig if CONFIG_CHROMEOS is not set. In order to make
+ * this more flexible, there are two of options:
+ *  - Have each mainboard Kconfig supply a hard-coded offset
+ *  - Use CBFS
+ */
+static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr)
+{
+	u32 region_size;
+#if CONFIG_CHROMEOS
+	region_size =  find_fmap_entry("RW_MRC_CACHE", (void **)mrc_region_ptr);
+#else
+	region_size = CONFIG_MRC_CACHE_SIZE;
+	*mrc_region_ptr = (struct mrc_data_container *)
+		(CONFIG_MRC_CACHE_BASE + CONFIG_MRC_CACHE_LOCATION);
+#endif
+
+	return region_size;
+}
+
+/*
+ * Find the largest index block in the MRC cache. Return NULL if non is
+ * found.
+ */
+static struct mrc_data_container *find_current_mrc_cache_local
+	(struct mrc_data_container *mrc_cache, u32 region_size)
+{
+	u32 region_end;
+	u32 entry_id = 0;
+	struct mrc_data_container *mrc_next = mrc_cache;
+
+	region_end = (u32) mrc_cache + region_size;
+
+	/* Search for the last filled entry in the region */
+	while (is_mrc_cache(mrc_next)) {
+		entry_id++;
+		mrc_cache = mrc_next;
+		mrc_next = next_mrc_block(mrc_next);
+		if ((u32)mrc_next >= region_end) {
+			/* Stay in the MRC data region */
+			break;
+		}
+	}
+
+	if (entry_id == 0) {
+		printk(BIOS_ERR, "%s: No valid MRC cache found.\n", __func__);
+		return NULL;
+	}
+
+	/* Verify checksum */
+	if (mrc_cache->mrc_checksum !=
+	    compute_ip_checksum(mrc_cache->mrc_data,
+				mrc_cache->mrc_data_size)) {
+		printk(BIOS_ERR, "%s: MRC cache checksum mismatch\n", __func__);
+		return NULL;
+	}
+
+	printk(BIOS_DEBUG, "%s: picked entry %u from cache block\n", __func__,
+	       entry_id - 1);
+
+	return mrc_cache;
+}
+
+/* SPI code needs malloc/free.
+ * Also unknown if writing flash from XIP-flash code is a good idea
+ */
+#if !defined(__PRE_RAM__)
+/* find the first empty block in the MRC cache area.
+ * If there's none, return NULL.
+ *
+ * @mrc_cache_base - base address of the MRC cache area
+ * @mrc_cache - current entry (for which we need to find next)
+ * @region_size - total size of the MRC cache area
+ */
+static struct mrc_data_container *find_next_mrc_cache
+		(struct mrc_data_container *mrc_cache_base,
+		 struct mrc_data_container *mrc_cache,
+		 u32 region_size)
+{
+	u32 region_end = (u32) mrc_cache_base + region_size;
+
+	mrc_cache = next_mrc_block(mrc_cache);
+	if ((u32)mrc_cache >= region_end) {
+		/* Crossed the boundary */
+		mrc_cache = NULL;
+		printk(BIOS_DEBUG, "%s: no available entries found\n",
+		       __func__);
+	} else {
+		printk(BIOS_DEBUG,
+		       "%s: picked next entry from cache block at %p\n",
+		       __func__, mrc_cache);
+	}
+
+	return mrc_cache;
+}
+
+void update_mrc_cache(void)
+{
+	printk(BIOS_DEBUG, "Updating MRC cache data.\n");
+	struct mrc_data_container *current = cbmem_find(CBMEM_ID_MRCDATA);
+	struct mrc_data_container *cache, *cache_base;
+	u32 cache_size;
+
+	if (!current) {
+		printk(BIOS_ERR, "No MRC cache in cbmem. Can't update flash.\n");
+		return;
+	}
+	if (current->mrc_data_size == -1) {
+		printk(BIOS_ERR, "MRC cache data in cbmem invalid.\n");
+		return;
+	}
+
+	cache_size = get_mrc_cache_region(&cache_base);
+	if (cache_base == NULL) {
+		printk(BIOS_ERR, "%s: could not find MRC cache area\n",
+		       __func__);
+		return;
+	}
+
+	/*
+	 * we need to:
+	 */
+	//  0. compare MRC data to last mrc-cache block (exit if same)
+	cache = find_current_mrc_cache_local(cache_base, cache_size);
+
+	if (cache && (cache->mrc_data_size == current->mrc_data_size) &&
+			(memcmp(cache, current, cache->mrc_data_size) == 0)) {
+		printk(BIOS_DEBUG,
+			"MRC data in flash is up to date. No update.\n");
+		return;
+	}
+
+	//  1. use spi_flash_probe() to find the flash, then
+	spi_init();
+	struct spi_flash *flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
+	if (!flash) {
+		printk(BIOS_DEBUG, "Could not find SPI device\n");
+		return;
+	}
+
+	//  2. look up the first unused block
+	if (cache)
+		cache = find_next_mrc_cache(cache_base, cache, cache_size);
+
+	/*
+	 * 3. if no such place exists, erase entire mrc-cache range & use
+	 * block 0. First time around the erase is not needed, but this is a
+	 * small overhead for simpler code.
+	 */
+	if (!cache) {
+		printk(BIOS_DEBUG,
+		       "Need to erase the MRC cache region of %d bytes at %p\n",
+		       cache_size, cache_base);
+
+		flash->erase(flash, to_flash_offset(cache_base), cache_size);
+
+		/* we will start at the beginning again */
+		cache = cache_base;
+	}
+	//  4. write mrc data with flash->write()
+	printk(BIOS_DEBUG, "Finally: write MRC cache update to flash at %p\n",
+	       cache);
+	flash->write(flash, to_flash_offset(cache),
+		     current->mrc_data_size + sizeof(*current), current);
+}
+#endif
+
+struct mrc_data_container *find_current_mrc_cache(void)
+{
+	struct mrc_data_container *cache_base;
+	u32 cache_size;
+
+	cache_size = get_mrc_cache_region(&cache_base);
+	if (cache_base == NULL) {
+		printk(BIOS_ERR, "%s: could not find MRC cache area\n",
+		       __func__);
+		return NULL;
+	}
+
+	/*
+	 * we need to:
+	 */
+	//  0. compare MRC data to last mrc-cache block (exit if same)
+	return find_current_mrc_cache_local(cache_base, cache_size);
+}
+
diff --git a/src/northbridge/intel/haswell/northbridge.c b/src/northbridge/intel/haswell/northbridge.c
new file mode 100644
index 0000000..1c6a8fc
--- /dev/null
+++ b/src/northbridge/intel/haswell/northbridge.c
@@ -0,0 +1,512 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/acpi.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <delay.h>
+#include <cpu/intel/haswell/haswell.h>
+#include <cpu/x86/msr.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/hypertransport.h>
+#include <stdlib.h>
+#include <string.h>
+#include <cpu/cpu.h>
+#include <boot/tables.h>
+#include <cbmem.h>
+#include "chip.h"
+#include "haswell.h"
+
+static int bridge_revision_id = -1;
+
+int bridge_silicon_revision(void)
+{
+	if (bridge_revision_id < 0) {
+		uint8_t stepping = cpuid_eax(1) & 0xf;
+		uint8_t bridge_id = pci_read_config16(
+			dev_find_slot(0, PCI_DEVFN(0, 0)),
+			PCI_DEVICE_ID) & 0xf0;
+		bridge_revision_id = bridge_id | stepping;
+	}
+	return bridge_revision_id;
+}
+
+/* Reserve everything between A segment and 1MB:
+ *
+ * 0xa0000 - 0xbffff: legacy VGA
+ * 0xc0000 - 0xcffff: VGA OPROM (needed by kernel)
+ * 0xe0000 - 0xfffff: SeaBIOS, if used, otherwise DMI
+ */
+static const int legacy_hole_base_k = 0xa0000 / 1024;
+static const int legacy_hole_size_k = 384;
+
+void cbmem_post_handling(void)
+{
+	update_mrc_cache();
+}
+
+static int get_pcie_bar(u32 *base, u32 *len)
+{
+	device_t dev;
+	u32 pciexbar_reg;
+
+	*base = 0;
+	*len = 0;
+
+	dev = dev_find_slot(0, PCI_DEVFN(0, 0));
+	if (!dev)
+		return 0;
+
+	pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
+
+	if (!(pciexbar_reg & (1 << 0)))
+		return 0;
+
+	switch ((pciexbar_reg >> 1) & 3) {
+	case 0: // 256MB
+		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
+		*len = 256 * 1024 * 1024;
+		return 1;
+	case 1: // 128M
+		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
+		*len = 128 * 1024 * 1024;
+		return 1;
+	case 2: // 64M
+		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
+		*len = 64 * 1024 * 1024;
+		return 1;
+	}
+
+	return 0;
+}
+
+static void add_fixed_resources(struct device *dev, int index)
+{
+	struct resource *resource;
+	u32 pcie_config_base, pcie_config_size;
+
+	printk(BIOS_DEBUG, "Adding UMA memory area base=0x%llx "
+	       "size=0x%llx\n", uma_memory_base, uma_memory_size);
+	resource = new_resource(dev, index);
+	resource->base = (resource_t) uma_memory_base;
+	resource->size = (resource_t) uma_memory_size;
+	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
+	    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+
+	/* Clear these values here so they don't get used by MTRR code */
+	uma_memory_base = 0;
+	uma_memory_size = 0;
+
+	if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
+		printk(BIOS_DEBUG, "Adding PCIe config bar base=0x%08x "
+		       "size=0x%x\n", pcie_config_base, pcie_config_size);
+		resource = new_resource(dev, index+1);
+		resource->base = (resource_t) pcie_config_base;
+		resource->size = (resource_t) pcie_config_size;
+		resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
+		    IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+	}
+
+	mmio_resource(dev, index++, legacy_hole_base_k, legacy_hole_size_k);
+
+#if CONFIG_CHROMEOS_RAMOOPS
+	mmio_resource(dev, index++, CONFIG_CHROMEOS_RAMOOPS_RAM_START >> 10,
+			CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE >> 10);
+#endif
+
+	/* Required for SandyBridge sighting 3715511 */
+	bad_ram_resource(dev, index++, 0x20000000 >> 10, 0x00200000 >> 10);
+	bad_ram_resource(dev, index++, 0x40000000 >> 10, 0x00200000 >> 10);
+}
+
+static void pci_domain_set_resources(device_t dev)
+{
+	uint64_t tom, me_base, touud;
+	uint32_t tseg_base, uma_size, tolud;
+	uint16_t ggc;
+	unsigned long long tomk;
+
+	/* Total Memory 2GB example:
+	 *
+	 *  00000000  0000MB-1992MB  1992MB  RAM     (writeback)
+	 *  7c800000  1992MB-2000MB     8MB  TSEG    (SMRR)
+	 *  7d000000  2000MB-2002MB     2MB  GFX GTT (uncached)
+	 *  7d200000  2002MB-2034MB    32MB  GFX UMA (uncached)
+	 *  7f200000   2034MB TOLUD
+	 *  7f800000   2040MB MEBASE
+	 *  7f800000  2040MB-2048MB     8MB  ME UMA  (uncached)
+	 *  80000000   2048MB TOM
+	 * 100000000  4096MB-4102MB     6MB  RAM     (writeback)
+	 *
+	 * Total Memory 4GB example:
+	 *
+	 *  00000000  0000MB-2768MB  2768MB  RAM     (writeback)
+	 *  ad000000  2768MB-2776MB     8MB  TSEG    (SMRR)
+	 *  ad800000  2776MB-2778MB     2MB  GFX GTT (uncached)
+	 *  ada00000  2778MB-2810MB    32MB  GFX UMA (uncached)
+	 *  afa00000   2810MB TOLUD
+	 *  ff800000   4088MB MEBASE
+	 *  ff800000  4088MB-4096MB     8MB  ME UMA  (uncached)
+	 * 100000000   4096MB TOM
+	 * 100000000  4096MB-5374MB  1278MB  RAM     (writeback)
+	 * 14fe00000   5368MB TOUUD
+	 */
+
+	/* Top of Upper Usable DRAM, including remap */
+	touud = pci_read_config32(dev, TOUUD+4);
+	touud <<= 32;
+	touud |= pci_read_config32(dev, TOUUD);
+
+	/* Top of Lower Usable DRAM */
+	tolud = pci_read_config32(dev, TOLUD);
+
+	/* Top of Memory - does not account for any UMA */
+	tom = pci_read_config32(dev, 0xa4);
+	tom <<= 32;
+	tom |= pci_read_config32(dev, 0xa0);
+
+	printk(BIOS_DEBUG, "TOUUD 0x%llx TOLUD 0x%08x TOM 0x%llx\n",
+	       touud, tolud, tom);
+
+	/* ME UMA needs excluding if total memory <4GB */
+	me_base = pci_read_config32(dev, 0x74);
+	me_base <<= 32;
+	me_base |= pci_read_config32(dev, 0x70);
+
+	printk(BIOS_DEBUG, "MEBASE 0x%llx\n", me_base);
+
+	tomk = tolud >> 10;
+	if (me_base == tolud) {
+		/* ME is from MEBASE-TOM */
+		uma_size = (tom - me_base) >> 10;
+		/* Increment TOLUD to account for ME as RAM */
+		tolud += uma_size << 10;
+		/* UMA starts at old TOLUD */
+		uma_memory_base = tomk * 1024ULL;
+		uma_memory_size = uma_size * 1024ULL;
+		printk(BIOS_DEBUG, "ME UMA base 0x%llx size %uM\n",
+		       me_base, uma_size >> 10);
+	}
+
+	/* Graphics memory comes next */
+	ggc = pci_read_config16(dev, GGC);
+	if (!(ggc & 2)) {
+		printk(BIOS_DEBUG, "IGD decoded, subtracting ");
+
+		/* Graphics memory */
+		uma_size = ((ggc >> 3) & 0x1f) * 32 * 1024ULL;
+		printk(BIOS_DEBUG, "%uM UMA", uma_size >> 10);
+		tomk -= uma_size;
+		uma_memory_base = tomk * 1024ULL;
+		uma_memory_size += uma_size * 1024ULL;
+
+		/* GTT Graphics Stolen Memory Size (GGMS) */
+		uma_size = ((ggc >> 8) & 0x3) * 1024ULL;
+		tomk -= uma_size;
+		uma_memory_base = tomk * 1024ULL;
+		uma_memory_size += uma_size * 1024ULL;
+		printk(BIOS_DEBUG, " and %uM GTT\n", uma_size >> 10);
+	}
+
+	/* Calculate TSEG size from its base which must be below GTT */
+	tseg_base = pci_read_config32(dev, 0xb8);
+	uma_size = (uma_memory_base - tseg_base) >> 10;
+	tomk -= uma_size;
+	uma_memory_base = tomk * 1024ULL;
+	uma_memory_size += uma_size * 1024ULL;
+	printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n",
+	       tseg_base, uma_size >> 10);
+
+	printk(BIOS_INFO, "Available memory below 4GB: %lluM\n", tomk >> 10);
+
+	/* Report the memory regions */
+	ram_resource(dev, 3, 0, legacy_hole_base_k);
+	ram_resource(dev, 4, legacy_hole_base_k + legacy_hole_size_k,
+	     (tomk - (legacy_hole_base_k + legacy_hole_size_k)));
+
+	/*
+	 * If >= 4GB installed then memory from TOLUD to 4GB
+	 * is remapped above TOM, TOUUD will account for both
+	 */
+	touud >>= 10; /* Convert to KB */
+	if (touud > 4096 * 1024) {
+		ram_resource(dev, 5, 4096 * 1024, touud - (4096 * 1024));
+		printk(BIOS_INFO, "Available memory above 4GB: %lluM\n",
+		       (touud >> 10) - 4096);
+	}
+
+	add_fixed_resources(dev, 6);
+
+	assign_resources(dev->link_list);
+
+	/* Leave some space for ACPI, PIRQ and MP tables */
+	high_tables_base = (tomk * 1024) - HIGH_MEMORY_SIZE;
+	high_tables_size = HIGH_MEMORY_SIZE;
+}
+
+	/* TODO We could determine how many PCIe busses we need in
+	 * the bar. For now that number is hardcoded to a max of 64.
+	 * See e7525/northbridge.c for an example.
+	 */
+static struct device_operations pci_domain_ops = {
+	.read_resources   = pci_domain_read_resources,
+	.set_resources    = pci_domain_set_resources,
+	.enable_resources = NULL,
+	.init             = NULL,
+	.scan_bus         = pci_domain_scan_bus,
+#if CONFIG_MMCONF_SUPPORT_DEFAULT
+	.ops_pci_bus	  = &pci_ops_mmconf,
+#else
+	.ops_pci_bus	  = &pci_cf8_conf1,
+#endif
+};
+
+static void mc_read_resources(device_t dev)
+{
+	struct resource *resource;
+
+	pci_dev_read_resources(dev);
+
+	/* So, this is one of the big mysteries in the coreboot resource
+	 * allocator. This resource should make sure that the address space
+	 * of the PCIe memory mapped config space bar. But it does not.
+	 */
+
+	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
+	resource = new_resource(dev, 0xcf);
+	resource->base = DEFAULT_PCIEXBAR;
+	resource->size = 64 * 1024 * 1024;	/* 64MB hard coded PCIe config space */
+	resource->flags =
+	    IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
+	    IORESOURCE_ASSIGNED;
+	printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
+		     (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+}
+
+static void mc_set_resources(device_t dev)
+{
+	struct resource *resource;
+
+	/* Report the PCIe BAR */
+	resource = find_resource(dev, 0xcf);
+	if (resource) {
+		report_resource_stored(dev, resource, "<mmconfig>");
+	}
+
+	/* And call the normal set_resources */
+	pci_dev_set_resources(dev);
+}
+
+static void intel_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	if (!vendor || !device) {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static void northbridge_dmi_init(struct device *dev)
+{
+	u32 reg32;
+
+	/* Clear error status bits */
+	DMIBAR32(0x1c4) = 0xffffffff;
+	DMIBAR32(0x1d0) = 0xffffffff;
+
+	/* Steps prior to DMI ASPM */
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+		reg32 = DMIBAR32(0x250);
+		reg32 &= ~((1 << 22)|(1 << 20));
+		reg32 |= (1 << 21);
+		DMIBAR32(0x250) = reg32;
+	}
+
+	reg32 = DMIBAR32(0x238);
+	reg32 |= (1 << 29);
+	DMIBAR32(0x238) = reg32;
+
+	if (bridge_silicon_revision() >= SNB_STEP_D0) {
+		reg32 = DMIBAR32(0x1f8);
+		reg32 |= (1 << 16);
+		DMIBAR32(0x1f8) = reg32;
+	} else if (bridge_silicon_revision() >= SNB_STEP_D1) {
+		reg32 = DMIBAR32(0x1f8);
+		reg32 &= ~(1 << 26);
+		reg32 |= (1 << 16);
+		DMIBAR32(0x1f8) = reg32;
+
+		reg32 = DMIBAR32(0x1fc);
+		reg32 |= (1 << 12) | (1 << 23);
+		DMIBAR32(0x1fc) = reg32;
+	}
+
+	/* Enable ASPM on SNB link, should happen before PCH link */
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+		reg32 = DMIBAR32(0xd04);
+		reg32 |= (1 << 4);
+		DMIBAR32(0xd04) = reg32;
+	}
+
+	reg32 = DMIBAR32(0x88);
+	reg32 |= (1 << 1) | (1 << 0);
+	DMIBAR32(0x88) = reg32;
+}
+
+static void northbridge_init(struct device *dev)
+{
+	u8 bios_reset_cpl;
+	u32 bridge_type;
+
+	northbridge_dmi_init(dev);
+
+	bridge_type = MCHBAR32(0x5f10);
+	bridge_type &= ~0xff;
+
+	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
+		/* Enable Power Aware Interrupt Routing */
+		u8 pair = MCHBAR8(0x5418);
+		pair &= ~0xf;	/* Clear 3:0 */
+		pair |= 0x4;	/* Fixed Priority */
+		MCHBAR8(0x5418) = pair;
+
+		/* 30h for IvyBridge */
+		bridge_type |= 0x30;
+	} else {
+		/* 20h for Sandybridge */
+		bridge_type |= 0x20;
+	}
+	MCHBAR32(0x5f10) = bridge_type;
+
+	/*
+	 * Set bit 0 of BIOS_RESET_CPL to indicate to the CPU
+	 * that BIOS has initialized memory and power management
+	 */
+	bios_reset_cpl = MCHBAR8(BIOS_RESET_CPL);
+	bios_reset_cpl |= 1;
+	MCHBAR8(BIOS_RESET_CPL) = bios_reset_cpl;
+	printk(BIOS_DEBUG, "Set BIOS_RESET_CPL\n");
+
+	/* Configure turbo power limits 1ms after reset complete bit */
+	mdelay(1);
+	set_power_limits(28);
+
+	/*
+	 * CPUs with configurable TDP also need power limits set
+	 * in MCHBAR.  Use same values from MSR_PKG_POWER_LIMIT.
+	 */
+	if (cpu_config_tdp_levels()) {
+		msr_t msr = rdmsr(MSR_PKG_POWER_LIMIT);
+		MCHBAR32(0x59A0) = msr.lo;
+		MCHBAR32(0x59A4) = msr.hi;
+	}
+
+	/* Set here before graphics PM init */
+	MCHBAR32(0x5500) = 0x00100001;
+}
+
+static void northbridge_enable(device_t dev)
+{
+#if CONFIG_HAVE_ACPI_RESUME
+	switch (pci_read_config32(dev, SKPAD)) {
+	case 0xcafebabe:
+		printk(BIOS_DEBUG, "Normal boot.\n");
+		acpi_slp_type=0;
+		break;
+	case 0xcafed00d:
+		printk(BIOS_DEBUG, "S3 Resume.\n");
+		acpi_slp_type=3;
+		break;
+	default:
+		printk(BIOS_DEBUG, "Unknown boot method, assuming normal.\n");
+		acpi_slp_type=0;
+		break;
+	}
+#endif
+}
+
+static struct pci_operations intel_pci_ops = {
+	.set_subsystem    = intel_set_subsystem,
+};
+
+static struct device_operations mc_ops = {
+	.read_resources   = mc_read_resources,
+	.set_resources    = mc_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = northbridge_init,
+	.enable           = northbridge_enable,
+	.scan_bus         = 0,
+	.ops_pci          = &intel_pci_ops,
+};
+
+static const struct pci_driver mc_driver_0100 __pci_driver = {
+	.ops    = &mc_ops,
+	.vendor = PCI_VENDOR_ID_INTEL,
+	.device = 0x0100,
+};
+
+static const struct pci_driver mc_driver __pci_driver = {
+	.ops    = &mc_ops,
+	.vendor = PCI_VENDOR_ID_INTEL,
+	.device = 0x0104, /* Sandy bridge */
+};
+
+static const struct pci_driver mc_driver_1 __pci_driver = {
+	.ops    = &mc_ops,
+	.vendor = PCI_VENDOR_ID_INTEL,
+	.device = 0x0154, /* Ivy bridge */
+};
+
+static void cpu_bus_init(device_t dev)
+{
+	initialize_cpus(dev->link_list);
+}
+
+static void cpu_bus_noop(device_t dev)
+{
+}
+
+static struct device_operations cpu_bus_ops = {
+	.read_resources   = cpu_bus_noop,
+	.set_resources    = cpu_bus_noop,
+	.enable_resources = cpu_bus_noop,
+	.init             = cpu_bus_init,
+	.scan_bus         = 0,
+};
+
+static void enable_dev(device_t dev)
+{
+	/* Set the operations if it is a special bus type */
+	if (dev->path.type == DEVICE_PATH_DOMAIN) {
+		dev->ops = &pci_domain_ops;
+	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
+		dev->ops = &cpu_bus_ops;
+	}
+}
+
+struct chip_operations northbridge_intel_haswell_ops = {
+	CHIP_NAME("Intel i7 (Haswell) integrated Northbridge")
+	.enable_dev = enable_dev,
+};
diff --git a/src/northbridge/intel/haswell/pcie_config.c b/src/northbridge/intel/haswell/pcie_config.c
new file mode 100644
index 0000000..d96854e
--- /dev/null
+++ b/src/northbridge/intel/haswell/pcie_config.c
@@ -0,0 +1,89 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "haswell.h"
+
+static inline __attribute__ ((always_inline))
+u8 pcie_read_config8(device_t dev, unsigned int where)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	return read8(addr);
+}
+
+static inline __attribute__ ((always_inline))
+u16 pcie_read_config16(device_t dev, unsigned int where)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	return read16(addr);
+}
+
+static inline __attribute__ ((always_inline))
+u32 pcie_read_config32(device_t dev, unsigned int where)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	return read32(addr);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_write_config8(device_t dev, unsigned int where, u8 value)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	write8(addr, value);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_write_config16(device_t dev, unsigned int where, u16 value)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	write16(addr, value);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_write_config32(device_t dev, unsigned int where, u32 value)
+{
+	unsigned long addr;
+	addr = DEFAULT_PCIEXBAR | dev | where;
+	write32(addr, value);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_or_config8(device_t dev, unsigned int where, u8 ormask)
+{
+	u8 value = pcie_read_config8(dev, where);
+	pcie_write_config8(dev, where, value | ormask);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_or_config16(device_t dev, unsigned int where, u16 ormask)
+{
+	u16 value = pcie_read_config16(dev, where);
+	pcie_write_config16(dev, where, value | ormask);
+}
+
+static inline __attribute__ ((always_inline))
+void pcie_or_config32(device_t dev, unsigned int where, u32 ormask)
+{
+	u32 value = pcie_read_config32(dev, where);
+	pcie_write_config32(dev, where, value | ormask);
+}
diff --git a/src/northbridge/intel/haswell/pei_data.h b/src/northbridge/intel/haswell/pei_data.h
new file mode 100644
index 0000000..8c907c1
--- /dev/null
+++ b/src/northbridge/intel/haswell/pei_data.h
@@ -0,0 +1,115 @@
+/*
+ * coreboot UEFI PEI wrapper
+ *
+ * Copyright (c) 2011, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Google Inc. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PEI_DATA_H
+#define PEI_DATA_H
+
+typedef void (*tx_byte_func)(unsigned char byte);
+#define PEI_VERSION 4
+struct pei_data
+{
+	uint32_t pei_version;
+	uint32_t mchbar;
+	uint32_t dmibar;
+	uint32_t epbar;
+	uint32_t pciexbar;
+	uint16_t smbusbar;
+	uint32_t wdbbar;
+	uint32_t wdbsize;
+	uint32_t hpet_address;
+	uint32_t rcba;
+	uint32_t pmbase;
+	uint32_t gpiobase;
+	uint32_t thermalbase;
+	uint32_t system_type; // 0 Mobile, 1 Desktop/Server
+	uint32_t tseg_size;
+	uint8_t spd_addresses[4];
+	uint8_t ts_addresses[4];
+	int boot_mode;
+	int ec_present;
+	// 0 = leave channel enabled
+	// 1 = disable dimm 0 on channel
+	// 2 = disable dimm 1 on channel
+	// 3 = disable dimm 0+1 on channel
+	int dimm_channel0_disabled;
+	int dimm_channel1_disabled;
+	/* Seed values saved in CMOS */
+	uint32_t scrambler_seed;
+	uint32_t scrambler_seed_s3;
+	/* Data read from flash and passed into MRC */
+	unsigned char *mrc_input;
+	unsigned int mrc_input_len;
+	/* Data from MRC that should be saved to flash */
+	unsigned char *mrc_output;
+	unsigned int mrc_output_len;
+	/*
+	 * Max frequency DDR3 could be ran at. Could be one of four values:
+	 * 800, 1067, 1333, 1600
+	 */
+	uint32_t max_ddr3_freq;
+	/*
+	 * USB Port Configuration:
+	 *  [0] = enable
+	 *  [1] = overcurrent pin
+	 *  [2] = length
+	 *
+	 * Ports 0-7 can be mapped to OC0-OC3
+	 * Ports 8-13 can be mapped to OC4-OC7
+	 *
+	 * Port Length
+	 *  MOBILE:
+	 *   < 0x050 = Setting 1 (back panel, 1-5in, lowest tx amplitude)
+	 *   < 0x140 = Setting 2 (back panel, 5-14in, highest tx amplitude)
+	 *  DESKTOP:
+	 *   < 0x080 = Setting 1 (front/back panel, <8in, lowest tx amplitude)
+	 *   < 0x130 = Setting 2 (back panel, 8-13in, higher tx amplitude)
+	 *   < 0x150 = Setting 3 (back panel, 13-15in, higest tx amplitude)
+	 */
+	uint16_t usb_port_config[16][3];
+	/* SPD data array for onboard RAM. Specify address 0xf0,
+	 * 0xf1, 0xf2, 0xf3 to index one of the 4 slots in
+	 * spd_address for a given "DIMM".
+	 */
+	uint8_t spd_data[4][256];
+	tx_byte_func tx_byte;
+	int ddr3lv_support;
+	/* pcie_init needs to be set to 1 to have the system agent initialize
+	 * PCIe. Note: This should only be required if your system has Gen3 devices
+	 * and it will increase your boot time by at least 100ms.
+	 */
+	int pcie_init;
+	/* N mode functionality. Leave this setting at 0.
+	 * 0 Auto
+	 * 1 1N
+	 * 2 2N
+	 */
+	int nmode;
+} __attribute__((packed));
+
+#endif
diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c
new file mode 100644
index 0000000..b456825
--- /dev/null
+++ b/src/northbridge/intel/haswell/raminit.c
@@ -0,0 +1,307 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <string.h>
+#include <arch/hlt.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <cbmem.h>
+#include <arch/cbfs.h>
+#include <cbfs.h>
+#include <ip_checksum.h>
+#include <pc80/mc146818rtc.h>
+#include <device/pci_def.h>
+#include "raminit.h"
+#include "pei_data.h"
+#include "haswell.h"
+
+/* Management Engine is in the southbridge */
+#include "southbridge/intel/lynxpoint/me.h"
+#if CONFIG_CHROMEOS
+#include <vendorcode/google/chromeos/chromeos.h>
+#else
+#define recovery_mode_enabled(x) 0
+#endif
+
+/*
+ * MRC scrambler seed offsets should be reserved in
+ * mainboard cmos.layout and not covered by checksum.
+ */
+#if CONFIG_USE_OPTION_TABLE
+#include "option_table.h"
+#define CMOS_OFFSET_MRC_SEED     (CMOS_VSTART_mrc_scrambler_seed >> 3)
+#define CMOS_OFFSET_MRC_SEED_S3  (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3)
+#define CMOS_OFFSET_MRC_SEED_CHK (CMOS_VSTART_mrc_scrambler_seed_chk >> 3)
+#else
+#define CMOS_OFFSET_MRC_SEED     152
+#define CMOS_OFFSET_MRC_SEED_S3  156
+#define CMOS_OFFSET_MRC_SEED_CHK 160
+#endif
+
+static void save_mrc_data(struct pei_data *pei_data)
+{
+	u16 c1, c2, checksum;
+
+#if CONFIG_EARLY_CBMEM_INIT
+	struct mrc_data_container *mrcdata;
+	int output_len = ALIGN(pei_data->mrc_output_len, 16);
+
+	/* Save the MRC S3 restore data to cbmem */
+	cbmem_initialize();
+	mrcdata = cbmem_add
+		(CBMEM_ID_MRCDATA,
+		 output_len + sizeof(struct mrc_data_container));
+
+	printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
+	       pei_data->mrc_output, mrcdata, output_len);
+
+	mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
+	mrcdata->mrc_data_size = output_len;
+	mrcdata->reserved = 0;
+	memcpy(mrcdata->mrc_data, pei_data->mrc_output,
+	       pei_data->mrc_output_len);
+
+	/* Zero the unused space in aligned buffer. */
+	if (output_len > pei_data->mrc_output_len)
+		memset(mrcdata->mrc_data+pei_data->mrc_output_len, 0,
+		       output_len - pei_data->mrc_output_len);
+
+	mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
+						    mrcdata->mrc_data_size);
+#endif
+
+	/* Save the MRC seed values to CMOS */
+	cmos_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);
+	printk(BIOS_DEBUG, "Save scrambler seed    0x%08x to CMOS 0x%02x\n",
+	       pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
+
+	cmos_write32(CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3);
+	printk(BIOS_DEBUG, "Save s3 scrambler seed 0x%08x to CMOS 0x%02x\n",
+	       pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
+
+	/* Save a simple checksum of the seed values */
+	c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
+				 sizeof(u32));
+	c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
+				 sizeof(u32));
+	checksum = add_ip_checksums(sizeof(u32), c1, c2);
+
+	cmos_write(checksum & 0xff, CMOS_OFFSET_MRC_SEED_CHK);
+	cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK+1);
+}
+
+static void prepare_mrc_cache(struct pei_data *pei_data)
+{
+	struct mrc_data_container *mrc_cache;
+	u16 c1, c2, checksum, seed_checksum;
+
+	// preset just in case there is an error
+	pei_data->mrc_input = NULL;
+	pei_data->mrc_input_len = 0;
+
+	/* Read scrambler seeds from CMOS */
+	pei_data->scrambler_seed = cmos_read32(CMOS_OFFSET_MRC_SEED);
+	printk(BIOS_DEBUG, "Read scrambler seed    0x%08x from CMOS 0x%02x\n",
+	       pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
+
+	pei_data->scrambler_seed_s3 = cmos_read32(CMOS_OFFSET_MRC_SEED_S3);
+	printk(BIOS_DEBUG, "Read S3 scrambler seed 0x%08x from CMOS 0x%02x\n",
+	       pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
+
+	/* Compute seed checksum and compare */
+	c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed,
+				 sizeof(u32));
+	c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3,
+				 sizeof(u32));
+	checksum = add_ip_checksums(sizeof(u32), c1, c2);
+
+	seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK);
+	seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK+1) << 8;
+
+	if (checksum != seed_checksum) {
+		printk(BIOS_ERR, "%s: invalid seed checksum\n", __func__);
+		pei_data->scrambler_seed = 0;
+		pei_data->scrambler_seed_s3 = 0;
+		return;
+	}
+
+	if ((mrc_cache = find_current_mrc_cache()) == NULL) {
+		/* error message printed in find_current_mrc_cache */
+		return;
+	}
+
+	pei_data->mrc_input = mrc_cache->mrc_data;
+	pei_data->mrc_input_len = mrc_cache->mrc_data_size;
+
+	printk(BIOS_DEBUG, "%s: at %p, size %x checksum %04x\n",
+	       __func__, pei_data->mrc_input,
+	       pei_data->mrc_input_len, mrc_cache->mrc_checksum);
+}
+
+static const char* ecc_decoder[] = {
+	"inactive",
+	"active on IO",
+	"disabled on IO",
+	"active"
+};
+
+/*
+ * Dump in the log memory controller configuration as read from the memory
+ * controller registers.
+ */
+static void report_memory_config(void)
+{
+	u32 addr_decoder_common, addr_decode_ch[2];
+	int i;
+
+	addr_decoder_common = MCHBAR32(0x5000);
+	addr_decode_ch[0] = MCHBAR32(0x5004);
+	addr_decode_ch[1] = MCHBAR32(0x5008);
+
+	printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n",
+	       (MCHBAR32(0x5e04) * 13333 * 2 + 50)/100);
+	printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n",
+	       addr_decoder_common & 3,
+	       (addr_decoder_common >> 2) & 3,
+	       (addr_decoder_common >> 4) & 3);
+
+	for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) {
+		u32 ch_conf = addr_decode_ch[i];
+		printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n",
+		       i, ch_conf);
+		printk(BIOS_DEBUG, "   ECC %s\n",
+		       ecc_decoder[(ch_conf >> 24) & 3]);
+		printk(BIOS_DEBUG, "   enhanced interleave mode %s\n",
+		       ((ch_conf >> 22) & 1) ? "on" : "off");
+		printk(BIOS_DEBUG, "   rank interleave %s\n",
+		       ((ch_conf >> 21) & 1) ? "on" : "off");
+		printk(BIOS_DEBUG, "   DIMMA %d MB width x%d %s rank%s\n",
+		       ((ch_conf >> 0) & 0xff) * 256,
+		       ((ch_conf >> 19) & 1) ? 16 : 8,
+		       ((ch_conf >> 17) & 1) ? "dual" : "single",
+		       ((ch_conf >> 16) & 1) ? "" : ", selected");
+		printk(BIOS_DEBUG, "   DIMMB %d MB width x%d %s rank%s\n",
+		       ((ch_conf >> 8) & 0xff) * 256,
+		       ((ch_conf >> 20) & 1) ? 16 : 8,
+		       ((ch_conf >> 18) & 1) ? "dual" : "single",
+		       ((ch_conf >> 16) & 1) ? ", selected" : "");
+	}
+}
+
+/**
+ * Find PEI executable in coreboot filesystem and execute it.
+ *
+ * @param pei_data: configuration data for UEFI PEI reference code
+ */
+void sdram_initialize(struct pei_data *pei_data)
+{
+	struct sys_info sysinfo;
+	unsigned long entry;
+
+	report_platform_info();
+
+	/* Wait for ME to be ready */
+	intel_early_me_init();
+	intel_early_me_uma_size();
+
+	printk(BIOS_DEBUG, "Starting UEFI PEI System Agent\n");
+
+	memset(&sysinfo, 0, sizeof(sysinfo));
+
+	sysinfo.boot_path = pei_data->boot_mode;
+
+	/*
+	 * Do not pass MRC data in for recovery mode boot,
+	 * Always pass it in for S3 resume.
+	 */
+	if (!recovery_mode_enabled() || pei_data->boot_mode == 2)
+		prepare_mrc_cache(pei_data);
+
+	/* If MRC data is not found we cannot continue S3 resume. */
+	if (pei_data->boot_mode == 2 && !pei_data->mrc_input) {
+		printk(BIOS_DEBUG, "Giving up in sdram_initialize: No MRC data\n");
+		outb(0x6, 0xcf9);
+		while(1) {
+			hlt();
+		}
+	}
+
+	/* Pass console handler in pei_data */
+	pei_data->tx_byte = console_tx_byte;
+
+	/* Locate and call UEFI System Agent binary. */
+	entry = (unsigned long)cbfs_get_file_content(
+			CBFS_DEFAULT_MEDIA, "mrc.bin", 0xab);
+	if (entry) {
+		int rv;
+		asm volatile (
+			      "call *%%ecx\n\t"
+			      :"=a" (rv) : "c" (entry), "a" (pei_data));
+		if (rv) {
+			switch (rv) {
+			case -1:
+				printk(BIOS_ERR, "PEI version mismatch.\n");
+				break;
+			case -2:
+				printk(BIOS_ERR, "Invalid memory frequency.\n");
+				break;
+			default:
+				printk(BIOS_ERR, "MRC returned %x.\n", rv);
+			}
+			die("Nonzero MRC return value.\n");
+		}
+	} else {
+		die("UEFI PEI System Agent not found.\n");
+	}
+
+	/* For reference print the System Agent version
+	 * after executing the UEFI PEI stage.
+	 */
+	u32 version = MCHBAR32(0x5034);
+	printk(BIOS_DEBUG, "System Agent Version %d.%d.%d Build %d\n",
+		version >> 24 , (version >> 16) & 0xff,
+		(version >> 8) & 0xff, version & 0xff);
+
+	/* Send ME init done for SandyBridge here.  This is done
+	 * inside the SystemAgent binary on IvyBridge. */
+	if (BASE_REV_SNB ==
+	    (pci_read_config16(PCI_CPU_DEVICE, PCI_DEVICE_ID) & BASE_REV_MASK))
+		intel_early_me_init_done(ME_INIT_STATUS_SUCCESS);
+	else
+		intel_early_me_status();
+
+	report_memory_config();
+
+	/* S3 resume: don't save scrambler seed or MRC data */
+	if (pei_data->boot_mode != 2)
+		save_mrc_data(pei_data);
+}
+
+struct cbmem_entry *get_cbmem_toc(void)
+{
+	return (struct cbmem_entry *)(get_top_of_ram() - HIGH_MEMORY_SIZE);
+}
+
+unsigned long get_top_of_ram(void)
+{
+	/* Base of TSEG is top of usable DRAM */
+	u32 tom = pci_read_config32(PCI_DEV(0,0,0), TSEG);
+	return (unsigned long) tom;
+}
diff --git a/src/northbridge/intel/haswell/raminit.h b/src/northbridge/intel/haswell/raminit.h
new file mode 100644
index 0000000..958e983
--- /dev/null
+++ b/src/northbridge/intel/haswell/raminit.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef RAMINIT_H
+#define RAMINIT_H
+
+#include "pei_data.h"
+
+struct sys_info {
+	u8 boot_path;
+#define BOOT_PATH_NORMAL	0
+#define BOOT_PATH_RESET		1
+#define BOOT_PATH_RESUME	2
+} __attribute__ ((packed));
+
+void sdram_initialize(struct pei_data *pei_data);
+unsigned long get_top_of_ram(void);
+int fixup_haswell_errata(void);
+
+#endif				/* RAMINIT_H */
diff --git a/src/northbridge/intel/haswell/report_platform.c b/src/northbridge/intel/haswell/report_platform.c
new file mode 100644
index 0000000..c65bbe5
--- /dev/null
+++ b/src/northbridge/intel/haswell/report_platform.c
@@ -0,0 +1,112 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/cpu.h>
+#include <string.h>
+#include "southbridge/intel/lynxpoint/pch.h"
+#include <arch/io.h>
+#include <arch/io.h>
+#include <cpu/x86/msr.h>
+#include <arch/romcc_io.h>
+#include "haswell.h"
+
+static void report_cpu_info(void)
+{
+	struct cpuid_result cpuidr;
+	u32 i, index;
+	char cpu_string[50], *cpu_name = cpu_string; /* 48 bytes are reported */
+	int vt, txt, aes;
+	msr_t microcode_ver;
+	const char *mode[] = {"NOT ", ""};
+
+	index = 0x80000000;
+	cpuidr = cpuid(index);
+	if (cpuidr.eax < 0x80000004) {
+		strcpy(cpu_string, "Platform info not available");
+	} else {
+		u32 *p = (u32*) cpu_string;
+		for (i = 2; i <= 4 ; i++) {
+			cpuidr = cpuid(index + i);
+			*p++ = cpuidr.eax;
+			*p++ = cpuidr.ebx;
+			*p++ = cpuidr.ecx;
+			*p++ = cpuidr.edx;
+		}
+	}
+	/* Skip leading spaces in CPU name string */
+	while (cpu_name[0] == ' ')
+		cpu_name++;
+
+	microcode_ver.lo = 0;
+	microcode_ver.hi = 0;
+	wrmsr(0x8B, microcode_ver);
+	cpuidr = cpuid(1);
+	microcode_ver = rdmsr(0x8b);
+	printk(BIOS_DEBUG, "CPU id(%x) ucode:%08x %s\n", cpuidr.eax, microcode_ver.hi, cpu_name);
+	aes = (cpuidr.ecx & (1 << 25)) ? 1 : 0;
+	txt = (cpuidr.ecx & (1 << 6)) ? 1 : 0;
+	vt = (cpuidr.ecx & (1 << 5)) ? 1 : 0;
+	printk(BIOS_DEBUG, "AES %ssupported, TXT %ssupported, VT %ssupported\n",
+	       mode[aes], mode[txt], mode[vt]);
+}
+
+/* The PCI id name match comes from Intel document 472178 */
+static struct {
+	u16 dev_id;
+	const char *dev_name;
+} pch_table [] = {
+	{0x8c41, "Mobile Engineering Sample"},
+	{0x8c42, "Desktop Engineering Sample"},
+	{0x8c46, "Z87"},
+	{0x8c49, "Z85"},
+	{0x8c4a, "HM86"},
+	{0x8c4b, "H87"},
+	{0x8c4c, "Q85"},
+	{0x8c4e, "Q87"},
+	{0x8c4f, "QM87"},
+	{0x8c50, "B85"},
+	{0x8c52, "C222"},
+	{0x8c54, "C224"},
+	{0x8c56, "C226"},
+	{0x8c5c, "H81"},
+};
+
+static void report_pch_info(void)
+{
+	int i;
+	u16 dev_id = pci_read_config16(PCH_LPC_DEV, 2);
+
+
+	const char *pch_type = "Unknown";
+	for (i = 0; i < ARRAY_SIZE(pch_table); i++) {
+		if (pch_table[i].dev_id == dev_id) {
+			pch_type = pch_table[i].dev_name;
+			break;
+		}
+	}
+	printk (BIOS_DEBUG, "PCH type: %s, device id: %x, rev id %x\n",
+		pch_type, dev_id, pci_read_config8(PCH_LPC_DEV, 8));
+}
+
+void report_platform_info(void)
+{
+	report_cpu_info();
+	report_pch_info();
+}
diff --git a/src/northbridge/intel/haswell/udelay.c b/src/northbridge/intel/haswell/udelay.c
new file mode 100644
index 0000000..864e839
--- /dev/null
+++ b/src/northbridge/intel/haswell/udelay.c
@@ -0,0 +1,66 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <delay.h>
+#include <stdint.h>
+#include <cpu/x86/tsc.h>
+#include <cpu/x86/msr.h>
+
+/**
+ * Intel SandyBridge/IvyBridge CPUs always run the TSC at BCLK=100MHz
+ */
+
+/* Simple 32- to 64-bit multiplication. Uses 16-bit words to avoid overflow. */
+static inline void multiply_to_tsc(tsc_t *const tsc, const u32 a, const u32 b)
+{
+	tsc->lo = (a & 0xffff) * (b & 0xffff);
+	tsc->hi = ((tsc->lo >> 16)
+		+ ((a & 0xffff) * (b >> 16))
+		+ ((b & 0xffff) * (a >> 16)));
+	tsc->lo = ((tsc->hi & 0xffff) << 16) | (tsc->lo & 0xffff);
+	tsc->hi = ((a >> 16) * (b >> 16)) + (tsc->hi >> 16);
+}
+
+void udelay(u32 us)
+{
+	u32 dword;
+	tsc_t tsc, tsc1, tscd;
+	msr_t msr;
+	u32 fsb = 100, divisor;
+	u32 d;			/* ticks per us */
+
+	msr = rdmsr(0xce);
+	divisor = (msr.lo >> 8) & 0xff;
+
+	d = fsb * divisor; /* On Core/Core2 this is divided by 4 */
+	multiply_to_tsc(&tscd, us, d);
+
+	tsc1 = rdtsc();
+	dword = tsc1.lo + tscd.lo;
+	if ((dword < tsc1.lo) || (dword < tscd.lo)) {
+		tsc1.hi++;
+	}
+	tsc1.lo = dword;
+	tsc1.hi += tscd.hi;
+
+	do {
+		tsc = rdtsc();
+	} while ((tsc.hi < tsc1.hi)
+		 || ((tsc.hi == tsc1.hi) && (tsc.lo <= tsc1.lo)));
+}