diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig
index dcc9162..e3f9aec 100644
--- a/src/northbridge/intel/haswell/Kconfig
+++ b/src/northbridge/intel/haswell/Kconfig
@@ -108,4 +108,13 @@
 	  This probably only happens when the DRAM gets hot, but what MRC exactly
 	  does when this setting is enabled has not been investigated.
 
+config FIXED_MCHBAR_MMIO_BASE
+	default 0xfed10000
+
+config FIXED_DMIBAR_MMIO_BASE
+	default 0xfed18000
+
+config FIXED_EPBAR_MMIO_BASE
+	default 0xfed19000
+
 endif
diff --git a/src/northbridge/intel/haswell/acpi/ctdp.asl b/src/northbridge/intel/haswell/acpi/ctdp.asl
index 47b7940..565b2d2 100644
--- a/src/northbridge/intel/haswell/acpi/ctdp.asl
+++ b/src/northbridge/intel/haswell/acpi/ctdp.asl
@@ -9,7 +9,7 @@
 	Name (CTCU, 2)		/* CTDP Up Select */
 	Name (SPL1, 0)		/* Saved PL1 value */
 
-	OperationRegion (MCHB, SystemMemory, DEFAULT_MCHBAR + 0x5000, 0x1000)
+	OperationRegion (MCHB, SystemMemory, CONFIG_FIXED_MCHBAR_MMIO_BASE + 0x5000, 0x1000)
 	Field (MCHB, DWordAcc, Lock, Preserve)
 	{
 		Offset (0x930), /* PACKAGE_POWER_SKU */
diff --git a/src/northbridge/intel/haswell/acpi/hostbridge.asl b/src/northbridge/intel/haswell/acpi/hostbridge.asl
index 1ff2826..bc1a1c8 100644
--- a/src/northbridge/intel/haswell/acpi/hostbridge.asl
+++ b/src/northbridge/intel/haswell/acpi/hostbridge.asl
@@ -175,9 +175,9 @@
 
 	Name (PDRS, ResourceTemplate () {
 		Memory32Fixed (ReadWrite, CONFIG_FIXED_RCBA_MMIO_BASE, CONFIG_RCBA_LENGTH)
-		Memory32Fixed (ReadWrite, DEFAULT_MCHBAR,   0x00008000)
-		Memory32Fixed (ReadWrite, DEFAULT_DMIBAR,   0x00001000)
-		Memory32Fixed (ReadWrite, DEFAULT_EPBAR,    0x00001000)
+		Memory32Fixed (ReadWrite, CONFIG_FIXED_MCHBAR_MMIO_BASE, 0x00008000)
+		Memory32Fixed (ReadWrite, CONFIG_FIXED_DMIBAR_MMIO_BASE, 0x00001000)
+		Memory32Fixed (ReadWrite, CONFIG_FIXED_EPBAR_MMIO_BASE,  0x00001000)
 		Memory32Fixed (ReadWrite, CONFIG_MMCONF_BASE_ADDRESS, CONFIG_MMCONF_LENGTH)
 		Memory32Fixed (ReadWrite, 0xfed20000, 0x00020000) // Misc ICH
 		Memory32Fixed (ReadWrite, 0xfed40000, 0x00005000) // Misc ICH
diff --git a/src/northbridge/intel/haswell/early_init.c b/src/northbridge/intel/haswell/early_init.c
index a0e4211..f81ff9f 100644
--- a/src/northbridge/intel/haswell/early_init.c
+++ b/src/northbridge/intel/haswell/early_init.c
@@ -14,12 +14,12 @@
 {
 	printk(BIOS_DEBUG, "Setting up static northbridge registers...");
 	/* Set up all hardcoded northbridge BARs */
-	pci_write_config32(HOST_BRIDGE, EPBAR,  DEFAULT_EPBAR  | 1);
-	pci_write_config32(HOST_BRIDGE, EPBAR  + 4, (0LL + DEFAULT_EPBAR)  >> 32);
-	pci_write_config32(HOST_BRIDGE, MCHBAR, DEFAULT_MCHBAR | 1);
-	pci_write_config32(HOST_BRIDGE, MCHBAR + 4, (0LL + DEFAULT_MCHBAR) >> 32);
-	pci_write_config32(HOST_BRIDGE, DMIBAR, DEFAULT_DMIBAR | 1);
-	pci_write_config32(HOST_BRIDGE, DMIBAR + 4, (0LL + DEFAULT_DMIBAR) >> 32);
+	pci_write_config32(HOST_BRIDGE, EPBAR,  CONFIG_FIXED_EPBAR_MMIO_BASE  | 1);
+	pci_write_config32(HOST_BRIDGE, EPBAR  + 4, 0);
+	pci_write_config32(HOST_BRIDGE, MCHBAR, CONFIG_FIXED_MCHBAR_MMIO_BASE | 1);
+	pci_write_config32(HOST_BRIDGE, MCHBAR + 4, 0);
+	pci_write_config32(HOST_BRIDGE, DMIBAR, CONFIG_FIXED_DMIBAR_MMIO_BASE | 1);
+	pci_write_config32(HOST_BRIDGE, DMIBAR + 4, 0);
 
 	/* Set C0000-FFFFF to access RAM on both reads and writes */
 	pci_write_config8(HOST_BRIDGE, PAM0, 0x30);
diff --git a/src/northbridge/intel/haswell/haswell.h b/src/northbridge/intel/haswell/haswell.h
index f6678ca..f158c21 100644
--- a/src/northbridge/intel/haswell/haswell.h
+++ b/src/northbridge/intel/haswell/haswell.h
@@ -34,9 +34,8 @@
  * 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))))
+#include <northbridge/intel/common/fixed_bars.h>
+
 #define MCHBAR8_AND(x,  and) (MCHBAR8(x)  = MCHBAR8(x)  & (and))
 #define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and))
 #define MCHBAR32_AND(x, and) (MCHBAR32(x) = MCHBAR32(x) & (and))
@@ -62,10 +61,7 @@
  * 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 EPBAR64(x) *((volatile u64 *)(DEFAULT_EPBAR + (x)))
+#define EPBAR64(x) (*((volatile u64 *)((uintptr_t)CONFIG_FIXED_EPBAR_MMIO_BASE + (x))))
 
 #include "registers/epbar.h"
 
@@ -73,10 +69,7 @@
  * 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 DMIBAR64(x) *((volatile u64 *)(DEFAULT_DMIBAR + (x)))
+#define DMIBAR64(x) (*((volatile u64 *)((uintptr_t)CONFIG_FIXED_DMIBAR_MMIO_BASE + (x))))
 
 #include "registers/dmibar.h"
 
diff --git a/src/northbridge/intel/haswell/memmap.h b/src/northbridge/intel/haswell/memmap.h
index 0ff7b52..02bdecc 100644
--- a/src/northbridge/intel/haswell/memmap.h
+++ b/src/northbridge/intel/haswell/memmap.h
@@ -3,10 +3,6 @@
 #ifndef __NORTHBRIDGE_INTEL_HASWELL_MEMMAP_H__
 #define __NORTHBRIDGE_INTEL_HASWELL_MEMMAP_H__
 
-#define DEFAULT_MCHBAR		0xfed10000
-#define DEFAULT_DMIBAR		0xfed18000
-#define DEFAULT_EPBAR		0xfed19000
-
 #define GFXVT_BASE_ADDRESS	0xfed90000ULL
 #define GFXVT_BASE_SIZE		0x1000
 
diff --git a/src/northbridge/intel/haswell/northbridge.c b/src/northbridge/intel/haswell/northbridge.c
index c2c8143..61ad236 100644
--- a/src/northbridge/intel/haswell/northbridge.c
+++ b/src/northbridge/intel/haswell/northbridge.c
@@ -477,7 +477,7 @@
 	reg32 &= ~(0xff << 16);
 	reg32 |= 1 | (1 << 16);
 	EPBAR32(EPLE1D) = reg32;
-	EPBAR64(EPLE1A) = (uintptr_t)DEFAULT_DMIBAR;
+	EPBAR64(EPLE1A) = CONFIG_FIXED_DMIBAR_MMIO_BASE;
 
 	for (unsigned int i = 0; i <= 2; i++) {
 		const struct device *const dev = pcidev_on_root(1, i);
@@ -493,7 +493,7 @@
 		EPBAR32(eple_d[i]) = reg32;
 
 		pci_update_config32(dev, PEG_ESD, ~(0xff << 16), (1 << 16));
-		pci_write_config32(dev, PEG_LE1A, (uintptr_t)DEFAULT_EPBAR);
+		pci_write_config32(dev, PEG_LE1A, CONFIG_FIXED_EPBAR_MMIO_BASE);
 		pci_write_config32(dev, PEG_LE1A + 4, 0);
 		pci_update_config32(dev, PEG_LE1D, ~(0xff << 16), (1 << 16) | 1);
 
@@ -513,7 +513,7 @@
 	DMIBAR32(DMILE1D) = reg32;
 	DMIBAR64(DMILE1A) = CONFIG_FIXED_RCBA_MMIO_BASE;
 
-	DMIBAR64(DMILE2A) = (uintptr_t)DEFAULT_EPBAR;
+	DMIBAR64(DMILE2A) = CONFIG_FIXED_EPBAR_MMIO_BASE;
 	reg32 = DMIBAR32(DMILE2D);
 	reg32 &= ~(0xff << 16);
 	reg32 |= 1 | (1 << 16);
diff --git a/src/northbridge/intel/haswell/romstage.c b/src/northbridge/intel/haswell/romstage.c
index f5d500b2..cbb9834 100644
--- a/src/northbridge/intel/haswell/romstage.c
+++ b/src/northbridge/intel/haswell/romstage.c
@@ -50,9 +50,9 @@
 
 	struct pei_data pei_data = {
 		.pei_version		= PEI_VERSION,
-		.mchbar			= (uintptr_t)DEFAULT_MCHBAR,
-		.dmibar			= (uintptr_t)DEFAULT_DMIBAR,
-		.epbar			= DEFAULT_EPBAR,
+		.mchbar			= CONFIG_FIXED_MCHBAR_MMIO_BASE,
+		.dmibar			= CONFIG_FIXED_DMIBAR_MMIO_BASE,
+		.epbar			= CONFIG_FIXED_EPBAR_MMIO_BASE,
 		.pciexbar		= CONFIG_MMCONF_BASE_ADDRESS,
 		.smbusbar		= CONFIG_FIXED_SMBUS_IO_BASE,
 		.hpet_address		= HPET_ADDR,