diff --git a/src/northbridge/intel/fsp_sandybridge/northbridge.c b/src/northbridge/intel/fsp_sandybridge/northbridge.c
index c9f6e1c..92a4365 100644
--- a/src/northbridge/intel/fsp_sandybridge/northbridge.c
+++ b/src/northbridge/intel/fsp_sandybridge/northbridge.c
@@ -244,28 +244,13 @@
 
 	pci_dev_read_resources(dev);
 
-	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
 	buses = get_pcie_bar(&pcie_config_base);
 	if (buses) {
-		struct resource *resource = new_resource(dev, 0xcf);
+		struct resource *resource = new_resource(dev, PCIEXBAR);
 		mmconf_resource_init(resource, pcie_config_base, buses);
 	}
 }
 
-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) {
@@ -319,7 +304,7 @@
 
 static struct device_operations mc_ops = {
 	.read_resources   = mc_read_resources,
-	.set_resources    = mc_set_resources,
+	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init             = northbridge_init,
 	.scan_bus         = 0,
diff --git a/src/northbridge/intel/i3100/northbridge.c b/src/northbridge/intel/i3100/northbridge.c
index 4549f85..d5eb8a6 100644
--- a/src/northbridge/intel/i3100/northbridge.c
+++ b/src/northbridge/intel/i3100/northbridge.c
@@ -138,18 +138,7 @@
 {
 	pci_dev_read_resources(dev);
 
-	mmconf_resource(dev, 0xcf);
-}
-
-static void mc_set_resources(device_t dev)
-{
-	struct resource *resource;
-
-	resource = find_resource(dev, 0xcf);
-	if (resource) {
-		report_resource_stored(dev, resource, "<mmconfig>");
-	}
-	pci_dev_set_resources(dev);
+	mmconf_resource(dev, EXPECBASE);
 }
 
 static void intel_set_subsystem(device_t dev, unsigned vendor, unsigned device)
@@ -188,7 +177,7 @@
 
 static struct device_operations mc_ops = {
 	.read_resources   = mc_read_resources,
-	.set_resources    = mc_set_resources,
+	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init             = 0,
 	.scan_bus         = 0,
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index c027bec..6226a63 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -157,28 +157,13 @@
 
 	pci_dev_read_resources(dev);
 
-	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
 	buses = get_pcie_bar(&pcie_config_base);
 	if (buses) {
-		struct resource *resource = new_resource(dev, 0xcf);
+		struct resource *resource = new_resource(dev, PCIEXBAR);
 		mmconf_resource_init(resource, pcie_config_base, buses);
 	}
 }
 
-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) {
@@ -216,7 +201,7 @@
 
 static struct device_operations mc_ops = {
 	.read_resources   = mc_read_resources,
-	.set_resources    = mc_set_resources,
+	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.acpi_fill_ssdt_generator = generate_cpu_entries,
 #if CONFIG_HAVE_ACPI_RESUME
diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c
index 7f7c842..71dd802 100644
--- a/src/northbridge/intel/sandybridge/northbridge.c
+++ b/src/northbridge/intel/sandybridge/northbridge.c
@@ -264,28 +264,13 @@
 
 	pci_dev_read_resources(dev);
 
-	/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
 	buses = get_pcie_bar(&pcie_config_base);
 	if (buses) {
-		struct resource *resource = new_resource(dev, 0xcf);
+		struct resource *resource = new_resource(dev, PCIEXBAR);
 		mmconf_resource_init(resource, pcie_config_base, buses);
 	}
 }
 
-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) {
@@ -474,7 +459,7 @@
 
 static struct device_operations mc_ops = {
 	.read_resources   = mc_read_resources,
-	.set_resources    = mc_set_resources,
+	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init             = northbridge_init,
 	.scan_bus         = 0,