diff --git a/src/soc/amd/cezanne/root_complex.c b/src/soc/amd/cezanne/root_complex.c
index 2586740..876f790 100644
--- a/src/soc/amd/cezanne/root_complex.c
+++ b/src/soc/amd/cezanne/root_complex.c
@@ -111,8 +111,6 @@
 	early_reserved_dram_start = e->base;
 	early_reserved_dram_end = e->base + e->size;
 
-	fixed_io_range_reserved(dev, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
-
 	/* 0x0 - 0x9ffff */
 	ram_range(dev, (*idx)++, 0, 0xa0000);
 
@@ -134,8 +132,6 @@
 	 */
 	ram_from_to(dev, (*idx)++, early_reserved_dram_end, mem_usable);
 
-	mmconf_resource(dev, (*idx)++);
-
 	/* Reserve fixed IOMMU MMIO region */
 	mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
 
diff --git a/src/soc/amd/common/block/data_fabric/domain.c b/src/soc/amd/common/block/data_fabric/domain.c
index 6573557..f5d7216 100644
--- a/src/soc/amd/common/block/data_fabric/domain.c
+++ b/src/soc/amd/common/block/data_fabric/domain.c
@@ -191,6 +191,12 @@
 	}
 }
 
+static void add_pci_cfg_resources(struct device *domain, unsigned long *idx)
+{
+	fixed_io_range_reserved(domain, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
+	mmconf_resource(domain, (*idx)++);
+}
+
 void amd_pci_domain_read_resources(struct device *domain)
 {
 	unsigned long idx = 0;
@@ -203,6 +209,8 @@
 
 	/* Only add the SoC's DRAM memory map and fixed resources once */
 	if (domain->path.domain.domain == 0) {
+		add_pci_cfg_resources(domain, &idx);
+
 		read_soc_memmap_resources(domain, &idx);
 	}
 }
diff --git a/src/soc/amd/glinda/root_complex.c b/src/soc/amd/glinda/root_complex.c
index 37d189e..9d83f6f 100644
--- a/src/soc/amd/glinda/root_complex.c
+++ b/src/soc/amd/glinda/root_complex.c
@@ -126,8 +126,6 @@
 	early_reserved_dram_start = e->base;
 	early_reserved_dram_end = e->base + e->size;
 
-	fixed_io_range_reserved(dev, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
-
 	/* 0x0 - 0x9ffff */
 	ram_range(dev, (*idx)++, 0, 0xa0000);
 
@@ -149,8 +147,6 @@
 	 */
 	ram_from_to(dev, (*idx)++, early_reserved_dram_end, mem_usable);
 
-	mmconf_resource(dev, (*idx)++);
-
 	/* Reserve fixed IOMMU MMIO region */
 	mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
 
diff --git a/src/soc/amd/mendocino/root_complex.c b/src/soc/amd/mendocino/root_complex.c
index 7291058..5561240 100644
--- a/src/soc/amd/mendocino/root_complex.c
+++ b/src/soc/amd/mendocino/root_complex.c
@@ -154,8 +154,6 @@
 	early_reserved_dram_start = e->base;
 	early_reserved_dram_end = e->base + e->size;
 
-	fixed_io_range_reserved(dev, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
-
 	/* 0x0 - 0x9ffff */
 	ram_range(dev, (*idx)++, 0, 0xa0000);
 
@@ -177,8 +175,6 @@
 	 */
 	ram_from_to(dev, (*idx)++, early_reserved_dram_end, mem_usable);
 
-	mmconf_resource(dev, (*idx)++);
-
 	/* Reserve fixed IOMMU MMIO region */
 	mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
 
diff --git a/src/soc/amd/phoenix/root_complex.c b/src/soc/amd/phoenix/root_complex.c
index 3e61df1..1394b2c 100644
--- a/src/soc/amd/phoenix/root_complex.c
+++ b/src/soc/amd/phoenix/root_complex.c
@@ -126,8 +126,6 @@
 	early_reserved_dram_start = e->base;
 	early_reserved_dram_end = e->base + e->size;
 
-	fixed_io_range_reserved(dev, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
-
 	/* 0x0 - 0x9ffff */
 	ram_range(dev, (*idx)++, 0, 0xa0000);
 
@@ -149,8 +147,6 @@
 	 */
 	ram_from_to(dev, (*idx)++, early_reserved_dram_end, mem_usable);
 
-	mmconf_resource(dev, (*idx)++);
-
 	/* Reserve fixed IOMMU MMIO region */
 	mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
 
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index ffe4f66..1e702ab 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -111,8 +111,6 @@
 	early_reserved_dram_start = e->base;
 	early_reserved_dram_end = e->base + e->size;
 
-	fixed_io_range_reserved(dev, (*idx)++, PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_PORT_COUNT);
-
 	/* 0x0 - 0x9ffff */
 	ram_range(dev, (*idx)++, 0, 0xa0000);
 
@@ -132,8 +130,6 @@
 	 * cbmem_top() accounts for low UMA and TSEG if they are used. */
 	ram_from_to(dev, (*idx)++, early_reserved_dram_end, mem_usable);
 
-	mmconf_resource(dev, (*idx)++);
-
 	/* Reserve fixed IOMMU MMIO region */
 	mmio_range(dev, (*idx)++, IOMMU_RESERVED_MMIO_BASE, IOMMU_RESERVED_MMIO_SIZE);
 
diff --git a/src/vendorcode/amd/opensil/genoa_poc/memmap.c b/src/vendorcode/amd/opensil/genoa_poc/memmap.c
index 1e633d9..39b27ec 100644
--- a/src/vendorcode/amd/opensil/genoa_poc/memmap.c
+++ b/src/vendorcode/amd/opensil/genoa_poc/memmap.c
@@ -114,8 +114,6 @@
 	if (mem_usable != top_mem)
 		reserved_ram_from_to(dev, (*idx)++, mem_usable, top_mem);
 
-	mmconf_resource(dev, (*idx)++);
-
 	// Check if we're done
 	if (top_of_mem <= 0x100000000)
 		return;