diff --git a/src/soc/amd/cezanne/root_complex.c b/src/soc/amd/cezanne/root_complex.c
index e29b4e03e4..dabfa789aa 100644
--- a/src/soc/amd/cezanne/root_complex.c
+++ b/src/soc/amd/cezanne/root_complex.c
@@ -168,7 +168,7 @@ static void read_resources(struct device *dev)
 	}
 
 	/* GNB IOAPIC resource */
-	gnb_apic = new_resource(dev, GNB_IO_APIC_ADDR);
+	gnb_apic = new_resource(dev, idx++);
 	gnb_apic->base = GNB_IO_APIC_ADDR;
 	gnb_apic->size = 0x00001000;
 	gnb_apic->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index 076588e4f9..a3a3d4ba64 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -166,7 +166,7 @@ static void read_resources(struct device *dev)
 	}
 
 	/* GNB IOAPIC resource */
-	gnb_apic = new_resource(dev, GNB_IO_APIC_ADDR);
+	gnb_apic = new_resource(dev, idx++);
 	gnb_apic->base = GNB_IO_APIC_ADDR;
 	gnb_apic->size = 0x00001000;
 	gnb_apic->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
diff --git a/src/soc/amd/sabrina/root_complex.c b/src/soc/amd/sabrina/root_complex.c
index fc49f4fb9b..2a3ed6f753 100644
--- a/src/soc/amd/sabrina/root_complex.c
+++ b/src/soc/amd/sabrina/root_complex.c
@@ -170,7 +170,7 @@ static void read_resources(struct device *dev)
 	}
 
 	/* GNB IOAPIC resource */
-	gnb_apic = new_resource(dev, GNB_IO_APIC_ADDR);
+	gnb_apic = new_resource(dev, idx++);
 	gnb_apic->base = GNB_IO_APIC_ADDR;
 	gnb_apic->size = 0x00001000;
 	gnb_apic->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c
index 0a8064888f..0384e00b88 100644
--- a/src/soc/amd/stoneyridge/northbridge.c
+++ b/src/soc/amd/stoneyridge/northbridge.c
@@ -68,7 +68,7 @@ static void read_resources(struct device *dev)
 	mmconf_resource(dev, idx++);
 
 	/* NB IOAPIC2 resource */
-	res = new_resource(dev, IO_APIC2_ADDR); /* IOAPIC2 */
+	res = new_resource(dev, idx++); /* IOAPIC2 */
 	res->base = IO_APIC2_ADDR;
 	res->size = 0x00001000;
 	res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;