diff --git a/src/mainboard/amd/dinar/get_bus_conf.c b/src/mainboard/amd/dinar/get_bus_conf.c
index 3104b73cd4..5ab2ddd5b2 100644
--- a/src/mainboard/amd/dinar/get_bus_conf.c
+++ b/src/mainboard/amd/dinar/get_bus_conf.c
@@ -32,25 +32,6 @@
  */
 u8 bus_sb700[2];
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-/*
- * HT Chain device num, actually it is unit id base of every ht device in chain,
- * assume every chain only have 4 ht device at most
- */
-u32 hcdnx[] = {
-	0x20202020,
-};
-
-u32 sbdn_sb700;
-
 void get_bus_conf(void)
 {
 	device_t dev;
@@ -58,17 +39,14 @@ void get_bus_conf(void)
 
 	printk(BIOS_DEBUG, "Mainboard - Get_bus_conf.c - get_bus_conf - Start.\n");
 
-	sbdn_sb700 = 0;
 
 	for (i = 0; i < ARRAY_SIZE(bus_sb700); i++) {
 		bus_sb700[i] = 0;
 	}
 
 
-	bus_sb700[0] = (pci1234x[0] >> 16) & 0xff;
-
 	/* sb700 */
-	dev = dev_find_slot(bus_sb700[0], PCI_DEVFN(sbdn_sb700 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 
 
diff --git a/src/mainboard/amd/dinar/irq_tables.c b/src/mainboard/amd/dinar/irq_tables.c
index 865d264429..8242b4e911 100644
--- a/src/mainboard/amd/dinar/irq_tables.c
+++ b/src/mainboard/amd/dinar/irq_tables.c
@@ -43,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb700[2];
-extern unsigned long sbdn_sb700;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -70,8 +68,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb700[0];
-	pirq->rtr_devfn = ((sbdn_sb700 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -87,7 +85,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb700[0], ((sbdn_sb700 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/dinar/mptable.c b/src/mainboard/amd/dinar/mptable.c
index 398ee86f34..d239a7e749 100644
--- a/src/mainboard/amd/dinar/mptable.c
+++ b/src/mainboard/amd/dinar/mptable.c
@@ -29,8 +29,6 @@
 #include <cpu/amd/amdfam15.h>
 
 extern u8 bus_sb700[2];
-extern u32 sbdn_sb700;
-
 
 static void *smp_write_config_table(void *v)
 {
@@ -60,8 +58,7 @@ static void *smp_write_config_table(void *v)
 		apicid_sb700 = CONFIG_MAX_CPUS + 1;
 	apicid_rd890 = apicid_sb700 + 1;
 
-	//bus_sb700[0], TODO: why bus_sb700[0] use same value of bus_rd890[0] assigned by get_pci1234(), instead of 0.
-	dev = dev_find_slot(0, PCI_DEVFN(sbdn_sb700 + 0x14, 0));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
 	if (dev) {
 		/* Set sb700 IOAPIC ID */
 		dword = pci_read_config32(dev, 0x74) & 0xfffffff0;
diff --git a/src/mainboard/amd/inagua/get_bus_conf.c b/src/mainboard/amd/inagua/get_bus_conf.c
index c688791022..c39decfed7 100644
--- a/src/mainboard/amd/inagua/get_bus_conf.c
+++ b/src/mainboard/amd/inagua/get_bus_conf.c
@@ -33,17 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
-
 void get_bus_conf(void)
 {
 	u32 apicid_base;
@@ -52,23 +41,20 @@ void get_bus_conf(void)
 	int i;
 
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
 
-	//  bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/amd/inagua/irq_tables.c b/src/mainboard/amd/inagua/irq_tables.c
index 98d68d3736..305988b9c5 100644
--- a/src/mainboard/amd/inagua/irq_tables.c
+++ b/src/mainboard/amd/inagua/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/olivehill/get_bus_conf.c b/src/mainboard/amd/olivehill/get_bus_conf.c
index 508a73cfba..1dda593943 100644
--- a/src/mainboard/amd/olivehill/get_bus_conf.c
+++ b/src/mainboard/amd/olivehill/get_bus_conf.c
@@ -35,17 +35,6 @@
 u8 bus_yangtze[6];
 u32 apicid_yangtze;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_yangtze;
-
 
 void get_bus_conf(void)
 {
@@ -66,23 +55,20 @@ void get_bus_conf(void)
 	value &= ~(1 << 11);
 	pci_write_config32(dev, 0x60, value);
 
-	sbdn_yangtze = 0;
 
 	memset(bus_yangtze, 0, sizeof(bus_yangtze));
 
 
-	//  bus_yangtze[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_yangtze[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* yangtze */
-	dev = dev_find_slot(bus_yangtze[0], PCI_DEVFN(sbdn_yangtze + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_yangtze[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_yangtze[0], PCI_DEVFN(sbdn_yangtze + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_yangtze[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/amd/olivehill/irq_tables.c b/src/mainboard/amd/olivehill/irq_tables.c
index 8dbea45ed4..22ed1ab0a8 100644
--- a/src/mainboard/amd/olivehill/irq_tables.c
+++ b/src/mainboard/amd/olivehill/irq_tables.c
@@ -43,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_yangtze[6];
-extern unsigned long sbdn_yangtze;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -69,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_yangtze[0];
-	pirq->rtr_devfn = ((sbdn_yangtze + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -85,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_yangtze[0], ((sbdn_yangtze + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/parmer/get_bus_conf.c b/src/mainboard/amd/parmer/get_bus_conf.c
index 490e3c200d..8dcd4e5593 100644
--- a/src/mainboard/amd/parmer/get_bus_conf.c
+++ b/src/mainboard/amd/parmer/get_bus_conf.c
@@ -35,17 +35,6 @@
 u8 bus_hudson[6];
 u32 apicid_hudson;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_hudson;
-
 
 void get_bus_conf(void)
 {
@@ -56,23 +45,21 @@ void get_bus_conf(void)
 
 
 
-	sbdn_hudson = 0;
 
 	memset(bus_hudson, 0, sizeof(bus_hudson));
 
 
 
-	bus_hudson[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* Hudson */
-	dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_hudson[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_hudson[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/amd/parmer/irq_tables.c b/src/mainboard/amd/parmer/irq_tables.c
index 19f800743f..013941ca56 100644
--- a/src/mainboard/amd/parmer/irq_tables.c
+++ b/src/mainboard/amd/parmer/irq_tables.c
@@ -43,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_hudson[6];
-extern unsigned long sbdn_hudson;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -69,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_hudson[0];
-	pirq->rtr_devfn = ((sbdn_hudson + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -85,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_hudson[0], ((sbdn_hudson + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/persimmon/get_bus_conf.c b/src/mainboard/amd/persimmon/get_bus_conf.c
index 412744c463..9434429f5a 100644
--- a/src/mainboard/amd/persimmon/get_bus_conf.c
+++ b/src/mainboard/amd/persimmon/get_bus_conf.c
@@ -35,16 +35,6 @@ u8 bus_sb800[6];
 u32 apicid_sb800;
 u32 apicver_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
 
 void get_bus_conf(void)
 {
@@ -54,22 +44,19 @@ void get_bus_conf(void)
 	int i;
 
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
-//	bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/amd/persimmon/irq_tables.c b/src/mainboard/amd/persimmon/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/amd/persimmon/irq_tables.c
+++ b/src/mainboard/amd/persimmon/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/south_station/get_bus_conf.c b/src/mainboard/amd/south_station/get_bus_conf.c
index f221a4591f..53c7953f3c 100644
--- a/src/mainboard/amd/south_station/get_bus_conf.c
+++ b/src/mainboard/amd/south_station/get_bus_conf.c
@@ -33,16 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-  0x0000ff0,
-};
-
-u32 sbdn_sb800;
 
 void get_bus_conf(void)
 {
@@ -52,16 +42,13 @@ void get_bus_conf(void)
   int i;
 
 
-  sbdn_sb800 = 0;
 
   memset(bus_sb800, 0, sizeof(bus_sb800));
 
 
-//  bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-  bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
   /* sb800 */
-  dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+  dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 
 
@@ -70,7 +57,7 @@ void get_bus_conf(void)
   }
 
   for (i = 0; i < 4; i++) {
-    dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+    dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
     if (dev) {
       bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
     }
diff --git a/src/mainboard/amd/south_station/irq_tables.c b/src/mainboard/amd/south_station/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/amd/south_station/irq_tables.c
+++ b/src/mainboard/amd/south_station/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/thatcher/get_bus_conf.c b/src/mainboard/amd/thatcher/get_bus_conf.c
index b7d6d23d4a..c2dbacd1f4 100644
--- a/src/mainboard/amd/thatcher/get_bus_conf.c
+++ b/src/mainboard/amd/thatcher/get_bus_conf.c
@@ -35,17 +35,6 @@
 u8 bus_hudson[6];
 u32 apicid_hudson;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_hudson;
-
 
 void get_bus_conf(void)
 {
@@ -54,22 +43,20 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_hudson = 0;
 
 	memset(bus_hudson, 0, sizeof(bus_hudson));
 
 
-	bus_hudson[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* Hudson */
-	dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_hudson[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_hudson[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/amd/thatcher/irq_tables.c b/src/mainboard/amd/thatcher/irq_tables.c
index 19f800743f..013941ca56 100644
--- a/src/mainboard/amd/thatcher/irq_tables.c
+++ b/src/mainboard/amd/thatcher/irq_tables.c
@@ -43,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_hudson[6];
-extern unsigned long sbdn_hudson;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -69,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_hudson[0];
-	pirq->rtr_devfn = ((sbdn_hudson + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -85,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_hudson[0], ((sbdn_hudson + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/torpedo/get_bus_conf.c b/src/mainboard/amd/torpedo/get_bus_conf.c
index 3f8f50ed99..b88e3fbeb1 100644
--- a/src/mainboard/amd/torpedo/get_bus_conf.c
+++ b/src/mainboard/amd/torpedo/get_bus_conf.c
@@ -31,26 +31,6 @@
 */
 u8 bus_sb900[6];
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-/*
-* HT Chain device num, actually it is unit id base of every ht device in chain,
-* assume every chain only have 4 ht device at most
-*/
-u32 hcdnx[] = {
-	0x20202020,
-};
-
-
-u32 sbdn_sb900;
-
 void get_bus_conf(void)
 {
 	device_t dev;
@@ -58,23 +38,21 @@ void get_bus_conf(void)
 
 	printk(BIOS_DEBUG, "Mainboard - %s - %s - Start.\n", __FILE__, __func__);
 
-	sbdn_sb900 = 0;
 
 	memset(bus_sb900, 0, sizeof(bus_sb900));
 
 
-	bus_sb900[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb900 */
-	dev = dev_find_slot(bus_sb900[0], PCI_DEVFN(sbdn_sb900 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb900[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb900[0],
-				  PCI_DEVFN(sbdn_sb900 + 0x14, i));
+		dev = dev_find_slot(0,
+				  PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb900[2 + i] =
 			    pci_read_config8(dev, PCI_SECONDARY_BUS);
diff --git a/src/mainboard/amd/torpedo/irq_tables.c b/src/mainboard/amd/torpedo/irq_tables.c
index f47d9dc4ff..c501125d06 100644
--- a/src/mainboard/amd/torpedo/irq_tables.c
+++ b/src/mainboard/amd/torpedo/irq_tables.c
@@ -45,8 +45,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb900[6];
-extern unsigned long sbdn_sb900;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -72,8 +70,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb900[0];
-	pirq->rtr_devfn = ((sbdn_sb900 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -89,7 +87,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb900[0], ((sbdn_sb900 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/amd/union_station/get_bus_conf.c b/src/mainboard/amd/union_station/get_bus_conf.c
index 0b55a2ac79..52b5d884a5 100644
--- a/src/mainboard/amd/union_station/get_bus_conf.c
+++ b/src/mainboard/amd/union_station/get_bus_conf.c
@@ -33,16 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-  0x0000ff0,
-};
-
-u32 sbdn_sb800;
 
 void get_bus_conf(void)
 {
@@ -52,18 +42,15 @@ void get_bus_conf(void)
   int i;
 
 
-  sbdn_sb800 = 0;
 
   memset(bus_sb800, 0, sizeof(bus_sb800));
 
 
 
 
-//  bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-  bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
   /* sb800 */
-  dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+  dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 
 
@@ -72,7 +59,7 @@ void get_bus_conf(void)
   }
 
   for (i = 0; i < 4; i++) {
-    dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+    dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
     if (dev) {
       bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
     }
diff --git a/src/mainboard/amd/union_station/irq_tables.c b/src/mainboard/amd/union_station/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/amd/union_station/irq_tables.c
+++ b/src/mainboard/amd/union_station/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/asrock/e350m1/get_bus_conf.c b/src/mainboard/asrock/e350m1/get_bus_conf.c
index 255358836b..f2c8056df3 100644
--- a/src/mainboard/asrock/e350m1/get_bus_conf.c
+++ b/src/mainboard/asrock/e350m1/get_bus_conf.c
@@ -33,16 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-  0x0000ff0,
-};
-
-u32 sbdn_sb800;
 
 void get_bus_conf(void)
 {
@@ -52,22 +42,19 @@ void get_bus_conf(void)
   int i;
 
 
-  sbdn_sb800 = 0;
 
   memset(bus_sb800, 0, sizeof(bus_sb800));
 
-//  bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-  bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
   /* sb800 */
-  dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+  dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
   if (dev) {
     bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
   }
 
   for (i = 0; i < 4; i++) {
-    dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+    dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
     if (dev) {
       bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
     }
diff --git a/src/mainboard/asrock/e350m1/irq_tables.c b/src/mainboard/asrock/e350m1/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/asrock/e350m1/irq_tables.c
+++ b/src/mainboard/asrock/e350m1/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/asrock/imb-a180/get_bus_conf.c b/src/mainboard/asrock/imb-a180/get_bus_conf.c
index 8610e65999..17ff8a58c9 100644
--- a/src/mainboard/asrock/imb-a180/get_bus_conf.c
+++ b/src/mainboard/asrock/imb-a180/get_bus_conf.c
@@ -32,16 +32,7 @@
 u8 bus_yangtze[6];
 u32 apicid_yangtze;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
 
-u32 sbdn_yangtze;
 
 void get_bus_conf(void)
 {
@@ -61,23 +52,20 @@ void get_bus_conf(void)
 	value &= ~(1 << 11);
 	pci_write_config32(dev, 0x60, value);
 
-	sbdn_yangtze = 0;
 
 	memset(bus_yangtze, 0, sizeof(bus_yangtze));
 
 
-	//  bus_yangtze[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_yangtze[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* yangtze */
-	dev = dev_find_slot(bus_yangtze[0], PCI_DEVFN(sbdn_yangtze + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_yangtze[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_yangtze[0], PCI_DEVFN(sbdn_yangtze + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_yangtze[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/asrock/imb-a180/irq_tables.c b/src/mainboard/asrock/imb-a180/irq_tables.c
index 29dc99913a..c1c25baf02 100644
--- a/src/mainboard/asrock/imb-a180/irq_tables.c
+++ b/src/mainboard/asrock/imb-a180/irq_tables.c
@@ -43,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_yangtze[6];
-extern unsigned long sbdn_yangtze;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -69,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_yangtze[0];
-	pirq->rtr_devfn = ((sbdn_yangtze + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -85,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_yangtze[0], ((sbdn_yangtze + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/asus/f2a85-m/get_bus_conf.c b/src/mainboard/asus/f2a85-m/get_bus_conf.c
index 389ab8f368..fe8253ee03 100644
--- a/src/mainboard/asus/f2a85-m/get_bus_conf.c
+++ b/src/mainboard/asus/f2a85-m/get_bus_conf.c
@@ -33,16 +33,7 @@
 u8 bus_hudson[6];
 u32 apicid_hudson;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
 
-u32 sbdn_hudson;
 
 void get_bus_conf(void)
 {
@@ -51,23 +42,21 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_hudson = 0;
 
 	memset(bus_hudson, 0, sizeof(bus_hudson));
 
 
 
-	bus_hudson[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* Hudson */
-	dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_hudson[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_hudson[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/asus/f2a85-m/irq_tables.c b/src/mainboard/asus/f2a85-m/irq_tables.c
index 8fb6ff35b2..0bab5c9ca5 100644
--- a/src/mainboard/asus/f2a85-m/irq_tables.c
+++ b/src/mainboard/asus/f2a85-m/irq_tables.c
@@ -20,6 +20,7 @@
 #include <arch/pirq_routing.h>
 #include <console/console.h>
 #include <cpu/amd/amdfam15.h>
+#include <device/pci_def.h>
 #include <stdint.h>
 #include <string.h>
 
@@ -42,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_hudson[6];
-extern unsigned long sbdn_hudson;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -68,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_hudson[0];
-	pirq->rtr_devfn = ((sbdn_hudson + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -84,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_hudson[0], ((sbdn_hudson + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/gizmosphere/gizmo/get_bus_conf.c b/src/mainboard/gizmosphere/gizmo/get_bus_conf.c
index 646c543dba..2cc2c0c30f 100755
--- a/src/mainboard/gizmosphere/gizmo/get_bus_conf.c
+++ b/src/mainboard/gizmosphere/gizmo/get_bus_conf.c
@@ -34,17 +34,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
-
 
 void get_bus_conf(void)
 {
@@ -53,24 +42,21 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
 
 
-//	bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/gizmosphere/gizmo/irq_tables.c b/src/mainboard/gizmosphere/gizmo/irq_tables.c
index 5ce2be932d..bb33568562 100755
--- a/src/mainboard/gizmosphere/gizmo/irq_tables.c
+++ b/src/mainboard/gizmosphere/gizmo/irq_tables.c
@@ -45,8 +45,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -72,8 +70,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -89,7 +87,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/get_bus_conf.c b/src/mainboard/hp/pavilion_m6_1035dx/get_bus_conf.c
index bd5026d136..ef4eeb883e 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/get_bus_conf.c
+++ b/src/mainboard/hp/pavilion_m6_1035dx/get_bus_conf.c
@@ -34,17 +34,6 @@
 u8 bus_hudson[6];
 u32 apicid_hudson;
 
-/*
- * Here you only need to set value in pci1234 for HT-IO that could be installed or not
- * You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_hudson;
-
 
 void get_bus_conf(void)
 {
@@ -53,21 +42,19 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_hudson = 0;
 
 	memset(bus_hudson, 0, sizeof(bus_hudson));
 
-	bus_hudson[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* Hudson */
-	dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_hudson[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_hudson[0], PCI_DEVFN(sbdn_hudson + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_hudson[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/irq_tables.c b/src/mainboard/hp/pavilion_m6_1035dx/irq_tables.c
index b0f2a15207..42364e959a 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/irq_tables.c
+++ b/src/mainboard/hp/pavilion_m6_1035dx/irq_tables.c
@@ -20,6 +20,7 @@
 #include <arch/pirq_routing.h>
 #include <cpu/amd/amdfam15.h>
 #include <console/console.h>
+#include <device/pci_def.h>
 #include <string.h>
 #include <stdint.h>
 
@@ -42,8 +43,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_hudson[6];
-extern unsigned long sbdn_hudson;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -68,8 +67,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_hudson[0];
-	pirq->rtr_devfn = ((sbdn_hudson + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -84,7 +83,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_hudson[0], ((sbdn_hudson + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c b/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c
index 8bc5ddf811..cc3ffbbeb6 100644
--- a/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c
+++ b/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c
@@ -36,17 +36,6 @@ u8 bus_sb800[6];
 u32 apicid_sb800;
 u32 apicver_sb800;
 
-/**
- * Here you only need to set value in pci1234 for HT-IO that could be
- * installed or not. You may need to preset pci1234 for HTIO board,
- * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
- */
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
-
 
 void get_bus_conf(void)
 {
@@ -55,22 +44,19 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
-//	bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/jetway/nf81-t56n-lf/irq_tables.c b/src/mainboard/jetway/nf81-t56n-lf/irq_tables.c
index 5205a46289..94a69f9b7c 100644
--- a/src/mainboard/jetway/nf81-t56n-lf/irq_tables.c
+++ b/src/mainboard/jetway/nf81-t56n-lf/irq_tables.c
@@ -21,6 +21,7 @@
 #include <arch/pirq_routing.h>
 #include <console/console.h>
 #include <cpu/amd/amdfam14.h>
+#include <device/pci_def.h>
 #include <string.h>
 #include <stdint.h>
 
@@ -43,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -70,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -86,7 +85,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* PCI Bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/lippert/frontrunner-af/get_bus_conf.c b/src/mainboard/lippert/frontrunner-af/get_bus_conf.c
index e736e54854..42270af68a 100644
--- a/src/mainboard/lippert/frontrunner-af/get_bus_conf.c
+++ b/src/mainboard/lippert/frontrunner-af/get_bus_conf.c
@@ -33,17 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
-
 
 void get_bus_conf(void)
 {
@@ -52,23 +41,20 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
 
-//	bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/lippert/frontrunner-af/irq_tables.c b/src/mainboard/lippert/frontrunner-af/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/lippert/frontrunner-af/irq_tables.c
+++ b/src/mainboard/lippert/frontrunner-af/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/lippert/toucan-af/get_bus_conf.c b/src/mainboard/lippert/toucan-af/get_bus_conf.c
index 20dc3aea12..eb40c541ad 100644
--- a/src/mainboard/lippert/toucan-af/get_bus_conf.c
+++ b/src/mainboard/lippert/toucan-af/get_bus_conf.c
@@ -33,16 +33,6 @@
 u8 bus_sb800[6];
 u32 apicid_sb800;
 
-/*
-* Here you only need to set value in pci1234 for HT-IO that could be installed or not
-* You may need to preset pci1234 for HTIO board,
-* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
-*/
-u32 pci1234x[] = {
-	0x0000ff0,
-};
-
-u32 sbdn_sb800;
 
 void get_bus_conf(void)
 {
@@ -51,22 +41,19 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_sb800 = 0;
 
 	memset(bus_sb800, 0, sizeof(bus_sb800));
 
-//	bus_sb800[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-	bus_sb800[0] = (pci1234x[0] >> 16) & 0xff;
 
 	/* sb800 */
-	dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 	}
 
 	for (i = 0; i < 4; i++) {
-		dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, i));
+		dev = dev_find_slot(0, PCI_DEVFN(0x14, i));
 		if (dev) {
 			bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 		}
diff --git a/src/mainboard/lippert/toucan-af/irq_tables.c b/src/mainboard/lippert/toucan-af/irq_tables.c
index 840e7b1bb5..12a64a8bcd 100644
--- a/src/mainboard/lippert/toucan-af/irq_tables.c
+++ b/src/mainboard/lippert/toucan-af/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sb800[6];
-extern unsigned long sbdn_sb800;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sb800[0];
-	pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/supermicro/h8qgi/get_bus_conf.c b/src/mainboard/supermicro/h8qgi/get_bus_conf.c
index 549334e793..8531e697a9 100644
--- a/src/mainboard/supermicro/h8qgi/get_bus_conf.c
+++ b/src/mainboard/supermicro/h8qgi/get_bus_conf.c
@@ -31,14 +31,12 @@
  * and acpi_tables busnum is default.
  */
 u8 bus_sp5100[2];
-u32 sbdn_sp5100;
 
 void get_bus_conf(void)
 {
 	device_t dev;
 	int i;
 
-	sbdn_sp5100 = 0;
 
 	for (i = 0; i < ARRAY_SIZE(bus_sp5100); i++) {
 		bus_sp5100[i] = 0;
@@ -47,7 +45,7 @@ void get_bus_conf(void)
 	bus_sp5100[0] = 0;
 
 	/* sp5100 */
-	dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(sbdn_sp5100 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
diff --git a/src/mainboard/supermicro/h8qgi/irq_tables.c b/src/mainboard/supermicro/h8qgi/irq_tables.c
index 6b1e226007..0af225c9dd 100644
--- a/src/mainboard/supermicro/h8qgi/irq_tables.c
+++ b/src/mainboard/supermicro/h8qgi/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sp5100[2];
-extern unsigned long sbdn_sp5100;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sp5100[0];
-	pirq->rtr_devfn = ((sbdn_sp5100 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sp5100[0], ((sbdn_sp5100 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/supermicro/h8qgi/mptable.c b/src/mainboard/supermicro/h8qgi/mptable.c
index 754ed549bf..3793212711 100644
--- a/src/mainboard/supermicro/h8qgi/mptable.c
+++ b/src/mainboard/supermicro/h8qgi/mptable.c
@@ -29,7 +29,6 @@
 #include <cpu/amd/amdfam10_sysconf.h>
 
 extern u8 bus_sp5100[2];
-extern u32 sbdn_sp5100;
 
 static void *smp_write_config_table(void *v)
 {
@@ -59,7 +58,7 @@ static void *smp_write_config_table(void *v)
 		apicid_sp5100 = CONFIG_MAX_CPUS + 1;
 	apicid_sr5650 = apicid_sp5100 + 1;
 
-	dev = dev_find_slot(0, PCI_DEVFN(sbdn_sp5100 + 0x14, 0));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
 	if (dev) {
 		/* Set SP5100 IOAPIC ID */
 		dword = pci_read_config32(dev, 0x74) & 0xfffffff0;
diff --git a/src/mainboard/supermicro/h8scm/get_bus_conf.c b/src/mainboard/supermicro/h8scm/get_bus_conf.c
index 28c4bf7924..46ed054a26 100644
--- a/src/mainboard/supermicro/h8scm/get_bus_conf.c
+++ b/src/mainboard/supermicro/h8scm/get_bus_conf.c
@@ -31,14 +31,12 @@
  * and acpi_tables busnum is default.
  */
 u8 bus_sp5100[2];
-u32 sbdn_sp5100;
 
 void get_bus_conf(void)
 {
 	device_t dev;
 	int i;
 
-	sbdn_sp5100 = 0;
 
 	for (i = 0; i < 0; i++) {
 		bus_sp5100[i] = 0;
@@ -47,7 +45,7 @@ void get_bus_conf(void)
 	bus_sp5100[0] = 0;
 
 	/* sp5100 */
-	dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(sbdn_sp5100 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
diff --git a/src/mainboard/supermicro/h8scm/irq_tables.c b/src/mainboard/supermicro/h8scm/irq_tables.c
index 9770e6d848..8f727563a7 100644
--- a/src/mainboard/supermicro/h8scm/irq_tables.c
+++ b/src/mainboard/supermicro/h8scm/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sp5100[2];
-extern unsigned long sbdn_sp5100;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sp5100[0];
-	pirq->rtr_devfn = ((sbdn_sp5100 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -87,7 +85,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sp5100[0], ((sbdn_sp5100 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/supermicro/h8scm/mptable.c b/src/mainboard/supermicro/h8scm/mptable.c
index 754ed549bf..3793212711 100644
--- a/src/mainboard/supermicro/h8scm/mptable.c
+++ b/src/mainboard/supermicro/h8scm/mptable.c
@@ -29,7 +29,6 @@
 #include <cpu/amd/amdfam10_sysconf.h>
 
 extern u8 bus_sp5100[2];
-extern u32 sbdn_sp5100;
 
 static void *smp_write_config_table(void *v)
 {
@@ -59,7 +58,7 @@ static void *smp_write_config_table(void *v)
 		apicid_sp5100 = CONFIG_MAX_CPUS + 1;
 	apicid_sr5650 = apicid_sp5100 + 1;
 
-	dev = dev_find_slot(0, PCI_DEVFN(sbdn_sp5100 + 0x14, 0));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
 	if (dev) {
 		/* Set SP5100 IOAPIC ID */
 		dword = pci_read_config32(dev, 0x74) & 0xfffffff0;
diff --git a/src/mainboard/tyan/s8226/get_bus_conf.c b/src/mainboard/tyan/s8226/get_bus_conf.c
index 7a6876b880..087c04206a 100644
--- a/src/mainboard/tyan/s8226/get_bus_conf.c
+++ b/src/mainboard/tyan/s8226/get_bus_conf.c
@@ -30,7 +30,6 @@
  * and acpi_tables busnum is default.
  */
 u8 bus_sp5100[2];
-u32 sbdn_sp5100;
 
 void get_bus_conf(void);
 
@@ -39,7 +38,6 @@ void get_bus_conf(void)
 	device_t dev;
 	int i;
 
-	sbdn_sp5100 = 0;
 
 	for (i = 0; i < 0; i++) {
 		bus_sp5100[i] = 0;
@@ -48,7 +46,7 @@ void get_bus_conf(void)
 	bus_sp5100[0] = 0;
 
 	/* sp5100 */
-	dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(sbdn_sp5100 + 0x14, 4));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
 
 	if (dev) {
 		bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
diff --git a/src/mainboard/tyan/s8226/irq_tables.c b/src/mainboard/tyan/s8226/irq_tables.c
index 6b1e226007..0af225c9dd 100644
--- a/src/mainboard/tyan/s8226/irq_tables.c
+++ b/src/mainboard/tyan/s8226/irq_tables.c
@@ -44,8 +44,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->slot = slot;
 	pirq_info->rfu = rfu;
 }
-extern u8 bus_sp5100[2];
-extern unsigned long sbdn_sp5100;
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -71,8 +69,8 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->signature = PIRQ_SIGNATURE;
 	pirq->version = PIRQ_VERSION;
 
-	pirq->rtr_bus = bus_sp5100[0];
-	pirq->rtr_devfn = ((sbdn_sp5100 + 0x14) << 3) | 4;
+	pirq->rtr_bus = 0;
+	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
 
@@ -88,7 +86,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sp5100[0], ((sbdn_sp5100 + 0x14) << 3) | 4,
+	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
 			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
 			0);
 	pirq_info++;
diff --git a/src/mainboard/tyan/s8226/mptable.c b/src/mainboard/tyan/s8226/mptable.c
index 6a12f2b821..3793212711 100644
--- a/src/mainboard/tyan/s8226/mptable.c
+++ b/src/mainboard/tyan/s8226/mptable.c
@@ -29,8 +29,6 @@
 #include <cpu/amd/amdfam10_sysconf.h>
 
 extern u8 bus_sp5100[2];
-extern u32 sbdn_sr5650;
-extern u32 sbdn_sp5100;
 
 static void *smp_write_config_table(void *v)
 {
@@ -60,7 +58,7 @@ static void *smp_write_config_table(void *v)
 		apicid_sp5100 = CONFIG_MAX_CPUS + 1;
 	apicid_sr5650 = apicid_sp5100 + 1;
 
-	dev = dev_find_slot(0, PCI_DEVFN(sbdn_sp5100 + 0x14, 0));
+	dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
 	if (dev) {
 		/* Set SP5100 IOAPIC ID */
 		dword = pci_read_config32(dev, 0x74) & 0xfffffff0;