use hcdn to simplify the mptable.c and irqtable.c --- patch fro issue

48


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2136 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

28 files changed, 1769 insertions, 1749 deletions

diff --git a/src/mainboard/amd/serengeti_leopard/Config.lb b/src/mainboard/amd/serengeti_leopard/Config.lb
index 1be3cb6eb9..b6ee7180ec 100644
--- a/src/mainboard/amd/serengeti_leopard/Config.lb
+++ b/src/mainboard/amd/serengeti_leopard/Config.lb
@@ -53,53 +53,68 @@ if HAVE_PIRQ_TABLE
 	object irq_tables.o 
 end
 
+#if HAVE_ACPI_TABLES
+# 	object acpi_tables.o
+#	object fadt.o
+#	if K8_SB_HT_CHAIN_ON_BUS0
+#		object dsdt_bus0.o
+#	else
+#		object dsdt.o
+#	end
+#	object ssdt.o
+#	if ACPI_SSDTX_NUM
+#                if K8_SB_HT_CHAIN_ON_BUS0
+#                 object ssdt2_bus0.o
+#                else
+#                 object ssdt2.o
+#                end
+#	end
+#end
+
 if HAVE_ACPI_TABLES
- 	object acpi_tables.o
-	object fadt.o
-	if K8_SB_HT_CHAIN_ON_BUS0
-		makerule dsdt.c
-			depends "$(MAINBOARD)/dx_bus0/dsdt_lb.dsl"
-			action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx_bus0/dsdt_lb.dsl"
-			action  "mv dsdt_lb.hex dsdt.c"
-		end
-		object ./dsdt.o
-	else
-		makerule dsdt.c
-			depends "$(MAINBOARD)/dx/dsdt_lb.dsl"
-			action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx/dsdt_lb.dsl"
-			action  "mv dsdt_lb.hex dsdt.c"
-		end
-		object ./dsdt.o
+        object acpi_tables.o
+        object fadt.o
+        if K8_SB_HT_CHAIN_ON_BUS0
+                makerule dsdt.c
+                        depends "$(MAINBOARD)/dx_bus0/dsdt_lb.dsl"
+                        action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx_bus0/dsdt_lb.dsl"
+                        action  "mv dsdt_lb.hex dsdt.c"
+                end
+        else
+                makerule dsdt.c
+                        depends "$(MAINBOARD)/dx/dsdt_lb.dsl"
+                        action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx/dsdt_lb.dsl"
+                        action  "mv dsdt_lb.hex dsdt.c"
+                end
 	end
+        object ./dsdt.o
 
-	makerule ssdt.c
-		depends "$(MAINBOARD)/ssdt_lb_x.dsl"
-		action  "/usr/sbin/iasl -tc $(MAINBOARD)/ssdt_lb_x.dsl"
-		action  "perl -pi -e 's/AmlCode/AmlCode_ssdt/g' ssdt_lb_x.hex"
-		action  "mv ssdt_lb_x.hex ssdt.c"
-	end
-	object ./ssdt.o
-	
-	if ACPI_SSDTX_NUM
-	    if K8_SB_HT_CHAIN_ON_BUS0
-		makerule ssdt2.c
-			depends "$(MAINBOARD)/dx/pci2.asl"
-			action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx/pci2.asl"
-			action  "perl -pi -e 's/AmlCode/AmlCode_ssdt2/g' pci2.hex"
-			action  "mv pci2.hex ssdt2.c"
-		end
-		object ./ssdt2.o
-	    else
-		makerule ssdt2.c
-			depends "$(MAINBOARD)/dx_bus0/pci2.asl"
-			action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx_bus0/pci2.asl"
-			action  "perl -pi -e 's/AmlCode/AmlCode_ssdt2/g' pci2.hex"
-			action  "mv pci2.hex ssdt2.c"
-	    	end
-
-		object ./ssdt2.o
+        makerule ssdt.c
+                depends "$(MAINBOARD)/ssdt_lb_x.dsl"
+                action  "/usr/sbin/iasl -tc $(MAINBOARD)/ssdt_lb_x.dsl"
+                action  "perl -pi -e 's/AmlCode/AmlCode_ssdt/g' ssdt_lb_x.hex"
+                action  "mv ssdt_lb_x.hex ssdt.c"
+        end
+        object ./ssdt.o
+
+        if ACPI_SSDTX_NUM
+            if K8_SB_HT_CHAIN_ON_BUS0
+                makerule ssdt2.c
+                        depends "$(MAINBOARD)/dx/pci2.asl"
+                        action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx/pci2.asl"
+                        action  "perl -pi -e 's/AmlCode/AmlCode_ssdt2/g' pci2.hex"
+                        action  "mv pci2.hex ssdt2.c"
+                end
+            else
+                makerule ssdt2.c
+                        depends "$(MAINBOARD)/dx_bus0/pci2.asl"
+                        action  "/usr/sbin/iasl -tc $(MAINBOARD)/dx_bus0/pci2.asl"
+                        action  "perl -pi -e 's/AmlCode/AmlCode_ssdt2/g' pci2.hex"
+                        action  "mv pci2.hex ssdt2.c"
+                end
 	    end
-	end
+            object ./ssdt2.o
+        end
 end
 
 object reset.o
diff --git a/src/mainboard/amd/serengeti_leopard/get_bus_conf.c b/src/mainboard/amd/serengeti_leopard/get_bus_conf.c
index aba931bb71..bfdbda6b70 100644
--- a/src/mainboard/amd/serengeti_leopard/get_bus_conf.c
+++ b/src/mainboard/amd/serengeti_leopard/get_bus_conf.c
@@ -48,45 +48,8 @@ unsigned hcdn[] =
 //        0x20202020,
 //        0x20202020,
 };
-
-
-static unsigned get_sbdn(void)
-{
-        device_t dev;
-#if 0
-#if HT_CHAIN_END_UNITID_BASE < HT_CHAIN_UNITID_BASE
-        unsigned sbdn = 1 + HT_CHAIN_END_UNITID_BASE -1;
-#else
-        unsigned sbdn = 3 + HT_CHAIN_UNITID_BASE - 1; // 8111 unit id base is 3 if 8131 before it
-#endif
-	
-	sbd3 = 1 + HT_CHAIN_UNITID_BASE - 1;	
-
-#if SB_HT_CHAIN_UNITID_OFFSET_ONLY == 1
-	sbd5 = 1;
-#else
-	sbd5 = 1 + HT_CHAIN_UNITID_BASE - 1;
-#endif
-
-        dev = dev_find_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_PCI , 0); //FIXME: if 8111 PCI is disabled?
-        if(dev)  {
-                sbdn = (dev->path.u.pci.devfn >> 3) & 0x1f;
-        }
-
-        dev = dev_find_device(PCI_VENDOR_ID_AMD, 0x7458 , 0); //FIXME: if 8131 PCI is disabled?
-        if(dev)  {
-                sbd3 = (dev->path.u.pci.devfn >> 3) & 0x1f;
-        }
-
-        dev = dev_find_device(PCI_VENDOR_ID_AMD, 0x7454 , 0); //FIXME: if 8151 PCI is disabled?
-        if(dev)  {
-                sbd5 = (dev->path.u.pci.devfn >> 3) & 0x1f;
-        }
-#endif
-	sbdn = (hcdn[0] >> 8) & 0xff; // second byte
-
-        return sbdn;
-}
+unsigned sbdn3;
+unsigned sbdn5;
 
 extern void get_sblk_pci1234(void);
 
@@ -107,7 +70,9 @@ void get_bus_conf(void)
 	
 	get_sblk_pci1234();
 	
-	sbdn = get_sbdn();
+	sbdn = (hcdn[0] >> 8) & 0xff;
+	sbdn3 = hcdn[0] & 0xff;
+	sbdn5 = hcdn[1] & 0xff;
 
 //	bus_8132_0 = node_link_to_bus(0, sblk);
 	bus_8132_0 = (pci1234[0] >> 16) & 0xff;
@@ -128,7 +93,7 @@ void get_bus_conf(void)
         }
 
         /* 8132-1 */
-        dev = dev_find_slot(bus_8132_0, PCI_DEVFN((hcdn[0]&0xff),0));
+        dev = dev_find_slot(bus_8132_0, PCI_DEVFN(sbdn3,0));
         if (dev) {
                 bus_8132_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 #if HT_CHAIN_END_UNITID_BASE < HT_CHAIN_UNITID_BASE
@@ -142,7 +107,7 @@ void get_bus_conf(void)
         }
 
         /* 8132-2 */
-        dev = dev_find_slot(bus_8132_0, PCI_DEVFN((hcdn[0] & 0xff)+1,0));
+        dev = dev_find_slot(bus_8132_0, PCI_DEVFN(sbdn3+1,0));
         if (dev) {
                 bus_8132_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
         }
@@ -152,10 +117,9 @@ void get_bus_conf(void)
 
         /* HT chain 1 */
 	if((pci1234[1] & 0x1) == 1) {
-//                bus_8151_0 = node_link_to_bus( (pci1234[1]>>4) & 0xf, (pci1234[1]>>8) & 0xf);
 		bus_8151_0 = (pci1234[1] >> 16) & 0xff;
                 /* 8151 */
-		dev = dev_find_slot(bus_8151_0, PCI_DEVFN((hcdn[1] & 0xff)+1, 0));
+		dev = dev_find_slot(bus_8151_0, PCI_DEVFN(sbdn5+1, 0));
 
               	if (dev) {
                        	bus_8151_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
diff --git a/src/mainboard/amd/serengeti_leopard/irq_tables.c b/src/mainboard/amd/serengeti_leopard/irq_tables.c
index e9c78b3ce0..5a6f34e744 100644
--- a/src/mainboard/amd/serengeti_leopard/irq_tables.c
+++ b/src/mainboard/amd/serengeti_leopard/irq_tables.c
@@ -10,33 +10,6 @@
 #include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*11,        /* there can be total 11 devices on the bus */
-	3,           /* Where the interrupt router lies (bus) */
-	(4<<3)|3,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x1022,         /* Vendor */
-	0x746b,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-	0x42,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-	{
-		{3,(4<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x6,0, {{0, 0}, {0, 0}, {0, 0}, {0x4, 0xdef8}}, 0, 0},
-		{0x1,0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0, 0}, {0, 0}}, 0x0, 0},
-		{0x5,(3<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x5,(6<<3)|0, {{0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}}, 0x2, 0},
-		{0x4,(8<<3)|0, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x3, 0},
-		{0x4,(7<<3)|0, {{0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}}, 0x4, 0},
-		{0x6,(0x0a<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x5, 0},
-		{0x4,(9<<3)|0, {{0x1, 0xdef8}, {2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0b<<3)|0, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0c<<3)|0, {{0x4, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
-
 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
 		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
 		uint8_t slot, uint8_t rfu)
@@ -63,8 +36,12 @@ extern  unsigned char bus_8111_1;
 extern  unsigned char bus_8151_0;
 extern  unsigned char bus_8151_1;
 
+extern unsigned pci1234[];
+
 extern  unsigned sbdn;
 extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdn5;
 
 extern void get_bus_conf(void);
 
@@ -112,10 +89,13 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	write_pirq_info(pirq_info, bus_8111_0, ((sbdn+1)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 	pirq_info++; slot_num++;
 //pcix bridge
-//        write_pirq_info(pirq_info, bus_8132_0, (sbd3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+//        write_pirq_info(pirq_info, bus_8132_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 //        pirq_info++; slot_num++;
-//agp bridge
-        write_pirq_info(pirq_info, bus_8151_0, ((hcdn[1] & 0xff)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0); 
+	
+	if(pci1234[1] & 0xf) {
+	//agp bridge
+        	write_pirq_info(pirq_info, bus_8151_0, (sbdn5<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0); 
+	}	
 
         pirq_info++; slot_num++;
              
diff --git a/src/mainboard/amd/serengeti_leopard/mptable.c b/src/mainboard/amd/serengeti_leopard/mptable.c
index e210d8b683..16bb74ea45 100644
--- a/src/mainboard/amd/serengeti_leopard/mptable.c
+++ b/src/mainboard/amd/serengeti_leopard/mptable.c
@@ -19,8 +19,11 @@ extern  unsigned apicid_8111;
 extern  unsigned apicid_8132_1;
 extern  unsigned apicid_8132_2;
 
+extern unsigned pci1234[];
 extern  unsigned sbdn;
 extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdn5;
 
 extern void get_bus_conf(void);
 
@@ -32,6 +35,7 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
+	int i;
 
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
         memset(mc, 0, sizeof(*mc));
@@ -66,14 +70,14 @@ void *smp_write_config_table(void *v)
         {
                 device_t dev;
 		struct resource *res;
-                dev = dev_find_slot(bus_8132_0, PCI_DEVFN((hcdn[0]&0xff), 1));
+                dev = dev_find_slot(bus_8132_0, PCI_DEVFN(sbdn3, 1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				smp_write_ioapic(mc, apicid_8132_1, 0x11, res->base);
 			}
                 }
-                dev = dev_find_slot(bus_8132_0, PCI_DEVFN((hcdn[0]&0xff)+1, 1));
+                dev = dev_find_slot(bus_8132_0, PCI_DEVFN(sbdn3+1, 1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
@@ -103,32 +107,34 @@ void *smp_write_config_table(void *v)
 // Onboard AMD USB
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0<<2)|3, apicid_8111, 0x13);
 
-//  Slot AGP
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8151_1, 0x0, apicid_8111, 0x11);
+	if(pci1234[1] & 0xf) {
+	//  Slot AGP
+		smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8151_1, 0x0, apicid_8111, 0x11);
+	}	
 
 //Slot 3  PCI 32
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|0, apicid_8111, 0x11);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|1, apicid_8111, 0x12);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|2, apicid_8111, 0x13); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|3, apicid_8111, 0x10); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|i, apicid_8111, 0x10 + (1+i)%4); //16
+        }
+
 
 //Slot 4 PCI 32
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (4<<2)|0, apicid_8111, 0x10);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (4<<2)|1, apicid_8111, 0x11);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (4<<2)|2, apicid_8111, 0x12); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (4<<2)|3, apicid_8111, 0x13); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (4<<2)|i, apicid_8111, 0x10 + (0+i)%4); //16
+        }
+
 
 //Slot 1 PCI-X 133/100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_2, (1<<2)|0, apicid_8132_2, 0x0);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_2, (1<<2)|1, apicid_8132_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_2, (1<<2)|2, apicid_8132_2, 0x2); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_2, (1<<2)|3, apicid_8132_2, 0x3); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_2, (1<<2)|i, apicid_8132_2, (0+i)%4); //
+        }
+
 
 //Slot 2 PCI-X 133/100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_1, (1<<2)|0, apicid_8132_1, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_1, (1<<2)|1, apicid_8132_1, 0x2);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_1, (1<<2)|2, apicid_8132_1, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_1, (1<<2)|3, apicid_8132_1, 0x0);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8132_1, (1<<2)|i, apicid_8132_1, (1+i)%4); //25
+        }
+
 
 /*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
 	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x0);
diff --git a/src/mainboard/tyan/s2881/Config.lb b/src/mainboard/tyan/s2881/Config.lb
index 8f953abb4c..3b0cd33dd7 100644
--- a/src/mainboard/tyan/s2881/Config.lb
+++ b/src/mainboard/tyan/s2881/Config.lb
@@ -41,7 +41,7 @@ arch i386 end
 driver mainboard.o
 
 #dir /drivers/si/3114
-
+object get_bus_conf.o
 if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
 object reset.o
diff --git a/src/mainboard/tyan/s2881/get_bus_conf.c b/src/mainboard/tyan/s2881/get_bus_conf.c
new file mode 100644
index 0000000000..01fd2e1a5f
--- /dev/null
+++ b/src/mainboard/tyan/s2881/get_bus_conf.c
@@ -0,0 +1,123 @@
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <string.h>
+#include <stdint.h>
+#if CONFIG_LOGICAL_CPUS==1
+#include <cpu/amd/dualcore.h>
+#endif
+
+
+// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
+//busnum is default
+unsigned char bus_isa = 5 ;
+unsigned char bus_8131_0 = 1;
+unsigned char bus_8131_1 = 2;
+unsigned char bus_8131_2 = 3;
+unsigned char bus_8111_0 = 1;
+unsigned char bus_8111_1 = 4;
+unsigned apicid_8111 ;
+unsigned apicid_8131_1;
+unsigned apicid_8131_2;
+
+unsigned sblk;
+unsigned pci1234[] = 
+{        //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
+        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0
+};
+unsigned hc_possible_num;
+unsigned sbdn;
+unsigned hcdn[] = 
+{ //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
+	0x20202020,
+//	0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+};
+unsigned sbdn3;
+
+extern void get_sblk_pci1234(void);
+
+static unsigned get_bus_conf_done = 0;
+
+void get_bus_conf(void)
+{
+
+	unsigned apicid_base;
+
+        device_t dev;
+
+	if(get_bus_conf_done==1) return; //do it only once
+
+	get_bus_conf_done = 1;
+
+	hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);	
+	
+	get_sblk_pci1234();
+	
+	sbdn = (hcdn[0] >> 8) & 0xff;
+	sbdn3 = hcdn[0] & 0xff;
+
+	bus_8131_0 = (pci1234[0] >> 16) & 0xff;
+	bus_8111_0 = bus_8131_0;
+
+                /* 8111 */
+        dev = dev_find_slot(bus_8111_0, PCI_DEVFN(sbdn,0));
+        if (dev) {
+                bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if HT_CHAIN_END_UNITID_BASE >= HT_CHAIN_UNITID_BASE
+                bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                bus_isa++;
+//		printk_debug("bus_isa=%d\n",bus_isa);
+#endif
+        }
+	else {
+                printk_debug("ERROR - could not find PCI %02x:03.0, using defaults\n", bus_8111_0);
+        }
+
+        /* 8131-1 */
+        dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+        if (dev) {
+                bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if HT_CHAIN_END_UNITID_BASE < HT_CHAIN_UNITID_BASE
+                bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                bus_isa++;
+//              printk_debug("bus_isa=%d\n",bus_isa);
+#endif
+        }
+        else {
+                printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
+        }
+
+        /* 8132-2 */
+        dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
+        if (dev) {
+                bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+        }
+        else {
+                printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
+        }
+
+
+/*I/O APICs:	APIC ID	Version	State		Address*/
+#if CONFIG_LOGICAL_CPUS==1
+	apicid_base = get_apicid_base(3);
+#else 
+	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
+#endif
+	apicid_8111 = apicid_base+0;
+	apicid_8131_1 = apicid_base+1;
+	apicid_8131_2 = apicid_base+2;
+}
diff --git a/src/mainboard/tyan/s2881/irq_tables.c b/src/mainboard/tyan/s2881/irq_tables.c
index 028c279ba0..ad4785b899 100644
--- a/src/mainboard/tyan/s2881/irq_tables.c
+++ b/src/mainboard/tyan/s2881/irq_tables.c
@@ -4,34 +4,104 @@
 
    Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
 */
-
+#include <console/console.h>
+#include <device/pci.h>
+#include <string.h>
+#include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*9,        /* there can be total 9 devices on the bus */
-	1,           /* Where the interrupt router lies (bus) */
-	(4<<3)|3,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x1022,         /* Vendor */
-	0x746b,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-	0x66,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-	{
-		{1,(4<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x4,0, {{0, 0}, {0, 0}, {0, 0}, {0x4, 0xdef8}}, 0, 0},
-		{0x3,0x18, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x2,0x38, {{0x3, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x2,0x40, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x4, 0},
-		{0x4,0x30, {{0x3, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x2,0x48, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x2,0x50, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x4,0x28, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
+static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
+		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
+		uint8_t slot, uint8_t rfu)
+{
+        pirq_info->bus = bus; 
+        pirq_info->devfn = devfn;
+                pirq_info->irq[0].link = link0;
+                pirq_info->irq[0].bitmap = bitmap0;
+                pirq_info->irq[1].link = link1;
+                pirq_info->irq[1].bitmap = bitmap1;
+                pirq_info->irq[2].link = link2;
+                pirq_info->irq[2].bitmap = bitmap2;
+                pirq_info->irq[3].link = link3;
+                pirq_info->irq[3].bitmap = bitmap3;
+        pirq_info->slot = slot;
+        pirq_info->rfu = rfu;
+}
+
+extern  unsigned char bus_8131_0;
+extern  unsigned char bus_8131_1;
+extern  unsigned char bus_8131_2;
+extern  unsigned char bus_8111_0;
+extern  unsigned char bus_8111_1;
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+
+extern void get_bus_conf(void);
+
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
-        return copy_pirq_routing_table(addr);
+
+	struct irq_routing_table *pirq;
+	struct irq_info *pirq_info;
+	unsigned slot_num;
+	uint8_t *v;
+
+        uint8_t sum=0;
+        int i;
+
+	get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
+
+        /* Align the table to be 16 byte aligned. */
+        addr += 15;
+        addr &= ~15;
+
+        /* This table must be betweeen 0xf0000 & 0x100000 */
+        printk_info("Writing IRQ routing tables to 0x%x...", addr);
+
+	pirq = (void *)(addr);
+	v = (uint8_t *)(addr);
+	
+	pirq->signature = PIRQ_SIGNATURE;
+	pirq->version  = PIRQ_VERSION;
+	
+	pirq->rtr_bus = bus_8111_0;
+	pirq->rtr_devfn = ((sbdn+1)<<3)|0;
+
+	pirq->exclusive_irqs = 0;
+	
+	pirq->rtr_vendor = 0x1022;
+	pirq->rtr_device = 0x746b;
+
+	pirq->miniport_data = 0;
+
+	memset(pirq->rfu, 0, sizeof(pirq->rfu));
+	
+	pirq_info = (void *) ( &pirq->checksum + 1);
+	slot_num = 0;
+//pci bridge
+	write_pirq_info(pirq_info, bus_8111_0, ((sbdn+1)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+	pirq_info++; slot_num++;
+//pcix bridge
+//        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+//        pirq_info++; slot_num++;
+
+        pirq_info++; slot_num++;
+             
+	pirq->size = 32 + 16 * slot_num; 
+
+        for (i = 0; i < pirq->size; i++)
+                sum += v[i];	
+
+	sum = pirq->checksum - sum;
+
+        if (sum != pirq->checksum) {
+                pirq->checksum = sum;
+        }
+
+	printk_info("done.\n");
+
+	return	(unsigned long) pirq_info;
+
 }
diff --git a/src/mainboard/tyan/s2881/mptable.c b/src/mainboard/tyan/s2881/mptable.c
index e5804b1d5a..a2526c954f 100644
--- a/src/mainboard/tyan/s2881/mptable.c
+++ b/src/mainboard/tyan/s2881/mptable.c
@@ -3,44 +3,24 @@
 #include <device/pci.h>
 #include <string.h>
 #include <stdint.h>
-#if CONFIG_LOGICAL_CPUS==1
-#include <cpu/amd/dualcore.h>
-#endif
 
+extern  unsigned char bus_isa;
+extern  unsigned char bus_8131_0;
+extern  unsigned char bus_8131_1;
+extern  unsigned char bus_8131_2;
+extern  unsigned char bus_8111_0;
+extern  unsigned char bus_8111_1;
+extern  unsigned apicid_8111;
+extern  unsigned apicid_8131_1;
+extern  unsigned apicid_8131_2;
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+
+extern void get_bus_conf(void);
 
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
 
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
 
 void *smp_write_config_table(void *v)
 {
@@ -50,15 +30,8 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
-        unsigned char bus_isa;
-	unsigned char bus_chain_0;
-        unsigned char bus_8131_1;
-        unsigned char bus_8131_2;
-        unsigned char bus_8111_1;
-        unsigned apicid_base;
-        unsigned apicid_8111;
-        unsigned apicid_8131_1;
-        unsigned apicid_8131_2;
+
+	int i;
   
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
         memset(mc, 0, sizeof(*mc));
@@ -79,84 +52,30 @@ void *smp_write_config_table(void *v)
 
         smp_write_processors(mc);
 
+	get_bus_conf();
        
-        {
-                device_t dev;
-
-                /* HT chain 0 */
-                bus_chain_0 = node_link_to_bus(0, 2);
-                if (bus_chain_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_chain_0 = 1;
-                }
-                
-                /* 8111 */
-                dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x03,0));
-                if (dev) {
-                        bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_isa++; 
-                }       
-                else {
-                        printk_debug("ERROR - could not find PCI 1:03.0, using defaults\n");
-
-                        bus_8111_1 = 4;
-                        bus_isa = 5;
-                }
-                /* 8131-1 */
-                dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:01.0, using defaults\n");
-
-                        bus_8131_1 = 2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:02.0, using defaults\n");
-
-                        bus_8131_2 = 3;
-                }
-        }
-
-	/*Bus:          Bus ID  Type*/
+/*Bus:          Bus ID  Type*/
         /* define bus and isa numbers */
-        for (bus_num = 0; bus_num < bus_isa; bus_num++) {
+        for(bus_num = 0; bus_num < bus_isa; bus_num++) {
                 smp_write_bus(mc, bus_num, "PCI   ");
         }
         smp_write_bus(mc, bus_isa, "ISA   ");
 
 	
-	/*I/O APICs:	APIC ID	Version	State		Address*/
-#if CONFIG_LOGICAL_CPUS
-	apicid_base = get_apicid_base(3);
-#else
-        apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
-#endif
-        apicid_8111 = apicid_base+0; 
-        apicid_8131_1 = apicid_base+1;
-        apicid_8131_2 = apicid_base+2;
-
+/*I/O APICs:	APIC ID	Version	State		Address*/
 	smp_write_ioapic(mc, apicid_8111, 0x11, 0xfec00000);
         {
                 device_t dev;
                 struct resource *res;
-                dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x1,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,1));
                 if (dev) {
                         res = find_resource(dev, PCI_BASE_ADDRESS_0);
                         if (res) {
                                 smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
                         }
                 }
-                dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x2,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,1));
                 if (dev) {
                         res = find_resource(dev, PCI_BASE_ADDRESS_0);
                         if (res) {
@@ -166,8 +85,8 @@ void *smp_write_config_table(void *v)
 
 	}
   
-	/*I/O Ints:	     Type	Polarity         Trigger	       Bus ID	IRQ     APIC ID	  PIN# */
-	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, apicid_8111, 0x0);
+/*I/O Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#
+*/	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, apicid_8111, 0x0);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x1, apicid_8111, 0x1);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, apicid_8111, 0x2);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x3, apicid_8111, 0x3);
@@ -179,48 +98,46 @@ void *smp_write_config_table(void *v)
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xd, apicid_8111, 0xd);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xe, apicid_8111, 0xe);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xf, apicid_8111, 0xf);
+	
+//8111 LPC ????
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_0, ((sbdn+1)<<2)|0, apicid_8111, 0x13);
+
+//On Board AMD USB ???
+	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0<<2)|3, apicid_8111, 0x13);
+
+//On Board ATI Display Adapter
+	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (6<<2)|0, apicid_8111, 0x12);
+
+//On Board SI Serial ATA
+	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (5<<2)|0, apicid_8111, 0x11);
+
+//Slot 3 PCIX 100/66
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|i, apicid_8131_1, (3+i)%4); //27
+        }
+
+//On Board NIC and adaptec scsi
+        for(i=0;i<2;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (9<<2)|i, apicid_8131_1, (0+i)%4); //24
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|i, apicid_8131_1, (0+i)%4); //24
+        }
+
+//Slot 1 PCI-X 133/100/66 or Side 1 on raiser card
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|i, apicid_8131_2, (0+i)%4); //28
+        }
+
+        //Slot 1 PCI-X 133/100/66, Side 2 on raiser card
+        //Fix ME, IRQ Pins?
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|i, apicid_8131_2, (1+i)%4); //28
+        }
+
+
 
-	/* PCI Ints:	     Type    Trigger              Polarity                 Bus ID     PCIDEVNUM|IRQ  APIC ID PIN# */	
-	//8111 LPC ????
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_chain_0,      (4<<2)|0, apicid_8111, 0x13);
-
-	//On Board AMD USB ???
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1,       (0<<2)|3, apicid_8111, 0x13);
-
-	//On Board ATI Display Adapter
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1,       (6<<2)|0, apicid_8111, 0x12);
-
-	//On Board SI Serial ATA
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1,       (5<<2)|0, apicid_8111, 0x11);
-
-	//Slot 3 PCIX 100/66
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (8<<2)|0, apicid_8131_1, 0x3);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (8<<2)|1, apicid_8131_1, 0x0);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (8<<2)|2, apicid_8131_1, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (8<<2)|3, apicid_8131_1, 0x2);
-
-	//On Board NIC and adaptec scsi
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (9<<2)|0, apicid_8131_1, 0x0);
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,       (9<<2)|1, apicid_8131_1, 0x1);
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,     (0xa<<2)|0, apicid_8131_1, 0x0);
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1,     (0xa<<2)|1, apicid_8131_1, 0x1);
-
-	//Slot 1 PCI-X 133/100/66 or Side 1 on raiser card
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (3<<2)|0, apicid_8131_2, 0x0);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (3<<2)|1, apicid_8131_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (3<<2)|2, apicid_8131_2, 0x2);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (3<<2)|3, apicid_8131_2, 0x3);
-
-	//Slot 1 PCI-X 133/100/66, Side 2 on raiser card
-	//Fix ME, IRQ Pins?
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (4<<2)|0, apicid_8131_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (4<<2)|1, apicid_8131_2, 0x2);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (4<<2)|2, apicid_8131_2, 0x3);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2,       (4<<2)|3, apicid_8131_2, 0x0);
-
-	/*Local Ints:	     Type	Polarity            Trigger	          Bus ID   IRQ	APIC ID	     PIN#*/
+/*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
 	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x0);
-	smp_write_intsrc(mc, mp_NMI,    MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x1);
+	smp_write_intsrc(mc, mp_NMI, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x1);
 	/* There is no extension information... */
 
 	/* Compute the checksums */
diff --git a/src/mainboard/tyan/s2885/Config.lb b/src/mainboard/tyan/s2885/Config.lb
index d67570445b..37b0d90522 100644
--- a/src/mainboard/tyan/s2885/Config.lb
+++ b/src/mainboard/tyan/s2885/Config.lb
@@ -41,7 +41,7 @@ arch i386 end
 driver mainboard.o
 
 #dir /drivers/si/3114
-
+object get_bus_conf.o
 if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
 object reset.o
diff --git a/src/mainboard/tyan/s2885/get_bus_conf.c b/src/mainboard/tyan/s2885/get_bus_conf.c
new file mode 100644
index 0000000000..5e8e0bd347
--- /dev/null
+++ b/src/mainboard/tyan/s2885/get_bus_conf.c
@@ -0,0 +1,139 @@
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <string.h>
+#include <stdint.h>
+#if CONFIG_LOGICAL_CPUS==1
+#include <cpu/amd/dualcore.h>
+#endif
+
+
+// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
+//busnum is default
+unsigned char bus_isa = 7 ;
+unsigned char bus_8131_0 = 1;
+unsigned char bus_8131_1 = 2;
+unsigned char bus_8131_2 = 3;
+unsigned char bus_8111_0 = 1;
+unsigned char bus_8111_1 = 4;
+unsigned char bus_8151_0 = 5;
+unsigned char bus_8151_1 = 6;
+unsigned apicid_8111 ;
+unsigned apicid_8131_1;
+unsigned apicid_8131_2;
+
+unsigned sblk;
+unsigned pci1234[] = 
+{        //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
+        0x0000ff0,
+        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0
+};
+unsigned hc_possible_num;
+unsigned sbdn;
+unsigned hcdn[] = 
+{ //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
+	0x20202020,
+	0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+};
+unsigned sbdn3;
+unsigned sbdn5;
+
+extern void get_sblk_pci1234(void);
+
+static unsigned get_bus_conf_done = 0;
+
+void get_bus_conf(void)
+{
+
+	unsigned apicid_base;
+
+        device_t dev;
+
+	if(get_bus_conf_done==1) return; //do it only once
+
+	get_bus_conf_done = 1;
+
+	hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);	
+	
+	get_sblk_pci1234();
+	
+	sbdn = (hcdn[0] >> 8) & 0xff;
+	sbdn3 = hcdn[0] & 0xff;
+	sbdn5 = hcdn[1] & 0xff;
+
+	bus_8131_0 = (pci1234[0] >> 16) & 0xff;
+	bus_8111_0 = bus_8131_0;
+
+                /* 8111 */
+        dev = dev_find_slot(bus_8111_0, PCI_DEVFN(sbdn,0));
+        if (dev) {
+                bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if HT_CHAIN_END_UNITID_BASE >= HT_CHAIN_UNITID_BASE
+                bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                bus_isa++;
+//		printk_debug("bus_isa=%d\n",bus_isa);
+#endif
+        }
+	else {
+                printk_debug("ERROR - could not find PCI %02x:03.0, using defaults\n", bus_8111_0);
+        }
+
+        /* 8131-1 */
+        dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+        if (dev) {
+                bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if HT_CHAIN_END_UNITID_BASE < HT_CHAIN_UNITID_BASE
+                bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                bus_isa++;
+//              printk_debug("bus_isa=%d\n",bus_isa);
+#endif
+        }
+        else {
+                printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
+        }
+
+        /* 8132-2 */
+        dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
+        if (dev) {
+                bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+        }
+        else {
+                printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
+        }
+
+        /* HT chain 1 */
+	// it is on node0, so it must be there
+	bus_8151_0 = (pci1234[1] >> 16) & 0xff;
+        /* 8151 */
+	dev = dev_find_slot(bus_8151_0, PCI_DEVFN(sbdn5+1, 0));
+
+        if (dev) {
+           	bus_8151_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+//              printk_debug("bus_8151_1=%d\n",bus_8151_1);
+                bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+       	        bus_isa++;
+       	}
+
+/*I/O APICs:	APIC ID	Version	State		Address*/
+#if CONFIG_LOGICAL_CPUS==1
+	apicid_base = get_apicid_base(3);
+#else 
+	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
+#endif
+	apicid_8111 = apicid_base+0;
+	apicid_8131_1 = apicid_base+1;
+	apicid_8131_2 = apicid_base+2;
+}
diff --git a/src/mainboard/tyan/s2885/irq_tables.c b/src/mainboard/tyan/s2885/irq_tables.c
index 82e783a6c9..59c3704c83 100644
--- a/src/mainboard/tyan/s2885/irq_tables.c
+++ b/src/mainboard/tyan/s2885/irq_tables.c
@@ -4,36 +4,109 @@
 
    Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
 */
-
+#include <console/console.h>
+#include <device/pci.h>
+#include <string.h>
+#include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*11,        /* there can be total 11 devices on the bus */
-	3,           /* Where the interrupt router lies (bus) */
-	(4<<3)|3,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x1022,         /* Vendor */
-	0x746b,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-	0x42,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-	{
-		{3,(4<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x6,0, {{0, 0}, {0, 0}, {0, 0}, {0x4, 0xdef8}}, 0, 0},
-		{0x1,0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0, 0}, {0, 0}}, 0x0, 0},
-		{0x5,(3<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x5,(6<<3)|0, {{0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}}, 0x2, 0},
-		{0x4,(8<<3)|0, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x3, 0},
-		{0x4,(7<<3)|0, {{0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}}, 0x4, 0},
-		{0x6,(0x0a<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x5, 0},
-		{0x4,(9<<3)|0, {{0x1, 0xdef8}, {2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0b<<3)|0, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0c<<3)|0, {{0x4, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
+static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
+		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
+		uint8_t slot, uint8_t rfu)
+{
+        pirq_info->bus = bus; 
+        pirq_info->devfn = devfn;
+                pirq_info->irq[0].link = link0;
+                pirq_info->irq[0].bitmap = bitmap0;
+                pirq_info->irq[1].link = link1;
+                pirq_info->irq[1].bitmap = bitmap1;
+                pirq_info->irq[2].link = link2;
+                pirq_info->irq[2].bitmap = bitmap2;
+                pirq_info->irq[3].link = link3;
+                pirq_info->irq[3].bitmap = bitmap3;
+        pirq_info->slot = slot;
+        pirq_info->rfu = rfu;
+}
+
+extern  unsigned char bus_8131_0;
+extern  unsigned char bus_8131_1;
+extern  unsigned char bus_8131_2;
+extern  unsigned char bus_8111_0;
+extern  unsigned char bus_8111_1;
+extern  unsigned char bus_8151_0;
+extern  unsigned char bus_8151_1;
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdn5;
+
+extern void get_bus_conf(void);
+
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
-        return copy_pirq_routing_table(addr);
+
+	struct irq_routing_table *pirq;
+	struct irq_info *pirq_info;
+	unsigned slot_num;
+	uint8_t *v;
+
+        uint8_t sum=0;
+        int i;
+
+	get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
+
+        /* Align the table to be 16 byte aligned. */
+        addr += 15;
+        addr &= ~15;
+
+        /* This table must be betweeen 0xf0000 & 0x100000 */
+        printk_info("Writing IRQ routing tables to 0x%x...", addr);
+
+	pirq = (void *)(addr);
+	v = (uint8_t *)(addr);
+	
+	pirq->signature = PIRQ_SIGNATURE;
+	pirq->version  = PIRQ_VERSION;
+	
+	pirq->rtr_bus = bus_8111_0;
+	pirq->rtr_devfn = ((sbdn+1)<<3)|0;
+
+	pirq->exclusive_irqs = 0;
+	
+	pirq->rtr_vendor = 0x1022;
+	pirq->rtr_device = 0x746b;
+
+	pirq->miniport_data = 0;
+
+	memset(pirq->rfu, 0, sizeof(pirq->rfu));
+	
+	pirq_info = (void *) ( &pirq->checksum + 1);
+	slot_num = 0;
+//pci bridge
+	write_pirq_info(pirq_info, bus_8111_0, ((sbdn+1)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+	pirq_info++; slot_num++;
+//pcix bridge
+//        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+//        pirq_info++; slot_num++;
+//agp bridge
+        write_pirq_info(pirq_info, bus_8151_0, (sbdn5<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0); 
+
+        pirq_info++; slot_num++;
+             
+	pirq->size = 32 + 16 * slot_num; 
+
+        for (i = 0; i < pirq->size; i++)
+                sum += v[i];	
+
+	sum = pirq->checksum - sum;
+
+        if (sum != pirq->checksum) {
+                pirq->checksum = sum;
+        }
+
+	printk_info("done.\n");
+
+	return	(unsigned long) pirq_info;
+
 }
diff --git a/src/mainboard/tyan/s2885/mptable.c b/src/mainboard/tyan/s2885/mptable.c
index a9683d577c..83cbaf0e18 100644
--- a/src/mainboard/tyan/s2885/mptable.c
+++ b/src/mainboard/tyan/s2885/mptable.c
@@ -3,44 +3,25 @@
 #include <device/pci.h>
 #include <string.h>
 #include <stdint.h>
-#if CONFIG_LOGICAL_CPUS==1
-#include <cpu/amd/dualcore.h>
-#endif
 
+extern  unsigned char bus_isa;
+extern  unsigned char bus_8131_0;
+extern  unsigned char bus_8131_1;
+extern  unsigned char bus_8131_2;
+extern  unsigned char bus_8111_0;
+extern  unsigned char bus_8111_1;
+extern  unsigned char bus_8151_0;
+extern  unsigned char bus_8151_1;
+extern  unsigned apicid_8111;
+extern  unsigned apicid_8131_1;
+extern  unsigned apicid_8131_2;
 
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdn5;
 
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
+extern void get_bus_conf(void);
 
 
 void *smp_write_config_table(void *v)
@@ -51,18 +32,7 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
-        unsigned char bus_isa;
-	unsigned char bus_8131_0;
-        unsigned char bus_8131_1;
-        unsigned char bus_8131_2;
-	unsigned char bus_8111_0;
-        unsigned char bus_8111_1;
-	unsigned char bus_8151_0;
-	unsigned char bus_8151_1;
-	unsigned apicid_base;
-	unsigned apicid_8111;
-	unsigned apicid_8131_1;
-	unsigned apicid_8131_2;
+	int i;
 
 
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
@@ -84,71 +54,7 @@ void *smp_write_config_table(void *v)
 
         smp_write_processors(mc);
 
-       {
-                device_t dev;
-
-                /* HT chain 0 */
-                bus_8151_0 = node_link_to_bus(0, 0);
-                if (bus_8151_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_8151_0 = 1;
-                }
-		/* 8151 */
-                dev = dev_find_slot(bus_8151_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8151_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-//                        printk_debug("bus_8151_1=%d\n",bus_8151_1);
-			bus_8111_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_8111_0++;
-			bus_8131_0 = bus_8111_0;
-//			printk_debug("bus_8111_0=%d\n",bus_8111_0);
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:02.0, using defaults\n");
-                        bus_8151_1 = 2;
-			bus_8111_0 = bus_8131_0 = 3;
-                }
-
-                /* 8111 */
-                dev = dev_find_slot(bus_8111_0, PCI_DEVFN(0x03,0));
-                if (dev) {
-                        bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_isa    = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_isa++;
-//			printk_debug("bus_isa=%d\n",bus_isa);
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:03.0, using defaults\n", bus_8111_0);
-
-                        bus_8111_1 = 6;
-                        bus_isa = 7;
-                }
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = 4;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = 5;
-                }
-   
-        }
-
-
+	get_bus_conf();
 
 /*Bus:		Bus ID	Type*/
        /* define bus and isa numbers */
@@ -158,26 +64,18 @@ void *smp_write_config_table(void *v)
         smp_write_bus(mc, bus_isa, "ISA   ");
 
 /*I/O APICs:	APIC ID	Version	State		Address*/
-#if CONFIG_LOGICAL_CPUS==1
-	apicid_base = get_apicid_base(3);
-#else 
-	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
-#endif
-	apicid_8111 = apicid_base+0;
-	apicid_8131_1 = apicid_base+1;
-	apicid_8131_2 = apicid_base+2;
 	smp_write_ioapic(mc, apicid_8111, 0x11, 0xfec00000); //8111
         {
                 device_t dev;
 		struct resource *res;
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x1,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
 			}
                 }
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x2,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
@@ -201,9 +99,9 @@ void *smp_write_config_table(void *v)
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xe, apicid_8111, 0xe);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xf, apicid_8111, 0xf);
 //??? What
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_0, (4<<2)|3, apicid_8111, 0x13);
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_0, ((sbdn+1)<<2)|3, apicid_8111, 0x13);
 //Onboard AMD AC97 Audio 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_0, (4<<2)|1, apicid_8111, 0x11);
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_0, ((sbdn+1)<<2)|1, apicid_8111, 0x11);
 // Onboard AMD USB
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0<<2)|3, apicid_8111, 0x13);
 
@@ -218,34 +116,33 @@ void *smp_write_config_table(void *v)
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (9<<2)|0, apicid_8131_1, 0x0);
 
 //Slot 5 PCI 32
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0x0a<<2)|0, apicid_8111, 0x10);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0x0a<<2)|1, apicid_8111, 0x11);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0x0a<<2)|2, apicid_8111, 0x12); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0x0a<<2)|3, apicid_8111, 0x13); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0x0a<<2)|i, apicid_8111, 0x10 + (0+i)%4); //16
+        }
+
 
 //Slot 3 PCIX 100/66
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|0, apicid_8131_1, 0x3);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|1, apicid_8131_1, 0x0);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|2, apicid_8131_1, 0x1);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|3, apicid_8131_1, 0x2);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|i, apicid_8131_1, (3+i)%4); //27
+        }
+
 
 //Slot 4 PCIX 100/66        
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (7<<2)|0, apicid_8131_1, 0x2);
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (7<<2)|1, apicid_8131_1, 0x3);//
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (7<<2)|2, apicid_8131_1, 0x0);//
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (7<<2)|3, apicid_8131_1, 0x1);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (7<<2)|i, apicid_8131_1, (2+i)%4); //26
+        }
+
 
 //Slot 1 PCI-X 133/100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|0, apicid_8131_2, 0x0);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|1, apicid_8131_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|2, apicid_8131_2, 0x2); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|3, apicid_8131_2, 0x3); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|i, apicid_8131_2, (0+i)%4); //28
+        }
+
 
 //Slot 2 PCI-X 133/100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|0, apicid_8131_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|1, apicid_8131_2, 0x2);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|2, apicid_8131_2, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|3, apicid_8131_2, 0x0);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|i, apicid_8131_2, (1+i)%4); //29
+        }
 
 /*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
 	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x0);
diff --git a/src/mainboard/tyan/s2891/Config.lb b/src/mainboard/tyan/s2891/Config.lb
index 7dd9bee1bc..9c460066c9 100644
--- a/src/mainboard/tyan/s2891/Config.lb
+++ b/src/mainboard/tyan/s2891/Config.lb
@@ -44,6 +44,9 @@ driver mainboard.o
 
 #dir /drivers/ati/ragexl
 
+#needed by irq_tables and mptable and acpi_tables
+object get_bus_conf.o
+
 if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
 #object reset.o
diff --git a/src/mainboard/tyan/s2891/Options.lb b/src/mainboard/tyan/s2891/Options.lb
index fdb8e7a745..e87a4df341 100644
--- a/src/mainboard/tyan/s2891/Options.lb
+++ b/src/mainboard/tyan/s2891/Options.lb
@@ -55,8 +55,6 @@ uses CONFIG_CONSOLE_VGA
 uses CONFIG_PCI_ROM_RUN
 uses K8_HW_MEM_HOLE_SIZEK
 
-uses CK804_DEVN_BASE
-
 uses USE_DCACHE_RAM
 uses DCACHE_RAM_BASE
 uses DCACHE_RAM_SIZE
@@ -133,10 +131,6 @@ default CONFIG_LOGICAL_CPUS=1
 #1G memory hole
 default K8_HW_MEM_HOLE_SIZEK=0x100000
 
-#CK804 setting
-
-default CK804_DEVN_BASE=0
-
 #BTEXT Console
 #default CONFIG_CONSOLE_BTEXT=1
 
diff --git a/src/mainboard/tyan/s2891/get_bus_conf.c b/src/mainboard/tyan/s2891/get_bus_conf.c
new file mode 100644
index 0000000000..92fefa6a0c
--- /dev/null
+++ b/src/mainboard/tyan/s2891/get_bus_conf.c
@@ -0,0 +1,196 @@
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <string.h>
+#include <stdint.h>
+#if CONFIG_LOGICAL_CPUS==1
+#include <cpu/amd/dualcore.h>
+#endif
+
+
+// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
+//busnum is default
+        unsigned char bus_isa;
+        unsigned char bus_ck804_0; //1
+        unsigned char bus_ck804_1; //2
+        unsigned char bus_ck804_2; //3
+        unsigned char bus_ck804_3; //4
+        unsigned char bus_ck804_4; //5
+        unsigned char bus_ck804_5; //6
+        unsigned char bus_8131_0;  //7
+        unsigned char bus_8131_1;  //8
+        unsigned char bus_8131_2;  //9
+        unsigned apicid_ck804;
+        unsigned apicid_8131_1;
+        unsigned apicid_8131_2;
+
+unsigned sblk;
+unsigned pci1234[] = 
+{        //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
+        0x0000ff0,
+        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0
+};
+unsigned hc_possible_num;
+unsigned sbdn;
+unsigned hcdn[] = 
+{ //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
+	0x20202020,
+	0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+};
+
+unsigned sbdn3;
+
+extern void get_sblk_pci1234(void);
+
+static unsigned get_bus_conf_done = 0;
+
+void get_bus_conf(void)
+{
+
+	unsigned apicid_base;
+
+        device_t dev;
+
+	if(get_bus_conf_done==1) return; //do it only once
+
+	get_bus_conf_done = 1;
+
+	hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);	
+	
+	get_sblk_pci1234();
+	
+	sbdn = (hcdn[0] & 0xff); // first byte of first chain
+
+	sbdn3 = (hcdn[1] & 0xff); // first byte of second chain
+
+//	bus_ck804_0 = node_link_to_bus(0, sblk);
+	bus_ck804_0 = (pci1234[0] >> 16) & 0xff;
+
+
+                /* CK804 */
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
+                if (dev) {
+                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if 0
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_2++;
+#else
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_4++;
+#endif
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
+
+                        bus_ck804_1 = 2;
+#if 0
+                        bus_ck804_2 = 3;
+#else
+                        bus_ck804_4 = 3;
+#endif
+
+                }
+#if 0
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0b,0));
+                if (dev) {
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_3++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0b);
+
+                        bus_ck804_3 = bus_ck804_2+1;
+                }
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0c,0));
+                if (dev) {
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_4++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0c);
+
+                        bus_ck804_4 = bus_ck804_3+1;
+                }
+
+#endif
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
+                if (dev) {
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_5++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
+
+                        bus_ck804_5 = bus_ck804_4+1;
+                }
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
+                if (dev) {
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_8131_0++;
+                        bus_isa = bus_8131_0; // incase only one installed
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
+
+                        bus_8131_0 = bus_ck804_5+1;
+                }
+
+                /* 8131-1 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+                if (dev) {
+                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_8131_2++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_1 = bus_8131_0+1;
+                        bus_8131_2 = bus_8131_0+2;
+                }
+                /* 8131-2 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
+                if (dev) {
+                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_isa++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_2 = bus_8131_1+1;
+                        bus_isa = bus_8131_1+2;
+                }
+
+
+
+/*I/O APICs:	APIC ID	Version	State		Address*/
+#if CONFIG_LOGICAL_CPUS==1
+	apicid_base = get_apicid_base(3);
+#else 
+	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
+#endif
+	apicid_ck804 = apicid_base+0;
+        apicid_8131_1 = apicid_base+1;
+        apicid_8131_2 = apicid_base+2;
+}
diff --git a/src/mainboard/tyan/s2891/irq_tables.c b/src/mainboard/tyan/s2891/irq_tables.c
index d0657461ab..b4d61aaaea 100644
--- a/src/mainboard/tyan/s2891/irq_tables.c
+++ b/src/mainboard/tyan/s2891/irq_tables.c
@@ -10,71 +10,6 @@
 #include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*11,        /* there can be total 11 devices on the bus */
-	1,           /* Where the interrupt router lies (bus) */
-	((CK804_DEVN_BASE+9)<<3)|0,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x10de,         /* Vendor */
-	0x005c,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-#if CK804_DEVN_BASE==0
-	0x31,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-#else
-	0x19,
-#endif
-	{
-		{1,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x4,(1<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x7,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x0, 0},
-		{0x8,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x5,(6<<3)|0, {{0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}}, 0x2, 0},
-		{0x4,(8<<3)|0, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x3, 0},
-		{0x4,(7<<3)|0, {{0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}}, 0x4, 0},
-		{0x6,(0x0a<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x5, 0},
-		{0x4,(9<<3)|0, {{0x1, 0xdef8}, {2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0b<<3)|0, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0c<<3)|0, {{0x4, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
-
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
-
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
-
 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
 		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
 		uint8_t slot, uint8_t rfu)
@@ -93,6 +28,23 @@ static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t dev
         pirq_info->rfu = rfu;
 }
 
+extern  unsigned char bus_isa;
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;//7
+extern  unsigned char bus_8131_1;//8
+extern  unsigned char bus_8131_2;//9
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+
+extern void get_bus_conf(void);
+
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
 
@@ -104,126 +56,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
         uint8_t sum=0;
         int i;
 
-        unsigned char bus_ck804_0; //1
-        unsigned char bus_ck804_1; //2
-        unsigned char bus_ck804_2; //3
-        unsigned char bus_ck804_3; //4
-        unsigned char bus_ck804_4; //5
-        unsigned char bus_ck804_5; //6
-        unsigned char bus_8131_0;  //7
-        unsigned char bus_8131_1;  //8
-        unsigned char bus_8131_2;  //9 
-
-      {
-                device_t dev;
-                
-
-                bus_ck804_0 = node_link_to_bus(0, 0);
-                if (bus_ck804_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_ck804_0 = 1;
-                }       
-                /* CK804 */
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-#if 0                   
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_2++;
-#else 
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-#endif                  
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x09);
-
-                        bus_ck804_1 = 2;
-#if 0
-                        bus_ck804_2 = 3;
-#else
-                        bus_ck804_4 = 3;
-#endif
-
-                }
-#if 0                
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0b);
-
-                        bus_ck804_3 = bus_ck804_2+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0c);
-
-                        bus_ck804_4 = bus_ck804_3+1;
-                }
-#endif
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0d);
-
-                        bus_ck804_5 = bus_ck804_4+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0e);
-
-                        bus_8131_0 = bus_ck804_5+1;
-                }
-
-		bus_8131_0 = node_link_to_bus(0, 2);
-
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_2++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = bus_8131_0+1;
-                        bus_8131_2 = bus_8131_0+2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = bus_8131_1+1;
-                }
-
-
-        }
+       get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
 
         /* Align the table to be 16 byte aligned. */
         addr += 15;
@@ -239,7 +72,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->version  = PIRQ_VERSION;
 	
 	pirq->rtr_bus = bus_ck804_0;
-	pirq->rtr_devfn = ((CK804_DEVN_BASE+9)<<3)|0;
+	pirq->rtr_devfn = ((sbdn+9)<<3)|0;
 
 	pirq->exclusive_irqs = 0;
 	
@@ -253,32 +86,32 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq_info = (void *) ( &pirq->checksum + 1);
 	slot_num = 0;
 //pci bridge
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 	pirq_info++; slot_num++;
 //pcix bridge
-        write_pirq_info(pirq_info, bus_8131_0, (1<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
         pirq_info++; slot_num++;
              
 #if 0
 //smbus
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+1)<<3)|0, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+1)<<3)|0, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //usb
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+2)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+2)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //audio
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+4)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+4)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //sata
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+7)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+7)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //sata
-        write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+8)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+8)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //nic
-        write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //Slot1 PCIE x16
@@ -292,9 +125,6 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 //Slot2 pci
         write_pirq_info(pirq_info, bus_ck804_1, (0x4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 2, 0);
         pirq_info++; slot_num++;
-//nic   
-        write_pirq_info(pirq_info, bus_ck804b_0, ((CK804_DEVN_BASE+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
-        pirq_info++; slot_num++;
 //Slot3 PCIE x16 
         write_pirq_info(pirq_info, bus_ck804b_5, (0<<3)|0, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 0x2, 0xdef8, 3, 0);
         pirq_info++; slot_num++;
@@ -307,10 +137,6 @@ unsigned long write_pirq_routing_table(unsigned long addr)
         write_pirq_info(pirq_info, bus_8131_2, (9<<3)|0, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 5, 0);
         pirq_info++; slot_num++;
 
-//onboard scsi
-        write_pirq_info(pirq_info, bus_8131_2, (6<<3)|0, 0x2, 0xdef8, 0x3, 0xdef8, 0, 0, 0, 0, 0, 0);
-        pirq_info++; slot_num++;
-
 //Slot6 PCIX
         write_pirq_info(pirq_info, bus_8131_1, (4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 6, 0);
         pirq_info++; slot_num++;
diff --git a/src/mainboard/tyan/s2891/mptable.c b/src/mainboard/tyan/s2891/mptable.c
index e62ec6eef1..8e4be7d061 100644
--- a/src/mainboard/tyan/s2891/mptable.c
+++ b/src/mainboard/tyan/s2891/mptable.c
@@ -3,44 +3,26 @@
 #include <device/pci.h>
 #include <string.h>
 #include <stdint.h>
-#if CONFIG_LOGICAL_CPUS==1
-#include <cpu/amd/dualcore.h>
-#endif
 
-
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
-
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
+extern  unsigned char bus_isa;
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;//7
+extern  unsigned char bus_8131_1;//8
+extern  unsigned char bus_8131_2;//9
+extern  unsigned apicid_ck804;
+extern  unsigned apicid_8131_1;
+extern  unsigned apicid_8131_2;
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+
+extern void get_bus_conf(void);
 
 void *smp_write_config_table(void *v)
 {
@@ -50,20 +32,7 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
-        unsigned char bus_isa;
-	unsigned char bus_ck804_0; //1
-        unsigned char bus_ck804_1; //2
-	unsigned char bus_ck804_2; //3
-	unsigned char bus_ck804_3; //4
-	unsigned char bus_ck804_4; //5
-	unsigned char bus_ck804_5; //6
-        unsigned char bus_8131_0;  //7
-        unsigned char bus_8131_1;  //8
-        unsigned char bus_8131_2;  //9 
-        unsigned apicid_base;
-        unsigned apicid_ck804;
-        unsigned apicid_8131_1;
-        unsigned apicid_8131_2;
+	int i;
 
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
         memset(mc, 0, sizeof(*mc));
@@ -84,117 +53,7 @@ void *smp_write_config_table(void *v)
 
         smp_write_processors(mc);
 
-       {
-                device_t dev;
-
-                bus_ck804_0 = node_link_to_bus(0, 0);
-                if (bus_ck804_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_ck804_0 = 1;
-                }
-
-                /* CK804 */
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-#if 0
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_2++;
-#else 
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-#endif
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x09);
-
-                        bus_ck804_1 = 2;
-#if 0
-                        bus_ck804_2 = 3;
-#else
-                        bus_ck804_4 = 3;
-#endif
-
-                }
-#if 0
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0b);
-
-                        bus_ck804_3 = bus_ck804_2+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0c);
-
-                        bus_ck804_4 = bus_ck804_3+1;
-                }
-#endif
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0d);
-
-                        bus_ck804_5 = bus_ck804_4+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0e);
-
-                        bus_8131_0 = bus_ck804_5+1;
-                }
-
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_8131_2++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = bus_8131_0+1;
-			bus_8131_2 = bus_8131_0+2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_isa++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = bus_8131_1+1;
-			bus_isa = bus_8131_1+2;
-                }
-   
-        }
-
-
+	get_bus_conf();
 
 /*Bus:		Bus ID	Type*/
        /* define bus and isa numbers */
@@ -204,21 +63,12 @@ void *smp_write_config_table(void *v)
         smp_write_bus(mc, bus_isa, "ISA   ");
 
 /*I/O APICs:	APIC ID	Version	State		Address*/
-#if CONFIG_LOGICAL_CPUS==1
-	apicid_base = get_apicid_base(3);
-#else
-        apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
-#endif
-        apicid_ck804 = apicid_base;
-        apicid_8131_1 = apicid_base+1;
-        apicid_8131_2 = apicid_base+2;
-//	smp_write_ioapic(mc, 2, 0x11, 0xfec00000);
         {
                 device_t dev;
 		struct resource *res;
 		uint32_t dword;
 
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE+ 0x1,0));
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x1,0));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_1);
 			if (res) {
@@ -233,18 +83,19 @@ void *smp_write_config_table(void *v)
 		        pci_write_config32(dev, 0x80, dword);
 
 	        	dword = 0x0000007d;
+
 		        pci_write_config32(dev, 0x84, dword);
 
                 }
 
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x1,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
 			}
                 }
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x2,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
@@ -268,56 +119,54 @@ void *smp_write_config_table(void *v)
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xe, apicid_ck804, 0xe);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xf, apicid_ck804, 0xf);
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+1)<<2)|1, apicid_ck804, 0xa);
+// Onboard ck804 smbus
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+1)<<2)|1, apicid_ck804, 0xa);
 // 10
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|0, apicid_ck804, 0x15); // 21
-
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|1, apicid_ck804, 0x14); // 20
-
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +7)<<2)|0, apicid_ck804, 0x17); // 23
-
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +8)<<2)|0, apicid_ck804, 0x16); // 22
-
-#if CK804_DEVN_BASE == 0 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x10); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x11); // 
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x10); // 
-#endif
-
-#if CK804_DEVN_BASE == 0
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|0, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|1, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|2, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|3, apicid_ck804, 0x10); // 
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|0, apicid_ck804, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|1, apicid_ck804, 0x11); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|2, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|3, apicid_ck804, 0x13); // 
-#endif
+// Onboard ck804 USB 1.1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|0, apicid_ck804, 0x15); // 21
+
+// Onboard ck804 USB 2
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|1, apicid_ck804, 0x14); // 20
+
+// Onboard ck804 SATA 0
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +7)<<2)|0, apicid_ck804, 0x17); // 23
+
+// Onboard ck804 SATA 1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +8)<<2)|0, apicid_ck804, 0x16); // 22
+
+//Slot  PCIE x16
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|i, apicid_ck804, 0x10 + (2+i+4-sbdn%4)%4);
+        }
 
+//Slot  PCIE x4
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|i, apicid_ck804, 0x10 + (1+i+4-sbdn%4)%4);
+        }
+
+//Onboard ati
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (7<<2)|0, apicid_ck804, 0x13); // 19
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|0, apicid_8131_2, 0x0); //24+4+0 = 28
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|1, apicid_8131_2, 0x1);
+//Channel B of 8131
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|0, apicid_8131_1, 0x0); // 24
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|1, apicid_8131_1, 0x1);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|2, apicid_8131_1, 0x2);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|3, apicid_8131_1, 0x3);//
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|0, apicid_8131_1, 0x2); // 26
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|1, apicid_8131_1, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|2, apicid_8131_1, 0x0);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|3, apicid_8131_1, 0x1);//
+//Onboard Broadcom NIC
+        for(i=0;i<2;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|i, apicid_8131_2, (0+i)%4); //28
+        }
+
+//Channel A of 8131
 
+//Slot 4 PCIX 133/100/66       
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (8<<2)|i, apicid_8131_1, (0+i)%4); //24
+        }
+
+//Slot 3 PCIX 133/100/66 SoDIMM PCI
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (0xa<<2)|i, apicid_8131_1, (2+i)%4); //26
+        }
 
 /*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
 	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x0);
diff --git a/src/mainboard/tyan/s2892/Config.lb b/src/mainboard/tyan/s2892/Config.lb
index f4a32837e1..dcb0c45abf 100644
--- a/src/mainboard/tyan/s2892/Config.lb
+++ b/src/mainboard/tyan/s2892/Config.lb
@@ -43,6 +43,9 @@ arch i386 end
 driver mainboard.o
 
 #dir /drivers/ati/ragexl
+#needed by irq_tables and mptable and acpi_tables
+object get_bus_conf.o
+
 
 if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
diff --git a/src/mainboard/tyan/s2892/Options.lb b/src/mainboard/tyan/s2892/Options.lb
index ede4fe9708..a8bac76536 100644
--- a/src/mainboard/tyan/s2892/Options.lb
+++ b/src/mainboard/tyan/s2892/Options.lb
@@ -55,8 +55,6 @@ uses CONFIG_CONSOLE_VGA
 uses CONFIG_PCI_ROM_RUN
 uses K8_HW_MEM_HOLE_SIZEK
 
-uses CK804_DEVN_BASE
-
 uses USE_DCACHE_RAM
 uses DCACHE_RAM_BASE
 uses DCACHE_RAM_SIZE
@@ -127,10 +125,6 @@ default CONFIG_LOGICAL_CPUS=1
 #1G memory hole
 default K8_HW_MEM_HOLE_SIZEK=0x100000
 
-#CK804 setting
-
-default CK804_DEVN_BASE=0
-
 #BTEXT Console
 #default CONFIG_CONSOLE_BTEXT=1
 
diff --git a/src/mainboard/tyan/s2892/get_bus_conf.c b/src/mainboard/tyan/s2892/get_bus_conf.c
new file mode 100644
index 0000000000..92fefa6a0c
--- /dev/null
+++ b/src/mainboard/tyan/s2892/get_bus_conf.c
@@ -0,0 +1,196 @@
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <string.h>
+#include <stdint.h>
+#if CONFIG_LOGICAL_CPUS==1
+#include <cpu/amd/dualcore.h>
+#endif
+
+
+// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
+//busnum is default
+        unsigned char bus_isa;
+        unsigned char bus_ck804_0; //1
+        unsigned char bus_ck804_1; //2
+        unsigned char bus_ck804_2; //3
+        unsigned char bus_ck804_3; //4
+        unsigned char bus_ck804_4; //5
+        unsigned char bus_ck804_5; //6
+        unsigned char bus_8131_0;  //7
+        unsigned char bus_8131_1;  //8
+        unsigned char bus_8131_2;  //9
+        unsigned apicid_ck804;
+        unsigned apicid_8131_1;
+        unsigned apicid_8131_2;
+
+unsigned sblk;
+unsigned pci1234[] = 
+{        //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
+        0x0000ff0,
+        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0
+};
+unsigned hc_possible_num;
+unsigned sbdn;
+unsigned hcdn[] = 
+{ //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
+	0x20202020,
+	0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+};
+
+unsigned sbdn3;
+
+extern void get_sblk_pci1234(void);
+
+static unsigned get_bus_conf_done = 0;
+
+void get_bus_conf(void)
+{
+
+	unsigned apicid_base;
+
+        device_t dev;
+
+	if(get_bus_conf_done==1) return; //do it only once
+
+	get_bus_conf_done = 1;
+
+	hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);	
+	
+	get_sblk_pci1234();
+	
+	sbdn = (hcdn[0] & 0xff); // first byte of first chain
+
+	sbdn3 = (hcdn[1] & 0xff); // first byte of second chain
+
+//	bus_ck804_0 = node_link_to_bus(0, sblk);
+	bus_ck804_0 = (pci1234[0] >> 16) & 0xff;
+
+
+                /* CK804 */
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
+                if (dev) {
+                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if 0
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_2++;
+#else
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_4++;
+#endif
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
+
+                        bus_ck804_1 = 2;
+#if 0
+                        bus_ck804_2 = 3;
+#else
+                        bus_ck804_4 = 3;
+#endif
+
+                }
+#if 0
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0b,0));
+                if (dev) {
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_3++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0b);
+
+                        bus_ck804_3 = bus_ck804_2+1;
+                }
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0c,0));
+                if (dev) {
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_4++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0c);
+
+                        bus_ck804_4 = bus_ck804_3+1;
+                }
+
+#endif
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
+                if (dev) {
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_5++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
+
+                        bus_ck804_5 = bus_ck804_4+1;
+                }
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
+                if (dev) {
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_8131_0++;
+                        bus_isa = bus_8131_0; // incase only one installed
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
+
+                        bus_8131_0 = bus_ck804_5+1;
+                }
+
+                /* 8131-1 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+                if (dev) {
+                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_8131_2++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_1 = bus_8131_0+1;
+                        bus_8131_2 = bus_8131_0+2;
+                }
+                /* 8131-2 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
+                if (dev) {
+                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_isa++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_2 = bus_8131_1+1;
+                        bus_isa = bus_8131_1+2;
+                }
+
+
+
+/*I/O APICs:	APIC ID	Version	State		Address*/
+#if CONFIG_LOGICAL_CPUS==1
+	apicid_base = get_apicid_base(3);
+#else 
+	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
+#endif
+	apicid_ck804 = apicid_base+0;
+        apicid_8131_1 = apicid_base+1;
+        apicid_8131_2 = apicid_base+2;
+}
diff --git a/src/mainboard/tyan/s2892/irq_tables.c b/src/mainboard/tyan/s2892/irq_tables.c
index d6f75a0950..b4d61aaaea 100644
--- a/src/mainboard/tyan/s2892/irq_tables.c
+++ b/src/mainboard/tyan/s2892/irq_tables.c
@@ -4,36 +4,157 @@
 
    Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
 */
-
+#include <console/console.h>
+#include <device/pci.h>
+#include <string.h>
+#include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*11,        /* there can be total 11 devices on the bus */
-	1,           /* Where the interrupt router lies (bus) */
-	((CK804_DEVN_BASE+9)<<3)|0,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x10de,         /* Vendor */
-	0x005c,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-	0x5a,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-	{
-		{1,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x5,(1<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x5,(4<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x0, 0},
-		{0x5,(3<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x5,(6<<3)|0, {{0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}}, 0x2, 0},
-		{0x4,(8<<3)|0, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x3, 0},
-		{0x4,(7<<3)|0, {{0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}}, 0x4, 0},
-		{0x6,(0x0a<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x5, 0},
-		{0x4,(9<<3)|0, {{0x1, 0xdef8}, {2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0b<<3)|0, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0c<<3)|0, {{0x4, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
+static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
+		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
+		uint8_t slot, uint8_t rfu)
+{
+        pirq_info->bus = bus; 
+        pirq_info->devfn = devfn;
+                pirq_info->irq[0].link = link0;
+                pirq_info->irq[0].bitmap = bitmap0;
+                pirq_info->irq[1].link = link1;
+                pirq_info->irq[1].bitmap = bitmap1;
+                pirq_info->irq[2].link = link2;
+                pirq_info->irq[2].bitmap = bitmap2;
+                pirq_info->irq[3].link = link3;
+                pirq_info->irq[3].bitmap = bitmap3;
+        pirq_info->slot = slot;
+        pirq_info->rfu = rfu;
+}
+
+extern  unsigned char bus_isa;
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;//7
+extern  unsigned char bus_8131_1;//8
+extern  unsigned char bus_8131_2;//9
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+
+extern void get_bus_conf(void);
+
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
-        return copy_pirq_routing_table(addr);
+
+	struct irq_routing_table *pirq;
+	struct irq_info *pirq_info;
+	unsigned slot_num;
+	uint8_t *v;
+
+        uint8_t sum=0;
+        int i;
+
+       get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
+
+        /* Align the table to be 16 byte aligned. */
+        addr += 15;
+        addr &= ~15;
+
+        /* This table must be betweeen 0xf0000 & 0x100000 */
+        printk_info("Writing IRQ routing tables to 0x%x...", addr);
+
+	pirq = (void *)(addr);
+	v = (uint8_t *)(addr);
+	
+	pirq->signature = PIRQ_SIGNATURE;
+	pirq->version  = PIRQ_VERSION;
+	
+	pirq->rtr_bus = bus_ck804_0;
+	pirq->rtr_devfn = ((sbdn+9)<<3)|0;
+
+	pirq->exclusive_irqs = 0;
+	
+	pirq->rtr_vendor = 0x10de;
+	pirq->rtr_device = 0x005c;
+
+	pirq->miniport_data = 0;
+
+	memset(pirq->rfu, 0, sizeof(pirq->rfu));
+
+	pirq_info = (void *) ( &pirq->checksum + 1);
+	slot_num = 0;
+//pci bridge
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+	pirq_info++; slot_num++;
+//pcix bridge
+        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+        pirq_info++; slot_num++;
+             
+#if 0
+//smbus
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+1)<<3)|0, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+
+//usb
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+2)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+
+//audio
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+4)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+//sata
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+7)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+//sata
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+8)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+//nic
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+
+//Slot1 PCIE x16
+        write_pirq_info(pirq_info, bus_ck804_5, (0<<3)|0, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 0x2, 0xdef8, 1, 0);
+        pirq_info++; slot_num++;
+
+//firewire
+        write_pirq_info(pirq_info, bus_ck804_1, (0x5<<3)|0, 0x3, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        pirq_info++; slot_num++;
+
+//Slot2 pci
+        write_pirq_info(pirq_info, bus_ck804_1, (0x4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 2, 0);
+        pirq_info++; slot_num++;
+//Slot3 PCIE x16 
+        write_pirq_info(pirq_info, bus_ck804b_5, (0<<3)|0, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 0x2, 0xdef8, 3, 0);
+        pirq_info++; slot_num++;
+
+//Slot4 PCIX
+        write_pirq_info(pirq_info, bus_8131_2, (4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 4, 0);
+        pirq_info++; slot_num++;
+
+//Slot5 PCIX
+        write_pirq_info(pirq_info, bus_8131_2, (9<<3)|0, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 5, 0);
+        pirq_info++; slot_num++;
+
+//Slot6 PCIX
+        write_pirq_info(pirq_info, bus_8131_1, (4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 6, 0);
+        pirq_info++; slot_num++;
+#endif
+                
+	pirq->size = 32 + 16 * slot_num; 
+
+        for (i = 0; i < pirq->size; i++)
+                sum += v[i];	
+
+	sum = pirq->checksum - sum;
+
+        if (sum != pirq->checksum) {
+                pirq->checksum = sum;
+        }
+
+	printk_info("done.\n");
+
+	return	(unsigned long) pirq_info;
+
 }
diff --git a/src/mainboard/tyan/s2892/mptable.c b/src/mainboard/tyan/s2892/mptable.c
index 02754a1b34..e0f16d8921 100644
--- a/src/mainboard/tyan/s2892/mptable.c
+++ b/src/mainboard/tyan/s2892/mptable.c
@@ -3,44 +3,25 @@
 #include <device/pci.h>
 #include <string.h>
 #include <stdint.h>
-#if CONFIG_LOGICAL_CPUS==1
-#include <cpu/amd/dualcore.h>
-#endif
 
+extern  unsigned char bus_isa;
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;//7
+extern  unsigned char bus_8131_1;//8
+extern  unsigned char bus_8131_2;//9
+extern  unsigned apicid_ck804;
+extern  unsigned apicid_8131_1;
+extern  unsigned apicid_8131_2;
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
 
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
-
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
 
 void *smp_write_config_table(void *v)
 {
@@ -50,20 +31,7 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
-        unsigned char bus_isa;
-	unsigned char bus_ck804_0; //1
-        unsigned char bus_ck804_1; //2
-	unsigned char bus_ck804_2; //3
-	unsigned char bus_ck804_3; //4
-	unsigned char bus_ck804_4; //5
-	unsigned char bus_ck804_5; //6
-        unsigned char bus_8131_0;  //7
-        unsigned char bus_8131_1;  //8
-        unsigned char bus_8131_2;  //9 
-        unsigned apicid_base;
-        unsigned apicid_ck804;
-        unsigned apicid_8131_1;
-        unsigned apicid_8131_2;
+	int i;
 
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
         memset(mc, 0, sizeof(*mc));
@@ -84,117 +52,7 @@ void *smp_write_config_table(void *v)
 
         smp_write_processors(mc);
 
-       {
-                device_t dev;
-
-                bus_ck804_0 = node_link_to_bus(0, 0);
-                if (bus_ck804_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_ck804_0 = 1;
-                }
-
-                /* CK804 */
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-#if 0
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_2++;
-#else 
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-#endif
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x09);
-
-                        bus_ck804_1 = 2;
-#if 0
-                        bus_ck804_2 = 3;
-#else
-                        bus_ck804_4 = 3;
-#endif
-
-                }
-#if 0
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0b);
-
-                        bus_ck804_3 = bus_ck804_2+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0c);
-
-                        bus_ck804_4 = bus_ck804_3+1;
-                }
-#endif
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0d);
-
-                        bus_ck804_5 = bus_ck804_4+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0e);
-
-                        bus_8131_0 = bus_ck804_5+1;
-                }
-
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_8131_2++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = bus_8131_0+1;
-			bus_8131_2 = bus_8131_0+2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_isa++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = bus_8131_1+1;
-			bus_isa = bus_8131_1+2;
-                }
-   
-        }
-
-
+	get_bus_conf();
 
 /*Bus:		Bus ID	Type*/
        /* define bus and isa numbers */
@@ -204,33 +62,23 @@ void *smp_write_config_table(void *v)
         smp_write_bus(mc, bus_isa, "ISA   ");
 
 /*I/O APICs:	APIC ID	Version	State		Address*/
-#if CONFIG_LOGICAL_CPUS==1
-	apicid_base = get_apicid_base(3);
-#else
-        apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
-#endif
-        apicid_ck804 = apicid_base;
-        apicid_8131_1 = apicid_base+1;
-        apicid_8131_2 = apicid_base+2;
-//	smp_write_ioapic(mc, 2, 0x11, 0xfec00000);
         {
                 device_t dev;
 		struct resource *res;
 		uint32_t dword;
 
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE+ 0x1,0));
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x1,0));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_1);
 			if (res) {
 				smp_write_ioapic(mc, apicid_ck804, 0x11, res->base);
 			}
         
-	/* Initialize interrupt mapping*/
-
 			dword = 0x0000d218;
 	        	pci_write_config32(dev, 0x7c, dword);
 
 		        dword = 0x12008a00;
+
 		        pci_write_config32(dev, 0x80, dword);
 
 	        	dword = 0x0000007d;
@@ -238,14 +86,14 @@ void *smp_write_config_table(void *v)
 
                 }
 
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x1,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
 			}
                 }
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x2,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
@@ -269,79 +117,76 @@ void *smp_write_config_table(void *v)
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xe, apicid_ck804, 0xe);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xf, apicid_ck804, 0xf);
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+1)<<2)|1, apicid_ck804, 0xa);
+// Onboard ck804 smbus
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+1)<<2)|1, apicid_ck804, 0xa);
 // 10
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|0, apicid_ck804, 0x15); // 21
+// Onboard ck804 USB 1.1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|0, apicid_ck804, 0x15); // 21
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|1, apicid_ck804, 0x14); // 20
+// Onboard ck804 USB 2
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|1, apicid_ck804, 0x14); // 20
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +7)<<2)|0, apicid_ck804, 0x17); // 23
+// Onboard ck804 SATA 0
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +7)<<2)|0, apicid_ck804, 0x17); // 23
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +8)<<2)|0, apicid_ck804, 0x16); // 22
+// Onboard ck804 SATA 1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +8)<<2)|0, apicid_ck804, 0x16); // 22
 
-#if CK804_DEVN_BASE == 0
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x10); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x11); // 
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x10); // 
-#endif
+//Slot  PCIE x16
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|i, apicid_ck804, 0x10 + (2+i+4-sbdn%4)%4);
+        }
 
-#if CK804_DEVN_BASE == 0
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|0, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|1, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|2, apicid_ck804, 0x13); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|3, apicid_ck804, 0x10); // 
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|0, apicid_ck804, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|1, apicid_ck804, 0x11); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|2, apicid_ck804, 0x12); // 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|3, apicid_ck804, 0x13); // 
-#endif
+//Slot  PCIE x4
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_4, (0x00<<2)|i, apicid_ck804, 0x10 + (1+i+4-sbdn%4)%4);
+        }
 
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|0, apicid_ck804, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|1, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|2, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|3, apicid_ck804, 0x13); // 19
+//Slot 2 PCI 32
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (4<<2)|i, apicid_ck804, 0x10+(0+i)%4); //16
+        }
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (6<<2)|0, apicid_ck804, 0x12); // 18
 
+//Onboard ati
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (6<<2)|0, apicid_ck804, 0x12); // 18
+//Onboard intel 10/100
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (8<<2)|0, apicid_ck804, 0x12); // 18
 
 //Channel B of 8131
 
 
 //Onboard Broadcom NIC
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|0, apicid_8131_2, 0x0);//24+4= 28
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|1, apicid_8131_2, 0x1);
+        for(i=0;i<2;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|i, apicid_8131_2, (0+i)%4); //28
+        }
+
 //SO DIMM PCI-X
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (7<<2)|0, apicid_8131_2, 0x0);//28 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (7<<2)|1, apicid_8131_2, 0x1); 
+        for(i=0;i<2;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (7<<2)|i, apicid_8131_2, (0+i)%4); //28
+        }
+
 //Slot 4 PCIX 133/100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|0, apicid_8131_2, 0x2); // 30
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|1, apicid_8131_2, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|2, apicid_8131_2, 0x0);// 28
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|3, apicid_8131_2, 0x1);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (3<<2)|i, apicid_8131_2, (2+i)%4); //30
+        }
+
 
 //Channel A of 8131
 
 //Slot 5 PCIX 133/100/66        
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (3<<2)|0, apicid_8131_1, 0x3); //28 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (3<<2)|1, apicid_8131_1, 0x0);//24
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (3<<2)|2, apicid_8131_1, 0x1);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (3<<2)|3, apicid_8131_1, 0x2);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (3<<2)|i, apicid_8131_1, (3+i)%4); //27
+        }
+
 
 //Slot 6 PCIX 133/100/66 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (2<<2)|0, apicid_8131_1, 0x2); // 27
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (2<<2)|1, apicid_8131_1, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (2<<2)|2, apicid_8131_1, 0x0);// 24
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (2<<2)|3, apicid_8131_1, 0x1);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (2<<2)|i, apicid_8131_1, (2+i)%4); //26
+        }
+
 
 
 /*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
diff --git a/src/mainboard/tyan/s2895/Config.lb b/src/mainboard/tyan/s2895/Config.lb
index 7339e7c4a3..6b41829017 100644
--- a/src/mainboard/tyan/s2895/Config.lb
+++ b/src/mainboard/tyan/s2895/Config.lb
@@ -41,6 +41,9 @@ arch i386 end
 ##
 
 driver mainboard.o
+#needed by irq_tables and mptable and acpi_tables
+object get_bus_conf.o
+
 if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
 #object reset.o
diff --git a/src/mainboard/tyan/s2895/Options.lb b/src/mainboard/tyan/s2895/Options.lb
index cfb0e13222..49b0e0b0de 100644
--- a/src/mainboard/tyan/s2895/Options.lb
+++ b/src/mainboard/tyan/s2895/Options.lb
@@ -55,8 +55,6 @@ uses CONFIG_PCI_ROM_RUN
 uses K8_HW_MEM_HOLE_SIZEK
 uses K8_HT_FREQ_1G_SUPPORT
 
-uses CK804_DEVN_BASE
-
 uses USE_DCACHE_RAM
 uses DCACHE_RAM_BASE
 uses DCACHE_RAM_SIZE
@@ -136,9 +134,6 @@ default K8_HW_MEM_HOLE_SIZEK=0x100000
 #Opteron K8 1G HT Support
 default K8_HT_FREQ_1G_SUPPORT=1
 
-#CK804 setting
-#default CK804_DEVN_BASE=0
-
 #VGA
 default CONFIG_CONSOLE_VGA=1
 default CONFIG_PCI_ROM_RUN=1
diff --git a/src/mainboard/tyan/s2895/cache_as_ram_auto.c b/src/mainboard/tyan/s2895/cache_as_ram_auto.c
index 0a97666ae2..1ae0c9e5d1 100644
--- a/src/mainboard/tyan/s2895/cache_as_ram_auto.c
+++ b/src/mainboard/tyan/s2895/cache_as_ram_auto.c
@@ -113,7 +113,6 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "cpu/amd/dualcore/dualcore.c"
 
 #define CK804_NUM 2
-#define CK804B_BUSN 0x80
 #define CK804_USE_NIC 1
 #define CK804_USE_ACI 1
 
@@ -128,7 +127,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
                 RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+16, ~(0xff),((0<<4)|(0<<2)|(0<<0)),/* K4,GPIO17, PCIXB_PRSNT1_L*/  \
                 RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+45, ~(0xff),((0<<4)|(0<<2)|(0<<0)),/* P7,GPIO46, PCIXB_PRSNT2_L*/
 
-#include "southbridge/nvidia/ck804/ck804_early_setup.c"
+#include "southbridge/nvidia/ck804/ck804_early_setup_car.c"
 
 #include "cpu/amd/car/copy_and_run.c"
 
diff --git a/src/mainboard/tyan/s2895/get_bus_conf.c b/src/mainboard/tyan/s2895/get_bus_conf.c
new file mode 100644
index 0000000000..070e6dc5f2
--- /dev/null
+++ b/src/mainboard/tyan/s2895/get_bus_conf.c
@@ -0,0 +1,271 @@
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <string.h>
+#include <stdint.h>
+#if CONFIG_LOGICAL_CPUS==1
+#include <cpu/amd/dualcore.h>
+#endif
+
+
+// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
+//busnum is default
+        unsigned char bus_isa;
+        unsigned char bus_ck804_0; //1
+        unsigned char bus_ck804_1; //2
+        unsigned char bus_ck804_2; //3
+        unsigned char bus_ck804_3; //4
+        unsigned char bus_ck804_4; //5
+        unsigned char bus_ck804_5; //6
+        unsigned char bus_8131_0;  //7
+        unsigned char bus_8131_1;  //8
+        unsigned char bus_8131_2;  //9
+        unsigned char bus_ck804b_0;//a
+        unsigned char bus_ck804b_1;//b
+        unsigned char bus_ck804b_2;//c
+        unsigned char bus_ck804b_3;//d
+        unsigned char bus_ck804b_4;//e
+        unsigned char bus_ck804b_5;//f
+        unsigned apicid_ck804;
+        unsigned apicid_8131_1;
+        unsigned apicid_8131_2;
+        unsigned apicid_ck804b;
+
+unsigned sblk;
+unsigned pci1234[] = 
+{        //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
+        0x0000ff0,
+        0x0000ff0,
+        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0,
+//        0x0000ff0
+};
+unsigned hc_possible_num;
+unsigned sbdn;
+unsigned hcdn[] = 
+{ //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
+	0x20202020,
+	0x20202020,
+        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+//        0x20202020,
+};
+unsigned sbdn3;
+unsigned sbdnb;
+
+extern void get_sblk_pci1234(void);
+
+static unsigned get_bus_conf_done = 0;
+
+void get_bus_conf(void)
+{
+
+	unsigned apicid_base;
+
+        device_t dev;
+
+	if(get_bus_conf_done==1) return; //do it only once
+
+	get_bus_conf_done = 1;
+
+	hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);	
+	
+	get_sblk_pci1234();
+	
+	sbdn = (hcdn[0] & 0xff); // first byte of first chain
+
+	sbdn3 = (hcdn[1] & 0xff);
+
+	sbdnb = (hcdn[2] & 0xff); // first byte of second chain
+
+//	bus_ck804_0 = node_link_to_bus(0, sblk);
+	bus_ck804_0 = (pci1234[0] >> 16) & 0xff;
+
+                /* CK804 */
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
+                if (dev) {
+                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+#if 0
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_2++;
+#else
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_5++;
+#endif
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
+
+                        bus_ck804_1 = 2;
+#if 0
+                        bus_ck804_2 = 3;
+#else
+                        bus_ck804_5 = 3;
+#endif
+
+                }
+#if 0
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0b,0));
+                if (dev) {
+                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_3++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0b);
+
+                        bus_ck804_3 = bus_ck804_2+1;
+                }
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0c,0));
+                if (dev) {
+                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_4++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0c);
+
+                        bus_ck804_4 = bus_ck804_3+1;
+                }
+
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
+                if (dev) {
+                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804_5++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
+
+                        bus_ck804_5 = bus_ck804_4+1;
+                }
+#endif
+
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
+                if (dev) {
+                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
+                }
+
+		bus_8131_0 = (pci1234[1] >> 16) & 0xff;
+                /* 8131-1 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+                if (dev) {
+                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_8131_2++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_1 = bus_8131_0+1;
+                        bus_8131_2 = bus_8131_0+2;
+                }
+                /* 8131-2 */
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
+                if (dev) {
+                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_isa++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
+
+                        bus_8131_2 = bus_8131_1+1;
+                }
+
+                /* CK804b */
+
+	if(pci1234[2] & 0f) { //if the second cpu is installed
+		bus_ck804b_0 = (pci1234[2]>>16) & 0xff;
+#if 0
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x09,0));
+                if (dev) {
+                        bus_ck804b_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804b_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804b_2++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x09);
+
+                        bus_ck804b_1 = bus_ck804b_0+1;
+                        bus_ck804b_2 = bus_ck804b_0+2;
+                }
+
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x0b,0));
+                if (dev) {
+                        bus_ck804b_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804b_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804b_3++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x0b);
+
+                        bus_ck804b_2 = bus_ck804b_0+1;
+                        bus_ck804b_3 = bus_ck804b_0+2;
+                }
+
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x0c,0));
+                if (dev) {
+                        bus_ck804b_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804b_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804b_4++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x0c);
+
+                        bus_ck804b_4 = bus_ck804b_3+1;
+                }
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x0d,0));
+                if (dev) {
+                        bus_ck804b_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_ck804b_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_ck804b_5++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x0d);
+
+                        bus_ck804b_5 = bus_ck804b_4+1;
+                }
+#endif
+
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x0e,0));
+                if (dev) {
+                        bus_ck804b_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
+                        bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
+                        bus_isa++;
+                }
+                else {
+                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x0e);
+#if 1
+                        bus_ck804b_5 = bus_ck804b_4+1;
+#endif
+
+                        bus_isa = bus_ck804b_5+1;
+                }
+	}
+
+
+/*I/O APICs:	APIC ID	Version	State		Address*/
+#if CONFIG_LOGICAL_CPUS==1
+	apicid_base = get_apicid_base(4);
+#else 
+	apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
+#endif
+	apicid_ck804 = apicid_base+0;
+        apicid_8131_1 = apicid_base+1;
+        apicid_8131_2 = apicid_base+2;
+        apicid_ck804b = apicid_base+3;
+
+}
diff --git a/src/mainboard/tyan/s2895/irq_tables.c b/src/mainboard/tyan/s2895/irq_tables.c
index aa16866763..5ed428ff9f 100644
--- a/src/mainboard/tyan/s2895/irq_tables.c
+++ b/src/mainboard/tyan/s2895/irq_tables.c
@@ -10,71 +10,6 @@
 #include <stdint.h>
 #include <arch/pirq_routing.h>
 
-const struct irq_routing_table intel_irq_routing_table = {
-	PIRQ_SIGNATURE, /* u32 signature */
-	PIRQ_VERSION,   /* u16 version   */
-	32+16*11,        /* there can be total 11 devices on the bus */
-	1,           /* Where the interrupt router lies (bus) */
-	((CK804_DEVN_BASE+9)<<3)|0,           /* Where the interrupt router lies (dev) */
-	0,         /* IRQs devoted exclusively to PCI usage */
-	0x10de,         /* Vendor */
-	0x005c,         /* Device */
-	0,         /* Crap (miniport) */
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
-#if CK804_DEVN_BASE==0
-	0x31,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
-#else
-	0x19,
-#endif
-	{
-		{1,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x4,(1<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0, 0},
-		{0x7,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x0, 0},
-		{0x8,((CK804_DEVN_BASE+9)<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x1, 0},
-		{0x5,(6<<3)|0, {{0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}}, 0x2, 0},
-		{0x4,(8<<3)|0, {{0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}}, 0x3, 0},
-		{0x4,(7<<3)|0, {{0x3, 0xdef8}, {0x4, 0xdef8}, {0x1, 0xdef8}, {0x2, 0xdef8}}, 0x4, 0},
-		{0x6,(0x0a<<3)|0, {{0x1, 0xdef8}, {0x2, 0xdef8}, {0x3, 0xdef8}, {0x4, 0xdef8}}, 0x5, 0},
-		{0x4,(9<<3)|0, {{0x1, 0xdef8}, {2, 0xdef8}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0b<<3)|0, {{0x2, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-		{0x6,(0x0c<<3)|0, {{0x4, 0xdef8}, {0, 0}, {0, 0}, {0, 0}}, 0, 0},
-	}
-};
-
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
-
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
-
 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0, 
 		uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
 		uint8_t slot, uint8_t rfu)
@@ -93,6 +28,29 @@ static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t dev
         pirq_info->rfu = rfu;
 }
 
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;  //7
+extern  unsigned char bus_8131_1;  //8
+extern  unsigned char bus_8131_2;  //9
+extern  unsigned char bus_ck804b_0;//a
+extern  unsigned char bus_ck804b_1;//b
+extern  unsigned char bus_ck804b_2;//c
+extern  unsigned char bus_ck804b_3;//d
+extern  unsigned char bus_ck804b_4;//e
+extern  unsigned char bus_ck804b_5;//f
+
+extern unsigned pci1234[];
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdnb;
+
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
 
@@ -104,199 +62,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
         uint8_t sum=0;
         int i;
 
-        unsigned char bus_ck804_0; //1
-        unsigned char bus_ck804_1; //2
-        unsigned char bus_ck804_2; //3
-        unsigned char bus_ck804_3; //4
-        unsigned char bus_ck804_4; //5
-        unsigned char bus_ck804_5; //6
-        unsigned char bus_8131_0;  //7
-        unsigned char bus_8131_1;  //8
-        unsigned char bus_8131_2;  //9 
-        unsigned char bus_ck804b_0;//a 
-        unsigned char bus_ck804b_1;//b
-        unsigned char bus_ck804b_2;//c
-        unsigned char bus_ck804b_3;//d
-        unsigned char bus_ck804b_4;//e
-        unsigned char bus_ck804b_5;//f
-
-      {
-                device_t dev;
-                
-
-                bus_ck804_0 = node_link_to_bus(0, 0);
-                if (bus_ck804_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_ck804_0 = 1;
-                }       
-                /* CK804 */
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-#if 0                   
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_2++;
-#else 
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-#endif                  
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x09);
-
-                        bus_ck804_1 = 2;
-#if 0
-                        bus_ck804_2 = 3;
-#else
-                        bus_ck804_5 = 3;
-#endif
-
-                }
-#if 0                
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0b);
-
-                        bus_ck804_3 = bus_ck804_2+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0c);
-
-                        bus_ck804_4 = bus_ck804_3+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0d);
-
-                        bus_ck804_5 = bus_ck804_4+1;
-                }
-#endif
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0e);
-
-                        bus_8131_0 = bus_ck804_5+1;
-                }
-
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_2++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = bus_8131_0+1;
-                        bus_8131_2 = bus_8131_0+2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = bus_8131_1+1;
-                        bus_ck804b_0 = bus_8131_1+2;
-                }
-
-                /* CK804b */
-
-#if 0
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804b_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_2++;
-                }       
-                else {  
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x09);
-                
-                        bus_ck804b_1 = bus_ck804b_0+1;
-                        bus_ck804b_2 = bus_ck804b_0+2;
-                }
-                        
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804b_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0b);
-
-                        bus_ck804b_2 = bus_ck804b_0+1;
-                        bus_ck804b_3 = bus_ck804b_0+2;
-                }
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804b_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0c);
-
-                        bus_ck804b_4 = bus_ck804b_3+1;
-                }
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804b_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0d);
-
-                        bus_ck804b_5 = bus_ck804b_4+1;
-                }
-
-#endif
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804b_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0e);
-#if 1
-                        bus_ck804b_5 = bus_ck804b_0+1;
-#endif
-
-                }
-
-        }
+        get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
 
         /* Align the table to be 16 byte aligned. */
         addr += 15;
@@ -312,7 +78,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->version  = PIRQ_VERSION;
 	
 	pirq->rtr_bus = bus_ck804_0;
-	pirq->rtr_devfn = ((CK804_DEVN_BASE+9)<<3)|0;
+	pirq->rtr_devfn = ((sbdn+9)<<3)|0;
 
 	pirq->exclusive_irqs = 0;
 	
@@ -326,35 +92,37 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq_info = (void *) ( &pirq->checksum + 1);
 	slot_num = 0;
 //pci bridge
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 	pirq_info++; slot_num++;
 //pcix bridge
-        write_pirq_info(pirq_info, bus_8131_0, (1<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
-        pirq_info++; slot_num++;
-             
-//second pci beidge   
-        write_pirq_info(pirq_info, bus_ck804b_0, ((CK804_DEVN_BASE+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0x0, 0);
+        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
         pirq_info++; slot_num++;
+        
+	if(pci1234[2] & 0xf) {     
+	//second pci beidge   
+        	write_pirq_info(pirq_info, bus_ck804b_0, ((sbdnb+9)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0x0, 0);
+	        pirq_info++; slot_num++;
+	}
 #if 0
 //smbus
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+1)<<3)|0, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+1)<<3)|0, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //usb
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+2)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+2)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //audio
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+4)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+4)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //sata
-	write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+7)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+	write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+7)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //sata
-        write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+8)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+8)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //nic
-        write_pirq_info(pirq_info, bus_ck804_0, ((CK804_DEVN_BASE+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        write_pirq_info(pirq_info, bus_ck804_0, ((sbdn+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 
 //Slot1 PCIE x16
@@ -369,7 +137,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
         write_pirq_info(pirq_info, bus_ck804_1, (0x4<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 2, 0);
         pirq_info++; slot_num++;
 //nic   
-        write_pirq_info(pirq_info, bus_ck804b_0, ((CK804_DEVN_BASE+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
+        write_pirq_info(pirq_info, bus_ck804b_0, ((sbdnb+0xa)<<3)|0, 0x1, 0xdef8, 0, 0, 0, 0, 0, 0, 0, 0);
         pirq_info++; slot_num++;
 //Slot3 PCIE x16 
         write_pirq_info(pirq_info, bus_ck804b_5, (0<<3)|0, 0x3, 0xdef8, 0x4, 0xdef8, 0x1, 0xdef8, 0x2, 0xdef8, 3, 0);
diff --git a/src/mainboard/tyan/s2895/mptable.c b/src/mainboard/tyan/s2895/mptable.c
index 810e234af6..a41cbcd12f 100644
--- a/src/mainboard/tyan/s2895/mptable.c
+++ b/src/mainboard/tyan/s2895/mptable.c
@@ -4,44 +4,33 @@
 #include <string.h>
 #include <stdint.h>
 
-#if CONFIG_LOGICAL_CPUS==1
-#include <cpu/amd/dualcore.h>
-#endif
-
-
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        device_t dev;
-        unsigned reg;
-
-        dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
-        if (!dev) {
-                return 0;
-        }
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                uint32_t config_map;
-                unsigned dst_node;
-                unsigned dst_link;
-                unsigned bus_base;
-                config_map = pci_read_config32(dev, reg);
-                if ((config_map & 3) != 3) {
-                        continue;
-                }
-                dst_node = (config_map >> 4) & 7;
-                dst_link = (config_map >> 8) & 3;
-                bus_base = (config_map >> 16) & 0xff;
-#if 0                           
-                printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
-                        dst_node, dst_link, bus_base,
-                        reg, config_map);
-#endif
-                if ((dst_node == node) && (dst_link == link))
-                {
-                        return bus_base;
-                }
-        }
-        return 0;
-}
+extern  unsigned char bus_isa;
+extern  unsigned char bus_ck804_0; //1
+extern  unsigned char bus_ck804_1; //2
+extern  unsigned char bus_ck804_2; //3
+extern  unsigned char bus_ck804_3; //4
+extern  unsigned char bus_ck804_4; //5
+extern  unsigned char bus_ck804_5; //6
+extern  unsigned char bus_8131_0;  //7
+extern  unsigned char bus_8131_1;  //8
+extern  unsigned char bus_8131_2;  //9
+extern  unsigned char bus_ck804b_0;//a
+extern  unsigned char bus_ck804b_1;//b
+extern  unsigned char bus_ck804b_2;//c
+extern  unsigned char bus_ck804b_3;//d
+extern  unsigned char bus_ck804b_4;//e
+extern  unsigned char bus_ck804b_5;//f
+extern  unsigned apicid_ck804;
+extern  unsigned apicid_8131_1;
+extern  unsigned apicid_8131_2;
+extern  unsigned apicid_ck804b;
+
+extern unsigned pci1234[];
+
+extern  unsigned sbdn;
+extern  unsigned hcdn[];
+extern  unsigned sbdn3;
+extern  unsigned sbdnb;
 
 void *smp_write_config_table(void *v)
 {
@@ -51,28 +40,7 @@ void *smp_write_config_table(void *v)
         struct mp_config_table *mc;
 
         unsigned char bus_num;
-        unsigned char bus_isa;
-	unsigned char bus_ck804_0; //1
-        unsigned char bus_ck804_1; //2
-	unsigned char bus_ck804_2; //3
-	unsigned char bus_ck804_3; //4
-	unsigned char bus_ck804_4; //5
-	unsigned char bus_ck804_5; //6
-        unsigned char bus_8131_0;  //7
-        unsigned char bus_8131_1;  //8
-        unsigned char bus_8131_2;  //9 
-	unsigned char bus_ck804b_0;//a 
-	unsigned char bus_ck804b_1;//b
-	unsigned char bus_ck804b_2;//c
-	unsigned char bus_ck804b_3;//d
-	unsigned char bus_ck804b_4;//e
-	unsigned char bus_ck804b_5;//f
-	unsigned apicid_base;
-	unsigned apicid_ck804;
-	unsigned apicid_8131_1;
-	unsigned apicid_8131_2;
-	unsigned apicid_ck804b;
-
+	int i;
 
         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
         memset(mc, 0, sizeof(*mc));
@@ -93,188 +61,7 @@ void *smp_write_config_table(void *v)
 
         smp_write_processors(mc);
 
-       {
-                device_t dev;
-
-
-                bus_ck804_0 = node_link_to_bus(0, 0);
-                if (bus_ck804_0 == 0) {
-                        printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
-                        bus_ck804_0 = 1;
-                }
-                /* CK804 */
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-#if 0
-			bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_ck804_2++;
-#else 
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-#endif
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x09);
-
-                        bus_ck804_1 = 2;
-#if 0
-			bus_ck804_2 = 3;
-#else
-			bus_ck804_5 = 3;
-#endif
-
-                }
-#if 0                
-		dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0b);
-
-                        bus_ck804_3 = bus_ck804_2+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", CK804_DEVN_BASE + 0x0c);
-
-                        bus_ck804_4 = bus_ck804_3+1;
-                }
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0d);
-
-                        bus_ck804_5 = bus_ck804_4+1;
-                }
-#endif
-
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_8131_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",CK804_DEVN_BASE + 0x0e);
-
-                        bus_8131_0 = bus_ck804_5+1;
-                }
-
-                /* 8131-1 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x01,0));
-                if (dev) {
-                        bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_8131_2++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_1 = bus_8131_0+1;
-			bus_8131_2 = bus_8131_0+2;
-                }
-                /* 8131-2 */
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x02,0));
-                if (dev) {
-                        bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-			bus_ck804b_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-			bus_ck804b_0++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
-
-                        bus_8131_2 = bus_8131_1+1;
-			bus_ck804b_0 = bus_8131_1+2;
-                }
-
-                /* CK804b */
-
-#if 0
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x09,0));
-                if (dev) {
-                        bus_ck804b_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_2++;
-                }       
-                else {  
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x09);
-                
-                        bus_ck804b_1 = bus_ck804b_0+1;
-                        bus_ck804b_2 = bus_ck804b_0+2;
-                }
-                        
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0b,0));
-                if (dev) {
-                        bus_ck804b_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_3++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0b);
-
-                        bus_ck804b_2 = bus_ck804b_0+1;
-                        bus_ck804b_3 = bus_ck804b_0+2;
-                }
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0c,0));
-                if (dev) {
-                        bus_ck804b_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_4++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0c);
-
-                        bus_ck804b_4 = bus_ck804b_3+1;
-                }
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0d,0));
-                if (dev) {
-                        bus_ck804b_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_ck804b_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_ck804b_5++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0d);
-
-                     	bus_ck804b_5 = bus_ck804b_4+1;
-                }
-
-#endif
-
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x0e,0));
-                if (dev) {
-                        bus_ck804b_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
-                        bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
-                        bus_isa++;
-                }
-                else {
-                        printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,CK804_DEVN_BASE+0x0e);
-#if 1
-			bus_ck804b_5 = bus_ck804b_0+1;
-#endif
-
-                        bus_isa = bus_ck804b_5+1;
-                }
-   
-        }
-
-
+	get_bus_conf();
 
 /*Bus:		Bus ID	Type*/
        /* define bus and isa numbers */
@@ -284,28 +71,19 @@ void *smp_write_config_table(void *v)
         smp_write_bus(mc, bus_isa, "ISA   ");
 
 /*I/O APICs:	APIC ID	Version	State		Address*/
-#if CONFIG_LOGICAL_CPUS==1
-	apicid_base = get_apicid_base(4);
-#else
-        apicid_base = CONFIG_MAX_PHYSICAL_CPUS; 
-#endif
-	apicid_ck804 = apicid_base;
-	apicid_8131_1 = apicid_base+1;
-	apicid_8131_2 = apicid_base+2;
-	apicid_ck804b = apicid_base+3;
-//	smp_write_ioapic(mc, 2, 0x11, 0xfec00000);
         {
                 device_t dev;
 		struct resource *res;
 		uint32_t dword;
 
-                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(CK804_DEVN_BASE+ 0x1,0));
+                dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x1,0));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_1);
 			if (res) {
 				smp_write_ioapic(mc, apicid_ck804, 0x11, res->base);
 			}
 
+
 			dword = 0x0000d218;
 	        	pci_write_config32(dev, 0x7c, dword);
 
@@ -317,14 +95,14 @@ void *smp_write_config_table(void *v)
 
                 }
 
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x1,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
 			}
                 }
-                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(0x2,1));
+                dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,1));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
@@ -332,7 +110,8 @@ void *smp_write_config_table(void *v)
 			}
                 }
 
-                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(CK804_DEVN_BASE + 0x1,0));
+	    if(pci1234[2] & 0xf) {
+                dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x1,0));
                 if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_1);
 			if (res) {
@@ -349,6 +128,7 @@ void *smp_write_config_table(void *v)
                         pci_write_config32(dev, 0x84, dword);
 
                 }
+	    }
 
 	}
   
@@ -366,81 +146,74 @@ void *smp_write_config_table(void *v)
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xe, apicid_ck804, 0xe);
 	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH,  bus_isa, 0xf, apicid_ck804, 0xf);
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+1)<<2)|1, apicid_ck804, 0xa);
+// Onboard ck804 smbus
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+1)<<2)|1, apicid_ck804, 0xa);
 // 10
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|0, apicid_ck804, 0x15); // 21
+// Onboard ck804 USB 1.1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|0, apicid_ck804, 0x15); // 21
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+2)<<2)|1, apicid_ck804, 0x14); // 20
+// Onboard ck804 USB 2
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+2)<<2)|1, apicid_ck804, 0x14); // 20
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE+4)<<2)|0, apicid_ck804, 0x14); // 20
+// Onboard ck804 Audio
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn+4)<<2)|0, apicid_ck804, 0x14); // 20
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +7)<<2)|0, apicid_ck804, 0x17); // 23
+// Onboard ck804 SATA 0
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +7)<<2)|0, apicid_ck804, 0x17); // 23
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +8)<<2)|0, apicid_ck804, 0x16); // 22
+// Onboard ck804 SATA 1
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +8)<<2)|0, apicid_ck804, 0x16); // 22
 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((CK804_DEVN_BASE +0x0a)<<2)|0, apicid_ck804, 0x15); // 21
+// Onboard ck804 NIC
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_0, ((sbdn +0x0a)<<2)|0, apicid_ck804, 0x15); // 21
 
-#if CK804_DEVN_BASE == 0
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x13); // 19
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x11); // 17
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|0, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|1, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|2, apicid_ck804, 0x13); // 19
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|3, apicid_ck804, 0x10); // 16
-#endif
+//Slot 1 PCIE x16
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_5, (0x00<<2)|i, apicid_ck804, 0x10 + (2+i+4-sbdn%4)%4);
+        }
 
+//Onboard Firewire
         smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x05<<2)|0, apicid_ck804, 0x13); // 19
 
-	smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|0, apicid_ck804, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|1, apicid_ck804, 0x11); // 17
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|2, apicid_ck804, 0x12); // 18
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|3, apicid_ck804, 0x13); // 19
-
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_0, ((CK804_DEVN_BASE+0x0a)<<2)|0, apicid_ck804b, 0x15);//24+4+4+21=53
+//Slot 2 PCI 32
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804_1, (0x04<<2)|i, apicid_ck804, 0x10 + (0+i)%4);
+        }
 
-#if CK804_DEVN_BASE == 0
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|0, apicid_ck804b, 0x12);//18+24+4+4=50
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|1, apicid_ck804b, 0x13); // 19
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|2, apicid_ck804b, 0x10); // 16
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|3, apicid_ck804b, 0x11); // 17
-#else
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|0, apicid_ck804b, 0x11);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|1, apicid_ck804b, 0x12); 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|2, apicid_ck804b, 0x13); 
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|3, apicid_ck804b, 0x10); 
-#endif
+	if(pci1234[2] & 0xf) {
+//Onboard ck804b NIC
+        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_0, ((sbdnb+0x0a)<<2)|0, apicid_ck804b, 0x15);//24+4+4+21=53
 
+//Slot 3 PCIE x16
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_ck804b_5, (0x00<<2)|i, apicid_ck804b, 0x10 + (2+i+4-sbdnb%4)%4);
+        }
+	}
 
 //Channel B of 8131
 
 //Slot 4 PCI-X 100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|0, apicid_8131_2, 0x0); //24+4 = 28
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|1, apicid_8131_2, 0x1);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|2, apicid_8131_2, 0x2); //
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|3, apicid_8131_2, 0x3); //
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (4<<2)|i, apicid_8131_2, (0+i)%4);
+        }
 
 //Slot 5 PCIX 100/66
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|0, apicid_8131_2, 0x1); //24+4+1 = 29
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|1, apicid_8131_2, 0x2);
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|2, apicid_8131_2, 0x3);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|3, apicid_8131_2, 0x0);//
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (9<<2)|i, apicid_8131_2, (1+i)%4); // 29
+        }
 
 //OnBoard LSI SCSI
-
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|0, apicid_8131_2, 0x2); // 24+4+2 = 30
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|1, apicid_8131_2, 0x3);	//	31
+        for(i=0;i<2;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_2, (6<<2)|i, apicid_8131_2, (2+i)%4); //30
+        }
 
 //Channel A of 8131
 
-//Slot 6 PCIX 133/100/66        
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (4<<2)|0, apicid_8131_1, 0x0); // 24
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (4<<2)|1, apicid_8131_1, 0x1);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (4<<2)|2, apicid_8131_1, 0x2);//
-        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (4<<2)|3, apicid_8131_1, 0x3);//
+//Slot 6 PCIX 133/100/66       
+        for(i=0;i<4;i++) {
+                smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8131_1, (4<<2)|i, apicid_8131_1, (0+i)%4); //24
+        }
 
 /*Local Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#*/
 	smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, MP_APIC_ALL, 0x0);