diff --git a/src/mainboard/amd/mahogany/romstage.c b/src/mainboard/amd/mahogany/romstage.c
index 4f98e99a9b..41fa2071ae 100644
--- a/src/mainboard/amd/mahogany/romstage.c
+++ b/src/mainboard/amd/mahogany/romstage.c
@@ -80,21 +80,21 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* Nothing special needs to be done to find bus 0 */
 		/* Allow the HT devices to be found */
 		enumerate_ht_chain();
-		/* sb700_lpc_port80(); */
-		sb700_pci_port80();
+		/* sb7xx_51xx_lpc_port80(); */
+		sb7xx_51xx_pci_port80();
 	}
 
 	if (bist == 0)
 		bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8718f_enable_serial(0, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -119,7 +119,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 	/* Check to see if processor is capable of changing FIDVID  */
 	/* otherwise it will throw a GP# when reading FIDVID_STATUS */
@@ -159,7 +159,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_cache_as_ram();
 }
diff --git a/src/mainboard/amd/mahogany_fam10/romstage.c b/src/mainboard/amd/mahogany_fam10/romstage.c
index 40e8a170b5..7bc96c8f43 100644
--- a/src/mainboard/amd/mahogany_fam10/romstage.c
+++ b/src/mainboard/amd/mahogany_fam10/romstage.c
@@ -88,7 +88,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -101,13 +101,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8718f_enable_serial(0, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -167,7 +167,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
  #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -225,7 +225,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/amd/tilapia_fam10/dsdt.asl b/src/mainboard/amd/tilapia_fam10/dsdt.asl
index 3170a0b89c..93724e351d 100644
--- a/src/mainboard/amd/tilapia_fam10/dsdt.asl
+++ b/src/mainboard/amd/tilapia_fam10/dsdt.asl
@@ -1544,6 +1544,7 @@ DefinitionBlock (
 					0xF300			/* length */
 				)
 
+#if 0
 				Memory32Fixed(READWRITE, 0, 0xA0000, BSMM)
 				Memory32Fixed(READONLY, 0x000A0000, 0x00020000, VGAM) 	/* VGA memory space */
 				Memory32Fixed(READONLY, 0x000C0000, 0x00020000, EMM1)	/* Assume C0000-E0000 empty */
@@ -1585,12 +1586,16 @@ DefinitionBlock (
 					,,
 					PEBM
 				)
+#endif
 
+				/* memory space for PCI BARs below 4GB */
+				Memory32Fixed(ReadOnly, 0x00000000, 0x00000000, MMIO)
 			}) /* End Name(_SB.PCI0.CRES) */
 
 			Method(_CRS, 0) {
 				/* DBGO("\\_SB\\PCI0\\_CRS\n") */
 
+#if 0
 				CreateDWordField(CRES, ^EMM1._BAS, EM1B)
 				CreateDWordField(CRES, ^EMM1._LEN, EM1L)
 				CreateDWordField(CRES, ^DMLO._BAS, DMLB)
@@ -1628,6 +1633,22 @@ DefinitionBlock (
 					ShiftLeft(PBAD,16,EBMB)		/* Reserve the "BIOS" space */
 					Store(PBLN,EBML)
 				}
+#endif
+
+				CreateDWordField(CRES, ^MMIO._BAS, MM1B)
+				CreateDWordField(CRES, ^MMIO._LEN, MM1L)
+				/*
+				 * Declare memory between TOM1 and 4GB as available
+				 * for PCI MMIO.
+				 * Use ShiftLeft to avoid 64bit constant (for XP).
+				 * This will work even if the OS does 32bit arithmetic, as
+				 * 32bit (0x00000000 - TOM1) will wrap and give the same
+				 * result as 64bit (0x100000000 - TOM1).
+				 */
+				Store(TOM1, MM1B)
+				ShiftLeft(0x10000000, 4, Local0)
+				Subtract(Local0, TOM1, Local0)
+				Store(Local0, MM1L)
 
 				Return(CRES) /* note to change the Name buffer */
 			}  /* end of Method(_SB.PCI0._CRS) */
diff --git a/src/mainboard/amd/tilapia_fam10/romstage.c b/src/mainboard/amd/tilapia_fam10/romstage.c
index ea8ec41fdd..fc9d611bba 100644
--- a/src/mainboard/amd/tilapia_fam10/romstage.c
+++ b/src/mainboard/amd/tilapia_fam10/romstage.c
@@ -87,7 +87,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -100,13 +100,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8718f_enable_serial(0, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -166,7 +166,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -224,7 +224,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/asrock/939a785gmh/mainboard.c b/src/mainboard/asrock/939a785gmh/mainboard.c
index c7eedeafb8..1cf1731ce1 100644
--- a/src/mainboard/asrock/939a785gmh/mainboard.c
+++ b/src/mainboard/asrock/939a785gmh/mainboard.c
@@ -168,7 +168,7 @@ struct chip_operations mainboard_ops = {
 };
 
 /* override the default SATA PHY setup */
-void sb700_setup_sata_phys(struct device *dev) {
+void sb7xx_51xx_setup_sata_phys(struct device *dev) {
 	/* RPR7.6.1 Program the PHY Global Control to 0x2C00 */
 	pci_write_config16(dev, 0x86, 0x2c00);
 
diff --git a/src/mainboard/asrock/939a785gmh/romstage.c b/src/mainboard/asrock/939a785gmh/romstage.c
index 051f6e957b..ce79e0d204 100644
--- a/src/mainboard/asrock/939a785gmh/romstage.c
+++ b/src/mainboard/asrock/939a785gmh/romstage.c
@@ -146,22 +146,22 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* Nothing special needs to be done to find bus 0 */
 		/* Allow the HT devices to be found */
 		enumerate_ht_chain();
-		/* sb700_lpc_port80(); */
-		sb700_pci_port80();
+		/* sb7xx_51xx_lpc_port80(); */
+		sb7xx_51xx_pci_port80();
 	}
 
 	if (bist == 0)
 		bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	sio_init();
 	w83627dhg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -186,7 +186,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 	/* Check to see if processor is capable of changing FIDVID  */
 	/* otherwise it will throw a GP# when reading FIDVID_STATUS */
@@ -226,7 +226,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_cache_as_ram();
 }
diff --git a/src/mainboard/asus/m4a78-em/romstage.c b/src/mainboard/asus/m4a78-em/romstage.c
index 4c9543beb1..56204fb230 100644
--- a/src/mainboard/asus/m4a78-em/romstage.c
+++ b/src/mainboard/asus/m4a78-em/romstage.c
@@ -87,7 +87,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -100,14 +100,14 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8712f_enable_serial(0, CONFIG_TTYS0_BASE);
 	it8712f_kill_watchdog();
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -167,7 +167,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
  #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -225,7 +225,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/asus/m4a785-m/romstage.c b/src/mainboard/asus/m4a785-m/romstage.c
index 4c9543beb1..56204fb230 100644
--- a/src/mainboard/asus/m4a785-m/romstage.c
+++ b/src/mainboard/asus/m4a785-m/romstage.c
@@ -87,7 +87,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -100,14 +100,14 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8712f_enable_serial(0, CONFIG_TTYS0_BASE);
 	it8712f_kill_watchdog();
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -167,7 +167,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
  #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -225,7 +225,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/gigabyte/ma785gmt/romstage.c b/src/mainboard/gigabyte/ma785gmt/romstage.c
index 7826661042..d80df62b4e 100644
--- a/src/mainboard/gigabyte/ma785gmt/romstage.c
+++ b/src/mainboard/gigabyte/ma785gmt/romstage.c
@@ -83,7 +83,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -96,14 +96,14 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8718f_enable_serial(0, CONFIG_TTYS0_BASE);
 	it8718f_disable_reboot();
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -163,7 +163,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -221,7 +221,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/gigabyte/ma78gm/romstage.c b/src/mainboard/gigabyte/ma78gm/romstage.c
index 15ae9024c5..77e73b8c75 100644
--- a/src/mainboard/gigabyte/ma78gm/romstage.c
+++ b/src/mainboard/gigabyte/ma78gm/romstage.c
@@ -87,7 +87,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -100,14 +100,14 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	it8718f_enable_serial(0, CONFIG_TTYS0_BASE);
 	it8718f_disable_reboot();
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -165,7 +165,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -223,7 +223,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/iei/kino-780am2-fam10/romstage.c b/src/mainboard/iei/kino-780am2-fam10/romstage.c
index d4f2dc0a72..18fde1c7b5 100644
--- a/src/mainboard/iei/kino-780am2-fam10/romstage.c
+++ b/src/mainboard/iei/kino-780am2-fam10/romstage.c
@@ -89,7 +89,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -102,13 +102,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	f71859_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -168,7 +168,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
  #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -226,7 +226,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/mainboard/jetway/pa78vm5/romstage.c b/src/mainboard/jetway/pa78vm5/romstage.c
index 629b13a078..05b0e8b40a 100644
--- a/src/mainboard/jetway/pa78vm5/romstage.c
+++ b/src/mainboard/jetway/pa78vm5/romstage.c
@@ -94,7 +94,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* mov bsp to bus 0xff when > 8 nodes */
 		set_bsp_node_CHtExtNodeCfgEn();
 		enumerate_ht_chain();
-		sb700_pci_port80();
+		sb7xx_51xx_pci_port80();
 	}
 
 	post_code(0x30);
@@ -107,13 +107,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	post_code(0x32);
 
 	enable_rs780_dev8();
-	sb700_lpc_init();
+	sb7xx_51xx_lpc_init();
 
 	f71863fg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
 	uart_init();
 
 #if CONFIG_USBDEBUG
-	sb700_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
+	sb7xx_51xx_enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT);
 	early_usbdebug_init();
 #endif
 
@@ -173,7 +173,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 	/* run _early_setup before soft-reset. */
 	rs780_early_setup();
-	sb700_early_setup();
+	sb7xx_51xx_early_setup();
 
 #if CONFIG_SET_FIDVID
 	msr = rdmsr(0xc0010071);
@@ -231,7 +231,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 //	die("After MCT init before CAR disabled.");
 
 	rs780_before_pci_init();
-	sb700_before_pci_init();
+	sb7xx_51xx_before_pci_init();
 
 	post_code(0x42);
 	printk(BIOS_DEBUG, "\n*** Yes, the copy/decompress is taking a while, FIXME!\n");
diff --git a/src/southbridge/amd/sb700/Kconfig b/src/southbridge/amd/sb700/Kconfig
index 49cf476dd2..b4cae56998 100644
--- a/src/southbridge/amd/sb700/Kconfig
+++ b/src/southbridge/amd/sb700/Kconfig
@@ -23,21 +23,26 @@ config SOUTHBRIDGE_AMD_SB700
 	select HAVE_USBDEBUG
 	select TINY_BOOTBLOCK
 
+config SOUTHBRIDGE_AMD_SP5100
+	bool
+	select IOAPIC
+	select HAVE_USBDEBUG
+	select TINY_BOOTBLOCK
+
 config BOOTBLOCK_SOUTHBRIDGE_INIT
 	string
 	default "southbridge/amd/sb700/bootblock.c"
-	depends on SOUTHBRIDGE_AMD_SB700
+	depends on (SOUTHBRIDGE_AMD_SB700 || SOUTHBRIDGE_AMD_SP5100)
 
 config SOUTHBRIDGE_AMD_SB700_SKIP_ISA_DMA_INIT
 	bool
 	default n
-	depends on SOUTHBRIDGE_AMD_SB700
+	depends on (SOUTHBRIDGE_AMD_SB700 || SOUTHBRIDGE_AMD_SP5100)
 
 config EHCI_BAR
 	hex
-	default 0xfef00000 if SOUTHBRIDGE_AMD_SB700
+	default 0xfef00000 if (SOUTHBRIDGE_AMD_SB700 || SOUTHBRIDGE_AMD_SP5100)
 
 config EHCI_DEBUG_OFFSET
 	hex
-	default 0xe0 if SOUTHBRIDGE_AMD_SB700
-
+	default 0xe0 if (SOUTHBRIDGE_AMD_SB700 || SOUTHBRIDGE_AMD_SP5100)
diff --git a/src/southbridge/amd/sb700/bootblock.c b/src/southbridge/amd/sb700/bootblock.c
index bf83823197..377bffc780 100644
--- a/src/southbridge/amd/sb700/bootblock.c
+++ b/src/southbridge/amd/sb700/bootblock.c
@@ -38,8 +38,7 @@ static void sb700_enable_rom(void)
 	u8 reg8;
 	device_t dev;
 
-	dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_ATI,
-				       PCI_DEVICE_ID_ATI_SB700_LPC), 0);
+	dev = PCI_DEV(0, 0x14, 3);
 
 	/* Decode variable LPC ROM address ranges 1 and 2. */
 	reg8 = pci_read_config8(dev, 0x48);
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c
index 383b24f577..7345cdeca3 100644
--- a/src/southbridge/amd/sb700/early_setup.c
+++ b/src/southbridge/amd/sb700/early_setup.c
@@ -43,6 +43,7 @@ static u8 pmio_read(u8 reg)
 
 static void sb700_acpi_init(void)
 {
+	u16 word;
 	pmio_write(0x20, ACPI_PM_EVT_BLK & 0xFF);
 	pmio_write(0x21, ACPI_PM_EVT_BLK >> 8);
 	pmio_write(0x22, ACPI_PM1_CNT_BLK & 0xFF);
@@ -67,6 +68,9 @@ static void sb700_acpi_init(void)
 					* index 20-2B to decode ACPI I/O address.
 					* AcpiSmiEn & SmiCmdEn*/
 	pmio_write(0x10, 1<<1 | 1<<3| 1<<5); /* RTC_En_En, TMR_En_En, GBL_EN_EN */
+	word = inl(ACPI_PM1_CNT_BLK);
+	word |= 1;
+	outl(word, ACPI_PM1_CNT_BLK);		  /* set SCI_EN */
 }
 
 /* RPR 2.28: Get SB ASIC Revision. */
@@ -125,7 +129,7 @@ static u8 set_sb700_revision(void)
 *	Console output through any port besides 0x3f8 is unsupported.
 *	If you use FWH ROMs, you have to setup IDSEL.
 ***************************************/
-static void sb700_lpc_init(void)
+static void sb7xx_51xx_lpc_init(void)
 {
 	u8 reg8;
 	u32 reg32;
@@ -145,11 +149,25 @@ static void sb700_lpc_init(void)
 	reg32 |= 1 << 20;
 	pci_write_config32(dev, 0x64, reg32);
 
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+	post_code(0x66);
+	dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0);     /* LPC Controller */
+	reg8 = pci_read_config8(dev, 0xBB);
+	reg8 |= 1 << 2 | 1 << 3 | 1 << 6 | 1 << 7;
+	reg8 &= ~(1 << 1);
+	pci_write_config8(dev, 0xBB, reg8);
+#endif
+
 	dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0);	/* LPC Controller */
 	/* Decode port 0x3f8-0x3ff (Serial 0) */
 	// XXX Serial port decode on LPC is hardcoded to 0x3f8
 	reg8 = pci_read_config8(dev, 0x44);
 	reg8 |= 1 << 6;
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+#if CONFIG_TTYS0_BASE == 0x2f8
+	reg8 |= 1 << 7;
+#endif
+#endif
 	pci_write_config8(dev, 0x44, reg8);
 
 	/* Decode port 0x60 & 0x64 (PS/2 keyboard) and port 0x62 & 0x66 (ACPI)*/
@@ -171,6 +189,32 @@ static void sb700_lpc_init(void)
 	pci_write_config8(dev, 0x48, reg8);
 }
 
+void sb7xx_51xx_enable_wideio(u8 wio_index, u16 base)
+{
+	/* TODO: Now assume wio_index=0 */
+	device_t dev;
+	u8 reg8;
+
+	dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0);	/* LPC Controller */
+	pci_write_config32(dev, 0x64, base);
+	reg8 = pci_read_config8(dev, 0x48);
+	reg8 |= 1 << 2;
+	pci_write_config8(dev, 0x48, reg8);
+}
+
+void sb7xx_51xx_disable_wideio(u8 wio_index)
+{
+	/* TODO: Now assume wio_index=0 */
+	device_t dev;
+	u8 reg8;
+
+	dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0);	/* LPC Controller */
+	pci_write_config32(dev, 0x64, 0);
+	reg8 = pci_read_config8(dev, 0x48);
+	reg8 &= ~(1 << 2);
+	pci_write_config8(dev, 0x48, reg8);
+}
+
 /* what is its usage? */
 static u32 get_sbdn(u32 bus)
 {
@@ -256,7 +300,7 @@ void soft_reset(void)
 	outb(0x06, 0x0cf9);
 }
 
-void sb700_pci_port80(void)
+void sb7xx_51xx_pci_port80(void)
 {
 	u8 byte;
 	device_t dev;
@@ -301,7 +345,7 @@ void sb700_pci_port80(void)
 	pci_write_config8(dev, 0x4A, byte);
 }
 
-void sb700_lpc_port80(void)
+void sb7xx_51xx_lpc_port80(void)
 {
 	u8 byte;
 	device_t dev;
@@ -325,6 +369,9 @@ static void sb700_devices_por_init(void)
 {
 	device_t dev;
 	u8 byte;
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+	u32 dword;
+#endif
 
 	printk(BIOS_INFO, "sb700_devices_por_init()\n");
 	/* SMBus Device, BDF:0-20-0 */
@@ -417,8 +464,25 @@ static void sb700_devices_por_init(void)
 	/* DMA enable */
 	pci_write_config8(dev, 0x40, 0x04);
 
-	/* LPC Sync Timeout */
+	/* IO Port Decode Enable */
+	pci_write_config8(dev, 0x44, 0xFF);
+	pci_write_config8(dev, 0x45, 0xFF);
+	pci_write_config8(dev, 0x46, 0xC3);
+	pci_write_config8(dev, 0x47, 0xFF);
+
+	// TODO: This has already been done(?)
+	/* IO/Mem Port Decode Enable, I don't know why CIM disable some ports.
+	 *  Disable LPC TimeOut counter, enable SuperIO Configuration Port (2e/2f),
+	 * Alternate Super I/O Configuration Port (4e/4f), Wide Generic IO Port (64/65). */
+	byte = pci_read_config8(dev, 0x48);
+	byte |= (1 << 1) | (1 << 0);	/* enable Super IO config port 2e-2h, 4e-4f */
+	byte |= 1 << 6;		/* enable for RTC I/O range */
+	pci_write_config8(dev, 0x48, byte);
 	pci_write_config8(dev, 0x49, 0xFF);
+	/* Enable 0x480-0x4bf, 0x4700-0x470B */
+	byte = pci_read_config8(dev, 0x4A);
+	byte |= ((1 << 1) + (1 << 6));	/*0x42, save the configuraion for port 0x80. */
+	pci_write_config8(dev, 0x4A, byte);
 
 	/* Enable Tpm12_en and Tpm_legacy. I don't know what is its usage and copied from CIM. */
 	pci_write_config8(dev, 0x7C, 0x05);
@@ -441,6 +505,29 @@ static void sb700_devices_por_init(void)
 	/* Enable PCIB_DUAL_EN_UP will fix potential problem with PCI cards. */
 	pci_write_config8(dev, 0x50, 0x01);
 
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+	/* SP5100 default SATA mode is RAID5 MODE */
+	dev = pci_locate_device(PCI_ID(0x1002, 0x4393), 0);
+	/* Set SATA Operation Mode, Set to IDE mode */
+	byte = pci_read_config8(dev, 0x40);
+	byte |= (1 << 0);
+	pci_write_config8(dev, 0x40, byte);
+
+	dword = 0x01018f00;
+	pci_write_config32(dev, 0x8, dword);
+
+	/* set SATA Device ID writable */
+	dword = pci_read_config32(dev, 0x40);
+	dword &= ~(1 << 24);
+	pci_write_config32(dev, 0x40, dword);
+
+	/* set Device ID accommodate with IDE emulation mode configuration*/
+	pci_write_config32(dev, 0x0, 0x43901002);
+
+	/* rpr v2.13 4.17 Reset CPU on Sync Flood */
+	abcfg_reg(0x10050, 1 << 2, 1 << 2);
+#endif
+
 	/* SATA Device, BDF:0-17-0, Non-Raid-5 SATA controller */
 	printk(BIOS_INFO, "sb700_devices_por_init(): SATA Device, BDF:0-18-0\n");
 	dev = pci_locate_device(PCI_ID(0x1002, 0x4390), 0);
@@ -594,7 +681,7 @@ static void sb700_por_init(void)
 /*
 * It should be called during early POST after memory detection and BIOS shadowing but before PCI bus enumeration.
 */
-static void sb700_before_pci_init(void)
+static void sb7xx_51xx_before_pci_init(void)
 {
 	sb700_pci_cfg();
 }
@@ -602,7 +689,7 @@ static void sb700_before_pci_init(void)
 /*
 * This function should be called after enable_sb700_smbus().
 */
-static void sb700_early_setup(void)
+static void sb7xx_51xx_early_setup(void)
 {
 	printk(BIOS_INFO, "sb700_early_setup()\n");
 	sb700_por_init();
diff --git a/src/southbridge/amd/sb700/enable_usbdebug.c b/src/southbridge/amd/sb700/enable_usbdebug.c
index d74a9bbc9f..b8d584a73c 100644
--- a/src/southbridge/amd/sb700/enable_usbdebug.c
+++ b/src/southbridge/amd/sb700/enable_usbdebug.c
@@ -45,7 +45,7 @@ void set_debug_port(unsigned int port)
  * This code currently only supports the first one, i.e., USB Debug devices
  * attached to physical USB ports belonging to the first EHCI device.
  */
-void sb700_enable_usbdebug(unsigned int port)
+void sb7xx_51xx_enable_usbdebug(unsigned int port)
 {
 	device_t dev = PCI_DEV(0, 0x12, 2); /* USB EHCI, D18:F2 */
 
diff --git a/src/southbridge/amd/sb700/lpc.c b/src/southbridge/amd/sb700/lpc.c
index fda99d6e38..273aabc128 100644
--- a/src/southbridge/amd/sb700/lpc.c
+++ b/src/southbridge/amd/sb700/lpc.c
@@ -63,6 +63,12 @@ static void lpc_init(device_t dev)
 	/* Disable LPC MSI Capability */
 	byte = pci_read_config8(dev, 0x78);
 	byte &= ~(1 << 1);
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+	/* Disable FlowContrl, Always service the request from Host
+	 * whenever there is a request from Host pending
+	 */
+	byte &= ~(1 << 0);
+#endif
 	pci_write_config8(dev, 0x78, byte);
 
 	/* hack, but the whole sb700 startup lacks any device which
diff --git a/src/southbridge/amd/sb700/sata.c b/src/southbridge/amd/sb700/sata.c
index 1ad9bdd9df..4838d93658 100644
--- a/src/southbridge/amd/sb700/sata.c
+++ b/src/southbridge/amd/sb700/sata.c
@@ -54,7 +54,7 @@ static int sata_drive_detect(int portnum, u16 iobar)
 }
 
 /* This function can be overloaded in mainboard.c */
-void __attribute__((weak)) sb700_setup_sata_phys(struct device *dev)
+void __attribute__((weak)) sb7xx_51xx_setup_sata_phys(struct device *dev)
 {
 	/* RPR7.6.1 Program the PHY Global Control to 0x2C00 */
 	pci_write_config16(dev, 0x86, 0x2c00);
@@ -184,12 +184,17 @@ static void sata_init(struct device *dev)
 	/* Program the watchdog counter to 0x10 */
 	byte = 0x10;
 	pci_write_config8(dev, 0x46, byte);
-	sb700_setup_sata_phys(dev);
+	sb7xx_51xx_setup_sata_phys(dev);
 	/* Enable the I/O, MM, BusMaster access for SATA */
 	byte = pci_read_config8(dev, 0x4);
 	byte |= 7 << 0;
 	pci_write_config8(dev, 0x4, byte);
 
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+	/* Master Latency Timer */
+	pci_write_config32(dev, 0xC, 0x00004000);
+#endif
+
 	/* RPR7.7 SATA drive detection. */
 	/* Use BAR5+0x128,BAR0 for Primary Slave */
 	/* Use BAR5+0x1A8,BAR0 for Primary Slave */
diff --git a/src/southbridge/amd/sb700/sb700.c b/src/southbridge/amd/sb700/sb700.c
index 05c855a406..6132d2b7b2 100644
--- a/src/southbridge/amd/sb700/sb700.c
+++ b/src/southbridge/amd/sb700/sb700.c
@@ -104,7 +104,7 @@ static void set_pmio_enable_bits(device_t sm_dev, u32 reg_pos,
 	}
 }
 
-void sb700_enable(device_t dev)
+void sb7xx_51xx_enable(device_t dev)
 {
 	device_t sm_dev = 0;
 	device_t bus_dev = 0;
@@ -118,7 +118,7 @@ void sb700_enable(device_t dev)
 
 	u32 devfn;
 
-	printk(BIOS_DEBUG, "sb700_enable()\n");
+	printk(BIOS_DEBUG, "sb7xx_51xx_enable()\n");
 
 	/*
 	 * 0:11.0  SATA	bit 8 of sm_dev 0xac : 1 - enable, default         + 32 * 3
@@ -161,7 +161,7 @@ void sb700_enable(device_t dev)
 	}
 
 	i = (dev->path.pci.devfn) & ~7;
-	i += (2 << 3);
+	i += (3 << 3);
 	for (devfn = (0x14 << 3); devfn <= i; devfn += (1 << 3)) {
 		sm_dev = find_sm_dev(dev, devfn);
 		if (sm_dev)
@@ -226,7 +226,14 @@ void sb700_enable(device_t dev)
 	}
 }
 
+#ifdef CONFIG_SOUTHBRIDGE_AMD_SP5100
+struct chip_operations southbridge_amd_sp5100_ops = {
+	CHIP_NAME("ATI SP5100")
+	.enable_dev = sb7xx_51xx_enable,
+};
+#else
 struct chip_operations southbridge_amd_sb700_ops = {
 	CHIP_NAME("ATI SB700")
-	.enable_dev = sb700_enable,
+	.enable_dev = sb7xx_51xx_enable,
 };
+#endif
diff --git a/src/southbridge/amd/sb700/sb700.h b/src/southbridge/amd/sb700/sb700.h
index 4ab21c8211..741d244b86 100644
--- a/src/southbridge/amd/sb700/sb700.h
+++ b/src/southbridge/amd/sb700/sb700.h
@@ -35,7 +35,7 @@
 
 #define ACPI_PM_EVT_BLK		(SB700_ACPI_IO_BASE + 0x00) /* 4 bytes */
 #define ACPI_PM1_CNT_BLK	(SB700_ACPI_IO_BASE + 0x04) /* 2 bytes */
-#define ACPI_PMA_CNT_BLK	(SB700_ACPI_IO_BASE + 0x0F) /* 1 byte */
+#define ACPI_PMA_CNT_BLK	(SB700_ACPI_IO_BASE + 0x0E) /* 1 byte */
 #define ACPI_PM_TMR_BLK		(SB700_ACPI_IO_BASE + 0x18) /* 4 bytes */
 #define ACPI_GPE0_BLK		(SB700_ACPI_IO_BASE + 0x10) /* 8 bytes */
 #define ACPI_CPU_CONTROL	(SB700_ACPI_IO_BASE + 0x08) /* 6 bytes */
@@ -58,20 +58,22 @@ extern void set_sm_enable_bits(device_t sm_dev, u32 reg_pos, u32 mask, u32 val);
  * The differentiate is 0x28, isn't it? */
 #define get_sb700_revision(sm_dev)	(pci_read_config8((sm_dev), 0x08) - 0x28)
 
-void sb700_enable(device_t dev);
+void sb7xx_51xx_enable(device_t dev);
 
 #ifdef __PRE_RAM__
-void sb700_lpc_port80(void);
-void sb700_pci_port80(void);
+void sb7xx_51xx_lpc_port80(void);
+void sb7xx_51xx_pci_port80(void);
+void sb7xx_51xx_enable_wideio(u8 wio_index, u16 base);
+void sb7xx_51xx_disable_wideio(u8 wio_index);
 #else
 #include <device/pci.h>
 /* allow override in mainboard.c */
-void sb700_setup_sata_phys(struct device *dev);
+void sb7xx_51xx_setup_sata_phys(struct device *dev);
 
 #endif
 
 int s3_save_nvram_early(u32 dword, int size, int  nvram_pos);
 int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos);
 
-void sb700_enable_usbdebug(unsigned int port);
+void sb7xx_51xx_enable_usbdebug(unsigned int port);
 #endif /* SB700_H */
diff --git a/src/southbridge/amd/sb700/sm.c b/src/southbridge/amd/sb700/sm.c
index 69df215f52..7d341df327 100644
--- a/src/southbridge/amd/sb700/sm.c
+++ b/src/southbridge/amd/sb700/sm.c
@@ -49,6 +49,7 @@ static void sm_init(device_t dev)
 {
 	u8 byte;
 	u8 byte_old;
+	u8 rev;
 	u32 dword;
 	u32 ioapic_base;
 	u32 on;
@@ -56,6 +57,7 @@ static void sm_init(device_t dev)
 
 	printk(BIOS_INFO, "sm_init().\n");
 
+	rev = get_sb700_revision(dev);
 	ioapic_base = pci_read_config32(dev, 0x74) & (0xffffffe0);	/* some like mem resource, but does not have  enable bit */
 	/* Don't rename APIC ID */
 	/* TODO: We should call setup_ioapic() here. But kernel hangs if cpu is K8.
@@ -161,6 +163,21 @@ static void sm_init(device_t dev)
 		outb(byte, 0x70);
 	}
 
+	/*rpr v2.13  2.22 SMBUS PCI Config */
+ 	byte = pci_read_config8(dev, 0xE1);
+	if ((REV_SB700_A11 == rev) || REV_SB700_A12 == rev) {
+		byte |= 1 << 0;
+	}
+	/*Set bit2 to 1, enable Io port 60h read/wrire SMi trapping and
+	 *Io port 64h write Smi trapping. conflict with ps2 keyboard
+	 */
+	//byte |= 1 << 2 | 1 << 3 | 1 << 4;
+	byte |= 1 << 3 | 1 << 4;
+ 	pci_write_config8(dev, 0xE1, byte);
+
+	/* 2.5 Enabling Non-Posted Memory Write */
+       	axindxc_reg(0x10, 1 << 9, 1 << 9);
+
 	/* 2.11 IO Trap Settings */
 	abcfg_reg(0x10090, 1 << 16, 1 << 16);
 
@@ -180,8 +197,17 @@ static void sm_init(device_t dev)
 
 	/* 4.6 B-Link Client's Credit Variable Settings for the Downstream Arbitration Equation */
 	/* 4.7 Enabling Additional Address Bits Checking in Downstream */
-	/* 4.15 IO write and SMI ordering enhancement*/
-	abcfg_reg(0x9c, 3 << 0 | 1 << 8, 3 << 0 | 1 << 8);
+	/* 4.16 IO write and SMI ordering enhancement*/
+	abcfg_reg(0x9c, 3 << 0, 3 << 0);
+	if (REV_SB700_A12 == rev) {
+		abcfg_reg(0x9c, 1 << 8, 1 << 8);
+	} else if (rev >= REV_SB700_A14) {
+		abcfg_reg(0x9c, 1 << 8, 0 << 8);
+	}
+	if (REV_SB700_A15 == rev) {
+		abcfg_reg(0x90, 1 << 21, 1 << 21);
+		abcfg_reg(0x9c, 1 << 5 | 1 << 9 | 1 << 15, 1 << 5 | 1 << 9 | 1 << 15);
+	}
 
 	/* 4.8 Set B-Link Prefetch Mode */
 	abcfg_reg(0x80, 3 << 17, 3 << 17);
@@ -193,6 +219,44 @@ static void sm_init(device_t dev)
 	 *  Transactions for the K8 Platform (for All Revisions) */
 	abcfg_reg(0x10090, 1 << 8, 1 << 8);
 
+	/* ACPI_SOFT_CLOCK_THROTTLE_PERIOD */
+	byte = pm_ioread(0x68);
+	byte &= ~(3 << 6);
+	byte |= (2 << 6);	/* 224us */
+	pm_iowrite(0x68, byte);
+
+	if (REV_SB700_A15 == rev) {
+		u16 word;
+
+		/* rpr v2.13 4.18 Enabling Posted Pass Non-Posted Downstream */
+        	axindxc_reg(0x02, 1 << 9, 1 << 9);
+		abcfg_reg(0x9C, 0x00007CC0, 0x00007CC0);
+		abcfg_reg(0x1009C, 0x00000030, 0x00000030);
+		abcfg_reg(0x10090, 0x00001E00, 0x00001E00);
+
+		/* rpr v2.13 4.19 Enabling Posted Pass Non-Posted Upstream */
+		abcfg_reg(0x58, 0x0000F800, 0x0000E800);
+
+		/* rpr v2.13 4.20 64 bit Non-Posted Memory Write Support */
+        	axindxc_reg(0x02, 1 << 10, 1 << 10);
+
+		/* rpr v2.13 2.38 Unconditional Shutdown */
+ 		byte = pci_read_config8(dev, 0x43);
+		byte &= ~(1 << 3);
+ 		pci_write_config8(dev, 0x43, byte);
+
+		word = pci_read_config16(dev, 0x38);
+		word |= 1 << 12;
+ 		pci_write_config16(dev, 0x38, word);
+
+		byte |= 1 << 3;
+ 		pci_write_config8(dev, 0x43, byte);
+	}
+	//ACPI_DISABLE_TIMER_IRQ_ENHANCEMENT_FOR_8254_TIMER
+ 	byte = pci_read_config8(dev, 0xAE);
+	byte |= 1 << 5;
+ 	pci_write_config8(dev, 0xAE, byte);
+
 	/* 4.11:Programming Cycle Delay for AB and BIF Clock Gating */
 	/* 4.12: Enabling AB and BIF Clock Gating */
 	abcfg_reg(0x10054, 0xFFFF0000, 0x1040000);
@@ -292,20 +356,10 @@ static struct smbus_bus_operations lops_smbus_bus = {
 static void sb700_sm_read_resources(device_t dev)
 {
 	struct resource *res;
-	u8 byte;
-
-	/* rpr2.14: Hides SM bus controller Bar1 where stores HPET MMIO base address */
-	byte = pm_ioread(0x55);
-	byte |= 1 << 7;
-	pm_iowrite(0x55, byte);
 
 	/* Get the normal pci resources of this device */
 	/* pci_dev_read_resources(dev); */
 
-	byte = pm_ioread(0x55);
-	byte &= ~(1 << 7);
-	pm_iowrite(0x55, byte);
-
 	/* apic */
 	res = new_resource(dev, 0x74);
 	res->base  = IO_APIC_ADDR;
@@ -315,15 +369,15 @@ static void sb700_sm_read_resources(device_t dev)
 	res->gran = 8;
 	res->flags = IORESOURCE_MEM | IORESOURCE_FIXED;
 
-	#if 0			       /* Linux ACPI crashes when it is 1. For late debugging. */
-	res = new_resource(dev, 0x14); /* TODO: hpet */
+	/* Linux ACPI crashes when it is 1. For late debugging. */
+	res = new_resource(dev, 0xB4);	/* TODO: test hpet */
 	res->base  = 0xfed00000;	/* reset hpet to widely accepted address */
 	res->size = 0x400;
 	res->limit = 0xFFFFFFFFUL;	/* res->base + res->size -1; */
 	res->align = 8;
 	res->gran = 8;
 	res->flags = IORESOURCE_MEM | IORESOURCE_FIXED;
-	#endif
+
 	/* dev->command |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; */
 
 	/* smbus */
@@ -344,18 +398,34 @@ static void sb700_sm_set_resources(struct device *dev)
 	u8 byte;
 
 	pci_dev_set_resources(dev);
-
-	/* rpr2.14: Make HPET MMIO decoding controlled by the memory enable bit in command register of LPC ISA bridge */
-	byte = pm_ioread(0x52);
-	byte |= 1 << 6;
-	pm_iowrite(0x52, byte);
-
 	res = find_resource(dev, 0x74);
 	pci_write_config32(dev, 0x74, res->base | 1 << 3);
-#if 0				/* TODO:hpet */
-	res = find_resource(dev, 0x14);
-	pci_write_config32(dev, 0x14, res->base);
+
+	/* TODO: test hpet */
+#if 0	//rrg-2.0.3 shows BAR1 not used
+	/* Make SMBUS BAR1(HPET base at offset 14h) visible */
+	byte = pci_read_config8(dev, 0x43);
+	byte &= ~(1 << 3);
+	pci_write_config8(dev, 0x43, byte);
 #endif
+
+	res = find_resource(dev, 0xB4);
+	/* Program HPET BAR Address */
+	pci_write_config32(dev, 0xB4, res->base);
+
+	/* Enable decoding of HPET MMIO, enable HPET MSI */
+	byte = pci_read_config8(dev, 0x43);
+	//byte |= (1 << 3); // Make SMBus Bar1 invisible
+	//byte |= ((1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+	byte |= (1 << 4);
+	pci_write_config8(dev, 0x43, byte);
+
+	/* Enable HPET irq */
+	byte = pci_read_config8(dev, 0x65);
+	byte |= (1 << 2);
+	pci_write_config8(dev, 0x65, byte);
+	/* TODO: End of test hpet */
+
 	res = find_resource(dev, 0x90);
 	pci_write_config32(dev, 0x90, res->base | 1);
 }
diff --git a/src/southbridge/amd/sb700/usb.c b/src/southbridge/amd/sb700/usb.c
index 3b3ad584a7..2957dc5aca 100644
--- a/src/southbridge/amd/sb700/usb.c
+++ b/src/southbridge/amd/sb700/usb.c
@@ -34,6 +34,7 @@ static void usb_init(struct device *dev)
 {
 	u8 byte;
 	u16 word;
+	u32 dword;
 
 	/* 6.1 Enable OHCI0-4 and EHCI Controllers */
 	device_t sm_dev;
@@ -60,10 +61,21 @@ static void usb_init(struct device *dev)
 	byte |= (1 << 4);
 	pm_iowrite(0x65, byte);
 
+	/* USB_ADVANCED_SLEEP_CONTROL */
+	byte = pm_ioread(0x95);
+	byte &= ~(7 << 0);
+	byte |= 6 << 0;		/* Advanced sleep up to 6 uframes */
+	pm_iowrite(0x95, byte);
+
 	/* RPR 6.10 Disable OHCI MSI Capability. */
 	word = pci_read_config16(dev, 0x40);
 	word |= (0x3 << 8);
 	pci_write_config16(dev, 0x40, word);
+
+	/* USB-1_OHCI0_Corner Case S3 Wake Up */
+	dword = pci_read_config32(dev, 0x50);
+	dword |= (1 << 16);
+	pci_write_config32(dev, 0x50, dword);
 }
 
 static void usb_init2(struct device *dev)
@@ -99,11 +111,9 @@ static void usb_init2(struct device *dev)
 	/* RPR 6.12 EHCI Advance PHY Power Savings */
 	/* RPR says it is just for A12. CIMM sets it when it is above A11. */
 	/* But it makes the linux crash, so we skip it */
-	#if 0
 	dword = pci_read_config32(dev, 0x50);
 	dword |= 1 << 31;
 	pci_write_config32(dev, 0x50, dword);
-	#endif
 
 	/* RPR6.13 Enabling Fix for EHCI Controller Driver Yellow Sign Issue */
 	/* RPR says it is just for A12. CIMx sets it when it is above A11. */
@@ -118,7 +128,6 @@ static void usb_init2(struct device *dev)
 
 	/* Each step below causes the linux crashes. Leave them here
 	 * for future debugging. */
-#if 0
 	u8 byte;
 	u16 word;
 
@@ -139,6 +148,13 @@ static void usb_init2(struct device *dev)
 		pci_write_config8(dev, 0x50, byte);
 	}
 
+	/* SB700_A15, USB-2_EHCI_PID_ERROR_CHECKING */
+	if (rev == REV_SB700_A15) {
+		word = pci_read_config16(dev, 0x50);
+		word |= (1 << 9);
+		pci_write_config16(dev, 0x50, word);
+	}
+
 	/* RPR6.20 Async Park Mode. */
 	/* RPR recommends not to set these bits. */
 	#if 0
@@ -163,7 +179,6 @@ static void usb_init2(struct device *dev)
 		dword &= ~(1 << 27); /* 6.23 */
 	}
 	printk(BIOS_DEBUG, "rpr 6.23, final dword=%x\n", dword);
-#endif
 }
 
 static void usb_set_resources(struct device *dev)
diff --git a/src/southbridge/amd/sp5100/chip.h b/src/southbridge/amd/sp5100/chip.h
new file mode 100644
index 0000000000..569e511108
--- /dev/null
+++ b/src/southbridge/amd/sp5100/chip.h
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef SP5100_CHIP_H
+#define SP5100_CHIP_H
+
+struct southbridge_amd_sp5100_config
+{
+	u32 ide0_enable : 1;
+	u32 sata0_enable : 1;
+	u32 boot_switch_sata_ide : 1;
+	u32 hda_viddid;
+};
+struct chip_operations;
+extern struct chip_operations southbridge_amd_sp5100_ops;
+
+#endif /* SP5100_CHIP_H */