diff --git a/src/include/device/pci_ids.h b/src/include/device/pci_ids.h
index 5dbd111..6286cd6 100644
--- a/src/include/device/pci_ids.h
+++ b/src/include/device/pci_ids.h
@@ -365,6 +365,23 @@
 #define PCI_DEVICE_ID_ATI_RS785MC_INT_GFX	0x9713
 #define PCI_DEVICE_ID_ATI_RS785D_INT_GFX	0x9714
 
+#define PCI_DEVICE_ID_AMD_SR5650_HT            0x5A13
+#define PCI_DEVICE_ID_AMD_SR5670_HT            0x5A12
+#define PCI_DEVICE_ID_AMD_SR5690_HT            0x5A10
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE          0x5A12
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV2     0x5A16
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV3     0x5A17
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV4     0x5A18
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV5     0x5A19
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV6     0x5A1A
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV7     0x5A1B
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV9     0x5A1C
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV10    0x5A1D
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV11    0x5A1F
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV12    0x5A20
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV13    0x5A1E
+#define PCI_DEVICE_ID_AMD_SR5650_PCIE_DEV8     0x5A21
+
 #define PCI_VENDOR_ID_VLSI		0x1004
 #define PCI_DEVICE_ID_VLSI_82C592	0x0005
 #define PCI_DEVICE_ID_VLSI_82C593	0x0006
diff --git a/src/southbridge/amd/sr5650/Kconfig b/src/southbridge/amd/sr5650/Kconfig
new file mode 100644
index 0000000..81aaf5d
--- /dev/null
+++ b/src/southbridge/amd/sr5650/Kconfig
@@ -0,0 +1,21 @@
+##
+## 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
+##
+
+config SOUTHBRIDGE_AMD_SR5650
+	bool
diff --git a/src/southbridge/amd/sr5650/Makefile.inc b/src/southbridge/amd/sr5650/Makefile.inc
new file mode 100644
index 0000000..a2d10d7
--- /dev/null
+++ b/src/southbridge/amd/sr5650/Makefile.inc
@@ -0,0 +1,3 @@
+driver-y += sr5650.c
+driver-y += pcie.c
+driver-y += ht.c
diff --git a/src/southbridge/amd/sr5650/chip.h b/src/southbridge/amd/sr5650/chip.h
new file mode 100644
index 0000000..43f8dd3
--- /dev/null
+++ b/src/southbridge/amd/sr5650/chip.h
@@ -0,0 +1,34 @@
+/*
+ * 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 SR5650_CHIP_H
+#define SR5650_CHIP_H
+
+/* Member variables are defined in Config.lb. */
+struct southbridge_amd_sr5650_config
+{
+	u8 gpp1_configuration;		/* The configuration of General Purpose Port. */
+	u8 gpp2_configuration;		/* The configuration of General Purpose Port. */
+	u8 gpp3a_configuration;		/* The configuration of General Purpose Port. */
+	u16 port_enable;		/* Which port is enabled? GPP(2,3,4,5,6,7,9,10,11,12,13) */
+};
+struct chip_operations;
+extern struct chip_operations southbridge_amd_sr5650_ops;
+
+#endif /* SR5650_CHIP_H */
diff --git a/src/southbridge/amd/sr5650/cmn.h b/src/southbridge/amd/sr5650/cmn.h
new file mode 100644
index 0000000..e94fcdd
--- /dev/null
+++ b/src/southbridge/amd/sr5650/cmn.h
@@ -0,0 +1,142 @@
+/*
+ * 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 __SR5650_CMN_H__
+#define __SR5650_CMN_H__
+
+#define NBMISC_INDEX 	0x60
+#define NBHTIU_INDEX 	0x94 /* Note: It is different with RS690, whose HTIU index is 0xA8 */
+#define NBMC_INDEX 	0xE8
+#define NBPCIE_INDEX  	0xE0
+#define EXT_CONF_BASE_ADDRESS 0xE0000000
+#define	TEMP_MMIO_BASE_ADDRESS	0xC0000000
+
+static inline u32 nb_read_index(device_t dev, u32 index_reg, u32 index)
+{
+	pci_write_config32(dev, index_reg, index);
+	return pci_read_config32(dev, index_reg + 0x4);
+}
+
+static inline void nb_write_index(device_t dev, u32 index_reg, u32 index, u32 data)
+{
+	pci_write_config32(dev, index_reg, index);
+	pci_write_config32(dev, index_reg + 0x4, data);
+}
+
+static inline u32 nbmisc_read_index(device_t nb_dev, u32 index)
+{
+	return nb_read_index((nb_dev), NBMISC_INDEX, (index));
+}
+
+static inline void nbmisc_write_index(device_t nb_dev, u32 index, u32 data)
+{
+	nb_write_index((nb_dev), NBMISC_INDEX, ((index) | 0x80), (data));
+}
+
+static inline void set_nbmisc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+				   u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = nbmisc_read_index(nb_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		nbmisc_write_index(nb_dev, reg_pos, reg);
+	}
+}
+
+static inline u32 htiu_read_index(device_t nb_dev, u32 index)
+{
+	return nb_read_index((nb_dev), NBHTIU_INDEX, (index));
+}
+
+static inline void htiu_write_index(device_t nb_dev, u32 index, u32 data)
+{
+	nb_write_index((nb_dev), NBHTIU_INDEX, ((index) | 0x100), (data));
+}
+
+static inline u32 nbmc_read_index(device_t nb_dev, u32 index)
+{
+	return nb_read_index((nb_dev), NBMC_INDEX, (index));
+}
+
+static inline void nbmc_write_index(device_t nb_dev, u32 index, u32 data)
+{
+	nb_write_index((nb_dev), NBMC_INDEX, ((index) | 1 << 9), (data));
+}
+
+static inline void set_htiu_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+				 u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = htiu_read_index(nb_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		htiu_write_index(nb_dev, reg_pos, reg);
+	}
+}
+
+static inline void set_nbcfg_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+				  u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = pci_read_config32(nb_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		pci_write_config32(nb_dev, reg_pos, reg);
+	}
+}
+
+static inline void set_nbcfg_enable_bits_8(device_t nb_dev, u32 reg_pos, u8 mask,
+				    u8 val)
+{
+	u8 reg_old, reg;
+	reg = reg_old = pci_read_config8(nb_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		pci_write_config8(nb_dev, reg_pos, reg);
+	}
+}
+
+static inline void set_nbmc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+				 u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = nbmc_read_index(nb_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		nbmc_write_index(nb_dev, reg_pos, reg);
+	}
+}
+
+static inline void set_pcie_enable_bits(device_t dev, u32 reg_pos, u32 mask, u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = nb_read_index(dev, NBPCIE_INDEX, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		nb_write_index(dev, NBPCIE_INDEX, reg_pos, reg);
+	}
+}
+#endif /* __SR5650_CMN_H__ */
diff --git a/src/southbridge/amd/sr5650/early_setup.c b/src/southbridge/amd/sr5650/early_setup.c
new file mode 100644
index 0000000..5f7438c
--- /dev/null
+++ b/src/southbridge/amd/sr5650/early_setup.c
@@ -0,0 +1,540 @@
+/*
+ * 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
+ */
+
+#include "sr5650.h"
+#include "cmn.h"
+
+/* family 10 only, for reg > 0xFF */
+#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1
+static void set_fam10_ext_cfg_enable_bits(device_t fam10_dev, u32 reg_pos, u32 mask,
+				  u32 val)
+{
+	u32 reg_old, reg;
+	reg = reg_old = Get_NB32(fam10_dev, reg_pos);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		Set_NB32(fam10_dev, reg_pos, reg);
+	}
+}
+#else
+#define set_fam10_ext_cfg_enable_bits(a, b, c, d) do {} while (0)
+#endif
+
+
+/*
+* Compliant with CIM_33's ATINB_PrepareInit
+*/
+static void get_cpu_rev(void)
+{
+	u32 eax;
+
+	eax = cpuid_eax(1);
+	printk(BIOS_INFO, "get_cpu_rev EAX=0x%x.\n", eax);
+	if (eax <= 0xfff)
+		printk(BIOS_INFO, "CPU Rev is K8_Cx.\n");
+	else if (eax <= 0x10fff)
+		printk(BIOS_INFO, "CPU Rev is K8_Dx.\n");
+	else if (eax <= 0x20fff)
+		printk(BIOS_INFO, "CPU Rev is K8_Ex.\n");
+	else if (eax <= 0x40fff)
+		printk(BIOS_INFO, "CPU Rev is K8_Fx.\n");
+	else if (eax == 0x60fb1 || eax == 0x60f81)	/*These two IDS are exception, they are G1. */
+		printk(BIOS_INFO, "CPU Rev is K8_G1.\n");
+	else if (eax <= 0X60FF0)
+		printk(BIOS_INFO, "CPU Rev is K8_G0.\n");
+	else if (eax <= 0x100000)
+		printk(BIOS_INFO, "CPU Rev is K8_G1.\n");
+	else if (eax <= 0x100f00)
+		printk(BIOS_INFO, "CPU Rev is Fam 10.\n");
+	else
+		printk(BIOS_INFO, "CPU Rev is not recognized.\n");
+}
+
+/*
+CIM NB_GetRevisionInfo()
+*/
+static u8 get_nb_rev(device_t nb_dev)
+{
+	u8 reg;
+	reg = pci_read_config8(nb_dev, 0x8);	/* copy from CIM, can't find in doc */
+	switch(reg & 3)
+	{
+	case 0x00:
+		reg = REV_SR5650_A11;
+		break;
+	case 0x02:
+	default:
+		reg = REV_SR5650_A12;
+		break;
+	}
+	return reg;
+}
+
+/*****************************************
+* Compliant with SR5650_CIMX_4_5_0 NBHT_InitHT().
+* Init HT link speed/width for sr5650 -- k8 link
+1: Check CPU Family, Family10?
+2: Get CPU's HT speed and width
+3: Decide HT mode 1 or 3 by HT Speed. >1GHz: HT3, else HT1
+4:
+*****************************************/
+static const u8 sr5650_ibias[] = {
+	/* 1, 3 are reserved. */
+	[0x0] = 0x44,		/* 200Mhz HyperTransport 1 only */
+	[0x2] = 0x44,		/* 400Mhz HyperTransport 1 only */
+	[0x4] = 0xB6,		/* 600Mhz HyperTransport 1 only */
+	[0x5] = 0x44,		/* 800Mhz HyperTransport 1 only */
+	[0x6] = 0x96,		/* 1Ghz   HyperTransport 1 only */
+	/* HT3 for Family 10 */
+	[0x7] = 0xB6,		/* 1.2Ghz HyperTransport 3 only */
+	[0x8] = 0x23,		/* 1.4Ghz HyperTransport 3 only */
+	[0x9] = 0x44,		/* 1.6Ghz HyperTransport 3 only */
+	[0xa] = 0x64,		/* 1.8Ghz HyperTransport 3 only */
+	[0xb] = 0x96,		/* 2.0Ghz HyperTransport 3 only */
+	[0xc] = 0xA6,		/* 2.2Ghz HyperTransport 3 only */
+	[0xd] = 0xB6,		/* 2.4Ghz HyperTransport 3 only */
+	[0xe] = 0xC6,		/* 2.6Ghz HyperTransport 3 only */
+};
+
+static void sr5650_htinit(void)
+{
+	/*
+	 * About HT, it has been done in enumerate_ht_chain().
+	 */
+	device_t cpu_f0, sr5650_f0, clk_f1, cpu1_f0;
+	u32 reg;
+	u8 cpu_ht_freq, ibias;
+
+	cpu_f0 = PCI_DEV(0, 0x18, 0);
+	cpu1_f0 = PCI_DEV(0, 0x19, 0);
+	/************************
+	* get cpu's ht freq, in cpu's function 0, offset 0x88
+	* bit11-8, specifics the maximum operation frequency of the link's transmitter clock.
+	* The link frequency field (Frq) is cleared by cold reset. SW can write a nonzero
+	* value to this reg, and that value takes effect on the next warm reset or
+	* LDTSTOP_L disconnect sequence.
+	* please see the table sr5650_ibias about the value and its corresponding frequency.
+	************************/
+	/* Link0, Link1 are for connection between P0 and P1.
+	 * Link2 should be 0xC8?
+	 * TODO: Check the topology of the MP and NB. Or we just read the nbconfig? */
+	/* NOTE: In most cases, we only have one CPU. In that case, we should read 0x88. */
+
+	reg = pci_read_config32(cpu1_f0, 0x0);
+	reg = pci_read_config32(cpu_f0,
+				reg == 0 || reg == -1 ? 0x88 : 0xC8
+		);
+	cpu_ht_freq = (reg & 0xf00) >> 8;
+	printk(BIOS_INFO, "sr5650_htinit cpu_ht_freq=%x.\n", cpu_ht_freq);
+	sr5650_f0 = PCI_DEV(0, 0, 0);
+
+	clk_f1 = PCI_DEV(0, 0, 1); /* We need to make sure the F1 is accessible. */
+
+	ibias = sr5650_ibias[cpu_ht_freq];
+
+	/* If HT freq>1GHz, we assume the CPU is fam10, else it is K8.
+	 * Is it appropriate?
+	 * Frequency is 1GHz, i.e. cpu_ht_freq is 6, in most cases.
+	 * So we check 6 only, it would be faster. */
+	if ((cpu_ht_freq == 0x6) || (cpu_ht_freq == 0x5) || (cpu_ht_freq == 0x4) ||
+		(cpu_ht_freq == 0x2) || (cpu_ht_freq == 0x0)) {
+		printk(BIOS_INFO, "sr5650_htinit: HT1 mode\n");
+
+		/* HT1 mode, RPR 5.4.2 */
+		/* set IBIAS code */
+		set_nbcfg_enable_bits(clk_f1, 0xD8, 0x3FF, ibias);
+		/* Optimizes chipset HT transmitter drive strength */
+		set_htiu_enable_bits(sr5650_f0, 0x2A, 0x3, 0x3);
+	} else if ((cpu_ht_freq > 0x6) && (cpu_ht_freq < 0xf)) {
+		printk(BIOS_INFO, "sr5650_htinit: HT3 mode\n");
+
+		/* Enable Protocol checker */
+		set_htiu_enable_bits(sr5650_f0, 0x1E, 0xFFFFFFFF, 0x7FFFFFFC);
+
+		#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1		/* save some spaces */
+		/* HT3 mode, RPR 5.4.3 */
+		set_nbcfg_enable_bits(sr5650_f0, 0x9c, 0x3 << 16, 0);
+
+		/* set IBIAS code */
+		set_nbcfg_enable_bits(clk_f1, 0xD8, 0x3FF, ibias);
+		/* Optimizes chipset HT transmitter drive strength */
+		set_htiu_enable_bits(sr5650_f0, 0x2A, 0x3, 0x1);
+		/* Enables error-retry mode */
+		set_nbcfg_enable_bits(sr5650_f0, 0x44, 0x1, 0x1);
+		/* Enables scrambling and Disalbes command throttling */
+		set_nbcfg_enable_bits(sr5650_f0, 0xac, (1 << 3) | (1 << 14), (1 << 3) | (1 << 14));
+		/* Enables transmitter de-emphasis */
+		set_nbcfg_enable_bits(sr5650_f0, 0xa4, 1 << 31, 1 << 31);
+		/* Enabels transmitter de-emphasis level */
+		/* Sets training 0 time */
+		set_nbcfg_enable_bits(sr5650_f0, 0xa0, 0x3F, 0x14);
+
+		/* Enables strict TM4 detection */
+		set_htiu_enable_bits(sr5650_f0, 0x15, 0x1 << 22, 0x1 << 22);
+
+		/* HyperTransport 3 Processor register settings to be done in northbridge */
+		/* Enables error-retry mode */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x130, 1 << 0, 1 << 0);
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x134, 1 << 0, 1 << 0); /* TODO: Check if it is needed to set other node. */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x138, 1 << 0, 1 << 0);
+		/* Enables scrambling */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x170, 1 << 3, 1 << 3);
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x174, 1 << 3, 1 << 3); /* TODO: Check if it is needed to set other node. */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x178, 1 << 3, 1 << 3);
+		/* Enables transmitter de-emphasis
+		 * This depends on the PCB design and the trace */
+		/* Disables command throttling */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x168, 1 << 10, 1 << 10);
+		/* Sets Training 0 Time. See T0Time table for encodings */
+		set_fam10_ext_cfg_enable_bits(cpu_f0, 0x16C, 0x3F, 0x20);
+		/* HT Buffer Allocation for Ganged Links!!! */
+		#endif	/* #if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1 */
+	}
+}
+
+#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 != 1		/* save some spaces */
+/*******************************************************
+* Optimize k8 with UMA.
+* See BKDG_NPT_0F guide for details.
+* The processor node is addressed by its Node ID on the HT link and can be
+* accessed with a device number in the PCI configuration space on Bus0.
+* The Node ID 0 is mapped to Device 24 (0x18), the Node ID 1 is mapped
+* to Device 25, and so on.
+* The processor implements configuration registers in PCI configuration
+* space using the following four headers
+*	Function0: HT technology configuration
+*	Function1: Address map configuration
+*	Function2: DRAM and HT technology Trace mode configuration
+*	Function3: Miscellaneous configuration
+*******************************************************/
+static void k8_optimization(void)
+{
+	device_t k8_f0, k8_f2, k8_f3;
+	msr_t msr;
+
+	printk(BIOS_INFO, "k8_optimization()\n");
+	k8_f0 = PCI_DEV(0, 0x18, 0);
+	k8_f2 = PCI_DEV(0, 0x18, 2);
+	k8_f3 = PCI_DEV(0, 0x18, 3);
+
+	pci_write_config32(k8_f0, 0x90, 0x01700169);	/* CIM NPT_Optimization */
+	set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 28, 0 << 28);
+	set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 26 | 1 << 27,
+			      1 << 26 | 1 << 27);
+	set_nbcfg_enable_bits(k8_f0, 0x68, 1 << 11, 1 << 11);
+	/* set_nbcfg_enable_bits(k8_f0, 0x84, 1 << 11 | 1 << 13 | 1 << 15, 1 << 11 | 1 << 13 | 1 << 15); */	/* TODO */
+
+	pci_write_config32(k8_f3, 0x70, 0x51220111);	/* CIM NPT_Optimization */
+	pci_write_config32(k8_f3, 0x74, 0x50404021);
+	pci_write_config32(k8_f3, 0x78, 0x08002A00);
+	if (pci_read_config32(k8_f3, 0xE8) & 0x3<<12)
+		pci_write_config32(k8_f3, 0x7C, 0x0000211A); /* dual core */
+	else
+		pci_write_config32(k8_f3, 0x7C, 0x0000212B); /* single core */
+	set_nbcfg_enable_bits_8(k8_f3, 0xDC, 0xFF, 0x25);
+
+	set_nbcfg_enable_bits(k8_f2, 0xA0, 1 << 5, 1 << 5);
+	set_nbcfg_enable_bits(k8_f2, 0x94, 0xF << 24, 7 << 24);
+	set_nbcfg_enable_bits(k8_f2, 0x90, 1 << 10, 0 << 10);
+	set_nbcfg_enable_bits(k8_f2, 0xA0, 3 << 2, 3 << 2);
+	set_nbcfg_enable_bits(k8_f2, 0xA0, 1 << 5, 1 << 5);
+
+	msr = rdmsr(0xC001001F);
+	msr.lo &= ~(1 << 9);
+	msr.hi &= ~(1 << 4);
+	wrmsr(0xC001001F, msr);
+}
+#else
+#define k8_optimization() do{}while(0)
+#endif	/* #if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 != 1 */
+
+#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1		/* save some spaces */
+void fam10_optimization(void)
+{
+	device_t cpu_f0, cpu_f2, cpu_f3;
+	device_t cpu1_f0, cpu1_f2, cpu1_f3;
+	msr_t msr;
+	u32 val;
+
+	printk(BIOS_INFO, "fam10_optimization()\n");
+	msr = rdmsr(0xC001001F);
+	msr.hi |= 1 << 14;	/* bit 46: EnableCf8ExtCfg */
+	wrmsr(0xC001001F, msr);
+
+	cpu_f0 = PCI_DEV(0, 0x18, 0);
+	cpu_f2 = PCI_DEV(0, 0x18, 2);
+	cpu_f3 = PCI_DEV(0, 0x18, 3);
+	cpu1_f0 = PCI_DEV(0, 0x19, 0);
+	cpu1_f2 = PCI_DEV(0, 0x19, 2);
+	cpu1_f3 = PCI_DEV(0, 0x19, 3);
+
+	val = pci_read_config32(cpu1_f3, 0x8C);
+	val |= 1 << 14;
+	pci_write_config32(cpu1_f3, 0x8C, val);
+
+	/* TODO: HT Buffer Allocation for (un)Ganged Links */
+	/* rpr Table 5-11, 5-12 */
+}
+#else
+#define fam10_optimization() do{}while(0)
+#endif	/* #if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1 */
+
+/*****************************************
+* Compliant with CIM_33's ATINB_PCICFG_POR_TABLE
+*****************************************/
+static void sr5650_por_pcicfg_init(device_t nb_dev)
+{
+	/* enable PCI Memory Access */
+	set_nbcfg_enable_bits_8(nb_dev, 0x04, (u8)(~0xFD), 0x02);
+
+	set_nbcfg_enable_bits(nb_dev, 0x14, ~0, 0x0);
+	set_nbcfg_enable_bits(nb_dev, 0x18, ~0, 0x0);
+	set_nbcfg_enable_bits(nb_dev, 0x20, ~0, 0x0);
+	set_nbcfg_enable_bits(nb_dev, 0x84, ~0, 0x03000010);
+
+	/* Reg4Ch[1]=1 (APIC_ENABLE) force cpu request with address 0xFECx_xxxx to south-bridge
+	 * Reg4Ch[6]=1 (BMMsgEn) enable BM_Set message generation
+	 * BMMsgEn */
+	set_nbcfg_enable_bits(nb_dev, 0x4C, (u8)(~0x00), 0x52042);
+
+	set_nbcfg_enable_bits(nb_dev, 0x7C, (u8)(~0), 0x0);
+
+	/* Reg8Ch[10:9] = 0x3 Enables Gfx Debug BAR,
+	 * force this BAR as mem type in sr5650_gfx.c */
+	//set_nbcfg_enable_bits_8(nb_dev, 0x8D, (u8)(~0xFF), 0x03);
+}
+
+/*****************************************
+* Compliant with CIM_33's ATINB_MISCIND_POR_TABLE
+* Compliant with CIM_33's MISC_INIT_TBL
+*****************************************/
+static void sr5650_por_misc_index_init(device_t nb_dev)
+{
+	/* disable IOMMU */
+	set_nbmisc_enable_bits(nb_dev, 0x75, 0x1, 0x0);
+	/* NBMISCIND:0x75[29]= 1 Device ID for hotplug and PME message */
+	set_nbmisc_enable_bits(nb_dev, 0x75, 1 << 29, 1 << 29);
+	set_nbmisc_enable_bits(nb_dev, 0x75, 1 << 9, 1 << 9); /* no doc reference, comply with BTS */
+	set_nbmisc_enable_bits(nb_dev, 0x46, 1 << 7, 1 << 7); /* bit7 BTS fail*/
+	/*P2P*/
+	set_nbmisc_enable_bits(nb_dev, 0x48, 1 << 8, 0);
+
+	set_nbmisc_enable_bits(nb_dev, 0x2A, 1 << 15 | 1 << 17, 1 << 17);
+	set_nbmisc_enable_bits(nb_dev, 0x2B, 1 << 15 | 1 << 27, 1 << 15 | 1 << 27);
+	set_nbmisc_enable_bits(nb_dev, 0x2C, 1 << 0 | 1 << 1 | 1 << 5 | 1 << 4 | 1 << 10, 1 << 0 | 1 << 1 | 1 << 5);
+	set_nbmisc_enable_bits(nb_dev, 0x32, 0x3F << 20, 0x2A << 20);
+	set_nbmisc_enable_bits(nb_dev, 0x34, 1 << 7 | 1 << 15 | 1 << 23 | 1 << 31, 0); /* bit31 BTS fail */
+	set_nbmisc_enable_bits(nb_dev, 0x35, 0x3F << 26, 0x2A << 26);
+	set_nbmisc_enable_bits(nb_dev, 0x37, 0xfff << 20, 0xddd << 20);
+	set_nbmisc_enable_bits(nb_dev, 0x37, 7 << 11, 0);
+	/* PCIE CDR setting */
+	set_nbmisc_enable_bits(nb_dev, 0x38, 0xFFFFFFFF, 0xC0C0C0);
+	set_nbmisc_enable_bits(nb_dev, 0x39, 1 << 31, 0); /* bit31 BTS fail */
+	set_nbmisc_enable_bits(nb_dev, 0x22, 0xFFFFFFFF, (1 << 27) | (0x8 << 12) | (0x8 << 16) | (0x8 << 20));
+	set_nbmisc_enable_bits(nb_dev, 0x22, 1 << 1 | 1 << 2 | 1 << 6 | 1 << 7, 1 << 1 | 1 << 2 | 1 << 6 | 1 << 7);
+
+	set_nbmisc_enable_bits(nb_dev, 0x07, 0xF << 4 | 1 << 24, 0xF << 4 | 1 << 24);
+	set_nbmisc_enable_bits(nb_dev, 0x67, 1 << 10 | 1 << 11 | 1 << 26, 1 << 11);
+	set_nbmisc_enable_bits(nb_dev, 0x67, 3 << 21, 3 << 21);
+	set_nbmisc_enable_bits(nb_dev, 0x68, 1 << 8 | 1 << 9 | 1 << 19, 1 << 9 | 1 << 19);
+	set_nbmisc_enable_bits(nb_dev, 0x6B, 3 << 3 | 1 << 15 | 0x1F << 27, 3 << 3 | 1 << 15 | 0x1F << 27);
+	set_nbmisc_enable_bits(nb_dev, 0x6C, 0xFFFFFFFF, 0x41183000);
+
+	/* NB_MISC_IND_WR_EN + IOC_PCIE_CNTL
+	 * Block non-snoop DMA request if PMArbDis is set.
+	 * Set BMSetDis */
+	set_nbmisc_enable_bits(nb_dev, 0x0B, 0xFFFFFFFF, 0x00400180);
+	set_nbmisc_enable_bits(nb_dev, 0x01, 0xFFFFFFFF, 0x00000310);
+
+	/* NBCFG (NBMISCIND 0x0): NB_CNTL -
+	 *   HIDE_NB_AGP_CAP  ([0], default=1)HIDE
+	 *   HIDE_P2P_AGP_CAP ([1], default=1)HIDE
+	 *   HIDE_NB_GART_BAR ([2], default=1)HIDE
+	 *   AGPMODE30        ([4], default=0)DISABLE
+	 *   AGP30ENCHANCED   ([5], default=0)DISABLE
+	 *   HIDE_AGP_CAP     ([8], default=1)ENABLE */
+	set_nbmisc_enable_bits(nb_dev, 0x00, 0x0000FFFF, 0 << 0 | 1 << 1 | 1 << 2 | 0 << 6);
+
+	/* IOC_LAT_PERF_CNTR_CNTL */
+	set_nbmisc_enable_bits(nb_dev, 0x30, 0xFF, 0x00);
+	//set_nbmisc_enable_bits(nb_dev, 0x31, 0xFF, 0x00);
+
+	/* IOC_LAT_PERF_CNTR_OUT */
+	/* IOC_JTAG_CNTL */
+	set_nbmisc_enable_bits(nb_dev, 0x47, 0xFFFFFFFF, 0x0000000B);
+
+	set_nbmisc_enable_bits(nb_dev, 0x12, 0xFFFFFFFF, 0x00FB5555);
+	set_nbmisc_enable_bits(nb_dev, 0x0C, 0xFFFFFFFF, 0x001f37EC);
+	set_nbmisc_enable_bits(nb_dev, 0x15, 0xFFFFFFFF, 0x0);
+
+	/* NB_PROG_DEVICE_REMAP */
+	set_nbmisc_enable_bits(nb_dev, 0x20, 0xFFFFFFFF, 0x0);
+	set_nbmisc_enable_bits(nb_dev, 0x21, 0xFFFFFFFF, 0x0);
+
+	/* Compliant with CIM_33's MISC_INIT_TBL, except Hide NB_BAR3_PCIE
+	 * Enable access to DEV8
+	 * Enable setPower message for all ports
+	 */
+	set_nbmisc_enable_bits(nb_dev, 0x51, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x53, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x55, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x57, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x59, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x5B, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x5D, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x5F, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x61, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+	set_nbmisc_enable_bits(nb_dev, 0x63, 1 << 20 | 1 << 8, 1 << 20 | 1 << 8);
+
+	/* Disable bus-master trigger event from SB and Enable set_slot_power message to SB */
+	set_nbmisc_enable_bits(nb_dev, 0x0B, 0xffffffff, 0x400180);
+}
+
+/*****************************************
+* Some setting is from rpr. Some is from CIMx.
+*****************************************/
+static void sr5650_por_htiu_index_init(device_t nb_dev)
+{
+	device_t cpu_f0;
+
+	cpu_f0 = PCI_DEV(0, 0x18, 0);
+
+	set_htiu_enable_bits(nb_dev, 0x1C, 0x1<<17, 0x1<<17);
+	set_htiu_enable_bits(nb_dev, 0x05, 0x1<<8,  0x1<<8);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<0,  0x0<<0);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<1,  0x1<<1);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<9,  0x1<<9);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<13, 0x1<<13);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<17, 0x1<<17);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x3<<15, 0x3<<15);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<25, 0x1<<25);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<30, 0x1<<30);
+
+	set_htiu_enable_bits(nb_dev, 0x07, 0x1 << 0 | 0x1 << 1 | 0x1 << 2, 0x1 << 0);
+
+	set_htiu_enable_bits(nb_dev, 0x16, 0x1<<11,  0x1<<11);
+
+	set_htiu_enable_bits(nb_dev, 0x1D, 0x1<<2,  0x1<<2);
+	set_htiu_enable_bits(nb_dev, 0x1D, 0x1<<4,  0x1<<4);
+
+	set_nbcfg_enable_bits(cpu_f0, 0x68, 3 << 21, 0 << 21);
+	axindxc_reg(0x10, 1 << 9, 1 << 9);
+	set_pcie_enable_bits(nb_dev, 0x10 | 5 << 16, 1 << 9, 1 << 9);
+	set_htiu_enable_bits(nb_dev, 0x06, 0x1<<26, 0x1<<26);
+	set_htiu_enable_bits(nb_dev, 0x16, 0x1<<10, 0x1<<10);
+
+	/* Enable BIAS circuit for all lanes. */
+	//set_htiu_enable_bits(nb_dev, 0x2B, 0xF<<28, 0xF<<28);
+	set_htiu_enable_bits(nb_dev, 0x2B, 0xF << 28, 0);
+	set_htiu_enable_bits(nb_dev, 0x05, 0xFFFFFF, 0xFF558);
+	set_htiu_enable_bits(nb_dev, 0x06, 0xFFFFFFFE, 0x04203A202);
+	set_htiu_enable_bits(nb_dev, 0x0C, 0xFFFF, 0x101);
+
+	/* A21 only */
+	//if (REV_SR5650_A21 == get_nb_rev(nb_dev)) {
+	if (get_nb_rev(nb_dev) > REV_SR5650_A11) {
+		set_htiu_enable_bits(nb_dev, 0x05, 0x3<<3| 1<<6 | 1<<10 | 0xFF<<12, 0x3<<3 | 1<<6 | 1<<10 | 0xFF<<12);
+		set_htiu_enable_bits(nb_dev, 0x1D, 1 << 2 | 1 << 4, 0);
+	}
+}
+
+/*****************************************
+* Compliant with CIM_33's ATINB_POR_INIT_JMPDI
+* Configure SR5650 registers to power-on default RPR.
+* POR: Power On Reset
+* RPR: Register Programming Requirements
+*****************************************/
+static void sr5650_por_init(device_t nb_dev)
+{
+	printk(BIOS_INFO, "sr5650_por_init\n");
+	/* ATINB_PCICFG_POR_TABLE, initialize the values for sr5650 PCI Config registers */
+	sr5650_por_pcicfg_init(nb_dev);
+
+	/* ATINB_MISCIND_POR_TABLE */
+	sr5650_por_misc_index_init(nb_dev);
+
+	/* ATINB_HTIUNBIND_POR_TABLE */
+	sr5650_por_htiu_index_init(nb_dev);
+
+	/* ATINB_CLKCFG_PORT_TABLE */
+	/* sr5650 A11 SB Link full swing? */
+}
+
+/* enable CFG access to Dev8, which is the SB P2P Bridge */
+static void enable_sr5650_dev8(void)
+{
+	set_nbmisc_enable_bits(PCI_DEV(0, 0, 0), 0x00, 1 << 6, 1 << 6);
+}
+
+/*
+* Compliant with CIM_33's AtiNBInitEarlyPost (AtiInitNBBeforePCIInit).
+*/
+static void sr5650_before_pci_init(void)
+{
+}
+
+/*
+* The calling sequence is same as CIM.
+*/
+static void sr5650_early_setup(void)
+{
+	device_t nb_dev = PCI_DEV(0, 0, 0);
+	printk(BIOS_INFO, "sr5650_early_setup()\n");
+
+	/*ATINB_PrepareInit */
+	get_cpu_rev();
+
+	switch (get_nb_rev(nb_dev)) {	/* PCIEMiscInit */
+	case REV_SR5650_A11:
+		printk(BIOS_INFO, "NB Revision is A11.\n");
+		break;
+	case REV_SR5650_A12:
+		printk(BIOS_INFO, "NB Revision is A12.\n");
+		break;
+	case REV_SR5650_A21:
+		printk(BIOS_INFO, "NB Revision is A21.\n");
+		break;
+	}
+
+#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 == 1
+
+	fam10_optimization();
+#else
+	k8_optimization();
+#endif
+
+	sr5650_por_init(nb_dev);
+}
+
+/**
+ * @brief disable GPP1 Port0,1, GPP3a Port0,1,2,3,4,5
+ *
+ */
+void disable_pcie_bridge(void)
+{
+	u32 mask;
+	u32 reg;
+	device_t nb_dev = PCI_DEV(0, 0, 0);
+
+	mask = (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) |
+			(1 << 16) | (1 << 17);
+	reg = mask;
+	set_nbmisc_enable_bits(nb_dev, 0x0c, mask, reg);
+}
diff --git a/src/southbridge/amd/sr5650/ht.c b/src/southbridge/amd/sr5650/ht.c
new file mode 100644
index 0000000..6d273212
--- /dev/null
+++ b/src/southbridge/amd/sr5650/ht.c
@@ -0,0 +1,205 @@
+/*
+ * 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
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <arch/ioapic.h>
+#include "sr5650.h"
+
+/* Table 6-6 Recommended Interrupt Routing Configuration */
+typedef struct _apic_device_info {
+	u8	group;
+	u8	swizzle;
+	u8	pin;
+} apic_device_info;
+
+#define ABCD		0
+#define BCDA		1
+#define CDAB		2
+#define DABC		3
+
+static const apic_device_info default_apic_device_info_t [] = {
+	/* Group  Swizzling   Port Int Pin */
+	[0] = {0,     0,          31},   /* HT */
+	[1] = {0,     0,          31},   /* IOMMU */
+	[2] = {0,     ABCD,       28},   /* Dev2  Grp0 [Int - 0..3] */
+	[3] = {1,     ABCD,       28},   /* Dev3  Grp1 [Int - 4..7] */
+	[4] = {5,     ABCD,       28},   /* Dev4  Grp5 [Int - 20..23] */
+	[5] = {5,     CDAB,       28},   /* Dev5  Grp5 [Int - 20..23] */
+	[6] = {6,     BCDA,       29},   /* Dev6  Grp6 [Int - 24..27] */
+	[7] = {6,     CDAB,       29},   /* Dev7  Grp6 [Int - 24..27] */
+	[8] = {0,     0,          0 },   /* Reserved */
+	[9] = {6,     ABCD,       29},   /* Dev9  Grp6 [Int - 24..27] */
+	[10] = {5,     BCDA,       30},   /* Dev10 Grp5 [Int - 20..23] */
+	[11] = {2,     ABCD,       30},   /* Dev11 Grp2 [Int - 8..11] */
+	[12] = {3,     ABCD,       30},   /* Dev12 Grp3 [Int - 12..15] */
+	[13] = {4,     ABCD,       30}    /* Dev13 Grp4 [Int - 16..19] */
+};
+
+/* Their name are quite regular. So I undefine them. */
+#undef ABCD
+#undef BCDA
+#undef CDAB
+#undef DABC
+
+/* Init APIC of sr5690 */
+static void sr5690_apic_init(struct device *dev)
+{
+	u32 dword;
+	const apic_device_info *entry = default_apic_device_info_t;
+
+	/* rpr6.2.(2). Write to the IOAPIC Features Enable register */
+	pci_write_config32(dev, 0xF8, 0x0);
+	pci_write_config32(dev, 0xFC, 0x1F);
+	/* rpr6.2.(3). Write to the remaining interrupt routing registers */
+
+	/* IOAPICCMISCIND:0x3, group & swizzle of Dev 2,3,4,5 */
+	dword = (entry[2].group | entry[2].swizzle << 4) << 0  |
+		(entry[3].group | entry[3].swizzle << 4) << 8  |
+		(entry[4].group | entry[4].swizzle << 4) << 16 |
+		(entry[5].group | entry[5].swizzle << 4) << 24;
+	pci_write_config32(dev, 0xF8, 0x3);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x4, group & swizzle of Dev 6,7,9,10 */
+	dword = (entry[6].group | entry[6].swizzle << 4) << 0  |
+		(entry[7].group | entry[7].swizzle << 4) << 8  |
+		(entry[9].group | entry[9].swizzle << 4) << 16 |
+		(entry[10].group | entry[10].swizzle << 4) << 24;
+	pci_write_config32(dev, 0xF8, 0x4);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x5, group & swizzle of Dev 11,12,13 */
+	dword = (entry[11].group | entry[11].swizzle << 4) << 0  |
+		(entry[12].group | entry[12].swizzle << 4) << 8  |
+		(entry[13].group | entry[13].swizzle << 4) << 16;
+	pci_write_config32(dev, 0xF8, 0x5);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x6, pin map of dev 2,3,4,5 */
+	dword = entry[2].pin |
+		entry[3].pin << 8 |
+		entry[4].pin << 16|
+		entry[5].pin << 24;
+	pci_write_config32(dev, 0xF8, 0x6);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x7, pin map of dev 6,7,8,9 */
+	dword = entry[6].pin |
+		entry[7].pin << 8 |
+		entry[8].pin << 16|
+		entry[9].pin << 24;
+	pci_write_config32(dev, 0xF8, 0x7);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x8, pin map of dev 10,11,12,13 */
+	dword = entry[10].pin |
+		entry[11].pin << 8 |
+		entry[12].pin << 16|
+		entry[13].pin << 24;
+	pci_write_config32(dev, 0xF8, 0x8);
+	pci_write_config32(dev, 0xFC, dword);
+
+	/* IOAPICCMISCIND:0x9, pin map of ht, iommu */
+	dword = entry[0].pin | entry[1].pin << 8;
+	pci_write_config32(dev, 0xF8, 0x9);
+	pci_write_config32(dev, 0xFC, dword);
+
+	pci_write_config32(dev, 0xF8, 0x1);
+	dword = pci_read_config32(dev, 0xFC) & 0xfffffff0;
+	/* TODO: On SR56x0/SP5100 board, the IOAPIC on SR56x0 is the
+	 * 2nd one. We need to check if it also is on your board. */
+	setup_ioapic(dword, 1);
+}
+
+static void pcie_init(struct device *dev)
+{
+	/* Enable pci error detecting */
+	u32 dword;
+
+	printk(BIOS_INFO, "pcie_init in sr5650_ht.c\n");
+
+	/* System error enable */
+	dword = pci_read_config32(dev, 0x04);
+	dword |= (1 << 8);	/* System error enable */
+	dword |= (1 << 30);	/* Clear possible errors */
+	pci_write_config32(dev, 0x04, dword);
+
+	/*
+	 * 1 is APIC enable
+	 * 18 is enable nb to accept A4 interrupt request from SB.
+	 */
+	dword = pci_read_config32(dev, 0x4C);
+	dword |= 1 << 1 | 1 << 18;	/* Clear possible errors */
+	pci_write_config32(dev, 0x4C, dword);
+
+	sr5690_apic_init(dev);
+}
+
+static void sr5690_read_resource(struct device *dev)
+{
+	pci_dev_read_resources(dev);
+
+	/* rpr6.2.(1). Write the Base Address Register (BAR) */
+	pci_write_config32(dev, 0xF8, 0x1); /* set IOAPIC's index as 1 and make sure no one changes it. */
+	pci_get_resource(dev, 0xFC); /* APIC located in sr5690 */
+
+	compact_resources(dev);
+}
+
+/* If IOAPIC's index changes, we should replace the pci_dev_set_resource(). */
+static void sr5690_set_resources(struct device *dev)
+{
+	pci_write_config32(dev, 0xF8, 0x1); /* set IOAPIC's index as 1 and make sure no one changes it. */
+	pci_dev_set_resources(dev);
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = pci_dev_set_subsystem,
+};
+
+static struct device_operations ht_ops = {
+	.read_resources = sr5690_read_resource,
+	.set_resources = sr5690_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init = pcie_init,
+	.scan_bus = 0,
+	.ops_pci = &lops_pci,
+};
+
+static const struct pci_driver ht_driver_sr5690 __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_SR5690_HT,
+};
+
+static const struct pci_driver ht_driver_sr5670 __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_SR5670_HT,
+};
+
+static const struct pci_driver ht_driver_sr5650 __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_SR5650_HT,
+};
diff --git a/src/southbridge/amd/sr5650/pcie.c b/src/southbridge/amd/sr5650/pcie.c
new file mode 100644
index 0000000..3ad5a7d
--- /dev/null
+++ b/src/southbridge/amd/sr5650/pcie.c
@@ -0,0 +1,812 @@
+/*
+ * 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
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <delay.h>
+#include "sr5650.h"
+#include "cmn.h"
+
+/*------------------------------------------------
+* Global variable
+------------------------------------------------*/
+PCIE_CFG AtiPcieCfg = {
+	PCIE_ENABLE_STATIC_DEV_REMAP,	/* Config */
+	0,			/* ResetReleaseDelay */
+	0,			/* Gfx0Width */
+	0,			/* Gfx1Width */
+	0,			/* GfxPayload */
+	0,			/* GppPayload */
+	0,			/* PortDetect, filled by GppSbInit */
+	0,			/* PortHp */
+	0,			/* DbgConfig */
+	0,			/* DbgConfig2 */
+	0,			/* GfxLx */
+	0,			/* GppLx */
+	0,			/* NBSBLx */
+	0,			/* PortSlotInit */
+	0,			/* Gfx0Pwr */
+	0,			/* Gfx1Pwr */
+	0			/* GppPwr */
+};
+
+static void ValidatePortEn(device_t nb_dev);
+
+static void ValidatePortEn(device_t nb_dev)
+{
+}
+
+/*****************************************************************
+* Compliant with CIM_33's PCIEPowerOffGppPorts
+* Power off unused GPP lines
+*****************************************************************/
+static void PciePowerOffGppPorts(device_t nb_dev, device_t dev, u32 port)
+{
+	u32 reg;
+	u16 state_save;
+	struct southbridge_amd_sr5650_config *cfg =
+		(struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+	u16 state = cfg->port_enable;
+
+	if (!(AtiPcieCfg.Config & PCIE_DISABLE_HIDE_UNUSED_PORTS))
+		state &= AtiPcieCfg.PortDetect;
+	state = ~state;
+	state &= (1 << 4) + (1 << 5) + (1 << 6) + (1 << 7);
+	state_save = state << 17;
+	state &= !(AtiPcieCfg.PortHp);
+	reg = nbmisc_read_index(nb_dev, 0x0c);
+	reg |= state;
+	nbmisc_write_index(nb_dev, 0x0c, reg);
+
+	reg = nbmisc_read_index(nb_dev, 0x08);
+	reg |= state_save;
+	nbmisc_write_index(nb_dev, 0x08, reg);
+
+	if ((AtiPcieCfg.Config & PCIE_OFF_UNUSED_GPP_LANES)
+	    && !(AtiPcieCfg.
+		 Config & (PCIE_DISABLE_HIDE_UNUSED_PORTS +
+			   PCIE_GFX_COMPLIANCE))) {
+	}
+	/* step 3 Power Down Control for Southbridge */
+	reg = nbpcie_p_read_index(dev, 0xa2);
+
+	switch ((reg >> 4) & 0x7) {	/* get bit 4-6, LC_LINK_WIDTH_RD */
+	case 1:
+		nbpcie_ind_write_index(nb_dev, 0x65, 0x0e0e);
+		break;
+	case 2:
+		nbpcie_ind_write_index(nb_dev, 0x65, 0x0c0c);
+		break;
+	default:
+		break;
+	}
+}
+
+/**********************************************************************
+**********************************************************************/
+static void switching_gpp1_configurations(device_t nb_dev, device_t sb_dev)
+{
+	u32 reg;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	/* 4.3.3.1.1.1.step1. Asserts PCIE-GPP1 global reset */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg |= 1 << 15;
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* 4.3.3.1.1.1.step2. De-asserts STRAP_BIF_all_valid for PCIE-GPP1 core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg |= 1 << 28;
+	nbmisc_write_index(nb_dev, 0x26, reg);
+
+	/* 4.3.3.1.1.1.step3. Programs PCIE-GPP1 to be desired port configuration 8:8 or 16:0. */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg &= ~(1 << 8);		/* clean */
+	reg |= cfg->gpp1_configuration << 8;
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* 4.3.3.1.1.1.step4. Wait for 2ms */
+	mdelay(1);
+
+	/* 4.3.3.1.1.1.step5. Asserts STRAP_BIF_all_valid for PCIE-GPP1 core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg &= ~(1 << 28);
+	nbmisc_write_index(nb_dev, 0x26, reg);
+
+	/* 4.3.3.1.1.1.step6. De-asserts PCIE-GPP1 global reset */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg &= ~(1 << 15);
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* Follow the procedure for PCIE-GPP1 common initialization and
+	 * link training sequence. */
+}
+
+/**********************************************************************
+**********************************************************************/
+static void switching_gpp2_configurations(device_t nb_dev, device_t sb_dev)
+{
+	u32 reg;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	/* 4.3.3.1.1.2.step1. Asserts PCIE-GPP2 global reset */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg |= 1 << 13;
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* 4.3.3.1.1.2.step2. De-asserts STRAP_BIF_all_valid for PCIE-GPP2 core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg |= 1 << 29;
+	nbmisc_write_index(nb_dev, 0x26, reg);
+
+	/* 4.3.3.1.1.2.step3. Programs PCIE-GPP2 to be desired port configuration 8:8 or 16:0. */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg &= ~(1 << 9);		/* clean */
+	reg |= (cfg->gpp2_configuration & 1) << 9;
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* 4.3.3.1.1.2.step4. Wait for 2ms */
+	mdelay(2);
+
+	/* 4.3.3.1.1.2.step5. Asserts STRAP_BIF_all_valid for PCIE-GPP2 core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg &= ~(1 << 29);
+	nbmisc_write_index(nb_dev, 0x26, reg);
+
+	/* 4.3.3.1.1.2.step6. De-asserts PCIE-GPP2 global reset */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg &= ~(1 << 13);
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	/* Follow the procedure for PCIE-GPP2 common initialization and
+	 * link training sequence. */
+}
+static void switching_gpp3a_configurations(device_t nb_dev, device_t sb_dev)
+{
+	u32 reg;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	/* 4.3.3.2.3.2.step1. Asserts PCIE-GPP3a global reset. */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg |= 1 << 31;
+	nbmisc_write_index(nb_dev, 0x8, reg);
+	/* 4.3.3.2.3.2.step2. De-asserts STRAP_BIF_all_valid for PCIE-GPP3a core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg |= 1 << 30;
+	nbmisc_write_index(nb_dev, 0x26, reg);
+	/* 4.3.3.2.3.2.step3. Programs the desired PCIE-GPP3a configuration. */
+	reg = nbmisc_read_index(nb_dev, 0x67);
+	reg &= ~0x1F;		/* clean */
+	reg |= cfg->gpp3a_configuration;
+	nbmisc_write_index(nb_dev, 0x67, reg);
+	/* 4.3.3.2.3.2.step4. Programs PCIE-GPP3a Line Director. */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg &= 0xF0000000;	/* TODO:Lane reversed. */
+	switch (cfg->gpp3a_configuration) {
+	case 0xB:		/* 1:1:1:1:1:1 */
+		reg |= 0x2AA3554;
+		break;
+	case 0x1:		/* 4:2:0:0:0:0 */
+		reg |= 0x055B000;
+		break;
+	case 0x2:		/* 4:1:1:0:0:0 */
+		reg |= 0x215B400;
+		break;
+	case 0xC:		/* 2:2:2:0:0:0 */
+		reg |= 0xFF0BAA0;
+		break;
+	case 0xA:		/* 2:2:1:1:0:0 */
+		reg |= 0x215B400;
+		break;
+	case 0x4:		/* 2:1:1:1:1:0 */
+		reg |= 0xFF0BAA0;
+		break;
+	default:	/* shouldn't be here. */
+		printk(BIOS_DEBUG, "Warning:gpp3a_configuration is not correct. Check you devicetree.cb\n");
+		break;
+	}
+	nbmisc_write_index(nb_dev, 0x26, reg);
+	/* 4.3.3.2.3.2.step5. De-asserts STRAP_BIF_all_valid for PCIE-GPP3a core */
+	reg = nbmisc_read_index(nb_dev, 0x26);
+	reg &= ~(1 << 30);
+	nbmisc_write_index(nb_dev, 0x26, reg);
+	/* 4.3.3.2.3.2.step6. De-asserts PCIE-GPP3a global reset. */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg &= ~(1 << 31);
+	nbmisc_write_index(nb_dev, 0x8, reg);
+}
+
+/*****************************************************************
+* The sr5650 uses NBCONFIG:0x1c (BAR3) to map the PCIE Extended Configuration
+* Space to a 256MB range within the first 4GB of addressable memory.
+*****************************************************************/
+void enable_pcie_bar3(device_t nb_dev)
+{
+	printk(BIOS_DEBUG, "enable_pcie_bar3()\n");
+	set_nbcfg_enable_bits(nb_dev, 0x7C, 1 << 30, 1 << 30);	/* Enables writes to the BAR3 register. */
+	set_nbcfg_enable_bits(nb_dev, 0x84, 7 << 16, 0 << 16);
+
+	pci_write_config32(nb_dev, 0x1C, EXT_CONF_BASE_ADDRESS);	/* PCIEMiscInit */
+	pci_write_config32(nb_dev, 0x20, 0x00000000);
+	set_htiu_enable_bits(nb_dev, 0x32, 1 << 28, 1 << 28);	/* PCIEMiscInit */
+	ProgK8TempMmioBase(1, EXT_CONF_BASE_ADDRESS, TEMP_MMIO_BASE_ADDRESS);
+}
+
+/*****************************************************************
+* We should disable bar3 when we want to exit sr5650_enable, because bar3 will be
+* remapped in set_resource later.
+*****************************************************************/
+void disable_pcie_bar3(device_t nb_dev)
+{
+	printk(BIOS_DEBUG, "disable_pcie_bar3()\n");
+	pci_write_config32(nb_dev, 0x1C, 0);	/* clear BAR3 address */
+	set_nbcfg_enable_bits(nb_dev, 0x7C, 1 << 30, 0 << 30);	/* Disable writes to the BAR3. */
+	ProgK8TempMmioBase(0, EXT_CONF_BASE_ADDRESS, TEMP_MMIO_BASE_ADDRESS);
+}
+
+/*
+*/
+void init_gen2(device_t nb_dev, device_t dev, u8 port)
+{
+	u32 reg, val;
+	/* for A11 (0x89 == 0) */
+	reg = 0x34;
+	if (port <= 3){
+		val = 1<<5;
+	}else{
+		val = 1<<31;
+		if (port >= 9 )
+			reg = 0x39;
+	}
+
+	/* todo: check for rev > a11
+	switch (port) {
+		case 2;
+			reg = 0x34;
+			val = 1<<5;
+			break;
+		case 3:
+			reg = 0x22;
+			val = 1<<6;
+			break;
+		case 4:
+			reg = 0x34;
+			val = 1<<31;
+			break;
+		case 5:
+		case 6:
+			reg = 0x39;
+			val = 1<<31;
+			break;
+		case 7..9:
+			reg = 0x37;
+			val = 1<<port;
+			break;
+		case 10:
+			reg = 0x22;
+			val = 1<<5;
+			break;
+		default:
+			reg = 0;
+			break;
+	}
+	*/
+	set_pcie_enable_bits(dev, 0xA4, 0x1, 0x1);
+	pci_ext_write_config32(nb_dev, dev, 0x88, 0xF0, 1<<2); /* LINK_CRTL2*/
+	set_nbmisc_enable_bits(nb_dev, reg, val, val);
+}
+
+
+/* Alternative to default CPL buffer count */
+const u8 pGpp420000[] = {0x38, 0x1C};
+const u8 pGpp411000[] = {0x38, 0x0E, 0x0E};
+const u8 pGpp222000[] = {0x1C, 0x1C, 0x1C};
+const u8 pGpp221100[] = {0x1C, 0x1C, 0x0E, 0x0E};
+const u8 pGpp211110[] = {0x1C, 0x0E, 0x0E, 0x0E, 0, 0x0E, 0x0E};
+const u8 pGpp111111[] = {0x0E, 0x0E, 0x0E, 0x0E, 0, 0x0E, 0x0E};
+
+/*
+ * Enabling Dynamic Slave CPL Buffer Allocation Feature for PCIE-GPP3a Ports
+ * PcieLibCplBufferAllocation
+ */
+static void gpp3a_cpl_buf_alloc(device_t nb_dev, device_t dev)
+{
+	u8 dev_index;
+	u8 *slave_cpl;
+	u8 value;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	dev_index = dev->path.pci.devfn >> 3;
+	if (dev_index < 4 || dev_index > 0xa) {
+		return;
+	}
+
+	switch (cfg->gpp3a_configuration) {
+	case 0x1: /* 4:2:0:0:0:0 */
+		slave_cpl = (u8 *)&pGpp420000;
+		break;
+	case 0x2: /* 4:1:1:0:0:0 */
+		slave_cpl = (u8 *)&pGpp411000;
+		break;
+	case 0xC: /* 2:2:2:0:0:0 */
+		slave_cpl = (u8 *)&pGpp222000;
+		break;
+	case 0xA: /* 2:2:1:1:0:0 */
+		slave_cpl = (u8 *)&pGpp221100;
+		break;
+	case 0x4: /* 2:1:1:1:1:0 */
+		slave_cpl = (u8 *)&pGpp211110;
+		break;
+	case 0xB: /* 1:1:1:1:1:1 */
+		slave_cpl = (u8 *)&pGpp111111;
+		break;
+	default:  /* shouldn't be here. */
+		printk(BIOS_DEBUG, "buggy gpp3a_configuration\n");
+		break;
+	}
+
+	value = slave_cpl[dev_index - 4];
+	if (value != 0) {
+		set_pcie_enable_bits(dev, 0x10, 0x3f << 8, value << 8);
+		set_pcie_enable_bits(dev, 0x20, 1 << 11, 1 << 11);
+	}
+}
+
+/*
+ * Enabling Dynamic Slave CPL Buffer Allocation Feature for PCIE-GPP1/PCIE-GPP2 Ports
+ * PcieLibCplBufferAllocation
+ */
+static void gpp12_cpl_buf_alloc(device_t nb_dev, device_t dev)
+{
+	u8 gpp_cfg;
+	u8 value;
+	u8 dev_index;
+
+	dev_index = dev->path.pci.devfn >> 3;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	if (dev_index < 4) {
+		gpp_cfg = cfg->gpp1_configuration;
+	} else if (dev_index > 0xa) {
+		gpp_cfg = cfg->gpp2_configuration;
+	} else {
+		return;
+	}
+
+	if (gpp_cfg == 0) {
+		/* Configuration 16:0,  leave the default value */
+	} else if (gpp_cfg == 1) {
+		/* Configuration 8:8 */
+		value = 0x60;
+		set_pcie_enable_bits(dev, 0x10, 0x3f << 8, value << 8);
+		set_pcie_enable_bits(dev, 0x20, 1 << 11, 1 << 11);
+	} else {
+		printk(BIOS_DEBUG, "buggy gpp configuration\n");
+	}
+}
+
+#if 0				/* BTS report error without this function. But some board
+				 * fail to boot. Leave it here for future debug. */
+
+/*
+ * Enable LCLK clock gating
+ */
+static void EnableLclkGating(device_t dev)
+{
+	u8 port;
+	u32 reg = 0;
+	u32 mask = 0;
+	u32 value = 0;
+	device_t nb_dev = dev_find_slot(0, 0);
+	device_t clk_f1= dev_find_slot(0, 1);
+
+	port = dev->path.pci.devfn >> 3;
+	switch (port) {
+ 		//PCIE_CORE_INDEX_GPP1
+		case 2:
+		case 3:
+			reg = 0x94;
+			mask = 1 << 16;
+			break;
+
+ 		//PCIE_CORE_INDEX_GPP2
+		case 11:
+		case 12:
+			reg = 0xE8;
+			value = 1 << 28;
+			break;
+
+		//PCIE_CORE_INDEX_GPP3a
+		case 4 ... 7:
+		case 9:
+		case 10:
+			reg = 0xE8;
+			value = 1 << 31;
+			break;
+
+		//PCIE_CORE_INDEX_GPP3b;
+		case 13:
+			reg = 0xE8;
+			value = 1 << 25;
+			break;
+
+ 		//PCIE_CORE_INDEX_SB;
+		case 8:
+			reg = 0x94;
+			mask = 1 << 24;
+			break;
+		default:
+			break;
+	}
+	/* enable access func1 */
+	set_nbcfg_enable_bits(nb_dev, 0x4C, 1 << 0, 1 << 0);
+	set_nbcfg_enable_bits(clk_f1, reg, mask, value);
+}
+#endif
+
+/*****************************************
+* Compliant with CIM_33's PCIEGPPInit
+* nb_dev:
+*	root bridge struct
+* dev:
+*	p2p bridge struct
+* port:
+*	p2p bridge number, 4-10
+*****************************************/
+void sr5650_gpp_sb_init(device_t nb_dev, device_t dev, u32 port)
+{
+	u32 gpp_sb_sel = 0;
+	struct southbridge_amd_sr5650_config *cfg =
+	    (struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	printk(BIOS_DEBUG, "gpp_sb_init nb_dev=0x%p, dev=0x%p, port=0x%x\n", nb_dev, dev, port);
+	switch (port) {
+	case 2:
+	case 3:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP1;
+		break;
+	case 4 ... 7:
+	case 9:
+	case 10:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP3a;
+		break;
+	case 8:
+		gpp_sb_sel = PCIE_CORE_INDEX_SB;
+		break;
+	case 11:
+	case 12:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP2;
+		break;
+	case 13:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP3b;
+		break;
+	}
+
+	/* Init common Core registers */
+	set_pcie_enable_bits(dev, 0xB1, 1 << 28 | 1 << 23 | 1 << 20 | 1 << 19,
+		1 << 28 | 1 << 23 | 1 << 20 | 1 << 19);
+	if (gpp_sb_sel == PCIE_CORE_INDEX_GPP3a) {
+		set_pcie_enable_bits(dev, 0xB1, 1 << 22, 1 << 22);
+		/* 4.3.3.2.3 Step 10: Dynamic Slave CPL Buffer Allocation */
+		gpp3a_cpl_buf_alloc(nb_dev, dev);
+	}
+	if (gpp_sb_sel == PCIE_CORE_INDEX_GPP1 || gpp_sb_sel == PCIE_CORE_INDEX_GPP2) {
+		gpp12_cpl_buf_alloc(nb_dev, dev);
+	}
+	set_pcie_enable_bits(dev, 0xA1, (1 << 26) | (1 << 24) | (1 << 11), 1 << 11);
+	set_pcie_enable_bits(dev, 0xA0, 0x0000FFF0, 0x6830);
+	// PCIE should not ignore malformed packet error or ATS request
+	set_pcie_enable_bits(dev, 0x70, 1 << 12, 0);
+	//Step 14.1: Advertising Hot Plug Capabilities
+	set_pcie_enable_bits(dev, 0x10, 1 << 4, 1 << 4); //Enable power fault
+
+	set_pcie_enable_bits(nb_dev, 0xC1 | gpp_sb_sel, 1 << 0, 1 << 0);
+
+	/* init GPP core */
+	/* 4.4.2.step13.1. Sets RCB completion timeout to be 200ms */
+	pci_ext_write_config32(nb_dev, dev, 0x80, 0xF << 0, 0x6 << 0);
+	/* 4.4.2.step13.2. RCB completion timeout on link down to shorten enumeration time. */
+	set_pcie_enable_bits(dev, 0x70, 1 << 19, 1 << 19);
+	/* 4.4.2.step13.3. Enable slave ordering rules */
+	set_pcie_enable_bits(nb_dev, 0x20 | gpp_sb_sel, 1 << 8, 0 << 8);
+	/* 4.4.2.step13.4. Sets DMA payload size to 64 bytes. */
+	set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 7 << 10, 4 << 10);
+	/* 4.4.2.step13.5. Set REGS_DLP_IGNORE_IN_L1_EN to ignore DLLPs
+	   during L1 so that Tx Clk can be turned off. */
+	set_pcie_enable_bits(nb_dev, 0x02 | gpp_sb_sel, 1 << 0 | 1 << 8, 1 << 0 | 1 << 8); // add bit 8 from CIMx
+	/* 4.4.2.step13.6. Set REGS_LC_ALLOW_TX_L1_CONTROL to allow TX to
+	   prevent LC from going to L1 when there are outstanding completions.*/
+	set_pcie_enable_bits(dev, 0x02, 1 << 15, 1 << 15);
+	/* 4.4.2.step13.7. Set REGS_LC_DONT_GO_TO_L0S_IF_L1_ARMED to prevent
+	   lc to go to from L0 to Rcv_L0s if L1 is armed. */
+	set_pcie_enable_bits(dev, 0xA1, 1 << 11, 1 << 11);
+	/* 4.4.2.step13.8. CMGOOD_OVERRIDE for all five PCIe cores. */
+	set_nbmisc_enable_bits(nb_dev, 0x22, 1 << 27, 1 << 27);
+	/* 4.4.2.step13.9. Prevents Electrical Idle from causing a
+	   transition from Rcv_L0 to Rcv_L0s. */
+	set_pcie_enable_bits(dev, 0xB1, 1 << 20, 1 << 20);
+	/* 4.4.2.step13.10. Prevents the LTSSM from going to Rcv_L0s if
+	   it has already acknowledged a request to go
+	   to L1 but it has not transitioned there yet. */
+	/* seems the same as step13.7 */
+	set_pcie_enable_bits(dev, 0xA1, 1 << 11, 1 << 11);
+	/* 4.4.2.step13.11. Transmits FTS before Recovery. */
+	set_pcie_enable_bits(dev, 0xA3, 1 << 9, 1 << 9);
+	/* 4.4.2.step13.12. Sets TX arbitration algorithm to round robin
+	   for PCIE-GPP1, PCIE-GPP2, PCIE-GPP3a and PCIE-GPP3b cores only. */
+	//if (gpp_sb_sel != PCIE_CORE_INDEX_SB) /* RPR NOT set SB_CORE, BTS set SB_CORE, we comply with BTS */
+		set_pcie_enable_bits(nb_dev, 0x1C | gpp_sb_sel, 0x7FF, 0x109);
+	/* 4.4.2.step13.13. Sets number of TX Clocks to drain TX Pipe to 0x3.*/
+	set_pcie_enable_bits(dev, 0xA0, 0xF << 4, 0x3 << 4);
+	/* 4.4.2.step13.14. Lets PI use Electrical Idle from PHY when
+	   turning off PLL in L1 at Gen 2 speed instead of Inferred Electrical
+	   Idle.
+	   NOTE: LC still uses Inferred Electrical Idle. */
+	set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 3 << 14, 2 << 14);
+	/* 4.4.2.step13.15. Turn on rx_fronten_en for all active lanes upon
+	   exit from Electrical Idle, rather than being tied to PLL_PDNB. */
+	set_pcie_enable_bits(nb_dev, 0xC2 | gpp_sb_sel, 1 << 25, 1 << 25);
+
+	/* 4.4.2.step13.16. Advertises TX L0s and L1 exit latency.
+	   TX L0s exit latency to be 100b: 512ns to less than 1us;
+	   L1 exit latency to be 011b: 4us to less than 8us.
+	   For Hot-Plug Slots: Advertise TX L0s and L1 exit latency.
+	   TX L0s exit latency to be 110b: 2us to 4us.
+	   L1 exit latency to be 111b: more than 64us.*/
+	//set_pcie_enable_bits(dev, 0xC1, 0xF << 0, 0xC << 0); /* 0xF for htplg. */
+	set_pcie_enable_bits(dev, 0xC1, 0xF << 0, 0xF << 0); /* 0xF for htplg. */
+	/* 4.4.2.step13.17. Always ACK an ASPM L1 entry DLLP to
+	   workaround credit control issue on PM_NAK
+	   message of SB700 and SB800. */
+	/* 4.4.4.step13.18. To allow advertising Gen 2 capabilities to Southbridge. */
+	if (port == 8) {
+		set_pcie_enable_bits(dev, 0xA0, 1 << 23, 1 << 23);
+		set_pcie_enable_bits(nb_dev, 0xC1 | gpp_sb_sel, 1 << 1, 1 << 1);
+	}
+	/* 4.4.2.step13.19. CMOS Option (Gen 2 AUTO-Part 1 - Enabled by Default) */
+	/* 4.4.2.step13.20. CMOS Option (RC Advertised Gen 2-Part1 - Disabled by Default)*/
+	set_nbcfg_enable_bits(dev, 0x88, 0xF << 0, 0x2 << 0);
+	/* Disables GEN2 capability of the device.
+	 * RPR typo- it says enable but the bit setting says disable.
+	 * Disable it here and we enable it later. */
+	set_pcie_enable_bits(dev, 0xA4, 1 << 0, 1 << 0);
+	/* 4.4.2.step13.21. */
+	/* 4.4.2.step13.22 */
+	/* Enable native PME. */
+	set_pcie_enable_bits(dev, 0x10, 1 << 3, 1 < 3);
+	/* This bit when set indicates that the PCIe Link associated with this port
+	   is connected to a slot. */
+	pci_ext_write_config32(nb_dev, dev, 0x5a, 1 << 8, 1 << 8);
+	/* This bit when set indicates that this slot is capable of supporting
+	   Hot-Plug operations. */
+	set_nbcfg_enable_bits(dev, 0x6C, 1 << 6, 1 << 6);
+	/* Enables flushing of TLPs when Data Link is down. */
+	set_pcie_enable_bits(dev, 0x20, 1 << 19, 0 << 19);
+
+	/* 4.4.2.step14. Server Class Hot Plug Feature */
+	/* 4.4.2 step14.1: Advertising Hot Plug Capabilities */
+	/* 4.4.2.step14.2: Firmware Upload */
+	/* 4.4.2.Step14.3: SBIOS Acknowledgment to Firmware of Successful Firmware Upload */
+	/* step14.4 */
+	/* step14.5 */
+	/* skip */
+
+	/* CIMx LPC Deadlock workaround - Enable Memory Write Map*/
+	if (gpp_sb_sel == PCIE_CORE_INDEX_SB) {
+		set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 1 << 9, 1 << 9);
+		set_htiu_enable_bits(nb_dev, 0x06, 1 << 26, 1 << 26);
+	}
+
+	/* This CPL setup requires more than this one register and should be done in gpp_core.
+	 * The additional setup is for the different revisions. */
+
+	/* CIMx CommonPortInit settings that are not set above. */
+	pci_ext_write_config32(nb_dev, dev, 0x88, 0xF0, 1 << 0); /* LINK_CRTL2 */
+
+	if ( port == 8 )
+		set_pcie_enable_bits(dev, 0xA0, 0, 1 << 23);
+
+	/* set automatic Gen2 support, needs mainboard config option as Gen2 can cause issues on some platforms. */
+	init_gen2(nb_dev, dev, port);
+	set_pcie_enable_bits(dev, 0xA4, 1 << 29, 1 << 29);
+	set_pcie_enable_bits(dev, 0xC0, 1 << 15, 0);
+	set_pcie_enable_bits(dev, 0xA2, 1 << 13, 0);
+
+	/* Hotplug Support - bit5 + bit6  capable and surprise */
+	pci_ext_write_config32(nb_dev, dev, 0x6c, 0x60, 0x60);
+
+	/* Set interrupt pin info 0x3d */
+	pci_ext_write_config32(nb_dev, dev, 0x3c, 1 << 8, 1 << 8);
+
+	/* 5.12.9.3 Hotplug step 1 - NB_PCIE_ROOT_CTRL - enable pm irq
+	The RPR is wrong - this is not a PCIEND_P register */
+	pci_ext_write_config32(nb_dev, dev, 0x74, 1 << 3, 1 << 3);
+
+	/* 5.12.9.3 step 2 - PCIEP_PORT_CNTL - enable hotplug messages */
+	if ( port != 8)
+		set_pcie_enable_bits(dev, 0x10, 1 << 2, 1 << 2);
+
+	/* Not sure about this PME setup */
+	/* Native PME */
+	set_pcie_enable_bits(dev, 0x10, 1 << 3, 1 << 3); /* Not set in CIMx */
+
+	/* PME Enable */
+	pci_ext_write_config32(nb_dev, dev, 0x54, 1 << 8, 1 << 8); /* Not in CIMx */
+
+	/* 4.4.3 Training for GPP devices */
+	/* init GPP */
+	switch (port) {
+	case 2:
+	case 3:
+	case 4:	/* GPP_SB */
+	case 5:
+	case 6:
+	case 7:
+	case 9:	/*GPP*/
+	case 10:
+	case 11:
+	case 12:
+	case 13:
+		/* 4.4.2.step13.5. Blocks DMA traffic during C3 state */
+		set_pcie_enable_bits(dev, 0x10, 1 << 0, 0 << 0);
+		/* Enabels TLP flushing */
+		set_pcie_enable_bits(dev, 0x20, 1 << 19, 0 << 19);
+
+		/* check port enable */
+		if (cfg->port_enable & (1 << port)) {
+			PcieReleasePortTraining(nb_dev, dev, port);
+			if (!(AtiPcieCfg.Config & PCIE_GPP_COMPLIANCE)) {
+				u8 res = PcieTrainPort(nb_dev, dev, port);
+				printk(BIOS_DEBUG, "PcieTrainPort port=0x%x result=%d\n", port, res);
+				if (res) {
+					AtiPcieCfg.PortDetect |= 1 << port;
+				}
+			}
+		}
+		break;
+	case 8:		/* SB */
+		break;
+	default:
+		break;
+	}
+
+	/* Re-enable RC ordering logic after training (from CIMx)*/
+	set_pcie_enable_bits(nb_dev, 0x20 | gpp_sb_sel, 1 << 9, 0);
+
+	/* Advertising Hot Plug Capabilities */
+	pci_ext_write_config32(nb_dev, dev, 0x6c, 0x04001B, 0x00001B);
+
+	/* PCIE Late Init (CIMx late init - Maybe move somewhere else? Later in the coreboot PCI device enum?) */
+	/* Set Slot Number */
+	pci_ext_write_config32(nb_dev, dev, 0x6c, 0x1FFF << 19, port << 19);
+
+	/* Set Slot present 0x5A*/
+	pci_ext_write_config32(nb_dev, dev, 0x58, 1 << 24, 1 << 24);
+
+	//PCIE-GPP1 TXCLK Clock Gating In L1  Late Core sttting - Maybe move somewhere else? */
+	set_pcie_enable_bits(nb_dev, 0x11 | gpp_sb_sel, 0xF << 0, 0x0C << 0);
+	/* Enable powering down PLLs in L1 or L23 Ready states.
+	 * Turns off PHY`s RX FRONTEND during L1 when PLL power down is enabled */
+	set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 0x1219, 0x1009);
+	/* 4.4..7.1 TXCLK Gating in L1, Enables powering down TXCLK clock pads on the receive side. */
+	set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 1 << 6, 1 << 6);
+
+	/* Step 21: Register Locking PCIE Misc. Late Core sttting - Must move somewhere do PciInitLate FIXME */
+	/* Lock HWInit Register */
+	//set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 1 << 0, 1 << 0);
+
+	/* Step 27: LCLK Gating	*/
+	//EnableLclkGating(dev);
+
+	/* Set Common Clock */
+	/* If dev present, set PcieCapPtr+0x10, BIT6);
+	 * set dev 0x68,bit 6
+	 * retrain link, set dev, 0x68 bit 5;
+	 * wait dev 0x6B bit3 clear
+	 */
+
+	if (port == 8){
+		PciePowerOffGppPorts(nb_dev, dev, port); /* , This should be run for all ports that are not hotplug and don't detect devices */
+	}
+}
+
+/*****************************************
+* Compliant with CIM_33's PCIEConfigureGPPCore
+*****************************************/
+void config_gpp_core(device_t nb_dev, device_t sb_dev)
+{
+	u32 reg;
+	struct southbridge_amd_sr5650_config *cfg =
+		(struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
+
+	reg = nbmisc_read_index(nb_dev, 0x20);
+	if (AtiPcieCfg.Config & PCIE_ENABLE_STATIC_DEV_REMAP)
+		reg &= 0xfffffffd;	/* set bit1 = 0 */
+	else
+		reg |= 0x2;	/* set bit1 = 1 */
+	nbmisc_write_index(nb_dev, 0x20, reg);
+
+	/* Must perform PCIE-GPP1, GPP2, GPP3a global reset anyway */
+	reg = nbmisc_read_index(nb_dev, 0x8);
+	reg |= (1 << 31) | (1 << 15) | (1 << 13);	//asserts
+	nbmisc_write_index(nb_dev, 0x8, reg);
+	reg &= ~((1 << 31) | (1 << 15) | (1 << 13));	//De-aserts
+	nbmisc_write_index(nb_dev, 0x8, reg);
+
+	reg = nbmisc_read_index(nb_dev, 0x67); /* get STRAP_BIF_LINK_CONFIG at bit 0-4 */
+	if (cfg->gpp3a_configuration != (reg & 0x1F))
+		switching_gpp3a_configurations(nb_dev, sb_dev);
+	reg = nbmisc_read_index(nb_dev, 0x8);  /* get MULTIPORT_CONFIG_GPP1 MULTIPORT_CONFIG_CONFIG_GPP2 at bit 8,9 */
+	if ((cfg->gpp1_configuration << 8) != (reg & (1 << 8)))
+		switching_gpp1_configurations(nb_dev, sb_dev);
+	if ((cfg->gpp2_configuration << 9) != (reg & (1 << 9)))
+		switching_gpp2_configurations(nb_dev, sb_dev);
+	ValidatePortEn(nb_dev);
+}
+
+/*****************************************
+* Compliant with CIM_33's PCIEMiscClkProg
+*****************************************/
+void pcie_config_misc_clk(device_t nb_dev)
+{
+	u32 reg;
+	//struct bus pbus; /* fake bus for dev0 fun1 */
+
+	reg = pci_read_config32(nb_dev, 0x4c);
+	reg |= 1 << 0;
+	pci_write_config32(nb_dev, 0x4c, reg);
+
+#if 0				/* TODO: Check the mics clock later. */
+	if (AtiPcieCfg.Config & PCIE_GFX_CLK_GATING) {
+		/* TXCLK Clock Gating */
+		set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 0, 3 << 0);
+		set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22);
+		set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_GFX, (3 << 6) | (~0xf), 3 << 6);
+
+		/* LCLK Clock Gating */
+		reg =  pci_cf8_conf1.read32(&pbus, 0, 1, 0x94);
+		reg &= ~(1 << 16);
+		pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg);
+	}
+
+	if (AtiPcieCfg.Config & PCIE_GPP_CLK_GATING) {
+		/* TXCLK Clock Gating */
+		set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 4, 3 << 4);
+		set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22);
+		set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_SB, (3 << 6) | (~0xf), 3 << 6);
+
+		/* LCLK Clock Gating */
+		reg =  pci_cf8_conf1.read32(&pbus, 0, 1, 0x94);
+		reg &= ~(1 << 24);
+		pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg);
+	}
+#endif
+
+	reg = pci_read_config32(nb_dev, 0x4c);
+	reg &= ~(1 << 0);
+	pci_write_config32(nb_dev, 0x4c, reg);
+}
diff --git a/src/southbridge/amd/sr5650/rev.h b/src/southbridge/amd/sr5650/rev.h
new file mode 100644
index 0000000..5612d0b
--- /dev/null
+++ b/src/southbridge/amd/sr5650/rev.h
@@ -0,0 +1,27 @@
+/*
+ * 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 __SR5650_REV_H__
+#define __SR5650_REV_H__
+
+#define	REV_SR5650_A11	0
+#define	REV_SR5650_A12	1
+#define	REV_SR5650_A21	2
+
+#endif	/* __SR5650_REV_H__ */
diff --git a/src/southbridge/amd/sr5650/sr5650.c b/src/southbridge/amd/sr5650/sr5650.c
new file mode 100644
index 0000000..616ca44
--- /dev/null
+++ b/src/southbridge/amd/sr5650/sr5650.c
@@ -0,0 +1,432 @@
+/*
+ * 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
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <cpu/x86/msr.h>
+#include <cpu/amd/mtrr.h>
+#include <delay.h>
+#include "sr5650.h"
+#include "cmn.h"
+
+/*
+ * extern function declaration
+ */
+extern void set_pcie_dereset(void);
+extern void set_pcie_reset(void);
+
+/* extension registers */
+u32 pci_ext_read_config32(device_t nb_dev, device_t dev, u32 reg)
+{
+	/*get BAR3 base address for nbcfg0x1c */
+	u32 addr = pci_read_config32(nb_dev, 0x1c) & ~0xF;
+	printk(BIOS_DEBUG, "addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary,
+		     dev->path.pci.devfn);
+	addr |= dev->bus->secondary << 20 |	/* bus num */
+	    dev->path.pci.devfn << 12 | reg;
+	return *((u32 *) addr);
+}
+
+void pci_ext_write_config32(device_t nb_dev, device_t dev, u32 reg_pos, u32 mask, u32 val)
+{
+	u32 reg_old, reg;
+
+	/*get BAR3 base address for nbcfg0x1c */
+	u32 addr = pci_read_config32(nb_dev, 0x1c) & ~0xF;
+	/*printk(BIOS_DEBUG, "write: addr=%x,bus=%x,devfn=%x\n", addr, dev->bus->secondary,
+		     dev->path.pci.devfn);*/
+	addr |= dev->bus->secondary << 20 |	/* bus num */
+	    dev->path.pci.devfn << 12 | reg_pos;
+
+	reg = reg_old = *((u32 *) addr);
+	reg &= ~mask;
+	reg |= val;
+	if (reg != reg_old) {
+		*((u32 *) addr) = reg;
+	}
+}
+
+u32 nbpcie_p_read_index(device_t dev, u32 index)
+{
+	return nb_read_index((dev), NBPCIE_INDEX, (index));
+}
+
+void nbpcie_p_write_index(device_t dev, u32 index, u32 data)
+{
+	nb_write_index((dev), NBPCIE_INDEX, (index), (data));
+}
+
+u32 nbpcie_ind_read_index(device_t nb_dev, u32 index)
+{
+	return nb_read_index((nb_dev), NBPCIE_INDEX, (index));
+}
+
+void nbpcie_ind_write_index(device_t nb_dev, u32 index, u32 data)
+{
+	nb_write_index((nb_dev), NBPCIE_INDEX, (index), (data));
+}
+
+/***********************************************************
+* To access bar3 we need to program PCI MMIO 7 in K8.
+* in_out:
+*	1: enable/enter k8 temp mmio base
+*	0: disable/restore
+***********************************************************/
+void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add)
+{
+	/* K8 Function1 is address map */
+	device_t k8_f1;
+	device_t np = dev_find_slot(0, PCI_DEVFN(0x19, 1));
+	u16 node;
+
+	for (node = 0; node < CONFIG_MAX_PHYSICAL_CPUS; node++) {
+		k8_f1 = dev_find_slot(0, PCI_DEVFN(0x18 + node, 1));
+		if (!k8_f1) {
+			break;
+		}
+
+		if (in_out) {
+			/* Fill MMIO limit/base pair. */
+			pci_write_config32(k8_f1, 0xbc,
+					   (((pcie_base_add + 0x10000000 -
+					      1) >> 8) & 0xffffff00) | 0x8 | (np ? 2 << 4 : 0 << 4));
+			pci_write_config32(k8_f1, 0xb8, (pcie_base_add >> 8) | 0x3);
+			pci_write_config32(k8_f1, 0xb4,
+					   ((mmio_base_add + 0x10000000 -
+					     1) >> 8) | (np ? 2 << 4 : 0 << 4));
+			pci_write_config32(k8_f1, 0xb0, (mmio_base_add >> 8) | 0x3);
+		} else {
+			pci_write_config32(k8_f1, 0xb8, 0);
+			pci_write_config32(k8_f1, 0xbc, 0);
+			pci_write_config32(k8_f1, 0xb0, 0);
+			pci_write_config32(k8_f1, 0xb4, 0);
+		}
+	}
+}
+
+void PcieReleasePortTraining(device_t nb_dev, device_t dev, u32 port)
+{
+	switch (port) {
+	case 2:		/* GPP1, bit4-5 */
+	case 3:
+		set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG,
+				       1 << (port + 2), 0 << (port + 2));
+		break;
+	case 4:		/* GPP3a, bit20-24 */
+	case 5:
+	case 6:
+	case 7:
+		set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG,
+				       1 << (port + 17), 0 << (port + 17));
+		break;
+	case 9:		/* GPP3a, bit25,26 */
+	case 10:
+		set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG,
+				      1 << (port + 16), 0 << (port + 16));
+		break;
+	case 11:	/* GPP2, bit6-7 */
+	case 12:
+		set_nbmisc_enable_bits(nb_dev, PCIE_LINK_CFG,
+				       1 << (port - 5), 0 << (port - 5));
+		break;
+	case 13:	/* GPP3b, bit4 of NBMISCIND:0x2A */
+		set_nbmisc_enable_bits(nb_dev, 0x2A,
+				       1 << 4, 0 << 4);
+		break;
+	}
+}
+
+/********************************************************************************************************
+* Output:
+*	0: no device is present.
+*	1: device is present and is trained.
+********************************************************************************************************/
+u8 PcieTrainPort(device_t nb_dev, device_t dev, u32 port)
+{
+	u16 count = 5000;
+	u32 lc_state, reg, current_link_width, lane_mask;
+	u8 current, res = 0;
+	u32 gpp_sb_sel = 0;
+
+	switch (port) {
+	case 2:
+	case 3:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP1;
+		break;
+	case 4 ... 7:
+	case 9:
+	case 10:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP3a;
+		break;
+	case 11:
+	case 12:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP2;
+		break;
+	case 13:
+		gpp_sb_sel = PCIE_CORE_INDEX_GPP3b;
+		break;
+	}
+
+	while (count--) {
+		udelay(40200);
+		lc_state = nbpcie_p_read_index(dev, 0xa5);	/* lc_state */
+		printk(BIOS_DEBUG, "PcieLinkTraining port=%x:lc current state=%x\n",
+			     port, lc_state);
+		current = lc_state & 0x3f;	/* get LC_CURRENT_STATE, bit0-5 */
+
+		switch (current) {
+			/* 0x00-0x04 means no device is present */
+		case 0x06:
+			/* read back current link width [6:4]. */
+			current_link_width = (nbpcie_p_read_index(dev, 0xA2) >> 4) & 0x7;
+			/* 4 means 7:4 and 15:12
+			 * 3 means 7:2 and 15:10
+			 * 2 means 7:1 and 15:9
+			 * egnoring the reversal case
+			 */
+			lane_mask = (0xFF << (current_link_width - 2) * 2) & 0xFF;
+			reg = nbpcie_ind_read_index(nb_dev, 0x65 | gpp_sb_sel);
+			reg |= lane_mask << 8 | lane_mask;
+			/* NOTE: See the comments in rs780_pcie.c
+			 * switching_gppsb_configurations
+			 * In CIMx 4.5.0 and RPR, 4c is done before 5 & 6.
+			 * But in this way, a x4 device in port B (dev 4) of
+			 * Configuration B can only be detected as x1, instead
+			 * of x4. When the port B is being trained, the
+			 * LC_CURRENT_STATE is 6 and the LC_LINK_WIDTH_RD is 1.
+			 * We have to set the PCIEIND:0x65 as 0xE0E0 and reset
+			 * the slot. Then the card seems to work in x1 mode.
+			 */
+			reg = 0xE0E0; /*I think that the lane_mask calc above is wrong, and this can't be hardcoded because the configuration changes.*/
+			nbpcie_ind_write_index(nb_dev, 0x65 | gpp_sb_sel, reg);
+			printk(BIOS_DEBUG, "link_width=%x, lane_mask=%x",
+				     current_link_width, lane_mask);
+			set_pcie_reset();
+			mdelay(1);
+			set_pcie_dereset();
+			break;
+		case 0x07:	/* device is in compliance state (training sequence is done). Move to train the next device */
+			res = 1;
+			count = 0;
+			break;
+		case 0x10:
+			reg =
+			    pci_ext_read_config32(nb_dev, dev,
+						  PCIE_VC0_RESOURCE_STATUS);
+			printk(BIOS_DEBUG, "PcieTrainPort reg=0x%x\n", reg);
+			/* check bit1 */
+			if (reg & VC_NEGOTIATION_PENDING) {	/* bit1=1 means the link needs to be re-trained. */
+				/* set bit8=1, bit0-2=bit4-6 */
+				u32 tmp;
+				reg =
+				    nbpcie_p_read_index(dev,
+							PCIE_LC_LINK_WIDTH);
+				tmp = (reg >> 4) && 0x3;	/* get bit4-6 */
+				reg &= 0xfff8;	/* clear bit0-2 */
+				reg += tmp;	/* merge */
+				reg |= 1 << 8;
+				count++;	/* CIM said "keep in loop"?  */
+			} else {
+				res = 1;
+				count = 0;
+			}
+			break;
+		default:
+			/* CIMx Unknown Workaround - There is a device that won't train. Try to reset it. */
+			/* if there are no device resets and nothing works, CIMx does a cf9 system reset (yikes!) */
+			set_pcie_reset();
+			mdelay(1);
+			set_pcie_dereset();
+			res = 0;
+			count = 0;	/* break loop */
+			break;
+		}
+	}
+	return res;
+}
+
+/*
+* Compliant with CIM_33's ATINB_SetToms.
+* Set Top Of Memory below and above 4G.
+*/
+void sr5650_set_tom(device_t nb_dev)
+{
+	extern u64 uma_memory_base;
+
+	/* set TOM */
+	pci_write_config32(nb_dev, 0x90, uma_memory_base);
+}
+
+u32 get_vid_did(device_t dev)
+{
+	return pci_read_config32(dev, 0);
+}
+
+void sr5650_nb_pci_table(device_t nb_dev)
+{	/* NBPOR_InitPOR function. */
+	u8 temp8;
+	u16 temp16;
+	u32 temp32;
+
+	/* Program NB PCI table. */
+	temp16 = pci_read_config16(nb_dev, 0x04);
+	printk(BIOS_DEBUG, "NB_PCI_REG04 = %x.\n", temp16);
+	temp32 = pci_read_config32(nb_dev, 0x84);
+	printk(BIOS_DEBUG, "NB_PCI_REG84 = %x.\n", temp32);
+	//Reg4Ch[1]=1 (APIC_ENABLE) force cpu request with address 0xFECx_xxxx to south-bridge
+	//Reg4Ch[6]=1 (BMMsgEn) enable BM_Set message generation
+	pci_write_config8(nb_dev, 0x4c, 0x42);
+	temp8 = pci_read_config8(nb_dev, 0x4e);
+	temp8 |= 0x05; /* BAR1_ENABLE */
+	pci_write_config8(nb_dev, 0x4e, temp8);
+
+	temp32 = pci_read_config32(nb_dev, 0x4c);
+	printk(BIOS_DEBUG, "NB_PCI_REG4C = %x.\n", temp32);
+
+	/* disable GFX debug. */
+	temp8 = pci_read_config8(nb_dev, 0x8d);
+	temp8 &= ~(1<<1);
+	pci_write_config8(nb_dev, 0x8d, temp8);
+
+	/* set temporary NB TOM to 0x40000000. */
+	sr5650_set_tom(nb_dev);
+
+	/* Program NB HTIU table. */
+	//set_htiu_enable_bits(nb_dev, 0x05, 1<<10 | 1<<9, 1<<10|1<<9);
+	set_htiu_enable_bits(nb_dev, 0x06, 1, 0x4203a202);
+	//set_htiu_enable_bits(nb_dev, 0x07, 1<<1 | 1<<2, 0x8001);
+	set_htiu_enable_bits(nb_dev, 0x15, 0, 1<<31 | 1<<30 | 1<<27);
+	set_htiu_enable_bits(nb_dev, 0x1c, 0, 0xfffe0000);
+	set_htiu_enable_bits(nb_dev, 0x0c, 0x3f, 1 | 1<<3);
+	set_htiu_enable_bits(nb_dev, 0x19, 0xfffff+(1<<31), 0x186a0+(1<<31));
+	set_htiu_enable_bits(nb_dev, 0x16, 0x3f<<10, 0x7<<10);
+	set_htiu_enable_bits(nb_dev, 0x23, 0, 1<<28);
+}
+
+/***********************************************
+*	0:00.0  NBCFG	:
+*	0:00.1  CLK	: bit 0 of nb_cfg 0x4c : 0 - disable, default
+*	0:01.0  P2P Internal:
+*	0:02.0  P2P	: bit 2 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:03.0  P2P	: bit 3 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:04.0  P2P	: bit 4 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:05.0  P2P	: bit 5 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:06.0  P2P	: bit 6 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:07.0  P2P	: bit 7 of nbmiscind 0x0c : 0 - enable, default	   + 32 * 2
+*	0:08.0  NB2SB	: bit 6 of nbmiscind 0x00 : 0 - disable, default   + 32 * 1
+* case 0 will be called twice, one is by cpu in hypertransport.c line458,
+* the other is by sr5650.
+***********************************************/
+void sr5650_enable(device_t dev)
+{
+	device_t nb_dev = 0, sb_dev = 0;
+	int dev_ind;
+
+	printk(BIOS_INFO, "sr5650_enable: dev=%p, VID_DID=0x%x\n", dev, get_vid_did(dev));
+	nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0));
+	if (!nb_dev) {
+		die("sr5650_enable: CAN NOT FIND SR5650 DEVICE, HALT!\n");
+		/* NOT REACHED */
+	}
+
+	/* sb_dev (dev 8) is a bridge that links to southbridge. */
+	sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0));
+	if (!sb_dev) {
+		die("sr5650_enable: CAN NOT FIND SB bridge, HALT!\n");
+		/* NOT REACHED */
+	}
+
+	dev_ind = dev->path.pci.devfn >> 3;
+	switch (dev_ind) {
+	case 0:		/* bus0, dev0, fun0; */
+		printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n");
+		enable_pcie_bar3(nb_dev);	/* PCIEMiscInit */
+
+		config_gpp_core(nb_dev, sb_dev);
+		sr5650_gpp_sb_init(nb_dev, sb_dev, 8);
+
+		sr5650_nb_pci_table(nb_dev);
+		break;
+
+	case 2:		/* bus0, dev2,3 GPP1 */
+	case 3:
+		printk(BIOS_INFO, "Bus-0, Dev-2,3, Fun-0. enable=%d\n", dev->enabled);
+		set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
+				       (dev->enabled ? 0 : 1) << dev_ind);
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind); /* Note, dev 2,3 are generic PCIe ports. */
+		break;
+	case 4:		/* bus0, dev4-7, four GPP3a */
+	case 5:
+	case 6:
+	case 7:
+		enable_pcie_bar3(nb_dev);	/* PCIEMiscInit */
+		printk(BIOS_INFO, "Bus-0, Dev-4,5,6,7, Fun-0. enable=%d\n",
+			    dev->enabled);
+		set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
+				       (dev->enabled ? 0 : 1) << dev_ind);
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind);
+		break;
+	case 8:		/* bus0, dev8, SB */
+		printk(BIOS_INFO, "Bus-0, Dev-8, Fun-0. enable=%d\n", dev->enabled);
+		set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6,
+				       (dev->enabled ? 1 : 0) << 6);
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind);
+		disable_pcie_bar3(nb_dev);
+		break;
+	case 9:		/* bus 0, dev 9,10, GPP3a */
+	case 10:
+		printk(BIOS_INFO, "Bus-0, Dev-9, 10, Fun-0. enable=%d\n",
+			    dev->enabled);
+		enable_pcie_bar3(nb_dev);	/* PCIEMiscInit */
+		set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind),
+				       (dev->enabled ? 0 : 1) << (7 + dev_ind));
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind);
+		/* Dont call disable_pcie_bar3(nb_dev) here, otherwise the screen will crash. */
+		break;
+	case 11:
+	case 12:	/* bus 0, dev 11,12, GPP2 */
+		printk(BIOS_INFO, "Bus-0, Dev-11,12, Fun-0. enable=%d\n", dev->enabled);
+		set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind),
+				       (dev->enabled ? 0 : 1) << (7 + dev_ind));
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind);
+		break;
+	case 13:	/* bus 0, dev 12, GPP3b */
+		set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind),
+				       (dev->enabled ? 0 : 1) << (7 + dev_ind));
+		if (dev->enabled)
+			sr5650_gpp_sb_init(nb_dev, dev, dev_ind);
+		break;
+	default:
+		printk(BIOS_DEBUG, "unknown dev: %s\n", dev_path(dev));
+	}
+}
+
+struct chip_operations southbridge_amd_sr5650_ops = {
+	CHIP_NAME("ATI SR5650")
+	.enable_dev = sr5650_enable,
+};
diff --git a/src/southbridge/amd/sr5650/sr5650.h b/src/southbridge/amd/sr5650/sr5650.h
new file mode 100644
index 0000000..5da3544
--- /dev/null
+++ b/src/southbridge/amd/sr5650/sr5650.h
@@ -0,0 +1,119 @@
+/*
+ * 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 __SR5650_H__
+#define __SR5650_H__
+
+#include <stdint.h>
+#include <device/pci_ids.h>
+#include "chip.h"
+#include "rev.h"
+
+typedef struct __PCIE_CFG__ {
+	u16 Config;
+	u8 ResetReleaseDelay;
+	u8 Gfx0Width;
+	u8 Gfx1Width;
+	u8 GfxPayload;
+	u8 GppPayload;
+	u16 PortDetect;
+	u8 PortHp;		/* hot plug */
+	u16 DbgConfig;
+	u32 DbgConfig2;
+	u8 GfxLx;
+	u8 GppLx;
+	u8 NBSBLx;
+	u8 PortSlotInit;
+	u8 Gfx0Pwr;
+	u8 Gfx1Pwr;
+	u8 GppPwr;
+} PCIE_CFG;
+
+/* PCIE config flags */
+#define	PCIE_DUALSLOT_CONFIG		(1 << 0)
+#define	PCIE_OVERCLOCK_ENABLE		(1 << 1)
+#define	PCIE_GPP_CLK_GATING		(1 << 2)
+#define	PCIE_ENABLE_STATIC_DEV_REMAP	(1 << 3)
+#define	PCIE_OFF_UNUSED_GFX_LANES	(1 << 4)
+#define	PCIE_OFF_UNUSED_GPP_LANES	(1 << 5)
+#define	PCIE_DISABLE_HIDE_UNUSED_PORTS	(1 << 7)
+#define	PCIE_GFX_CLK_GATING		(1 << 11)
+#define	PCIE_GFX_COMPLIANCE		(1 << 14)
+#define	PCIE_GPP_COMPLIANCE		(1 << 15)
+
+/* -------------------- ----------------------
+* NBMISCIND
+ ------------------- -----------------------*/
+#define	PCIE_LINK_CFG			0x8
+#define	PCIE_NBCFG_REG7			0x37
+#define	STRAPS_OUTPUT_MUX_7		0x67
+#define	STRAPS_OUTPUT_MUX_A		0x6a
+
+/* -------------------- ----------------------
+* PCIEIND
+ ------------------- -----------------------*/
+#define	PCIE_CI_CNTL			0x20
+#define	PCIE_LC_LINK_WIDTH		0xa2
+#define PCIE_LC_STATE0			0xa5
+#define	PCIE_VC0_RESOURCE_STATUS	0x12a	/* 16bit read only */
+
+#define	PCIE_CORE_INDEX_SB		(0x05 << 16) /* see rpr 4.3.2.2, bdg 2.1 */
+#define	PCIE_CORE_INDEX_GPP1		(0x04 << 16)
+#define	PCIE_CORE_INDEX_GPP2		(0x06 << 16)
+#define	PCIE_CORE_INDEX_GPP1_GPP2	(0x00 << 16)
+#define	PCIE_CORE_INDEX_GPP3a		(0x07 << 16)
+#define	PCIE_CORE_INDEX_GPP3b		(0x03 << 16)
+
+/* contents of PCIE_VC0_RESOURCE_STATUS */
+#define	VC_NEGOTIATION_PENDING		(1 << 1)
+
+#define	LC_STATE_RECONFIG_GPPSB		0x10
+
+/* ------------------------------------------------
+* Global variable
+* ------------------------------------------------- */
+extern PCIE_CFG AtiPcieCfg;
+
+/* ----------------- export funtions ----------------- */
+u32 nbpcie_p_read_index(device_t dev, u32 index);
+void nbpcie_p_write_index(device_t dev, u32 index, u32 data);
+u32 nbpcie_ind_read_index(device_t nb_dev, u32 index);
+void nbpcie_ind_write_index(device_t nb_dev, u32 index, u32 data);
+u32 pci_ext_read_config32(device_t nb_dev, device_t dev, u32 reg);
+void pci_ext_write_config32(device_t nb_dev, device_t dev, u32 reg, u32 mask, u32 val);
+void sr5650_set_tom(device_t nb_dev);
+
+void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add);
+void enable_pcie_bar3(device_t nb_dev);
+void disable_pcie_bar3(device_t nb_dev);
+
+void sr5650_enable(device_t dev);
+void sr5650_gpp_sb_init(device_t nb_dev, device_t dev, u32 port);
+void sr5650_gfx_init(device_t nb_dev, device_t dev, u32 port);
+void avoid_lpc_dma_deadlock(device_t nb_dev, device_t sb_dev);
+void config_gpp_core(device_t nb_dev, device_t sb_dev);
+void PcieReleasePortTraining(device_t nb_dev, device_t dev, u32 port);
+u8 PcieTrainPort(device_t nb_dev, device_t dev, u32 port);
+void pcie_config_misc_clk(device_t nb_dev);
+void fam10_optimization(void);
+void disable_pcie_bridge(void);
+u32 get_vid_did(device_t dev);
+void sr5650_nb_pci_table(device_t nb_dev);
+void init_gen2(device_t nb_dev, device_t dev, u8 port);
+#endif /* SR5650_H */