Addition of Family12/SB900 wrapper code

This change adds the wrapper code for the AMD Family12
cpus and the AMD Hudson-2 (SB900) southbridge to the cpu,
northbridge and southbridge folders respectively.

Change-Id: I22b6efe0017d0af03eaa36a1db1615e5f38da06c
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/53
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

18 files changed, 2283 insertions, 0 deletions

diff --git a/src/southbridge/amd/cimx/Kconfig b/src/southbridge/amd/cimx/Kconfig
index 38fbb49bee..e7e13c16f4 100644
--- a/src/southbridge/amd/cimx/Kconfig
+++ b/src/southbridge/amd/cimx/Kconfig
@@ -18,3 +18,4 @@
 #
 
 source src/southbridge/amd/cimx/sb800/Kconfig
+source src/southbridge/amd/cimx/sb900/Kconfig
diff --git a/src/southbridge/amd/cimx/Makefile.inc b/src/southbridge/amd/cimx/Makefile.inc
index e00a072d6e..421a11c99d 100644
--- a/src/southbridge/amd/cimx/Makefile.inc
+++ b/src/southbridge/amd/cimx/Makefile.inc
@@ -17,3 +17,4 @@
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 #
 subdirs-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB800) += sb800
+subdirs-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB900) += sb900
diff --git a/src/southbridge/amd/cimx/sb900/Amd.h b/src/southbridge/amd/cimx/sb900/Amd.h
new file mode 100755
index 0000000000..cfb983c2cf
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/Amd.h
@@ -0,0 +1,384 @@
+/*****************************************************************************
+ * AMD Generic Encapsulated Software Architecture                            */
+/**
+ * @file
+ *
+ * Agesa structures and definitions
+ *
+ * Contains AMD AGESA/CIMx core interface
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project:      AGESA
+ * @e sub-project:  Include
+ * @e \$Revision:$   @e \$Date:$
+ */
+/*
+ *****************************************************************************
+ *
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _AMD_H_
+#define _AMD_H_
+
+// AGESA Types and Definitions
+#ifndef NULL
+  #define NULL 0
+#endif
+
+#define LAST_ENTRY 0xFFFFFFFF
+#define IOCF8 0xCF8
+#define IOCFC 0xCFC
+#define IN
+#define OUT
+
+#ifndef Int16FromChar
+#define Int16FromChar(a,b) ((a) << 0 | (b) << 8)
+#endif
+#ifndef Int32FromChar
+#define Int32FromChar(a,b,c,d) ((a) << 0 | (b) << 8 | (c) << 16 | (d) << 24)
+#endif
+
+#define IMAGE_SIGNATURE     Int32FromChar ('$', 'A', 'M', 'D')
+
+typedef unsigned int AGESA_STATUS;
+
+#define AGESA_SUCCESS       ((AGESA_STATUS) 0x0)
+#define AGESA_ALERT         ((AGESA_STATUS) 0x40000000)
+#define AGESA_WARNING       ((AGESA_STATUS) 0x40000001)
+#define AGESA_UNSUPPORTED   ((AGESA_STATUS) 0x80000003)
+#define AGESA_ERROR         ((AGESA_STATUS) 0xC0000001)
+#define AGESA_CRITICAL      ((AGESA_STATUS) 0xC0000002)
+#define AGESA_FATAL         ((AGESA_STATUS) 0xC0000003)
+
+typedef AGESA_STATUS (*CALLOUT_ENTRY) (unsigned int Param1, unsigned int Param2, void* ConfigPtr);
+typedef AGESA_STATUS (*IMAGE_ENTRY) (IN OUT void* ConfigPtr);
+typedef AGESA_STATUS (*MODULE_ENTRY) (IN OUT void* ConfigPtr);
+
+///This allocation type is used by the AmdCreateStruct entry point
+typedef enum {
+  PreMemHeap = 0,                                           ///< Create heap in cache.
+  PostMemDram,                                              ///< Create heap in memory.
+  ByHost                                                    ///< Create heap by Host.
+} ALLOCATION_METHOD;
+
+/// These width descriptors are used by the library function, and others, to specify the data size
+typedef enum ACCESS_WIDTH {
+  AccessWidth8 = 1,                                         ///< Access width is 8 bits.
+  AccessWidth16,                                            ///< Access width is 16 bits.
+  AccessWidth32,                                            ///< Access width is 32 bits.
+  AccessWidth64,                                            ///< Access width is 64 bits.
+
+  AccessS3SaveWidth8 = 0x81,                                ///< Save 8 bits data.
+  AccessS3SaveWidth16,                                      ///< Save 16 bits data.
+  AccessS3SaveWidth32,                                      ///< Save 32 bits data.
+  AccessS3SaveWidth64,                                      ///< Save 64 bits data.
+} ACCESS_WIDTH;
+
+// AGESA Structures
+
+/// The standard header for all AGESA services.
+typedef struct _AMD_CONFIG_PARAMS {
+  IN       unsigned int          ImageBasePtr;     ///< The AGESA Image base address.
+  IN       unsigned int          Func;             ///< The service desired, @sa dispatch.h.
+  IN       unsigned int          AltImageBasePtr;  ///< Alternate Image location
+  IN       unsigned int          PcieBasePtr;      ///< PCIe MMIO Base address, if configured.
+  union {                                    ///< Callback pointer
+    IN       unsigned long long          PlaceHolder;    ///< Place holder
+    IN       CALLOUT_ENTRY   CalloutPtr;     ///< For Callout from AGESA
+  } CALLBACK;
+  IN OUT   unsigned int          Reserved[2];      ///< This space is reserved for future use.
+} AMD_CONFIG_PARAMS;
+
+
+/// AGESA Binary module header structure
+typedef struct _AMD_IMAGE_HEADER {
+  IN       unsigned int  Signature;                          ///< Binary Signature
+  IN       signed char   CreatorID[8];                       ///< 8 characters ID
+  IN       signed char   Version[12];                        ///< 12 characters version
+  IN       unsigned int  ModuleInfoOffset;                   ///< Offset of module
+  IN       unsigned int  EntryPointAddress;                  ///< Entry address
+  IN       unsigned int  ImageBase;                          ///< Image base
+  IN       unsigned int  RelocTableOffset;                   ///< Relocate Table offset
+  IN       unsigned int  ImageSize;                          ///< Size
+  IN       unsigned short  Checksum;                           ///< Checksum
+  IN       unsigned char   ImageType;                          ///< Type
+  IN       unsigned char   V_Reserved;                         ///< Reserved
+} AMD_IMAGE_HEADER;
+
+/// AGESA Binary module header structure
+typedef struct _AMD_MODULE_HEADER {
+  IN       unsigned int          ModuleHeaderSignature;      ///< Module signature
+  IN       signed char           ModuleIdentifier[8];        ///< 8 characters ID
+  IN       signed char           ModuleVersion[12];          ///< 12 characters version
+  IN       MODULE_ENTRY    ModuleDispatcherPtr;        ///< A pointer point to dispatcher
+  IN       struct _AMD_MODULE_HEADER  *NextBlockPtr;    ///< Next module header link
+} AMD_MODULE_HEADER;
+
+#define FUNC_0    0   // bit-placed for PCI address creation
+#define FUNC_1    1
+#define FUNC_2    2
+#define FUNC_3    3
+#define FUNC_4    4
+#define FUNC_5    5
+#define FUNC_6    6
+#define FUNC_7    7
+
+//   SBDFO - Segment Bus Device Function Offset
+//   31:28   Segment (4-bits)
+//   27:20   Bus     (8-bits)
+//   19:15   Device  (5-bits)
+//   14:12   Function (3-bits)
+//   11:00   Offset  (12-bits)
+
+#if 0
+#define MAKE_SBDFO(Seg, Bus, Dev, Fun, Off) ((((unsigned int) (Seg)) << 28) | (((unsigned int) (Bus)) << 20) | \
+                   (((unsigned int) (Dev)) << 15) | (((unsigned int) (Fun)) << 12) | ((unsigned int) (Off)))
+#endif
+#define ILLEGAL_SBDFO 0xFFFFFFFF
+
+/*
+/// CPUID data received registers format
+typedef struct _SB_CPUID_DATA {
+  IN OUT   unsigned int          EAX_Reg;                ///< CPUID instruction result in EAX
+  IN OUT   unsigned int          EBX_Reg;                ///< CPUID instruction result in EBX
+  IN OUT   unsigned int          ECX_Reg;                ///< CPUID instruction result in ECX
+  IN OUT   unsigned int          EDX_Reg;                ///< CPUID instruction result in EDX
+} SB_CPUID_DATA;
+*/
+
+#define WARM_RESET 1
+#define COLD_RESET 2      // Cold reset
+#define RESET_CPU  4      // Triggers a CPU reset
+
+/// HT frequency for external callbacks
+typedef enum {
+  HT_FREQUENCY_200M          = 0,                 ///< HT speed 200 for external callbacks
+  HT_FREQUENCY_400M          = 2,                 ///< HT speed 400 for external callbacks
+  HT_FREQUENCY_600M          = 4,                 ///< HT speed 600 for external callbacks
+  HT_FREQUENCY_800M          = 5,                 ///< HT speed 800 for external callbacks
+  HT_FREQUENCY_1000M         = 6,                 ///< HT speed 1000 for external callbacks
+  HT_FREQUENCY_1200M         = 7,                 ///< HT speed 1200 for external callbacks
+  HT_FREQUENCY_1400M         = 8,                 ///< HT speed 1400 for external callbacks
+  HT_FREQUENCY_1600M         = 9,                 ///< HT speed 1600 for external callbacks
+  HT_FREQUENCY_1800M         = 10,                ///< HT speed 1800 for external callbacks
+  HT_FREQUENCY_2000M         = 11,                ///< HT speed 2000 for external callbacks
+  HT_FREQUENCY_2200M         = 12,                ///< HT speed 2200 for external callbacks
+  HT_FREQUENCY_2400M         = 13,                ///< HT speed 2400 for external callbacks
+  HT_FREQUENCY_2600M         = 14,                ///< HT speed 2600 for external callbacks
+  HT_FREQUENCY_2800M         = 17,                ///< HT speed 2800 for external callbacks
+  HT_FREQUENCY_3000M         = 18,                ///< HT speed 3000 for external callbacks
+  HT_FREQUENCY_3200M         = 19                 ///< HT speed 3200 for external callbacks
+} HT_FREQUENCIES;
+
+#ifndef BIT0
+  #define BIT0        0x0000000000000001ull
+#endif
+#ifndef BIT1
+  #define BIT1        0x0000000000000002ull
+#endif
+#ifndef BIT2
+  #define BIT2        0x0000000000000004ull
+#endif
+#ifndef BIT3
+  #define BIT3        0x0000000000000008ull
+#endif
+#ifndef BIT4
+  #define BIT4        0x0000000000000010ull
+#endif
+#ifndef BIT5
+  #define BIT5        0x0000000000000020ull
+#endif
+#ifndef BIT6
+  #define BIT6        0x0000000000000040ull
+#endif
+#ifndef BIT7
+  #define BIT7        0x0000000000000080ull
+#endif
+#ifndef BIT8
+  #define BIT8        0x0000000000000100ull
+#endif
+#ifndef BIT9
+  #define BIT9        0x0000000000000200ull
+#endif
+#ifndef BIT10
+  #define BIT10       0x0000000000000400ull
+#endif
+#ifndef BIT11
+  #define BIT11       0x0000000000000800ull
+#endif
+#ifndef BIT12
+  #define BIT12       0x0000000000001000ull
+#endif
+#ifndef BIT13
+  #define BIT13       0x0000000000002000ull
+#endif
+#ifndef BIT14
+  #define BIT14       0x0000000000004000ull
+#endif
+#ifndef BIT15
+  #define BIT15       0x0000000000008000ull
+#endif
+#ifndef BIT16
+  #define BIT16       0x0000000000010000ull
+#endif
+#ifndef BIT17
+  #define BIT17       0x0000000000020000ull
+#endif
+#ifndef BIT18
+  #define BIT18       0x0000000000040000ull
+#endif
+#ifndef BIT19
+  #define BIT19       0x0000000000080000ull
+#endif
+#ifndef BIT20
+  #define BIT20       0x0000000000100000ull
+#endif
+#ifndef BIT21
+  #define BIT21       0x0000000000200000ull
+#endif
+#ifndef BIT22
+  #define BIT22       0x0000000000400000ull
+#endif
+#ifndef BIT23
+  #define BIT23       0x0000000000800000ull
+#endif
+#ifndef BIT24
+  #define BIT24       0x0000000001000000ull
+#endif
+#ifndef BIT25
+  #define BIT25       0x0000000002000000ull
+#endif
+#ifndef BIT26
+  #define BIT26       0x0000000004000000ull
+#endif
+#ifndef BIT27
+  #define BIT27       0x0000000008000000ull
+#endif
+#ifndef BIT28
+  #define BIT28       0x0000000010000000ull
+#endif
+#ifndef BIT29
+  #define BIT29       0x0000000020000000ull
+#endif
+#ifndef BIT30
+  #define BIT30       0x0000000040000000ull
+#endif
+#ifndef BIT31
+  #define BIT31       0x0000000080000000ull
+#endif
+#ifndef BIT32
+  #define BIT32       0x0000000100000000ull
+#endif
+#ifndef BIT33
+  #define BIT33       0x0000000200000000ull
+#endif
+#ifndef BIT34
+  #define BIT34       0x0000000400000000ull
+#endif
+#ifndef BIT35
+  #define BIT35       0x0000000800000000ull
+#endif
+#ifndef BIT36
+  #define BIT36       0x0000001000000000ull
+#endif
+#ifndef BIT37
+  #define BIT37       0x0000002000000000ull
+#endif
+#ifndef BIT38
+  #define BIT38       0x0000004000000000ull
+#endif
+#ifndef BIT39
+  #define BIT39       0x0000008000000000ull
+#endif
+#ifndef BIT40
+  #define BIT40       0x0000010000000000ull
+#endif
+#ifndef BIT41
+  #define BIT41       0x0000020000000000ull
+#endif
+#ifndef BIT42
+  #define BIT42       0x0000040000000000ull
+#endif
+#ifndef BIT43
+  #define BIT43       0x0000080000000000ull
+#endif
+#ifndef BIT44
+  #define BIT44       0x0000100000000000ull
+#endif
+#ifndef BIT45
+  #define BIT45       0x0000200000000000ull
+#endif
+#ifndef BIT46
+  #define BIT46       0x0000400000000000ull
+#endif
+#ifndef BIT47
+  #define BIT47       0x0000800000000000ull
+#endif
+#ifndef BIT48
+  #define BIT48       0x0001000000000000ull
+#endif
+#ifndef BIT49
+  #define BIT49       0x0002000000000000ull
+#endif
+#ifndef BIT50
+  #define BIT50       0x0004000000000000ull
+#endif
+#ifndef BIT51
+  #define BIT51       0x0008000000000000ull
+#endif
+#ifndef BIT52
+  #define BIT52       0x0010000000000000ull
+#endif
+#ifndef BIT53
+  #define BIT53       0x0020000000000000ull
+#endif
+#ifndef BIT54
+  #define BIT54       0x0040000000000000ull
+#endif
+#ifndef BIT55
+  #define BIT55       0x0080000000000000ull
+#endif
+#ifndef BIT56
+  #define BIT56       0x0100000000000000ull
+#endif
+#ifndef BIT57
+  #define BIT57       0x0200000000000000ull
+#endif
+#ifndef BIT58
+  #define BIT58       0x0400000000000000ull
+#endif
+#ifndef BIT59
+  #define BIT59       0x0800000000000000ull
+#endif
+#ifndef BIT60
+  #define BIT60       0x1000000000000000ull
+#endif
+#ifndef BIT61
+  #define BIT61       0x2000000000000000ull
+#endif
+#ifndef BIT62
+  #define BIT62       0x4000000000000000ull
+#endif
+#ifndef BIT63
+  #define BIT63       0x8000000000000000ull
+#endif
+#endif
diff --git a/src/southbridge/amd/cimx/sb900/AmdSbLib.h b/src/southbridge/amd/cimx/sb900/AmdSbLib.h
new file mode 100755
index 0000000000..a86f24b6fb
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/AmdSbLib.h
@@ -0,0 +1,175 @@
+/*
+ *****************************************************************************
+ *
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _AMD_SB_LIB_H_
+#define _AMD_SB_LIB_H_
+
+typedef signed char  *va_list;
+#ifndef _INTSIZEOF
+  #define _INTSIZEOF (n) ( (sizeof (n) + sizeof (UINTN) - 1) & ~(sizeof (UINTN) - 1) )
+#endif
+
+// Also support coding convention rules for var arg macros
+#ifndef va_start
+  #define va_start(ap, v)  ( ap = (va_list)&(v) + _INTSIZEOF (v) )
+#endif
+#define va_arg(ap, t)    ( *(t *) ((ap += _INTSIZEOF (t)) - _INTSIZEOF (t)) )
+#define va_end(ap)      ( ap = (va_list)0 )
+
+
+#pragma pack (push, 1)
+
+#define IMAGE_ALIGN          32*1024
+#define NUM_IMAGE_LOCATION   32
+
+//Entry Point Call
+typedef void (*CIM_IMAGE_ENTRY) (void* pConfig);
+
+//Hook Call
+
+typedef struct _CIMFILEHEADER
+{
+  unsigned int  AMDLogo;
+  unsigned long long  CreatorID;
+  unsigned int  Version1;
+  unsigned int  Version2;
+  unsigned int  Version3;
+  unsigned int  ModuleInfoOffset;
+  unsigned int  EntryPoint;
+  unsigned int  ImageBase;
+  unsigned int  RelocTableOffset;
+  unsigned int  ImageSize;
+  unsigned short  CheckSum;
+  unsigned char ImageType;
+  unsigned char Reserved2;
+} CIMFILEHEADER;
+
+#ifndef BIT0
+  #define BIT0 (1 << 0)
+#endif
+#ifndef BIT1
+  #define BIT1 (1 << 1)
+#endif
+#ifndef BIT2
+  #define BIT2 (1 << 2)
+#endif
+#ifndef BIT3
+  #define BIT3 (1 << 3)
+#endif
+#ifndef BIT4
+  #define BIT4 (1 << 4)
+#endif
+#ifndef BIT5
+  #define BIT5 (1 << 5)
+#endif
+#ifndef BIT6
+  #define BIT6 (1 << 6)
+#endif
+#ifndef BIT7
+  #define BIT7 (1 << 7)
+#endif
+#ifndef BIT8
+  #define BIT8 (1 << 8)
+#endif
+#ifndef BIT9
+  #define BIT9 (1 << 9)
+#endif
+#ifndef BIT10
+  #define BIT10 (1 << 10)
+#endif
+#ifndef BIT11
+  #define BIT11 (1 << 11)
+#endif
+#ifndef BIT12
+  #define BIT12 (1 << 12)
+#endif
+#ifndef BIT13
+  #define BIT13 (1 << 13)
+#endif
+#ifndef BIT14
+  #define BIT14 (1 << 14)
+#endif
+#ifndef BIT15
+  #define BIT15 (1 << 15)
+#endif
+#ifndef BIT16
+  #define BIT16 (1 << 16)
+#endif
+#ifndef BIT17
+  #define BIT17 (1 << 17)
+#endif
+#ifndef BIT18
+  #define BIT18 (1 << 18)
+#endif
+#ifndef BIT19
+  #define BIT19 (1 << 19)
+#endif
+#ifndef BIT20
+  #define BIT20 (1 << 20)
+#endif
+#ifndef BIT21
+  #define BIT21 (1 << 21)
+#endif
+#ifndef BIT22
+  #define BIT22 (1 << 22)
+#endif
+#ifndef BIT23
+  #define BIT23 (1 << 23)
+#endif
+#ifndef  BIT24
+  #define BIT24 (1 << 24)
+#endif
+#ifndef BIT25
+  #define BIT25 (1 << 25)
+#endif
+#ifndef BIT26
+  #define BIT26 (1 << 26)
+#endif
+#ifndef BIT27
+  #define BIT27 (1 << 27)
+#endif
+#ifndef BIT28
+  #define BIT28 (1 << 28)
+#endif
+#ifndef BIT29
+  #define BIT29 (1 << 29)
+#endif
+#ifndef BIT30
+  #define BIT30 (1 << 30)
+#endif
+#ifndef BIT31
+  #define BIT31 (1 << 31)
+#endif
+
+#pragma pack (pop)
+
+typedef enum
+{
+  AccWidthUint8 = 0,
+  AccWidthUint16,
+  AccWidthUint32,
+} ACC_WIDTH;
+
+#define S3_SAVE  0x80
+
+#endif
diff --git a/src/southbridge/amd/cimx/sb900/Kconfig b/src/southbridge/amd/cimx/sb900/Kconfig
new file mode 100755
index 0000000000..46f635e755
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/Kconfig
@@ -0,0 +1,54 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2011 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_CIMX_SB900
+	bool
+	select IOAPIC
+
+if SOUTHBRIDGE_AMD_CIMX_SB900
+config SATA_CONTROLLER_MODE
+	hex
+	default 0x0
+	help
+		0x0 = Native IDE mode.
+		0x1 = RAID mode.
+		0x2 = AHCI mode.
+		0x3 = Legacy IDE mode.
+		0x4 = IDE->AHCI mode.
+		0x5 = AHCI mode as 7804 ID (AMD driver).
+		0x6 = IDE->AHCI mode as 7804 ID (AMD driver).
+
+config PCIB_ENABLE
+	bool
+	default n
+	help
+		n = Disable PCI Bridge Device 14 Function 4.
+		y = Enable PCI Bridge Device 14 Function 4.
+
+config ACPI_SCI_IRQ
+	hex
+	default 0x9
+	help
+		Set SCI IRQ to 9.
+
+config BOOTBLOCK_SOUTHBRIDGE_INIT
+        string
+        default "southbridge/amd/cimx/sb900/bootblock.c"
+endif #SOUTHBRIDGE_AMD_CIMX_SB900
+
diff --git a/src/southbridge/amd/cimx/sb900/Makefile.inc b/src/southbridge/amd/cimx/sb900/Makefile.inc
new file mode 100755
index 0000000000..17618f9747
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/Makefile.inc
@@ -0,0 +1,33 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2011 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
+#
+
+subdirs-$(CONFIG_AMD_CIMX_SB900) += ../../../../../src/vendorcode/amd/cimx/sb900
+
+# SB900 Platform Files
+
+romstage-y += early.c
+romstage-y += smbus.c
+
+ramstage-y += late.c
+ramstage-y += early.c
+
+driver-y   += smbus.c
+driver-y   += lpc.c
+
+
diff --git a/src/southbridge/amd/cimx/sb900/SbEarly.h b/src/southbridge/amd/cimx/sb900/SbEarly.h
new file mode 100755
index 0000000000..5e2b05cfdc
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/SbEarly.h
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _CIMX_SB_EARLY_H_
+#define _CIMX_SB_EARLY_H_
+
+#define PM_INDEX	0xcd6
+#define PM_DATA		0xcd7
+
+#define SB900_ACPI_IO_BASE 0x800
+
+#define ACPI_PM_EVT_BLK		(SB900_ACPI_IO_BASE + 0x00) /* 4 bytes */
+#define ACPI_PM1_CNT_BLK	(SB900_ACPI_IO_BASE + 0x04) /* 2 bytes */
+#define ACPI_PMA_CNT_BLK	(SB900_ACPI_IO_BASE + 0x0F) /* 1 byte */
+#define ACPI_PM_TMR_BLK		(SB900_ACPI_IO_BASE + 0x08) /* 4 bytes */
+#define ACPI_GPE0_BLK		(SB900_ACPI_IO_BASE + 0x20) /* 8 bytes */
+#define ACPI_CPU_CONTROL	(SB900_ACPI_IO_BASE + 0x10) /* 6 bytes */
+
+#define REV_SB900_A11	0x11
+#define REV_SB900_A12	0x12
+
+/**
+ * @brief Get SouthBridge device number, called by finalize_node_setup()
+ * @param[in] bus target bus number
+ * @return southbridge device number
+ */
+u32 get_sbdn(u32 bus);
+
+/**
+ * South Bridge CIMx romstage entry, sbPowerOnInit entry point wrapper.
+ */
+void sb_poweron_init(void);
+void sb_before_pci_init(void);
+
+void sb_After_Pci_Init (void);
+void sb_Mid_Post_Init (void);
+void sb_Late_Post (void);
+
+#endif
diff --git a/src/southbridge/amd/cimx/sb900/SbPlatform.h b/src/southbridge/amd/cimx/sb900/SbPlatform.h
new file mode 100755
index 0000000000..0a2e65a735
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/SbPlatform.h
@@ -0,0 +1,156 @@
+/*
+ *****************************************************************************
+ *
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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  _AMD_SBPLATFORM_H_
+#define  _AMD_SBPLATFORM_H_
+
+//#include "cbtypes.h"
+#ifdef NULL
+  #undef NULL
+#endif
+#define NULL            0
+
+typedef unsigned long long PLACEHOLDER;
+
+#ifndef SBOEM_ACPI_RESTORE_SWSMI
+  #define SBOEM_BEFORE_PCI_RESTORE_SWSMI    0xD3
+  #define SBOEM_AFTER_PCI_RESTORE_SWSMI     0xD4
+#endif
+
+#ifndef _AMD_NB_CIM_X_PROTOCOL_H_
+
+/*
+/// Extended PCI Address
+typedef struct _EXT_PCI_ADDR {
+  UINT32                  Reg :16; ///< / PCI Register
+  UINT32                  Func:3;  ///< / PCI Function
+  UINT32                  Dev :5;  ///< / PCI Device
+  UINT32                  Bus :8;  ///< / PCI Address
+} EXT_PCI_ADDR;
+
+/// PCI Address
+typedef union _PCI_ADDR {
+  UINT32                  ADDR; ///< / 32 bit Address
+  EXT_PCI_ADDR            Addr; ///< / Extended PCI Address
+} PCI_ADDR;
+*/
+#endif
+#define FIXUP_PTR(ptr)  ptr
+
+#include "AmdSbLib.h"
+#include "Amd.h"
+#include "Hudson-2.h"
+#include "SbType.h"
+#include "AcpiLib.h"
+#include "SbDef.h"
+#include "AmdSbLib.h"
+#include "SbSubFun.h"
+#include "Oem.h"
+#include "AMD.h"
+#include "SbBiosRamUsage.h"
+#include "EcFan.h"
+
+//------------------------------------------------------------------------------------------------------------------------//
+/**
+ * SB_CIMx_PARAMETER                0                1                   2            Defult Value When CIMx Take over
+ *  SpreadSpectrum         CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ * SpreadSpectrumType      CIMx take over   User (Setup Option) User (Setup Option)               Normal
+ *     HpetTimer           CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *     HpetMsiDis          CIMx take over   User (Setup Option) User (Setup Option)               Enable (0x00)
+ *      IrConfig           CIMx take over   User (Setup Option) User (Setup Option)               Disable (0x00)
+ * SpiFastReadEnable       CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ * SpiFastReadSpeed        CIMx take over   User (Setup Option) User (Setup Option)               Disable (NULL)
+ *     NbSbGen2            CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ * AlinkPhyPllPowerDown    CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ * ResetCpuOnSyncFlood     CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *     GppGen2             CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  GppMemWrImprove        CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *    GppPortAspm          CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  GppLaneReversal        CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  GppPhyPllPowerDown     CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *  UsbPhyPowerDown        CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  SBGecDebugBus          CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *     SBGecPwr            CIMx take over   User (Setup Option) User (Setup Option)               Nerver Power down (0x11)
+ *   SataSetMaxGen2        CIMx take over   User (Setup Option) User (Setup Option)               Max Gen3 (0x00)
+ *   SataClkMode           CIMx take over   User (Setup Option) User (Setup Option)               0x90   int. 100Mhz
+ *  SataAggrLinkPmCap      CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *  SataPortMultCap        CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *   SataPscCap            CIMx take over   User (Setup Option) User (Setup Option)               Enable (0x00)
+ *   SataSscCap            CIMx take over   User (Setup Option) User (Setup Option)               Enable (0x00)
+ * SataFisBasedSwitching   CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *   SataCccSupport        CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *   SataMsiCapability     CIMx take over   User (Setup Option) User (Setup Option)               Enable
+ *   SataClkAutoOff        CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *    AcDcMsg              CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *   TimerTickTrack        CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  ClockInterruptTag      CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  OhciTrafficHanding     CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  EhciTrafficHanding     CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *  FusionMsgCMultiCore    CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ *   FusionMsgCStage       CIMx take over   User (Setup Option) User (Setup Option)               Disable
+ */
+#define SB_CIMx_PARAMETER  0x02
+
+// Generic
+#define cimSpreadSpectrumDefault        TRUE
+#define cimSpreadSpectrumTypeDefault	0x00      // Normal
+#define cimHpetTimerDefault             TRUE
+#define cimHpetMsiDisDefault            FALSE     // Enable
+#define cimIrConfigDefault              0x00      // Disable
+#define cimSpiFastReadEnableDefault     0x00      // Disable
+#define cimSpiFastReadSpeedDefault      0x00      // NULL
+// GPP/AB Controller
+#define cimNbSbGen2Default              TRUE
+#define cimAlinkPhyPllPowerDownDefault  TRUE
+#define cimResetCpuOnSyncFloodDefault   TRUE
+#define cimGppGen2Default               FALSE
+#define cimGppMemWrImproveDefault       TRUE
+#define cimGppPortAspmDefault           FALSE
+#define cimGppLaneReversalDefault       FALSE
+#define cimGppPhyPllPowerDownDefault    TRUE
+// USB Controller
+#define cimUsbPhyPowerDownDefault       FALSE
+// GEC Controller
+#define cimSBGecDebugBusDefault         FALSE
+#define cimSBGecPwrDefault              0x03
+// Sata Controller
+#define cimSataSetMaxGen2Default        0x00
+#define cimSATARefClkSelDefault         0x10
+#define cimSATARefDivSelDefault         0x80
+#define cimSataAggrLinkPmCapDefault     TRUE
+#define cimSataPortMultCapDefault       TRUE
+#define cimSataPscCapDefault            0x00      // Enable
+#define cimSataSscCapDefault            0x00      // Enable
+#define cimSataFisBasedSwitchingDefault FALSE
+#define cimSataCccSupportDefault        FALSE
+#define cimSataClkAutoOffDefault        FALSE
+#define cimNativepciesupportDefault     FALSE
+// Fusion Related
+#define cimAcDcMsgDefault               FALSE
+#define cimTimerTickTrackDefault        FALSE
+#define cimClockInterruptTagDefault     FALSE
+#define cimOhciTrafficHandingDefault    FALSE
+#define cimEhciTrafficHandingDefault    FALSE
+#define cimFusionMsgCMultiCoreDefault   FALSE
+#define cimFusionMsgCStageDefault       FALSE
+#endif // _AMD_SBPLATFORM_H_
diff --git a/src/southbridge/amd/cimx/sb900/bootblock.c b/src/southbridge/amd/cimx/sb900/bootblock.c
new file mode 100755
index 0000000000..e04cec0e04
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/bootblock.c
@@ -0,0 +1,97 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <arch/io.h>
+#include <arch/romcc_io.h>
+
+
+#if CONFIG_CONSOLE_POST == 1
+
+/* Data */
+#define UART_RBR 0x00
+#define UART_TBR 0x00
+
+/* Control */
+#define UART_IER 0x01
+#define UART_IIR 0x02
+#define UART_FCR 0x02
+#define UART_LCR 0x03
+#define UART_MCR 0x04
+#define UART_DLL 0x00
+#define UART_DLM 0x01
+
+/* Status */
+#define UART_LSR 0x05
+#define UART_MSR 0x06
+#define UART_SCR 0x07
+
+#ifndef CONFIG_TTYS0_DIV
+#if ((115200%CONFIG_TTYS0_BAUD) != 0)
+#error Bad ttys0 baud rate
+#endif
+#define CONFIG_TTYS0_DIV	(115200/CONFIG_TTYS0_BAUD)
+#endif // CONFIG_TTYS0_DIV
+
+#define UART_LCS	CONFIG_TTYS0_LCS
+
+#endif // CONFIG_CONSOLE_POST == 1
+
+
+static void sb900_enable_rom(void)
+{
+  u32 word;
+  u32 dword;
+  device_t dev;
+
+  dev = PCI_DEV(0, 0x14, 0x03);
+  /* SB900 LPC Bridge 0:20:3:44h.
+   * BIT6: Port Enable for serial port 0x3f8-0x3ff
+   * BIT29: Port Enable for KBC port 0x60 and 0x64
+   * BIT30: Port Enable for ACPI Micro-Controller port 0x66 and 0x62
+   */
+  dword = pci_io_read_config32(dev, 0x44);
+  //dword |= (1<<6) | (1<<29) | (1<<30) ;
+  /*Turn on all of LPC IO Port decode enable */
+  dword = 0xffffffff;
+  pci_io_write_config32(dev, 0x44, dword);
+
+  /* SB900 LPC Bridge 0:20:3:48h.
+   * BIT0: Port Enable for SuperIO 0x2E-0x2F 
+   * BIT1: Port Enable for SuperIO 0x4E-0x4F 
+   * BIT4: Port Enable for LPC ROM Address Arrage2 (0x68-0x6C)
+   * BIT6: Port Enable for RTC IO 0x70-0x73
+   * BIT21: Port Enable for Port 0x80
+   */
+  dword = pci_io_read_config32(dev, 0x48);
+  dword |= (1<<0) | (1<<1) | (1<<4) | (1<<6) | (1<<21) ;
+  pci_io_write_config32(dev, 0x48, dword);
+
+  /* Enable 4MB rom access at 0xFFE00000 - 0xFFFFFFFF */
+  /* Set the 4MB enable bits */
+  word = pci_io_read_config16(dev, 0x6c);
+  word = 0xFFC0; 
+  pci_io_write_config16(dev, 0x6c, word);
+}
+
+static void bootblock_southbridge_init(void)
+{
+  /* Setup the rom access for 2M */
+  sb900_enable_rom();
+}
diff --git a/src/southbridge/amd/cimx/sb900/cbtypes.h b/src/southbridge/amd/cimx/sb900/cbtypes.h
new file mode 100755
index 0000000000..4c97a33ed6
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/cbtypes.h
@@ -0,0 +1,59 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _CBTYPES_H_
+#define _CBTYPES_H_
+
+//#include <stdint.h>
+
+typedef signed long long __int64;
+typedef void VOID;
+typedef unsigned int UINTN;
+typedef signed char CHAR8;
+typedef unsigned char UINT8;
+typedef unsigned short UINT16;
+typedef unsigned int UINT32;
+typedef unsigned long long UINT64;
+typedef unsigned char BOOLEAN;
+
+#define DMSG_SB_TRACE   0x02
+#define TRACE(Arguments)
+
+#ifndef TRUE
+#define TRUE  1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef VOLATILE
+#define VOLATILE volatile
+#endif
+#ifndef CONST
+#define CONST const
+#endif
+
+#ifndef IN
+#define IN
+#endif
+#ifndef OUT
+#define OUT
+#endif
+
+#endif
diff --git a/src/southbridge/amd/cimx/sb900/chip.h b/src/southbridge/amd/cimx/sb900/chip.h
new file mode 100755
index 0000000000..96afc42736
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/chip.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _CIMX_SB900_CHIP_H_
+#define _CIMX_SB900_CHIP_H_
+
+extern struct chip_operations southbridge_amd_cimx_sb900_ops;
+
+/*
+ * configuration set in mainboard/devicetree.cb
+ *  boot_switch_sata_ide:
+ *   0 -set SATA as primary, PATA(IDE) as secondary.
+ *   1 -set PATA(IDE) as primary, SATA as secondary. if you want to boot from IDE,
+ *  gpp_configuration - The configuration of General Purpose Port A/B/C/D
+ *   0(GPP_CFGMODE_X4000) -PortA Lanes[3:0]
+ *   2(GPP_CFGMODE_X2200) -PortA Lanes[1:0], PortB Lanes[3:2]
+ *   3(GPP_CFGMODE_X2110) -PortA Lanes[1:0], PortB Lane2, PortC Lane3
+ *   4(GPP_CFGMODE_X1111) -PortA Lanes0, PortB Lane1, PortC Lane2, PortD Lane3
+ */
+struct southbridge_amd_cimx_sb900_config
+{
+	u32 boot_switch_sata_ide : 1;
+	u8  gpp_configuration;
+};
+
+#endif /* _CIMX_SB900_CHIP_H_ */
diff --git a/src/southbridge/amd/cimx/sb900/chip_name.c b/src/southbridge/amd/cimx/sb900/chip_name.c
new file mode 100755
index 0000000000..dd875dcfd6
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/chip_name.c
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <device/device.h>
+#include "chip.h"
+
+struct chip_operations southbridge_amd_cimx_sb900_ops = {
+	CHIP_NAME("AMD South Bridge  SB900")
+};
diff --git a/src/southbridge/amd/cimx/sb900/early.c b/src/southbridge/amd/cimx/sb900/early.c
new file mode 100755
index 0000000000..e09eb29958
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/early.c
@@ -0,0 +1,167 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <config.h>
+#include <stdint.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>		/* inl, outl */
+#include <arch/romcc_io.h>	/* device_t */
+#include "SbPlatform.h"
+#include "SbEarly.h"
+#include "cfg.h"		/*sb900_cimx_config*/
+#include <console/console.h>
+#include <console/loglevel.h>
+#include "smbus.h"
+
+
+/**
+ * @brief Get SouthBridge device number
+ * @param[in] bus target bus number
+ * @return southbridge device number
+ */
+u32 get_sbdn(u32 bus)
+{
+	device_t dev;
+
+    printk(BIOS_INFO, "SB900 - Early.c - get_sbdn - Start.\n");
+	//dev = PCI_DEV(bus, 0x14, 0);
+	dev = pci_locate_device_on_bus(
+			PCI_ID(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_ATI_SB900_SM),
+			bus);
+
+    printk(BIOS_INFO, "SB900 - Early.c - get_sbdn - End.\n");
+	return (dev >> 15) & 0x1f;
+}
+
+
+/**
+ * @brief South Bridge CIMx romstage entry,
+ *        wrapper of sbPowerOnInit entry point.
+ */
+void sb_poweron_init(void)
+{
+	AMDSBCFG sb_early_cfg;
+	u8 data;
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_poweron_init - Start.\n");
+
+	//Enable/Disable PCI Bridge Device 14 Function 4.
+	outb(0xEA, 0xCD6);
+	data = inb(0xCD7);
+	data &= !BIT0;
+	if(!CONFIG_PCIB_ENABLE) {
+		data |= BIT0;
+	}
+	outb(data, 0xCD7);
+
+	SbPowerOnInit_Config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbPowerOnInit(&sb_early_cfg);
+    printk(BIOS_INFO, "SB900 - Early.c - sb_poweron_init - End.\n");
+}
+
+/**
+ * @brief South Bridge CIMx romstage entry,
+ *        wrapper of sbPowerOnInit entry point.
+ */
+void sb_before_pci_init(void)
+{
+	AMDSBCFG sb_early_cfg;
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_before_pci_init - Start.\n");
+	sb900_cimx_config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbBeforePciInit(&sb_early_cfg);
+    printk(BIOS_INFO, "SB900 - Early.c - sb_before_pci_init - End.\n");
+}
+
+void sb_After_Pci_Init(void)
+{
+	AMDSBCFG sb_early_cfg;
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_After_Pci_Init - Start.\n");
+	sb900_cimx_config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbAfterPciInit(&sb_early_cfg);
+    printk(BIOS_INFO, "SB900 - Early.c - sb_After_Pci_Init - End.\n");
+}
+
+void sb_Mid_Post_Init(void)
+{
+	AMDSBCFG sb_early_cfg;
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_Mid_Post_Init - Start.\n");
+	sb900_cimx_config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbMidPostInit(&sb_early_cfg);
+    printk(BIOS_INFO, "SB900 - Early.c - sb_Mid_Post_Init - End.\n");
+}
+
+void sb_Late_Post(void)
+{
+	AMDSBCFG sb_early_cfg;
+	u8 data;
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_Late_Post - Start.\n");
+	sb900_cimx_config(&sb_early_cfg);
+	//sb_early_cfg.StdHeader.Func = SB_POWERON_INIT;
+	//AmdSbDispatcher(&sb_early_cfg);
+	//TODO
+	//AMD_IMAGE_HEADER was missing, when using AmdSbDispatcher,
+	// VerifyImage() will fail, LocateImage() take minitues to find the image.
+	sbLatePost(&sb_early_cfg);
+	
+	//Set ACPI SCI IRQ to 0x9.
+	data = CONFIG_ACPI_SCI_IRQ;
+	outb(0x10, 0xC00);
+	outb(data, 0xC01);
+	outb(0x90, 0xC00);
+	outb(data, 0xC01);
+
+	if (data > 0x7) {
+		data = inb(0x4D1);
+		data |= (1 << (CONFIG_ACPI_SCI_IRQ - 8));
+		outb(data, 0x4D1);
+	} else {
+		data = inb(0x4D0);
+		data |= (1 << (CONFIG_ACPI_SCI_IRQ));
+		outb(data, 0x4D0);
+	}
+
+    printk(BIOS_INFO, "SB900 - Early.c - sb_Late_Post - End.\n");
+}
+
+
diff --git a/src/southbridge/amd/cimx/sb900/late.c b/src/southbridge/amd/cimx/sb900/late.c
new file mode 100755
index 0000000000..eb17a33b6d
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/late.c
@@ -0,0 +1,477 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <device/device.h>	/* device_t */
+#include <device/pci.h>		/* device_operations */
+#include <device/pci_ids.h>
+#include <device/smbus.h>	/* smbus_bus_operations */
+#include <console/console.h>	/* printk */
+#include "lpc.h"		/* lpc_read_resources */
+#include "SbPlatform.h" 	/* Platfrom Specific Definitions */
+#include "cfg.h"		/* sb900 Cimx configuration */
+#include "chip.h" 		/* struct southbridge_amd_cimx_sb900_config */
+
+
+/*implement in mainboard.c*/
+//void set_pcie_assert(void);
+//void set_pcie_deassert(void);
+void set_pcie_reset(void);
+void set_pcie_dereset(void);
+
+
+#ifndef _RAMSTAGE_
+#define _RAMSTAGE_
+#endif
+static AMDSBCFG sb_late_cfg; //global, init in sb900_cimx_config
+static AMDSBCFG *sb_config = &sb_late_cfg;
+
+
+/**
+ * @brief Entry point of Southbridge CIMx callout
+ *
+ * prototype UINT32 (*SBCIM_HOOK_ENTRY)(UINT32 Param1, UINT32 Param2, void* pConfig)
+ *
+ * @param[in] func      Southbridge CIMx Function ID.
+ * @param[in] data      Southbridge Input Data.
+ * @param[in] sb_config Southbridge configuration structure pointer.
+ *
+ */
+u32 sb900_callout_entry(u32 func, u32 data, void* config)
+{
+	u32 ret = 0;
+
+	printk(BIOS_DEBUG, "SB900 - Late.c - sb900_callout_entry - Start.\n");
+	switch (func) {
+	case CB_SBGPP_RESET_ASSERT:
+		//set_pcie_assert();
+//-		set_pcie_reset();
+		break;
+
+	case CB_SBGPP_RESET_DEASSERT:
+		//set_pcie_deassert();
+//-		set_pcie_dereset();
+		break;
+
+//-	case IMC_FIRMWARE_FAIL:
+//-		break;
+
+	default:
+		break;
+	}
+
+	printk(BIOS_DEBUG, "SB900 - Late.c - sb900_callout_entry - End.\n");
+	return ret;
+}
+
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = 0,
+};
+
+static void lpc_enable_resources(device_t dev)
+{
+
+	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_enable_resources - Start.\n");
+	pci_dev_enable_resources(dev);
+	//lpc_enable_childrens_resources(dev);
+	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_enable_resources - End.\n");
+}
+
+static void lpc_init(device_t dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_init - Start.\n");
+	/* SB Configure HPET base and enable bit */
+//-	hpetInit(sb_config, &(sb_config->BuildParameters));
+	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_init - End.\n");
+}
+
+static struct device_operations lpc_ops = {
+        .read_resources = lpc_read_resources,
+        .set_resources = lpc_set_resources,
+        .enable_resources = lpc_enable_resources,
+        .init = lpc_init,
+        .scan_bus = scan_static_bus,
+        .ops_pci = &lops_pci,
+};
+
+static const struct pci_driver lpc_driver __pci_driver = {
+        .ops = &lpc_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_LPC,
+};
+
+
+static void sata_enable_resources(struct device *dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - sata_enable_resources - Start.\n");
+//-	sataInitAfterPciEnum(sb_config);
+	pci_dev_enable_resources(dev);
+	printk(BIOS_DEBUG, "SB900 - Late.c - sata_enable_resources - End.\n");
+}
+
+static void sata_init(struct device *dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - sata_init - Start.\n");
+	sb_config->StdHeader.Func = SB_MID_POST_INIT;
+//-	AmdSbDispatcher(sb_config); //sataInitMidPost only
+//-	commonInitLateBoot(sb_config);
+//-	sataInitLatePost(sb_config);
+	printk(BIOS_DEBUG, "SB900 - Late.c - sata_init - End.\n");
+}
+
+static struct device_operations sata_ops = {
+	.read_resources = pci_dev_read_resources,
+	.set_resources = pci_dev_set_resources,
+	.enable_resources = sata_enable_resources, //pci_dev_enable_resources,
+	.init = sata_init,
+	.scan_bus = 0,
+	.ops_pci = &lops_pci,
+};
+
+static const struct pci_driver sata_driver __pci_driver = {
+	.ops = &sata_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+#if (CONFIG_SATA_CONTROLLER_MODE == 0x0 || CONFIG_SATA_CONTROLLER_MODE == 0x3)
+	.device = PCI_DEVICE_ID_ATI_SB900_SATA,	//SATA IDE Mode
+#endif
+#if (CONFIG_SATA_CONTROLLER_MODE == 0x2 || CONFIG_SATA_CONTROLLER_MODE == 0x4)
+	.device = PCI_DEVICE_ID_ATI_SB900_SATA_AHCI,	//SATA AHCI Mode
+#endif
+#if (CONFIG_SATA_CONTROLLER_MODE == 0x5 || CONFIG_SATA_CONTROLLER_MODE == 0x6)
+	.device = PCI_DEVICE_ID_ATI_SB900_SATA_AMDAHCI,	//SATA AMDAHCI Mode
+#endif
+#if (CONFIG_SATA_CONTROLLER_MODE == 0x1 && INCHIP_SATA_FORCE_RAID5 == 0x0)
+	.device = PCI_DEVICE_ID_ATI_SB900_SATA_RAID5,	//SATA RAID5 Mode
+#endif
+#if (CONFIG_SATA_CONTROLLER_MODE == 0x1 && INCHIP_SATA_FORCE_RAID5 == 0x1)
+	.device = PCI_DEVICE_ID_ATI_SB900_SATA_RAID,	//SATA RAID Mode
+#endif
+};
+
+
+#if CONFIG_USBDEBUG
+static void usb_set_resources(struct device *dev)
+{
+	struct resource *res;
+	u32 base;
+	u32 old_debug;
+
+	printk(BIOS_DEBUG, "SB900 - Late.c - usb_set_resources - Start.\n");
+	old_debug = get_ehci_debug();
+	set_ehci_debug(0);
+
+	pci_dev_set_resources(dev);
+
+	res = find_resource(dev, 0x10);
+	set_ehci_debug(old_debug);
+	if (!res)
+		return;
+	base = res->base;
+	set_ehci_base(base);
+	report_resource_stored(dev, res, "");
+	printk(BIOS_DEBUG, "SB900 - Late.c - usb_set_resources - End.\n");
+}
+#endif
+
+static void usb_init(struct device *dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - usb_init - Start.\n");
+//-	usbInitAfterPciInit(sb_config);
+//-	commonInitLateBoot(sb_config);
+	printk(BIOS_DEBUG, "SB900 - Late.c - usb_init - End.\n");
+}
+
+static struct device_operations usb_ops = {
+	.read_resources = pci_dev_read_resources,
+#if CONFIG_USBDEBUG
+	.set_resources = usb_set_resources,
+#else
+	.set_resources = pci_dev_set_resources,
+#endif
+	.enable_resources = pci_dev_enable_resources,
+	.init = usb_init,
+	.scan_bus = 0,
+	.ops_pci = &lops_pci,
+};
+
+/*
+ * The pci id of usb ctrl 0 and 1 are the same.
+ */
+static const struct pci_driver usb_xhci123_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_ATI_SB900_USB_16_0, /* XHCI-USB1, XHCI-USB2 */
+};
+
+static const struct pci_driver usb_ohci123_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_ATI_SB900_USB_18_0, /* OHCI-USB1, OHCI-USB2, OHCI-USB3 */
+};
+
+static const struct pci_driver usb_ehci123_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_ATI_SB900_USB_18_2, /* EHCI-USB1, EHCI-USB2, EHCI-USB3 */
+};
+
+static const struct pci_driver usb_ohci4_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_ATI_SB900_USB_20_5, /* OHCI-USB4 */
+};
+
+
+static void azalia_init(struct device *dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - azalia_init - Start.\n");
+//-	azaliaInitAfterPciEnum(sb_config); //Detect and configure High Definition Audio
+	printk(BIOS_DEBUG, "SB900 - Late.c - azalia_init - End.\n");
+}
+
+static struct device_operations azalia_ops = {
+        .read_resources = pci_dev_read_resources,
+        .set_resources = pci_dev_set_resources,
+        .enable_resources = pci_dev_enable_resources,
+        .init = azalia_init,
+        .scan_bus = 0,
+        .ops_pci = &lops_pci,
+};
+
+static const struct pci_driver azalia_driver __pci_driver = {
+        .ops = &azalia_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_HDA,
+};
+
+
+static void gec_init(struct device *dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - gec_init - Start.\n");
+//-	gecInitAfterPciEnum(sb_config);
+//-	gecInitLatePost(sb_config);
+	printk(BIOS_DEBUG, "SB900 - Late.c - gec_init - End.\n");
+}
+
+static struct device_operations gec_ops = {
+        .read_resources = pci_dev_read_resources,
+        .set_resources = pci_dev_set_resources,
+        .enable_resources = pci_dev_enable_resources,
+        .init = gec_init,
+        .scan_bus = 0,
+        .ops_pci = &lops_pci,
+};
+
+static const struct pci_driver gec_driver __pci_driver = {
+        .ops = &gec_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_GEC,
+};
+
+
+static void pcie_init(device_t dev)
+{
+	printk(BIOS_DEBUG, "SB900 - Late.c - pcie_init - Start.\n");
+//-	sbPcieGppLateInit(sb_config);
+	printk(BIOS_DEBUG, "SB900 - Late.c - pcie_init - End.\n");
+}
+
+static struct device_operations pci_ops = {
+        .read_resources = pci_bus_read_resources,
+        .set_resources = pci_dev_set_resources,
+        .enable_resources = pci_bus_enable_resources,
+        .init = pcie_init,
+        .scan_bus = pci_scan_bridge,
+        .reset_bus = pci_bus_reset,
+        .ops_pci = &lops_pci,
+};
+
+static const struct pci_driver pci_driver __pci_driver = {
+        .ops = &pci_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_PCI,
+};
+
+
+struct device_operations bridge_ops = {
+	.read_resources   = pci_bus_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_bus_enable_resources,
+	.init             = pcie_init,
+	.scan_bus         = pci_scan_bridge,
+	.enable           = 0,
+	.reset_bus        = pci_bus_reset,
+	.ops_pci          = &lops_pci,
+};
+
+/* 0:15:0 PCIe PortA */
+static const struct pci_driver PORTA_driver __pci_driver = {
+        .ops = &bridge_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_PCIEA,
+};
+
+/* 0:15:1 PCIe PortB */
+static const struct pci_driver PORTB_driver __pci_driver = {
+        .ops = &bridge_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_PCIEB,
+};
+
+/* 0:15:2 PCIe PortC */
+static const struct pci_driver PORTC_driver __pci_driver = {
+        .ops = &bridge_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_PCIEC,
+};
+
+/* 0:15:3 PCIe PortD */
+static const struct pci_driver PORTD_driver __pci_driver = {
+        .ops = &bridge_ops,
+        .vendor = PCI_VENDOR_ID_AMD,
+        .device = PCI_DEVICE_ID_ATI_SB900_PCIED,
+};
+
+
+/**
+ * @brief SB Cimx entry point sbBeforePciInit wrapper
+ */
+static void sb900_enable(device_t dev)
+{
+	u8 gpp_port = 0;
+	struct southbridge_amd_cimx_sb900_config *sb_chip =
+		(struct southbridge_amd_cimx_sb900_config *)(dev->chip_info);
+
+	sb900_cimx_config(sb_config);
+	printk(BIOS_DEBUG, "sb900_enable() ");
+
+	/* Config SouthBridge SMBUS/ACPI/IDE/LPC/PCIB.*/
+//-	commonInitEarlyBoot(sb_config);
+//-	commonInitEarlyPost(sb_config);
+
+	switch (dev->path.pci.devfn) {
+	case (0x10 << 3) | 0: /* 0:10:0 XHCI-USB */
+//-		usbInitBeforePciEnum(sb_config);  // USB POST TIME Only
+		break;
+
+	case (0x11 << 3) | 0: /* 0:11.0  SATA */
+		if (dev->enabled) {
+  			sb_config->SATAMODE.SataMode.SataController = ENABLED;
+			if (1 == sb_chip->boot_switch_sata_ide)
+				sb_config->SATAMODE.SataMode.SataIdeCombMdPriSecOpt = 0; //0 -IDE as primary.
+			else if (0 == sb_chip->boot_switch_sata_ide)
+				sb_config->SATAMODE.SataMode.SataIdeCombMdPriSecOpt = 1; //1 -IDE as secondary.
+		} else {
+  			sb_config->SATAMODE.SataMode.SataController = DISABLED;
+		}
+
+//-		sataInitBeforePciEnum(sb_config); // Init SATA class code and PHY
+		break;
+
+	case (0x12 << 3) | 0: /* 0:12:0 OHCI-USB1 */
+	case (0x12 << 3) | 2: /* 0:12:2 EHCI-USB1 */
+	case (0x13 << 3) | 0: /* 0:13:0 OHCI-USB2 */
+	case (0x13 << 3) | 2: /* 0:13:2 EHCI-USB2 */
+	case (0x14 << 3) | 5: /* 0:14:5 OHCI-USB4 */
+//-		usbInitBeforePciEnum(sb_config);  // USB POST TIME Only
+		break;
+
+	case (0x14 << 3) | 0: /* 0:14:0 SMBUS */
+		break;
+
+	case (0x14 << 3) | 1: /* 0:14:1 IDE */
+		if (dev->enabled) {
+			sb_config->SATAMODE.SataMode.SataIdeCombinedMode = ENABLED;
+		} else {
+  			sb_config->SATAMODE.SataMode.SataIdeCombinedMode = DISABLED;
+		}
+//-		sataInitBeforePciEnum(sb_config); // Init SATA class code and PHY
+		break;
+
+	case (0x14 << 3) | 2: /* 0:14:2 HDA */
+		if (dev->enabled) {
+  			if (AZALIA_DISABLE == sb_config->AzaliaController) {
+  				sb_config->AzaliaController = AZALIA_AUTO;
+			}
+			printk(BIOS_DEBUG, "hda enabled\n");
+		} else {
+  			sb_config->AzaliaController = AZALIA_DISABLE;
+			printk(BIOS_DEBUG, "hda disabled\n");
+		}
+//-		azaliaInitBeforePciEnum(sb_config); // Detect and configure High Definition Audio
+		break;
+
+
+	case (0x14 << 3) | 3: /* 0:14:3 LPC */
+		break;
+
+	case (0x14 << 3) | 4: /* 0:14:4 PCI */
+		break;
+
+	case (0x14 << 3) | 6: /* 0:14:6 GEC */
+		if (dev->enabled) {
+			sb_config->GecConfig = 0;
+			printk(BIOS_DEBUG, "gec enabled\n");
+		} else {
+			sb_config->GecConfig = 1;
+			printk(BIOS_DEBUG, "gec disabled\n");
+		}
+//-		gecInitBeforePciEnum(sb_config); // Init GEC
+		break;
+
+	case (0x15 << 3) | 0: /* 0:15:0 PCIe PortA */
+	case (0x15 << 3) | 1: /* 0:15:1 PCIe PortB */
+	case (0x15 << 3) | 2: /* 0:15:2 PCIe PortC */
+	case (0x15 << 3) | 3: /* 0:15:3 PCIe PortD */
+		gpp_port = (dev->path.pci.devfn) & 0x03;
+		if (dev->enabled) {
+			sb_config->PORTCONFIG[gpp_port].PortCfg.PortPresent = ENABLED;
+		} else {
+			sb_config->PORTCONFIG[gpp_port].PortCfg.PortPresent = DISABLED;
+		}
+
+		/*
+		 * GPP_CFGMODE_X4000: PortA Lanes[3:0]
+		 * GPP_CFGMODE_X2200: PortA Lanes[1:0], PortB Lanes[3:2]
+		 * GPP_CFGMODE_X2110: PortA Lanes[1:0], PortB Lane2, PortC Lane3
+		 * GPP_CFGMODE_X1111: PortA Lanes0, PortB Lane1, PortC Lane2, PortD Lane3
+		 */
+		if (sb_config->GppLinkConfig != sb_chip->gpp_configuration) {
+			sb_config->GppLinkConfig = sb_chip->gpp_configuration;
+		}
+
+//-		sbPcieGppEarlyInit(sb_config);
+		break;
+
+	default:
+		break;
+	}
+
+	/* Special setting ABCFG registers before PCI emulation. */
+//-	abSpecialSetBeforePciEnum(sb_config);
+//-  	usbDesertPll(sb_config);
+	//sb_config->StdHeader.Func = SB_BEFORE_PCI_INIT;
+	//AmdSbDispatcher(sb_config);
+}
+
+struct chip_operations southbridge_amd_cimx_sb900_ops = {
+	CHIP_NAME("ATI SB900")
+	.enable_dev = sb900_enable,
+};
diff --git a/src/southbridge/amd/cimx/sb900/lpc.c b/src/southbridge/amd/cimx/sb900/lpc.c
new file mode 100755
index 0000000000..48bfe36556
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/lpc.c
@@ -0,0 +1,179 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <device/pci.h>
+#include "lpc.h"
+#include <console/console.h>	/* printk */
+
+
+void lpc_read_resources(device_t dev)
+{
+	struct resource *res;
+
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_read_resources - Start.\n");
+	/* Get the normal pci resources of this device */
+	pci_dev_read_resources(dev);	/* We got one for APIC, or one more for TRAP */
+
+	pci_get_resource(dev, SPIROM_BASE_ADDRESS); /* SPI ROM base address */
+
+	/* Add an extra subtractive resource for both memory and I/O. */
+	res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
+	res->base = 0;
+	res->size = 0x1000;
+	res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
+		     IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+	res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
+	res->base = 0xff800000;
+	res->size = 0x00800000; /* 8 MB for flash */
+	res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
+		     IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+	res = new_resource(dev, 3); /* IOAPIC */
+	res->base = 0xfec00000;
+	res->size = 0x00001000;
+	res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+	compact_resources(dev);
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_read_resources - End.\n");
+}
+
+void lpc_set_resources(struct device *dev)
+{
+	struct resource *res;
+
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_set_resources - Start.\n");
+	pci_dev_set_resources(dev);
+
+	/* Specical case. SPI Base Address. The SpiRomEnable should be set. */
+	res = find_resource(dev, SPIROM_BASE_ADDRESS);
+	pci_write_config32(dev, SPIROM_BASE_ADDRESS, res->base | 1 << 1);
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_set_resources - End.\n");
+}
+
+/**
+ * @brief Enable resources for children devices
+ *
+ * @param dev the device whos children's resources are to be enabled
+ *
+ */
+void lpc_enable_childrens_resources(device_t dev)
+{
+	struct bus *link;
+	u32 reg, reg_x;
+	int var_num = 0;
+	u16 reg_var[3];
+
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_enable_childrens_resources - Start.\n");
+	reg = pci_read_config32(dev, 0x44);
+	reg_x = pci_read_config32(dev, 0x48);
+
+	for (link = dev->link_list; link; link = link->next) {
+		device_t child;
+		for (child = link->children; child;
+		     child = child->sibling) {
+			if (child->enabled
+			    && (child->path.type == DEVICE_PATH_PNP)) {
+				struct resource *res;
+				for (res = child->resource_list; res; res = res->next) {
+					u32 base, end;	/*  don't need long long */
+					if (!(res->flags & IORESOURCE_IO))
+						continue;
+					base = res->base;
+					end = resource_end(res);
+/*
+					printk(BIOS_DEBUG, "sb900 lpc decode:%s, base=0x%08x, end=0x%08x\n",
+					     dev_path(child), base, end);
+*/
+					switch (base) {
+					case 0x60:	/*  KB */
+					case 0x64:	/*  MS */
+						reg |= (1 << 29);
+						break;
+					case 0x3f8:	/*  COM1 */
+						reg |= (1 << 6);
+						break;
+					case 0x2f8:	/*  COM2 */
+						reg |= (1 << 7);
+						break;
+					case 0x378:	/*  Parallal 1 */
+						reg |= (1 << 0);
+						break;
+					case 0x3f0:	/*  FD0 */
+						reg |= (1 << 26);
+						break;
+					case 0x220:	/*  Aduio 0 */
+						reg |= (1 << 8);
+						break;
+					case 0x300:	/*  Midi 0 */
+						reg |= (1 << 18);
+						break;
+					case 0x400:
+						reg_x |= (1 << 16);
+						break;
+					case 0x480:
+						reg_x |= (1 << 17);
+						break;
+					case 0x500:
+						reg_x |= (1 << 18);
+						break;
+					case 0x580:
+						reg_x |= (1 << 19);
+						break;
+					case 0x4700:
+						reg_x |= (1 << 22);
+						break;
+					case 0xfd60:
+						reg_x |= (1 << 23);
+						break;
+					default:
+						if (var_num >= 3)
+							continue;	/* only 3 var ; compact them ? */
+						switch (var_num) {
+						case 0:
+							reg_x |= (1 << 2);
+							break;
+						case 1:
+							reg_x |= (1 << 24);
+							break;
+						case 2:
+							reg_x |= (1 << 25);
+							break;
+						}
+						reg_var[var_num++] =
+						    base & 0xffff;
+					}
+				}
+			}
+		}
+	}
+	pci_write_config32(dev, 0x44, reg);
+	pci_write_config32(dev, 0x48, reg_x);
+	/* Set WideIO for as many IOs found (fall through is on purpose) */
+	switch (var_num) {
+	case 2:
+		pci_write_config16(dev, 0x90, reg_var[2]);
+	case 1:
+		pci_write_config16(dev, 0x66, reg_var[1]);
+	case 0:
+		//pci_write_config16(dev, 0x64, reg_var[0]); //cause filo can not find sata
+		break;
+	}
+	printk(BIOS_DEBUG, "SB900 - Lpc.c - lpc_enable_childrens_resources - End.\n");
+}
diff --git a/src/southbridge/amd/cimx/sb900/lpc.h b/src/southbridge/amd/cimx/sb900/lpc.h
new file mode 100755
index 0000000000..f4d1493fba
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/lpc.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _SB900_LPC_H_
+#define _SB900_LPC_H_
+
+
+#define SPIROM_BASE_ADDRESS	0xA0 /* SPI ROM base address */
+
+void lpc_read_resources(device_t dev);
+void lpc_set_resources(device_t dev);
+void lpc_enable_childrens_resources(device_t dev);
+
+#endif
diff --git a/src/southbridge/amd/cimx/sb900/smbus.c b/src/southbridge/amd/cimx/sb900/smbus.c
new file mode 100755
index 0000000000..1fbf5ac6c7
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/smbus.c
@@ -0,0 +1,270 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 <arch/io.h>
+#include "smbus.h"
+#include <console/console.h>	/* printk */
+
+static inline void smbus_delay(void)
+{
+	outb(inb(0x80), 0x80);
+}
+
+static int smbus_wait_until_ready(u32 smbus_io_base)
+{
+	u32 loops;
+
+	loops = SMBUS_TIMEOUT;
+	do {
+		u8 val;
+		val = inb(smbus_io_base + SMBHSTSTAT);
+		val &= 0x1f;
+		if (val == 0) {	/* ready now */
+			return 0;
+		}
+		outb(val, smbus_io_base + SMBHSTSTAT);
+	} while (--loops);
+
+	return -2;		/* time out */
+}
+
+static int smbus_wait_until_done(u32 smbus_io_base)
+{
+	u32 loops;
+
+	loops = SMBUS_TIMEOUT;
+	do {
+		u8 val;
+
+		val = inb(smbus_io_base + SMBHSTSTAT);
+		val &= 0x1f;	/* mask off reserved bits */
+		if (val & 0x1c) {
+			return -5;	/* error */
+		}
+		if (val == 0x02) {
+			outb(val, smbus_io_base + SMBHSTSTAT);	/* clear status */
+			return 0;
+		}
+	} while (--loops);
+
+	return -3;		/* timeout */
+}
+
+int do_smbus_recv_byte(u32 smbus_io_base, u32 device)
+{
+	u8 byte;
+
+	if (smbus_wait_until_ready(smbus_io_base) < 0) {
+        printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_recv_byte - smbus no ready.\n");
+		return -2;	/* not ready */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_recv_byte - Start.\n");
+	/* set the device I'm talking too */
+	outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBHSTADDR);
+
+	byte = inb(smbus_io_base + SMBHSTCTRL);
+	byte &= 0xe3;		/* Clear [4:2] */
+	byte |= (1 << 2) | (1 << 6);	/* Byte data read/write command, start the command */
+	outb(byte, smbus_io_base + SMBHSTCTRL);
+
+	/* poll for transaction completion */
+	if (smbus_wait_until_done(smbus_io_base) < 0) {
+		return -3;	/* timeout or error */
+	}
+
+	/* read results of transaction */
+	byte = inb(smbus_io_base + SMBHSTCMD);
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_recv_byte - End.\n");
+	return byte;
+}
+
+int do_smbus_send_byte(u32 smbus_io_base, u32 device, u8 val)
+{
+	u8 byte;
+
+	if (smbus_wait_until_ready(smbus_io_base) < 0) {
+        printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_send_byte - smbus no ready.\n");
+		return -2;	/* not ready */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_send_byte - Start.\n");
+	/* set the command... */
+	outb(val, smbus_io_base + SMBHSTCMD);
+
+	/* set the device I'm talking too */
+	outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBHSTADDR);
+
+	byte = inb(smbus_io_base + SMBHSTCTRL);
+	byte &= 0xe3;		/* Clear [4:2] */
+	byte |= (1 << 2) | (1 << 6);	/* Byte data read/write command, start the command */
+	outb(byte, smbus_io_base + SMBHSTCTRL);
+
+	/* poll for transaction completion */
+	if (smbus_wait_until_done(smbus_io_base) < 0) {
+		return -3;	/* timeout or error */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_send_byte - End.\n");
+	return 0;
+}
+
+int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address)
+{
+	u8 byte;
+
+	if (smbus_wait_until_ready(smbus_io_base) < 0) {
+        printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_read_byte - smbus no ready.\n");
+		return -2;	/* not ready */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_read_byte - Start.\n");
+	/* set the command/address... */
+	outb(address & 0xff, smbus_io_base + SMBHSTCMD);
+
+	/* set the device I'm talking too */
+	outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBHSTADDR);
+
+	byte = inb(smbus_io_base + SMBHSTCTRL);
+	byte &= 0xe3;		/* Clear [4:2] */
+	byte |= (1 << 3) | (1 << 6);	/* Byte data read/write command, start the command */
+	outb(byte, smbus_io_base + SMBHSTCTRL);
+
+	/* poll for transaction completion */
+	if (smbus_wait_until_done(smbus_io_base) < 0) {
+		return -3;	/* timeout or error */
+	}
+
+	/* read results of transaction */
+	byte = inb(smbus_io_base + SMBHSTDAT0);
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_read_byte - End.\n");
+	return byte;
+}
+
+int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val)
+{
+	u8 byte;
+
+	if (smbus_wait_until_ready(smbus_io_base) < 0) {
+        printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_write_byte - smbus no ready.\n");
+		return -2;	/* not ready */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_write_byte - Start.\n");
+	/* set the command/address... */
+	outb(address & 0xff, smbus_io_base + SMBHSTCMD);
+
+	/* set the device I'm talking too */
+	outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBHSTADDR);
+
+	/* output value */
+	outb(val, smbus_io_base + SMBHSTDAT0);
+
+	byte = inb(smbus_io_base + SMBHSTCTRL);
+	byte &= 0xe3;		/* Clear [4:2] */
+	byte |= (1 << 3) | (1 << 6);	/* Byte data read/write command, start the command */
+	outb(byte, smbus_io_base + SMBHSTCTRL);
+
+	/* poll for transaction completion */
+	if (smbus_wait_until_done(smbus_io_base) < 0) {
+		return -3;	/* timeout or error */
+	}
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - do_smbus_write_byte - End.\n");
+	return 0;
+}
+
+void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val)
+{
+	u32 tmp;
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_ab_indx - Start.\n");
+	outl((reg_space & 0x7) << 29 | reg_addr, AB_INDX);
+	tmp = inl(AB_DATA);
+	/* rpr 4.2
+	 * For certain revisions of the chip, the ABCFG registers,
+	 * with an address of 0x100NN (where 'N' is any hexadecimal
+	 * number), require an extra programming step.*/
+	outl(0, AB_INDX);
+
+	tmp &= ~mask;
+	tmp |= val;
+
+	/* printk(BIOS_DEBUG, "about write %x, index=%x", tmp, (reg_space&0x3)<<29 | reg_addr); */
+	outl((reg_space & 0x7) << 29 | reg_addr, AB_INDX);	/* probably we dont have to do it again. */
+	outl(tmp, AB_DATA);
+	outl(0, AB_INDX);
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_ab_indx - End.\n");
+}
+
+void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val)
+{
+	u32 tmp;
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_rc_indx - Start.\n");
+	outl((reg_space & 0x7) << 29 | (port & 3) << 24 | reg_addr, AB_INDX);
+	tmp = inl(AB_DATA);
+	/* rpr 4.2
+	 * For certain revisions of the chip, the ABCFG registers,
+	 * with an address of 0x100NN (where 'N' is any hexadecimal
+	 * number), require an extra programming step.*/
+	outl(0, AB_INDX);
+
+	tmp &= ~mask;
+	tmp |= val;
+
+	//printk(BIOS_DEBUG, "about write %x, index=%x", tmp, (reg_space&0x3)<<29 | (port&3) << 24 | reg_addr);
+	outl((reg_space & 0x7) << 29 | (port & 3) << 24 | reg_addr, AB_INDX);	/* probably we dont have to do it again. */
+	outl(tmp, AB_DATA);
+	outl(0, AB_INDX);
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_rc_indx - End.\n");
+}
+
+/* space = 0: AX_INDXC, AX_DATAC
+ * space = 1: AX_INDXP, AX_DATAP
+ */
+void alink_ax_indx(u32 space /*c or p? */ , u32 axindc, u32 mask, u32 val)
+{
+	u32 tmp;
+
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_ax_indx - Start.\n");
+	/* read axindc to tmp */
+	outl(space << 29 | space << 3 | 0x30, AB_INDX);
+	outl(axindc, AB_DATA);
+	outl(0, AB_INDX);
+	outl(space << 29 | space << 3 | 0x34, AB_INDX);
+	tmp = inl(AB_DATA);
+	outl(0, AB_INDX);
+
+	tmp &= ~mask;
+	tmp |= val;
+
+	/* write tmp */
+	outl(space << 29 | space << 3 | 0x30, AB_INDX);
+	outl(axindc, AB_DATA);
+	outl(0, AB_INDX);
+	outl(space << 29 | space << 3 | 0x34, AB_INDX);
+	outl(tmp, AB_DATA);
+	outl(0, AB_INDX);
+    printk(BIOS_INFO, "SB900 - Smbus.c - alink_ax_indx - End.\n");
+}
+
diff --git a/src/southbridge/amd/cimx/sb900/smbus.h b/src/southbridge/amd/cimx/sb900/smbus.h
new file mode 100755
index 0000000000..e6ade1ed48
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/smbus.h
@@ -0,0 +1,77 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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 _SB900_SMBUS_H_
+#define _SB900_SMBUS_H_
+
+//#include <stdint.h>
+
+#define SMBUS_IO_BASE	SMBUS0_BASE_ADDRESS
+
+#define SMBHSTSTAT 0x0
+#define SMBSLVSTAT 0x1
+#define SMBHSTCTRL 0x2
+#define SMBHSTCMD  0x3
+#define SMBHSTADDR 0x4
+#define SMBHSTDAT0 0x5
+#define SMBHSTDAT1 0x6
+#define SMBHSTBLKDAT 0x7
+
+#define SMBSLVCTRL 0x8
+#define SMBSLVCMD_SHADOW 0x9
+#define SMBSLVEVT 0xa
+#define SMBSLVDAT 0xc
+
+#define AX_INDXC  0
+#define AX_INDXP  2
+#define AXCFG     4
+#define ABCFG     6
+#define RC_INDXC  1
+#define RC_INDXP  3
+
+#define AB_INDX   0xCD8
+#define AB_DATA   (AB_INDX+4)
+
+/* Between 1-10 seconds, We should never timeout normally
+ * Longer than this is just painful when a timeout condition occurs.
+ */
+#define SMBUS_TIMEOUT (100*1000*10)
+
+#define abcfg_reg(reg, mask, val)	\
+	alink_ab_indx((ABCFG), (reg), (mask), (val))
+#define axcfg_reg(reg, mask, val)	\
+	alink_ab_indx((AXCFG), (reg), (mask), (val))
+#define axindxc_reg(reg, mask, val)	\
+	alink_ax_indx((AX_INDXC), (reg), (mask), (val))
+#define axindxp_reg(reg, mask, val)		\
+	alink_ax_indx((AX_INDXP), (reg), (mask), (val))
+#define rcindxc_reg(reg, port, mask, val)	\
+	alink_rc_indx((RC_INDXC), (reg), (port), (mask), (val))
+#define rcindxp_reg(reg, port, mask, val)	\
+	alink_rc_indx((RC_INDXP), (reg), (port), (mask), (val))
+
+int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address);
+int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, u8 val);
+int do_smbus_recv_byte(u32 smbus_io_base, u32 device);
+int do_smbus_send_byte(u32 smbus_io_base, u32 device, u8 val);
+void alink_rc_indx(u32 reg_space, u32 reg_addr, u32 port, u32 mask, u32 val);
+void alink_ab_indx(u32 reg_space, u32 reg_addr, u32 mask, u32 val);
+void alink_ax_indx(u32 space /*c or p? */ , u32 axindc, u32 mask, u32 val);
+
+#endif