RD890: AMD RD890/SR56X0 CIMX wrapper

Support AMD RD890 CIMX support AMD RD890TV, RX780, RD780, SR56x0,
RD890 and 990FX chipsets.

Change-Id: I39dc5fc316fbb465808bac48a13a49b7d867f04f
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/559
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

13 files changed, 1159 insertions, 0 deletions

diff --git a/src/northbridge/amd/Kconfig b/src/northbridge/amd/Kconfig
index 4a120ca50b..33e19c2a9f 100644
--- a/src/northbridge/amd/Kconfig
+++ b/src/northbridge/amd/Kconfig
@@ -4,6 +4,7 @@ source src/northbridge/amd/gx2/Kconfig
 source src/northbridge/amd/amdfam10/Kconfig
 source src/northbridge/amd/lx/Kconfig
 source src/northbridge/amd/agesa/Kconfig
+source src/northbridge/amd/cimx/Kconfig
 menu "HyperTransport setup"
 	#could be implemented for K8 (NORTHBRIDGE_AMD_AMDK8)
 	depends on (NORTHBRIDGE_AMD_AMDFAM10) && EXPERT
diff --git a/src/northbridge/amd/Makefile.inc b/src/northbridge/amd/Makefile.inc
index bf96b80c16..c438473b01 100644
--- a/src/northbridge/amd/Makefile.inc
+++ b/src/northbridge/amd/Makefile.inc
@@ -5,3 +5,4 @@ subdirs-$(CONFIG_NORTHBRIDGE_AMD_GX2) += gx2
 subdirs-$(CONFIG_NORTHBRIDGE_AMD_LX) += lx
 
 subdirs-$(CONFIG_AMD_AGESA) += agesa
+subdirs-$(CONFIG_AMD_NB_CIMX) += cimx
diff --git a/src/northbridge/amd/cimx/Kconfig b/src/northbridge/amd/cimx/Kconfig
new file mode 100644
index 0000000000..6751bd4f4f
--- /dev/null
+++ b/src/northbridge/amd/cimx/Kconfig
@@ -0,0 +1,24 @@
+#
+# This file is part of the coreboot project.
+#
+#Copyright (C) 2012 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 AMD_NB_CIMX
+	bool
+	default n
+
+source src/northbridge/amd/cimx/rd890/Kconfig
diff --git a/src/northbridge/amd/cimx/Makefile.inc b/src/northbridge/amd/cimx/Makefile.inc
new file mode 100644
index 0000000000..80844c87fe
--- /dev/null
+++ b/src/northbridge/amd/cimx/Makefile.inc
@@ -0,0 +1,20 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2012 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_NORTHBRIDGE_AMD_CIMX_RD890) += rd890
diff --git a/src/northbridge/amd/cimx/rd890/Kconfig b/src/northbridge/amd/cimx/rd890/Kconfig
new file mode 100644
index 0000000000..6731b60fca
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/Kconfig
@@ -0,0 +1,33 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2012 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 NORTHBRIDGE_AMD_CIMX_RD890
+	bool
+	default n
+	select AMD_NB_CIMX
+
+config REDIRECT_NBCIMX_TRACE_TO_SERIAL
+	bool "Redirect AMD Northbridge CIMX Trace to serial console"
+	default n
+	depends on NORTHBRIDGE_AMD_CIMX_RD890
+	help
+	  This Option allows you to redirect the AMD Northbridge CIMX
+	  Trace debug information to the serial console.
+
+          Warning: Only enable this option when debuging or tracing AMD CIMX code.
diff --git a/src/northbridge/amd/cimx/rd890/Makefile.inc b/src/northbridge/amd/cimx/rd890/Makefile.inc
new file mode 100644
index 0000000000..5eaefd128c
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/Makefile.inc
@@ -0,0 +1,25 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2012 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
+#
+
+
+# RD890 Platform Files
+romstage-y += early.c
+
+ramstage-y += late.c
+
diff --git a/src/northbridge/amd/cimx/rd890/NbPlatform.h b/src/northbridge/amd/cimx/rd890/NbPlatform.h
new file mode 100644
index 0000000000..824057ad05
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/NbPlatform.h
@@ -0,0 +1,147 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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 _NB_PLATFORM_H_
+#define _NB_PLATFORM_H_
+
+#define SERIAL_OUT_SUPPORT //enable serial output
+#define CIMX_DEBUG
+
+#ifdef  CIMX_DEBUG
+#define CIMX_TRACE_SUPPORT
+#define CIMX_ASSERT_SUPPORT
+#endif
+
+#ifdef  CIMX_TRACE_SUPPORT
+	#define CIMX_INIT_TRACE(Arguments)
+	#if CONFIG_REDIRECT_NBCIMX_TRACE_TO_SERIAL
+		#define TRACE_DATA(Ptr, Level) BIOS_DEBUG //always enable
+		#define CIMX_TRACE(Argument) do {do_printk Argument;} while (0)
+	#else
+		#define TRACE_DATA(Ptr, Level)
+		#define CIMX_TRACE(Argument)
+	#endif
+#else
+	#define CIMX_TRACE(Argument)
+	#define CIMX_INIT_TRACE(Arguments)
+#endif
+
+#ifdef CIMX_ASSERT_SUPPORT
+	#ifdef ASSERT
+		#undef ASSERT
+		#define ASSERT CIMX_ASSERT
+	#endif
+	#ifdef CIMX_TRACE_SUPPORT
+		#define CIMX_ASSERT(x)  if(!(x)) {\
+			LibAmdTraceDebug (CIMX_TRACE_ALL, (CHAR8 *)"ASSERT !!! "__FILE__" - line %d\n", __LINE__); \
+			/*__asm {jmp $}; */\
+		}
+	//#define IDS_HDT_CONSOLE(s, args...) do_printk(BIOS_DEBUG, s, ##args)
+	#else
+		#define CIMX_ASSERT(x) if(!(x)) {\
+			/*__asm {jmp $}; */\
+		}
+	#endif
+#else
+	#define CIMX_ASSERT(x)
+#endif
+
+/*----------------------------------------------------------------------------------------
+ *                          E X P O R T E D    F U N C T I O N S
+ *----------------------------------------------------------------------------------------
+ */
+
+//#define STALL(Ptr, TimeUs, Flag) LibAmdSbStall(TimeUs)
+#define STALL(Ptr, TimeUs, Flag) LibAmdSbStall(TimeUs, Ptr)
+
+#ifdef  B2_IMAGE
+#define REPORT_EVENT(Class, Info, Param1, Param2, Param3, Param4, CfgPtr) LibNbEventLog(Class, Info, Param1, Param2, Param3, Param4, CfgPtr)
+#else
+#define REPORT_EVENT(Class, Info, Param1, Param2, Param3, Param4, CfgPtr)
+#endif
+
+
+
+// CIMX configuration parameters
+//#define CIMX_B2_IMAGE_BASE_ADDRESS      0xFFF40000
+/**
+ * PCIEX_BASE_ADDRESS - Define PCIE base address
+ *
+ * @param[Option]     MOVE_PCIEBAR_TO_F0000000 Set PCIe base address to 0xF7000000
+ */
+#ifdef  MOVE_PCIEBAR_TO_F0000000
+#define PCIEX_BASE_ADDRESS           0xF7000000
+#else
+#define PCIEX_BASE_ADDRESS           CONFIG_MMCONF_BASE_ADDRESS
+#endif
+
+
+
+#define CIMX_S3_SAVE 1
+#include "cbtypes.h"
+#include <console/console.h>
+
+#include "amd.h" //cimx typedef
+#include <amdlib.h>
+#include "amdAcpiLib.h"
+#include "amdAcpiMadt.h"
+#include "amdAcpiIvrs.h"
+#include "amdSbLib.h"
+#include "nbPcie.h"
+
+//must put before the nbType.h
+#include "platform_cfg.h" /*platform dependented configuration */
+#include "nbType.h"
+
+#include "nbLib.h"
+#include "nbDef.h"
+#include "nbInit.h"
+#include "nbHtInit.h"
+#include "nbIommu.h"
+#include "nbEventLog.h"
+#include "nbRegisters.h"
+#include "nbPcieAspm.h"
+#include "nbPcieLinkWidth.h"
+#include "nbPcieHotplug.h"
+#include "nbPciePortRemap.h"
+#include "nbPcieWorkarounds.h"
+#include "nbPcieCplBuffers.h"
+#include "nbPciePllControl.h"
+#include "nbMiscInit.h"
+#include "nbIoApic.h"
+#include "nbPcieSb.h"
+#include "nbRecovery.h"
+#include "nbMaskedMemoryInit.h"
+
+
+#define FIX_PTR_ADDR(x, y) x
+
+#define TRACE_ALWAYS  0xffffffff
+
+#define AmdNbDispatcher NULL
+
+#define CIMX_TRACE_ALL    0xFFFFFFFF
+#define CIMX_NBPOR_TRACE  0xFFFFFFFF
+#define CIMX_NBHT_TRACE   0xFFFFFFFF
+#define CIMX_NBPCIE_TRACE 0xFFFFFFFF
+#define CIMX_NB_TRACE     0xFFFFFFFF
+#define CIMX_NBPCIE_MISC  0xFFFFFFFF
+
+#endif
+
diff --git a/src/northbridge/amd/cimx/rd890/amd.h b/src/northbridge/amd/cimx/rd890/amd.h
new file mode 100644
index 0000000000..d99f90f575
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/amd.h
@@ -0,0 +1,385 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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_
+
+#include "cbtypes.h"
+
+
+#define VOLATILE  volatile
+#define CALLCONV
+#define ROMDATA
+#define CIMXAPI   EFIAPI
+
+//
+//
+// AGESA Types and Definitions
+//
+//
+#ifndef NULL
+  #define NULL 0
+#endif
+
+
+#define LAST_ENTRY 0xFFFFFFFF
+#define IOCF8 0xCF8
+#define IOCFC 0xCFC
+#define IN
+#define OUT
+#define IMAGE_SIGNATURE 'DMA$'
+
+typedef UINTN 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) (UINT32 Param1, UINTN 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 AMD NB UEFI drivers
+typedef struct _AMD_CONFIG_PARAMS {
+  VOID            **PeiServices;              ///< Pointer to PEI service table
+  VOID            *StallPpi;                  ///< Pointer to Stall PPI
+//  UINT32          Func;
+  VOID            *PcieBasePtr;               ///< TBD
+  CALLOUT_ENTRY   CalloutPtr;                 ///<pointer to local driver callback function
+  CALLOUT_ENTRY   InterfaceCalloutPtr;        ///<pointer to external interface driver callback function
+} AMD_CONFIG_PARAMS;
+
+
+/// AGESA Binary module header structure
+typedef struct _AMD_IMAGE_HEADER {
+  IN  UINT32  Signature;                          ///< Binary Signature
+  IN  CHAR8   CreatorID[8];                       ///< 8 characters ID
+  IN  CHAR8   Version[12];                        ///< 12 characters version
+  IN  UINT32  ModuleInfoOffset;                   ///< Offset of module
+  IN  UINT32  EntryPointAddress;                  ///< Entry address
+  IN  UINT32  ImageBase;                          ///< Image base
+  IN  UINT32  RelocTableOffset;                   ///< Relocate Table offset
+  IN  UINT32  ImageSize;                          ///< Size
+  IN  UINT16  Checksum;                           ///< Checksum
+  IN  UINT8   ImageType;                          ///< Type
+  IN  UINT8   V_Reserved;                         ///< Reserved
+} AMD_IMAGE_HEADER;
+
+
+/// AGESA Binary module header structure
+typedef struct _AMD_MODULE_HEADER {
+  IN  UINT32          ModuleHeaderSignature;      ///< Module signature
+  IN  CHAR8           ModuleIdentifier[8];        ///< 8 characters ID
+  IN  CHAR8           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;
+
+/// Extended PCI address format
+typedef struct {
+  IN OUT  UINT32      Register:12;                ///< Register offset
+  IN OUT  UINT32      Function:3;                 ///< Function number
+  IN OUT  UINT32      Device:5;                   ///< Device number
+  IN OUT  UINT32      Bus:8;                      ///< Bus number
+  IN OUT  UINT32      Segment:4;                  ///< Segment
+} EXT_PCI_ADDR;
+
+/// Union type for PCI address
+typedef union _PCI_ADDR {
+  IN  UINT32          AddressValue;               ///< Formal address
+  IN  EXT_PCI_ADDR    Address;                    ///< Extended address
+} PCI_ADDR;
+
+#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)
+
+#define MAKE_SBDFO(Seg, Bus, Dev, Fun, Off) ((((UINT32) (Seg)) << 28) | (((UINT32) (Bus)) << 20) | \
+                   (((UINT32)(Dev)) << 15) | (((UINT32)(Fun)) << 12) | ((UINT32)(Off)))
+#define ILLEGAL_SBDFO 0xFFFFFFFF
+
+/// CPUID data received registers format
+typedef struct _CPUID_DATA {
+  IN  OUT UINT32          EAX_Reg;                ///< CPUID instruction result in EAX
+  IN  OUT UINT32          EBX_Reg;                ///< CPUID instruction result in EBX
+  IN  OUT UINT32          ECX_Reg;                ///< CPUID instruction result in ECX
+  IN  OUT UINT32          EDX_Reg;                ///< CPUID instruction result in EDX
+} CPUID_DATA;
+
+#define WARM_RESET 1
+#define COLD_RESET 2
+
+/// 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
+
+#ifdef  ASSERT
+  #undef  ASSERT
+  #define ASSERT(x)
+#endif
+
+#endif
diff --git a/src/northbridge/amd/cimx/rd890/cbtypes.h b/src/northbridge/amd/cimx/rd890/cbtypes.h
new file mode 100644
index 0000000000..ade55d7136
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/cbtypes.h
@@ -0,0 +1,71 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 - 2012 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 int64_t __int64;
+typedef void VOID;
+typedef uint32_t UINTN;//
+typedef int8_t CHAR8;
+typedef uint8_t UINT8;
+typedef uint16_t UINT16;
+typedef uint32_t UINT32;
+typedef uint64_t UINT64;
+*/
+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 signed int INT32;
+typedef unsigned long long UINT64;
+
+#define TRUE  1
+#define FALSE 0
+typedef unsigned char BOOLEAN;
+
+#ifndef VOLATILE
+#define VOLATILE volatile
+#endif
+
+#ifndef IN
+#define IN
+#endif
+#ifndef OUT
+#define OUT
+#endif
+
+//porting.h
+#ifndef CONST
+#define CONST const
+#endif
+#ifndef STATIC
+#define STATIC static
+#endif
+#ifndef VOLATILE
+#define VOLATILE volatile
+#endif
+
+#endif
diff --git a/src/northbridge/amd/cimx/rd890/chip.h b/src/northbridge/amd/cimx/rd890/chip.h
new file mode 100644
index 0000000000..c2f985bacc
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/chip.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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_RD890_CHIP_H_
+#define _CIMX_RD890_CHIP_H_
+
+extern struct chip_operations northbridge_amd_cimx_rd890_ops;
+
+/**
+ * RD890 specific device configuration
+ */
+struct northbridge_amd_cimx_rd890_config
+{
+	u8 gpp1_configuration;
+	u8 gpp2_configuration;
+	u8 gpp3a_configuration;
+	u16 port_enable;
+};
+
+#endif /* _CIMX_RD890_CHIP_H_ */
+
diff --git a/src/northbridge/amd/cimx/rd890/early.c b/src/northbridge/amd/cimx/rd890/early.c
new file mode 100644
index 0000000000..8008223669
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/early.c
@@ -0,0 +1,113 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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 <stdint.h>
+#include "NbPlatform.h"
+#include "rd890_cfg.h"
+#include "nb_cimx.h"
+
+
+/**
+ * @brief disable GPP1 Port0,1, GPP2, GPP3a Port0,1,2,3,4,5, GPP3b
+ *
+ * SR5650/5670/5690 RD890 chipset, read pci config space hang at POR,
+ * Disable all Pcie Bridges to work around It.
+ */
+void sr56x0_rd890_disable_pcie_bridge(void)
+{
+	u32			nb_dev;
+	u32			mask;
+	u32			val;
+	AMD_NB_CONFIG_BLOCK	cfg_block;
+	AMD_NB_CONFIG_BLOCK	*cfg_ptr = &cfg_block;
+	AMD_NB_CONFIG		*nb_cfg  = &(cfg_block.Northbridges[0]);
+
+        nb_cfg->ConfigPtr = &cfg_ptr;
+	nb_dev = MAKE_SBDFO(0, 0x0, 0x0, 0x0, 0x0);
+	val = (1 << 2) | (1 << 3); /*GPP1*/
+	val |= (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | (1 << 16) | (1 << 17); /*GPP3a*/
+	val |= (1 << 18) | (1 << 19); /*GPP2*/
+	val |= (1 << 20); /*GPP3b*/
+	mask = ~val;
+	LibNbPciIndexRMW(nb_dev | NB_MISC_INDEX, NB_MISC_REG0C,
+			AccessS3SaveWidth32,
+			mask,
+			val,
+			nb_cfg);
+}
+
+
+/**
+ * @brief South Bridge CIMx romstage entry,
+ *  wrapper of AmdPowerOnResetInit entry point.
+ */
+void nb_Poweron_Init(void)
+{
+	NB_CONFIG nb_cfg[MAX_NB_COUNT];
+	HT_CONFIG ht_cfg[MAX_NB_COUNT];
+	PCIE_CONFIG pcie_cfg[MAX_NB_COUNT];
+	AMD_NB_CONFIG_BLOCK gConfig;
+	AMD_NB_CONFIG_BLOCK *ConfigPtr = &gConfig;
+	AGESA_STATUS status;
+
+	printk(BIOS_DEBUG, "cimx/rd890 early.c %s() Start\n", __func__);
+	CIMX_INIT_TRACE();
+	CIMX_TRACE((BIOS_DEBUG, "NbPowerOnResetInit entry\n"));
+	rd890_cimx_config(&gConfig, &nb_cfg[0], &ht_cfg[0], &pcie_cfg[0]);
+
+	if (ConfigPtr->StandardHeader.CalloutPtr != NULL) {
+		ConfigPtr->StandardHeader.CalloutPtr(CB_AmdSetNbPorConfig, 0, &gConfig);
+	}
+
+	status = AmdPowerOnResetInit(&gConfig);
+	printk(BIOS_DEBUG, "cimx/rd890 early.c %s() End. return status=%x\n", __func__, status);
+}
+
+/**
+ * @brief South Bridge CIMx romstage entry,
+ *  wrapper of AmdHtInit entry point.
+ */
+void nb_Ht_Init(void)
+{
+	AGESA_STATUS status;
+	NB_CONFIG nb_cfg[MAX_NB_COUNT];
+	HT_CONFIG ht_cfg[MAX_NB_COUNT];
+	PCIE_CONFIG pcie_cfg[MAX_NB_COUNT];
+	AMD_NB_CONFIG_BLOCK gConfig;
+	AMD_NB_CONFIG_BLOCK *ConfigPtr = &gConfig;
+	u32 i;
+
+	rd890_cimx_config(&gConfig, &nb_cfg[0], &ht_cfg[0], &pcie_cfg[0]);
+
+	//Initialize HT structure
+	LibSystemApiCall(AmdHtInitializer, &gConfig);
+	for (i = 0; i < MAX_NB_COUNT; i ++) {
+		if (ConfigPtr->StandardHeader.CalloutPtr != NULL) {
+			ConfigPtr->StandardHeader.CalloutPtr(CB_AmdSetHtConfig, 0, (VOID*)&(gConfig.Northbridges[i]));
+		}
+	}
+
+	status = LibSystemApiCall(AmdHtInit, &gConfig);
+	printk(BIOS_DEBUG, "AmdHtInit status: %x\n", status);
+}
+
+void nb_S3_Init(void)
+{
+	//TODO
+}
diff --git a/src/northbridge/amd/cimx/rd890/late.c b/src/northbridge/amd/cimx/rd890/late.c
new file mode 100644
index 0000000000..208e5f1d77
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/late.c
@@ -0,0 +1,257 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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 <stdint.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <arch/ioapic.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include "NbPlatform.h"
+#include "nb_cimx.h"
+#include "rd890_cfg.h"
+
+
+/**
+ * Global RD890 CIMX Configuration structure
+ */
+static NB_CONFIG nb_cfg[MAX_NB_COUNT];
+static HT_CONFIG ht_cfg[MAX_NB_COUNT];
+static PCIE_CONFIG pcie_cfg[MAX_NB_COUNT];
+static AMD_NB_CONFIG_BLOCK gConfig;
+
+
+/**
+ * Reset PCIE Cores, Training the Ports selected by port_enable of devicetree
+ * After this call EP are fully operational on particular NB
+ */
+void nb_Pcie_Early_Init(void)
+{
+	LibSystemApiCall(AmdPcieEarlyInit, &gConfig); //AmdPcieEarlyInit(&gConfig);
+}
+
+void nb_Pcie_Late_Init(void)
+{
+	LibSystemApiCall(AmdPcieLateInit, &gConfig);
+}
+
+void nb_Early_Post_Init(void)
+{
+	LibSystemApiCall(AmdEarlyPostInit, &gConfig);
+}
+
+void nb_Mid_Post_Init(void)
+{
+	LibSystemApiCall(AmdMidPostInit, &gConfig);
+}
+
+void nb_Late_Post_Init(void)
+{
+	LibSystemApiCall(AmdLatePostInit, &gConfig);
+}
+
+static void rd890_enable(device_t dev)
+{
+	u32 address = 0;
+	u32 mask;
+	u32 val;
+	u32 devfn;
+	u32 port;
+	AMD_NB_CONFIG *NbConfigPtr = NULL;
+
+	u8 nb_index = 0; /* The first IO Hub, TODO: other NBs */
+	address = MAKE_SBDFO(0, 0x0, 0x0, 0x0, 0x0);
+	NbConfigPtr = &(gConfig.Northbridges[nb_index]);
+
+	devfn = dev->path.pci.devfn;
+	port = devfn >> 3;
+	printk(BIOS_INFO, "rd890_enable  ");
+	printk(BIOS_INFO, "Bus-%x Dev-%X Fun-%X, enable=%x\n",
+			0, (devfn >> 3), (devfn & 0x07), dev->enabled);
+	if (port != 0) {
+		if (dev->enabled) {
+			NbConfigPtr->pPcieConfig->PortConfiguration[port].ForcePortDisable = OFF;
+		} else {
+			NbConfigPtr->pPcieConfig->PortConfiguration[port].ForcePortDisable = ON;
+		}
+	}
+
+	switch (port) {
+		case 0x0: /* Root Complex, and ClkConfig */
+
+			if ((devfn & 0x07) == 1) { /* skip dev-0 fun-1 */
+				break;
+			}
+
+			/* CIMX configuration defualt initialize */
+			rd890_cimx_config(&gConfig, &nb_cfg[0], &ht_cfg[0], &pcie_cfg[0]);
+			if (gConfig.StandardHeader.CalloutPtr != NULL) {
+				/* NOTE: not use LibNbCallBack */
+				gConfig.StandardHeader.CalloutPtr(CB_AmdSetPcieEarlyConfig, (u32)dev, (VOID*)NbConfigPtr);
+			}
+			/* Reset PCIE Cores, Training the Ports selected by port_enable of devicetree
+			 * After this call EP are fully operational on particular NB
+			 */
+			nb_Pcie_Early_Init();
+			break;
+
+		case 0x2: /* Gpp1 Port0 */
+		case 0x3: /* Gpp1 Port1 */
+			mask = ~(1 << port);
+			val = (dev->enabled ? 0 : 1) << port;
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+			break;
+
+		case 0x4: /* Gpp3a Port0 */
+		case 0x5: /* Gpp3a Port1 */
+		case 0x6: /* Gpp3a Port2 */
+		case 0x7: /* Gpp3a Port3 */
+			mask = ~(1 << port);
+			val = (dev->enabled ? 0 : 1) << port;
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+			break;
+
+		case 0x8: /* SB ALink */
+			mask = ~(1 << 6);
+			val = (dev->enabled ? 1 : 0) << 6;
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+			break;
+
+		case 0x9: /* Gpp3a Port4 */
+		case 0xa: /* Gpp3a Port5 */
+			mask = ~(1 << (7 + port));
+			val = (dev->enabled ? 0 : 1) << (7 + port);
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+			break;
+
+		case 0xb: /* Gpp2 Port0 */
+		case 0xc: /* Gpp2 Port1 */
+			mask = ~(1 << (7 + port));
+			val = (dev->enabled ? 0 : 1) << (7 + port);
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+			break;
+
+		case 0xd: /* Gpp3b */
+			mask = ~(1 << (7 + port));
+			val = (dev->enabled ? 0 : 1) << (7 + port);
+			LibNbPciIndexRMW(address | NB_MISC_INDEX, NB_MISC_REG0C, AccessS3SaveWidth32, mask, val, NbConfigPtr);
+
+			/* Init NB at Early Post */
+			if (gConfig.StandardHeader.CalloutPtr != NULL) {
+				gConfig.StandardHeader.CalloutPtr(CB_AmdSetEarlyPostConfig, 0, (VOID*)NbConfigPtr);
+			}
+			nb_Early_Post_Init();//
+			if (gConfig.StandardHeader.CalloutPtr != NULL) {
+				gConfig.StandardHeader.CalloutPtr(CB_AmdSetMidPostConfig, 0, (VOID*)NbConfigPtr);
+			}
+			nb_Mid_Post_Init();
+			nb_Pcie_Late_Init();
+			if (gConfig.StandardHeader.CalloutPtr != NULL) {
+				gConfig.StandardHeader.CalloutPtr(CB_AmdSetLatePostConfig, 0, (VOID*)NbConfigPtr);
+			}
+			nb_Late_Post_Init();
+			break;
+
+		default:
+			printk(BIOS_INFO, "Buggy Device Tree\n");
+			break;
+	}
+}
+
+struct chip_operations northbridge_amd_cimx_rd890_ops = {
+	CHIP_NAME("ATI rd890")
+	.enable_dev = rd890_enable,
+};
+
+
+static void ioapic_init(struct device *dev)
+{
+	u32 ioapic_base;
+
+	pci_write_config32(dev, 0xF8, 0x1);
+	ioapic_base = pci_read_config32(dev, 0xFC) & 0xfffffff0;
+	setup_ioapic(ioapic_base, 1);
+}
+
+static void rd890_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 rd890_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 = rd890_read_resource,
+	.set_resources = rd890_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init = ioapic_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,
+};
+
+static const struct pci_driver ht_driver_rd890tv __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_RD890TV_HT,
+};
+
+static const struct pci_driver ht_driver_rd890 __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_RD890_HT,
+};
+
+static const struct pci_driver ht_driver_990fx __pci_driver = {
+	.ops = &ht_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_AMD_990FX_HT,
+};
diff --git a/src/northbridge/amd/cimx/rd890/nb_cimx.h b/src/northbridge/amd/cimx/rd890/nb_cimx.h
new file mode 100644
index 0000000000..a6f77db1a8
--- /dev/null
+++ b/src/northbridge/amd/cimx/rd890/nb_cimx.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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 _NB_CIMX_H_
+#define _NB_CIMX_H_
+
+/**
+ * @brief disable GPP1 Port0,1, GPP2, GPP3a Port0,1,2,3,4,5, GPP3b
+ *
+ * SR5650/5670/5690 RD890 chipset, read pci config space hang at POR,
+ * Disable all Pcie Bridges to work around It.
+ */
+void sr56x0_rd890_disable_pcie_bridge(void);
+
+/**
+ * Northbridge CIMX entries point
+ */
+void nb_Poweron_Init(void);
+void nb_Ht_Init(void);
+void nb_S3_Init(void);
+void nb_Early_Post_Init(void);
+void nb_Mid_Post_Init(void);
+void nb_Late_Post_Init(void);
+void nb_Pcie_Early_Init(void);
+void nb_Pcie_Late_Init(void);
+
+#endif//_RD890_EARLY_H_
+