soc/amd/stoneyridge: Add CPU files

Copy cpu/amd/pi/00670F00 to soc/amd/stoneyridge and
soc/amd/common.  This is the second patch in the process of
converting Stoney Ridge to soc/.

Changes:
- update Kconfig and Makefiles
- update vendorcode/amd for new soc/ path

Change-Id: I8b6b1991372c2c6a02709777a73615a86e78ac26
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/19723
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

6 files changed, 585 insertions, 0 deletions

diff --git a/src/soc/amd/common/Kconfig b/src/soc/amd/common/Kconfig
index fac3f43565..d4fe1f7523 100644
--- a/src/soc/amd/common/Kconfig
+++ b/src/soc/amd/common/Kconfig
@@ -2,3 +2,11 @@ config SOC_AMD_COMMON
 	bool
 	help
 	  common code for AMD SOCs
+
+if SOC_AMD_COMMON
+
+config SOC_AMD_PI
+	bool
+	default n
+
+endif # SOC_AMD_COMMON
diff --git a/src/soc/amd/common/Makefile.inc b/src/soc/amd/common/Makefile.inc
index 689065bd5a..1a4927efaa 100644
--- a/src/soc/amd/common/Makefile.inc
+++ b/src/soc/amd/common/Makefile.inc
@@ -1,5 +1,12 @@
 ifeq ($(CONFIG_SOC_AMD_COMMON),y)
 
+cpu_incs-y += $(src)/soc/amd/common/cache_as_ram.inc
+
+romstage-y += heapmanager.c
+
+ramstage-y += amd_late_init.c
 ramstage-y += amd_pci_util.c
+ramstage-y += heapmanager.c
+ramstage-$(CONFIG_SPI_FLASH) += spi.c
 
 endif
diff --git a/src/soc/amd/common/amd_late_init.c b/src/soc/amd/common/amd_late_init.c
new file mode 100644
index 0000000000..d9a5b43743
--- /dev/null
+++ b/src/soc/amd/common/amd_late_init.c
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#include <arch/acpi.h>
+#include <bootstate.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci_def.h>
+#include <device/pci_ops.h>
+
+#include <northbridge/amd/pi/agesawrapper.h>
+#include <northbridge/amd/pi/agesawrapper_call.h>
+
+static void agesawrapper_post_device(void *unused)
+{
+	if (acpi_is_wakeup_s3())
+		return;
+
+	AGESAWRAPPER(amdinitlate);
+
+	if (!acpi_s3_resume_allowed())
+		return;
+
+	AGESAWRAPPER(amdS3Save);
+}
+
+BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT,
+			agesawrapper_post_device, NULL);
diff --git a/src/soc/amd/common/cache_as_ram.inc b/src/soc/amd/common/cache_as_ram.inc
new file mode 100644
index 0000000000..c0a69ec74a
--- /dev/null
+++ b/src/soc/amd/common/cache_as_ram.inc
@@ -0,0 +1,170 @@
+/*
+ * 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.
+ */
+
+/******************************************************************************
+ * AMD Generic Encapsulated Software Architecture
+ *
+ * $Workfile:: cache_as_ram.inc
+ *
+ * Description: cache_as_ram.inc - AGESA Module Entry Point for GCC complier
+ *
+ ******************************************************************************
+ */
+
+#include "gcccar.inc"
+#include <cpu/x86/cache.h>
+
+/*
+ * XMM map:
+ *   xmm0: BIST
+ *   xmm1: backup ebx -- cpu_init_detected
+ */
+
+.code32
+.globl cache_as_ram_setup, disable_cache_as_ram, cache_as_ram_setup_out
+
+cache_as_ram_setup:
+
+  post_code(0xa0)
+
+  /* enable SSE2 128bit instructions */
+  /* Turn on OSFXSR [BIT9] and OSXMMEXCPT [BIT10] onto CR4 register */
+
+  movl %cr4, %eax
+  orl $(3<<9), %eax
+  movl %eax, %cr4
+
+  /* Get the cpu_init_detected */
+  mov $1, %eax
+  cpuid
+  shr $24, %ebx
+
+  /* Save the BIST result */
+  cvtsi2sd  %ebp, %xmm0
+
+  /* for normal part %ebx already contain cpu_init_detected from fallback call */
+
+  /* Save the cpu_init_detected */
+  cvtsi2sd  %ebx, %xmm1
+
+  post_code(0xa1)
+
+  AMD_ENABLE_STACK
+
+  /* Align the stack. */
+  and     $0xFFFFFFF0, %esp
+
+#ifdef __x86_64__
+  /* switch to 64 bit long mode */
+  mov     %esi, %ecx
+  add     $0, %ecx # core number
+  xor     %eax, %eax
+  lea     (0x1000+0x23)(%ecx), %edi
+  mov     %edi, (%ecx)
+  mov     %eax, 4(%ecx)
+
+  lea     0x1000(%ecx), %edi
+  movl    $0x000000e3, 0x00(%edi)
+  movl    %eax, 0x04(%edi)
+  movl    $0x400000e3, 0x08(%edi)
+  movl    %eax, 0x0c(%edi)
+  movl    $0x800000e3, 0x10(%edi)
+  movl    %eax, 0x14(%edi)
+  movl    $0xc00000e3, 0x18(%edi)
+  movl    %eax, 0x1c(%edi)
+
+  # load ROM based identity mapped page tables
+  mov     %ecx, %eax
+  mov     %eax, %cr3
+
+  # enable PAE
+  mov     %cr4, %eax
+  bts     $5, %eax
+  mov     %eax, %cr4
+
+  # enable long mode
+  mov     $0xC0000080, %ecx
+  rdmsr
+  bts     $8, %eax
+  wrmsr
+
+  # enable paging
+  mov     %cr0, %eax
+  bts     $31, %eax
+  mov     %eax, %cr0
+
+  # use call far to switch to 64-bit code segment
+  ljmp $0x18, $1f
+1:
+  /* Pass the cpu_init_detected */
+  cvtsd2si        %xmm1, %esi
+
+  /* Pass the BIST result */
+  cvtsd2si        %xmm0, %edi
+
+
+  .code64
+  call    cache_as_ram_main
+  .code32
+
+#else
+
+  /* Restore the BIST result */
+  cvtsd2si  %xmm0, %edx
+
+  /* Restore the  cpu_init_detected */
+  cvtsd2si  %xmm1, %ebx
+
+  /* Must maintain 16-byte stack alignment here. */
+  pushl $0x0
+  pushl $0x0
+  pushl %ebx  /* init detected */
+  pushl %edx  /* bist */
+  call  cache_as_ram_main
+#endif
+
+  /* Should never see this postcode */
+  post_code(0xaf)
+stop:
+  jmp stop
+
+disable_cache_as_ram:
+  /* Save return stack */
+  movd 0(%esp), %xmm1
+  movd %esp, %xmm0
+
+  /* Disable cache */
+  movl	%cr0, %eax
+  orl	$CR0_CacheDisable, %eax
+  movl	%eax, %cr0
+
+  AMD_DISABLE_STACK
+
+  /* enable cache */
+  movl %cr0, %eax
+  andl $0x9fffffff, %eax
+  movl %eax, %cr0
+  xorl %eax, %eax
+
+  /* Restore the return stack */
+  wbinvd
+  movd %xmm0, %esp
+  movd %xmm1, (%esp)
+  ret
+
+cache_as_ram_setup_out:
+#ifdef __x86_64__
+.code64
+#endif
diff --git a/src/soc/amd/common/heapmanager.c b/src/soc/amd/common/heapmanager.c
new file mode 100644
index 0000000000..b733fe881e
--- /dev/null
+++ b/src/soc/amd/common/heapmanager.c
@@ -0,0 +1,319 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * 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.
+ */
+
+
+#include <AGESA.h>
+#include <amdlib.h>
+#include <arch/acpi.h>
+#include <BiosCallOuts.h>
+#include <cbmem.h>
+#include <heapManager.h>
+#include <string.h>
+
+UINT32 GetHeapBase(AMD_CONFIG_PARAMS *StdHeader)
+{
+	UINT32 heap = BIOS_HEAP_START_ADDRESS;
+
+	if (acpi_is_wakeup_s3())
+		heap = (UINT32) cbmem_find(CBMEM_ID_RESUME_SCRATCH);
+
+	return heap;
+}
+
+void EmptyHeap(void)
+{
+	void *BiosManagerPtr = (void *) GetHeapBase(NULL);
+	memset(BiosManagerPtr, 0, BIOS_HEAP_SIZE);
+}
+
+AGESA_STATUS agesa_AllocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+	UINT32              AvailableHeapSize;
+	UINT8               *BiosHeapBaseAddr;
+	UINT32              CurrNodeOffset;
+	UINT32              PrevNodeOffset;
+	UINT32              FreedNodeOffset;
+	UINT32              BestFitNodeOffset;
+	UINT32              BestFitPrevNodeOffset;
+	UINT32              NextFreeOffset;
+	BIOS_BUFFER_NODE   *CurrNodePtr;
+	BIOS_BUFFER_NODE   *FreedNodePtr;
+	BIOS_BUFFER_NODE   *BestFitNodePtr;
+	BIOS_BUFFER_NODE   *BestFitPrevNodePtr;
+	BIOS_BUFFER_NODE   *NextFreePtr;
+	BIOS_HEAP_MANAGER  *BiosHeapBasePtr;
+	AGESA_BUFFER_PARAMS *AllocParams;
+
+	AllocParams = ((AGESA_BUFFER_PARAMS *) ConfigPtr);
+	AllocParams->BufferPointer = NULL;
+
+	AvailableHeapSize = BIOS_HEAP_SIZE - sizeof(BIOS_HEAP_MANAGER);
+	BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+	BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+	if (BiosHeapBasePtr->StartOfAllocatedNodes == 0) {
+		/* First allocation */
+		CurrNodeOffset = sizeof(BIOS_HEAP_MANAGER);
+		CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+		CurrNodePtr->BufferHandle = AllocParams->BufferHandle;
+		CurrNodePtr->BufferSize = AllocParams->BufferLength;
+		CurrNodePtr->NextNodeOffset = 0;
+		AllocParams->BufferPointer = (UINT8 *) CurrNodePtr + sizeof(BIOS_BUFFER_NODE);
+
+		/* Update the remaining free space */
+		FreedNodeOffset = CurrNodeOffset + CurrNodePtr->BufferSize + sizeof(BIOS_BUFFER_NODE);
+		FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+		FreedNodePtr->BufferSize = AvailableHeapSize - sizeof(BIOS_BUFFER_NODE) - CurrNodePtr->BufferSize;
+		FreedNodePtr->NextNodeOffset = 0;
+
+		/* Update the offsets for Allocated and Freed nodes */
+		BiosHeapBasePtr->StartOfAllocatedNodes = CurrNodeOffset;
+		BiosHeapBasePtr->StartOfFreedNodes = FreedNodeOffset;
+	} else {
+		/* Find out whether BufferHandle has been allocated on the heap.
+		 * If it has, return AGESA_BOUNDS_CHK.
+		 */
+		CurrNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+		CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+
+		while (CurrNodeOffset != 0) {
+			CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+			if (CurrNodePtr->BufferHandle == AllocParams->BufferHandle) {
+				return AGESA_BOUNDS_CHK;
+			}
+			CurrNodeOffset = CurrNodePtr->NextNodeOffset;
+			/* If BufferHandle has not been allocated on the heap, CurrNodePtr here points
+			 * to the end of the allocated nodes list.
+			 */
+		}
+		/* Find the node that best fits the requested buffer size */
+		FreedNodeOffset = BiosHeapBasePtr->StartOfFreedNodes;
+		PrevNodeOffset = FreedNodeOffset;
+		BestFitNodeOffset = 0;
+		BestFitPrevNodeOffset = 0;
+		while (FreedNodeOffset != 0) {
+			FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+			if (FreedNodePtr->BufferSize >= (AllocParams->BufferLength + sizeof(BIOS_BUFFER_NODE))) {
+				if (BestFitNodeOffset == 0) {
+					/* First node that fits the requested buffer size */
+					BestFitNodeOffset = FreedNodeOffset;
+					BestFitPrevNodeOffset = PrevNodeOffset;
+				} else {
+					/* Find out whether current node is a better fit than the previous nodes */
+					BestFitNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitNodeOffset);
+					if (BestFitNodePtr->BufferSize > FreedNodePtr->BufferSize) {
+						BestFitNodeOffset = FreedNodeOffset;
+						BestFitPrevNodeOffset = PrevNodeOffset;
+					}
+				}
+			}
+			PrevNodeOffset = FreedNodeOffset;
+			FreedNodeOffset = FreedNodePtr->NextNodeOffset;
+		} /* end of while loop */
+
+		if (BestFitNodeOffset == 0) {
+			/* If we could not find a node that fits the requested buffer
+			 * size, return AGESA_BOUNDS_CHK.
+			 */
+			return AGESA_BOUNDS_CHK;
+		} else {
+			BestFitNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitNodeOffset);
+			BestFitPrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitPrevNodeOffset);
+
+			/* If BestFitNode is larger than the requested buffer, fragment the node further */
+			if (BestFitNodePtr->BufferSize > (AllocParams->BufferLength + sizeof(BIOS_BUFFER_NODE))) {
+				NextFreeOffset = BestFitNodeOffset + AllocParams->BufferLength + sizeof(BIOS_BUFFER_NODE);
+
+				NextFreePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextFreeOffset);
+				NextFreePtr->BufferSize = BestFitNodePtr->BufferSize - (AllocParams->BufferLength + sizeof(BIOS_BUFFER_NODE));
+				NextFreePtr->NextNodeOffset = BestFitNodePtr->NextNodeOffset;
+			} else {
+				/* Otherwise, next free node is NextNodeOffset of BestFitNode */
+				NextFreeOffset = BestFitNodePtr->NextNodeOffset;
+			}
+
+			/* If BestFitNode is the first buffer in the list, then update
+			 * StartOfFreedNodes to reflect the new free node.
+			 */
+			if (BestFitNodeOffset == BiosHeapBasePtr->StartOfFreedNodes) {
+				BiosHeapBasePtr->StartOfFreedNodes = NextFreeOffset;
+			} else {
+				BestFitPrevNodePtr->NextNodeOffset = NextFreeOffset;
+			}
+
+			/* Add BestFitNode to the list of Allocated nodes */
+			CurrNodePtr->NextNodeOffset = BestFitNodeOffset;
+			BestFitNodePtr->BufferSize = AllocParams->BufferLength;
+			BestFitNodePtr->BufferHandle = AllocParams->BufferHandle;
+			BestFitNodePtr->NextNodeOffset = 0;
+
+			/* Remove BestFitNode from list of Freed nodes */
+			AllocParams->BufferPointer = (UINT8 *) BestFitNodePtr + sizeof(BIOS_BUFFER_NODE);
+		}
+	}
+
+	return AGESA_SUCCESS;
+}
+
+AGESA_STATUS agesa_DeallocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+
+	UINT8               *BiosHeapBaseAddr;
+	UINT32              AllocNodeOffset;
+	UINT32              PrevNodeOffset;
+	UINT32              NextNodeOffset;
+	UINT32              FreedNodeOffset;
+	UINT32              EndNodeOffset;
+	BIOS_BUFFER_NODE   *AllocNodePtr;
+	BIOS_BUFFER_NODE   *PrevNodePtr;
+	BIOS_BUFFER_NODE   *FreedNodePtr;
+	BIOS_BUFFER_NODE   *NextNodePtr;
+	BIOS_HEAP_MANAGER  *BiosHeapBasePtr;
+	AGESA_BUFFER_PARAMS *AllocParams;
+
+	AllocParams = (AGESA_BUFFER_PARAMS *) ConfigPtr;
+
+	BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+	BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+	/* Find target node to deallocate in list of allocated nodes.
+	 * Return AGESA_BOUNDS_CHK if the BufferHandle is not found.
+	 */
+	AllocNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+	AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+	PrevNodeOffset = AllocNodeOffset;
+
+	while (AllocNodePtr->BufferHandle !=  AllocParams->BufferHandle) {
+		if (AllocNodePtr->NextNodeOffset == 0) {
+			return AGESA_BOUNDS_CHK;
+		}
+		PrevNodeOffset = AllocNodeOffset;
+		AllocNodeOffset = AllocNodePtr->NextNodeOffset;
+		AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+	}
+
+	/* Remove target node from list of allocated nodes */
+	PrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + PrevNodeOffset);
+	PrevNodePtr->NextNodeOffset = AllocNodePtr->NextNodeOffset;
+
+	/* Zero out the buffer, and clear the BufferHandle */
+	LibAmdMemFill ((UINT8 *)AllocNodePtr + sizeof(BIOS_BUFFER_NODE), 0, AllocNodePtr->BufferSize, &(AllocParams->StdHeader));
+	AllocNodePtr->BufferHandle = 0;
+	AllocNodePtr->BufferSize += sizeof(BIOS_BUFFER_NODE);
+
+	/* Add deallocated node in order to the list of freed nodes */
+	FreedNodeOffset = BiosHeapBasePtr->StartOfFreedNodes;
+	FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+
+	EndNodeOffset = AllocNodeOffset + AllocNodePtr->BufferSize;
+
+	if (AllocNodeOffset < FreedNodeOffset) {
+		/* Add to the start of the freed list */
+		if (EndNodeOffset == FreedNodeOffset) {
+			/* If the freed node is adjacent to the first node in the list, concatenate both nodes */
+			AllocNodePtr->BufferSize += FreedNodePtr->BufferSize;
+			AllocNodePtr->NextNodeOffset = FreedNodePtr->NextNodeOffset;
+
+			/* Clear the BufferSize and NextNodeOffset of the previous first node */
+			FreedNodePtr->BufferSize = 0;
+			FreedNodePtr->NextNodeOffset = 0;
+
+		} else {
+			/* Otherwise, add freed node to the start of the list
+			 * Update NextNodeOffset and BufferSize to include the
+			 * size of BIOS_BUFFER_NODE.
+			 */
+			AllocNodePtr->NextNodeOffset = FreedNodeOffset;
+		}
+		/* Update StartOfFreedNodes to the new first node */
+		BiosHeapBasePtr->StartOfFreedNodes = AllocNodeOffset;
+	} else {
+		/* Traverse list of freed nodes to find where the deallocated node
+		 * should be placed.
+		 */
+		NextNodeOffset = FreedNodeOffset;
+		NextNodePtr = FreedNodePtr;
+		while (AllocNodeOffset > NextNodeOffset) {
+			PrevNodeOffset = NextNodeOffset;
+			if (NextNodePtr->NextNodeOffset == 0) {
+				break;
+			}
+			NextNodeOffset = NextNodePtr->NextNodeOffset;
+			NextNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextNodeOffset);
+		}
+
+		/* If deallocated node is adjacent to the next node,
+		 * concatenate both nodes.
+		 */
+		if (NextNodeOffset == EndNodeOffset) {
+			NextNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextNodeOffset);
+			AllocNodePtr->BufferSize += NextNodePtr->BufferSize;
+			AllocNodePtr->NextNodeOffset = NextNodePtr->NextNodeOffset;
+
+			NextNodePtr->BufferSize = 0;
+			NextNodePtr->NextNodeOffset = 0;
+		} else {
+			/*AllocNodePtr->NextNodeOffset = FreedNodePtr->NextNodeOffset; */
+			AllocNodePtr->NextNodeOffset = NextNodeOffset;
+		}
+		/* If deallocated node is adjacent to the previous node,
+		 * concatenate both nodes.
+		 */
+		PrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + PrevNodeOffset);
+		EndNodeOffset = PrevNodeOffset + PrevNodePtr->BufferSize;
+		if (AllocNodeOffset == EndNodeOffset) {
+			PrevNodePtr->NextNodeOffset = AllocNodePtr->NextNodeOffset;
+			PrevNodePtr->BufferSize += AllocNodePtr->BufferSize;
+
+			AllocNodePtr->BufferSize = 0;
+			AllocNodePtr->NextNodeOffset = 0;
+		} else {
+			PrevNodePtr->NextNodeOffset = AllocNodeOffset;
+		}
+	}
+	return AGESA_SUCCESS;
+}
+
+AGESA_STATUS agesa_LocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+	UINT32              AllocNodeOffset;
+	UINT8               *BiosHeapBaseAddr;
+	BIOS_BUFFER_NODE   *AllocNodePtr;
+	BIOS_HEAP_MANAGER  *BiosHeapBasePtr;
+	AGESA_BUFFER_PARAMS *AllocParams;
+
+	AllocParams = (AGESA_BUFFER_PARAMS *) ConfigPtr;
+
+	BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+	BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+	AllocNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+	AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+
+	while (AllocParams->BufferHandle != AllocNodePtr->BufferHandle) {
+		if (AllocNodePtr->NextNodeOffset == 0) {
+			AllocParams->BufferPointer = NULL;
+			AllocParams->BufferLength = 0;
+			return AGESA_BOUNDS_CHK;
+		} else {
+			AllocNodeOffset = AllocNodePtr->NextNodeOffset;
+			AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+		}
+	}
+
+	AllocParams->BufferPointer = (UINT8 *) ((UINT8 *) AllocNodePtr + sizeof(BIOS_BUFFER_NODE));
+	AllocParams->BufferLength = AllocNodePtr->BufferSize;
+
+	return AGESA_SUCCESS;
+
+}
diff --git a/src/soc/amd/common/spi.c b/src/soc/amd/common/spi.c
new file mode 100644
index 0000000000..ce6deef505
--- /dev/null
+++ b/src/soc/amd/common/spi.c
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+
+#include <console/console.h>
+#include <spi-generic.h>
+#include <spi_flash.h>
+
+void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len)
+{
+	struct spi_flash *flash;
+
+	spi_init();
+	flash = spi_flash_probe(0, 0);
+	if (!flash) {
+		printk(BIOS_DEBUG, "Could not find SPI device\n");
+		/* Dont make flow stop. */
+		return;
+	}
+
+	spi_flash_volatile_group_begin(flash);
+
+	spi_flash_erase(flash, pos, size);
+	spi_flash_write(flash, pos, sizeof(len), &len);
+	spi_flash_write(flash, pos + sizeof(len), len, buf);
+
+	spi_flash_volatile_group_end(flash);
+
+	return;
+}