From 21cde8b83227fa324f246672b1e2d58408ea6bf8 Mon Sep 17 00:00:00 2001 From: Marc Jones Date: Sun, 7 May 2017 16:47:36 -0600 Subject: 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 Reviewed-on: https://review.coreboot.org/19723 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/soc/amd/common/Kconfig | 8 + src/soc/amd/common/Makefile.inc | 7 + src/soc/amd/common/amd_late_init.c | 40 +++++ src/soc/amd/common/cache_as_ram.inc | 170 +++++++++++++++++++ src/soc/amd/common/heapmanager.c | 319 ++++++++++++++++++++++++++++++++++++ src/soc/amd/common/spi.c | 41 +++++ 6 files changed, 585 insertions(+) create mode 100644 src/soc/amd/common/amd_late_init.c create mode 100644 src/soc/amd/common/cache_as_ram.inc create mode 100644 src/soc/amd/common/heapmanager.c create mode 100644 src/soc/amd/common/spi.c (limited to 'src/soc/amd/common') 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 +#include +#include +#include +#include +#include + +#include +#include + +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 + +/* + * 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 +#include +#include +#include +#include +#include +#include + +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 +#include +#include + +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; +} -- cgit v1.2.3