diff options
2 files changed, 238 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c new file mode 100644 index 0000000000..efa1dca66e --- /dev/null +++ b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c @@ -0,0 +1,190 @@ +/** @file
+ Platform Flash Access library.
+
+ Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PlatformFlashAccessLib.h>
+#include <Library/FlashDeviceLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#define SECTOR_SIZE_64KB 0x10000 // Common 64kBytes sector size
+#define ALINGED_SIZE SECTOR_SIZE_64KB
+
+STATIC EFI_PHYSICAL_ADDRESS mInternalFdAddress;
+
+/**
+ Perform flash write opreation.
+
+ @param[in] FirmwareType The type of firmware.
+ @param[in] FlashAddress The address of flash device to be accessed.
+ @param[in] FlashAddressType The type of flash device address.
+ @param[in] Buffer The pointer to the data buffer.
+ @param[in] Length The length of data buffer in bytes.
+
+ @retval EFI_SUCCESS The operation returns successfully.
+ @retval EFI_WRITE_PROTECTED The flash device is read only.
+ @retval EFI_UNSUPPORTED The flash device access is unsupported.
+ @retval EFI_INVALID_PARAMETER The input parameter is not valid.
+**/
+EFI_STATUS
+EFIAPI
+PerformFlashWrite (
+ IN PLATFORM_FIRMWARE_TYPE FirmwareType,
+ IN EFI_PHYSICAL_ADDRESS FlashAddress,
+ IN FLASH_ADDRESS_TYPE FlashAddressType,
+ IN VOID *Buffer,
+ IN UINTN Length
+ )
+{
+ EFI_STATUS Status;
+
+ DEBUG((DEBUG_INFO, "PerformFlashWrite - 0x%x(%x) - 0x%x\n", (UINTN)FlashAddress, (UINTN)FlashAddressType, Length));
+ if (FlashAddressType == FlashAddressTypeRelativeAddress) {
+ FlashAddress = FlashAddress + mInternalFdAddress;
+ }
+
+ DEBUG((DEBUG_INFO, " - 0x%x(%x) - 0x%x\n", (UINTN)FlashAddress, (UINTN)FlashAddressType, Length));
+ LibFvbFlashDeviceBlockLock(FlashAddress, Length, FALSE);
+
+ //
+ // Erase & Write
+ //
+ Status = LibFvbFlashDeviceBlockErase((UINTN)FlashAddress, Length);
+ ASSERT_EFI_ERROR(Status);
+ if (EFI_ERROR(Status)) {
+ LibFvbFlashDeviceBlockLock(FlashAddress, Length, TRUE);
+ DEBUG((DEBUG_ERROR, "Flash Erase error\n"));
+ return Status;
+ }
+
+ Status = LibFvbFlashDeviceWrite((UINTN)FlashAddress, &Length, Buffer);
+ ASSERT_EFI_ERROR(Status);
+ if (EFI_ERROR(Status)) {
+ LibFvbFlashDeviceBlockLock(FlashAddress, Length, TRUE);
+ DEBUG((DEBUG_ERROR, "Flash write error\n"));
+ return Status;
+ }
+
+ LibFvbFlashDeviceBlockLock(FlashAddress, Length, TRUE);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Perform microcode write opreation.
+
+ @param[in] FlashAddress The address of flash device to be accessed.
+ @param[in] Buffer The pointer to the data buffer.
+ @param[in] Length The length of data buffer in bytes.
+
+ @retval EFI_SUCCESS The operation returns successfully.
+ @retval EFI_WRITE_PROTECTED The flash device is read only.
+ @retval EFI_UNSUPPORTED The flash device access is unsupported.
+ @retval EFI_INVALID_PARAMETER The input parameter is not valid.
+**/
+EFI_STATUS
+EFIAPI
+MicrocodeFlashWrite (
+ IN EFI_PHYSICAL_ADDRESS FlashAddress,
+ IN VOID *Buffer,
+ IN UINTN Length
+ )
+{
+ EFI_PHYSICAL_ADDRESS AlignedFlashAddress;
+ VOID *AlignedBuffer;
+ UINTN AlignedLength;
+ UINTN OffsetHead;
+ UINTN OffsetTail;
+ EFI_STATUS Status;
+
+ DEBUG((DEBUG_INFO, "MicrocodeFlashWrite - 0x%x - 0x%x\n", (UINTN)FlashAddress, Length));
+
+ //
+ // Need make buffer 64K aligned to support ERASE
+ //
+ // [Aligned] FlashAddress [Aligned]
+ // | | |
+ // V V V
+ // +--------------+========+------------+
+ // | OffsetHeader | Length | OffsetTail |
+ // +--------------+========+------------+
+ // ^
+ // |<-----------AlignedLength----------->
+ // |
+ // AlignedFlashAddress
+ //
+ OffsetHead = FlashAddress & (ALINGED_SIZE - 1);
+ OffsetTail = (FlashAddress + Length) & (ALINGED_SIZE - 1);
+ if (OffsetTail != 0) {
+ OffsetTail = ALINGED_SIZE - OffsetTail;
+ }
+
+ if ((OffsetHead != 0) || (OffsetTail != 0)) {
+ AlignedFlashAddress = FlashAddress - OffsetHead;
+ AlignedLength = Length + OffsetHead + OffsetTail;
+
+ AlignedBuffer = AllocatePool(AlignedLength);
+ if (AlignedBuffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ //
+ // Save original buffer
+ //
+ if (OffsetHead != 0) {
+ CopyMem((UINT8 *)AlignedBuffer, (VOID *)AlignedFlashAddress, OffsetHead);
+ }
+ if (OffsetTail != 0) {
+ CopyMem((UINT8 *)AlignedBuffer + OffsetHead + Length, (VOID *)(AlignedFlashAddress + OffsetHead + Length), OffsetTail);
+ }
+ //
+ // Override new buffer
+ //
+ CopyMem((UINT8 *)AlignedBuffer + OffsetHead, Buffer, Length);
+ } else {
+ AlignedFlashAddress = FlashAddress;
+ AlignedBuffer = Buffer;
+ AlignedLength = Length;
+ }
+
+ Status = PerformFlashWrite(
+ PlatformFirmwareTypeSystemFirmware,
+ AlignedFlashAddress,
+ FlashAddressTypeAbsoluteAddress,
+ AlignedBuffer,
+ AlignedLength
+ );
+ if ((OffsetHead != 0) || (OffsetTail != 0)) {
+ FreePool (AlignedBuffer);
+ }
+ return Status;
+}
+
+/**
+ Platform Flash Access Lib Constructor.
+**/
+EFI_STATUS
+EFIAPI
+PerformFlashAccessLibConstructor (
+ VOID
+ )
+{
+ mInternalFdAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)PcdGet32(PcdFlashAreaBaseAddress);
+ DEBUG((DEBUG_INFO, "PcdFlashAreaBaseAddress - 0x%x\n", mInternalFdAddress));
+
+ return EFI_SUCCESS;
+}
diff --git a/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.inf b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.inf new file mode 100644 index 0000000000..17ab38e27f --- /dev/null +++ b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.inf @@ -0,0 +1,48 @@ +## @file
+# Platform Flash Access library.
+#
+# Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PlatformFlashAccessLib
+ FILE_GUID = 31CF9CEC-DA4E-4505-AA20-33364A291A95
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PlatformFlashAccessLib
+ LIBRARY_CLASS = MicrocodeFlashAccessLib
+ CONSTRUCTOR = PerformFlashAccessLibConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ PlatformFlashAccessLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ SignedCapsulePkg/SignedCapsulePkg.dec
+ Vlv2TbltDevicePkg/PlatformPkg.dec
+
+[LibraryClasses]
+ BaseMemoryLib
+ PcdLib
+ DebugLib
+ FlashDeviceLib
+ MemoryAllocationLib
+
+[Pcd]
+ gPlatformModuleTokenSpaceGuid.PcdFlashAreaBaseAddress
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