Reviewed-by: David Wei <david....@intel.com> Thanks, David Wei
-----Original Message----- From: Yao, Jiewen Sent: Wednesday, September 21, 2016 2:45 PM To: edk2-devel@lists.01.org Cc: Wei, David <david....@intel.com>; Tian, Feng <feng.t...@intel.com>; Zeng, Star <star.z...@intel.com>; Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; Zhang, Chao B <chao.b.zh...@intel.com> Subject: [PATCH 38/45] Vlv2TbltDevicePkg/PlatformFlashAccessLib: Add instance for capsule update. Add PlatformFlashAccessLib for capsule update. Cc: David Wei <david....@intel.com> Cc: Feng Tian <feng.t...@intel.com> Cc: Star Zeng <star.z...@intel.com> Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <liming....@intel.com> Cc: Chao Zhang <chao.b.zh...@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen....@intel.com> --- Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c | 192 ++++++++++++++++++++ Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.inf | 47 +++++ 2 files changed, 239 insertions(+) diff --git a/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c new file mode 100644 index 0000000..ae8b171 --- /dev/null +++ b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.c @@ -0,0 +1,192 @@ +/** @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 FirmwareType The type of firmware. + @param FlashAddress The address of flash device to be accessed. + @param FlashAddressType The type of flash device address. + @param Buffer The pointer to the data buffer. + @param 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((EFI_D_INFO, "PerformFlashWrite - 0x%x(%x) - 0x%x\n", (UINTN)FlashAddress, (UINTN)FlashAddressType, Length)); + if (FirmwareType >= PlatformFirmwareTypeMax) { + return EFI_UNSUPPORTED; + } + if (FlashAddressType == FlashAddressTypeRelativeAddress) { + FlashAddress = FlashAddress + mInternalFdAddress; + } + + LibFvbFlashDeviceBlockLock(FlashAddress, Length, FALSE); + + // + // Erase & Write + // + Status = LibFvbFlashDeviceBlockErase((UINTN)FlashAddress, Length); + ASSERT_EFI_ERROR(Status); + if (EFI_ERROR(Status)) { + LibFvbFlashDeviceBlockLock(FlashAddress, Length, TRUE); + DEBUG((EFI_D_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((EFI_D_ERROR, "Flash write error\n")); + return Status; + } + + LibFvbFlashDeviceBlockLock(FlashAddress, Length, TRUE); + + return EFI_SUCCESS; +} + +/** + Perform microcode write opreation. + + @param FlashAddress The address of flash device to be accessed. + @param Buffer The pointer to the data buffer. + @param 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((EFI_D_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( + PlatformFirmwareTypeBios, + AlignedFlashAddress, + FlashAddressTypeAbsoluteAddress, + AlignedBuffer, + AlignedLength + ); + if ((OffsetHead != 0) || (OffsetTail != 0)) { + FreePool (AlignedBuffer); + } + return Status; +} + +/** + Platform Flash Access Lib Constructor. +**/ +EFI_STATUS +EFIAPI +PerformFlashAccessLibConstructor ( + VOID + ) +{ + mInternalFdAddress = FixedPcdGet64(PcdFlashAreaBaseAddress); + DEBUG((EFI_D_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 0000000..18c2809 --- /dev/null +++ b/Vlv2TbltDevicePkg/Feature/Capsule/Library/PlatformFlashAccessLib/PlatformFlashAccessLib.inf @@ -0,0 +1,47 @@ +## @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 + Vlv2TbltDevicePkg/PlatformPkg.dec + +[LibraryClasses] + BaseMemoryLib + PcdLib + DebugLib + FlashDeviceLib + MemoryAllocationLib + +[FixedPcd] + gPlatformModuleTokenSpaceGuid.PcdFlashAreaBaseAddress -- 2.7.4.windows.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
