The FlashFvbDxe provided the fvb protocol,
which requested by the flash operators.
v3:
Optimized the codes to conform to specifications.
Signed-off-by: Ling Jia <jial...@phytium.com.cn>
Reviewed-by: Leif Lindholm <l...@nuviainc.com>
---
Platform/Phytium/DurianPkg/DurianPkg.dsc | 1 +
Platform/Phytium/DurianPkg/DurianPkg.fdf | 1 +
Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf | 61 +
Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.h | 104 ++
Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.c | 1304
++++++++++++++++++++
5 files changed, 1471 insertions(+)
diff --git a/Platform/Phytium/DurianPkg/DurianPkg.dsc
b/Platform/Phytium/DurianPkg/DurianPkg.dsc
index 1c4705144151..99034365d38f 100644
--- a/Platform/Phytium/DurianPkg/DurianPkg.dsc
+++ b/Platform/Phytium/DurianPkg/DurianPkg.dsc
@@ -253,6 +253,7 @@ [Components.common]
# NOR Flash driver
#
Silicon/Phytium/FT2000-4Pkg/Drivers/SpiNorFlashDxe/SpiNorFlashDxe.inf
+ Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf
#
# Usb Support
diff --git a/Platform/Phytium/DurianPkg/DurianPkg.fdf
b/Platform/Phytium/DurianPkg/DurianPkg.fdf
index 831f7a682837..67458458ddd5 100644
--- a/Platform/Phytium/DurianPkg/DurianPkg.fdf
+++ b/Platform/Phytium/DurianPkg/DurianPkg.fdf
@@ -103,6 +103,7 @@ [FV.FvMain]
INF ArmPkg/Drivers/ArmGic/ArmGicDxe.inf
INF ArmPkg/Drivers/CpuDxe/CpuDxe.inf
+ INF Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf
INF ArmPkg/Drivers/TimerDxe/TimerDxe.inf
INF ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.inf
diff --git
a/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf
b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf
new file mode 100644
index 000000000000..ff23721d6e41
--- /dev/null
+++ b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.inf
@@ -0,0 +1,61 @@
+#/** @file
+# Phytium NorFlash Fvb Drivers.
+#
+# Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
+# Copyright (C) 2020, Phytium Technology Co, Ltd. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x0001001b
+ BASE_NAME = FlashFvbDxe
+ FILE_GUID = b8923820-3e7c-11eb-b12c-17525e90ecc8
+ MODULE_TYPE = DXE_RUNTIME_DRIVER
+ VERSION_STRING = 0.1
+ ENTRY_POINT = FvbEntryPoint
+
+[Sources]
+ FlashFvbDxe.c
+ FlashFvbDxe.h
+
+[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ Silicon/Phytium/PhytiumCommonPkg/PhytiumCommonPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ DxeServicesTableLib
+ HobLib
+ MemoryAllocationLib
+ UefiBootServicesTableLib
+ UefiRuntimeLib
+ UefiDriverEntryPoint
+
+[Guids]
+ gEfiAuthenticatedVariableGuid
+ gEfiEventVirtualAddressChangeGuid
+ gEfiSystemNvDataFvGuid
+ gEfiVariableGuid
+
+[Protocols]
+ gEfiDevicePathProtocolGuid
+ gEfiFirmwareVolumeBlockProtocolGuid
+ gSpiNorFlashProtocolGuid
+
+[Pcd.common]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase64
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
+ gPhytiumPlatformTokenSpaceGuid.PcdSpiFlashBase
+ gPhytiumPlatformTokenSpaceGuid.PcdSpiFlashSize
+
+[Depex]
+ gSpiNorFlashProtocolGuid
diff --git a/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.h
b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.h
new file mode 100644
index 000000000000..e63ff9f220f6
--- /dev/null
+++ b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.h
@@ -0,0 +1,104 @@
+/** @file
+ Phytium NorFlash Fvb Drivers Header.
+
+ Copyright (C) 2020, Phytium Technology Co Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#ifndef FVB_FLASH_DXE_H_
+#define FVB_FLASH_DXE_H_
+
+#include <Protocol/BlockIo.h>
+#include <Protocol/FirmwareVolumeBlock.h>
+#include <Protocol/SpiNorFlashProtocol.h>
+
+#define GET_DATA_OFFSET(BaseAddr, Lba, LbaSize) ((BaseAddr) + (UINTN)((Lba) *
(LbaSize)))
+#define FVB_FLASH_SIGNATURE SIGNATURE_32('S', 'N', 'O',
'R')
+#define INSTANCE_FROM_FVB_THIS(a) CR(a, FT_FVB_DEVICE,
FvbProtocol, FVB_FLASH_SIGNATURE)
+
+typedef struct _FT_FVB_DEVICE FT_FVB_DEVICE;
+
+#define NOR_FLASH_ERASE_RETRY 10
+
+typedef struct {
+ VENDOR_DEVICE_PATH Vendor;
+ EFI_DEVICE_PATH_PROTOCOL End;
+ } FT_FVB_DEVICE_PATH;
+
+struct _FT_FVB_DEVICE {
+ UINT32 Signature;
+ EFI_HANDLE Handle;
+
+ UINTN DeviceBaseAddress;
+ UINTN RegionBaseAddress;
+ UINTN Size;
+ EFI_LBA StartLba;
+ EFI_BLOCK_IO_MEDIA Media;
+
+ EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL FvbProtocol;
+
+ FT_FVB_DEVICE_PATH DevicePath;
+ EFI_NORFLASH_DRV_PROTOCOL *SpiFlashProtocol;
+ VOID *ShadowBuffer;
+ UINTN FvbSize;
+ };
+
+EFI_STATUS
+EFIAPI
+FvbGetAttributes (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ OUT EFI_FVB_ATTRIBUTES_2 * Attributes
+ );
+
+EFI_STATUS
+EFIAPI
+FvbSetAttributes (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ IN OUT EFI_FVB_ATTRIBUTES_2 * Attributes
+ );
+
+EFI_STATUS
+EFIAPI
+FvbGetPhysicalAddress (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ OUT EFI_PHYSICAL_ADDRESS * Address
+ );
+
+EFI_STATUS
+EFIAPI
+FvbGetBlockSize (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ IN EFI_LBA Lba,
+ OUT UINTN * BlockSize,
+ OUT UINTN * NumberOfBlocks
+ );
+
+EFI_STATUS
+EFIAPI
+FvbRead (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN OUT UINTN * NumBytes,
+ IN OUT UINT8 * Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+FvbWrite (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN OUT UINTN * NumBytes,
+ IN UINT8 * Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+FvbEraseBlocks (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL * This,
+ ...
+ );
+
+#endif // FVB_FLASH_DXE_H_
diff --git a/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.c
b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.c
new file mode 100644
index 000000000000..e9f7e566b1a0
--- /dev/null
+++ b/Silicon/Phytium/PhytiumCommonPkg/Drivers/FlashFvbDxe/FlashFvbDxe.c
@@ -0,0 +1,1304 @@
+/** @file
+ Phytium NorFlash Fvb Drivers.
+
+ Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
+ Copyright (C) 2020, Phytium Technology Co Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DxeServicesTableLib.h>
+#include <Library/HobLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeLib.h>
+#include <Guid/VariableFormat.h>
+
+#include "FlashFvbDxe.h"
+
+STATIC EFI_EVENT FvbVirtualAddrChangeEvent;
+STATIC FT_FVB_DEVICE *FvbDevice;
+STATIC UINTN mFlashNvStorageVariableBase;
+STATIC UINTN mFlashNvStorageFtwWorkingBase;
+STATIC UINTN mFlashNvStorageFtwSpareBase;
+STATIC UINT32 mFlashNvStorageVariableSize;
+STATIC UINT32 mFlashNvStorageFtwWorkingSize;
+STATIC UINT32 mFlashNvStorageFtwSpareSize;
+
+STATIC FT_FVB_DEVICE FvbFlashInstanceTemplate = {
+ FVB_FLASH_SIGNATURE, // Signature
+ NULL, // Handle ... NEED TO BE FILLED
+ 0, // DeviceBaseAddress ... NEED TO BE FILLED
+ 0, // RegionBaseAddress ... NEED TO BE FILLED
+ 0, // Size ... NEED TO BE FILLED
+ 0, // StartLba
+ {
+ 0, // MediaId ... NEED TO BE FILLED
+ FALSE, // RemovableMedia
+ TRUE, // MediaPresent
+ FALSE, // LogicalPartition
+ FALSE, // ReadOnly
+ FALSE, // WriteCaching;
+ 0, // BlockSize ... NEED TO BE FILLED
+ 4, // IoAlign
+ 0, // LastBlock ... NEED TO BE FILLED
+ 0, // LowestAlignedLba
+ 1, // LogicalBlocksPerPhysicalBlock
+ }, //Media;
+ {
+ FvbGetAttributes, // GetAttributes
+ FvbSetAttributes, // SetAttributes
+ FvbGetPhysicalAddress, // GetPhysicalAddress
+ FvbGetBlockSize, // GetBlockSize
+ FvbRead, // Read
+ FvbWrite, // Write
+ FvbEraseBlocks, // EraseBlocks
+ NULL, // ParentHandle
+ }, // FvbProtoccol;
+
+ {
+ {
+ {
+ HARDWARE_DEVICE_PATH,
+ HW_VENDOR_DP,
+ {
+ (UINT8) sizeof (VENDOR_DEVICE_PATH),
+ (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+ }
+ },
+ {
+ 0x0, 0x0, 0x0, { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }
+ }, // GUID ... NEED TO BE FILLED
+ },
+ {
+ END_DEVICE_PATH_TYPE,
+ END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ {
+ sizeof (EFI_DEVICE_PATH_PROTOCOL),
+ 0
+ }
+ }
+ }, // DevicePath
+
+ NULL, // SpiFlashProtocol ... NEED TO BE FILLED
+ NULL, // ShadowBuffer ... NEED TO BE FILLED
+ 0 // Fvb Size
+};
+
+
+/**
+ Erases a single block of flash.
+
+ @param[in] FlashInstance The poiter of the fvb device sturct.
+
+ @param[in] BlockAddress Physical address of Lba to be erased.
+
+ @retval EFI_SUCCESS The erase single block request successfully
completed.
+
+**/
+STATIC
+EFI_STATUS
+FvbFlashEraseSingleBlock (
+ IN FT_FVB_DEVICE *FlashInstance,
+ IN UINTN BlockAddress
+ )
+{
+ EFI_STATUS Status;
+ UINTN Index;
+ EFI_TPL OriginalTPL;
+
+ if ( ! EfiAtRuntime ()) {
+ OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
+ } else {
+ OriginalTPL = TPL_HIGH_LEVEL;
+ }
+
+ Index = 0;
+
+ do {
+ Status = FlashInstance->SpiFlashProtocol->EraseSingleBlock (BlockAddress);
+ Index++;
+ } while ((Index < NOR_FLASH_ERASE_RETRY) && (Status == EFI_WRITE_PROTECTED));
+
+ if (Index == NOR_FLASH_ERASE_RETRY) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "EraseSingleBlock(BlockAddress=0x%08x: BlockLocked Error (try to erase %
d times)\n",
+ BlockAddress,
+ Index
+ ));
+ }
+
+ if ( ! EfiAtRuntime ()) {
+ gBS->RestoreTPL (OriginalTPL);
+ }
+
+ return Status;
+}
+
+
+/**
+ Readed the specified number of bytes from the form the block to output
buffer.
+
+ @param[in] FlashInstance The pointer of FT_FVB_DEVICE instance.
+
+ @param[in] Lba The starting logical block index to write
to.
+
+ @param[in] Offset Offset into the block at which to begin
writing.
+
+ @param[in] BufferSizeInBytes The number of bytes to be writed.
+
+ @param[out] Buffer The pointer to a caller-allocated buffer
that
+ contains the source for the write.
+
+ @retval EFI_SUCCESS FvbFlashRead() is executed successfully.
+
+**/
+STATIC
+EFI_STATUS
+FvbFlashRead (
+ IN FT_FVB_DEVICE *FlashInstance,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN UINTN BufferSizeInBytes,
+ OUT VOID *Buffer
+ )
+{
+ UINTN Address;
+
+ Address = GET_DATA_OFFSET (
+ FlashInstance->RegionBaseAddress,
+ Lba,
+ FlashInstance->Media.BlockSize
+ ) + Offset;
+
+ if (BufferSizeInBytes == 0) {
+ return EFI_SUCCESS;
+ }
+
+ // The buffer must be valid
+ if (Buffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return FlashInstance->SpiFlashProtocol->Read (Address, Buffer,
BufferSizeInBytes);
+}
+
+
+/**
+ Write a full or portion of a block. It must not span block boundaries; that
is,
+ Offset + *NumBytes <= FlashInstance->Media.BlockSize.
+
+ @param[in] FlashInstance The pointer of FT_FVB_DEVICE instance.
+
+ @param[in] Lba The starting logical block index to write
to.
+
+ @param[in] Offset Offset into the block at which to begin
writing.
+
+ @param[in] BufferSizeInBytes The number of bytes to be writed.
+
+ @param[out] Buffer The pointer to a caller-allocated buffer
that
+ contains the source for the write.
+
+ @retval EFI_SUCCESS FvbWriteBlock() is executed successfully.
+
+ @retval EFI_BAD_BUFFER_SIZE The write spaned block boundaries.
+
+**/
+STATIC
+EFI_STATUS
+FvbWriteBlock (
+ IN FT_FVB_DEVICE *FlashInstance,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN UINTN BufferSizeInBytes,
+ IN UINT8 *Buffer
+ )
+{
+ EFI_STATUS Status;
+ UINTN BlockSize;
+ UINTN BlockAddress;
+
+ // Detect WriteDisabled state
+ if (FlashInstance->Media.ReadOnly == TRUE) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbWriteBlock: ERROR - Can not write:Device is in WriteDisabled
state.\n"
+ ));
+ // It is in WriteDisabled state, return an error right away
+ return EFI_ACCESS_DENIED;
+ }
+
+ // Cache the block size to avoid de-referencing pointers all the time
+ BlockSize = FlashInstance->Media.BlockSize;
+
+ // The write must not span block boundaries.
+ // We need to check each variable individually because adding two large
values together overflows.
+ if ((Offset >= BlockSize) ||
+ (BufferSizeInBytes > BlockSize) ||
+ ((Offset + BufferSizeInBytes) > BlockSize))
+ {
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbWriteBlock: ERROR - EFI_BAD_BUFFER_SIZE: (Offset =0x %x + NumBytes
=0x%x) > BlockSize =0x%x\n",
+ Offset,
+ BufferSizeInBytes,
+ BlockSize
+ ));
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ // We must have some bytes to write
+ if (BufferSizeInBytes == 0) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbWriteBlock: ERROR - EFI_BAD_BUFFER_SIZE: NumBytes == 0\n"
+ ));
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ // Check we did get some memory. Buffer is BlockSize.
+ if (FlashInstance->ShadowBuffer == NULL) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbWriteBlock: ERROR - ShadowBuffer is NULL!\n"
+ ));
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ // Write the word to NOR.
+ //
+ BlockAddress = GET_DATA_OFFSET (
+ FlashInstance->RegionBaseAddress,
+ Lba,
+ FlashInstance->Media.BlockSize
+ );
+
+ // Read NOR Flash data into shadow buffer
+ Status = FlashInstance->SpiFlashProtocol->Read (
+ BlockAddress,
+ FlashInstance->ShadowBuffer,
+ BlockSize
+ );
+ if (EFI_ERROR (Status)) {
+ // Return one of the pre-approved error statuses
+ return EFI_DEVICE_ERROR;
+ }
+
+ // Put the data at the appropriate location inside the buffer area
+ CopyMem (
+ (VOID *) ((UINTN)FlashInstance->ShadowBuffer + Offset),
+ Buffer,
+ BufferSizeInBytes
+ );
+
+ Status = FlashInstance->SpiFlashProtocol->EraseSingleBlock (BlockAddress);
+ if (EFI_ERROR (Status)) {
+ // Return one of the pre-approved error statuses
+ return EFI_DEVICE_ERROR;
+ }
+
+ // Write the modified buffer back to the NorFlash
+ Status = FlashInstance->SpiFlashProtocol->Write (BlockAddress,
+ FlashInstance->ShadowBuffer,
+ BlockSize
+ );
+ if (EFI_ERROR (Status)) {
+ // Return one of the pre-approved error statuses
+ return EFI_DEVICE_ERROR;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Writes the specified number of bytes from the input buffer to the block.
+
+ @param[in] FlashInstance The pointer of FT_FVB_DEVICE instance.
+
+ @param[in] Lba The starting logical block index to write to.
+
+ @param[in] Offset Offset into the block at which to begin
writing.
+
+ @param[in] BufferSizeInBytes The number of bytes to be writed.
+
+ @param[in] Buffer The pointer to a caller-allocated buffer that
+ contains the source for the write.
+
+ @retval EFI_SUCCESS FvbFlashWrite() is executed successfully.
+
+ @retval EFI_WRITE_PROTECTED Flash state is in the WriteDisabled state.
+
+ @retval EFI_INVALID_PARAMETER The pointer of Buffer is NULL.
+
+**/
+STATIC
+EFI_STATUS
+FvbFlashWrite (
+ IN FT_FVB_DEVICE *FlashInstance,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN UINTN BufferSizeInBytes,
+ IN VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+ UINT32 BlockOffset;
+ UINTN RemainingBytes;
+ UINTN WriteSize;
+
+ if (FlashInstance->Media.ReadOnly == TRUE) {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ if (BufferSizeInBytes == 0) {
+ return EFI_SUCCESS;
+ }
+
+ if (Buffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ BlockSize = FlashInstance->Media.BlockSize;
+ BlockOffset = Offset;
+ RemainingBytes = BufferSizeInBytes;
+
+ // The write must not span block boundaries.
+ // We need to check each variable individually because adding
+ // two large values together overflows.
+ if (Offset >= BlockSize) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbFlashWrite: ERROR - EFI_BAD_BUFFER_SIZE: Offset =0x%x > BlockSize
=0x%x\n",
+ Offset,
+ BlockSize
+ ));
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ // We must have some bytes to read
+ // Write either all the remaining bytes, or the number of bytes that bring
+ // us up to a block boundary, whichever is less.
+ // (DiskOffset | (BlockSize - 1)) + 1) rounds DiskOffset up to the next
+ // block boundary (even if it is already on one).
+ WriteSize = MIN (RemainingBytes, BlockSize - BlockOffset);
+
+ do {
+ Status = FvbWriteBlock (
+ FlashInstance,
+ Lba,
+ BlockOffset,
+ WriteSize,
+ Buffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ // Now continue writing either all the remaining bytes or single blocks.
+ RemainingBytes -= WriteSize;
+ Buffer = (UINT8 *) Buffer + WriteSize;
+ Lba++;
+ BlockOffset = 0;
+ WriteSize = MIN (RemainingBytes, BlockSize);
+ } while (RemainingBytes);
+
+ return Status;
+}
+
+
+/**
+ Initialises the FV Header and Variable Store Header
+ to support variable operations.
+
+ @param[in] Ptr Location to initialise the headers.
+
+ @retval EFI_SUCCESS FvbInitFvAndVariableStoreHeaders()
+ is executed successfully.
+
+**/
+STATIC
+EFI_STATUS
+FvbInitFvAndVariableStoreHeaders (
+ IN FT_FVB_DEVICE *FlashInstance
+ )
+{
+ EFI_STATUS Status;
+ VOID * Headers;
+ UINTN HeadersLength;
+ UINT32 TempAttributes;
+ EFI_FIRMWARE_VOLUME_HEADER *FirmwareVolumeHeader;
+ VARIABLE_STORE_HEADER *VariableStoreHeader;
+
+ HeadersLength = sizeof (EFI_FIRMWARE_VOLUME_HEADER) +
+ sizeof (EFI_FV_BLOCK_MAP_ENTRY) +
+ sizeof (VARIABLE_STORE_HEADER);
+
+ Headers = AllocateZeroPool (HeadersLength);
+
+ // FirmwareVolumeHeader->FvLength is declared to have the Variable area
+ // AND the FTW working area AND the FTW Spare contiguous.
+ ASSERT (mFlashNvStorageVariableBase + mFlashNvStorageVariableSize ==
mFlashNvStorageFtwWorkingBase);
+ ASSERT (mFlashNvStorageFtwWorkingBase + mFlashNvStorageFtwWorkingSize ==
mFlashNvStorageFtwSpareBase);
+
+ // Check if the size of the area is at least one block size
+ ASSERT ((mFlashNvStorageVariableSize > 0) && (mFlashNvStorageVariableSize /
FlashInstance->Media.BlockSize > 0));
+ ASSERT ((mFlashNvStorageFtwWorkingSize > 0) &&
(mFlashNvStorageFtwWorkingSize / FlashInstance->Media.BlockSize > 0));
+ ASSERT ((mFlashNvStorageFtwSpareSize > 0) && (mFlashNvStorageFtwSpareSize /
FlashInstance->Media.BlockSize > 0));
+
+ // Ensure the Variable area Base Addresses are aligned on a block size
boundaries
+ ASSERT (mFlashNvStorageVariableBase % FlashInstance->Media.BlockSize == 0);
+ ASSERT (mFlashNvStorageFtwWorkingBase % FlashInstance->Media.BlockSize == 0);
+ ASSERT (mFlashNvStorageFtwSpareBase % FlashInstance->Media.BlockSize == 0);
+
+ //
+ // EFI_FIRMWARE_VOLUME_HEADER
+ //
+ FirmwareVolumeHeader = (EFI_FIRMWARE_VOLUME_HEADER *)Headers;
+ CopyGuid (&FirmwareVolumeHeader->FileSystemGuid, &gEfiSystemNvDataFvGuid);
+ FirmwareVolumeHeader->FvLength = FlashInstance->FvbSize;
+
+ TempAttributes = (
+ EFI_FVB2_READ_ENABLED_CAP | // Reads may be enabled
+ EFI_FVB2_READ_STATUS | // Reads are currently
enabled
+ EFI_FVB2_STICKY_WRITE | // A block erase is
required to
+ EFI_FVB2_MEMORY_MAPPED | // It is memory mapped
+ EFI_FVB2_ERASE_POLARITY | // After erasure all bits
take this value
+ EFI_FVB2_WRITE_STATUS | // Writes are currently
enabled
+ EFI_FVB2_WRITE_ENABLED_CAP // Writes may be enabled
+ );
+
+ FirmwareVolumeHeader->Signature = EFI_FVH_SIGNATURE;
+ FirmwareVolumeHeader->Attributes = (EFI_FVB_ATTRIBUTES_2) TempAttributes;
+
+ FirmwareVolumeHeader->HeaderLength = sizeof (EFI_FIRMWARE_VOLUME_HEADER) +
sizeof (EFI_FV_BLOCK_MAP_ENTRY);
+ FirmwareVolumeHeader->Revision = EFI_FVH_REVISION;
+ FirmwareVolumeHeader->BlockMap[0].NumBlocks = FlashInstance->Media.LastBlock
+ 1;
+ FirmwareVolumeHeader->BlockMap[0].Length = FlashInstance->Media.BlockSize;
+ FirmwareVolumeHeader->BlockMap[1].NumBlocks = 0;
+ FirmwareVolumeHeader->BlockMap[1].Length = 0;
+ FirmwareVolumeHeader->Checksum = CalculateCheckSum16 (
+ (UINT16 *)FirmwareVolumeHeader,
+ FirmwareVolumeHeader->HeaderLength
+ );
+
+ //
+ // VARIABLE_STORE_HEADER
+ //
+ VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN)Headers +
FirmwareVolumeHeader->HeaderLength);
+ CopyGuid (&VariableStoreHeader->Signature, &gEfiAuthenticatedVariableGuid);
+ VariableStoreHeader->Size = mFlashNvStorageVariableSize -
FirmwareVolumeHeader->HeaderLength;
+ VariableStoreHeader->Format = VARIABLE_STORE_FORMATTED;
+ VariableStoreHeader->State = VARIABLE_STORE_HEALTHY;
+
+ // Install the combined super-header in the NorFlash
+ Status = FvbWrite (&FlashInstance->FvbProtocol, 0, 0, &HeadersLength,
Headers);
+
+ FreePool (Headers);
+
+ return Status;
+}
+
+
+/**
+ Check the integrity of firmware volume header.
+
+ @param[in] FwVolHeader A pointer to a firmware volume header
+
+ @retval EFI_SUCCESS The firmware volume is consistent
+
+ @retval EFI_NOT_FOUND The firmware volume has been corrupted.
+
+**/
+STATIC
+EFI_STATUS
+FvbValidateFvHeader (
+ IN FT_FVB_DEVICE *FlashInstance
+ )
+{
+ UINT16 Checksum;
+ EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
+ VARIABLE_STORE_HEADER *VariableStoreHeader;
+ UINTN VariableStoreLength;
+ UINTN FvLength;
+
+ FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *)GET_DATA_OFFSET
(FlashInstance->RegionBaseAddress,
+ FlashInstance->StartLba,
+ FlashInstance->Media.BlockSize
+ );
+ FvLength = FlashInstance->FvbSize;
+
+
+ if ((FwVolHeader->Revision != EFI_FVH_REVISION) ||
+ (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||
+ (FwVolHeader->FvLength != FvLength))
+ {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ValidateFvHeader: No Firmware Volume header present\n"
+ ));
+ return EFI_NOT_FOUND;
+ }
+
+ // Check the Firmware Volume Guid
+ if ( CompareGuid (&FwVolHeader->FileSystemGuid, &gEfiSystemNvDataFvGuid) ==
FALSE ) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ValidateFvHeader: Firmware Volume Guid non-compatible\n"
+ ));
+ return EFI_NOT_FOUND;
+ }
+
+ // Verify the header checksum
+ Checksum = CalculateSum16 ((UINT16 *)FwVolHeader, FwVolHeader->HeaderLength);
+ if (Checksum != 0) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ValidateFvHeader: FV checksum is invalid (Checksum:0x%X)\n",
+ Checksum));
+ return EFI_NOT_FOUND;
+ }
+
+ VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN)FwVolHeader +
FwVolHeader->HeaderLength);
+
+ // Check the Variable Store Guid
+ if ( ! CompareGuid (&VariableStoreHeader->Signature, &gEfiVariableGuid) &&
+ ! CompareGuid (&VariableStoreHeader->Signature,
+ &gEfiAuthenticatedVariableGuid))
+ {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Variable Store Guid non-compatible\n"
+ ));
+ return EFI_NOT_FOUND;
+ }
+
+ VariableStoreLength = mFlashNvStorageVariableSize -
FwVolHeader->HeaderLength;
+ if (VariableStoreHeader->Size != VariableStoreLength) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ValidateFvHeader: Variable Store Length does not match\n"
+ ));
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ The FvbGetAttributes() function retrieves the attributes and
+ current settings of the block.
+
+ @param This Indicates the EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL
instance.
+
+ @param Attributes Pointer to EFI_FVB_ATTRIBUTES_2 in which the attributes
and
+ current settings are returned.
+ Type EFI_FVB_ATTRIBUTES_2 is defined in
+ EFI_FIRMWARE_VOLUME_HEADER.
+
+ @retval EFI_SUCCESS The firmware volume attributes were returned.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbGetAttributes (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ OUT EFI_FVB_ATTRIBUTES_2 *Attributes
+ )
+{
+ EFI_FVB_ATTRIBUTES_2 FlashFvbAttributes;
+ CONST FT_FVB_DEVICE *FlashInstance;
+
+ FlashInstance = INSTANCE_FROM_FVB_THIS (This);
+
+ FlashFvbAttributes = (EFI_FVB_ATTRIBUTES_2) (
+ EFI_FVB2_READ_ENABLED_CAP | // Reads may be enabled
+ EFI_FVB2_READ_STATUS | // Reads are currently enabled
+ EFI_FVB2_STICKY_WRITE | // A block erase is required to flip bits
into EFI_FVB2_ERASE_POLARITY
+ EFI_FVB2_MEMORY_MAPPED | // It is memory mapped
+ EFI_FVB2_ERASE_POLARITY // After erasure all bits take this value
(i.e. '1')
+ );
+
+ // Check if it is write protected
+ if (FlashInstance->Media.ReadOnly != TRUE) {
+ FlashFvbAttributes = FlashFvbAttributes |
+ EFI_FVB2_WRITE_STATUS | // Writes are currently
enabled
+ EFI_FVB2_WRITE_ENABLED_CAP; // Writes may be enabled
+ }
+
+ *Attributes = FlashFvbAttributes;
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ The FvbSetAttributes() function sets configurable firmware volume attributes
+ and returns the new settings of the firmware volume.
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+
+ @param Attributes On input, Attributes is a pointer to
+ EFI_FVB_ATTRIBUTES_2 that contains the
desired
+ firmware volume settings.
+ On successful return, it contains the new
+ settings of the firmware volume.
+
+ @retval EFI_SUCCESS The firmware volume attributes were returned.
+
+ @retval EFI_INVALID_PARAMETER The attributes requested are in conflict with
+ the capabilities as declared in the firmware
+ volume header.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbSetAttributes (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+
+/**
+ The FvbGetPhysicalAddress() function retrieves the base address of
+ a memory-mapped firmware volume. This function should be called
+ only for memory-mapped firmware volumes.
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+
+ @param Address Pointer to a caller-allocated
+ EFI_PHYSICAL_ADDRESS that, on successful
+ return from GetPhysicalAddress(), contains the
+ base address of the firmware volume.
+
+ @retval EFI_SUCCESS The firmware volume base address was returned.
+
+ @retval EFI_NOT_SUPPORTED The firmware volume is not memory mapped.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbGetPhysicalAddress (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ OUT EFI_PHYSICAL_ADDRESS *Address
+ )
+{
+ ASSERT (Address != NULL);
+
+ *Address = mFlashNvStorageVariableBase;
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ The FvbGetBlockSize() function retrieves the size of the requested
+ block. It also returns the number of additional blocks with
+ the identical size. The FvbGetBlockSize() function is used to
+ retrieve the block map (see EFI_FIRMWARE_VOLUME_HEADER).
+
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+
+ @param Lba Indicates the block whose size to return.
+
+ @param BlockSize Pointer to a caller-allocated UINTN in which
+ the size of the block is returned.
+
+ @param NumberOfBlocks Pointer to a caller-allocated UINTN in
+ which the number of consecutive blocks,
+ starting with Lba, is returned. All
+ blocks in this range have a size of
+ BlockSize.
+
+
+ @retval EFI_SUCCESS The firmware volume base address was
returned.
+
+ @retval EFI_INVALID_PARAMETER The requested LBA is out of range.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbGetBlockSize (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ IN EFI_LBA Lba,
+ OUT UINTN *BlockSize,
+ OUT UINTN *NumberOfBlocks
+ )
+{
+ EFI_STATUS Status;
+ FT_FVB_DEVICE *FlashInstance;
+
+ FlashInstance = INSTANCE_FROM_FVB_THIS (This);
+
+ if (Lba > FlashInstance->Media.LastBlock) {
+ Status = EFI_INVALID_PARAMETER;
+ } else {
+ // This is easy because in this platform each NorFlash device has equal
sized blocks.
+ *BlockSize = (UINTN) FlashInstance->Media.BlockSize;
+ *NumberOfBlocks = (UINTN) (FlashInstance->Media.LastBlock - Lba + 1);
+ Status = EFI_SUCCESS;
+ }
+
+ return Status;
+}
+
+
+/**
+ Reads the specified number of bytes into a buffer from the specified block.
+
+ The FvbRead() function reads the requested number of bytes from the
+ requested block and stores them in the provided buffer.
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+
+ @param Lba The starting logical block index from which to
read.
+
+ @param Offset Offset into the block at which to begin reading.
+
+ @param NumBytes Pointer to a UINTN.
+ At entry, *NumBytes contains the total size of
the
+ buffer.
+ At exit, *NumBytes contains the total number of
+ bytes read.
+
+ @param Buffer Pointer to a caller-allocated buffer that will be
+ used to hold the data that is read.
+
+ @retval EFI_SUCCESS The firmware volume was read successfully, and
+ contents are in Buffer.
+
+ @retval EFI_BAD_BUFFER_SIZE Read attempted across an LBA boundary.
+ On output, NumBytes contains the total number of
+ bytes returned in Buffer.
+
+ @retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state.
+
+ @retval EFI_DEVICE_ERROR The block device is not functioning correctly and
+ could not be read.
+**/
+EFI_STATUS
+EFIAPI
+FvbRead (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN OUT UINTN *NumBytes,
+ IN OUT UINT8 *Buffer
+ )
+{
+ UINTN BlockSize;
+ FT_FVB_DEVICE *FlashInstance;
+ EFI_STATUS Status;
+
+ FlashInstance = INSTANCE_FROM_FVB_THIS (This);
+
+ // Cache the block size to avoid de-referencing pointers all the time
+ BlockSize = FlashInstance->Media.BlockSize;
+
+ // The read must not span block boundaries.
+ // We need to check each variable individually because adding two large
values together overflows.
+ if ((Offset >= BlockSize) ||
+ (*NumBytes > BlockSize) ||
+ ((Offset + *NumBytes) > BlockSize)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ // We must have some bytes to read
+ if (*NumBytes == 0) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ Status = FvbFlashRead (
+ FlashInstance,
+ FlashInstance->StartLba + Lba,
+ Offset,
+ *NumBytes,
+ Buffer
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Writes the specified number of bytes from the input buffer to the block.
+
+ The FvbWrite() function writes the specified number of bytes from
+ the provided buffer to the specified block and offset.
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
+
+ @param Lba The starting logical block index to write to.
+
+ @param Offset Offset into the block at which to begin writing.
+
+ @param NumBytes The pointer to a UINTN.
+ At entry, *NumBytes contains the total size of
the
+ buffer.
+ At exit, *NumBytes contains the total number of
+ bytes actually written.
+
+ @param Buffer The pointer to a caller-allocated buffer that
+ contains the source for the write.
+
+ @retval EFI_SUCCESS The firmware volume was written successfully.
+
+ @retval EFI_BAD_BUFFER_SIZE The write was attempted across an LBA boundary.
+ On output, NumBytes contains the total number of
+ bytes actually written.
+
+ @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled
state.
+
+ @retval EFI_DEVICE_ERROR The block device is malfunctioning and could not
be
+ written.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbWrite (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ IN EFI_LBA Lba,
+ IN UINTN Offset,
+ IN OUT UINTN *NumBytes,
+ IN UINT8 *Buffer
+ )
+{
+ FT_FVB_DEVICE *FlashInstance;
+
+ FlashInstance = INSTANCE_FROM_FVB_THIS (This);
+
+ return FvbFlashWrite (FlashInstance,
+ FlashInstance->StartLba + Lba,
+ Offset,
+ *NumBytes,
+ Buffer
+ );
+}
+
+
+/**
+ Erases and initialises a firmware volume block.
+
+ The FvbEraseBlocks() function erases one or more blocks as denoted
+ by the variable argument list.
+
+ @param This EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL
+ instance.
+
+ @param ... The variable argument list is a list of
tuples.
+ Each tuple describes a range of LBAs to erase
+ and consists of the following:
+ An EFI_LBA that indicates the starting LBA
+ A UINTN that indicates the number of blocks
+ to erase.
+
+ The list is terminated with an
+ EFI_LBA_LIST_TERMINATOR.
+
+ @retval EFI_SUCCESS The erase request successfully completed.
+
+ @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled
+ state.
+
+ @retval EFI_DEVICE_ERROR The block device is not functioning correctly
+ and could not be written.
+ The firmware device may have been partially
+ erased.
+
+ @retval EFI_INVALID_PARAMETER One or more of the LBAs listed in the
variable
+ argument list do not exist in the firmware
+ volume.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbEraseBlocks (
+ IN CONST EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL *This,
+ ...
+ )
+{
+ EFI_STATUS Status;
+ VA_LIST Args;
+ UINTN BlockAddress; // Physical address of Lba to erase
+ EFI_LBA StartingLba; // Lba from which we start erasing
+ UINTN NumOfLba; // Number of Lba blocks to erase
+ FT_FVB_DEVICE *Instance;
+
+ Instance = INSTANCE_FROM_FVB_THIS (This);
+
+ Status = EFI_SUCCESS;
+
+ // Detect WriteDisabled state
+ if (Instance->Media.ReadOnly == TRUE) {
+ // Firmware volume is in WriteDisabled state
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbEraseBlocks: ERROR - Device is in WriteDisabled state.\n"
+ ));
+ return EFI_ACCESS_DENIED;
+ }
+
+ // Before erasing, check the entire list of parameters to ensure all
specified blocks are valid
+
+ VA_START (Args, This);
+ do {
+ // Get the Lba from which we start erasing
+ StartingLba = VA_ARG (Args, EFI_LBA);
+
+ // Have we reached the end of the list?
+ if (StartingLba == EFI_LBA_LIST_TERMINATOR) {
+ //Exit the while loop
+ break;
+ }
+
+ // How many Lba blocks are we requested to erase?
+ NumOfLba = VA_ARG (Args, UINT32);
+
+ // All blocks must be within range
+ if ((NumOfLba == 0) || ((Instance->StartLba + StartingLba + NumOfLba - 1)
> Instance->Media.LastBlock)) {
+ VA_END (Args);
+ DEBUG ((
+ DEBUG_ERROR,
+ "FvbEraseBlocks: ERROR - Lba range goes past the last Lba.\n"
+ ));
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }
+ } while (TRUE);
+
+ VA_END (Args);
+
+ //
+ // To get here, all must be ok, so start erasing
+ //
+ VA_START (Args, This);
+ do {
+ // Get the Lba from which we start erasing
+ StartingLba = VA_ARG (Args, EFI_LBA);
+
+ // Have we reached the end of the list?
+ if (StartingLba == EFI_LBA_LIST_TERMINATOR) {
+ // Exit the while loop
+ break;
+ }
+
+ // How many Lba blocks are we requested to erase?
+ NumOfLba = VA_ARG (Args, UINT32);
+
+ // Go through each one and erase it
+ while (NumOfLba > 0) {
+ // Get the physical address of Lba to erase
+ BlockAddress = GET_DATA_OFFSET (
+ Instance->RegionBaseAddress,
+ Instance->StartLba + StartingLba,
+ Instance->Media.BlockSize
+ );
+
+ // Erase it
+ Status = FvbFlashEraseSingleBlock (Instance, BlockAddress);
+ if (EFI_ERROR (Status)) {
+ VA_END (Args);
+ Status = EFI_DEVICE_ERROR;
+ goto EXIT;
+ }
+
+ // Move to the next Lba
+ StartingLba++;
+ NumOfLba--;
+ }
+ } while (TRUE);
+
+ VA_END (Args);
+
+EXIT:
+ return Status;
+}
+
+
+/**
+ This function inited the NorFlash instance.
+
+ @param[in][out] FlashInstance The pointer of FT_FVB_DEVICE instance.
+
+ @retval EFI_SUCCESS PhytNorFlashFvbInitialize() is executed
successfully.
+
+**/
+STATIC
+EFI_STATUS
+PhytNorFlashFvbInitialize (
+ IN OUT FT_FVB_DEVICE *FlashInstance
+ )
+{
+ EFI_STATUS Status;
+ UINT32 FvbNumLba;
+ EFI_BOOT_MODE BootMode;
+ UINTN TotalFvbSize;
+
+ // Declare the Non-Volatile storage as EFI_MEMORY_RUNTIME
+ Status = gDS->AddMemorySpace (
+ EfiGcdMemoryTypeMemoryMappedIo,
+ mFlashNvStorageVariableBase,
+ FlashInstance->FvbSize,
+ EFI_MEMORY_UC | EFI_MEMORY_RUNTIME
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gDS->SetMemorySpaceAttributes (
+ mFlashNvStorageVariableBase,
+ FlashInstance->FvbSize,
+ EFI_MEMORY_UC | EFI_MEMORY_RUNTIME
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ TotalFvbSize = FlashInstance->FvbSize;
+
+ // Set the index of the first LBA for the FVB
+ FlashInstance->StartLba = (mFlashNvStorageVariableBase -
FlashInstance->RegionBaseAddress) / FlashInstance->Media.BlockSize;
+
+ BootMode = GetBootModeHob ();
+ if (BootMode == BOOT_WITH_DEFAULT_SETTINGS) {
+ Status = EFI_INVALID_PARAMETER;
+ } else {
+ // Determine if there is a valid header at the beginning of the NorFlash
+ Status = FvbValidateFvHeader (FlashInstance);
+ }
+
+ // Install the Default FVB header if required
+ if (EFI_ERROR (Status)) {
+ // There is no valid header, so time to install one.
+ DEBUG ((
+ DEBUG_ERROR,
+ "NorFlashFvbInitialize: ERROR - The FVB Header is invalid. Installing a
correct one for this volume.\n"
+ ));
+
+ // Erase all the NorFlash that is reserved for variable storage
+ FvbNumLba = TotalFvbSize / FlashInstance->Media.BlockSize;
+
+ Status = FvbEraseBlocks (
+ &FlashInstance->FvbProtocol,
+ (EFI_LBA)0,
+ FvbNumLba,
+ EFI_LBA_LIST_TERMINATOR
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ // Install all appropriate headers
+ Status = FvbInitFvAndVariableStoreHeaders (FlashInstance);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ return Status;
+}
+
+
+/**
+ The CreateInstance() function Create Fvb Instance.
+
+ @retval EFI_SUCCESS Create Instance successfully.
+
+ @retval other Create Instance failed.
+
+**/
+STATIC
+EFI_STATUS
+CreateInstance (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ NOR_FLASH_DEVICE_DESCRIPTION *NorFlashDevice;
+
+ // Locate flash protocols
+ Status = gBS->LocateProtocol (&gSpiNorFlashProtocolGuid,
+ NULL,
+ (VOID **)&FvbDevice->SpiFlashProtocol);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "Cannot locate NorFlash protocol.\n"
+ ));
+ return Status;
+ }
+
+ NorFlashDevice = AllocateRuntimePool (sizeof (NOR_FLASH_DEVICE_DESCRIPTION));
+ if (NorFlashDevice == NULL) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "Cannot Allocate NorFlashDevice Pool.\n"
+ ));
+ return Status;
+ }
+
+ Status = FvbDevice->SpiFlashProtocol->GetDevices (NorFlashDevice);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = FvbDevice->SpiFlashProtocol->Initialization ();
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ FvbDevice->DeviceBaseAddress = NorFlashDevice->DeviceBaseAddress;
+ FvbDevice->RegionBaseAddress = NorFlashDevice->RegionBaseAddress;
+ FvbDevice->Size = NorFlashDevice->Size;
+
+ FvbDevice->Media.MediaId = 0;
+ FvbDevice->Media.BlockSize = NorFlashDevice->BlockSize;
+ FvbDevice->Media.LastBlock = (FvbDevice->Size / FvbDevice->Media.BlockSize)
- 1;
+ FvbDevice->FvbSize = mFlashNvStorageVariableBase +
+ mFlashNvStorageFtwWorkingBase +
+ mFlashNvStorageFtwSpareBase;
+
+ CopyGuid (&FvbDevice->DevicePath.Vendor.Guid, &NorFlashDevice->Guid);
+
+ FvbDevice->ShadowBuffer = AllocateRuntimePool (FvbDevice->Media.BlockSize);
+ if (FvbDevice->ShadowBuffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &FvbDevice->Handle,
+ &gEfiDevicePathProtocolGuid,
+ &FvbDevice->DevicePath,
+ &gEfiFirmwareVolumeBlockProtocolGuid,
+ &FvbDevice->FvbProtocol,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ FreePool (FvbDevice);
+ return Status;
+ }
+
+ Status = PhytNorFlashFvbInitialize (FvbDevice);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "PhytNorFlashFvbInitialize: Fail to init NorFlash devices\n"
+ ));
+ return Status;
+ }
+
+ FreePool (NorFlashDevice);
+
+ return Status;
+}
+
+
+/**
+ Fixup internal data so that EFI can be call in virtual mode.
+ Call the passed in Child Notify event and convert any pointers
+ in lib to virtual mode.
+
+ @param[in] Event The Event that is being processed.
+
+ @param[in] Context Event Context.
+
+ @retval None.
+
+**/
+STATIC
+VOID
+EFIAPI
+FvbVirtualNotifyEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ // Convert SpiFlashProtocol
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice->SpiFlashProtocol->Erase);
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice->SpiFlashProtocol->Write);
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice->SpiFlashProtocol->Read);
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice->SpiFlashProtocol->GetDevices);
+ EfiConvertPointer (0x0, (VOID
**)&FvbDevice->SpiFlashProtocol->Initialization);
+ EfiConvertPointer (0x0, (VOID
**)&FvbDevice->SpiFlashProtocol->EraseSingleBlock);
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice->SpiFlashProtocol);
+
+ EfiConvertPointer (0x0, (VOID **)&mFlashNvStorageVariableBase);
+ EfiConvertPointer (0x0, (VOID **)&mFlashNvStorageFtwWorkingBase);
+ EfiConvertPointer (0x0, (VOID **)&mFlashNvStorageFtwSpareBase);
+ EfiConvertPointer (0x0, (VOID **)&FvbDevice);
+
+ return;
+}
+
+
+/**
+ This function is the entrypoint of the fvb driver.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ FvbDevice = AllocateRuntimeCopyPool (
+ sizeof (FvbFlashInstanceTemplate),
+ &FvbFlashInstanceTemplate
+ );
+ if (FvbDevice == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ mFlashNvStorageVariableBase = FixedPcdGet64
(PcdFlashNvStorageVariableBase64);
+ mFlashNvStorageFtwWorkingBase = FixedPcdGet64
(PcdFlashNvStorageFtwWorkingBase64);
+ mFlashNvStorageFtwSpareBase = FixedPcdGet64
(PcdFlashNvStorageFtwSpareBase64);
+ mFlashNvStorageVariableSize = FixedPcdGet64
(PcdFlashNvStorageVariableSize);
+ mFlashNvStorageFtwWorkingSize = FixedPcdGet64
(PcdFlashNvStorageFtwWorkingSize);
+ mFlashNvStorageFtwSpareSize = FixedPcdGet64
(PcdFlashNvStorageFtwSpareSize);
+
+ Status = CreateInstance ();
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "CreateInstance: Fail to create instance for NorFlash\n"
+ ));
+ }
+
+//
+// Register for the virtual address change event
+//
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ FvbVirtualNotifyEvent,
+ NULL,
+ &gEfiEventVirtualAddressChangeGuid,
+ &FvbVirtualAddrChangeEvent
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
--
2.25.1
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