ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashDxe.h - edk2 - Git at Google

 /** @file  NorFlashDxe.h

   Copyright (c) 2011 - 2014, ARM Ltd. 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.

 **/

 #ifndef __NOR_FLASH_DXE_H__
 #define __NOR_FLASH_DXE_H__


 #include <Base.h>
 #include <PiDxe.h>

 #include <Guid/EventGroup.h>

 #include <Protocol/BlockIo.h>
 #include <Protocol/DiskIo.h>
 #include <Protocol/FirmwareVolumeBlock.h>

 #include <Library/DebugLib.h>
 #include <Library/IoLib.h>
 #include <Library/NorFlashPlatformLib.h>
 #include <Library/UefiLib.h>
 #include <Library/UefiRuntimeLib.h>

 #define NOR_FLASH_ERASE_RETRY                     10

 // Device access macros
 // These are necessary because we use 2 x 16bit parts to make up 32bit data

 #define HIGH_16_BITS                              0xFFFF0000
 #define LOW_16_BITS                               0x0000FFFF
 #define LOW_8_BITS                                0x000000FF

 #define FOLD_32BIT_INTO_16BIT(value)              ( ( value >> 16 ) | ( value & LOW_16_BITS ) )

 #define GET_LOW_BYTE(value)                       ( value & LOW_8_BITS )
 #define GET_HIGH_BYTE(value)                      ( GET_LOW_BYTE( value >> 16 ) )

 // Each command must be sent simultaneously to both chips,
 // i.e. at the lower 16 bits AND at the higher 16 bits
 #define CREATE_NOR_ADDRESS(BaseAddr,OffsetAddr)   ((BaseAddr) + ((OffsetAddr) << 2))
 #define CREATE_DUAL_CMD(Cmd)                      ( ( Cmd << 16) | ( Cmd & LOW_16_BITS) )
 #define SEND_NOR_COMMAND(BaseAddr,Offset,Cmd) MmioWrite32 (CREATE_NOR_ADDRESS(BaseAddr,Offset), CREATE_DUAL_CMD(Cmd))
 #define GET_NOR_BLOCK_ADDRESS(BaseAddr,Lba,LbaSize)( BaseAddr + (UINTN)((Lba) * LbaSize) )

 // Status Register Bits
 #define P30_SR_BIT_WRITE                          (BIT7 << 16 | BIT7)
 #define P30_SR_BIT_ERASE_SUSPEND                  (BIT6 << 16 | BIT6)
 #define P30_SR_BIT_ERASE                          (BIT5 << 16 | BIT5)
 #define P30_SR_BIT_PROGRAM                        (BIT4 << 16 | BIT4)
 #define P30_SR_BIT_VPP                            (BIT3 << 16 | BIT3)
 #define P30_SR_BIT_PROGRAM_SUSPEND                (BIT2 << 16 | BIT2)
 #define P30_SR_BIT_BLOCK_LOCKED                   (BIT1 << 16 | BIT1)
 #define P30_SR_BIT_BEFP                           (BIT0 << 16 | BIT0)

 // Device Commands for Intel StrataFlash(R) Embedded Memory (P30) Family

 // On chip buffer size for buffered programming operations
 // There are 2 chips, each chip can buffer up to 32 (16-bit)words, and each word is 2 bytes.
 // Therefore the total size of the buffer is 2 x 32 x 2 = 128 bytes
 #define P30_MAX_BUFFER_SIZE_IN_BYTES              ((UINTN)128)
 #define P30_MAX_BUFFER_SIZE_IN_WORDS              (P30_MAX_BUFFER_SIZE_IN_BYTES/((UINTN)4))
 #define MAX_BUFFERED_PROG_ITERATIONS              10000000
 #define BOUNDARY_OF_32_WORDS                      0x7F

 // CFI Addresses
 #define P30_CFI_ADDR_QUERY_UNIQUE_QRY             0x10
 #define P30_CFI_ADDR_VENDOR_ID                    0x13

 // CFI Data
 #define CFI_QRY                                   0x00595251

 // READ Commands
 #define P30_CMD_READ_DEVICE_ID                    0x0090
 #define P30_CMD_READ_STATUS_REGISTER              0x0070
 #define P30_CMD_CLEAR_STATUS_REGISTER             0x0050
 #define P30_CMD_READ_ARRAY                        0x00FF
 #define P30_CMD_READ_CFI_QUERY                    0x0098

 // WRITE Commands
 #define P30_CMD_WORD_PROGRAM_SETUP                0x0040
 #define P30_CMD_ALTERNATE_WORD_PROGRAM_SETUP      0x0010
 #define P30_CMD_BUFFERED_PROGRAM_SETUP            0x00E8
 #define P30_CMD_BUFFERED_PROGRAM_CONFIRM          0x00D0
 #define P30_CMD_BEFP_SETUP                        0x0080
 #define P30_CMD_BEFP_CONFIRM                      0x00D0

 // ERASE Commands
 #define P30_CMD_BLOCK_ERASE_SETUP                 0x0020
 #define P30_CMD_BLOCK_ERASE_CONFIRM               0x00D0

 // SUSPEND Commands
 #define P30_CMD_PROGRAM_OR_ERASE_SUSPEND          0x00B0
 #define P30_CMD_SUSPEND_RESUME                    0x00D0

 // BLOCK LOCKING / UNLOCKING Commands
 #define P30_CMD_LOCK_BLOCK_SETUP                  0x0060
 #define P30_CMD_LOCK_BLOCK                        0x0001
 #define P30_CMD_UNLOCK_BLOCK                      0x00D0
 #define P30_CMD_LOCK_DOWN_BLOCK                   0x002F

 // PROTECTION Commands
 #define P30_CMD_PROGRAM_PROTECTION_REGISTER_SETUP 0x00C0

 // CONFIGURATION Commands
 #define P30_CMD_READ_CONFIGURATION_REGISTER_SETUP 0x0060
 #define P30_CMD_READ_CONFIGURATION_REGISTER       0x0003

 #define NOR_FLASH_SIGNATURE                       SIGNATURE_32('n', 'o', 'r', '0')
 #define INSTANCE_FROM_FVB_THIS(a)                 CR(a, NOR_FLASH_INSTANCE, FvbProtocol, NOR_FLASH_SIGNATURE)
 #define INSTANCE_FROM_BLKIO_THIS(a)               CR(a, NOR_FLASH_INSTANCE, BlockIoProtocol, NOR_FLASH_SIGNATURE)
 #define INSTANCE_FROM_DISKIO_THIS(a)              CR(a, NOR_FLASH_INSTANCE, DiskIoProtocol, NOR_FLASH_SIGNATURE)

 typedef struct _NOR_FLASH_INSTANCE                NOR_FLASH_INSTANCE;

 typedef EFI_STATUS (*NOR_FLASH_INITIALIZE)        (NOR_FLASH_INSTANCE* Instance);

 typedef struct {
   VENDOR_DEVICE_PATH                  Vendor;
   EFI_DEVICE_PATH_PROTOCOL            End;
 } NOR_FLASH_DEVICE_PATH;

 struct _NOR_FLASH_INSTANCE {
   UINT32                              Signature;
   EFI_HANDLE                          Handle;

   BOOLEAN                             Initialized;
   NOR_FLASH_INITIALIZE                Initialize;

   UINTN                               DeviceBaseAddress;
   UINTN                               RegionBaseAddress;
   UINTN                               Size;
   EFI_LBA                             StartLba;

   EFI_BLOCK_IO_PROTOCOL               BlockIoProtocol;
   EFI_BLOCK_IO_MEDIA                  Media;
   EFI_DISK_IO_PROTOCOL                DiskIoProtocol;

   BOOLEAN                             SupportFvb;
   EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL FvbProtocol;
   VOID*                               ShadowBuffer;

   NOR_FLASH_DEVICE_PATH               DevicePath;
 };

 extern CONST EFI_GUID* CONST          mNorFlashVariableGuid;

 EFI_STATUS
 NorFlashReadCfiData (
   IN  UINTN                   DeviceBaseAddress,
   IN  UINTN                   CFI_Offset,
   IN  UINT32                  NumberOfBytes,
   OUT UINT32                  *Data
   );

 EFI_STATUS
 NorFlashWriteBuffer (
   IN NOR_FLASH_INSTANCE     *Instance,
   IN UINTN                  TargetAddress,
   IN UINTN                  BufferSizeInBytes,
   IN UINT32                 *Buffer
   );

 //
 // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.Reset
 //
 EFI_STATUS
 EFIAPI
 NorFlashBlockIoReset (
   IN EFI_BLOCK_IO_PROTOCOL    *This,
   IN BOOLEAN                  ExtendedVerification
   );

 //
 // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks
 //
 EFI_STATUS
 EFIAPI
 NorFlashBlockIoReadBlocks (
   IN  EFI_BLOCK_IO_PROTOCOL   *This,
   IN  UINT32                  MediaId,
   IN  EFI_LBA                 Lba,
   IN  UINTN                   BufferSizeInBytes,
   OUT VOID                    *Buffer
 );

 //
 // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks
 //
 EFI_STATUS
 EFIAPI
 NorFlashBlockIoWriteBlocks (
   IN  EFI_BLOCK_IO_PROTOCOL   *This,
   IN  UINT32                  MediaId,
   IN  EFI_LBA                 Lba,
   IN  UINTN                   BufferSizeInBytes,
   IN  VOID                    *Buffer
 );

 //
 // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks
 //
 EFI_STATUS
 EFIAPI
 NorFlashBlockIoFlushBlocks (
   IN EFI_BLOCK_IO_PROTOCOL    *This
 );

 //
 // DiskIO Protocol function EFI_DISK_IO_PROTOCOL.ReadDisk
 //
 EFI_STATUS
 EFIAPI
 NorFlashDiskIoReadDisk (
   IN EFI_DISK_IO_PROTOCOL         *This,
   IN UINT32                       MediaId,
   IN UINT64                       Offset,
   IN UINTN                        BufferSize,
   OUT VOID                        *Buffer
   );

 //
 // DiskIO Protocol function EFI_DISK_IO_PROTOCOL.WriteDisk
 //
 EFI_STATUS
 EFIAPI
 NorFlashDiskIoWriteDisk (
   IN EFI_DISK_IO_PROTOCOL         *This,
   IN UINT32                       MediaId,
   IN UINT64                       Offset,
   IN UINTN                        BufferSize,
   IN VOID                         *Buffer
   );

 //
 // NorFlashFvbDxe.c
 //

 EFI_STATUS
 EFIAPI
 NorFlashFvbInitialize (
   IN NOR_FLASH_INSTANCE*                            Instance
   );

 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,
   ...
   );

 //
 // NorFlashDxe.c
 //

 EFI_STATUS
 NorFlashUnlockAndEraseSingleBlock (
   IN NOR_FLASH_INSTANCE     *Instance,
   IN UINTN                  BlockAddress
   );

 EFI_STATUS
 NorFlashWriteSingleBlock (
   IN        NOR_FLASH_INSTANCE   *Instance,
   IN        EFI_LBA               Lba,
   IN        UINTN                 Offset,
   IN OUT    UINTN                *NumBytes,
   IN        UINT8                *Buffer
   );

 EFI_STATUS
 NorFlashWriteBlocks (
   IN  NOR_FLASH_INSTANCE *Instance,
   IN  EFI_LBA           Lba,
   IN  UINTN             BufferSizeInBytes,
   IN  VOID              *Buffer
   );

 EFI_STATUS
 NorFlashReadBlocks (
   IN NOR_FLASH_INSTANCE   *Instance,
   IN EFI_LBA              Lba,
   IN UINTN                BufferSizeInBytes,
   OUT VOID                *Buffer
   );

 EFI_STATUS
 NorFlashRead (
   IN NOR_FLASH_INSTANCE   *Instance,
   IN EFI_LBA              Lba,
   IN UINTN                Offset,
   IN UINTN                BufferSizeInBytes,
   OUT VOID                *Buffer
   );

 EFI_STATUS
 NorFlashWrite (
   IN        NOR_FLASH_INSTANCE   *Instance,
   IN        EFI_LBA               Lba,
   IN        UINTN                 Offset,
   IN OUT    UINTN                *NumBytes,
   IN        UINT8                *Buffer
   );

 EFI_STATUS
 NorFlashReset (
   IN  NOR_FLASH_INSTANCE *Instance
   );

 #endif /* __NOR_FLASH_DXE_H__ */
	/** @file NorFlashDxe.h

	Copyright (c) 2011 - 2014, ARM Ltd. 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.

	**/

	#ifndef __NOR_FLASH_DXE_H__
	#define __NOR_FLASH_DXE_H__


	#include <Base.h>
	#include <PiDxe.h>

	#include <Guid/EventGroup.h>

	#include <Protocol/BlockIo.h>
	#include <Protocol/DiskIo.h>
	#include <Protocol/FirmwareVolumeBlock.h>

	#include <Library/DebugLib.h>
	#include <Library/IoLib.h>
	#include <Library/NorFlashPlatformLib.h>
	#include <Library/UefiLib.h>
	#include <Library/UefiRuntimeLib.h>

	#define NOR_FLASH_ERASE_RETRY 10

	// Device access macros
	// These are necessary because we use 2 x 16bit parts to make up 32bit data

	#define HIGH_16_BITS 0xFFFF0000
	#define LOW_16_BITS 0x0000FFFF
	#define LOW_8_BITS 0x000000FF

	#define FOLD_32BIT_INTO_16BIT(value) ( ( value >> 16 ) \| ( value & LOW_16_BITS ) )

	#define GET_LOW_BYTE(value) ( value & LOW_8_BITS )
	#define GET_HIGH_BYTE(value) ( GET_LOW_BYTE( value >> 16 ) )

	// Each command must be sent simultaneously to both chips,
	// i.e. at the lower 16 bits AND at the higher 16 bits
	#define CREATE_NOR_ADDRESS(BaseAddr,OffsetAddr) ((BaseAddr) + ((OffsetAddr) << 2))
	#define CREATE_DUAL_CMD(Cmd) ( ( Cmd << 16) \| ( Cmd & LOW_16_BITS) )
	#define SEND_NOR_COMMAND(BaseAddr,Offset,Cmd) MmioWrite32 (CREATE_NOR_ADDRESS(BaseAddr,Offset), CREATE_DUAL_CMD(Cmd))
	#define GET_NOR_BLOCK_ADDRESS(BaseAddr,Lba,LbaSize)( BaseAddr + (UINTN)((Lba) * LbaSize) )

	// Status Register Bits
	#define P30_SR_BIT_WRITE (BIT7 << 16 \| BIT7)
	#define P30_SR_BIT_ERASE_SUSPEND (BIT6 << 16 \| BIT6)
	#define P30_SR_BIT_ERASE (BIT5 << 16 \| BIT5)
	#define P30_SR_BIT_PROGRAM (BIT4 << 16 \| BIT4)
	#define P30_SR_BIT_VPP (BIT3 << 16 \| BIT3)
	#define P30_SR_BIT_PROGRAM_SUSPEND (BIT2 << 16 \| BIT2)
	#define P30_SR_BIT_BLOCK_LOCKED (BIT1 << 16 \| BIT1)
	#define P30_SR_BIT_BEFP (BIT0 << 16 \| BIT0)

	// Device Commands for Intel StrataFlash(R) Embedded Memory (P30) Family

	// On chip buffer size for buffered programming operations
	// There are 2 chips, each chip can buffer up to 32 (16-bit)words, and each word is 2 bytes.
	// Therefore the total size of the buffer is 2 x 32 x 2 = 128 bytes
	#define P30_MAX_BUFFER_SIZE_IN_BYTES ((UINTN)128)
	#define P30_MAX_BUFFER_SIZE_IN_WORDS (P30_MAX_BUFFER_SIZE_IN_BYTES/((UINTN)4))
	#define MAX_BUFFERED_PROG_ITERATIONS 10000000
	#define BOUNDARY_OF_32_WORDS 0x7F

	// CFI Addresses
	#define P30_CFI_ADDR_QUERY_UNIQUE_QRY 0x10
	#define P30_CFI_ADDR_VENDOR_ID 0x13

	// CFI Data
	#define CFI_QRY 0x00595251

	// READ Commands
	#define P30_CMD_READ_DEVICE_ID 0x0090
	#define P30_CMD_READ_STATUS_REGISTER 0x0070
	#define P30_CMD_CLEAR_STATUS_REGISTER 0x0050
	#define P30_CMD_READ_ARRAY 0x00FF
	#define P30_CMD_READ_CFI_QUERY 0x0098

	// WRITE Commands
	#define P30_CMD_WORD_PROGRAM_SETUP 0x0040
	#define P30_CMD_ALTERNATE_WORD_PROGRAM_SETUP 0x0010
	#define P30_CMD_BUFFERED_PROGRAM_SETUP 0x00E8
	#define P30_CMD_BUFFERED_PROGRAM_CONFIRM 0x00D0
	#define P30_CMD_BEFP_SETUP 0x0080
	#define P30_CMD_BEFP_CONFIRM 0x00D0

	// ERASE Commands
	#define P30_CMD_BLOCK_ERASE_SETUP 0x0020
	#define P30_CMD_BLOCK_ERASE_CONFIRM 0x00D0

	// SUSPEND Commands
	#define P30_CMD_PROGRAM_OR_ERASE_SUSPEND 0x00B0
	#define P30_CMD_SUSPEND_RESUME 0x00D0

	// BLOCK LOCKING / UNLOCKING Commands
	#define P30_CMD_LOCK_BLOCK_SETUP 0x0060
	#define P30_CMD_LOCK_BLOCK 0x0001
	#define P30_CMD_UNLOCK_BLOCK 0x00D0
	#define P30_CMD_LOCK_DOWN_BLOCK 0x002F

	// PROTECTION Commands
	#define P30_CMD_PROGRAM_PROTECTION_REGISTER_SETUP 0x00C0

	// CONFIGURATION Commands
	#define P30_CMD_READ_CONFIGURATION_REGISTER_SETUP 0x0060
	#define P30_CMD_READ_CONFIGURATION_REGISTER 0x0003

	#define NOR_FLASH_SIGNATURE SIGNATURE_32('n', 'o', 'r', '0')
	#define INSTANCE_FROM_FVB_THIS(a) CR(a, NOR_FLASH_INSTANCE, FvbProtocol, NOR_FLASH_SIGNATURE)
	#define INSTANCE_FROM_BLKIO_THIS(a) CR(a, NOR_FLASH_INSTANCE, BlockIoProtocol, NOR_FLASH_SIGNATURE)
	#define INSTANCE_FROM_DISKIO_THIS(a) CR(a, NOR_FLASH_INSTANCE, DiskIoProtocol, NOR_FLASH_SIGNATURE)

	typedef struct _NOR_FLASH_INSTANCE NOR_FLASH_INSTANCE;

	typedef EFI_STATUS (NOR_FLASH_INITIALIZE) (NOR_FLASH_INSTANCE Instance);

	typedef struct {
	VENDOR_DEVICE_PATH Vendor;
	EFI_DEVICE_PATH_PROTOCOL End;
	} NOR_FLASH_DEVICE_PATH;

	struct _NOR_FLASH_INSTANCE {
	UINT32 Signature;
	EFI_HANDLE Handle;

	BOOLEAN Initialized;
	NOR_FLASH_INITIALIZE Initialize;

	UINTN DeviceBaseAddress;
	UINTN RegionBaseAddress;
	UINTN Size;
	EFI_LBA StartLba;

	EFI_BLOCK_IO_PROTOCOL BlockIoProtocol;
	EFI_BLOCK_IO_MEDIA Media;
	EFI_DISK_IO_PROTOCOL DiskIoProtocol;

	BOOLEAN SupportFvb;
	EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL FvbProtocol;
	VOID* ShadowBuffer;

	NOR_FLASH_DEVICE_PATH DevicePath;
	};

	extern CONST EFI_GUID* CONST mNorFlashVariableGuid;

	EFI_STATUS
	NorFlashReadCfiData (
	IN UINTN DeviceBaseAddress,
	IN UINTN CFI_Offset,
	IN UINT32 NumberOfBytes,
	OUT UINT32 *Data
	);

	EFI_STATUS
	NorFlashWriteBuffer (
	IN NOR_FLASH_INSTANCE *Instance,
	IN UINTN TargetAddress,
	IN UINTN BufferSizeInBytes,
	IN UINT32 *Buffer
	);

	//
	// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.Reset
	//
	EFI_STATUS
	EFIAPI
	NorFlashBlockIoReset (
	IN EFI_BLOCK_IO_PROTOCOL *This,
	IN BOOLEAN ExtendedVerification
	);

	//
	// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks
	//
	EFI_STATUS
	EFIAPI
	NorFlashBlockIoReadBlocks (
	IN EFI_BLOCK_IO_PROTOCOL *This,
	IN UINT32 MediaId,
	IN EFI_LBA Lba,
	IN UINTN BufferSizeInBytes,
	OUT VOID *Buffer
	);

	//
	// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks
	//
	EFI_STATUS
	EFIAPI
	NorFlashBlockIoWriteBlocks (
	IN EFI_BLOCK_IO_PROTOCOL *This,
	IN UINT32 MediaId,
	IN EFI_LBA Lba,
	IN UINTN BufferSizeInBytes,
	IN VOID *Buffer
	);

	//
	// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks
	//
	EFI_STATUS
	EFIAPI
	NorFlashBlockIoFlushBlocks (
	IN EFI_BLOCK_IO_PROTOCOL *This
	);

	//
	// DiskIO Protocol function EFI_DISK_IO_PROTOCOL.ReadDisk
	//
	EFI_STATUS
	EFIAPI
	NorFlashDiskIoReadDisk (
	IN EFI_DISK_IO_PROTOCOL *This,
	IN UINT32 MediaId,
	IN UINT64 Offset,
	IN UINTN BufferSize,
	OUT VOID *Buffer
	);

	//
	// DiskIO Protocol function EFI_DISK_IO_PROTOCOL.WriteDisk
	//
	EFI_STATUS
	EFIAPI
	NorFlashDiskIoWriteDisk (
	IN EFI_DISK_IO_PROTOCOL *This,
	IN UINT32 MediaId,
	IN UINT64 Offset,
	IN UINTN BufferSize,
	IN VOID *Buffer
	);

	//
	// NorFlashFvbDxe.c
	//

	EFI_STATUS
	EFIAPI
	NorFlashFvbInitialize (
	IN NOR_FLASH_INSTANCE* Instance
	);

	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,
	...
	);

	//
	// NorFlashDxe.c
	//

	EFI_STATUS
	NorFlashUnlockAndEraseSingleBlock (
	IN NOR_FLASH_INSTANCE *Instance,
	IN UINTN BlockAddress
	);

	EFI_STATUS
	NorFlashWriteSingleBlock (
	IN NOR_FLASH_INSTANCE *Instance,
	IN EFI_LBA Lba,
	IN UINTN Offset,
	IN OUT UINTN *NumBytes,
	IN UINT8 *Buffer
	);

	EFI_STATUS
	NorFlashWriteBlocks (
	IN NOR_FLASH_INSTANCE *Instance,
	IN EFI_LBA Lba,
	IN UINTN BufferSizeInBytes,
	IN VOID *Buffer
	);

	EFI_STATUS
	NorFlashReadBlocks (
	IN NOR_FLASH_INSTANCE *Instance,
	IN EFI_LBA Lba,
	IN UINTN BufferSizeInBytes,
	OUT VOID *Buffer
	);

	EFI_STATUS
	NorFlashRead (
	IN NOR_FLASH_INSTANCE *Instance,
	IN EFI_LBA Lba,
	IN UINTN Offset,
	IN UINTN BufferSizeInBytes,
	OUT VOID *Buffer
	);

	EFI_STATUS
	NorFlashWrite (
	IN NOR_FLASH_INSTANCE *Instance,
	IN EFI_LBA Lba,
	IN UINTN Offset,
	IN OUT UINTN *NumBytes,
	IN UINT8 *Buffer
	);

	EFI_STATUS
	NorFlashReset (
	IN NOR_FLASH_INSTANCE *Instance
	);

	#endif /* __NOR_FLASH_DXE_H__ */