Detailed Description

The EFI_SPI_NOR_FLASH_PROTOCOL exists in the SPI peripheral layer. This protocol manipulates the SPI NOR flash parts using a common set of commands. The board layer provides the interconnection and configuration details for the SPI NOR flash part. The SPI NOR flash driver uses this configuration data to expose a generic interface which provides the following APls:

Read manufacture and device ID
Read data
Read data using low frequency
Read status
Write data
Erase 4 KiB blocks
Erase 32 or 64 KiB blocks
Write status The EFI_SPI_NOR_FLASH_PROTOCOL also exposes some APls to set the security features on the legacy SPI flash controller.

Member Data Documentation

◆ Deviceid

UINT8 _EFI_SPI_NOR_FLASH_PROTOCOL::Deviceid[3]

Manufacture and Device ID

◆ Erase

EFI_SPI_NOR_FLASH_PROTOCOL_ERASE _EFI_SPI_NOR_FLASH_PROTOCOL::Erase

Efficiently erases one or more 4KiB regions in the SPI flash.

◆ EraseBlockBytes

UINT32 _EFI_SPI_NOR_FLASH_PROTOCOL::EraseBlockBytes

Erase block size in bytes

◆ FlashSize

UINT32 _EFI_SPI_NOR_FLASH_PROTOCOL::FlashSize

Flash size in bytes

◆ GetFlashid

EFI_SPI_NOR_FLASH_PROTOCOL_GET_FLASH_ID _EFI_SPI_NOR_FLASH_PROTOCOL::GetFlashid

Read the 3 byte manufacture and device ID from the SPI flash.

◆ LfReadData

EFI_SPI_NOR_FLASH_PROTOCOL_READ_DATA _EFI_SPI_NOR_FLASH_PROTOCOL::LfReadData

Low frequency read data from the SPI flash.

◆ ReadData

EFI_SPI_NOR_FLASH_PROTOCOL_READ_DATA _EFI_SPI_NOR_FLASH_PROTOCOL::ReadData

Read data from the SPI flash.

◆ ReadStatus

EFI_SPI_NOR_FLASH_PROTOCOL_READ_STATUS _EFI_SPI_NOR_FLASH_PROTOCOL::ReadStatus

Read the flash status register.

◆ SpiPeripheral

CONST EFI_SPI_PERIPHERAL* _EFI_SPI_NOR_FLASH_PROTOCOL::SpiPeripheral

Pointer to an EFI_SPI_PERIPHERAL data structure

◆ WriteData

EFI_SPI_NOR_FLASH_PROTOCOL_WRITE_DATA _EFI_SPI_NOR_FLASH_PROTOCOL::WriteData

Write data to the SPI flash.

◆ WriteStatus

EFI_SPI_NOR_FLASH_PROTOCOL_WRITE_STATUS _EFI_SPI_NOR_FLASH_PROTOCOL::WriteStatus

Write the flash status register.

The documentation for this struct was generated from the following file:

XenevaOS/Boot/include/Protocol/SpiNorFlash.h

Public Attributes
CONST EFI_SPI_PERIPHERAL *	SpiPeripheral

UINT32	FlashSize

UINT8	Deviceid [3]

UINT32	EraseBlockBytes

EFI_SPI_NOR_FLASH_PROTOCOL_GET_FLASH_ID	GetFlashid

EFI_SPI_NOR_FLASH_PROTOCOL_READ_DATA	ReadData

EFI_SPI_NOR_FLASH_PROTOCOL_READ_DATA	LfReadData

EFI_SPI_NOR_FLASH_PROTOCOL_READ_STATUS	ReadStatus

EFI_SPI_NOR_FLASH_PROTOCOL_WRITE_STATUS	WriteStatus

EFI_SPI_NOR_FLASH_PROTOCOL_WRITE_DATA	WriteData

EFI_SPI_NOR_FLASH_PROTOCOL_ERASE	Erase

Public Attributes