Overview

This file contains a design example using the QSPIPSU driver (XQspiPsu) with a serial Flash device greater than or equal to 128Mb.

The example writes to flash and reads it back in DMA mode. This examples runs with GENFIFO Manual start. It runs in interrupt mode. This example illustrates single, parallel and stacked modes. Both the flash devices have to be of the same make and size. The hardware which this example runs on, must have a serial Flash (Micron N25Q or Spansion S25FL) for it to run. In order to test in single, parallel or stacked flash configurations the necessary HW must be present and QSPI_MODE (also reflected in ConnectionMode in the instance) has to be in sync with HW flash configuration being tested.

This example has been tested with the Micron Serial Flash (N25Q512) and ISSI Serial Flash parts of IS25WP and IS25LP series flashes in single and parallel modes using A53 and R5 processors.

Note

None.

 MODIFICATION HISTORY:

Ver Who Date Changes

1.0 hk 08/21/14 First release sk 06/17/15 Used Tx/Rx flags for Transmitting/Receiving. sk 11/23/15 Added Support for Macronix 1Gb part. ms 04/05/17 Modified Comment lines in functions to recognize it as documentation block for doxygen generation. 1.1 tjs 06/16/17 Added support for IS25LP256D flash part (PR-4650) 1.5 tjs 09/15/17 Replaced #ifdef COMMENTS to #if USE_FOUR_BYTE (CR-984966) 1.6 tjs 10/16/17 #ifdef COMMENT replaced with the flow similar to u-boot and linux for accessing flash parts with size more then 16MB (CR-984966) 1.7 tjs 11/16/17 Removed the unsupported 4 Byte write and sector erase commands. 1.7 tjs 12/01/17 Added support for MT25QL02G Flash from Micron. CR-990642 1.7 tjs 12/19/17 Added support for S25FL064L from Spansion. CR-990724 1.7 tjs 01/11/18 Added support for MX66L1G45G flash from Macronix CR-992367 1.7 tjs 26/03/18 In dual parallel mode enable both CS when issuing Write enable command. CR-998478 1.8 tjs 05/02/18 Added support for IS25LP064 and IS25WP064. 1.8 tjs 16/07/18 Added support for the low density ISSI flash parts. 1.9 akm 02/27/19 Added support for IS25LP128, IS25WP128, IS25LP256, IS25WP256, IS25LP512, IS25WP512 Flash Devices 1.9 akm 04/03/19 Fixed data alignment warnings on IAR compiler. 1.10 akm 09/05/19 Added Multi Die Erase and Muti Die Read support. 1.13 akm 11/30/20 Removed unwanted header files. 1.13 akm 12/10/20 Set Read command as per the qspi bus width. 1.14 akm 07/16/21 Enable Quad Mode for Winbond flashes. 1.15 akm 11/19/21 Fix read/write failures on Spansion flash parts. 1.15 akm 12/22/21 Initialize variables before use. 1.16 akm 08/16/22 Fix logical error in NumSect calculation. 1.17 akm 12/16/22 Add timeout in QSPIPSU driver examples. 1.18 sb 05/19/23 Update number of sector calculation logic in flash erase API. 1.18 sb 06/07/23 Added support for system device-tree flow. 1.18 sb 07/24/23 Fix wrong init sequence for spansion byte ID. 1.18 sb 08/02/23 Add status check for XQspiPsu_SetClkPrescaler API. 1.19 sb 01/12/24 Added support to set QSPI clock based on baud rate divisior 1.20 sb 09/13/24 Updated examples to configure correct baud rate value

Functions
int	QspiPsuInterruptFlashExample (XScuGic IntcInstancePtr, XQspiPsu QspiPsuInstancePtr, u16 QspiPsuDeviceId, u16 QspiPsuIntrId)
	The purpose of this function is to illustrate how to use the XQspiPsu device driver in single, parallel and stacked modes using flash devices greater than or equal to 128Mb. More...

int	FlashReadID (XQspiPsu *QspiPsuPtr)
	Reads the flash ID and identifies the flash in FCT table. More...

int	FlashErase (XQspiPsu QspiPsuPtr, u32 Address, u32 ByteCount, u8 WriteBfrPtr)
	This function erases the sectors in the serial Flash connected to the QSPIPSU interface. More...

int	FlashWrite (XQspiPsu QspiPsuPtr, u32 Address, u32 ByteCount, u8 Command, u8 WriteBfrPtr)
	This function writes to the serial Flash connected to the QSPIPSU interface. More...

int	FlashRead (XQspiPsu QspiPsuPtr, u32 Address, u32 ByteCount, u8 Command, u8 WriteBfrPtr, u8 *ReadBfrPtr)
	This function performs a read. More...

int	MultiDieRead (XQspiPsu QspiPsuPtr, u32 Address, u32 ByteCount, u8 Command, u8 WriteBfrPtr, u8 *ReadBfrPtr)
	This function performs a read operation for multi die flash devices. More...

u32	GetRealAddr (XQspiPsu *QspiPsuPtr, u32 Address)
	This functions translates the address based on the type of interconnection. More...

int	BulkErase (XQspiPsu QspiPsuPtr, u8 WriteBfrPtr)
	This functions performs a bulk erase operation when the flash device has a single die. More...

int	DieErase (XQspiPsu QspiPsuPtr, u8 WriteBfrPtr)
	This functions performs a die erase operation on all the die in the flash device. More...

void	QspiPsuHandler (void *CallBackRef, u32 StatusEvent, unsigned int ByteCount)
	Callback handler. More...

int	FlashEnterExit4BAddMode (XQspiPsu *QspiPsuPtr, unsigned int Enable)
	This API enters the flash device into 4 bytes addressing mode. More...

int	FlashEnableQuadMode (XQspiPsu *QspiPsuPtr)
	This API enables Quad mode for the flash parts which require to enable quad mode before using Quad commands. More...

int	main (void)
	Main function to call the QSPIPSU Flash example. More...

Function Documentation

int BulkErase	(	XQspiPsu *	QspiPsuPtr,
		u8 *	WriteBfrPtr
	)

This functions performs a bulk erase operation when the flash device has a single die.

Works for both Spansion and Micron

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
WriteBfrPtr	is the pointer to command+address to be sent

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by FlashErase().

int DieErase	(	XQspiPsu *	QspiPsuPtr,
		u8 *	WriteBfrPtr
	)

This functions performs a die erase operation on all the die in the flash device.

This function uses the die erase command for Micron 512Mbit and 1Gbit

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
WriteBfrPtr	is the pointer to command+address to be sent

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQSPIPSU_CONNECTION_MODE_STACKED, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by FlashErase().

int FlashEnableQuadMode ( XQspiPsu * QspiPsuPtr )

This API enables Quad mode for the flash parts which require to enable quad mode before using Quad commands.

For S25FL-L series flash parts this is required as the default configuration is x1/x2 mode.

Parameters

QspiPsuPtr is a pointer to the QSPIPSU driver component to use.

Returns

XST_SUCCESS if successful.
XST_FAILURE if it fails.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), ISSI_ID_BYTE0, MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), and QspiPsuPolledFlashExample().

int FlashEnterExit4BAddMode	(	XQspiPsu *	QspiPsuPtr,
		unsigned int	Enable
	)

This API enters the flash device into 4 bytes addressing mode.

As per the Micron and ISSI spec, before issuing the command to enter into 4 byte addr mode, a write enable command is issued. For Macronix and Winbond flash parts write enable is not required.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Enable	is a either 1 or 0 if 1 then enters 4 byte if 0 exits.

Returns

XST_SUCCESS if successful.
XST_FAILURE if it fails.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), ISSI_ID_BYTE0, MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), QspiPsuPolledFlashExample(), and QspiPsuWriteProtectFlashExample().

int FlashErase	(	XQspiPsu *	QspiPsuPtr,
		u32	Address,
		u32	ByteCount,
		u8 *	WriteBfrPtr
	)

This function erases the sectors in the serial Flash connected to the QSPIPSU interface.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
WriteBfrPtr	is Pointer to the write buffer (which is to be transmitted)

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
WriteBfrPtr	is pointer to the write buffer (which is to be transmitted)

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References BulkErase(), XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, DieErase(), XQspiPsu_Msg::Flags, GetRealAddr(), MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQSPIPSU_CONNECTION_MODE_STACKED, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, XQSPIPSU_SELECT_FLASH_BUS_LOWER, XQSPIPSU_SELECT_FLASH_CS_LOWER, XQSPIPSU_SELECT_FLASH_CS_UPPER, XQSPIPSU_SELECT_MODE_SPI, and XQspiPsu_SelectFlash().

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), QspiPsuPolledFlashExample(), and QspiPsuWriteProtectFlashExample().

int FlashRead	(	XQspiPsu *	QspiPsuPtr,
		u32	Address,
		u32	ByteCount,
		u8	Command,
		u8 *	WriteBfrPtr,
		u8 *	ReadBfrPtr
	)

This function performs a read.

This function performs read.

Default setting is in DMA mode.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is pointer to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Default setting is in DMA mode.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	is pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is pointer to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

DMA is the default setting.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	is Pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is Pointer to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

DMA is the default setting.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	is pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is pointer to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

DMA is the default setting.

Parameters

QspiPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
Pointer	to the write buffer which contains data to be transmitted
Pointer	to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), MAX_DELAY_CNT, MultiDieRead(), XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, XQSPIPSU_SELECT_MODE_DUALSPI, XQSPIPSU_SELECT_MODE_QUADSPI, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), QspiPsuPolledFlashExample(), and QspiPsuWriteProtectFlashExample().

int FlashReadID ( XQspiPsu * QspiPsuPtr )

Reads the flash ID and identifies the flash in FCT table.

Reads the flash ID information.

Parameters

QspiPsuPtr is a pointer to the QSPIPSU driver component to use.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

QspiPsuPtr is a pointer to the instance of the QspiPsu device.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

None.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu_Msg::Flags, MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), QspiPsuPolledFlashExample(), and QspiPsuWriteProtectFlashExample().

int FlashWrite	(	XQspiPsu *	QspiPsuPtr,
		u32	Address,
		u32	ByteCount,
		u8	Command,
		u8 *	WriteBfrPtr
	)

This function writes to the serial Flash connected to the QSPIPSU interface.

All the data put into the buffer must be in the same page of the device with page boundaries being on 256 byte boundaries.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address to write data to in the Flash.
ByteCount	contains the number of bytes to write.
Command	is the command used to write data to the flash. QSPIPSU device supports only Page Program command to write data to the flash.
WriteBfrPtr	is pointer to the write buffer (which is to be transmitted)

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

All the data put into the buffer must be in the same page of the device with page boundaries being on 256 byte boundaries.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address to write data to in the Flash.
ByteCount	contains the number of bytes to write.
Command	is the command used to write data to the flash. QSPIPSU device supports only Page Program command to write data to the flash.
WriteBfrPtr	is Pointer to the write buffer (which is to be transmitted)

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address to write data to in the Flash.
ByteCount	contains the number of bytes to write.
Command	is the command used to write data to the flash.
Pointer	to the write buffer (which is to be transmitted)

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by QspiPsuFlashNonBlockingReadExample(), QspiPsuInterruptFlashExample(), QspiPsuPolledFlashExample(), and QspiPsuWriteProtectFlashExample().

u32 GetRealAddr	(	XQspiPsu *	QspiPsuPtr,
		u32	Address
	)

This functions translates the address based on the type of interconnection.

In case of stacked, this function asserts the corresponding slave select.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	which is to be accessed (for erase, write or read)

Returns: RealAddr is the translated address - for single it is unchanged; for stacked, the lower flash size is subtracted; for parallel the address is divided by 2.

Note: In addition to get the actual address to work on flash this function also selects the CS and BUS based on the configuration detected.

In case of stacked, this function asserts the corresponding slave select.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	which is to be accessed (for erase, write or read)

Returns: RealAddr is the translated address - for single it is unchanged for stacked, the lower flash size is subtracted; for parallel the address is divided by 2.

Note: In addition to get the actual address to work on flash this function also selects the CS and BUS based on the configuration detected.

References XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQSPIPSU_CONNECTION_MODE_SINGLE, XQSPIPSU_CONNECTION_MODE_STACKED, XQSPIPSU_SELECT_FLASH_BUS_BOTH, XQSPIPSU_SELECT_FLASH_BUS_LOWER, XQSPIPSU_SELECT_FLASH_CS_BOTH, XQSPIPSU_SELECT_FLASH_CS_LOWER, XQSPIPSU_SELECT_FLASH_CS_UPPER, and XQspiPsu_SelectFlash().

Referenced by DieErase(), FlashEnableQuadMode(), FlashEnterExit4BAddMode(), FlashErase(), FlashRead(), FlashWrite(), and MultiDieRead().

int main ( void )

Main function to call the QSPIPSU Flash example.

Returns: XST_SUCCESS if successful, otherwise XST_FAILURE.

Note: None

References QspiPsuInterruptFlashExample().

int MultiDieRead	(	XQspiPsu *	QspiPsuPtr,
		u32	Address,
		u32	ByteCount,
		u8	Command,
		u8 *	WriteBfrPtr,
		u8 *	ReadBfrPtr
	)

This function performs a read operation for multi die flash devices.

This functions performs a read operation for multi die flash devices.

Default setting is in DMA mode.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	is pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is pointer to the read buffer to which valid received data should be written

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

QspiPsuPtr	is a pointer to the QSPIPSU driver component to use.
Address	contains the address of the first sector which needs to be erased.
ByteCount	contains the total size to be erased.
Command	is the command used to read data from the flash. Supports normal, fast, dual and quad read commands.
WriteBfrPtr	is pointer to the write buffer which contains data to be transmitted
ReadBfrPtr	is pointer to the read buffer to which valid received data should be written.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Msg::BusWidth, XQspiPsu_Msg::ByteCount, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, XQspiPsu_Msg::Flags, GetRealAddr(), MAX_DELAY_CNT, XQspiPsu_Msg::RxBfrPtr, XQspiPsu_Msg::TxBfrPtr, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQSPIPSU_CONNECTION_MODE_SINGLE, XQspiPsu_InterruptTransfer(), XQSPIPSU_MSG_FLAG_RX, XQSPIPSU_MSG_FLAG_STRIPE, XQSPIPSU_MSG_FLAG_TX, XQSPIPSU_SELECT_MODE_DUALSPI, XQSPIPSU_SELECT_MODE_QUADSPI, and XQSPIPSU_SELECT_MODE_SPI.

Referenced by FlashRead().

void QspiPsuHandler	(	void *	CallBackRef,
		u32	StatusEvent,
		unsigned int	ByteCount
	)

Callback handler.

Parameters

CallBackRef	is the upper layer callback reference passed back when the callback function is invoked.
StatusEvent	is the event that just occurred.
ByteCount	is the number of bytes transferred up until the event occurred.

Returns: None

Note: None.

Parameters

CallBackRef	is the upper layer callback reference passed back when the callback function is invoked.
StatusEvent	is the event that just occurred.
ByteCount	is the number of bytes transferred up until the event occurred.

Note: None.

Parameters

None.

Returns: None

Note: None.

Referenced by QspiPsuInterruptFlashExample(), and QspiPsuWriteProtectFlashExample().

int QspiPsuInterruptFlashExample	(	XScuGic *	IntcInstancePtr,
		XQspiPsu *	QspiPsuInstancePtr,
		u16	QspiPsuDeviceId,
		u16	QspiPsuIntrId
	)

The purpose of this function is to illustrate how to use the XQspiPsu device driver in single, parallel and stacked modes using flash devices greater than or equal to 128Mb.

The purpose of this function is to illustrate how to use the XQspiPsu device driver using NAND flash devices.

Parameters

IntcInstancePtr	is a pointer to the instance of the Intc device.
QspiPsuInstancePtr	is a pointer to the instance of the QspiPsu device.
QspiPsuDeviceId	is the Device ID of the Qspi Device and is the XPAR_<QSPI_instance>_DEVICE_ID value from xparameters.h.
QspiPsuIntrId	is the interrupt Id for an QSPIPSU device.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

Parameters

None.

Returns: XST_SUCCESS if successful, else XST_FAILURE.

Note: None.

References XQspiPsu_Config::BaseAddress, XQspiPsu_Config::BaudRateDiv, XQspiPsu_Config::BusWidth, XQspiPsu::Config, XQspiPsu_Config::ConnectionMode, FlashEnableQuadMode(), FlashEnterExit4BAddMode(), FlashErase(), FlashRead(), FlashReadID(), FlashWrite(), QspiPsuHandler(), XQspiPsu_CfgInitialize(), XQSPIPSU_CLK_PRESCALE_8, XQSPIPSU_CONNECTION_MODE_PARALLEL, XQspiPsu_InterruptHandler(), XQspiPsu_LookupConfig(), XQSPIPSU_MANUAL_START_OPTION, XQSPIPSU_SELECT_FLASH_BUS_LOWER, XQSPIPSU_SELECT_FLASH_CS_LOWER, XQspiPsu_SelectFlash(), XQspiPsu_SetClkPrescaler(), XQspiPsu_SetOptions(), and XQspiPsu_SetStatusHandler().

Referenced by main().

Overview

Functions

Function Documentation