AM243x MCU+ SDK  10.00.00
ospi/v0/ospi.h File Reference

Introduction

OSPI Driver API/interface file.

Go to the source code of this file.

Data Structures

struct  OSPI_Transaction
 Data structure used with OSPI_Transfers - OSPI_readDirect, OSPI_writeDirect, OSPI_readIndirect, OSPI_writeIndirect. More...
 
struct  OSPI_WriteCmdParams
 
struct  OSPI_ReadCmdParams
 
struct  OSPI_AddrRegion
 OSPI Address Region. More...
 
struct  OSPI_Params
 OSPI Parameters. More...
 
struct  OSPI_PhyWindowParams
 OSPI PHY Tuning Window Parameters. More...
 
struct  OSPI_PhyConfiguration
 OSPI PHY Configuration. More...
 
struct  OSPI_Attrs
 OSPI instance attributes - used during init time. More...
 
struct  OSPI_Object
 OSPI driver object. More...
 
struct  OSPI_Config
 

Macros

#define OSPI_RESETPIN_DQ3   (0U)
 
#define OSPI_RESETPIN_DEDICATED   (1U)
 
#define CSL_OSPI_BAUD_RATE_DIVISOR(x)   (((x) - 2U) >> 1U)
 OSPI controller controller mode baud rate divisor. OSPI baud rate = controller_ref_clk/BD, where BD is: 0000 = /2 0001 = /4 0010 = /6 ... 1111 = /32. More...
 
#define MAX_BAUDRATE_DIVIDER   (32U)
 
#define CSL_OSPI_BAUD_RATE_DIVISOR_DEFAULT   (CSL_OSPI_BAUD_RATE_DIVISOR(MAX_BAUDRATE_DIVIDER))
 
Transfer Status Code

Status codes that are set by the OSPI driver

#define OSPI_TRANSFER_COMPLETED   (0U)
 
#define OSPI_TRANSFER_STARTED   (1U)
 
#define OSPI_TRANSFER_CANCELLED   (2U)
 
#define OSPI_TRANSFER_FAILED   (3U)
 
#define OSPI_TRANSFER_CSN_DEASSERT   (4U)
 
#define OSPI_TRANSFER_TIMEOUT   (5U)
 
Transfer Mode

This determines whether the driver operates synchronously or asynchronously

In OSPI_TRANSFER_MODE_BLOCKING OSPI_Transfers block code execution until the transaction has completed

In OSPI_TRANSFER_MODE_CALLBACK OSPI_Transfers does not block code execution and instead calls a callback function when the transaction has completed

#define OSPI_TRANSFER_MODE_BLOCKING   (0U)
 OSPI_Transfers blocks execution. This mode can only be used when called within a Task context and is interrupt based More...
 
#define OSPI_TRANSFER_MODE_CALLBACK   (1U)
 OSPI_Transfers does not block code execution and will call a callback function. This mode can be used in a Task, Swi, or Hwi context More...
 
#define OSPI_TRANSFER_MODE_POLLING   (2U)
 OSPI_Transfers blocks execution. This mode can only be used when called within a Task context and is polling based. More...
 
Frame Format

Definitions for various SPI data frame formats

POL0 = OSPICLK is held low during the INACTIVE state POL1 = OSPICLK is held high during the INACTIVE state

PHA0 = Data launch is on the falling edge of OSPICLK PHA1 = Data launch is on the rising edge of OSPICLK

#define OSPI_FF_POL0_PHA0   (0U)
 
#define OSPI_FF_POL0_PHA1   (CSL_OSPI_FLASH_CFG_CONFIG_REG_SEL_CLK_PHASE_FLD_MASK | 0U)
 
#define OSPI_FF_POL1_PHA0   (0U | CSL_OSPI_FLASH_CFG_CONFIG_REG_SEL_CLK_POL_FLD_MASK)
 
#define OSPI_FF_POL1_PHA1
 
Macros for invalid commands

Macros for invalid commands

#define OSPI_CMD_INVALID_OPCODE   (0xFFU)
 
#define OSPI_CMD_INVALID_DUMMY   (0xFFU)
 
#define OSPI_CMD_INVALID_ADDR   (0xFFFFFFFFU)
 
Macros for command extension types

Macros for command extension types

#define OSPI_CMD_EXT_TYPE_REPEAT   (0x00U)
 
#define OSPI_CMD_EXT_TYPE_INVERSE   (0x01U)
 
#define OSPI_CMD_EXT_TYPE_NONE   (0x02U)
 
Macros for OSPI protocol types

Macros for protocol types

#define OSPI_NOR_PROTOCOL(cmd, addr, data, dtr)
 
#define OSPI_NOR_PROTOCOL_INVALID   (uint32_t)(0xFFFFFFFF)
 
#define OSPI_NAND_PROTOCOL(cmd, addr, data, dtr)
 
#define OSPI_NAND_PROTOCOL_INVALID   (uint32_t)(0xFFFFFFFF)
 
Chip Selects

Chip selects

#define OSPI_CS0   (0U)
 
#define OSPI_CS1   (1U)
 
#define OSPI_CS2   (2U)
 
#define OSPI_CS3   (3U)
 
#define OSPI_CHIP_SELECT(x)   ((~((1U) << (x))) & 0xFU)
 
Decoder Chip Selects

Decoder Chip selects

#define OSPI_DECODER_SELECT4   ((uint32_t) 0U)
 
#define OSPI_DECODER_SELECT16   ((uint32_t) 1U)
 
OSPI PHY Control Mode

Controls the bypass mode of the Initiator and Target DLLs. If this bit is set, the bypass mode is intended to be used only for debug. 0h = Initiator operational mode DLL works in normal mode of operation where the Target delay line settings are used as fractional delay of the Initiator delay line encoder reading of the number of delays in one cycle. 1h = Bypass mode Initiator DLL is disabled with only 1 delay element in its delay line. The Target delay lines decode delays in absolute delay elements rather than as fractional delays.

#define OSPI_FLASH_CFG_PHY_MASTER_CONTROL_REG_PHY_MASTER_MODE   (0U)
 
#define OSPI_FLASH_CFG_PHY_MASTER_CONTROL_REG_PHY_BYPASS_MODE   (1U)
 
#define OSPI_FLASH_ATTACK_VECTOR_SIZE   (128U)
 
OSPI PHY DLL Lock

Determines if the Initiator delay line locks on a full cycle or half cycle of delay. This bit need not be written by software. Force DLL lock mode with this setting.

#define OSPI_PHY_DLL_FULL_CYCLE_LOCK   ((uint16_t) 0U)
 
#define OSPI_PHY_DLL_HALF_CYCLE_LOCK   ((uint16_t) 1U)
 

Typedefs

typedef void * OSPI_Handle
 A handle that is returned from a OSPI_open() call. More...
 

Functions

void OSPI_init (void)
 This function initializes the OSPI module. More...
 
void OSPI_deinit (void)
 This function de-initializes the OSPI module. More...
 
void OSPI_Params_init (OSPI_Params *ospiParams)
 Initialize data structure with defaults. More...
 
OSPI_Handle OSPI_open (uint32_t index, const OSPI_Params *openParams)
 This function opens a given OSPI peripheral. More...
 
void OSPI_close (OSPI_Handle handle)
 Function to close a OSPI peripheral specified by the OSPI handle. More...
 
OSPI_Handle OSPI_getHandle (uint32_t index)
 This function returns the handle of an open OSPI Instance from the instance index. More...
 
int32_t OSPI_readCmd (OSPI_Handle handle, OSPI_ReadCmdParams *rdParams)
 Function to send specific commands and receive related data from flash. More...
 
int32_t OSPI_writeCmd (OSPI_Handle handle, OSPI_WriteCmdParams *wrParams)
 Function to send specific commands and related data to flash. More...
 
void OSPI_Transaction_init (OSPI_Transaction *trans)
 Function to initialize the OSPI_Transaction structure. More...
 
void OSPI_ReadCmdParams_init (OSPI_ReadCmdParams *rdParams)
 Function to initialize the OSPI_ReadCmdParams structure. More...
 
void OSPI_WriteCmdParams_init (OSPI_WriteCmdParams *wrParams)
 Function to initialize the OSPI_WriteCmdParams structure. More...
 
uint32_t OSPI_getInputClk (OSPI_Handle handle)
 This function returns the input clk frequency OSPI was programmed at. More...
 
uint32_t OSPI_isDacEnable (OSPI_Handle handle)
 This function checks if the Direct Access Controller mode is enabled. More...
 
uint32_t OSPI_isDmaEnable (OSPI_Handle handle)
 This function checks if DMA is enabled for reads. More...
 
uint32_t OSPI_isIntrEnable (OSPI_Handle handle)
 This function checks if interrupts are enabled. More...
 
uint32_t OSPI_isPhyEnable (OSPI_Handle handle)
 This function checks if the OSPI PHY controller is enabled. More...
 
uint32_t OSPI_isDtrEnable (OSPI_Handle handle)
 This function checks if the Dual Transfer Rate (Sampling on both rising and falling edge of the clock) is enabled. More...
 
int32_t OSPI_enableDDR (OSPI_Handle handle)
 This function enables the Dual Data Rate (DDR) More...
 
int32_t OSPI_enableSDR (OSPI_Handle handle)
 This function enables the Single Data Rate (SDR) More...
 
int32_t OSPI_enableDdrRdCmds (OSPI_Handle handle)
 This function sets DDR bit in INSTR_RD register for RD commands. More...
 
int32_t OSPI_setRdDataCaptureDelay (OSPI_Handle handle, uint32_t rdDataCapDelay)
 This function sets read data capture cycles in the OSPI controller. More...
 
void OSPI_setNumAddrBytes (OSPI_Handle handle, uint32_t numAddrBytes)
 This function set the number of bytes used to send address while reading or writing to flash memory. More...
 
void OSPI_setDeviceSize (OSPI_Handle handle, uint32_t pageSize, uint32_t blkSize)
 This function sets the block size and page size of the flash to the device size register in OSPI. More...
 
void OSPI_setCmdDummyCycles (OSPI_Handle handle, uint32_t cmdDummyCycles)
 This function sets appropriate dummy cycles to be used while sending STIG commands to flash. More...
 
void OSPI_setReadDummyCycles (OSPI_Handle handle, uint32_t dummyCycles)
 This function sets appropriate dummy cycles for flash read. More...
 
void OSPI_setPhyEnableSuccess (OSPI_Handle handle, uint32_t success)
 This function sets the phyEnableSuccess field in OSPI_Object. Has to be called from flash driver. More...
 
void OSPI_setModeBits (OSPI_Handle handle, uint32_t modeBits)
 This function sets mode bits in the mode bit field of OSPI config register. More...
 
void OSPI_enableModeBitsCmd (OSPI_Handle handle)
 This function enables mode bits transmission while sending CMDs. More...
 
void OSPI_enableModeBitsRead (OSPI_Handle handle)
 This function enables mode bits transmission while reading. More...
 
uint32_t OSPI_getPhyEnableSuccess (OSPI_Handle handle)
 This function fetches the phyEnableSuccess field in OSPI_Object. More...
 
void OSPI_cmdModeBitSet (OSPI_Handle handle, uint32_t enable)
 This function sets command mode bit. More...
 
void OSPI_rdModeBitSet (OSPI_Handle handle, uint32_t enable)
 This function sets Read mode bit. More...
 
uint32_t OSPI_getProtocol (OSPI_Handle handle)
 This function returns the current protocol for which the transfer lines in OSPI driver is configured for. More...
 
void OSPI_setProtocol (OSPI_Handle handle, uint32_t protocol)
 This function sets the number of transfer lines in the OSPI driver to set the requested protocol. More...
 
void OSPI_setDualOpCodeMode (OSPI_Handle handle)
 This function sets OSPI controller to use dual byte opcodes. More...
 
void OSPI_clearDualOpCodeMode (OSPI_Handle handle)
 This function sets OSPI controller to not use dual byte opcodes. More...
 
void OSPI_setXferOpCodes (OSPI_Handle handle, uint8_t readCmd, uint8_t pageProgCmd)
 This function sets the opcodes for reading and page programming the flash. More...
 
void OSPI_setCmdExtType (OSPI_Handle handle, uint32_t cmdExtType)
 This function sets the type of command extension used in dual byte opcode mode. More...
 
int32_t OSPI_enableDacMode (OSPI_Handle handle)
 This function enables the Direct Access Mode. More...
 
int32_t OSPI_disableDacMode (OSPI_Handle handle)
 This function disables the Direct Access Mode. More...
 
uint32_t OSPI_getFlashDataBaseAddr (OSPI_Handle handle)
 This function gets the SOC mapped data base address of the flash. More...
 
int32_t OSPI_phyTuneDDR (OSPI_Handle handle, uint32_t flashOffset)
 This function tunes the OSPI PHY for DDR mode to set optimal PHY parameters. More...
 
int32_t OSPI_phyTuneSDR (OSPI_Handle handle, uint32_t flashOffset)
 
int32_t OSPI_phyTuneGrapher (OSPI_Handle handle, uint32_t flashOffset, uint8_t arrays[4][128][128])
 This function takes a 4x128x128 array and fills it with TX RX DLL data for graphing purpose. More...
 
void OSPI_phyGetTuningData (uint32_t *tuningData, uint32_t *tuningDataSize)
 This function returns the address to the attack vector buf required for tuning the PHY. More...
 
int32_t OSPI_phyReadAttackVector (OSPI_Handle handle, uint32_t offset)
 This function checks if the attack vector, or the data used for tuning the PHY is present at an offset in the flash. More...
 
int32_t OSPI_enablePhy (OSPI_Handle handle)
 This function enables the PHY. More...
 
int32_t OSPI_disablePhy (OSPI_Handle handle)
 This function disables the PHY. More...
 
int32_t OSPI_enablePhyPipeline (OSPI_Handle handle)
 This function enables the PHY Pipeline. More...
 
int32_t OSPI_disablePhyPipeline (OSPI_Handle handle)
 This function disables the PHY Pipeline. More...
 
int32_t OSPI_norFlashInit1s1s1s (OSPI_Handle handle)
 This function initializes the NOR flash to work in 1-1-1 mode. More...
 
void OSPI_norFlashSetCmds (uint8_t rdCmd, uint8_t wrCmd, uint8_t eraseCmd)
 This function sets up internal bookkeeping variables for read, write and erase commands. This API has to be called immediately before OSPI_norFlashInit1s1s1s. More...
 
int32_t OSPI_norFlashReadId (OSPI_Handle handle, uint32_t *manufacturerId, uint32_t *deviceId)
 This function tries to read the JEDEC ID from the NOR flash connected to the OSPI peripheral. More...
 
int32_t OSPI_norFlashWrite (OSPI_Handle handle, uint32_t offset, uint8_t *buf, uint32_t len)
 This function writes data to the flash at a specified offset. More...
 
int32_t OSPI_norFlashRead (OSPI_Handle handle, uint32_t offset, uint8_t *buf, uint32_t len)
 This function reads data from the flash from a specified offset. More...
 
int32_t OSPI_norFlashReadSfdp (OSPI_Handle handle, uint32_t offset, uint8_t *buf, uint32_t len)
 This function reads SFDP table from the flash from a specified offset. More...
 
int32_t OSPI_norFlashErase (OSPI_Handle handle, uint32_t address)
 This function erases 1 block of data starting from a provided address. More...
 
int32_t OSPI_configResetPin (OSPI_Handle handle, uint32_t config)
 This function configures reset functionality. More...
 
int32_t OSPI_configBaudrate (OSPI_Handle handle, uint32_t baud)
 Configures baud divider. More...
 
int32_t OSPI_readBaudRateDivFromReg (OSPI_Handle handle, uint32_t *baudDiv)
 Return value of baudrate that is programmed in IP register. More...
 
int32_t OSPI_getBaudRateDivFromObj (OSPI_Handle handle, uint32_t *baudDiv)
 Return value of baudrate that is saved in OSPI Object. More...
 
Different OSPI Transfer functions

int32_t OSPI_readDirect (OSPI_Handle handle, OSPI_Transaction *trans)
 Function to perform direct reads from the flash using DAC controller. More...
 
int32_t OSPI_readIndirect (OSPI_Handle handle, OSPI_Transaction *trans)
 Function to perform indirect reads from the flash using INDAC controller. More...
 
int32_t OSPI_writeDirect (OSPI_Handle handle, OSPI_Transaction *trans)
 Function to perform direct writes to the flash using DAC controller. More...
 
int32_t OSPI_writeIndirect (OSPI_Handle handle, OSPI_Transaction *trans)
 Function to perform indirect writes to the flash using INDAC controller. More...
 

Variables

OSPI_Config gOspiConfig []
 Externally defined driver configuration array. More...
 
uint32_t gOspiConfigNum
 Externally defined driver configuration array size. More...