jt_flash_amd.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <sys/time.h>
#include "dbg_msg.h"
#include "jt_arm.h"
#include "jt_instr.h"
#include "jt_flash.h"
#include "convert.h"

Functions

uint8_t jt_amdflashReadResetByte (uint32_t base_address, uint32_t address)
void jt_amdflashResetByte (uint32_t base_address)
int jt_amdflashProgByte (uint32_t base_address, uint32_t address, uint8_t data, unsigned wait)
int jt_amdflashProgByte_faster (uint32_t base_address, uint32_t address, uint8_t *data, int numberOfData, unsigned verify)
int jt_amdflashEraseSectorByte (uint32_t base_address, uint32_t address)
uint16_t jt_amdflashReadResetHalfword (uint32_t base_address, uint32_t address)
void jt_amdflashResetHalfword (uint32_t base_address)
int jt_amdflashProgHalfword (uint32_t base_address, uint32_t address, uint16_t data, unsigned wait)
int jt_amdflashProgHalfword_faster (uint32_t base_address, uint32_t address, uint16_t *data, int numberOfData, unsigned verify)
int jt_amdflashEraseSectorHalfword (uint32_t base_address, uint32_t address)
uint32_t jt_amdflashReadResetWord (uint32_t base_address, uint32_t address)
void jt_amdflashResetWord (uint32_t base_address)
int jt_amdflashProgWord (uint32_t base_address, uint32_t address, uint32_t data, unsigned wait)
int jt_amdflashProgWord_faster (uint32_t base_address, uint32_t address, uint32_t *data, int numberOfData, unsigned verify)
int jt_amdflashEraseSectorWord (uint32_t base_address, uint32_t address)

Detailed Description

Flash support functions

Function Documentation

uint8_t jt_amdflashReadResetByte	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to reset Flash back into Read Mode

Parameters:

	base_address	flash base address
	address	byte address to read

Returns:: 8-bit data at address

References jtag_arm_ReadByte(), and jtag_arm_WriteByte().

void jt_amdflashResetByte ( uint32_t base_address )

Support Function to reset Flash back into Read Mode

Parameters:

base_address

flash base address

Returns:: -

References jtag_arm_WriteByte().

Referenced by programFlashCB_write_sector().

int jt_amdflashProgByte	(	uint32_t	base_address,
		uint32_t	address,
		uint8_t	data,
		unsigned	wait
	)

Support Function to write one Byte to the Flash.
This is OK after an erase of a Sector.

Parameters:

	base_address	flash base address
	address	byte address to write
	data	8-bit data value
	wait	if true wait for completion

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, jtag_arm_ReadByte(), and jtag_arm_WriteByte().

Referenced by prog_flash_amd8().

int jt_amdflashProgByte_faster	(	uint32_t	base_address,
		uint32_t	address,
		uint8_t *	data,
		int	numberOfData,
		unsigned	verify
	)

Support Function to write a number of bytes to the Flash.
This is OK after an erase of a Sector.

Parameters:

	base_address	flash base address
	address	byte address to write
	data	pointer to source data buffer
	numberOfData	number of byte data to write
	verify	if true wait for completion

Return values:

	0	success
	1	error

References ARM_LDMIA, ARM_LDRB, ARM_NOP, ARM_STMIA, ARM_STRB, convertDiffTimeToMsec, DBG_LEVEL_GDB_ARM_WARN, dbgPrintf(), DEBUG_REPEAT_SPEED, DEBUG_SPEED, instr_intest, INTEST, jtag_arm7_mov_chain1_data(), jtag_arm_chain1_sysspeed_restart(), jtag_arm_set_chain(), jtag_arm_WriteByte(), jtag_send_instr(), READ_WRITE, scan_chain, SYSTEM_SPEED, and WRITE_ONLY.

Referenced by prog_flash_amd8().

int jt_amdflashEraseSectorByte	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to Erase a Sector within the Flash

Parameters:

	base_address	First address of the Flash that has to be erased
	address	Addres within the sector which has to to be erased

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, jtag_arm_ReadByte(), and jtag_arm_WriteByte().

Referenced by eraseFlashCB_sector(), and programFlashCB_write_sector().

uint16_t jt_amdflashReadResetHalfword	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to reset Flash back into Read Mode
Note: Address Bit A0 is always ignored due to Halfword access
At a 16 Bit Flash Data Bits D15-D8 are ignored
At two 8 Bit Flashes the command is always xmit'ed to both parts

Parameters:

	base_address	flash base address
	address	byte address to read

Returns:: 16-bit data at address

References jtag_arm_ReadHalfword(), and jtag_arm_WriteHalfword().

void jt_amdflashResetHalfword ( uint32_t base_address )

Support Function to reset Flash back into Read Mode
Note: Address Bit A0 is always ignored due to Halfword access
At a 16 Bit Flash Data Bits D15-D8 are ignored
At two 8 Bit Flashes the command is always xmit'ed to both parts

Parameters:

base_address

flash base address

Returns:: -

References jtag_arm_WriteHalfword().

Referenced by programFlashCB_write_sector().

int jt_amdflashProgHalfword	(	uint32_t	base_address,
		uint32_t	address,
		uint16_t	data,
		unsigned	wait
	)

Support Function to write one Halfword to the Flash.
Note: Address Bit A0 must be 0 always ,due to Halfword access

Parameters:

	base_address	flash base address
	address	byte address to write
	data	16-bit data value
	wait	if true wait for completion

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, jtag_arm_ReadHalfword(), and jtag_arm_WriteHalfword().

Referenced by prog_flash_amd16().

int jt_amdflashProgHalfword_faster	(	uint32_t	base_address,
		uint32_t	address,
		uint16_t *	data,
		int	numberOfData,
		unsigned	verify
	)

Support Function to write a number of half words to the Flash.
This is OK after an erase of a Sector.

Parameters:

	base_address	flash base address
	address	Halfword address to write
	data	pointer to source data buffer
	numberOfData	number of byte data to write
	verify	if true wait for completion

Return values:

	0	success
	1	error

References ARM_LDMIA, ARM_LDRH, ARM_NOP, ARM_STMIA, ARM_STRH, convertDiffTimeToMsec, DBG_LEVEL_GDB_ARM_WARN, dbgPrintf(), DEBUG_REPEAT_SPEED, DEBUG_SPEED, instr_intest, INTEST, jtag_arm7_mov_chain1_data(), jtag_arm_chain1_sysspeed_restart(), jtag_arm_set_chain(), jtag_arm_WriteHalfword(), jtag_send_instr(), READ_WRITE, scan_chain, SYSTEM_SPEED, and WRITE_ONLY.

Referenced by prog_flash_amd16().

int jt_amdflashEraseSectorHalfword	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to Erase a Sector within the Flash

Parameters:

	base_address	First address of the Flash that has to be erased
	address	Addres within the sector which has to to be erased

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, DBG_LEVEL_JTAG_ARM_LOW, dbgPrintf(), jtag_arm_ReadHalfword(), and jtag_arm_WriteHalfword().

Referenced by eraseFlashCB_sector(), and programFlashCB_write_sector().

uint32_t jt_amdflashReadResetWord	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to reset Flash back into Read Mode
Note: Address Bit A0 and A1 is always ignored due to Word access
At a 16 Bit Flash Data Bits D15-D8 are ignored (we might have two of them)
At four 8 Bit Flashes the command is always xmit'ed to all parts

Parameters:

	base_address	flash base address
	address	byte address to read

Returns:: 32-bit data at address

References jtag_arm_ReadWord(), and jtag_arm_WriteWord().

void jt_amdflashResetWord ( uint32_t base_address )

Support Function to reset Flash back into Read Mode
Note: Address Bit A0 and A1 is always ignored due to Word access
At a 16 Bit Flash Data Bits D15-D8 are ignored (we might have two of them)
At four 8 Bit Flashes the command is always xmit'ed to all parts

Parameters:

base_address

flash base address

Returns:: -

References jtag_arm_WriteWord().

Referenced by programFlashCB_write_sector().

int jt_amdflashProgWord	(	uint32_t	base_address,
		uint32_t	address,
		uint32_t	data,
		unsigned	wait
	)

Support Function to write one Word to the Flash.
This is OK after an erase of a Sector.
Note: Address Bit A0 and A1 must always be 0 ,due to Word access

Parameters:

	base_address	flash base address
	address	byte address to write
	data	32-bit data value
	wait	if true wait for completion

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, jtag_arm_ReadWord(), and jtag_arm_WriteWord().

Referenced by prog_flash_amd32().

int jt_amdflashProgWord_faster	(	uint32_t	base_address,
		uint32_t	address,
		uint32_t *	data,
		int	numberOfData,
		unsigned	verify
	)

Support Function to write an number of words to the Flash.
This is OK after an erase of a Sector.

Parameters:

	base_address	flash base address
	address	Word address to write
	data	pointer to source data buffer
	numberOfData	number of 32-bit word data to write
	verify	if true wait for completion

Return values:

	0	success
	1	error

References ARM_LDMIA, ARM_LDRH, ARM_NOP, ARM_STMIA, ARM_STR, convertDiffTimeToMsec, DBG_LEVEL_GDB_ARM_WARN, dbgPrintf(), DEBUG_REPEAT_SPEED, DEBUG_SPEED, instr_intest, INTEST, jtag_arm7_mov_chain1_data(), jtag_arm_chain1_sysspeed_restart(), jtag_arm_set_chain(), jtag_arm_WriteWord(), jtag_send_instr(), READ_WRITE, scan_chain, SYSTEM_SPEED, and WRITE_ONLY.

Referenced by prog_flash_amd32().

int jt_amdflashEraseSectorWord	(	uint32_t	base_address,
		uint32_t	address
	)

Support Function to Erase a Sector within the Flash

Parameters:

	base_address	First address of the Flash that has to be erased
	address	Addres within the sector which has to to be erased

Return values:

	0	success
	1	error

References convertDiffTimeToMsec, jtag_arm_ReadWord(), and jtag_arm_WriteWord().

Referenced by eraseFlashCB_sector(), and programFlashCB_write_sector().