split flash.h into into flash/nor/*.h
Move the bulk of the flash.h file into flash/nor/core.h, leaving an empty husk that will be removed in the next patch. The NOR driver structure is an implementation detail, so move it into its own private header file <flash/nor/driver.h> along with helper declaration for finding them by name.
This commit is contained in:
Zachary T Welch
parent
d9dc604a4d
commit
ae6374e25d
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@ -26,326 +26,8 @@
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#ifndef FLASH_H
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#ifndef FLASH_H
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#define FLASH_H
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#define FLASH_H
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#include <flash/common.h>
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// this file will be removed
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struct image;
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#include <flash/nor/core.h>
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#define FLASH_MAX_ERROR_STR (128)
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/**
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* Describes the geometry and status of a single flash sector
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* within a flash bank. A single bank typically consists of multiple
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* sectors, each of which can be erased and protected independently.
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*/
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struct flash_sector
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{
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/// Bus offset from start of the flash chip (in bytes).
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uint32_t offset;
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/// Number of bytes in this flash sector.
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uint32_t size;
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/**
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* Indication of erasure status: 0 = not erased, 1 = erased,
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* other = unknown. Set by @c flash_driver_s::erase_check.
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*/
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int is_erased;
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/**
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* Indication of protection status: 0 = unprotected/unlocked,
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* 1 = protected/locked, other = unknown. Set by
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* @c flash_driver_s::protect_check.
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*/
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int is_protected;
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};
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struct flash_bank;
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#define __FLASH_BANK_COMMAND(name) \
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COMMAND_HELPER(name, struct flash_bank *bank)
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/**
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* @brief Provides the implementation-independent structure that defines
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* all of the callbacks required by OpenOCD flash drivers.
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*
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* Driver authors must implement the routines defined here, providing an
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* instance with the fields filled out. After that, the instance must
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* be registered in flash.c, so it can be used by the driver lookup system.
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*
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* Specifically, the user can issue the command: @par
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* @code
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* flash bank DRIVERNAME ...parameters...
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* @endcode
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*
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* OpenOCD will search for the driver with a @c flash_driver_s::name
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* that matches @c DRIVERNAME.
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*
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* The flash subsystem calls some of the other drivers routines a using
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* corresponding static <code>flash_driver_<i>callback</i>()</code>
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* routine in flash.c.
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*/
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struct flash_driver
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{
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/**
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* Gives a human-readable name of this flash driver,
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* This field is used to select and initialize the driver.
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*/
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char *name;
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/**
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* An array of driver-specific commands to register. When called
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* during the "flash bank" command, the driver can register addition
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* commands to support new flash chip functions.
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*/
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const struct command_registration *commands;
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/**
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* Finish the "flash bank" command for @a bank. The
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* @a bank parameter will have been filled in by the core flash
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* layer when this routine is called, and the driver can store
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* additional information in its struct flash_bank::driver_priv field.
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*
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* The CMD_ARGV are: @par
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* @code
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* CMD_ARGV[0] = bank
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* CMD_ARGV[1] = drivername {name above}
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* CMD_ARGV[2] = baseaddress
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* CMD_ARGV[3] = lengthbytes
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* CMD_ARGV[4] = chip_width_in bytes
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* CMD_ARGV[5] = bus_width_bytes
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* CMD_ARGV[6] = driver-specific parameters
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* @endcode
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*
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* For example, CMD_ARGV[4] = 16 bit flash, CMD_ARGV[5] = 32bit bus.
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*
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* If extra arguments are provided (@a CMD_ARGC > 6), they will
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* start in @a CMD_ARGV[6]. These can be used to implement
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* driver-specific extensions.
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*
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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__FLASH_BANK_COMMAND((*flash_bank_command));
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/**
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* Bank/sector erase routine (target-specific). When
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* called, the flash driver should erase the specified sectors
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* using whatever means are at its disposal.
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*
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* @param bank The bank of flash to be erased.
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* @param first The number of the first sector to erase, typically 0.
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* @param last The number of the last sector to erase, typically N-1.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*erase)(struct flash_bank *bank, int first, int last);
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/**
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* Bank/sector protection routine (target-specific).
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* When called, the driver should disable 'flash write' bits (or
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* enable 'erase protection' bits) for the given @a bank and @a
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* sectors.
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*
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* @param bank The bank to protect or unprotect.
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* @param set If non-zero, enable protection; if 0, disable it.
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* @param first The first sector to (un)protect, typicaly 0.
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* @param last The last sector to (un)project, typically N-1.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*protect)(struct flash_bank *bank, int set, int first, int last);
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/**
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* Program data into the flash. Note CPU address will be
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* "bank->base + offset", while the physical address is
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* dependent upon current target MMU mappings.
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*
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* @param bank The bank to program
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* @param buffer The data bytes to write.
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* @param offset The offset into the chip to program.
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* @param count The number of bytes to write.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*write)(struct flash_bank *bank,
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uint8_t *buffer, uint32_t offset, uint32_t count);
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/**
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* Probe to determine what kind of flash is present.
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* This is invoked by the "probe" script command.
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*
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* @param bank The bank to probe
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*probe)(struct flash_bank *bank);
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/**
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* Check the erasure status of a flash bank.
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* When called, the driver routine must perform the required
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* checks and then set the @c flash_sector_s::is_erased field
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* for each of the flash banks's sectors.
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*
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* @param bank The bank to check
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*erase_check)(struct flash_bank *bank);
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/**
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* Determine if the specific bank is "protected" or not.
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* When called, the driver routine must must perform the
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* required protection check(s) and then set the @c
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* flash_sector_s::is_protected field for each of the flash
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* bank's sectors.
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*
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* @param bank - the bank to check
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*protect_check)(struct flash_bank *bank);
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/**
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* Display human-readable information about the flash
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* bank into the given buffer. Drivers must be careful to avoid
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* overflowing the buffer.
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*
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* @param bank - the bank to get info about
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* @param char - where to put the text for the human to read
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* @param buf_size - the size of the human buffer.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*info)(struct flash_bank *bank, char *buf, int buf_size);
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/**
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* A more gentle flavor of filash_driver_s::probe, performing
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* setup with less noise. Generally, driver routines should test
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* to seee if the bank has already been probed; if it has, the
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* driver probably should not perform its probe a second time.
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*
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* This callback is often called from the inside of other
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* routines (e.g. GDB flash downloads) to autoprobe the flash as
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* it is programing the flash.
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*
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* @param bank - the bank to probe
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int (*auto_probe)(struct flash_bank *bank);
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};
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#define FLASH_BANK_COMMAND_HANDLER(name) static __FLASH_BANK_COMMAND(name)
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/**
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* Provides details of a flash bank, available either on-chip or through
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* a major interface.
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*
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* This structure will be passed as a parameter to the callbacks in the
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* flash_driver_s structure, some of which may modify the contents of
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* this structure of the area of flash that it defines. Driver writers
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* may use the @c driver_priv member to store additional data on a
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* per-bank basis, if required.
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*/
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struct flash_bank
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{
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char *name;
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struct target *target; /**< Target to which this bank belongs. */
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struct flash_driver *driver; /**< Driver for this bank. */
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void *driver_priv; /**< Private driver storage pointer */
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int bank_number; /**< The 'bank' (or chip number) of this instance. */
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uint32_t base; /**< The base address of this bank */
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uint32_t size; /**< The size of this chip bank, in bytes */
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int chip_width; /**< Width of the chip in bytes (1,2,4 bytes) */
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int bus_width; /**< Maximum bus width, in bytes (1,2,4 bytes) */
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/**
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* The number of sectors on this chip. This value will
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* be set intially to 0, and the flash driver must set this to
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* some non-zero value during "probe()" or "auto_probe()".
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*/
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int num_sectors;
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/// Array of sectors, allocated and initilized by the flash driver
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struct flash_sector *sectors;
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struct flash_bank *next; /**< The next flash bank on this chip */
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};
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/// Registers the 'flash' subsystem commands
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int flash_register_commands(struct command_context *cmd_ctx);
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/// Initializes the 'flash' subsystem drivers
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int flash_init_drivers(struct command_context *cmd_ctx);
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/**
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* Erases @a length bytes in the @a target flash, starting at @a addr.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int flash_erase_address_range(struct target *target,
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uint32_t addr, uint32_t length);
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/**
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* Writes @a image into the @a target flash. The @a written parameter
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* will contain the
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* @param target The target with the flash to be programmed.
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* @param image The image that will be programmed to flash.
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* @param written On return, contains the number of bytes written.
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* @param erase If non-zero, indicates the flash driver should first
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* erase the corresponding banks or sectors before programming.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int flash_write(struct target *target,
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struct image *image, uint32_t *written, int erase);
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/**
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* Forces targets to re-examine their erase/protection state.
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* This routine must be called when the system may modify the status.
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*/
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void flash_set_dirty(void);
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/// @returns The number of flash banks currently defined.
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int flash_get_bank_count(void);
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/**
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* Provides default erased-bank check handling. Checks to see if
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* the flash driver knows they are erased; if things look uncertain,
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* this routine will call default_flash_mem_blank_check() to confirm.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int default_flash_blank_check(struct flash_bank *bank);
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/**
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* Provides a default blank flash memory check. Ensures the contents
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* of the given bank have truly been erased.
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* @param bank The flash bank.
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* @returns ERROR_OK if successful; otherwise, an error code.
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*/
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int default_flash_mem_blank_check(struct flash_bank *bank);
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/**
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* Returns the flash bank specified by @a name, which matches the
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* driver name and a suffix (option) specify the driver-specific
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* bank number. The suffix consists of the '.' and the driver-specific
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* bank number: when two str9x banks are defined, then 'str9x.1' refers
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* to the second.
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*/
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struct flash_bank *get_flash_bank_by_name(const char *name);
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/**
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* Returns a flash bank by the specified flash_bank_s bank_number, @a num.
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* @param num The flash bank number.
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* @returns A struct flash_bank for flash bank @a num, or NULL
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*/
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struct flash_bank *get_flash_bank_by_num(int num);
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/**
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* Retreives @a bank from a command argument, reporting errors parsing
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* the bank identifier or retreiving the specified bank. The bank
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* may be identified by its bank number or by @c name.instance, where
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* @a instance is driver-specific.
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* @param name_index The index to the string in args containing the
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* bank identifier.
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* @param bank On output, contians a pointer to the bank or NULL.
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* @returns ERROR_OK on success, or an error indicating the problem.
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*/
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COMMAND_HELPER(flash_command_get_bank, unsigned name_index,
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struct flash_bank **bank);
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/**
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* Returns the flash bank like get_flash_bank_by_num(), without probing.
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* @param num The flash bank number.
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* @returns A struct flash_bank for flash bank @a num, or NULL.
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*/
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struct flash_bank *get_flash_bank_by_num_noprobe(int num);
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/**
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* Returns the flash bank located at a specified address.
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* @param target The target, presumed to contain one or more banks.
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* @param addr An address that is within the range of the bank.
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* @returns The struct flash_bank located at @a addr, or NULL.
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*/
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struct flash_bank *get_flash_bank_by_addr(struct target *target, uint32_t addr);
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#endif /* FLASH_H */
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#endif /* FLASH_H */
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@ -34,6 +34,7 @@ noinst_HEADERS = \
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avrf.h \
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avrf.h \
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core.h \
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core.h \
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cfi.h \
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cfi.h \
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driver.h \
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imp.h \
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imp.h \
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lpc2000.h \
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lpc2000.h \
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lpc288x.h \
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lpc288x.h \
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@ -1,4 +1,7 @@
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/***************************************************************************
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/***************************************************************************
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* Copyright (C) 2005 by Dominic Rath <Dominic.Rath@gmx.de> *
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||||||
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* Copyright (C) 2007,2008 Øyvind Harboe <oyvind.harboe@zylin.com> *
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* Copyright (C) 2008 by Spencer Oliver <spen@spen-soft.co.uk> *
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* Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
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* Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
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* *
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* *
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||||||
* This program is free software; you can redistribute it and/or modify *
|
* This program is free software; you can redistribute it and/or modify *
|
||||||
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|
@ -19,13 +22,157 @@
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#ifndef FLASH_NOR_CORE_H
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#ifndef FLASH_NOR_CORE_H
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#define FLASH_NOR_CORE_H
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#define FLASH_NOR_CORE_H
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|
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#include <flash/flash.h>
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#include <flash/common.h>
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|
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struct image;
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|
|
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|
#define FLASH_MAX_ERROR_STR (128)
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|
|
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/**
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/**
|
||||||
* Find a NOR flash driver by its name.
|
* Describes the geometry and status of a single flash sector
|
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* @param name The name of the requested driver.
|
* within a flash bank. A single bank typically consists of multiple
|
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* @returns The flash_driver called @c name, or NULL if not found.
|
* sectors, each of which can be erased and protected independently.
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*/
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*/
|
||||||
struct flash_driver *flash_driver_find_by_name(const char *name);
|
struct flash_sector
|
||||||
|
{
|
||||||
|
/// Bus offset from start of the flash chip (in bytes).
|
||||||
|
uint32_t offset;
|
||||||
|
/// Number of bytes in this flash sector.
|
||||||
|
uint32_t size;
|
||||||
|
/**
|
||||||
|
* Indication of erasure status: 0 = not erased, 1 = erased,
|
||||||
|
* other = unknown. Set by @c flash_driver_s::erase_check.
|
||||||
|
*/
|
||||||
|
int is_erased;
|
||||||
|
/**
|
||||||
|
* Indication of protection status: 0 = unprotected/unlocked,
|
||||||
|
* 1 = protected/locked, other = unknown. Set by
|
||||||
|
* @c flash_driver_s::protect_check.
|
||||||
|
*/
|
||||||
|
int is_protected;
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Provides details of a flash bank, available either on-chip or through
|
||||||
|
* a major interface.
|
||||||
|
*
|
||||||
|
* This structure will be passed as a parameter to the callbacks in the
|
||||||
|
* flash_driver_s structure, some of which may modify the contents of
|
||||||
|
* this structure of the area of flash that it defines. Driver writers
|
||||||
|
* may use the @c driver_priv member to store additional data on a
|
||||||
|
* per-bank basis, if required.
|
||||||
|
*/
|
||||||
|
struct flash_bank
|
||||||
|
{
|
||||||
|
char *name;
|
||||||
|
|
||||||
|
struct target *target; /**< Target to which this bank belongs. */
|
||||||
|
|
||||||
|
struct flash_driver *driver; /**< Driver for this bank. */
|
||||||
|
void *driver_priv; /**< Private driver storage pointer */
|
||||||
|
|
||||||
|
int bank_number; /**< The 'bank' (or chip number) of this instance. */
|
||||||
|
uint32_t base; /**< The base address of this bank */
|
||||||
|
uint32_t size; /**< The size of this chip bank, in bytes */
|
||||||
|
|
||||||
|
int chip_width; /**< Width of the chip in bytes (1,2,4 bytes) */
|
||||||
|
int bus_width; /**< Maximum bus width, in bytes (1,2,4 bytes) */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* The number of sectors on this chip. This value will
|
||||||
|
* be set intially to 0, and the flash driver must set this to
|
||||||
|
* some non-zero value during "probe()" or "auto_probe()".
|
||||||
|
*/
|
||||||
|
int num_sectors;
|
||||||
|
/// Array of sectors, allocated and initilized by the flash driver
|
||||||
|
struct flash_sector *sectors;
|
||||||
|
|
||||||
|
struct flash_bank *next; /**< The next flash bank on this chip */
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Registers the 'flash' subsystem commands
|
||||||
|
int flash_register_commands(struct command_context *cmd_ctx);
|
||||||
|
/// Initializes the 'flash' subsystem drivers
|
||||||
|
int flash_init_drivers(struct command_context *cmd_ctx);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Erases @a length bytes in the @a target flash, starting at @a addr.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int flash_erase_address_range(struct target *target,
|
||||||
|
uint32_t addr, uint32_t length);
|
||||||
|
/**
|
||||||
|
* Writes @a image into the @a target flash. The @a written parameter
|
||||||
|
* will contain the
|
||||||
|
* @param target The target with the flash to be programmed.
|
||||||
|
* @param image The image that will be programmed to flash.
|
||||||
|
* @param written On return, contains the number of bytes written.
|
||||||
|
* @param erase If non-zero, indicates the flash driver should first
|
||||||
|
* erase the corresponding banks or sectors before programming.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int flash_write(struct target *target,
|
||||||
|
struct image *image, uint32_t *written, int erase);
|
||||||
|
/**
|
||||||
|
* Forces targets to re-examine their erase/protection state.
|
||||||
|
* This routine must be called when the system may modify the status.
|
||||||
|
*/
|
||||||
|
void flash_set_dirty(void);
|
||||||
|
/// @returns The number of flash banks currently defined.
|
||||||
|
int flash_get_bank_count(void);
|
||||||
|
/**
|
||||||
|
* Provides default erased-bank check handling. Checks to see if
|
||||||
|
* the flash driver knows they are erased; if things look uncertain,
|
||||||
|
* this routine will call default_flash_mem_blank_check() to confirm.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int default_flash_blank_check(struct flash_bank *bank);
|
||||||
|
/**
|
||||||
|
* Provides a default blank flash memory check. Ensures the contents
|
||||||
|
* of the given bank have truly been erased.
|
||||||
|
* @param bank The flash bank.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int default_flash_mem_blank_check(struct flash_bank *bank);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Returns the flash bank specified by @a name, which matches the
|
||||||
|
* driver name and a suffix (option) specify the driver-specific
|
||||||
|
* bank number. The suffix consists of the '.' and the driver-specific
|
||||||
|
* bank number: when two str9x banks are defined, then 'str9x.1' refers
|
||||||
|
* to the second.
|
||||||
|
*/
|
||||||
|
struct flash_bank *get_flash_bank_by_name(const char *name);
|
||||||
|
/**
|
||||||
|
* Returns a flash bank by the specified flash_bank_s bank_number, @a num.
|
||||||
|
* @param num The flash bank number.
|
||||||
|
* @returns A struct flash_bank for flash bank @a num, or NULL
|
||||||
|
*/
|
||||||
|
struct flash_bank *get_flash_bank_by_num(int num);
|
||||||
|
/**
|
||||||
|
* Retreives @a bank from a command argument, reporting errors parsing
|
||||||
|
* the bank identifier or retreiving the specified bank. The bank
|
||||||
|
* may be identified by its bank number or by @c name.instance, where
|
||||||
|
* @a instance is driver-specific.
|
||||||
|
* @param name_index The index to the string in args containing the
|
||||||
|
* bank identifier.
|
||||||
|
* @param bank On output, contians a pointer to the bank or NULL.
|
||||||
|
* @returns ERROR_OK on success, or an error indicating the problem.
|
||||||
|
*/
|
||||||
|
COMMAND_HELPER(flash_command_get_bank, unsigned name_index,
|
||||||
|
struct flash_bank **bank);
|
||||||
|
/**
|
||||||
|
* Returns the flash bank like get_flash_bank_by_num(), without probing.
|
||||||
|
* @param num The flash bank number.
|
||||||
|
* @returns A struct flash_bank for flash bank @a num, or NULL.
|
||||||
|
*/
|
||||||
|
struct flash_bank *get_flash_bank_by_num_noprobe(int num);
|
||||||
|
/**
|
||||||
|
* Returns the flash bank located at a specified address.
|
||||||
|
* @param target The target, presumed to contain one or more banks.
|
||||||
|
* @param addr An address that is within the range of the bank.
|
||||||
|
* @returns The struct flash_bank located at @a addr, or NULL.
|
||||||
|
*/
|
||||||
|
struct flash_bank *get_flash_bank_by_addr(struct target *target, uint32_t addr);
|
||||||
|
|
||||||
#endif // FLASH_NOR_CORE_H
|
#endif // FLASH_NOR_CORE_H
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,201 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* Copyright (C) 2005 by Dominic Rath <Dominic.Rath@gmx.de> *
|
||||||
|
* Copyright (C) 2007,2008 Øyvind Harboe <oyvind.harboe@zylin.com> *
|
||||||
|
* Copyright (C) 2008 by Spencer Oliver <spen@spen-soft.co.uk> *
|
||||||
|
* Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
|
||||||
|
* *
|
||||||
|
* This program is free software; you can redistribute it and/or modify *
|
||||||
|
* it under the terms of the GNU General Public License as published by *
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or *
|
||||||
|
* (at your option) any later version. *
|
||||||
|
* *
|
||||||
|
* This program is distributed in the hope that it will be useful, *
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||||
|
* GNU General Public License for more details. *
|
||||||
|
* *
|
||||||
|
* You should have received a copy of the GNU General Public License *
|
||||||
|
* along with this program; if not, write to the *
|
||||||
|
* Free Software Foundation, Inc., *
|
||||||
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
||||||
|
***************************************************************************/
|
||||||
|
#ifndef FLASH_NOR_DRIVER_H
|
||||||
|
#define FLASH_NOR_DRIVER_H
|
||||||
|
|
||||||
|
struct flash_bank;
|
||||||
|
|
||||||
|
#define __FLASH_BANK_COMMAND(name) \
|
||||||
|
COMMAND_HELPER(name, struct flash_bank *bank)
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Provides the implementation-independent structure that defines
|
||||||
|
* all of the callbacks required by OpenOCD flash drivers.
|
||||||
|
*
|
||||||
|
* Driver authors must implement the routines defined here, providing an
|
||||||
|
* instance with the fields filled out. After that, the instance must
|
||||||
|
* be registered in flash.c, so it can be used by the driver lookup system.
|
||||||
|
*
|
||||||
|
* Specifically, the user can issue the command: @par
|
||||||
|
* @code
|
||||||
|
* flash bank DRIVERNAME ...parameters...
|
||||||
|
* @endcode
|
||||||
|
*
|
||||||
|
* OpenOCD will search for the driver with a @c flash_driver_s::name
|
||||||
|
* that matches @c DRIVERNAME.
|
||||||
|
*
|
||||||
|
* The flash subsystem calls some of the other drivers routines a using
|
||||||
|
* corresponding static <code>flash_driver_<i>callback</i>()</code>
|
||||||
|
* routine in flash.c.
|
||||||
|
*/
|
||||||
|
struct flash_driver
|
||||||
|
{
|
||||||
|
/**
|
||||||
|
* Gives a human-readable name of this flash driver,
|
||||||
|
* This field is used to select and initialize the driver.
|
||||||
|
*/
|
||||||
|
char *name;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* An array of driver-specific commands to register. When called
|
||||||
|
* during the "flash bank" command, the driver can register addition
|
||||||
|
* commands to support new flash chip functions.
|
||||||
|
*/
|
||||||
|
const struct command_registration *commands;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Finish the "flash bank" command for @a bank. The
|
||||||
|
* @a bank parameter will have been filled in by the core flash
|
||||||
|
* layer when this routine is called, and the driver can store
|
||||||
|
* additional information in its struct flash_bank::driver_priv field.
|
||||||
|
*
|
||||||
|
* The CMD_ARGV are: @par
|
||||||
|
* @code
|
||||||
|
* CMD_ARGV[0] = bank
|
||||||
|
* CMD_ARGV[1] = drivername {name above}
|
||||||
|
* CMD_ARGV[2] = baseaddress
|
||||||
|
* CMD_ARGV[3] = lengthbytes
|
||||||
|
* CMD_ARGV[4] = chip_width_in bytes
|
||||||
|
* CMD_ARGV[5] = bus_width_bytes
|
||||||
|
* CMD_ARGV[6] = driver-specific parameters
|
||||||
|
* @endcode
|
||||||
|
*
|
||||||
|
* For example, CMD_ARGV[4] = 16 bit flash, CMD_ARGV[5] = 32bit bus.
|
||||||
|
*
|
||||||
|
* If extra arguments are provided (@a CMD_ARGC > 6), they will
|
||||||
|
* start in @a CMD_ARGV[6]. These can be used to implement
|
||||||
|
* driver-specific extensions.
|
||||||
|
*
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
__FLASH_BANK_COMMAND((*flash_bank_command));
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Bank/sector erase routine (target-specific). When
|
||||||
|
* called, the flash driver should erase the specified sectors
|
||||||
|
* using whatever means are at its disposal.
|
||||||
|
*
|
||||||
|
* @param bank The bank of flash to be erased.
|
||||||
|
* @param first The number of the first sector to erase, typically 0.
|
||||||
|
* @param last The number of the last sector to erase, typically N-1.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*erase)(struct flash_bank *bank, int first, int last);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Bank/sector protection routine (target-specific).
|
||||||
|
* When called, the driver should disable 'flash write' bits (or
|
||||||
|
* enable 'erase protection' bits) for the given @a bank and @a
|
||||||
|
* sectors.
|
||||||
|
*
|
||||||
|
* @param bank The bank to protect or unprotect.
|
||||||
|
* @param set If non-zero, enable protection; if 0, disable it.
|
||||||
|
* @param first The first sector to (un)protect, typicaly 0.
|
||||||
|
* @param last The last sector to (un)project, typically N-1.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*protect)(struct flash_bank *bank, int set, int first, int last);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Program data into the flash. Note CPU address will be
|
||||||
|
* "bank->base + offset", while the physical address is
|
||||||
|
* dependent upon current target MMU mappings.
|
||||||
|
*
|
||||||
|
* @param bank The bank to program
|
||||||
|
* @param buffer The data bytes to write.
|
||||||
|
* @param offset The offset into the chip to program.
|
||||||
|
* @param count The number of bytes to write.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*write)(struct flash_bank *bank,
|
||||||
|
uint8_t *buffer, uint32_t offset, uint32_t count);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Probe to determine what kind of flash is present.
|
||||||
|
* This is invoked by the "probe" script command.
|
||||||
|
*
|
||||||
|
* @param bank The bank to probe
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*probe)(struct flash_bank *bank);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check the erasure status of a flash bank.
|
||||||
|
* When called, the driver routine must perform the required
|
||||||
|
* checks and then set the @c flash_sector_s::is_erased field
|
||||||
|
* for each of the flash banks's sectors.
|
||||||
|
*
|
||||||
|
* @param bank The bank to check
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*erase_check)(struct flash_bank *bank);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Determine if the specific bank is "protected" or not.
|
||||||
|
* When called, the driver routine must must perform the
|
||||||
|
* required protection check(s) and then set the @c
|
||||||
|
* flash_sector_s::is_protected field for each of the flash
|
||||||
|
* bank's sectors.
|
||||||
|
*
|
||||||
|
* @param bank - the bank to check
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*protect_check)(struct flash_bank *bank);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Display human-readable information about the flash
|
||||||
|
* bank into the given buffer. Drivers must be careful to avoid
|
||||||
|
* overflowing the buffer.
|
||||||
|
*
|
||||||
|
* @param bank - the bank to get info about
|
||||||
|
* @param char - where to put the text for the human to read
|
||||||
|
* @param buf_size - the size of the human buffer.
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*info)(struct flash_bank *bank, char *buf, int buf_size);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* A more gentle flavor of filash_driver_s::probe, performing
|
||||||
|
* setup with less noise. Generally, driver routines should test
|
||||||
|
* to seee if the bank has already been probed; if it has, the
|
||||||
|
* driver probably should not perform its probe a second time.
|
||||||
|
*
|
||||||
|
* This callback is often called from the inside of other
|
||||||
|
* routines (e.g. GDB flash downloads) to autoprobe the flash as
|
||||||
|
* it is programing the flash.
|
||||||
|
*
|
||||||
|
* @param bank - the bank to probe
|
||||||
|
* @returns ERROR_OK if successful; otherwise, an error code.
|
||||||
|
*/
|
||||||
|
int (*auto_probe)(struct flash_bank *bank);
|
||||||
|
};
|
||||||
|
|
||||||
|
#define FLASH_BANK_COMMAND_HANDLER(name) static __FLASH_BANK_COMMAND(name)
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Find a NOR flash driver by its name.
|
||||||
|
* @param name The name of the requested driver.
|
||||||
|
* @returns The flash_driver called @c name, or NULL if not found.
|
||||||
|
*/
|
||||||
|
struct flash_driver *flash_driver_find_by_name(const char *name);
|
||||||
|
|
||||||
|
#endif // FLASH_NOR_DRIVER_H
|
||||||
|
|
@ -19,7 +19,7 @@
|
||||||
#ifdef HAVE_CONFIG_H
|
#ifdef HAVE_CONFIG_H
|
||||||
#include "config.h"
|
#include "config.h"
|
||||||
#endif
|
#endif
|
||||||
#include <flash/nor/core.h>
|
#include "imp.h"
|
||||||
|
|
||||||
extern struct flash_driver lpc2000_flash;
|
extern struct flash_driver lpc2000_flash;
|
||||||
extern struct flash_driver lpc288x_flash;
|
extern struct flash_driver lpc288x_flash;
|
||||||
|
|
|
||||||
|
|
@ -21,6 +21,7 @@
|
||||||
|
|
||||||
// this is an internal header
|
// this is an internal header
|
||||||
#include "core.h"
|
#include "core.h"
|
||||||
|
#include "driver.h"
|
||||||
// common flash internals
|
// common flash internals
|
||||||
#include <flash/common.h>
|
#include <flash/common.h>
|
||||||
// almost all drivers will need this file
|
// almost all drivers will need this file
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue