jtagspi.c File Reference

Include dependency graph for jtagspi.c:

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Data Structures
struct	jtagspi_flash_bank

Macros
#define	JTAGSPI_MAX_TIMEOUT   3000

Functions
	COMMAND_HANDLER (jtagspi_handle_always_4byte)
	COMMAND_HANDLER (jtagspi_handle_cmd)
	COMMAND_HANDLER (jtagspi_handle_set)
static uint8_t *	fill_addr (uint32_t addr, unsigned int addr_len, uint8_t *buffer)
	FLASH_BANK_COMMAND_HANDLER (jtagspi_flash_bank_command)
static void	flip_u8 (const uint8_t *in, uint8_t *out, unsigned int len)
static int	jtagspi_auto_probe (struct flash_bank *bank)
static int	jtagspi_bulk_erase (struct flash_bank *bank)
static int	jtagspi_cmd (struct flash_bank *bank, uint8_t cmd, uint8_t *write_buffer, unsigned int write_len, uint8_t *data_buffer, int data_len)
static int	jtagspi_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
static int	jtagspi_info (struct flash_bank *bank, struct command_invocation *cmd)
static int	jtagspi_page_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	jtagspi_probe (struct flash_bank *bank)
static int	jtagspi_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
static int	jtagspi_read (struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
static int	jtagspi_read_status (struct flash_bank *bank, uint32_t *status)
static int	jtagspi_sector_erase (struct flash_bank *bank, unsigned int sector)
static void	jtagspi_set_ir (struct flash_bank *bank)
static int	jtagspi_wait (struct flash_bank *bank, int timeout_ms)
static int	jtagspi_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	jtagspi_write_enable (struct flash_bank *bank)

Variables
static const struct command_registration	jtagspi_command_handlers []
static const struct command_registration	jtagspi_exec_command_handlers []
const struct flash_driver	jtagspi_flash

Macro Definition Documentation

JTAGSPI_MAX_TIMEOUT

#define JTAGSPI_MAX_TIMEOUT   3000

Definition at line 16 of file jtagspi.c.

Function Documentation

COMMAND_HANDLER() [1/3]

COMMAND_HANDLER

(

jtagspi_handle_always_4byte

)

Definition at line 345 of file jtagspi.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_BOOL, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, jtagspi_info(), and LOG_DEBUG.

COMMAND_HANDLER() [2/3]

COMMAND_HANDLER

(

jtagspi_handle_cmd

)

Definition at line 292 of file jtagspi.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, jtagspi_cmd(), LOG_DEBUG, LOG_ERROR, and output.

COMMAND_HANDLER() [3/3]

COMMAND_HANDLER

(

jtagspi_handle_set

)

Definition at line 146 of file jtagspi.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, command_print(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, info, flash_sector::is_erased, flash_sector::is_protected, LOG_DEBUG, LOG_ERROR, LOG_INFO, LOG_WARNING, NULL, flash_sector::offset, flash_sector::size, and SPIFLASH_DEF_PAGESIZE.

fill_addr()

static uint8_t* fill_addr ( uint32_t  addr, unsigned int  addr_len, uint8_t *  buffer  )

static

Definition at line 530 of file jtagspi.c.

References addr, jtagspi_flash_bank::addr_len, and buffer.

Referenced by jtagspi_page_write(), jtagspi_read(), and jtagspi_sector_erase().

FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER

(

jtagspi_flash_bank_command

)

Definition at line 29 of file jtagspi.c.

References bank, CMD_ARGC, CMD_ARGV, COMMAND_PARSE_NUMBER, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, info, LOG_ERROR, and NULL.

flip_u8()

static void flip_u8 ( const uint8_t *  in, uint8_t *  out, unsigned int  len  )

static

Definition at line 65 of file jtagspi.c.

References flip_u32().

Referenced by jtagspi_cmd().

jtagspi_auto_probe()

static int jtagspi_auto_probe ( struct flash_bank *  bank )

static

Definition at line 448 of file jtagspi.c.

References bank, ERROR_OK, info, and jtagspi_probe().

jtagspi_bulk_erase()

static int jtagspi_bulk_erase ( struct flash_bank *  bank )

static

Definition at line 508 of file jtagspi.c.

References bank, ERROR_FLASH_OPER_UNSUPPORTED, ERROR_OK, info, jtagspi_cmd(), JTAGSPI_MAX_TIMEOUT, jtagspi_wait(), jtagspi_write_enable(), LOG_INFO, NULL, and timeval_ms().

Referenced by jtagspi_erase().

jtagspi_cmd()

static int jtagspi_cmd ( struct flash_bank *  bank, uint8_t  cmd, uint8_t *  write_buffer, unsigned int  write_len, uint8_t *  data_buffer, int  data_len  )

static

Definition at line 71 of file jtagspi.c.

References bank, cmd, flip_u8(), h_u32_to_be(), scan_field::in_value, info, jtag_add_dr_scan(), jtag_execute_queue(), jtag_tap_count_enabled(), jtagspi_set_ir(), LOG_DEBUG, NULL, scan_field::num_bits, scan_field::out_value, and TAP_IDLE.

Referenced by COMMAND_HANDLER(), jtagspi_bulk_erase(), jtagspi_page_write(), jtagspi_probe(), jtagspi_read(), jtagspi_read_status(), jtagspi_sector_erase(), and jtagspi_write_enable().

jtagspi_erase()

static int jtagspi_erase ( struct flash_bank *  bank, unsigned int  first, unsigned int  last  )

static

Definition at line 564 of file jtagspi.c.

References bank, ERROR_FAIL, ERROR_FLASH_BANK_NOT_PROBED, ERROR_FLASH_OPER_UNSUPPORTED, ERROR_FLASH_SECTOR_INVALID, ERROR_OK, info, jtagspi_bulk_erase(), jtagspi_sector_erase(), LOG_DEBUG, LOG_ERROR, and LOG_WARNING.

jtagspi_info()

static int jtagspi_info ( struct flash_bank *  bank, struct command_invocation *  cmd  )

static

Definition at line 716 of file jtagspi.c.

Referenced by COMMAND_HANDLER().

jtagspi_page_write()

static int jtagspi_page_write ( struct flash_bank *  bank, const uint8_t *  buffer, uint32_t  offset, uint32_t  count  )

static

Definition at line 663 of file jtagspi.c.

References addr, jtagspi_flash_bank::addr_len, bank, buffer, count, ERROR_OK, fill_addr(), info, jtagspi_cmd(), JTAGSPI_MAX_TIMEOUT, jtagspi_wait(), jtagspi_write_enable(), and offset.

Referenced by jtagspi_write().

jtagspi_probe()

static int jtagspi_probe ( struct flash_bank *  bank )

static

Definition at line 370 of file jtagspi.c.

References bank, flash_device::device_id, ERROR_FAIL, ERROR_OK, flash_devices, id, info, flash_sector::is_erased, flash_sector::is_protected, jtagspi_cmd(), le_to_h_u24(), LOG_ERROR, LOG_INFO, LOG_WARNING, flash_device::name, NULL, flash_sector::offset, flash_device::sectorsize, flash_sector::size, and SPIFLASH_READ_ID.

Referenced by jtagspi_auto_probe().

jtagspi_protect()

static int jtagspi_protect ( struct flash_bank *  bank, int  set, unsigned int  first, unsigned int  last  )

static

Definition at line 614 of file jtagspi.c.

References bank, and ERROR_OK.

jtagspi_read()

static int jtagspi_read ( struct flash_bank *  bank, uint8_t *  buffer, uint32_t  offset, uint32_t  count  )

static

Definition at line 622 of file jtagspi.c.

References addr, jtagspi_flash_bank::addr_len, bank, buffer, count, ERROR_FLASH_BANK_NOT_PROBED, ERROR_OK, fill_addr(), info, jtagspi_cmd(), LOG_DEBUG, LOG_ERROR, offset, and SPIFLASH_DEF_PAGESIZE.

jtagspi_read_status()

static int jtagspi_read_status ( struct flash_bank *  bank, uint32_t *  status  )

static

Definition at line 457 of file jtagspi.c.

References bank, ERROR_OK, jtagspi_cmd(), LOG_DEBUG, NULL, SPIFLASH_READ_STATUS, and status.

Referenced by jtagspi_wait(), and jtagspi_write_enable().

jtagspi_sector_erase()

static int jtagspi_sector_erase ( struct flash_bank *  bank, unsigned int  sector  )

static

Definition at line 540 of file jtagspi.c.

References addr, jtagspi_flash_bank::addr_len, bank, ERROR_OK, fill_addr(), info, jtagspi_cmd(), JTAGSPI_MAX_TIMEOUT, jtagspi_wait(), jtagspi_write_enable(), LOG_INFO, NULL, and timeval_ms().

Referenced by jtagspi_erase().

jtagspi_set_ir()

static void jtagspi_set_ir ( struct flash_bank *  bank )

static

Definition at line 51 of file jtagspi.c.

References bank, buf_set_u32(), scan_field::in_value, info, jtag_add_ir_scan(), LOG_DEBUG, NULL, scan_field::num_bits, scan_field::out_value, and TAP_IDLE.

Referenced by jtagspi_cmd().

jtagspi_wait()

static int jtagspi_wait ( struct flash_bank *  bank, int  timeout_ms  )

static

Definition at line 468 of file jtagspi.c.

References alive_sleep(), bank, ERROR_FAIL, ERROR_OK, jtagspi_read_status(), LOG_DEBUG, LOG_ERROR, SPIFLASH_BSY_BIT, status, and timeval_ms().

Referenced by jtagspi_bulk_erase(), jtagspi_page_write(), and jtagspi_sector_erase().

jtagspi_write()

static int jtagspi_write ( struct flash_bank *  bank, const uint8_t *  buffer, uint32_t  offset, uint32_t  count  )

static

Definition at line 683 of file jtagspi.c.

References bank, buffer, count, ERROR_FLASH_BANK_NOT_PROBED, ERROR_OK, info, jtagspi_page_write(), LOG_DEBUG, LOG_ERROR, offset, and SPIFLASH_DEF_PAGESIZE.

jtagspi_write_enable()

static int jtagspi_write_enable ( struct flash_bank *  bank )

static

Definition at line 492 of file jtagspi.c.

References bank, ERROR_FAIL, ERROR_OK, jtagspi_cmd(), jtagspi_read_status(), LOG_ERROR, NULL, SPIFLASH_WE_BIT, SPIFLASH_WRITE_ENABLE, and status.

Referenced by jtagspi_bulk_erase(), jtagspi_page_write(), and jtagspi_sector_erase().

Variable Documentation

jtagspi_command_handlers

const struct command_registration jtagspi_command_handlers[]

static

Initial value:

= {
    {
        .name = "jtagspi",
        .mode = COMMAND_ANY,
        .help = "jtagspi command group",
        .usage = "",
        .chain = jtagspi_exec_command_handlers,
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 716 of file jtagspi.c.

jtagspi_exec_command_handlers

const struct command_registration jtagspi_exec_command_handlers[]

static

Initial value:

= {
    {
        .name = "set",
        .handler = jtagspi_handle_set,
        .mode = COMMAND_EXEC,
        .usage = "bank_id name chip_size page_size read_cmd unused pprg_cmd "
            "[ mass_erase_cmd ] [ sector_size sector_erase_cmd ]",
        .help = "Set device parameters if not autodetected.",
    },
    {
        .name = "cmd",
        .handler = jtagspi_handle_cmd,
        .mode = COMMAND_EXEC,
        .usage = "bank_id num_resp cmd_byte ...",
        .help = "Send low-level command cmd_byte and following bytes, read num_bytes.",
    },
    {
        .name = "always_4byte",
        .handler = jtagspi_handle_always_4byte,
        .mode = COMMAND_EXEC,
        .usage = "bank_id [ on | off ]",
        .help = "Use always 4-byte address except for basic 0x03.",
    },
 
    COMMAND_REGISTRATION_DONE
}

Definition at line 716 of file jtagspi.c.

jtagspi_flash

const struct flash_driver jtagspi_flash

Initial value:

= {
    .name = "jtagspi",
    .commands = jtagspi_command_handlers,
    .flash_bank_command = jtagspi_flash_bank_command,
    .erase = jtagspi_erase,
    .protect = jtagspi_protect,
    .write = jtagspi_write,
    .read = jtagspi_read,
    .probe = jtagspi_probe,
    .auto_probe = jtagspi_auto_probe,
    .erase_check = default_flash_blank_check,
    .info = jtagspi_info,
    .free_driver_priv = default_flash_free_driver_priv,
}

Definition at line 716 of file jtagspi.c.