em357.c File Reference

Include dependency graph for em357.c:

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Data Structures
struct	em357_flash_bank
struct	em357_options

Macros
#define	EM357_FLASH_ACR   0x40008000
#define	EM357_FLASH_AR   0x40008014
#define	EM357_FLASH_CR   0x40008010
#define	EM357_FLASH_KEYR   0x40008004
#define	EM357_FLASH_OBR   0x4000801C
#define	EM357_FLASH_OPTKEYR   0x40008008
#define	EM357_FLASH_SR   0x4000800C
#define	EM357_FLASH_WRPR   0x40008020
#define	EM357_FPEC_CLK   0x4000402c
#define	EM357_OB_RDP   0x08040800
#define	EM357_OB_WRP0   0x08040808
#define	EM357_OB_WRP1   0x0804080A
#define	EM357_OB_WRP2   0x0804080C
#define	FLASH_BSY   (1 << 0)
#define	FLASH_EOP   (1 << 5)
#define	FLASH_LOCK   (1 << 7)
#define	FLASH_MER   (1 << 2)
#define	FLASH_OPTER   (1 << 5)
#define	FLASH_OPTPG   (1 << 4)
#define	FLASH_OPTWRE   (1 << 9)
#define	FLASH_PER   (1 << 1)
#define	FLASH_PG   (1 << 0)
#define	FLASH_PGERR   (1 << 2)
#define	FLASH_STRT   (1 << 6)
#define	FLASH_WRPRTERR   (1 << 4)
#define	KEY1   0x45670123
#define	KEY2   0xCDEF89AB
#define	OPT_ERROR   0
#define	OPT_READOUT   1

Functions
	COMMAND_HANDLER (em357_handle_lock_command)
	COMMAND_HANDLER (em357_handle_mass_erase_command)
	COMMAND_HANDLER (em357_handle_unlock_command)
static int	em357_auto_probe (struct flash_bank *bank)
static int	em357_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
static int	em357_erase_options (struct flash_bank *bank)
static int	em357_get_flash_status (struct flash_bank *bank, uint32_t *status)
static int	em357_mass_erase (struct flash_bank *bank)
static int	em357_probe (struct flash_bank *bank)
static int	em357_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
static int	em357_protect_check (struct flash_bank *bank)
static int	em357_read_options (struct flash_bank *bank)
static int	em357_wait_status_busy (struct flash_bank *bank, int timeout)
static int	em357_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	em357_write_block (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	em357_write_options (struct flash_bank *bank)
	FLASH_BANK_COMMAND_HANDLER (em357_flash_bank_command)

Variables
static const struct command_registration	em357_command_handlers []
static const struct command_registration	em357_exec_command_handlers []
const struct flash_driver	em357_flash

Macro Definition Documentation

EM357_FLASH_ACR

#define EM357_FLASH_ACR   0x40008000

Definition at line 25 of file em357.c.

EM357_FLASH_AR

#define EM357_FLASH_AR   0x40008014

Definition at line 30 of file em357.c.

EM357_FLASH_CR

#define EM357_FLASH_CR   0x40008010

Definition at line 29 of file em357.c.

EM357_FLASH_KEYR

#define EM357_FLASH_KEYR   0x40008004

Definition at line 26 of file em357.c.

EM357_FLASH_OBR

#define EM357_FLASH_OBR   0x4000801C

Definition at line 31 of file em357.c.

EM357_FLASH_OPTKEYR

#define EM357_FLASH_OPTKEYR   0x40008008

Definition at line 27 of file em357.c.

EM357_FLASH_SR

#define EM357_FLASH_SR   0x4000800C

Definition at line 28 of file em357.c.

EM357_FLASH_WRPR

#define EM357_FLASH_WRPR   0x40008020

Definition at line 32 of file em357.c.

EM357_FPEC_CLK

#define EM357_FPEC_CLK   0x4000402c

Definition at line 34 of file em357.c.

EM357_OB_RDP

#define EM357_OB_RDP   0x08040800

Definition at line 37 of file em357.c.

EM357_OB_WRP0

#define EM357_OB_WRP0   0x08040808

Definition at line 38 of file em357.c.

EM357_OB_WRP1

#define EM357_OB_WRP1   0x0804080A

Definition at line 39 of file em357.c.

EM357_OB_WRP2

#define EM357_OB_WRP2   0x0804080C

Definition at line 40 of file em357.c.

FLASH_BSY

#define FLASH_BSY   (1 << 0)

Definition at line 55 of file em357.c.

FLASH_EOP

#define FLASH_EOP   (1 << 5)

Definition at line 58 of file em357.c.

FLASH_LOCK

#define FLASH_LOCK   (1 << 7)

Definition at line 50 of file em357.c.

FLASH_MER

#define FLASH_MER   (1 << 2)

Definition at line 46 of file em357.c.

FLASH_OPTER

#define FLASH_OPTER   (1 << 5)

Definition at line 48 of file em357.c.

FLASH_OPTPG

#define FLASH_OPTPG   (1 << 4)

Definition at line 47 of file em357.c.

FLASH_OPTWRE

#define FLASH_OPTWRE   (1 << 9)

Definition at line 51 of file em357.c.

FLASH_PER

#define FLASH_PER   (1 << 1)

Definition at line 45 of file em357.c.

FLASH_PG

#define FLASH_PG   (1 << 0)

Definition at line 44 of file em357.c.

FLASH_PGERR

#define FLASH_PGERR   (1 << 2)

Definition at line 56 of file em357.c.

FLASH_STRT

#define FLASH_STRT   (1 << 6)

Definition at line 49 of file em357.c.

FLASH_WRPRTERR

#define FLASH_WRPRTERR   (1 << 4)

Definition at line 57 of file em357.c.

KEY1

#define KEY1   0x45670123

Definition at line 67 of file em357.c.

KEY2

#define KEY2   0xCDEF89AB

Definition at line 68 of file em357.c.

OPT_ERROR

#define OPT_ERROR   0

Definition at line 62 of file em357.c.

OPT_READOUT

#define OPT_READOUT   1

Definition at line 63 of file em357.c.

Function Documentation

COMMAND_HANDLER() [1/3]

COMMAND_HANDLER

(

em357_handle_lock_command

)

Definition at line 741 of file em357.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, command_print(), em357_erase_options(), em357_write_options(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, NULL, em357_flash_bank::option_bytes, em357_options::RDP, target::state, and TARGET_HALTED.

COMMAND_HANDLER() [2/3]

COMMAND_HANDLER

(

em357_handle_mass_erase_command

)

Definition at line 856 of file em357.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, command_print(), em357_mass_erase(), ERROR_COMMAND_SYNTAX_ERROR, and ERROR_OK.

COMMAND_HANDLER() [3/3]

COMMAND_HANDLER

(

em357_handle_unlock_command

)

Definition at line 781 of file em357.c.

References bank, CALL_COMMAND_HANDLER, CMD, CMD_ARGC, command_print(), em357_erase_options(), em357_write_options(), ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, NULL, target::state, and TARGET_HALTED.

em357_auto_probe()

static int em357_auto_probe ( struct flash_bank *  bank )

static

Definition at line 733 of file em357.c.

References bank, em357_probe(), ERROR_OK, and em357_flash_bank::probed.

em357_erase()

static int em357_erase ( struct flash_bank *  bank, unsigned int  first, unsigned int  last  )

static

Definition at line 335 of file em357.c.

References bank, EM357_FLASH_AR, EM357_FLASH_CR, EM357_FLASH_KEYR, EM357_FPEC_CLK, em357_mass_erase(), em357_wait_status_busy(), ERROR_OK, ERROR_TARGET_NOT_HALTED, FLASH_LOCK, FLASH_PER, FLASH_STRT, KEY1, KEY2, LOG_ERROR, TARGET_HALTED, and target_write_u32().

em357_erase_options()

static int em357_erase_options ( struct flash_bank *  bank )

static

Definition at line 179 of file em357.c.

References bank, EM357_FLASH_CR, EM357_FLASH_KEYR, EM357_FLASH_OPTKEYR, em357_read_options(), em357_wait_status_busy(), ERROR_OK, FLASH_OPTER, FLASH_OPTWRE, FLASH_STRT, KEY1, KEY2, NULL, em357_flash_bank::option_bytes, em357_options::RDP, and target_write_u32().

Referenced by COMMAND_HANDLER(), and em357_protect().

em357_get_flash_status()

static int em357_get_flash_status ( struct flash_bank *  bank, uint32_t *  status  )

inlinestatic

Definition at line 101 of file em357.c.

References bank, EM357_FLASH_SR, status, and target_read_u32().

Referenced by em357_wait_status_busy().

em357_mass_erase()

static int em357_mass_erase ( struct flash_bank *  bank )

static

Definition at line 817 of file em357.c.

References bank, EM357_FLASH_CR, EM357_FLASH_KEYR, EM357_FPEC_CLK, em357_wait_status_busy(), ERROR_OK, ERROR_TARGET_NOT_HALTED, FLASH_LOCK, FLASH_MER, FLASH_STRT, KEY1, KEY2, LOG_ERROR, target::state, TARGET_HALTED, and target_write_u32().

Referenced by COMMAND_HANDLER(), and em357_erase().

em357_probe()

static int em357_probe ( struct flash_bank *  bank )

static

Definition at line 661 of file em357.c.

References bank, EM357_FPEC_CLK, ERROR_OK, LOG_INFO, LOG_WARNING, em357_flash_bank::ppage_size, em357_flash_bank::probed, and target_write_u32().

Referenced by em357_auto_probe().

em357_protect()

static int em357_protect ( struct flash_bank *  bank, int  set, unsigned int  first, unsigned int  last  )

static

Definition at line 383 of file em357.c.

References bank, bit(), em357_erase_options(), EM357_FLASH_WRPR, em357_write_options(), ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, LOG_WARNING, NULL, em357_flash_bank::option_bytes, em357_flash_bank::ppage_size, em357_options::protection, protection, target::state, status, TARGET_HALTED, and target_read_u32().

em357_protect_check()

static int em357_protect_check ( struct flash_bank *  bank )

static

Definition at line 300 of file em357.c.

References bank, EM357_FLASH_WRPR, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, em357_flash_bank::ppage_size, protection, target::state, TARGET_HALTED, and target_read_u32().

em357_read_options()

static int em357_read_options ( struct flash_bank *  bank )

static

Definition at line 148 of file em357.c.

References bank, EM357_FLASH_OBR, EM357_FLASH_WRPR, ERROR_OK, LOG_INFO, NULL, OPT_READOUT, em357_flash_bank::option_bytes, em357_options::protection, em357_options::RDP, target_read_u32(), and em357_options::user_options.

Referenced by em357_erase_options().

em357_wait_status_busy()

static int em357_wait_status_busy ( struct flash_bank *  bank, int  timeout  )

static

Definition at line 107 of file em357.c.

References alive_sleep(), bank, EM357_FLASH_SR, em357_get_flash_status(), ERROR_FAIL, ERROR_OK, FLASH_BSY, FLASH_PGERR, FLASH_WRPRTERR, LOG_DEBUG, LOG_ERROR, status, and target_write_u32().

Referenced by em357_erase(), em357_erase_options(), em357_mass_erase(), em357_write(), and em357_write_options().

em357_write()

static int em357_write ( struct flash_bank *  bank, const uint8_t *  buffer, uint32_t  offset, uint32_t  count  )

static

Definition at line 571 of file em357.c.

References bank, buffer, count, EM357_FLASH_CR, EM357_FLASH_KEYR, EM357_FPEC_CLK, em357_wait_status_busy(), em357_write_block(), ERROR_FLASH_DST_BREAKS_ALIGNMENT, ERROR_OK, ERROR_TARGET_NOT_HALTED, ERROR_TARGET_RESOURCE_NOT_AVAILABLE, FLASH_LOCK, FLASH_PG, KEY1, KEY2, LOG_ERROR, LOG_WARNING, offset, TARGET_HALTED, target_write_u16(), and target_write_u32().

em357_write_block()

static int em357_write_block ( struct flash_bank *  bank, const uint8_t *  buffer, uint32_t  offset, uint32_t  count  )

static

Definition at line 444 of file em357.c.

References working_area::address, ARM_MODE_THREAD, ARMV7M_COMMON_MAGIC, bank, buf_get_u32(), buf_set_u32(), buffer, armv7m_algorithm::common_magic, armv7m_algorithm::core_mode, count, destroy_reg_param(), EM357_FLASH_SR, ERROR_FAIL, ERROR_OK, ERROR_TARGET_RESOURCE_NOT_AVAILABLE, FLASH_PGERR, FLASH_WRPRTERR, init_reg_param(), LOG_ERROR, LOG_WARNING, NULL, offset, PARAM_IN_OUT, PARAM_OUT, source, target_alloc_working_area(), target_alloc_working_area_try(), target_free_working_area(), target_run_algorithm(), target_write_buffer(), and target_write_u32().

Referenced by em357_write().

em357_write_options()

static int em357_write_options ( struct flash_bank *  bank )

static

Definition at line 225 of file em357.c.

References bank, EM357_FLASH_CR, EM357_FLASH_KEYR, EM357_FLASH_OPTKEYR, EM357_OB_RDP, EM357_OB_WRP0, EM357_OB_WRP1, EM357_OB_WRP2, em357_wait_status_busy(), ERROR_OK, FLASH_LOCK, FLASH_OPTPG, FLASH_OPTWRE, KEY1, KEY2, NULL, em357_flash_bank::option_bytes, em357_options::protection, em357_options::RDP, target_write_u16(), and target_write_u32().

Referenced by COMMAND_HANDLER(), and em357_protect().

FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER

(

em357_flash_bank_command

)

Definition at line 86 of file em357.c.

References bank, CMD_ARGC, ERROR_COMMAND_SYNTAX_ERROR, ERROR_OK, and em357_flash_bank::probed.

Variable Documentation

em357_command_handlers

const struct command_registration em357_command_handlers[]

static

Initial value:

= {
    {
        .name = "em357",
        .mode = COMMAND_ANY,
        .help = "em357 flash command group",
        .usage = "",
        .chain = em357_exec_command_handlers,
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 856 of file em357.c.

em357_exec_command_handlers

const struct command_registration em357_exec_command_handlers[]

static

Initial value:

= {
    {
        .name = "lock",
        .usage = "<bank>",
        .handler = em357_handle_lock_command,
        .mode = COMMAND_EXEC,
        .help = "Lock entire flash device.",
    },
    {
        .name = "unlock",
        .usage = "<bank>",
        .handler = em357_handle_unlock_command,
        .mode = COMMAND_EXEC,
        .help = "Unlock entire protected flash device.",
    },
    {
        .name = "mass_erase",
        .usage = "<bank>",
        .handler = em357_handle_mass_erase_command,
        .mode = COMMAND_EXEC,
        .help = "Erase entire flash device.",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 856 of file em357.c.

em357_flash

const struct flash_driver em357_flash

Initial value:

= {
    .name = "em357",
    .commands = em357_command_handlers,
    .flash_bank_command = em357_flash_bank_command,
    .erase = em357_erase,
    .protect = em357_protect,
    .write = em357_write,
    .read = default_flash_read,
    .probe = em357_probe,
    .auto_probe = em357_auto_probe,
    .erase_check = default_flash_blank_check,
    .protect_check = em357_protect_check,
    .free_driver_priv = default_flash_free_driver_priv,
}

Definition at line 856 of file em357.c.