lpcspifi.c File Reference

Include dependency graph for lpcspifi.c:

Go to the source code of this file.

Data Structures
struct	lpcspifi_flash_bank

Macros
#define	SPIFI_INIT_STACK_SIZE   512
#define	SSP_BSY   (0x00000010)
#define	SSP_CMD_TIMEOUT   (100)
#define	SSP_CPSR   (0x10) /* Clock prescale register */
#define	SSP_CR0   (0x00) /* Control register 0 */
#define	SSP_CR1   (0x04) /* Control register 1 */
#define	SSP_DATA   (0x08) /* Data register (TX and RX) */
#define	SSP_MAX_TIMEOUT   (3000)
#define	SSP_PROBE_TIMEOUT   (100)
#define	SSP_SR   (0x0C) /* Status register */

Functions
	FLASH_BANK_COMMAND_HANDLER (lpcspifi_flash_bank_command)
static int	get_lpcspifi_info (struct flash_bank *bank, struct command_invocation *cmd)
static int	io_write_reg (struct target *target, uint32_t io_base, uint32_t offset, uint32_t value)
static int	ioconfig_write_reg (struct target *target, uint32_t ioconfig_base, uint32_t offset, uint32_t value)
static int	lpcspifi_auto_probe (struct flash_bank *bank)
static int	lpcspifi_bulk_erase (struct flash_bank *bank)
static int	lpcspifi_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
static int	lpcspifi_probe (struct flash_bank *bank)
static int	lpcspifi_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
static int	lpcspifi_protect_check (struct flash_bank *bank)
static int	lpcspifi_read_flash_id (struct flash_bank *bank, uint32_t *id)
static int	lpcspifi_set_hw_mode (struct flash_bank *bank)
static int	lpcspifi_set_sw_mode (struct flash_bank *bank)
static int	lpcspifi_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	lpcspifi_write_enable (struct flash_bank *bank)
static int	poll_ssp_busy (struct target *target, uint32_t ssp_base, int timeout)
static int	read_status_reg (struct flash_bank *bank, uint32_t *status)
static int	ssp_read_reg (struct target *target, uint32_t ssp_base, uint32_t offset, uint32_t *value)
static int	ssp_setcs (struct target *target, uint32_t io_base, unsigned int value)
static int	ssp_write_reg (struct target *target, uint32_t ssp_base, uint32_t offset, uint32_t value)
static int	wait_till_ready (struct flash_bank *bank, int timeout)

Variables
const struct flash_driver	lpcspifi_flash

Macro Definition Documentation

SPIFI_INIT_STACK_SIZE

#define SPIFI_INIT_STACK_SIZE   512

Definition at line 36 of file lpcspifi.c.

SSP_BSY

#define SSP_BSY   (0x00000010)

Definition at line 27 of file lpcspifi.c.

SSP_CMD_TIMEOUT

#define SSP_CMD_TIMEOUT   (100)

Definition at line 30 of file lpcspifi.c.

SSP_CPSR

#define SSP_CPSR   (0x10) /* Clock prescale register */

Definition at line 24 of file lpcspifi.c.

SSP_CR0

#define SSP_CR0   (0x00) /* Control register 0 */

Definition at line 20 of file lpcspifi.c.

SSP_CR1

#define SSP_CR1   (0x04) /* Control register 1 */

Definition at line 21 of file lpcspifi.c.

SSP_DATA

#define SSP_DATA   (0x08) /* Data register (TX and RX) */

Definition at line 22 of file lpcspifi.c.

SSP_MAX_TIMEOUT

#define SSP_MAX_TIMEOUT   (3000)

Definition at line 32 of file lpcspifi.c.

SSP_PROBE_TIMEOUT

#define SSP_PROBE_TIMEOUT   (100)

Definition at line 31 of file lpcspifi.c.

SSP_SR

#define SSP_SR   (0x0C) /* Status register */

Definition at line 23 of file lpcspifi.c.

Function Documentation

FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER

(

lpcspifi_flash_bank_command

)

Definition at line 50 of file lpcspifi.c.

References bank, CMD_ARGC, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, LOG_ERROR, and lpcspifi_flash_bank::probed.

get_lpcspifi_info()

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

static

Definition at line 918 of file lpcspifi.c.

References bank, cmd, command_print_sameline(), lpcspifi_flash_bank::dev, flash_device::device_id, ERROR_OK, flash_device::name, and lpcspifi_flash_bank::probed.

io_write_reg()

static int io_write_reg ( struct target *  target, uint32_t  io_base, uint32_t  offset, uint32_t  value  )

inlinestatic

Definition at line 79 of file lpcspifi.c.

References lpcspifi_flash_bank::io_base, offset, and target_write_u32().

Referenced by lpcspifi_set_sw_mode(), and ssp_setcs().

ioconfig_write_reg()

static int ioconfig_write_reg ( struct target *  target, uint32_t  ioconfig_base, uint32_t  offset, uint32_t  value  )

inlinestatic

Definition at line 69 of file lpcspifi.c.

References lpcspifi_flash_bank::ioconfig_base, offset, and target_write_u32().

Referenced by lpcspifi_set_sw_mode().

lpcspifi_auto_probe()

static int lpcspifi_auto_probe ( struct flash_bank *  bank )

static

Definition at line 904 of file lpcspifi.c.

References bank, ERROR_OK, lpcspifi_probe(), and lpcspifi_flash_bank::probed.

lpcspifi_bulk_erase()

static int lpcspifi_bulk_erase ( struct flash_bank *  bank )

static

Definition at line 370 of file lpcspifi.c.

References bank, flash_device::chip_erase_cmd, lpcspifi_flash_bank::dev, ERROR_FLASH_OPER_UNSUPPORTED, ERROR_OK, lpcspifi_flash_bank::io_base, lpcspifi_set_sw_mode(), lpcspifi_write_enable(), poll_ssp_busy(), lpcspifi_flash_bank::ssp_base, SSP_CMD_TIMEOUT, SSP_DATA, SSP_MAX_TIMEOUT, ssp_read_reg(), ssp_setcs(), ssp_write_reg(), and wait_till_ready().

Referenced by lpcspifi_erase().

lpcspifi_erase()

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

static

Definition at line 406 of file lpcspifi.c.

References working_area::address, ARM_MODE_THREAD, ARMV7M_COMMON_MAGIC, bank, buf_set_u32(), flash_device::chip_erase_cmd, armv7m_algorithm::common_magic, armv7m_algorithm::core_mode, destroy_reg_param(), lpcspifi_flash_bank::dev, flash_device::erase_cmd, ERROR_FAIL, ERROR_FLASH_BANK_NOT_PROBED, ERROR_FLASH_OPER_UNSUPPORTED, ERROR_FLASH_SECTOR_INVALID, ERROR_OK, ERROR_TARGET_NOT_HALTED, init_reg_param(), LOG_DEBUG, LOG_ERROR, LOG_WARNING, lpcspifi_bulk_erase(), lpcspifi_set_hw_mode(), NULL, PARAM_IN_OUT, PARAM_OUT, lpcspifi_flash_bank::probed, target::state, target_alloc_working_area(), target_free_working_area(), TARGET_HALTED, target_run_algorithm(), and target_write_buffer().

lpcspifi_probe()

static int lpcspifi_probe ( struct flash_bank *  bank )

static

Definition at line 830 of file lpcspifi.c.

References bank, lpcspifi_flash_bank::bank_num, lpcspifi_flash_bank::dev, flash_device::device_id, ERROR_FAIL, ERROR_OK, flash_devices, lpcspifi_flash_bank::io_base, lpcspifi_flash_bank::ioconfig_base, flash_sector::is_erased, flash_sector::is_protected, LOG_ERROR, LOG_INFO, LOG_WARNING, lpcspifi_read_flash_id(), lpcspifi_set_hw_mode(), flash_device::name, NULL, flash_sector::offset, lpcspifi_flash_bank::probed, flash_device::sectorsize, flash_sector::size, flash_device::size_in_bytes, and lpcspifi_flash_bank::ssp_base.

Referenced by lpcspifi_auto_probe().

lpcspifi_protect()

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

static

Definition at line 562 of file lpcspifi.c.

References bank, and ERROR_OK.

lpcspifi_protect_check()

static int lpcspifi_protect_check ( struct flash_bank *  bank )

static

Definition at line 912 of file lpcspifi.c.

References ERROR_OK.

lpcspifi_read_flash_id()

static int lpcspifi_read_flash_id ( struct flash_bank *  bank, uint32_t *  id  )

static

Definition at line 758 of file lpcspifi.c.

References bank, ERROR_OK, ERROR_TARGET_NOT_HALTED, lpcspifi_flash_bank::io_base, LOG_DEBUG, LOG_ERROR, lpcspifi_set_sw_mode(), poll_ssp_busy(), SPIFLASH_READ_ID, lpcspifi_flash_bank::ssp_base, SSP_CMD_TIMEOUT, SSP_DATA, SSP_PROBE_TIMEOUT, ssp_read_reg(), ssp_setcs(), ssp_write_reg(), target::state, TARGET_HALTED, and wait_till_ready().

Referenced by lpcspifi_probe().

lpcspifi_set_hw_mode()

static int lpcspifi_set_hw_mode ( struct flash_bank *  bank )

static

Definition at line 123 of file lpcspifi.c.

References working_area::address, ARM_MODE_THREAD, ARMV7M_COMMON_MAGIC, bank, buf_set_u32(), armv7m_algorithm::common_magic, armv7m_algorithm::core_mode, destroy_reg_param(), ERROR_OK, init_reg_param(), LOG_DEBUG, LOG_ERROR, NULL, PARAM_OUT, SPIFI_INIT_STACK_SIZE, lpcspifi_flash_bank::ssp_base, SSP_CR1, ssp_write_reg(), TARGET_ADDR_FMT, target_alloc_working_area(), target_free_working_area(), target_run_algorithm(), target_write_buffer(), and reg_param::value.

Referenced by lpcspifi_erase(), lpcspifi_probe(), lpcspifi_set_sw_mode(), and lpcspifi_write().

lpcspifi_set_sw_mode()

static int lpcspifi_set_sw_mode ( struct flash_bank *  bank )

static

Definition at line 225 of file lpcspifi.c.

References bank, ERROR_OK, lpcspifi_flash_bank::io_base, io_write_reg(), lpcspifi_flash_bank::ioconfig_base, ioconfig_write_reg(), lpcspifi_set_hw_mode(), lpcspifi_flash_bank::ssp_base, SSP_CPSR, SSP_CR0, SSP_CR1, and ssp_write_reg().

Referenced by lpcspifi_bulk_erase(), and lpcspifi_read_flash_id().

lpcspifi_write()

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

static

Definition at line 570 of file lpcspifi.c.

References working_area::address, ARM_MODE_THREAD, ARMV7M_COMMON_MAGIC, bank, buf_set_u32(), buffer, armv7m_algorithm::common_magic, armv7m_algorithm::core_mode, count, destroy_reg_param(), lpcspifi_flash_bank::dev, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, ERROR_TARGET_RESOURCE_NOT_AVAILABLE, init_reg_param(), LOG_DEBUG, LOG_ERROR, LOG_WARNING, lpcspifi_set_hw_mode(), NULL, offset, flash_device::pagesize, PARAM_IN_OUT, PARAM_OUT, working_area::size, flash_device::size_in_bytes, SPIFLASH_DEF_PAGESIZE, target::state, target_alloc_working_area(), target_free_working_area(), target_get_working_area_avail(), TARGET_HALTED, target_run_flash_async_algorithm(), and target_write_buffer().

lpcspifi_write_enable()

static int lpcspifi_write_enable ( struct flash_bank *  bank )

static

Definition at line 336 of file lpcspifi.c.

References bank, ERROR_FAIL, ERROR_OK, lpcspifi_flash_bank::io_base, LOG_ERROR, poll_ssp_busy(), read_status_reg(), SPIFLASH_WE_BIT, SPIFLASH_WRITE_ENABLE, lpcspifi_flash_bank::ssp_base, SSP_CMD_TIMEOUT, SSP_DATA, ssp_read_reg(), ssp_setcs(), ssp_write_reg(), and status.

Referenced by lpcspifi_bulk_erase().

poll_ssp_busy()

static int poll_ssp_busy ( struct target *  target, uint32_t  ssp_base, int  timeout  )

static

Definition at line 96 of file lpcspifi.c.

References alive_sleep(), ERROR_FLASH_OPERATION_FAILED, ERROR_OK, LOG_ERROR, lpcspifi_flash_bank::ssp_base, SSP_BSY, ssp_read_reg(), SSP_SR, and timeval_ms().

Referenced by lpcspifi_bulk_erase(), lpcspifi_read_flash_id(), lpcspifi_write_enable(), and read_status_reg().

read_status_reg()

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

static

Definition at line 279 of file lpcspifi.c.

References bank, ERROR_OK, lpcspifi_flash_bank::io_base, poll_ssp_busy(), SPIFLASH_READ_STATUS, lpcspifi_flash_bank::ssp_base, SSP_CMD_TIMEOUT, SSP_DATA, ssp_read_reg(), ssp_setcs(), ssp_write_reg(), and status.

Referenced by lpcspifi_write_enable(), and wait_till_ready().

ssp_read_reg()

static int ssp_read_reg ( struct target *  target, uint32_t  ssp_base, uint32_t  offset, uint32_t *  value  )

inlinestatic

Definition at line 84 of file lpcspifi.c.

References offset, lpcspifi_flash_bank::ssp_base, and target_read_u32().

Referenced by lpcspifi_bulk_erase(), lpcspifi_read_flash_id(), lpcspifi_write_enable(), poll_ssp_busy(), and read_status_reg().

ssp_setcs()

static int ssp_setcs ( struct target *  target, uint32_t  io_base, unsigned int  value  )

static

Definition at line 89 of file lpcspifi.c.

References lpcspifi_flash_bank::io_base, and io_write_reg().

Referenced by lpcspifi_bulk_erase(), lpcspifi_read_flash_id(), lpcspifi_write_enable(), and read_status_reg().

ssp_write_reg()

static int ssp_write_reg ( struct target *  target, uint32_t  ssp_base, uint32_t  offset, uint32_t  value  )

inlinestatic

Definition at line 74 of file lpcspifi.c.

References offset, lpcspifi_flash_bank::ssp_base, and target_write_u32().

Referenced by lpcspifi_bulk_erase(), lpcspifi_read_flash_id(), lpcspifi_set_hw_mode(), lpcspifi_set_sw_mode(), lpcspifi_write_enable(), and read_status_reg().

wait_till_ready()

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

static

Definition at line 313 of file lpcspifi.c.

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

Referenced by lpcspifi_bulk_erase(), and lpcspifi_read_flash_id().

Variable Documentation

lpcspifi_flash

const struct flash_driver lpcspifi_flash

Initial value:

= {
    .name = "lpcspifi",
    .flash_bank_command = lpcspifi_flash_bank_command,
    .erase = lpcspifi_erase,
    .protect = lpcspifi_protect,
    .write = lpcspifi_write,
    .read = default_flash_read,
    .probe = lpcspifi_probe,
    .auto_probe = lpcspifi_auto_probe,
    .erase_check = default_flash_blank_check,
    .protect_check = lpcspifi_protect_check,
    .info = get_lpcspifi_info,
    .free_driver_priv = default_flash_free_driver_priv,
}

Definition at line 918 of file lpcspifi.c.