stmsmi.c File Reference

Include dependency graph for stmsmi.c:

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Data Structures
struct	stmsmi_flash_bank
struct	stmsmi_target

Macros
#define	SMI_BANK_SIZE   (0x01000000)
#define	SMI_CLEAR_TFF()   SMI_WRITE_REG(SMI_SR, ~SMI_TFF)
#define	SMI_CMD_TIMEOUT   (100)
#define	SMI_CR1   (0x00) /* Control register 1 */
#define	SMI_CR2   (0x04) /* Control register 2 */
#define	SMI_MAX_TIMEOUT   (3000)
#define	SMI_POLL_TFF(timeout)
#define	SMI_PROBE_TIMEOUT   (100)
#define	SMI_READ_ID   0x0000009F /* Read Flash Identification */
#define	SMI_READ_REG(a)
#define	SMI_RR   (0x10) /* RX */
#define	SMI_RSR   0x00000400 /* reads status reg */
#define	SMI_RX_LEN_3   0x00000030 /* data length = 3 byte */
#define	SMI_SEL_BANK0   0x00000000 /* Select Bank0 */
#define	SMI_SEL_BANK1   0x00001000 /* Select Bank1 */
#define	SMI_SEL_BANK2   0x00002000 /* Select Bank2 */
#define	SMI_SEL_BANK3   0x00003000 /* Select Bank3 */
#define	SMI_SEND   0x00000080 /* Send data */
#define	SMI_SET_HW_MODE()
#define	SMI_SET_HWWB_MODE()
#define	SMI_SET_SW_MODE()
#define	SMI_SR   (0x08) /* Status register */
#define	SMI_SW_MODE   0x10000000 /* set to enable SW Mode */
#define	SMI_TFF   0x00000100 /* Transfer Finished Flag */
#define	SMI_TR   (0x0c) /* TX */
#define	SMI_TX_LEN_1   0x00000001 /* data length = 1 byte */
#define	SMI_TX_LEN_4   0x00000004 /* data length = 4 byte */
#define	SMI_WB_MODE   0x20000000 /* Write Burst Mode */
#define	SMI_WE   0x00000800 /* Write Enable */
#define	SMI_WRITE_REG(a, v)

Functions
static uint32_t	erase_command (struct stmsmi_flash_bank *stmsmi_info, uint32_t offset)
	FLASH_BANK_COMMAND_HANDLER (stmsmi_flash_bank_command)
static int	get_stmsmi_info (struct flash_bank *bank, struct command_invocation *cmd)
static int	poll_tff (struct target *target, uint32_t io_base, int timeout)
static int	read_flash_id (struct flash_bank *bank, uint32_t *id)
static int	read_status_reg (struct flash_bank *bank, uint32_t *status)
static int	smi_erase_sector (struct flash_bank *bank, int sector)
static int	smi_write_buffer (struct flash_bank *bank, const uint8_t *buffer, uint32_t address, uint32_t len)
static int	smi_write_enable (struct flash_bank *bank)
static int	stmsmi_auto_probe (struct flash_bank *bank)
static int	stmsmi_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
static int	stmsmi_probe (struct flash_bank *bank)
static int	stmsmi_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
static int	stmsmi_protect_check (struct flash_bank *bank)
static int	stmsmi_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
static int	wait_till_ready (struct flash_bank *bank, int timeout)

Variables
const struct flash_driver	stmsmi_flash
static const struct stmsmi_target	target_devices []

Macro Definition Documentation

SMI_BANK_SIZE

#define SMI_BANK_SIZE   (0x01000000)

Definition at line 70 of file stmsmi.c.

SMI_CLEAR_TFF

#define SMI_CLEAR_TFF

(

)

SMI_WRITE_REG(SMI_SR, ~SMI_TFF)

Definition at line 68 of file stmsmi.c.

SMI_CMD_TIMEOUT

#define SMI_CMD_TIMEOUT   (100)

Definition at line 101 of file stmsmi.c.

SMI_CR1

#define SMI_CR1   (0x00) /* Control register 1 */

Definition at line 72 of file stmsmi.c.

SMI_CR2

#define SMI_CR2   (0x04) /* Control register 2 */

Definition at line 73 of file stmsmi.c.

SMI_MAX_TIMEOUT

#define SMI_MAX_TIMEOUT   (3000)

Definition at line 103 of file stmsmi.c.

SMI_POLL_TFF

#define SMI_POLL_TFF

(

timeout

)

Value:

{                                   \
    int _retval;                    \
                                    \
    _retval = poll_tff(target, io_base, timeout); \
    if (_retval != ERROR_OK)        \
        return _retval;             \
}

Definition at line 53 of file stmsmi.c.

SMI_PROBE_TIMEOUT

#define SMI_PROBE_TIMEOUT   (100)

Definition at line 102 of file stmsmi.c.

SMI_READ_ID

#define SMI_READ_ID   0x0000009F /* Read Flash Identification */

Definition at line 98 of file stmsmi.c.

SMI_READ_REG

#define SMI_READ_REG

(

a

)

Value:

({                                  \
    int _ret;                       \
    uint32_t _value;                \
                                    \
    _ret = target_read_u32(target, io_base + (a), &_value); \
    if (_ret != ERROR_OK)           \
        return _ret;                \
    _value;                         \
})

Definition at line 33 of file stmsmi.c.

SMI_RR

#define SMI_RR   (0x10) /* RX */

Definition at line 76 of file stmsmi.c.

SMI_RSR

#define SMI_RSR   0x00000400 /* reads status reg */

Definition at line 87 of file stmsmi.c.

SMI_RX_LEN_3

#define SMI_RX_LEN_3   0x00000030 /* data length = 3 byte */

Definition at line 85 of file stmsmi.c.

SMI_SEL_BANK0

#define SMI_SEL_BANK0   0x00000000 /* Select Bank0 */

Definition at line 89 of file stmsmi.c.

SMI_SEL_BANK1

#define SMI_SEL_BANK1   0x00001000 /* Select Bank1 */

Definition at line 90 of file stmsmi.c.

SMI_SEL_BANK2

#define SMI_SEL_BANK2   0x00002000 /* Select Bank2 */

Definition at line 91 of file stmsmi.c.

SMI_SEL_BANK3

#define SMI_SEL_BANK3   0x00003000 /* Select Bank3 */

Definition at line 92 of file stmsmi.c.

SMI_SEND

#define SMI_SEND   0x00000080 /* Send data */

Definition at line 86 of file stmsmi.c.

SMI_SET_HW_MODE

#define SMI_SET_HW_MODE

(

)

Value:

    SMI_WRITE_REG(SMI_CR1, \
    SMI_READ_REG(SMI_CR1) & ~(SMI_SW_MODE | SMI_WB_MODE))

Definition at line 66 of file stmsmi.c.

SMI_SET_HWWB_MODE

#define SMI_SET_HWWB_MODE

(

)

Value:

    SMI_WRITE_REG(SMI_CR1, \
    (SMI_READ_REG(SMI_CR1) | SMI_WB_MODE) & ~SMI_SW_MODE)

Definition at line 64 of file stmsmi.c.

SMI_SET_SW_MODE

#define SMI_SET_SW_MODE

(

)

Value:

    SMI_WRITE_REG(SMI_CR1, \
    SMI_READ_REG(SMI_CR1) | SMI_SW_MODE)

Definition at line 62 of file stmsmi.c.

SMI_SR

#define SMI_SR   (0x08) /* Status register */

Definition at line 74 of file stmsmi.c.

SMI_SW_MODE

#define SMI_SW_MODE   0x10000000 /* set to enable SW Mode */

Definition at line 79 of file stmsmi.c.

SMI_TFF

#define SMI_TFF   0x00000100 /* Transfer Finished Flag */

Definition at line 95 of file stmsmi.c.

SMI_TR

#define SMI_TR   (0x0c) /* TX */

Definition at line 75 of file stmsmi.c.

SMI_TX_LEN_1

#define SMI_TX_LEN_1   0x00000001 /* data length = 1 byte */

Definition at line 83 of file stmsmi.c.

SMI_TX_LEN_4

#define SMI_TX_LEN_4   0x00000004 /* data length = 4 byte */

Definition at line 84 of file stmsmi.c.

SMI_WB_MODE

#define SMI_WB_MODE   0x20000000 /* Write Burst Mode */

Definition at line 80 of file stmsmi.c.

SMI_WE

#define SMI_WE   0x00000800 /* Write Enable */

Definition at line 88 of file stmsmi.c.

SMI_WRITE_REG

#define SMI_WRITE_REG	(		a,
			v
	)

Value:

{                                   \
    int _retval;                    \
                                    \
    _retval = target_write_u32(target, io_base + (a), (v)); \
    if (_retval != ERROR_OK)        \
        return _retval;             \
}

Definition at line 44 of file stmsmi.c.

Function Documentation

erase_command()

static uint32_t erase_command ( struct stmsmi_flash_bank *  stmsmi_info, uint32_t  offset  )

static

Definition at line 257 of file stmsmi.c.

References stmsmi_flash_bank::dev, flash_device::erase_cmd, le_to_h_u32(), and offset.

Referenced by smi_erase_sector().

FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER

(

stmsmi_flash_bank_command

)

Definition at line 126 of file stmsmi.c.

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

get_stmsmi_info()

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

static

Definition at line 623 of file stmsmi.c.

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

poll_tff()

static int poll_tff ( struct target *  target, uint32_t  io_base, int  timeout  )

static

Definition at line 149 of file stmsmi.c.

References alive_sleep(), ERROR_FLASH_OPERATION_FAILED, ERROR_OK, LOG_ERROR, SMI_READ_REG, SMI_SR, SMI_TFF, and timeval_ms().

read_flash_id()

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

static

Definition at line 471 of file stmsmi.c.

References bank, stmsmi_flash_bank::bank_num, ERROR_OK, ERROR_TARGET_NOT_HALTED, stmsmi_flash_bank::io_base, LOG_ERROR, SMI_CLEAR_TFF, SMI_CMD_TIMEOUT, SMI_CR2, SMI_POLL_TFF, SMI_PROBE_TIMEOUT, SMI_READ_ID, SMI_READ_REG, SMI_RR, SMI_RX_LEN_3, SMI_SEND, SMI_SET_SW_MODE, SMI_TR, SMI_TX_LEN_1, SMI_WRITE_REG, target::state, TARGET_HALTED, and wait_till_ready().

Referenced by stmsmi_probe().

read_status_reg()

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

static

Definition at line 170 of file stmsmi.c.

References bank, stmsmi_flash_bank::bank_num, ERROR_OK, stmsmi_flash_bank::io_base, SMI_CLEAR_TFF, SMI_CMD_TIMEOUT, SMI_CR2, SMI_POLL_TFF, SMI_READ_REG, SMI_RSR, SMI_SR, SMI_WRITE_REG, and status.

Referenced by smi_write_enable(), and wait_till_ready().

smi_erase_sector()

static int smi_erase_sector ( struct flash_bank *  bank, int  sector  )

static

Definition at line 270 of file stmsmi.c.

References bank, stmsmi_flash_bank::bank_num, cmd, erase_command(), ERROR_OK, stmsmi_flash_bank::io_base, SMI_CLEAR_TFF, SMI_CMD_TIMEOUT, SMI_CR2, SMI_MAX_TIMEOUT, SMI_POLL_TFF, SMI_SEND, SMI_SET_SW_MODE, SMI_TR, SMI_TX_LEN_4, smi_write_enable(), SMI_WRITE_REG, and wait_till_ready().

Referenced by stmsmi_erase().

smi_write_buffer()

static int smi_write_buffer ( struct flash_bank *  bank, const uint8_t *  buffer, uint32_t  address, uint32_t  len  )

static

Definition at line 359 of file stmsmi.c.

References bank, buffer, ERROR_OK, stmsmi_flash_bank::io_base, LOG_DEBUG, SMI_SET_HWWB_MODE, smi_write_enable(), and target_write_buffer().

Referenced by stmsmi_write().

smi_write_enable()

static int smi_write_enable ( struct flash_bank *  bank )

static

Definition at line 223 of file stmsmi.c.

References bank, stmsmi_flash_bank::bank_num, ERROR_FAIL, ERROR_OK, stmsmi_flash_bank::io_base, LOG_ERROR, read_status_reg(), SMI_CLEAR_TFF, SMI_CMD_TIMEOUT, SMI_CR2, SMI_POLL_TFF, SMI_SET_HW_MODE, SMI_WE, SMI_WRITE_REG, SPIFLASH_WE_BIT, and status.

Referenced by smi_erase_sector(), and smi_write_buffer().

stmsmi_auto_probe()

static int stmsmi_auto_probe ( struct flash_bank *  bank )

static

Definition at line 609 of file stmsmi.c.

References bank, ERROR_OK, stmsmi_flash_bank::probed, and stmsmi_probe().

stmsmi_erase()

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

static

Definition at line 304 of file stmsmi.c.

References bank, stmsmi_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, stmsmi_flash_bank::io_base, keep_alive(), LOG_DEBUG, LOG_ERROR, stmsmi_flash_bank::probed, smi_erase_sector(), SMI_SET_HW_MODE, target::state, and TARGET_HALTED.

stmsmi_probe()

static int stmsmi_probe ( struct flash_bank *  bank )

static

Definition at line 510 of file stmsmi.c.

References bank, stmsmi_flash_bank::bank_num, stmsmi_flash_bank::dev, flash_device::device_id, ERROR_FAIL, ERROR_OK, flash_devices, jtag_tap::idcode, stmsmi_flash_bank::io_base, stmsmi_target::io_base, flash_sector::is_erased, flash_sector::is_protected, LOG_DEBUG, LOG_ERROR, LOG_INFO, LOG_WARNING, flash_device::name, stmsmi_target::name, NULL, flash_sector::offset, stmsmi_flash_bank::probed, read_flash_id(), flash_device::sectorsize, flash_sector::size, flash_device::size_in_bytes, SMI_BANK_SIZE, stmsmi_target::smi_base, SMI_SEL_BANK0, SMI_SEL_BANK1, SMI_SEL_BANK2, SMI_SEL_BANK3, SMI_SET_HW_MODE, target::tap, stmsmi_target::tap_idcode, TARGET_ADDR_FMT, and target_devices.

Referenced by stmsmi_auto_probe().

stmsmi_protect()

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

static

Definition at line 351 of file stmsmi.c.

References bank, and ERROR_OK.

stmsmi_protect_check()

static int stmsmi_protect_check ( struct flash_bank *  bank )

static

Definition at line 617 of file stmsmi.c.

References ERROR_OK.

stmsmi_write()

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

static

Definition at line 384 of file stmsmi.c.

References bank, buffer, count, stmsmi_flash_bank::dev, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, stmsmi_flash_bank::io_base, keep_alive(), LOG_DEBUG, LOG_ERROR, LOG_WARNING, offset, flash_device::pagesize, flash_device::size_in_bytes, SMI_SET_HW_MODE, smi_write_buffer(), SPIFLASH_DEF_PAGESIZE, target::state, and TARGET_HALTED.

wait_till_ready()

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

static

Definition at line 198 of file stmsmi.c.

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

Referenced by read_flash_id(), and smi_erase_sector().

Variable Documentation

stmsmi_flash

const struct flash_driver stmsmi_flash

Initial value:

= {
    .name = "stmsmi",
    .flash_bank_command = stmsmi_flash_bank_command,
    .erase = stmsmi_erase,
    .protect = stmsmi_protect,
    .write = stmsmi_write,
    .read = default_flash_read,
    .probe = stmsmi_probe,
    .auto_probe = stmsmi_auto_probe,
    .erase_check = default_flash_blank_check,
    .protect_check = stmsmi_protect_check,
    .info = get_stmsmi_info,
    .free_driver_priv = default_flash_free_driver_priv,
}

Definition at line 623 of file stmsmi.c.

target_devices

const struct stmsmi_target target_devices[]

static

Initial value:

= {
    
    { "SPEAr3xx/6xx", 0x07926041, 0xf8000000, 0xfc000000 },
    { "STR75x",       0x4f1f0041, 0x80000000, 0x90000000 },
    { NULL,           0,          0,          0 }
}

Definition at line 1 of file stmsmi.c.

Referenced by stmsmi_probe().