atsamv.c File Reference

Include dependency graph for atsamv.c:

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Data Structures
struct	samv_flash_bank

Macros
#define	OFFSET_EFC_FCR   4
#define	OFFSET_EFC_FMR   0
#define	OFFSET_EFC_FRR   12
#define	OFFSET_EFC_FSR   8
#define	REG_NAME_WIDTH   (12)
#define	SAMV_CHIPID_CIDR   (0x400E0940)
#define	SAMV_CONTROLLER_ADDR   (0x400e0c00)
#define	SAMV_EFC_FCMD_CFB   (0xC) /* (EFC) Clear Fuse Bit */
#define	SAMV_EFC_FCMD_CLB   (0x9) /* (EFC) Clear Lock Bit */
#define	SAMV_EFC_FCMD_EA   (0x5) /* (EFC) Erase All */
#define	SAMV_EFC_FCMD_EPA   (0x7) /* (EFC) Erase pages */
#define	SAMV_EFC_FCMD_EWP   (0x3) /* (EFC) Erase Page and Write Page */
#define	SAMV_EFC_FCMD_EWPL   (0x4) /* (EFC) Erase Page, Write Page then Lock*/
#define	SAMV_EFC_FCMD_GETD   (0x0) /* (EFC) Get Flash Descriptor */
#define	SAMV_EFC_FCMD_GFB   (0xD) /* (EFC) Get Fuse Bit */
#define	SAMV_EFC_FCMD_GLB   (0xA) /* (EFC) Get Lock Bit */
#define	SAMV_EFC_FCMD_SFB   (0xB) /* (EFC) Set Fuse Bit */
#define	SAMV_EFC_FCMD_SLB   (0x8) /* (EFC) Set Lock Bit */
#define	SAMV_EFC_FCMD_WP   (0x1) /* (EFC) Write Page */
#define	SAMV_EFC_FCMD_WPL   (0x2) /* (EFC) Write Page and Lock */
#define	SAMV_FLASH_BASE   0x00400000
#define	SAMV_NUM_GPNVM_BITS   9
#define	SAMV_PAGE_SIZE   512
#define	SAMV_SECTOR_SIZE   16384

Functions
	COMMAND_HANDLER (samv_handle_gpnvm_command)
	FLASH_BANK_COMMAND_HANDLER (samv_flash_bank_command)
static int	samv_auto_probe (struct flash_bank *bank)
static int	samv_clear_gpnvm (struct target *target, unsigned int gpnvm)
static int	samv_efc_get_result (struct target *target, uint32_t *v)
static int	samv_efc_get_status (struct target *target, uint32_t *v)
static int	samv_efc_perform_command (struct target *target, unsigned int command, unsigned int argument, uint32_t *status)
static int	samv_efc_start_command (struct target *target, unsigned int command, unsigned int argument)
static int	samv_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
static int	samv_erase_pages (struct target *target, int first_page, int num_pages, uint32_t *status)
static int	samv_flash_lock (struct target *target, unsigned int start_sector, unsigned int end_sector)
static int	samv_flash_unlock (struct target *target, unsigned int start_sector, unsigned int end_sector)
static int	samv_get_device_id (struct flash_bank *bank, uint32_t *device_id)
static int	samv_get_gpnvm (struct target *target, unsigned int gpnvm, unsigned int *out)
static int	samv_get_info (struct flash_bank *bank, struct command_invocation *cmd)
static int	samv_page_read (struct target *target, unsigned int page_num, uint8_t *buf)
static int	samv_page_write (struct target *target, unsigned int pagenum, const uint8_t *buf)
static int	samv_probe (struct flash_bank *bank)
static int	samv_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
static int	samv_protect_check (struct flash_bank *bank)
static int	samv_set_gpnvm (struct target *target, unsigned int gpnvm)
static int	samv_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)

Variables
static const struct command_registration	atsamv_command_handlers []
static const struct command_registration	atsamv_exec_command_handlers []
const struct flash_driver	atsamv_flash

Macro Definition Documentation

OFFSET_EFC_FCR

#define OFFSET_EFC_FCR   4

Definition at line 45 of file atsamv.c.

OFFSET_EFC_FMR

#define OFFSET_EFC_FMR   0

Definition at line 44 of file atsamv.c.

OFFSET_EFC_FRR

#define OFFSET_EFC_FRR   12

Definition at line 47 of file atsamv.c.

OFFSET_EFC_FSR

#define OFFSET_EFC_FSR   8

Definition at line 46 of file atsamv.c.

REG_NAME_WIDTH

#define REG_NAME_WIDTH   (12)

Definition at line 28 of file atsamv.c.

SAMV_CHIPID_CIDR

#define SAMV_CHIPID_CIDR   (0x400E0940)

Definition at line 49 of file atsamv.c.

SAMV_CONTROLLER_ADDR

#define SAMV_CONTROLLER_ADDR   (0x400e0c00)

Definition at line 51 of file atsamv.c.

SAMV_EFC_FCMD_CFB

#define SAMV_EFC_FCMD_CFB   (0xC) /* (EFC) Clear Fuse Bit */

Definition at line 41 of file atsamv.c.

SAMV_EFC_FCMD_CLB

#define SAMV_EFC_FCMD_CLB   (0x9) /* (EFC) Clear Lock Bit */

Definition at line 38 of file atsamv.c.

SAMV_EFC_FCMD_EA

#define SAMV_EFC_FCMD_EA   (0x5) /* (EFC) Erase All */

Definition at line 35 of file atsamv.c.

SAMV_EFC_FCMD_EPA

#define SAMV_EFC_FCMD_EPA   (0x7) /* (EFC) Erase pages */

Definition at line 36 of file atsamv.c.

SAMV_EFC_FCMD_EWP

#define SAMV_EFC_FCMD_EWP   (0x3) /* (EFC) Erase Page and Write Page */

Definition at line 33 of file atsamv.c.

SAMV_EFC_FCMD_EWPL

#define SAMV_EFC_FCMD_EWPL   (0x4) /* (EFC) Erase Page, Write Page then Lock*/

Definition at line 34 of file atsamv.c.

SAMV_EFC_FCMD_GETD

#define SAMV_EFC_FCMD_GETD   (0x0) /* (EFC) Get Flash Descriptor */

Definition at line 30 of file atsamv.c.

SAMV_EFC_FCMD_GFB

#define SAMV_EFC_FCMD_GFB   (0xD) /* (EFC) Get Fuse Bit */

Definition at line 42 of file atsamv.c.

SAMV_EFC_FCMD_GLB

#define SAMV_EFC_FCMD_GLB   (0xA) /* (EFC) Get Lock Bit */

Definition at line 39 of file atsamv.c.

SAMV_EFC_FCMD_SFB

#define SAMV_EFC_FCMD_SFB   (0xB) /* (EFC) Set Fuse Bit */

Definition at line 40 of file atsamv.c.

SAMV_EFC_FCMD_SLB

#define SAMV_EFC_FCMD_SLB   (0x8) /* (EFC) Set Lock Bit */

Definition at line 37 of file atsamv.c.

SAMV_EFC_FCMD_WP

#define SAMV_EFC_FCMD_WP   (0x1) /* (EFC) Write Page */

Definition at line 31 of file atsamv.c.

SAMV_EFC_FCMD_WPL

#define SAMV_EFC_FCMD_WPL   (0x2) /* (EFC) Write Page and Lock */

Definition at line 32 of file atsamv.c.

SAMV_FLASH_BASE

#define SAMV_FLASH_BASE   0x00400000

Definition at line 54 of file atsamv.c.

SAMV_NUM_GPNVM_BITS

#define SAMV_NUM_GPNVM_BITS   9

Definition at line 50 of file atsamv.c.

SAMV_PAGE_SIZE

#define SAMV_PAGE_SIZE   512

Definition at line 53 of file atsamv.c.

SAMV_SECTOR_SIZE

#define SAMV_SECTOR_SIZE   16384

Definition at line 52 of file atsamv.c.

Function Documentation

COMMAND_HANDLER()

COMMAND_HANDLER

(

samv_handle_gpnvm_command

)

Definition at line 580 of file atsamv.c.

FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER

(

samv_flash_bank_command

)

Definition at line 293 of file atsamv.c.

References bank, ERROR_OK, and LOG_INFO.

samv_auto_probe()

static int samv_auto_probe ( struct flash_bank *  bank )

static

Definition at line 358 of file atsamv.c.

References bank, ERROR_OK, samv_flash_bank::probed, and samv_probe().

Referenced by samv_erase().

samv_clear_gpnvm()

static int samv_clear_gpnvm ( struct target *  target, unsigned int  gpnvm  )

static

Definition at line 193 of file atsamv.c.

References ERROR_FAIL, ERROR_OK, LOG_DEBUG, LOG_ERROR, NULL, SAMV_EFC_FCMD_CFB, samv_efc_perform_command(), samv_get_gpnvm(), and SAMV_NUM_GPNVM_BITS.

samv_efc_get_result()

static int samv_efc_get_result ( struct target *  target, uint32_t *  v  )

static

Definition at line 75 of file atsamv.c.

References OFFSET_EFC_FRR, SAMV_CONTROLLER_ADDR, and target_read_u32().

Referenced by samv_get_gpnvm(), and samv_protect_check().

samv_efc_get_status()

static int samv_efc_get_status ( struct target *  target, uint32_t *  v  )

static

Definition at line 69 of file atsamv.c.

References OFFSET_EFC_FSR, SAMV_CONTROLLER_ADDR, and target_read_u32().

Referenced by samv_efc_perform_command(), and samv_efc_start_command().

samv_efc_perform_command()

static int samv_efc_perform_command ( struct target *  target, unsigned int  command, unsigned int  argument, uint32_t *  status  )

static

Definition at line 102 of file atsamv.c.

References ERROR_FAIL, ERROR_OK, LOG_ERROR, samv_efc_get_status(), samv_efc_start_command(), status, and timeval_ms().

Referenced by samv_clear_gpnvm(), samv_erase(), samv_erase_pages(), samv_flash_lock(), samv_flash_unlock(), samv_get_gpnvm(), samv_page_write(), samv_protect_check(), and samv_set_gpnvm().

samv_efc_start_command()

static int samv_efc_start_command ( struct target *  target, unsigned int  command, unsigned int  argument  )

static

Definition at line 84 of file atsamv.c.

References ERROR_FAIL, ERROR_OK, LOG_DEBUG, LOG_ERROR, OFFSET_EFC_FCR, SAMV_CONTROLLER_ADDR, samv_efc_get_status(), and target_write_u32().

Referenced by samv_efc_perform_command().

samv_erase()

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

static

Definition at line 366 of file atsamv.c.

References bank, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, LOG_INFO, NULL, samv_auto_probe(), SAMV_EFC_FCMD_EA, samv_efc_perform_command(), samv_erase_pages(), status, and TARGET_HALTED.

samv_erase_pages()

static int samv_erase_pages ( struct target *  target, int  first_page, int  num_pages, uint32_t *  status  )

static

Definition at line 136 of file atsamv.c.

References SAMV_EFC_FCMD_EPA, samv_efc_perform_command(), and status.

Referenced by samv_erase().

samv_flash_lock()

static int samv_flash_lock ( struct target *  target, unsigned int  start_sector, unsigned int  end_sector  )

static

Definition at line 253 of file atsamv.c.

References ERROR_OK, SAMV_EFC_FCMD_SLB, samv_efc_perform_command(), SAMV_PAGE_SIZE, SAMV_SECTOR_SIZE, and status.

Referenced by samv_protect().

samv_flash_unlock()

static int samv_flash_unlock ( struct target *  target, unsigned int  start_sector, unsigned int  end_sector  )

static

Definition at line 233 of file atsamv.c.

References ERROR_OK, SAMV_EFC_FCMD_CLB, samv_efc_perform_command(), SAMV_PAGE_SIZE, SAMV_SECTOR_SIZE, and status.

Referenced by samv_protect().

samv_get_device_id()

static int samv_get_device_id ( struct flash_bank *  bank, uint32_t *  device_id  )

static

Definition at line 302 of file atsamv.c.

References bank, SAMV_CHIPID_CIDR, and target_read_u32().

Referenced by samv_probe().

samv_get_gpnvm()

static int samv_get_gpnvm ( struct target *  target, unsigned int  gpnvm, unsigned int *  out  )

static

Definition at line 169 of file atsamv.c.

References ERROR_FAIL, ERROR_OK, LOG_ERROR, NULL, SAMV_EFC_FCMD_GFB, samv_efc_get_result(), samv_efc_perform_command(), and SAMV_NUM_GPNVM_BITS.

Referenced by samv_clear_gpnvm(), and samv_set_gpnvm().

samv_get_info()

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

static

Definition at line 567 of file atsamv.c.

References bank, cmd, command_print_sameline(), ERROR_OK, samv_flash_bank::probed, and samv_probe().

samv_page_read()

static int samv_page_read ( struct target *  target, unsigned int  page_num, uint8_t *  buf  )

static

Definition at line 421 of file atsamv.c.

References addr, ERROR_OK, LOG_ERROR, SAMV_FLASH_BASE, SAMV_PAGE_SIZE, and target_read_memory().

Referenced by samv_write().

samv_page_write()

static int samv_page_write ( struct target *  target, unsigned int  pagenum, const uint8_t *  buf  )

static

Definition at line 432 of file atsamv.c.

References addr, ERROR_FAIL, ERROR_OK, LOG_DEBUG, LOG_ERROR, SAMV_EFC_FCMD_WP, samv_efc_perform_command(), SAMV_FLASH_BASE, SAMV_PAGE_SIZE, status, and target_write_memory().

Referenced by samv_write().

samv_probe()

static int samv_probe ( struct flash_bank *  bank )

static

Definition at line 307 of file atsamv.c.

References bank, eproc, ERROR_FAIL, ERROR_OK, LOG_ERROR, LOG_INFO, samv_flash_bank::probed, SAMV_FLASH_BASE, samv_get_device_id(), samv_protect_check(), SAMV_SECTOR_SIZE, and samv_flash_bank::size_bytes.

Referenced by samv_auto_probe(), and samv_get_info().

samv_protect()

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

static

Definition at line 404 of file atsamv.c.

References bank, ERROR_TARGET_NOT_HALTED, LOG_ERROR, samv_flash_lock(), samv_flash_unlock(), and TARGET_HALTED.

samv_protect_check()

static int samv_protect_check ( struct flash_bank *  bank )

static

Definition at line 273 of file atsamv.c.

References bank, ERROR_OK, NULL, SAMV_EFC_FCMD_GLB, samv_efc_get_result(), and samv_efc_perform_command().

Referenced by samv_probe().

samv_set_gpnvm()

static int samv_set_gpnvm ( struct target *  target, unsigned int  gpnvm  )

static

Definition at line 212 of file atsamv.c.

References ERROR_FAIL, ERROR_OK, LOG_ERROR, NULL, SAMV_EFC_FCMD_SFB, samv_efc_perform_command(), samv_get_gpnvm(), and SAMV_NUM_GPNVM_BITS.

samv_write()

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

static

Definition at line 460 of file atsamv.c.

References bank, buffer, count, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_DEBUG, LOG_ERROR, offset, samv_page_read(), SAMV_PAGE_SIZE, samv_page_write(), and TARGET_HALTED.

Variable Documentation

atsamv_command_handlers

const struct command_registration atsamv_command_handlers[]

static

Initial value:

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

Definition at line 580 of file atsamv.c.

atsamv_exec_command_handlers

const struct command_registration atsamv_exec_command_handlers[]

static

Initial value:

= {
    {
        .name = "gpnvm",
        .handler = samv_handle_gpnvm_command,
        .mode = COMMAND_EXEC,
        .usage = "[('clr'|'set'|'show') bitnum]",
        .help = "Without arguments, shows all bits in the gpnvm "
            "register.  Otherwise, clears, sets, or shows one "
            "General Purpose Non-Volatile Memory (gpnvm) bit.",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 580 of file atsamv.c.

atsamv_flash

const struct flash_driver atsamv_flash

Initial value:

= {
    .name = "atsamv",
    .commands = atsamv_command_handlers,
    .flash_bank_command = samv_flash_bank_command,
    .erase = samv_erase,
    .protect = samv_protect,
    .write = samv_write,
    .read = default_flash_read,
    .probe = samv_probe,
    .auto_probe = samv_auto_probe,
    .erase_check = default_flash_blank_check,
    .protect_check = samv_protect_check,
    .info = samv_get_info,
    .free_driver_priv = default_flash_free_driver_priv,
}

Definition at line 580 of file atsamv.c.