mx3.c File Reference

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Functions
static int	do_data_output (struct nand_device *nand)
static int	get_next_byte_from_sram_buffer (struct target *target, uint8_t *value)
static int	get_next_halfword_from_sram_buffer (struct target *target, uint16_t *value)
static int	imx31_address (struct nand_device *nand, uint8_t address)
static int	imx31_command (struct nand_device *nand, uint8_t command)
static int	imx31_init (struct nand_device *nand)
static int	imx31_nand_ready (struct nand_device *nand, int tout)
static int	imx31_read_data (struct nand_device *nand, void *data)
static int	imx31_read_page (struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
static int	imx31_reset (struct nand_device *nand)
static int	imx31_write_data (struct nand_device *nand, uint16_t data)
static int	imx31_write_page (struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size)
static int	initialize_nf_controller (struct nand_device *nand)
	NAND_DEVICE_COMMAND_HANDLER (imx31_nand_device_command)
static int	poll_for_complete_op (struct target *target, const char *text)
static int	test_iomux_settings (struct target *target, uint32_t value, uint32_t mask, const char *text)
static int	validate_target_state (struct nand_device *nand)

Variables
static const char	data_block_size_err_msg []
static const char	get_status_register_err_msg [] = "can't get NAND status"
struct nand_flash_controller	imx31_nand_flash_controller
static uint32_t	in_sram_address
static unsigned char	sign_of_sequental_byte_read
static const char	sram_buffer_bounds_err_msg []
static const char	target_not_halted_err_msg []

Function Documentation

do_data_output()

static int do_data_output ( struct nand_device *  nand )

static

Definition at line 645 of file mx3.c.

References nand_device::controller_priv, ERROR_NAND_OPERATION_FAILED, ERROR_OK, mx3_nf_controller::fin, mx3_nf_controller::flags, mx3_nf_flags::hw_ecc_enabled, LOG_DEBUG, MX3_NF_BIT_DATAOUT_TYPE, MX3_NF_CFG2, MX3_NF_DATAOUT_PAGE, MX3_NF_ECCSTATUS, MX3_NF_FIN_DATAOUT, MX3_NF_FIN_NONE, mx3_nf_controller::optype, poll_for_complete_op(), nand_device::target, target_read_u16(), and target_write_u16().

Referenced by imx31_init(), imx31_read_data(), imx31_read_page(), and imx31_write_page().

get_next_byte_from_sram_buffer()

static int get_next_byte_from_sram_buffer ( struct target *  target, uint8_t *  value  )

static

Definition at line 565 of file mx3.c.

References ERROR_NAND_OPERATION_FAILED, ERROR_OK, in_sram_address, LOG_ERROR, MX3_NF_LAST_BUFFER_ADDR, sign_of_sequental_byte_read, sram_buffer_bounds_err_msg, and target_read_u16().

Referenced by imx31_read_data().

get_next_halfword_from_sram_buffer()

static int get_next_halfword_from_sram_buffer ( struct target *  target, uint16_t *  value  )

static

Definition at line 595 of file mx3.c.

References ERROR_NAND_OPERATION_FAILED, ERROR_OK, in_sram_address, LOG_ERROR, MX3_NF_LAST_BUFFER_ADDR, sram_buffer_bounds_err_msg, and target_read_u16().

Referenced by imx31_read_data().

imx31_address()

static int imx31_address ( struct nand_device *  nand, uint8_t  address  )

static

Definition at line 312 of file mx3.c.

References ERROR_OK, MX3_NF_BIT_OP_FAI, MX3_NF_CFG2, MX3_NF_FADDR, poll_for_complete_op(), nand_device::target, target_write_u16(), and validate_target_state().

Referenced by imx31_init(), imx31_read_page(), and imx31_write_page().

imx31_command()

static int imx31_command ( struct nand_device *  nand, uint8_t  command  )

static

Definition at line 244 of file mx3.c.

References nand_device::controller_priv, ERROR_OK, mx3_nf_controller::fin, in_sram_address, MX3_NF_BIT_OP_FCI, MX3_NF_CFG2, MX3_NF_DATAOUT_NANDID, MX3_NF_DATAOUT_NANDSTATUS, MX3_NF_DATAOUT_PAGE, MX3_NF_FCMD, MX3_NF_FIN_DATAOUT, MX3_NF_MAIN_BUFFER0, MX3_NF_SPARE_BUFFER0, NAND_CMD_READ0, NAND_CMD_READ1, NAND_CMD_READID, NAND_CMD_READOOB, NAND_CMD_STATUS, mx3_nf_controller::optype, nand_device::page_size, poll_for_complete_op(), sign_of_sequental_byte_read, nand_device::target, target_write_u16(), and validate_target_state().

Referenced by imx31_init(), imx31_read_page(), and imx31_write_page().

imx31_init()

static int imx31_init ( struct nand_device *  nand )

static

Definition at line 85 of file mx3.c.

References nand_device::bus_width, nand_device::controller_priv, do_data_output(), ERROR_FAIL, ERROR_OK, mx3_nf_controller::flags, get_status_register_err_msg, imx31_address(), imx31_command(), initialize_nf_controller(), LOG_ERROR, LOG_INFO, MX3_CCM_CGR2, MX3_GPR, MX3_NF_BUFSIZ, MX3_NF_MAIN_BUFFER0, MX3_PCSR, NAND_CMD_STATUS, mx3_nf_flags::nand_readonly, mx3_nf_flags::one_kb_sram, nand_device::page_size, nand_device::target, target_read_u16(), target_read_u32(), target_write_u32(), test_iomux_settings(), and validate_target_state().

imx31_nand_ready()

static int imx31_nand_ready ( struct nand_device *  nand, int  tout  )

static

Definition at line 339 of file mx3.c.

References alive_sleep(), ERROR_OK, MX3_NF_BIT_OP_DONE, MX3_NF_CFG2, nand_device::target, target_read_u16(), and validate_target_state().

imx31_read_data()

static int imx31_read_data ( struct nand_device *  nand, void *  data  )

static

Definition at line 194 of file mx3.c.

References nand_device::bus_width, do_data_output(), ERROR_OK, get_next_byte_from_sram_buffer(), get_next_halfword_from_sram_buffer(), nand_device::target, and validate_target_state().

imx31_read_page()

static int imx31_read_page ( struct nand_device *  nand, uint32_t  page, uint8_t *  data, uint32_t  data_size, uint8_t *  oob, uint32_t  oob_size  )

static

Definition at line 452 of file mx3.c.

References nand_device::address_cycles, data_block_size_err_msg, do_data_output(), ERROR_NAND_OPERATION_FAILED, ERROR_OK, imx31_address(), imx31_command(), LOG_ERROR, MX3_NF_MAIN_BUFFER0, MX3_NF_SPARE_BUFFER0, NAND_CMD_READ0, NAND_CMD_READSTART, nand_device::target, target_read_buffer(), and validate_target_state().

imx31_reset()

static int imx31_reset ( struct nand_device *  nand )

static

Definition at line 231 of file mx3.c.

References ERROR_OK, initialize_nf_controller(), and validate_target_state().

imx31_write_data()

static int imx31_write_data ( struct nand_device *  nand, uint16_t  data  )

static

Definition at line 225 of file mx3.c.

References ERROR_NAND_OPERATION_FAILED, and LOG_ERROR.

imx31_write_page()

static int imx31_write_page ( struct nand_device *  nand, uint32_t  page, uint8_t *  data, uint32_t  data_size, uint8_t *  oob, uint32_t  oob_size  )

static

Definition at line 363 of file mx3.c.

References nand_device::address_cycles, nand_device::controller_priv, data_block_size_err_msg, do_data_output(), ERROR_NAND_OPERATION_FAILED, ERROR_OK, mx3_nf_controller::flags, get_status_register_err_msg, mx3_nf_flags::hw_ecc_enabled, imx31_address(), imx31_command(), LOG_DEBUG, LOG_ERROR, MX3_NF_BIT_OP_FDI, MX3_NF_CFG2, MX3_NF_MAIN_BUFFER0, MX3_NF_SPARE_BUFFER0, NAND_CMD_PAGEPROG, NAND_CMD_SEQIN, NAND_CMD_STATUS, poll_for_complete_op(), nand_device::target, target_read_u16(), target_write_buffer(), target_write_u16(), and validate_target_state().

initialize_nf_controller()

static int initialize_nf_controller ( struct nand_device *  nand )

static

Definition at line 517 of file mx3.c.

References nand_device::controller_priv, target::endianness, ERROR_FAIL, ERROR_OK, mx3_nf_controller::flags, mx3_nf_flags::hw_ecc_enabled, in_sram_address, LOG_ERROR, MX3_NF_BIT_BE_EN, MX3_NF_BIT_ECC_EN, MX3_NF_BIT_INT_DIS, MX3_NF_BIT_RESET_EN, MX3_NF_BUFADDR, MX3_NF_BUFCFG, MX3_NF_CFG1, MX3_NF_FWP, MX3_NF_LOCKEND, MX3_NF_LOCKSTART, MX3_NF_MAIN_BUFFER0, sign_of_sequental_byte_read, nand_device::target, TARGET_BIG_ENDIAN, target_read_u16(), and target_write_u16().

Referenced by imx31_init(), and imx31_reset().

NAND_DEVICE_COMMAND_HANDLER()

NAND_DEVICE_COMMAND_HANDLER

(

imx31_nand_device_command

)

Definition at line 52 of file mx3.c.

References CMD_ARGC, CMD_ARGV, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, mx3_nf_controller::fin, mx3_nf_controller::flags, mx3_nf_flags::hw_ecc_enabled, LOG_ERROR, MX3_NF_DATAOUT_PAGE, MX3_NF_FIN_NONE, mx3_nf_controller::optype, mx3_nf_flags::target_little_endian, and TARGET_LITTLE_ENDIAN.

poll_for_complete_op()

static int poll_for_complete_op ( struct target *  target, const char *  text  )

static

Definition at line 609 of file mx3.c.

References ERROR_NAND_OPERATION_FAILED, ERROR_OK, LOG_ERROR, MX3_NF_BIT_OP_DONE, MX3_NF_CFG2, and target_read_u16().

Referenced by do_data_output(), imx31_address(), imx31_command(), and imx31_write_page().

test_iomux_settings()

static int test_iomux_settings ( struct target *  target, uint32_t  value, uint32_t  mask, const char *  text  )

static

Definition at line 505 of file mx3.c.

References ERROR_FAIL, ERROR_OK, LOG_ERROR, mask, and target_read_u32().

Referenced by imx31_init().

validate_target_state()

static int validate_target_state ( struct nand_device *  nand )

static

Definition at line 625 of file mx3.c.

References nand_device::controller_priv, target::endianness, ERROR_NAND_OPERATION_FAILED, ERROR_OK, mx3_nf_controller::flags, LOG_ERROR, target::state, nand_device::target, TARGET_HALTED, mx3_nf_flags::target_little_endian, TARGET_LITTLE_ENDIAN, and target_not_halted_err_msg.

Referenced by imx31_address(), imx31_command(), imx31_init(), imx31_nand_ready(), imx31_read_data(), imx31_read_page(), imx31_reset(), and imx31_write_page().

Variable Documentation

data_block_size_err_msg

const char data_block_size_err_msg[]

static

Initial value:

=
        "minimal granularity is one half-word, %" PRIu32 " is incorrect"

Definition at line 31 of file mx3.c.

Referenced by imx31_read_page(), and imx31_write_page().

get_status_register_err_msg

const char get_status_register_err_msg[] = "can't get NAND status"

static

Definition at line 35 of file mx3.c.

Referenced by imx31_init(), and imx31_write_page().

imx31_nand_flash_controller

struct nand_flash_controller imx31_nand_flash_controller

Initial value:

= {
    .name = "imx31",
    .usage = "nand device imx31 target noecc|hwecc",
    .nand_device_command = &imx31_nand_device_command,
    .init = &imx31_init,
    .reset = &imx31_reset,
    .command = &imx31_command,
    .address = &imx31_address,
    .write_data = &imx31_write_data,
    .read_data = &imx31_read_data,
    .write_page = &imx31_write_page,
    .read_page = &imx31_read_page,
    .nand_ready = &imx31_nand_ready,
}

Definition at line 645 of file mx3.c.

in_sram_address

uint32_t in_sram_address

static

Definition at line 36 of file mx3.c.

Referenced by get_next_byte_from_sram_buffer(), get_next_halfword_from_sram_buffer(), imx31_command(), and initialize_nf_controller().

sign_of_sequental_byte_read

unsigned char sign_of_sequental_byte_read

static

Definition at line 37 of file mx3.c.

Referenced by get_next_byte_from_sram_buffer(), imx31_command(), and initialize_nf_controller().

sram_buffer_bounds_err_msg

const char sram_buffer_bounds_err_msg[]

static

Initial value:

=
        "trying to access out of SRAM buffer bound (addr=0x%" PRIx32 ")"

Definition at line 33 of file mx3.c.

Referenced by get_next_byte_from_sram_buffer(), and get_next_halfword_from_sram_buffer().

target_not_halted_err_msg

const char target_not_halted_err_msg[]

static

Initial value:

=
        "target must be halted to use mx3 NAND flash controller"

Definition at line 29 of file mx3.c.

Referenced by validate_target_state().