sys-spi-nand.c File Reference

#include <io.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <timer.h>
#include <common.h>
#include <log.h>
#include <sys-clk.h>
#include <sys-dma.h>
#include <sys-gpio.h>
#include "sys-spi-nand.h"
#include "sys-spi.h"

Include dependency graph for sys-spi-nand.c:

Enumerations
enum	{   OPCODE_READ_ID = 0x9f , OPCODE_READ_STATUS = 0x0f , OPCODE_WRITE_STATUS = 0x1f , OPCODE_READ_PAGE = 0x13 ,   OPCODE_READ = 0x03 , OPCODE_FAST_READ = 0x0b , OPCODE_FAST_READ_DUAL_O = 0x3b , OPCODE_FAST_READ_QUAD_O = 0x6b ,   OPCODE_FAST_READ_DUAL_IO = 0xbb , OPCODE_FAST_READ_QUAD_IO = 0xeb , OPCODE_WRITE_ENABLE = 0x06 , OPCODE_BLOCK_ERASE = 0xd8 ,   OPCODE_PROGRAM_LOAD = 0x02 , OPCODE_PROGRAM_EXEC = 0x10 , OPCODE_RESET = 0xff }
enum	{ CONFIG_ADDR_PROTECT = 0xa0 , CONFIG_ADDR_OTP = 0xb0 , CONFIG_ADDR_STATUS = 0xc0 , CONFIG_POS_BUF = 0x08 }
enum	spi_mfr_id {   SPI_NAND_MFR_WINBOND = 0xef , SPI_NAND_MFR_GIGADEVICE = 0xc8 , SPI_NAND_MFR_MACRONIX = 0xc2 , SPI_NAND_MFR_MICRON = 0x2c ,   SPI_NAND_MFR_FORESEE = 0xcd , SPI_NAND_MFR_ETRON = 0xd5 , SPI_NAND_MFR_XTX = 0x0b }

Functions
static int	spi_nand_info (sunxi_spi_t *spi)
	Retrieve SPI NAND information.
	__attribute__ ((unused))
	Perform a reset operation on the SPI NAND.
static int	spi_nand_get_config (sunxi_spi_t *spi, uint8_t addr, uint8_t *val)
	Get configuration value from SPI NAND at specified address.
static int	spi_nand_set_config (sunxi_spi_t *spi, uint8_t addr, uint8_t val)
	Set configuration value to SPI NAND at specified address.
static bool	spi_nand_wait_while_busy (sunxi_spi_t *spi)
	Wait until SPI NAND is not busy.
int	spi_nand_detect (sunxi_spi_t *spi)
	Detect and initialize SPI NAND flash.
static int	spi_nand_load_page (sunxi_spi_t *spi, uint32_t offset)
	Load a page from SPI NAND flash at the specified offset.
uint32_t	spi_nand_read (sunxi_spi_t *spi, uint8_t *buf, uint32_t addr, uint32_t rxlen)
	Read data from SPI NAND flash.

Variables
static const spi_nand_info_t	spi_nand_infos []
static spi_nand_info_t	info

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
OPCODE_READ_ID
OPCODE_READ_STATUS
OPCODE_WRITE_STATUS
OPCODE_READ_PAGE
OPCODE_READ
OPCODE_FAST_READ
OPCODE_FAST_READ_DUAL_O
OPCODE_FAST_READ_QUAD_O
OPCODE_FAST_READ_DUAL_IO
OPCODE_FAST_READ_QUAD_IO
OPCODE_WRITE_ENABLE
OPCODE_BLOCK_ERASE
OPCODE_PROGRAM_LOAD
OPCODE_PROGRAM_EXEC
OPCODE_RESET

anonymous enum

anonymous enum

Enumerator
CONFIG_ADDR_PROTECT
CONFIG_ADDR_OTP
CONFIG_ADDR_STATUS
CONFIG_POS_BUF

spi_mfr_id

enum spi_mfr_id

Enumerator
SPI_NAND_MFR_WINBOND
SPI_NAND_MFR_GIGADEVICE
SPI_NAND_MFR_MACRONIX
SPI_NAND_MFR_MICRON
SPI_NAND_MFR_FORESEE
SPI_NAND_MFR_ETRON
SPI_NAND_MFR_XTX

Function Documentation

__attribute__()

__attribute__

(

(unused)

)

Perform a reset operation on the SPI NAND.

Parameters

spi	Pointer to the sunxi_spi_t structure.

Returns

0 on success, -1 on failure.

spi_nand_detect()

int spi_nand_detect

(

sunxi_spi_t *

spi

)

Detect and initialize SPI NAND flash.

Parameters

spi	Pointer to the sunxi_spi_t structure.

Returns

0 on success, -1 on failure.

spi_nand_get_config()

static int spi_nand_get_config ( sunxi_spi_t *  spi, uint8_t  addr, uint8_t *  val  )

static

Get configuration value from SPI NAND at specified address.

Parameters

spi	Pointer to the sunxi_spi_t structure.
addr	Address to read from.
val	Pointer to store the configuration value.

Returns

0 on success, -1 on failure.

spi_nand_info()

static int spi_nand_info ( sunxi_spi_t *  spi )

static

Retrieve SPI NAND information.

Parameters

spi	Pointer to the sunxi_spi_t structure.

Returns

0 on success, -1 on failure.

spi_nand_load_page()

static int spi_nand_load_page ( sunxi_spi_t *  spi, uint32_t  offset  )

static

Load a page from SPI NAND flash at the specified offset.

Parameters

spi	Pointer to the sunxi_spi_t structure.
offset	Offset of the page to load.

Returns

0 on success, -1 on failure.

spi_nand_read()

uint32_t spi_nand_read	(	sunxi_spi_t *	spi,
		uint8_t *	buf,
		uint32_t	addr,
		uint32_t	rxlen
	)

Read data from SPI NAND flash.

Parameters

spi	Pointer to the sunxi_spi_t structure.
buf	Pointer to the buffer to store the read data.
addr	Starting address to read from.
rxlen	Number of bytes to read.

Returns

Number of bytes read on success, -1 on failure.

spi_nand_set_config()

static int spi_nand_set_config ( sunxi_spi_t *  spi, uint8_t  addr, uint8_t  val  )

static

Set configuration value to SPI NAND at specified address.

Parameters

spi	Pointer to the sunxi_spi_t structure.
addr	Address to write to.
val	Value to be written.

Returns

0 on success, -1 on failure.

spi_nand_wait_while_busy()

static bool spi_nand_wait_while_busy ( sunxi_spi_t *  spi )

static

Wait until SPI NAND is not busy.

Parameters

spi	Pointer to the sunxi_spi_t structure.

Variable Documentation

info

spi_nand_info_t info

static

spi_nand_infos

const spi_nand_info_t spi_nand_infos[]

static