spi_flash.c File Reference

SPI Flash.

Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.

#include "spi_flash/include/spi_flash.h"

Macros
#define	CORTUS_SHARE_MEM_BASE   (0x60000000UL)
#define	DUMMY_REGISTER   (0x1084)
#define	FLASH_MULTI_WRITE
#define	GET_UINT32(X, Y)   (X[0+Y] + ((uint32)X[1+Y]<<8) + ((uint32)X[2+Y]<<16) +((uint32)X[3+Y]<<24))
#define	HOST_SHARE_MEM_BASE   (0xd0000UL)
#define	MAX_ATTEMPT_STATUS_READ   50000
#define	MAX_PROG_CNT   2
#define	MAX_RETRY   4
#define	NMI_SPI_FLASH_ADDR   (0x111c)
#define	SPI_FLASH_BASE   (0x10200)
#define	SPI_FLASH_BUF1   (SPI_FLASH_BASE + 0x0c)
#define	SPI_FLASH_BUF2   (SPI_FLASH_BASE + 0x10)
#define	SPI_FLASH_BUF_DIR   (SPI_FLASH_BASE + 0x14)
#define	SPI_FLASH_CMD_CNT   (SPI_FLASH_BASE + 0x04)
#define	SPI_FLASH_DATA_CNT   (SPI_FLASH_BASE + 0x08)
#define	SPI_FLASH_DMA_ADDR   (SPI_FLASH_BASE + 0x1c)
#define	SPI_FLASH_MODE   (SPI_FLASH_BASE + 0x00)
#define	SPI_FLASH_MSB_CTL   (SPI_FLASH_BASE + 0x20)
#define	SPI_FLASH_TR_DONE   (SPI_FLASH_BASE + 0x18)
#define	SPI_FLASH_TX_CTL   (SPI_FLASH_BASE + 0x24)
#define	TIMEOUT   (-1) /*MS*/

Functions
sint8	spi_flash_erase (uint32 u32Offset, uint32 u32Sz)
	Erase a specified portion of SPI Flash. . More...
uint32	spi_flash_get_size (void)
	Get size of SPI Flash. More...
static sint8	spi_flash_load_to_cortus_mem (uint32 u32MemAdr, uint32 u32FlashAdr, uint32 u32Sz)
static sint8	spi_flash_page_program (uint32 u32MemAdr, uint32 u32FlashAdr, uint32 u32Sz)
static sint8	spi_flash_pp (uint32 u32Offset, uint8 *pu8Buf, uint16 u16Sz)
static uint32	spi_flash_rdid (void)
	Read SPI Flash ID. More...
sint8	spi_flash_read (uint8 *pu8Buf, uint32 u32offset, uint32 u32Sz)
	Read a specified portion of data from SPI Flash. . More...
static sint8	spi_flash_read_internal (uint8 *pu8Buf, uint32 u32Addr, uint32 u32Sz)
static sint8	spi_flash_read_status_reg (uint8 *val)
static sint8	spi_flash_sector_erase (uint32 u32FlashAdr)
sint8	spi_flash_write (uint8 *pu8Buf, uint32 u32Offset, uint32 u32Sz)
	Write a specified portion of data to SPI Flash. . More...
static sint8	spi_flash_write_disable (void)
	Send write disable command to SPI flash. More...
static sint8	spi_flash_write_enable (void)
	Send write enable command to SPI flash. More...

#define CORTUS_SHARE_MEM_BASE   (0x60000000UL)

#define DUMMY_REGISTER   (0x1084)

Referenced by spi_flash_rdid(), and spi_flash_read_status_reg().

#define FLASH_MULTI_WRITE

#define GET_UINT32	(		X,
			Y
	)		(X[0+Y] + ((uint32)X[1+Y]<<8) + ((uint32)X[2+Y]<<16) +((uint32)X[3+Y]<<24))

#define HOST_SHARE_MEM_BASE   (0xd0000UL)

Referenced by spi_flash_pp(), and spi_flash_read_internal().

#define MAX_ATTEMPT_STATUS_READ   50000

Referenced by spi_flash_erase(), and spi_flash_pp().

#define MAX_PROG_CNT   2

Referenced by spi_flash_erase(), and spi_flash_pp().

#define MAX_RETRY   4

Referenced by spi_flash_erase(), and spi_flash_pp().

#define NMI_SPI_FLASH_ADDR   (0x111c)

#define SPI_FLASH_BASE   (0x10200)

#define SPI_FLASH_BUF1   (SPI_FLASH_BASE + 0x0c)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_BUF2   (SPI_FLASH_BASE + 0x10)

Referenced by spi_flash_load_to_cortus_mem().

#define SPI_FLASH_BUF_DIR   (SPI_FLASH_BASE + 0x14)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_CMD_CNT   (SPI_FLASH_BASE + 0x04)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_DATA_CNT   (SPI_FLASH_BASE + 0x08)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_DMA_ADDR   (SPI_FLASH_BASE + 0x1c)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_MODE   (SPI_FLASH_BASE + 0x00)

#define SPI_FLASH_MSB_CTL   (SPI_FLASH_BASE + 0x20)

#define SPI_FLASH_TR_DONE   (SPI_FLASH_BASE + 0x18)

Referenced by spi_flash_load_to_cortus_mem(), spi_flash_page_program(), spi_flash_rdid(), spi_flash_read_status_reg(), spi_flash_sector_erase(), spi_flash_write_disable(), and spi_flash_write_enable().

#define SPI_FLASH_TX_CTL   (SPI_FLASH_BASE + 0x24)

#define TIMEOUT   (-1) /*MS*/

static sint8 spi_flash_load_to_cortus_mem ( uint32  u32MemAdr, uint32  u32FlashAdr, uint32  u32Sz  )

static

References M2M_SUCCESS, nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF2, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_read_internal().

static sint8 spi_flash_page_program ( uint32  u32MemAdr, uint32  u32FlashAdr, uint32  u32Sz  )

static

References M2M_SUCCESS, nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_pp().

static sint8 spi_flash_pp ( uint32  u32Offset, uint8 *  pu8Buf, uint16  u16Sz  )

static

References HOST_SHARE_MEM_BASE, M2M_ERR_FAIL, M2M_SUCCESS, MAX_ATTEMPT_STATUS_READ, MAX_PROG_CNT, MAX_RETRY, nm_write_block(), spi_flash_page_program(), spi_flash_read_status_reg(), spi_flash_write_disable(), and spi_flash_write_enable().

Referenced by spi_flash_write().

spi_flash_rdid ( void  )

static

Read SPI Flash ID.

Returns

SPI FLash ID

References DUMMY_REGISTER, M2M_ERR_INIT, M2M_PRINT, M2M_SUCCESS, nm_read_reg(), nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_get_size().

static sint8 spi_flash_read_internal ( uint8 *  pu8Buf, uint32  u32Addr, uint32  u32Sz  )

static

References HOST_SHARE_MEM_BASE, M2M_SUCCESS, nm_read_block(), and spi_flash_load_to_cortus_mem().

Referenced by spi_flash_read().

static sint8 spi_flash_read_status_reg ( uint8 *  val )

static

References DUMMY_REGISTER, M2M_SUCCESS, nm_read_reg(), nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_erase(), and spi_flash_pp().

static sint8 spi_flash_sector_erase ( uint32  u32FlashAdr )

static

References M2M_SUCCESS, nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_erase().

spi_flash_write_disable ( void  )

static

Send write disable command to SPI flash.

Note

Compatible with MX25L6465E and should be working with other types

References M2M_SUCCESS, nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_pp().

spi_flash_write_enable ( void  )

static

Send write enable command to SPI flash.

Returns

Status of execution

Note

Compatible with MX25L6465E and should be working with other types

References M2M_SUCCESS, nm_read_reg_with_ret(), nm_write_reg(), SPI_FLASH_BUF1, SPI_FLASH_BUF_DIR, SPI_FLASH_CMD_CNT, SPI_FLASH_DATA_CNT, SPI_FLASH_DMA_ADDR, and SPI_FLASH_TR_DONE.

Referenced by spi_flash_erase(), and spi_flash_pp().