xenon_sfcx.h

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#ifndef __xenon_sfcx_h
#define __xenon_sfcx_h
 
//Registers
#define SFCX_CONFIG             0x00
#define SFCX_STATUS             0x04
#define SFCX_COMMAND            0x08
#define SFCX_ADDRESS            0x0C
#define SFCX_DATA               0x10
#define SFCX_LOGICAL            0x14
#define SFCX_PHYSICAL           0x18
#define SFCX_DPHYSADDR          0x1C
#define SFCX_MPHYSADDR          0x20
#define SFCX_PHISON             0xFC
 
//Commands for Command Register
#define PAGE_BUF_TO_REG         0x00            //Read page buffer to data register
#define REG_TO_PAGE_BUF         0x01            //Write data register to page buffer
#define LOG_PAGE_TO_BUF         0x02            //Read logical page into page buffer
#define PHY_PAGE_TO_BUF         0x03            //Read physical page into page buffer
#define WRITE_PAGE_TO_PHY       0x04            //Write page buffer to physical page
#define BLOCK_ERASE             0x05            //Block Erase
#define DMA_LOG_TO_RAM          0x06            //DMA logical flash to main memory
#define DMA_PHY_TO_RAM          0x07            //DMA physical flash to main memory
#define DMA_RAM_TO_PHY          0x08            //DMA main memory to physical flash
#define UNLOCK_CMD_0            0x55            //Unlock command 0
#define UNLOCK_CMD_1            0xAA            //Unlock command 1
 
//Config Register bitmasks
#define CONFIG_DBG_MUX_SEL      0x7C000000u     //Debug MUX Select
#define CONFIG_DIS_EXT_ER       0x2000000u      //Disable External Error (Pre Jasper?)
#define CONFIG_CSR_DLY          0x1FE0000u      //Chip Select to Timing Delay
#define CONFIG_ULT_DLY          0x1F800u        //Unlocking Timing Delay
#define CONFIG_BYPASS           0x400u          //Debug Bypass
#define CONFIG_DMA_LEN          0x3C0u          //DMA Length in Pages
#define CONFIG_FLSH_SIZE        0x30u           //Flash Size (Pre Jasper)
#define CONFIG_WP_EN            0x8u            //Write Protect Enable
#define CONFIG_INT_EN           0x4u            //Interrupt Enable
#define CONFIG_ECC_DIS          0x2u            //ECC Decode Disable
#define CONFIG_SW_RST           0x1u            //Software reset
 
//Status Register bitmasks
#define STATUS_ILL_LOG          0x800u          //Illegal Logical Access
#define STATUS_PIN_WP_N         0x400u          //NAND Not Write Protected
#define STATUS_PIN_BY_N         0x200u          //NAND Not Busy
#define STATUS_INT_CP           0x100u          //Interrupt
#define STATUS_ADDR_ER          0x80u           //Address Alignment Error
#define STATUS_BB_ER            0x40u           //Bad Block Error
#define STATUS_RNP_ER           0x20u           //Logical Replacement not found
#define STATUS_ECC_ER           0x1Cu           //ECC Error, 3 bits, need to determine each
#define STATUS_WR_ER            0x2u            //Write or Erase Error
#define STATUS_BUSY             0x1u            //Busy
#define STATUS_ERROR            (STATUS_ILL_LOG|STATUS_ADDR_ER|STATUS_BB_ER|STATUS_RNP_ER|STATUS_ECC_ER|STATUS_WR_ER)
 
//Page bitmasks
#define PAGE_VALID              0x4000000u
#define PAGE_PID                0x3FFFE00u
 
// API Consumers should use these two defines to
// use for creating static buffers at compile time
#define MAX_PAGE_SZ             0x210           //Max known hardware physical page size
#define MAX_BLOCK_SZ            0x42000         //Max known hardware physical block size
 
#define META_TYPE_0             0x00            //Pre Jasper
#define META_TYPE_1             0x01            //Jasper 16MB
#define META_TYPE_2             0x02            //Jasper 256MB and 512MB Large Block
 
#define CONFIG_BLOCKS           0x04            //Number of blocks assigned for config data
 
// variables should NOT be in a header file! anything that uses this header is increased in size by this amount! [cOz]
// static unsigned char sfcx_page[MAX_PAGE_SZ];   //Max known hardware physical page size
// static unsigned char sfcx_block[MAX_BLOCK_SZ]; //Max known hardware physical block size
 
#define RAW_NAND_64             0x4200000
 
#define SFCX_INITIALIZED        1
 
// status ok or status ecc corrected
//#define SFCX_SUCCESS(status) (((int) status == STATUS_PIN_BY_N) || ((int) status & STATUS_ECC_ER))
// define success as no ecc error and no bad block error
#define SFCX_SUCCESS(status) ((status&STATUS_ERROR)==0)
 
struct sfc
{
    int initialized;
    int meta_type;
 
    int page_sz;
    int meta_sz;
    int page_sz_phys;
 
    int pages_in_block;
    int block_sz;
    int block_sz_phys;
 
    int size_mb;
    int size_bytes;
    int size_bytes_phys;
    int size_pages;
    int size_blocks;
 
    int blocks_per_lg_block;
    int size_usable_fs;
    int addr_config;
    int len_config;
};
 
unsigned int sfcx_init(void);
 
void sfcx_writereg(int addr, unsigned long data);
unsigned long sfcx_readreg(int addr);
 
int sfcx_erase_block(int address);
int sfcx_read_page(unsigned char *data, int address, int raw);
int sfcx_write_page(unsigned char *data, int address);
int sfcx_read_block(unsigned char *data, int address, int raw);
int sfcx_write_block(unsigned char *data, int address);
 
void sfcx_calcecc(unsigned int *data);
int sfcx_get_blocknumber(unsigned char *data);
void sfcx_set_blocknumber(unsigned char *data, int num);
int sfcx_get_blockversion(unsigned char *data);
void sfcx_set_blockversion(unsigned char *data, int ver);
void sfcx_set_pagevalid(unsigned char *data);
void sfcx_set_pageinvalid(unsigned char *data);
int sfcx_is_pagevalid(unsigned char *data);
int sfcx_is_pagezeroed(unsigned char *data);
int sfcx_is_pageerased(unsigned char *data);
int sfcx_block_to_address(int block);
int sfcx_address_to_block(int address);
int sfcx_block_to_rawaddress(int block);
int sfcx_rawaddress_to_block(int address);
int rawflash_writeImage(int len, int f);
int try_rawflash(char *filename);
 
int sfcx_read_metadata_type(void);
 
// for use in other files
extern struct sfc sfc;
#endif