FlashOS.h

/* Copyright (c) 2003 - 2015 ARM LIMITED

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   - Neither the name of ARM nor the names of its contributors may be used
     to endorse or promote products derived from this software without
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   *
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
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   ---------------------------------------------------------------------------*/
/***********************************************************************/
/*                                                                     */
/*  FlashOS.H:  Data structures and entries                            */
/*              for Flash Programming Functions                        */
/*                                                                     */
/***********************************************************************/

#define VERS       1           // Interface Version 1.01

#define UNKNOWN    0           // Unknown
#define ONCHIP     1           // On-chip Flash Memory
#define EXT8BIT    2           // External Flash Device on 8-bit  Bus
#define EXT16BIT   3           // External Flash Device on 16-bit Bus
#define EXT32BIT   4           // External Flash Device on 32-bit Bus
#define EXTSPI     5           // External Flash Device on SPI

#define SECTOR_NUM 512         // Max Number of Sector Items
#define PAGE_MAX   65536       // Max Page Size for Programming

struct FlashSectors  {
  unsigned long   szSector;    // Sector Size in Bytes
  unsigned long AddrSector;    // Address of Sector
};

#define SECTOR_END 0xFFFFFFFF, 0xFFFFFFFF

struct FlashDevice  {
   unsigned short     Vers;    // Version Number and Architecture
   char       DevName[128];    // Device Name and Description
   unsigned short  DevType;    // Device Type: ONCHIP, EXT8BIT, EXT16BIT, ...
   unsigned long    DevAdr;    // Default Device Start Address
   unsigned long     szDev;    // Total Size of Device
   unsigned long    szPage;    // Programming Page Size
   unsigned long       Res;    // Reserved for future Extension
   unsigned char  valEmpty;    // Content of Erased Memory

   unsigned long    toProg;    // Time Out of Program Page Function
   unsigned long   toErase;    // Time Out of Erase Sector Function

   struct FlashSectors sectors[SECTOR_NUM];
};

#define FLASH_DRV_VERS (0x0100+VERS)   // Driver Version, do not modify!

// Flash Programming Functions (Called by FlashOS)
extern          int  Init        (unsigned long adr,   // Initialize Flash
                                  unsigned long clk,
                                  unsigned long fnc);
extern          int  UnInit      (unsigned long fnc);  // De-initialize Flash
extern          int  BlankCheck  (unsigned long adr,   // Blank Check
                                  unsigned long sz,
                                  unsigned char pat);
extern          int  EraseChip   (void);               // Erase complete Device
extern          int  EraseSector (unsigned long adr);  // Erase Sector Function
extern          int  ProgramPage (unsigned long adr,   // Program Page Function
                                  unsigned long sz,
                                  unsigned char *buf);
extern unsigned long Verify      (unsigned long adr,   // Verify Function
                                  unsigned long sz,
                                  unsigned char *buf);