mvflash.c

Mavell AP32 无线模块驱动。VxWorks BSP BootRom源代码

/*******************************************************************************
*                   Copyright 2002, GALILEO TECHNOLOGY, LTD.                   *
* THIS CODE CONTAINS CONFIDENTIAL INFORMATION OF MARVELL.                      *
* NO RIGHTS ARE GRANTED HEREIN UNDER ANY PATENT, MASK WORK RIGHT OR COPYRIGHT  *
* OF MARVELL OR ANY THIRD PARTY. MARVELL RESERVES THE RIGHT AT ITS SOLE        *
* DISCRETION TO REQUEST THAT THIS CODE BE IMMEDIATELY RETURNED TO MARVELL.     *
* THIS CODE IS PROVIDED "AS IS". MARVELL MAKES NO WARRANTIES, EXPRESSED,       *
* IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, COMPLETENESS OR PERFORMANCE.   *
*                                                                              *
* MARVELL COMPRISES MARVELL TECHNOLOGY GROUP LTD. (MTGL) AND ITS SUBSIDIARIES, *
* MARVELL INTERNATIONAL LTD. (MIL), MARVELL TECHNOLOGY, INC. (MTI), MARVELL    *
* SEMICONDUCTOR, INC. (MSI), MARVELL ASIA PTE LTD. (MAPL), MARVELL JAPAN K.K.  *
* (MJKK), GALILEO TECHNOLOGY LTD. (GTL) AND GALILEO TECHNOLOGY, INC. (GTI).    *
********************************************************************************
* mvFlash.c - FLASH memory functions and definitions for SV use
*
* DESCRIPTION:                                                               
*       This mvFlash driver gives the user a convenient interface to the FLASH  
*       memory located on the user`s board, it supports various layout
*       configurations such as:
*         1. One pure 8 bit device (Such as AMD`s AM29LV040B).
*         2. 1,2,4 or 8 devices 16 bit wide configured to operate in 8 bit mode.
*         3. 1,2 or 4 devices each 16 bit wide.
*       Before using the driver you must call the initialization function at
*       least once or when ever you are changing the FLASH base address.
*       The list bellow contains the supported FLASH memory devices, new
*       devices can be added easily in the future.
*
* DEPENDENCIES:
*       None.
*
*******************************************************************************/


/*includes*/
#include "armboot.h"
#include "mvFlash.h"

/* locals */

/******************************************************************************
* mvFlashParametrs[] , mvFlashTypes[]  
*
*       Those two tables contain the supported mvFlash devices information
*       needed by the driver: 
*       The first table "mvFlashParametrs" starts with 10 shared fields 
*       (currently 6 are reserved):
*       index 0 => Pointer to an entry in the second table list
*       index 1 => baseAddress - Flash memory device base address.
*       index 2 => width - 1, 2, 4 or 8 Bytes. 
*       index 3 => mode - PURE8, X8 or X16 mvFlash configuration
*                 (for X16 devices only)
*       The second table (mvFlashTypes) contains: 
*       Entry`s structure:
*       Manufacture ID,Device ID,number of sectors,list of sector`s sizes
*       (in Kbytes starting with sector number 0).
*       The end of the list is pointed with a zero.
******************************************************************************/
static unsigned int mvFlashParametrs[10]; /* 0  Entry pointer */
                                   /* 1  Base address  */
                                   /* 2  Width         */
                                   /* 3  Mode          */            
                                   /* 4,5,6,7,8,9, spare entries. */
static unsigned int mvFlashTypes[] = {

    /* 0 */          AMD_FLASH,AM29F400BB,11,16,8,8,32,64,64,64,64,64,64,64,
    /* 1 */          AMD_FLASH,AM29F400BT,11,64,64,64,64,64,64,64,32,8,8,16,
    /* 2 */          ST_FLASH,M29W040    ,8,64,64,64,64,64,64,64,64,
    /* 3 */          AMD_FLASH,AM29LV040B,8,64,64,64,64,64,64,64,64,
    /* 4 */          AMD_FLASH,AM29LV800BT,19,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,32,8,8,16,
    /* 5 */          INTEL_FLASH,I28F320J3A,32,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,
    /* 6 */          INTEL_FLASH,I28F640J3A,64,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,
    /* 7 */          INTEL_FLASH,I28F128J3A,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
                                     128,128,128,128,128,128,128,128,128,128,
    /* 8 */          AMD_FLASH,AM29LV400BB,11,16,8,8,32,64,64,64,64,64,64,64,
    /* 9 */          AMD_FLASH,AM29LV400BT,11,64,64,64,64,64,64,64,32,8,8,16,
   /* 10 */          INTEL_FLASH,I28F320B3_T,71,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,8,8,8,8,8,8,8,8,
   /* 11 */          INTEL_FLASH,I28F320B3_B,71,8,8,8,8,8,8,8,8,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
   /* 12 */          INTEL_FLASH,I28F160B3_B,39,8,8,8,8,8,8,8,8,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,
   /* 13 */          INTEL_FLASH,I28F160B3_T,39,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,64,64,64,64,64,64,64,64,
                                             64,64,8,8,8,8,8,8,8,8,
   /* 14 */          AMD_FLASH,AM29LV160DT,35,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,32,8,8,16,
   /* 15 */          AMD_FLASH,AM29LV160DB,35,16,8,8,32,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
   /* 16 */          MXIC_FLASH,MX29LV160BT,35,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,32,8,8,16,
   /* 17 */          MXIC_FLASH,MX29LV160AB,35,16,8,8,32,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,64,64,64,64,64,64,64,
   /* 18 */          SST_FLASH,SST39VF800A,19,64,64,64,64,64,64,64,64,64,64,
                                           64,64,64,64,64,32,8,8,16,
                     0 /* End of list indicator */
                    };

/* Local functions */

static unsigned int mvFlashGetSize(void);
static unsigned int mvFlashGetSectorSize(unsigned int);

/*******************************************************************************
* mvFlashInit - Initializes the FLASH memory driver`s parameters.
*
* DESCRIPTION:
*       This function auto detects flash memory which may be present in
*       the system according to the flashTypes table defined in 
*       gtFlash.c and initializes the global internal data structures 
*       with the flash's base address, width, pointer to flash in the
*       flashTypes table and flash mode (PURE8 , X8 , X16) .If the flash
*       device was not found in the flashTypes table by this function , 
*       the return value will be 0, otherwise the return value will be 
*       the flash's size that was found. this function must be called 
*       at least once before using the flash memory. If the flash's base 
*       address was changed, this function must be called again.
*
* INPUTS:     
*        flashBaseAddress - The physical base address for the flash 
*                          memory device. For example, if the Flash 
*                          Memory is connected to chip select 0 on the 
*                          device interface of the MV device the value
*                          for the base address will be 0x1C00:0000.
*       flashWidth       - The physical width of the flash memory
*                          as connected to the MV's device interface 
*                          (1,2,4 or 8 bytes).
*       flashMode        - Two forms of flash memory are supported by this 
*                          driver. Pure 8 bit devices (PURE8), such as boot 
*                          devices, and 16 bit devices which can be configured 
*                          to operate either as 8 bit devices (X8) or as 16 bit
*                          devices (X16). 
*
* OUTPUT:
*       None.
*
* RETURN:
*       The flash's total size of a successful detection , 0 otherwise .
*
*******************************************************************************/
unsigned int mvFlashInit(unsigned int flashBaseAddress,
                         unsigned int flashWidth, FLASH_DEV_MODE flashMode)
{
    unsigned short mfrId=0;
    unsigned short devId = 0xffff;
    unsigned int   FirstAddr, SecondAddr, ThirdAddr;
    unsigned int   pArray=0;
    unsigned int   counter;
    unsigned int   flashSize=0;
    
    /* update the list with relevant parametrs */
    mvFlashParametrs[0] = 0; /* Default initialization */
    mvFlashParametrs[1] = flashBaseAddress;
    mvFlashParametrs[2] = flashWidth;
    mvFlashParametrs[3] = flashMode;
    /* Get the FLASH`s ID */
    switch(FLASH_WIDTH)
    {
        case 1:
            /* AMD or ST or MXIC ?? **/
            if( flashMode == PURE8 ) /* Boot Flash*/
            {
                FirstAddr = 0x5555;
                SecondAddr= 0x2aaa;
                ThirdAddr = 0x5555;
            }
            else /* X16 device configured to 8bit Mode */
            {
                FirstAddr = 0xaaaa;
                SecondAddr= 0x5555;
                ThirdAddr = 0xaaaa;
            } 
            mvFlashReset();
            MV_WRITE_CHAR(FLASH_BASE_ADDR + FirstAddr,0xAA);
            MV_WRITE_CHAR(FLASH_BASE_ADDR + SecondAddr,0x55);
            MV_WRITE_CHAR(FLASH_BASE_ADDR + ThirdAddr,0x90);
            MV_READ_CHAR(FLASH_BASE_ADDR + 0x0,&mfrId);
            if (mfrId == AMD_FLASH || mfrId == ST_FLASH || mfrId == MXIC_FLASH) 
            {
                mvFlashReset();  
                MV_WRITE_CHAR(FLASH_BASE_ADDR + FirstAddr,0xAA);
                MV_WRITE_CHAR(FLASH_BASE_ADDR + SecondAddr,0x55);
                MV_WRITE_CHAR(FLASH_BASE_ADDR + ThirdAddr,0x90);
                MV_READ_CHAR(FLASH_BASE_ADDR + 0x1,&devId);
                break;
            }
            /* Micron or Intel ?? **/
            MV_WRITE_CHAR(FLASH_BASE_ADDR,0xff); /* Read Array */
            /* Flash reset for Intel/Micron */
            MV_WRITE_CHAR(FLASH_BASE_ADDR,0x90); /* IDENTIFY Device */   
            MV_READ_CHAR(FLASH_BASE_ADDR + 0x0,&mfrId); 
                                                /*Address for ManufactureID*/
            if(mfrId == INTEL_FLASH || mfrId == MICRON_FLASH)
            {
                MV_WRITE_CHAR(FLASH_BASE_ADDR,0xff); /* Read Array */
                /*Flash reset for Intel/Micron*/
                MV_WRITE_CHAR(FLASH_BASE_ADDR,0x90); /* IDENTIFY Device */
                MV_READ_CHAR(FLASH_BASE_ADDR + 0x2,&devId); 
                                                /*Address for DeviceID*/
            }
            break; 
        case 2:
        case 4:
        case 8:
            /* AMD or ST or MXIC ??? */
            mvFlashReset();
            MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x5555 * FLASH_WIDTH,0xaa);
            MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x2aaa * FLASH_WIDTH,0x55);
            MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x5555 * FLASH_WIDTH,0x90);
            MV_READ_SHORT(FLASH_BASE_ADDR,&mfrId);
            mvFlashReset();
            /* Read the device ID */
            if (mfrId == AMD_FLASH || mfrId == SST_FLASH || mfrId == ST_FLASH || mfrId == MXIC_FLASH) 
            {
                MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x5555 * FLASH_WIDTH,0xaa);
                MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x2aaa * FLASH_WIDTH,0x55);
                MV_WRITE_SHORT(FLASH_BASE_ADDR + 0x5555 * FLASH_WIDTH,0x90);
                MV_READ_SHORT(FLASH_BASE_ADDR +  0x1 * FLASH_WIDTH,&devId);
                break;
            }
            /* Micron or Intel ?? **/
            mvFlashReset();
            MV_WRITE_WORD(FLASH_BASE_ADDR,0x00ff00ff); 
            MV_WRITE_WORD(FLASH_BASE_ADDR,0x00900090);
            if( (FLASH_WIDTH == 4) || (FLASH_WIDTH == 8) ) /* 32 or 64 bit */
            {
                MV_READ_SHORT(FLASH_BASE_ADDR,&mfrId);
            }
            else  /* FLASH_WIDTH = 2 */
            {
                MV_READ_SHORT(FLASH_BASE_ADDR,&mfrId);
            }
            if( (mfrId == INTEL_FLASH) || (mfrId == MICRON_FLASH) )
            {
                /* Flash reset for Intel/Micron */
                mvFlashReset();
                MV_WRITE_WORD(FLASH_BASE_ADDR,0x00ff00ff); 
                MV_WRITE_WORD(FLASH_BASE_ADDR,0x00900090);
                if( (FLASH_WIDTH == 2) ||(FLASH_WIDTH == 4) ||