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//==========================================================================
//
//      ixdp425_strataflash.c
//
//      Support for the Strata flash device on Intel IXDP425
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 2005, 2006 Free Software Foundation, Inc.                  
//
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// for more details.                                                        
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//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// this file does not by itself cause the resulting work to be covered by   
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// General Public License v2.                                               
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//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):   jlarmour based on original by bartv
// Date:        2006-01-17
//
//####DESCRIPTIONEND####
//=============================================================================
 
// There is a single Intel StrataFLASH device on the IXDP425, supported via the
// generic Strata flash package. By default this is the 28F128J3 which is a
// 16MByte device, arranged as 128*128K blocks with no boot blocks, 16-bits
// wide. There is a 32-byte program buffer and locking is supported.
//
// But CFI is used to determine Flash geometry as the part is fitted in a socket
// to allow replacement with other StrataFLASH parts.
 
#include <pkgconf/system.h>
#include <cyg/io/flash.h>
#include <cyg/io/flash_dev.h>
#include <cyg/io/strata_dev.h>
#include <cyg/hal/plf_io.h>
 
static const CYG_FLASH_FUNS(hal_ixdp425_flash_strata_funs,
                            &cyg_strata_init_cfi_16,
                            &cyg_flash_devfn_query_nop,
                            &cyg_strata_erase_16,
                            &cyg_strata_bufprogram_16,
                            (int (*)(struct cyg_flash_dev*, const cyg_flashaddr_t, void*, size_t))0,
                            &cyg_strata_lock_j3_16,
                            &cyg_strata_unlock_j3_16);
 
static cyg_strata_dev hal_ixdp425_flash_priv;
#ifdef notusingcfianymore
 = {
    .manufacturer_code  = 0x0089,
    .device_code        = 0x0018,
    .bufsize            = 16,       // 32 bytes -> 16 words
    .block_info = {
        { 0x00020000, 128 }
    }
};
#endif
 
// The Flash driver initially claims to use the cached mapping of the Flash
// device, but through CYGARC_UNCACHED_ADDRESS, will actually use the *uncached*
// mapping when it comes to driver operations. That way things like
// RedBoot's FIS directory still correctly use the cached flash addresses.
 
CYG_FLASH_DRIVER(hal_ixdp425_flash,
                 &hal_ixdp425_flash_strata_funs,
                 0,
                 IXDP_FLASH_BASE,
                 (IXDP_FLASH_BASE+IXDP_FLASH_SIZE-1),
                 1,
                 hal_ixdp425_flash_priv.block_info,
                 &hal_ixdp425_flash_priv
);
 
// EOF ixdp425_strataflash.c