mn10300_asb2303_flash.c

来自「eCos操作系统源码」· C语言 代码 · 共 89 行

//==========================================================================
//
//      mn10300_asb2303_flash.c
//
//      Flash programming for Matsushita ASB2303
//
//==========================================================================
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// -------------------------------------------
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//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    msalter
// Contributors: msalter
// Date:         2002-11-08
// Purpose:      
// Description:  
//              
//####DESCRIPTIONEND####
//
//==========================================================================
#include <pkgconf/devs_flash_mn10300_asb2303.h>

//--------------------------------------------------------------------------
// Device properties

#if defined(CYGHWR_DEVS_FLASH_MN10300_ASB2303_BANK_SysFlash)
// We use a four chip parallel AM29DL324BE module plugged into the System Flash socket
// on the ASB2303 board.
#define CYGNUM_FLASH_INTERLEAVE	(4)
#define CYGNUM_FLASH_SERIES	(1)
#define CYGNUM_FLASH_WIDTH	(8)
#define CYGNUM_FLASH_16AS8      (1)
#define CYGNUM_FLASH_BASE 	(0x84000000u)	/* cached flash chip address */

#elif defined(CYGHWR_DEVS_FLASH_MN10300_ASB2303_BANK_BootPROM)
// We have a single AM29LV800TA soldered onto the board as the boot PROM
#define CYGNUM_FLASH_INTERLEAVE	(1)
#define CYGNUM_FLASH_SERIES	(1)
#define CYGNUM_FLASH_WIDTH	(16)
#define CYGNUM_FLASH_BASE 	(0x80000000u)	/* cached flash chip address */

#else
#error unknown flash bank selected
#endif

//--------------------------------------------------------------------------
// Platform specific extras

// Offset of uncached shadow region
#define FLASH_P2V( _a_ ) ((volatile flash_data_t *)((CYG_ADDRWORD)(_a_)+0x20000000))

//--------------------------------------------------------------------------
// Now include the driver code.
#include "cyg/io/flash_am29xxxxx.inl"

// ------------------------------------------------------------------------
// EOF mn10300_asb2303_flash.c