1 //==========================================================================
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
15 // Software Foundation; either version 2 or (at your option) any later version.
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
23 // with eCos; if not, write to the Free Software Foundation, Inc.,
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
31 // in accordance with section (3) of the GNU General Public License.
33 // This exception does not invalidate any other reasons why a work based on
34 // this file might be covered by the GNU General Public License.
36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37 // at http://sources.redhat.com/ecos/ecos-license/
38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //===========================================================================
42 #include <cyg/io/flash.h>
43 #include <pkgconf/hal.h>
44 #include <cyg/hal/hal_arch.h>
48 #ifndef MXCFLASH_SELECT_MULTI
49 flash_erase_block(volatile unsigned long *block)
50 __attribute__ ((section (".2ram.flash_erase_block")));
52 norflash_erase_block(volatile unsigned long *block);
56 #ifndef MXCFLASH_SELECT_MULTI
57 flash_erase_block(volatile unsigned long *block)
59 norflash_erase_block(volatile unsigned long *block)
62 unsigned long stat = FLASH_ERR_OK;
63 unsigned long startAddr = (unsigned long) block;
64 int index, tempAddr=0;
66 if(startAddr < (FLASH_BASE+ (0x2000*CYGNUM_FLASH_INTERLEAVE)))
68 tempAddr = FLASH_BASE;
70 else if(startAddr >= (FLASH_BASE+(FLASH_SECTOR_NUM-1)*FLASH_SECTOR_SIZE))
72 tempAddr = FLASH_BASE+(FLASH_SECTOR_NUM-1)*FLASH_SECTOR_SIZE;
75 /* to deal with sector 0-7 or 262-269 */
78 for(index = 0; index < 8; index++)
80 FLASH_SECTOR_ERASE(tempAddr+index*FLASH_SMALL_SECTOR_SIZE, stat);
81 if(stat != FLASH_ERR_OK)
88 FLASH_SECTOR_ERASE(startAddr, stat);