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 //==========================================================================
41 //#####DESCRIPTIONBEGIN####
44 // Contributors: gthomas, dmoseley
49 //####DESCRIPTIONEND####
51 //==========================================================================
53 #include <pkgconf/hal.h>
54 #include <cyg/hal/hal_arch.h>
56 #define _FLASH_PRIVATE_
57 #include <cyg/io/flash.h>
64 unsigned char data[96];
65 int num_regions, region_size;
67 flash_dev_query(&data);
69 if ((data[0] == FLASH_Intel_code) &&
70 (data[4] == FLASH_28F016SV_low) &&
71 (data[5] == FLASH_28F016SV_hi)) {
73 region_size = 0x20000;
74 flash_info.block_size = region_size;
75 flash_info.blocks = num_regions;
76 flash_info.start = (void *)0x08000000;
77 flash_info.end = (void *)(0x08000000+(num_regions*region_size));
80 (*flash_info.pf)("Can't identify FLASH, sorry\n");
81 diag_dump_buf(data, sizeof(data));
86 // Map a hardware status to a package error
88 flash_hwr_map_error(int err)
92 return FLASH_ERR_PROGRAM;
95 return FLASH_ERR_ERASE;
97 return FLASH_ERR_HWR; // FIXME
103 // See if a range of FLASH addresses overlaps currently running code
105 flash_code_overlaps(void *start, void *end)
107 extern char _stext[], _etext[];
109 return ((((unsigned long)&_stext >= (unsigned long)start) &&
110 ((unsigned long)&_stext < (unsigned long)end)) ||
111 (((unsigned long)&_etext >= (unsigned long)start) &&
112 ((unsigned long)&_etext < (unsigned long)end)));