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
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>
61 #define _si(p) ((p[0]<<8)|p[1])
66 unsigned short data[4];
67 int num_regions, region_size;
71 volatile int cache_test;
72 volatile int *cp = 0xE0000000;
73 // See if the data cache is working
75 (*flash_info.pf)("ROM cache:\n");
76 (*flash_info.pf)("cache test = %x\n", *cp);
77 HAL_DCACHE_INVALIDATE_ALL();
79 (*flash_info.pf)("cache test = %x\n", *cp);
81 (*flash_info.pf)("cache test = %x\n", *cp);
83 (*flash_info.pf)("cache test = %x\n", *cp);
85 // See if the data cache is working
87 (*flash_info.pf)("RAM cache:\n");
88 (*flash_info.pf)("cache test = %x\n", *cp);
90 (*flash_info.pf)("cache test = %x\n", *cp);
92 (*flash_info.pf)("cache test = %x\n", *cp);
94 (*flash_info.pf)("cache test = %x\n", *cp);
98 flash_dev_query(data);
100 dump_buf(data, sizeof(data));
105 volatile int cache_test;
106 volatile int *cp = 0xE0000000;
107 // See if the data cache is working
108 (*flash_info.pf)("cache test = %x\n", *cp);
110 (*flash_info.pf)("cache test = %x\n", *cp);
111 HAL_DCACHE_INVALIDATE_ALL();
112 HAL_DCACHE_DISABLE();
113 (*flash_info.pf)("cache test = %x\n", *cp);
115 (*flash_info.pf)("cache test = %x\n", *cp);
117 (*flash_info.pf)("cache test = %x\n", *cp);
121 if (data[0] != FLASH_Intel_code) {
122 (*flash_info.pf)("Not Intel = %x\n", data[0]);
123 return FLASH_ERR_HWR;
126 if (data[1] == (unsigned short)0x8897) {
128 region_size = 0x20000;
130 (*flash_info.pf)("Unknown device type: %x\n", data[1]);
131 return FLASH_ERR_HWR;
134 // Hard wired for now
135 flash_info.block_size = region_size;
136 flash_info.blocks = num_regions;
137 flash_info.start = (void *)0xE0000000;
138 flash_info.end = (void *)(0xE0000000+(num_regions*region_size));
142 // Map a hardware status to a package error
144 flash_hwr_map_error(int err)
146 if (err & 0x007E007E) {
147 (*flash_info.pf)("Err = %x\n", err);
148 if (err & 0x00100010) {
149 return FLASH_ERR_PROGRAM;
151 if (err & 0x00200020) {
152 return FLASH_ERR_ERASE;
154 return FLASH_ERR_HWR; // FIXME
160 // See if a range of FLASH addresses overlaps currently running code
162 flash_code_overlaps(void *start, void *end)
164 extern char _stext[], _etext[];
166 return ((((unsigned long)&_stext >= (unsigned long)start) &&
167 ((unsigned long)&_stext < (unsigned long)end)) ||
168 (((unsigned long)&_etext >= (unsigned long)start) &&
169 ((unsigned long)&_etext < (unsigned long)end)));