1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "flash.h"
#include "common.h"
#include <target/image.h>
#include <helper/time_support.h>
struct flash_bank *flash_banks;
struct flash_bank *get_flash_bank_by_num_noprobe(int num)
{
struct flash_bank *p;
int i = 0;
for (p = flash_banks; p; p = p->next)
{
if (i++ == num)
{
return p;
}
}
LOG_ERROR("flash bank %d does not exist", num);
return NULL;
}
int flash_get_bank_count(void)
{
struct flash_bank *p;
int i = 0;
for (p = flash_banks; p; p = p->next)
{
i++;
}
return i;
}
struct flash_bank *get_flash_bank_by_name(const char *name)
{
unsigned requested = get_flash_name_index(name);
unsigned found = 0;
struct flash_bank *bank;
for (bank = flash_banks; NULL != bank; bank = bank->next)
{
if (strcmp(bank->name, name) == 0)
return bank;
if (!flash_driver_name_matches(bank->driver->name, name))
continue;
if (++found < requested)
continue;
return bank;
}
return NULL;
}
struct flash_bank *get_flash_bank_by_num(int num)
{
struct flash_bank *p = get_flash_bank_by_num_noprobe(num);
int retval;
if (p == NULL)
return NULL;
retval = p->driver->auto_probe(p);
if (retval != ERROR_OK)
{
LOG_ERROR("auto_probe failed %d\n", retval);
return NULL;
}
return p;
}
/* lookup flash bank by address */
struct flash_bank *get_flash_bank_by_addr(struct target *target, uint32_t addr)
{
struct flash_bank *c;
/* cycle through bank list */
for (c = flash_banks; c; c = c->next)
{
int retval;
retval = c->driver->auto_probe(c);
if (retval != ERROR_OK)
{
LOG_ERROR("auto_probe failed %d\n", retval);
return NULL;
}
/* check whether address belongs to this flash bank */
if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
return c;
}
LOG_ERROR("No flash at address 0x%08" PRIx32 "\n", addr);
return NULL;
}
int default_flash_mem_blank_check(struct flash_bank *bank)
{
struct target *target = bank->target;
const int buffer_size = 1024;
int i;
uint32_t nBytes;
int retval = ERROR_OK;
if (bank->target->state != TARGET_HALTED)
{
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
uint8_t *buffer = malloc(buffer_size);
for (i = 0; i < bank->num_sectors; i++)
{
uint32_t j;
bank->sectors[i].is_erased = 1;
for (j = 0; j < bank->sectors[i].size; j += buffer_size)
{
uint32_t chunk;
chunk = buffer_size;
if (chunk > (j - bank->sectors[i].size))
{
chunk = (j - bank->sectors[i].size);
}
retval = target_read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
if (retval != ERROR_OK)
{
goto done;
}
for (nBytes = 0; nBytes < chunk; nBytes++)
{
if (buffer[nBytes] != 0xFF)
{
bank->sectors[i].is_erased = 0;
break;
}
}
}
}
done:
free(buffer);
return retval;
}
int default_flash_blank_check(struct flash_bank *bank)
{
struct target *target = bank->target;
int i;
int retval;
int fast_check = 0;
uint32_t blank;
if (bank->target->state != TARGET_HALTED)
{
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
for (i = 0; i < bank->num_sectors; i++)
{
uint32_t address = bank->base + bank->sectors[i].offset;
uint32_t size = bank->sectors[i].size;
if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
{
fast_check = 0;
break;
}
if (blank == 0xFF)
bank->sectors[i].is_erased = 1;
else
bank->sectors[i].is_erased = 0;
fast_check = 1;
}
if (!fast_check)
{
LOG_USER("Running slow fallback erase check - add working memory");
return default_flash_mem_blank_check(bank);
}
return ERROR_OK;
}
|
