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[openocd.git] / src / flash / nor / dsp5680xx_flash.c
1 /***************************************************************************
2 * Copyright (C) 2011 by Rodrigo L. Rosa *
3 * rodrigorosa.LG@gmail.com *
4 * *
5 * Based on a file written by: *
6 * Kevin McGuire *
7 * Marcel Wijlaars *
8 * Michael Ashton *
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
19 * *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
24 ***************************************************************************/
25
26 #ifdef HAVE_CONFIG_H
27 #include "config.h"
28 #endif
29
30 #ifndef DSP5680XX_FLASH_H
31 #define DSP5680XX_FLASH_H
32
33 #include "imp.h"
34 #include <helper/binarybuffer.h>
35 #include <helper/time_support.h>
36 #include <target/algorithm.h>
37 #include <target/dsp5680xx.h>
38
39 struct dsp5680xx_flash_bank {
40 struct working_area *write_algorithm;
41 };
42
43 static int dsp5680xx_build_sector_list(struct flash_bank *bank){
44 uint32_t offset = HFM_FLASH_BASE_ADDR;
45 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
46 int i;
47 for (i = 0; i < bank->num_sectors; ++i){
48 bank->sectors[i].offset = i*HFM_SECTOR_SIZE;
49 bank->sectors[i].size = HFM_SECTOR_SIZE;
50 offset += bank->sectors[i].size;
51 bank->sectors[i].is_erased = -1;
52 bank->sectors[i].is_protected = -1;
53 }
54 LOG_USER("%s not tested yet.",__FUNCTION__);
55 return ERROR_OK;
56
57 }
58
59 // flash bank dsp5680xx 0 0 0 0 <target#>
60 FLASH_BANK_COMMAND_HANDLER(dsp5680xx_flash_bank_command){
61 struct dsp5680xx_flash_bank *nbank;
62
63 nbank = malloc(sizeof(struct dsp5680xx_flash_bank));
64
65 bank->base = HFM_FLASH_BASE_ADDR;
66 bank->size = HFM_SIZE_BYTES; // top 4k not accessible
67 bank->driver_priv = nbank;
68 bank->num_sectors = HFM_SECTOR_COUNT;
69 dsp5680xx_build_sector_list(bank);
70
71 return ERROR_OK;
72 }
73
74 static int dsp5680xx_flash_protect_check(struct flash_bank *bank){
75 int retval = ERROR_OK;
76 uint16_t protected = 0;
77 retval = dsp5680xx_f_protect_check(bank->target,&protected);
78 if(retval != ERROR_OK){
79 for(int i = 0;i<HFM_SECTOR_COUNT;i++)
80 bank->sectors[i].is_protected = -1;
81 return ERROR_OK;
82 }
83 for(int i = 0;i<HFM_SECTOR_COUNT/2;i++){
84 if(protected & 1){
85 bank->sectors[2*i].is_protected = 1;
86 bank->sectors[2*i+1].is_protected = 1;
87 }else{
88 bank->sectors[2*i].is_protected = 0;
89 bank->sectors[2*i+1].is_protected = 0;
90 }
91 protected = (protected >> 1);
92 }
93 return retval;
94 }
95
96 static int dsp5680xx_flash_protect(struct flash_bank *bank, int set, int first, int last){
97 // This applies security to flash module after next reset, it does not actually apply protection (protection refers to undesired access from the core)
98 int retval;
99 if(set)
100 retval = dsp5680xx_f_lock(bank->target);
101 else
102 retval = dsp5680xx_f_unlock(bank->target);
103 return retval;
104 }
105
106 /*
107 static int dsp5680xx_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count){
108 LOG_USER("%s not implemented",__FUNCTION__);
109 return ERROR_OK;
110 }
111
112 static int dsp5680xx_write_single(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count){
113 LOG_USER("%s not implemented",__FUNCTION__);
114 return ERROR_OK;
115 }
116 */
117
118 //-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
119 //-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
120 // Flash stuff test
121 //-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
122 //-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
123
124 static int dsp5680xx_flash_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count){
125 int retval;
126 if((offset + count/2)>bank->size){
127 LOG_ERROR("%s: Flash bank cannot fit data.",__FUNCTION__);
128 return ERROR_FAIL;
129 }
130 if(offset%2){
131 LOG_ERROR("%s: Writing to odd addresses not supported. This chip uses word addressing, Openocd only supports byte addressing. The workaround results in disabling writing to odd byte addresses.",__FUNCTION__);
132 return ERROR_FAIL;
133 }
134 retval = dsp5680xx_f_wr(bank->target, buffer, bank->base + offset/2, count);
135 uint32_t addr_word;
136 for(addr_word = bank->base + offset/2;addr_word<count/2;addr_word+=(HFM_SECTOR_SIZE/2)){
137 if(retval == ERROR_OK)
138 bank->sectors[addr_word/(HFM_SECTOR_SIZE/2)].is_erased = 0;
139 else
140 bank->sectors[addr_word/(HFM_SECTOR_SIZE/2)].is_erased = -1;
141 }
142 return retval;
143 }
144
145 static int dsp5680xx_probe(struct flash_bank *bank){
146 LOG_DEBUG("%s not implemented",__FUNCTION__);
147 return ERROR_OK;
148 }
149
150 static int dsp5680xx_flash_info(struct flash_bank *bank, char *buf, int buf_size){
151 snprintf(buf, buf_size, "\ndsp5680xx flash driver info:\n - Currently only full erase/lock/unlock are implemented. \n - Call with bank==0 and sector 0 to 0.\n - Protect requires arp_init-reset to complete. \n - Before removing protection the master tap must be selected, and arp_init-reset is required to complete unlocking.");
152 return ERROR_OK;
153 }
154 /*
155 static int dsp5680xx_set_write_enable(struct target *target, int enable){
156 LOG_USER("%s not implemented",__FUNCTION__);
157 return ERROR_OK;
158 }
159
160
161 static int dsp5680xx_check_flash_completion(struct target* target, unsigned int timeout_ms){
162 LOG_USER("%s not implemented",__FUNCTION__);
163 return ERROR_OK;
164 }
165 */
166
167 static int dsp5680xx_flash_erase(struct flash_bank * bank, int first, int last){
168 int retval;
169 retval = dsp5680xx_f_erase(bank->target, (uint32_t) first, (uint32_t) last);
170 if(retval == ERROR_OK)
171 for(int i = first;i<=last;i++)
172 bank->sectors[i].is_erased = 1;
173 else
174 // If an error occurred unknown status is set even though some sector could have been correctly erased.
175 for(int i = first;i<=last;i++)
176 bank->sectors[i].is_erased = -1;
177 return retval;
178 }
179
180 static int dsp5680xx_flash_erase_check(struct flash_bank * bank){
181 int retval = ERROR_OK;
182 uint8_t erased = 0;
183 uint32_t i;
184 for(i=0;i<HFM_SECTOR_COUNT;i++){
185 if(bank->sectors[i].is_erased == -1){
186 retval = dsp5680xx_f_erase_check(bank->target,&erased,i);
187 if (retval != ERROR_OK){
188 bank->sectors[i].is_erased = -1;
189 }else{
190 if(erased)
191 bank->sectors[i].is_erased = 1;
192 else
193 bank->sectors[i].is_erased = 0;
194 }
195 }
196 }
197 return retval;
198 }
199
200 struct flash_driver dsp5680xx_flash = {
201 .name = "dsp5680xx_flash",
202 .flash_bank_command = dsp5680xx_flash_bank_command,
203 .erase = dsp5680xx_flash_erase,
204 .protect = dsp5680xx_flash_protect,
205 .write = dsp5680xx_flash_write,
206 //.read = default_flash_read,
207 .probe = dsp5680xx_probe,
208 .auto_probe = dsp5680xx_probe,
209 .erase_check = dsp5680xx_flash_erase_check,
210 .protect_check = dsp5680xx_flash_protect_check,
211 .info = dsp5680xx_flash_info
212 };
213 #endif // dsp5680xx_flash.h
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