1 /***************************************************************************
2 * Copyright (C) 2009 by Simon Qian *
3 * SimonQian@SimonQian.com *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
26 #include <target/avrt.h>
29 /* AVR_JTAG_Instructions */
30 #define AVR_JTAG_INS_LEN 4
31 // Public Instructions:
32 #define AVR_JTAG_INS_EXTEST 0x00
33 #define AVR_JTAG_INS_IDCODE 0x01
34 #define AVR_JTAG_INS_SAMPLE_PRELOAD 0x02
35 #define AVR_JTAG_INS_BYPASS 0x0F
36 // AVR Specified Public Instructions:
37 #define AVR_JTAG_INS_AVR_RESET 0x0C
38 #define AVR_JTAG_INS_PROG_ENABLE 0x04
39 #define AVR_JTAG_INS_PROG_COMMANDS 0x05
40 #define AVR_JTAG_INS_PROG_PAGELOAD 0x06
41 #define AVR_JTAG_INS_PROG_PAGEREAD 0x07
44 #define AVR_JTAG_REG_Bypass_Len 1
45 #define AVR_JTAG_REG_DeviceID_Len 32
47 #define AVR_JTAG_REG_Reset_Len 1
48 #define AVR_JTAG_REG_JTAGID_Len 32
49 #define AVR_JTAG_REG_ProgrammingEnable_Len 16
50 #define AVR_JTAG_REG_ProgrammingCommand_Len 15
51 #define AVR_JTAG_REG_FlashDataByte_Len 16
53 static struct avrf_type avft_chips_info
[] =
55 /* name, chip_id, flash_page_size, flash_page_num,
56 * eeprom_page_size, eeprom_page_num
58 {"atmega128", 0x9702, 256, 512, 8, 512},
59 {"at90can128", 0x9781, 256, 512, 8, 512},
62 /* avr program functions */
63 static int avr_jtag_reset(struct avr_common
*avr
, uint32_t reset
)
65 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_AVR_RESET
);
66 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, reset
,AVR_JTAG_REG_Reset_Len
);
71 static int avr_jtag_read_jtagid(struct avr_common
*avr
, uint32_t *id
)
73 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_IDCODE
);
74 avr_jtag_senddat(avr
->jtag_info
.tap
, id
, 0, AVR_JTAG_REG_JTAGID_Len
);
79 static int avr_jtagprg_enterprogmode(struct avr_common
*avr
)
81 avr_jtag_reset(avr
, 1);
83 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_ENABLE
);
84 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0xA370, AVR_JTAG_REG_ProgrammingEnable_Len
);
89 static int avr_jtagprg_leaveprogmode(struct avr_common
*avr
)
91 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_COMMANDS
);
92 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x2300, AVR_JTAG_REG_ProgrammingCommand_Len
);
93 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3300, AVR_JTAG_REG_ProgrammingCommand_Len
);
95 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_ENABLE
);
96 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0, AVR_JTAG_REG_ProgrammingEnable_Len
);
98 avr_jtag_reset(avr
, 0);
103 static int avr_jtagprg_chiperase(struct avr_common
*avr
)
107 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_COMMANDS
);
108 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x2380, AVR_JTAG_REG_ProgrammingCommand_Len
);
109 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3180, AVR_JTAG_REG_ProgrammingCommand_Len
);
110 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len
);
111 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len
);
115 avr_jtag_senddat(avr
->jtag_info
.tap
, &poll_value
, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len
);
116 if (ERROR_OK
!= mcu_execute_queue())
120 LOG_DEBUG("poll_value = 0x%04" PRIx32
"", poll_value
);
121 } while (!(poll_value
& 0x0200));
126 static int avr_jtagprg_writeflashpage(struct avr_common
*avr
, uint8_t *page_buf
, uint32_t buf_size
, uint32_t addr
, uint32_t page_size
)
128 uint32_t i
, poll_value
;
130 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_COMMANDS
);
131 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x2310, AVR_JTAG_REG_ProgrammingCommand_Len
);
133 // load addr high byte
134 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x0700 | ((addr
>> 9) & 0xFF), AVR_JTAG_REG_ProgrammingCommand_Len
);
136 // load addr low byte
137 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x0300 | ((addr
>> 1) & 0xFF), AVR_JTAG_REG_ProgrammingCommand_Len
);
139 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_PAGELOAD
);
141 for (i
= 0; i
< page_size
; i
++)
145 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, page_buf
[i
], 8);
149 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0xFF, 8);
153 avr_jtag_sendinstr(avr
->jtag_info
.tap
, NULL
, AVR_JTAG_INS_PROG_COMMANDS
);
155 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len
);
156 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3500, AVR_JTAG_REG_ProgrammingCommand_Len
);
157 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len
);
158 avr_jtag_senddat(avr
->jtag_info
.tap
, NULL
, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len
);
162 avr_jtag_senddat(avr
->jtag_info
.tap
, &poll_value
, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len
);
163 if (ERROR_OK
!= mcu_execute_queue())
167 LOG_DEBUG("poll_value = 0x%04" PRIx32
"", poll_value
);
168 } while (!(poll_value
& 0x0200));
173 FLASH_BANK_COMMAND_HANDLER(avrf_flash_bank_command
)
175 struct avrf_flash_bank
*avrf_info
;
179 LOG_WARNING("incomplete flash_bank avr configuration");
180 return ERROR_FLASH_BANK_INVALID
;
183 avrf_info
= malloc(sizeof(struct avrf_flash_bank
));
184 bank
->driver_priv
= avrf_info
;
186 avrf_info
->probed
= 0;
191 static int avrf_erase(struct flash_bank
*bank
, int first
, int last
)
193 struct target
*target
= bank
->target
;
194 struct avr_common
*avr
= target
->arch_info
;
197 LOG_DEBUG("%s", __FUNCTION__
);
199 if (target
->state
!= TARGET_HALTED
)
201 LOG_ERROR("Target not halted");
202 return ERROR_TARGET_NOT_HALTED
;
205 status
= avr_jtagprg_enterprogmode(avr
);
206 if (status
!= ERROR_OK
)
209 status
= avr_jtagprg_chiperase(avr
);
210 if (status
!= ERROR_OK
)
213 return avr_jtagprg_leaveprogmode(avr
);
216 static int avrf_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
218 LOG_INFO("%s", __FUNCTION__
);
222 static int avrf_write(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
224 struct target
*target
= bank
->target
;
225 struct avr_common
*avr
= target
->arch_info
;
226 uint32_t cur_size
, cur_buffer_size
, page_size
;
228 if (bank
->target
->state
!= TARGET_HALTED
)
230 LOG_ERROR("Target not halted");
231 return ERROR_TARGET_NOT_HALTED
;
234 page_size
= bank
->sectors
[0].size
;
235 if ((offset
% page_size
) != 0)
237 LOG_WARNING("offset 0x%" PRIx32
" breaks required %" PRIu32
"-byte alignment", offset
, page_size
);
238 return ERROR_FLASH_DST_BREAKS_ALIGNMENT
;
241 LOG_DEBUG("offset is 0x%08" PRIx32
"", offset
);
242 LOG_DEBUG("count is %" PRId32
"", count
);
244 if (ERROR_OK
!= avr_jtagprg_enterprogmode(avr
))
252 if (count
> page_size
)
254 cur_buffer_size
= page_size
;
258 cur_buffer_size
= count
;
260 avr_jtagprg_writeflashpage(avr
, buffer
+ cur_size
, cur_buffer_size
, offset
+ cur_size
, page_size
);
261 count
-= cur_buffer_size
;
262 cur_size
+= cur_buffer_size
;
267 return avr_jtagprg_leaveprogmode(avr
);
270 #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
271 #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
272 #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
273 static int avrf_probe(struct flash_bank
*bank
)
275 struct target
*target
= bank
->target
;
276 struct avrf_flash_bank
*avrf_info
= bank
->driver_priv
;
277 struct avr_common
*avr
= target
->arch_info
;
278 struct avrf_type
*avr_info
= NULL
;
282 if (bank
->target
->state
!= TARGET_HALTED
)
284 LOG_ERROR("Target not halted");
285 return ERROR_TARGET_NOT_HALTED
;
288 avrf_info
->probed
= 0;
290 avr_jtag_read_jtagid(avr
, &device_id
);
291 if (ERROR_OK
!= mcu_execute_queue())
296 LOG_INFO("device id = 0x%08" PRIx32
"", device_id
);
297 if (EXTRACT_MFG(device_id
) != 0x1F)
299 LOG_ERROR("0x%" PRIx32
" is invalid Manufacturer for avr, 0x%X is expected", EXTRACT_MFG(device_id
), 0x1F);
302 for (i
= 0; i
< (int)ARRAY_SIZE(avft_chips_info
); i
++)
304 if (avft_chips_info
[i
].chip_id
== EXTRACT_PART(device_id
))
306 avr_info
= &avft_chips_info
[i
];
307 LOG_INFO("target device is %s", avr_info
->name
);
312 if (avr_info
!= NULL
)
317 bank
->sectors
= NULL
;
321 bank
->base
= 0x00000000;
322 bank
->size
= (avr_info
->flash_page_size
* avr_info
->flash_page_num
);
323 bank
->num_sectors
= avr_info
->flash_page_num
;
324 bank
->sectors
= malloc(sizeof(struct flash_sector
) * avr_info
->flash_page_num
);
326 for (i
= 0; i
< avr_info
->flash_page_num
; i
++)
328 bank
->sectors
[i
].offset
= i
* avr_info
->flash_page_size
;
329 bank
->sectors
[i
].size
= avr_info
->flash_page_size
;
330 bank
->sectors
[i
].is_erased
= -1;
331 bank
->sectors
[i
].is_protected
= 1;
334 avrf_info
->probed
= 1;
339 // chip not supported
340 LOG_ERROR("0x%" PRIx32
" is not support for avr", EXTRACT_PART(device_id
));
342 avrf_info
->probed
= 1;
347 static int avrf_auto_probe(struct flash_bank
*bank
)
349 struct avrf_flash_bank
*avrf_info
= bank
->driver_priv
;
350 if (avrf_info
->probed
)
352 return avrf_probe(bank
);
355 static int avrf_protect_check(struct flash_bank
*bank
)
357 LOG_INFO("%s", __FUNCTION__
);
361 static int avrf_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
363 struct target
*target
= bank
->target
;
364 struct avr_common
*avr
= target
->arch_info
;
365 struct avrf_type
*avr_info
= NULL
;
369 if (bank
->target
->state
!= TARGET_HALTED
)
371 LOG_ERROR("Target not halted");
372 return ERROR_TARGET_NOT_HALTED
;
375 avr_jtag_read_jtagid(avr
, &device_id
);
376 if (ERROR_OK
!= mcu_execute_queue())
381 LOG_INFO("device id = 0x%08" PRIx32
"", device_id
);
382 if (EXTRACT_MFG(device_id
) != 0x1F)
384 LOG_ERROR("0x%" PRIx32
" is invalid Manufacturer for avr, 0x%X is expected", EXTRACT_MFG(device_id
), 0x1F);
387 for (i
= 0; i
< (int)ARRAY_SIZE(avft_chips_info
); i
++)
389 if (avft_chips_info
[i
].chip_id
== EXTRACT_PART(device_id
))
391 avr_info
= &avft_chips_info
[i
];
392 LOG_INFO("target device is %s", avr_info
->name
);
398 if (avr_info
!= NULL
)
401 snprintf(buf
, buf_size
, "%s - Rev: 0x%" PRIx32
"", avr_info
->name
, EXTRACT_VER(device_id
));
406 // chip not supported
407 snprintf(buf
, buf_size
, "Cannot identify target as a avr\n");
408 return ERROR_FLASH_OPERATION_FAILED
;
412 static int avrf_mass_erase(struct flash_bank
*bank
)
414 struct target
*target
= bank
->target
;
415 struct avr_common
*avr
= target
->arch_info
;
417 if (target
->state
!= TARGET_HALTED
)
419 LOG_ERROR("Target not halted");
420 return ERROR_TARGET_NOT_HALTED
;
423 if ((ERROR_OK
!= avr_jtagprg_enterprogmode(avr
))
424 || (ERROR_OK
!= avr_jtagprg_chiperase(avr
))
425 || (ERROR_OK
!= avr_jtagprg_leaveprogmode(avr
)))
433 COMMAND_HANDLER(avrf_handle_mass_erase_command
)
439 command_print(CMD_CTX
, "avr mass_erase <bank>");
443 struct flash_bank
*bank
;
444 int retval
= CALL_COMMAND_HANDLER(flash_command_get_bank
, 0, &bank
);
445 if (ERROR_OK
!= retval
)
448 if (avrf_mass_erase(bank
) == ERROR_OK
)
450 /* set all sectors as erased */
451 for (i
= 0; i
< bank
->num_sectors
; i
++)
453 bank
->sectors
[i
].is_erased
= 1;
456 command_print(CMD_CTX
, "avr mass erase complete");
460 command_print(CMD_CTX
, "avr mass erase failed");
463 LOG_DEBUG("%s", __FUNCTION__
);
467 static const struct command_registration avrf_exec_command_handlers
[] = {
469 .name
= "mass_erase",
470 .handler
= avrf_handle_mass_erase_command
,
471 .mode
= COMMAND_EXEC
,
472 .help
= "erase entire device",
474 COMMAND_REGISTRATION_DONE
476 static const struct command_registration avrf_command_handlers
[] = {
480 .help
= "AVR flash command group",
481 .chain
= avrf_exec_command_handlers
,
483 COMMAND_REGISTRATION_DONE
486 struct flash_driver avr_flash
= {
488 .commands
= avrf_command_handlers
,
489 .flash_bank_command
= avrf_flash_bank_command
,
491 .protect
= avrf_protect
,
493 .read
= default_flash_read
,
495 .auto_probe
= avrf_auto_probe
,
496 .erase_check
= default_flash_mem_blank_check
,
497 .protect_check
= avrf_protect_check
,
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