1 /***************************************************************************
2 * Copyright (C) 2007,2008 by Christopher Kilgour *
3 * techie |_at_| whiterocker |_dot_| 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 ***************************************************************************/
27 /* ----------------------------------------------------------------------
28 Internal Support, Helpers
29 ---------------------------------------------------------------------- */
31 const flash_sector_t TMS470R1A256_SECTORS
[] = {
32 {0x00000000, 0x00002000, -1, -1},
33 {0x00002000, 0x00002000, -1, -1},
34 {0x00004000, 0x00002000, -1, -1},
35 {0x00006000, 0x00002000, -1, -1},
36 {0x00008000, 0x00008000, -1, -1},
37 {0x00010000, 0x00008000, -1, -1},
38 {0x00018000, 0x00008000, -1, -1},
39 {0x00020000, 0x00008000, -1, -1},
40 {0x00028000, 0x00008000, -1, -1},
41 {0x00030000, 0x00008000, -1, -1},
42 {0x00038000, 0x00002000, -1, -1},
43 {0x0003A000, 0x00002000, -1, -1},
44 {0x0003C000, 0x00002000, -1, -1},
45 {0x0003E000, 0x00002000, -1, -1},
48 #define TMS470R1A256_NUM_SECTORS \
49 (sizeof(TMS470R1A256_SECTORS)/sizeof(TMS470R1A256_SECTORS[0]))
51 const flash_sector_t TMS470R1A288_BANK0_SECTORS
[] = {
52 {0x00000000, 0x00002000, -1, -1},
53 {0x00002000, 0x00002000, -1, -1},
54 {0x00004000, 0x00002000, -1, -1},
55 {0x00006000, 0x00002000, -1, -1},
58 #define TMS470R1A288_BANK0_NUM_SECTORS \
59 (sizeof(TMS470R1A288_BANK0_SECTORS)/sizeof(TMS470R1A288_BANK0_SECTORS[0]))
61 const flash_sector_t TMS470R1A288_BANK1_SECTORS
[] = {
62 {0x00040000, 0x00010000, -1, -1},
63 {0x00050000, 0x00010000, -1, -1},
64 {0x00060000, 0x00010000, -1, -1},
65 {0x00070000, 0x00010000, -1, -1},
68 #define TMS470R1A288_BANK1_NUM_SECTORS \
69 (sizeof(TMS470R1A288_BANK1_SECTORS)/sizeof(TMS470R1A288_BANK1_SECTORS[0]))
71 const flash_sector_t TMS470R1A384_BANK0_SECTORS
[] = {
72 {0x00000000, 0x00002000, -1, -1},
73 {0x00002000, 0x00002000, -1, -1},
74 {0x00004000, 0x00004000, -1, -1},
75 {0x00008000, 0x00004000, -1, -1},
76 {0x0000C000, 0x00004000, -1, -1},
77 {0x00010000, 0x00004000, -1, -1},
78 {0x00014000, 0x00004000, -1, -1},
79 {0x00018000, 0x00002000, -1, -1},
80 {0x0001C000, 0x00002000, -1, -1},
81 {0x0001E000, 0x00002000, -1, -1},
84 #define TMS470R1A384_BANK0_NUM_SECTORS \
85 (sizeof(TMS470R1A384_BANK0_SECTORS)/sizeof(TMS470R1A384_BANK0_SECTORS[0]))
87 const flash_sector_t TMS470R1A384_BANK1_SECTORS
[] = {
88 {0x00020000, 0x00008000, -1, -1},
89 {0x00028000, 0x00008000, -1, -1},
90 {0x00030000, 0x00008000, -1, -1},
91 {0x00038000, 0x00008000, -1, -1},
94 #define TMS470R1A384_BANK1_NUM_SECTORS \
95 (sizeof(TMS470R1A384_BANK1_SECTORS)/sizeof(TMS470R1A384_BANK1_SECTORS[0]))
97 const flash_sector_t TMS470R1A384_BANK2_SECTORS
[] = {
98 {0x00040000, 0x00008000, -1, -1},
99 {0x00048000, 0x00008000, -1, -1},
100 {0x00050000, 0x00008000, -1, -1},
101 {0x00058000, 0x00008000, -1, -1},
104 #define TMS470R1A384_BANK2_NUM_SECTORS \
105 (sizeof(TMS470R1A384_BANK2_SECTORS)/sizeof(TMS470R1A384_BANK2_SECTORS[0]))
107 /* ---------------------------------------------------------------------- */
109 static int tms470_read_part_info(struct flash_bank_s
*bank
)
111 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
112 target_t
*target
= bank
->target
;
113 uint32_t device_ident_reg
;
114 uint32_t silicon_version
;
115 uint32_t technology_family
;
117 uint32_t part_number
;
120 /* we shall not rely on the caller in this test, this function allocates memory,
121 thus and executing the code more than once may cause memory leak */
122 if (tms470_info
->device_ident_reg
)
125 /* read and parse the device identification register */
126 target_read_u32(target
, 0xFFFFFFF0, &device_ident_reg
);
128 LOG_INFO("device_ident_reg = 0x%08" PRIx32
"", device_ident_reg
);
130 if ((device_ident_reg
& 7) == 0)
132 LOG_WARNING("Cannot identify target as a TMS470 family.");
133 return ERROR_FLASH_OPERATION_FAILED
;
136 silicon_version
= (device_ident_reg
>> 12) & 0xF;
137 technology_family
= (device_ident_reg
>> 11) & 1;
138 rom_flash
= (device_ident_reg
>> 10) & 1;
139 part_number
= (device_ident_reg
>> 3) & 0x7f;
142 * If the part number is known, determine if the flash bank is valid
143 * based on the base address being within the known flash bank
144 * ranges. Then fixup/complete the remaining fields of the flash
150 part_name
= "TMS470R1A256";
152 if (bank
->base
>= 0x00040000)
154 LOG_ERROR("No %s flash bank contains base address 0x%08" PRIx32
".", part_name
, bank
->base
);
155 return ERROR_FLASH_OPERATION_FAILED
;
157 tms470_info
->ordinal
= 0;
158 bank
->base
= 0x00000000;
159 bank
->size
= 256 * 1024;
160 bank
->num_sectors
= TMS470R1A256_NUM_SECTORS
;
161 bank
->sectors
= malloc(sizeof(TMS470R1A256_SECTORS
));
164 return ERROR_FLASH_OPERATION_FAILED
;
166 (void)memcpy(bank
->sectors
, TMS470R1A256_SECTORS
, sizeof(TMS470R1A256_SECTORS
));
170 part_name
= "TMS470R1A288";
172 if (bank
->base
< 0x00008000)
174 tms470_info
->ordinal
= 0;
175 bank
->base
= 0x00000000;
176 bank
->size
= 32 * 1024;
177 bank
->num_sectors
= TMS470R1A288_BANK0_NUM_SECTORS
;
178 bank
->sectors
= malloc(sizeof(TMS470R1A288_BANK0_SECTORS
));
181 return ERROR_FLASH_OPERATION_FAILED
;
183 (void)memcpy(bank
->sectors
, TMS470R1A288_BANK0_SECTORS
, sizeof(TMS470R1A288_BANK0_SECTORS
));
185 else if ((bank
->base
>= 0x00040000) && (bank
->base
< 0x00080000))
187 tms470_info
->ordinal
= 1;
188 bank
->base
= 0x00040000;
189 bank
->size
= 256 * 1024;
190 bank
->num_sectors
= TMS470R1A288_BANK1_NUM_SECTORS
;
191 bank
->sectors
= malloc(sizeof(TMS470R1A288_BANK1_SECTORS
));
194 return ERROR_FLASH_OPERATION_FAILED
;
196 (void)memcpy(bank
->sectors
, TMS470R1A288_BANK1_SECTORS
, sizeof(TMS470R1A288_BANK1_SECTORS
));
200 LOG_ERROR("No %s flash bank contains base address 0x%08" PRIx32
".", part_name
, bank
->base
);
201 return ERROR_FLASH_OPERATION_FAILED
;
206 part_name
= "TMS470R1A384";
208 if (bank
->base
< 0x00020000)
210 tms470_info
->ordinal
= 0;
211 bank
->base
= 0x00000000;
212 bank
->size
= 128 * 1024;
213 bank
->num_sectors
= TMS470R1A384_BANK0_NUM_SECTORS
;
214 bank
->sectors
= malloc(sizeof(TMS470R1A384_BANK0_SECTORS
));
217 return ERROR_FLASH_OPERATION_FAILED
;
219 (void)memcpy(bank
->sectors
, TMS470R1A384_BANK0_SECTORS
, sizeof(TMS470R1A384_BANK0_SECTORS
));
221 else if ((bank
->base
>= 0x00020000) && (bank
->base
< 0x00040000))
223 tms470_info
->ordinal
= 1;
224 bank
->base
= 0x00020000;
225 bank
->size
= 128 * 1024;
226 bank
->num_sectors
= TMS470R1A384_BANK1_NUM_SECTORS
;
227 bank
->sectors
= malloc(sizeof(TMS470R1A384_BANK1_SECTORS
));
230 return ERROR_FLASH_OPERATION_FAILED
;
232 (void)memcpy(bank
->sectors
, TMS470R1A384_BANK1_SECTORS
, sizeof(TMS470R1A384_BANK1_SECTORS
));
234 else if ((bank
->base
>= 0x00040000) && (bank
->base
< 0x00060000))
236 tms470_info
->ordinal
= 2;
237 bank
->base
= 0x00040000;
238 bank
->size
= 128 * 1024;
239 bank
->num_sectors
= TMS470R1A384_BANK2_NUM_SECTORS
;
240 bank
->sectors
= malloc(sizeof(TMS470R1A384_BANK2_SECTORS
));
243 return ERROR_FLASH_OPERATION_FAILED
;
245 (void)memcpy(bank
->sectors
, TMS470R1A384_BANK2_SECTORS
, sizeof(TMS470R1A384_BANK2_SECTORS
));
249 LOG_ERROR("No %s flash bank contains base address 0x%08" PRIx32
".", part_name
, bank
->base
);
250 return ERROR_FLASH_OPERATION_FAILED
;
255 LOG_WARNING("Could not identify part 0x%02x as a member of the TMS470 family.", (unsigned)part_number
);
256 return ERROR_FLASH_OPERATION_FAILED
;
259 /* turn off memory selects */
260 target_write_u32(target
, 0xFFFFFFE4, 0x00000000);
261 target_write_u32(target
, 0xFFFFFFE0, 0x00000000);
263 bank
->chip_width
= 32;
264 bank
->bus_width
= 32;
266 LOG_INFO("Identified %s, ver=%d, core=%s, nvmem=%s.",
268 (int)(silicon_version
),
269 (technology_family
? "1.8v" : "3.3v"),
270 (rom_flash
? "rom" : "flash"));
272 tms470_info
->device_ident_reg
= device_ident_reg
;
273 tms470_info
->silicon_version
= silicon_version
;
274 tms470_info
->technology_family
= technology_family
;
275 tms470_info
->rom_flash
= rom_flash
;
276 tms470_info
->part_number
= part_number
;
277 tms470_info
->part_name
= part_name
;
280 * Disable reset on address access violation.
282 target_write_u32(target
, 0xFFFFFFE0, 0x00004007);
287 /* ---------------------------------------------------------------------- */
289 static uint32_t keysSet
= 0;
290 static uint32_t flashKeys
[4];
292 static int tms470_handle_flash_keyset_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
296 command_print(cmd_ctx
, "tms470 flash_keyset <key0> <key1> <key2> <key3>");
297 return ERROR_INVALID_ARGUMENTS
;
303 for (i
= 0; i
< 4; i
++)
305 int start
= (0 == strncmp(args
[i
], "0x", 2)) ? 2 : 0;
307 if (1 != sscanf(&args
[i
][start
], "%" SCNx32
"", &flashKeys
[i
]))
309 command_print(cmd_ctx
, "could not process flash key %s", args
[i
]);
310 LOG_ERROR("could not process flash key %s", args
[i
]);
311 return ERROR_INVALID_ARGUMENTS
;
319 command_print(cmd_ctx
, "tms470 flash_keyset <key0> <key1> <key2> <key3>");
320 return ERROR_INVALID_ARGUMENTS
;
325 command_print(cmd_ctx
, "using flash keys 0x%08" PRIx32
", 0x%08" PRIx32
", 0x%08" PRIx32
", 0x%08" PRIx32
"",
326 flashKeys
[0], flashKeys
[1], flashKeys
[2], flashKeys
[3]);
330 command_print(cmd_ctx
, "flash keys not set");
336 static const uint32_t FLASH_KEYS_ALL_ONES
[] = { 0xFFFFFFFF, 0xFFFFFFFF,
337 0xFFFFFFFF, 0xFFFFFFFF,
340 static const uint32_t FLASH_KEYS_ALL_ZEROS
[] = { 0x00000000, 0x00000000,
341 0x00000000, 0x00000000,
344 static const uint32_t FLASH_KEYS_MIX1
[] = { 0xf0fff0ff, 0xf0fff0ff,
345 0xf0fff0ff, 0xf0fff0ff
348 static const uint32_t FLASH_KEYS_MIX2
[] = { 0x0000ffff, 0x0000ffff,
349 0x0000ffff, 0x0000ffff
352 /* ---------------------------------------------------------------------- */
354 static int oscMHz
= 12;
356 static int tms470_handle_osc_megahertz_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
360 command_print(cmd_ctx
, "tms470 osc_megahertz <MHz>");
361 return ERROR_INVALID_ARGUMENTS
;
365 sscanf(args
[0], "%d", &oscMHz
);
370 LOG_ERROR("osc_megahertz must be positive and non-zero!");
371 command_print(cmd_ctx
, "osc_megahertz must be positive and non-zero!");
373 return ERROR_INVALID_ARGUMENTS
;
376 command_print(cmd_ctx
, "osc_megahertz=%d", oscMHz
);
381 /* ---------------------------------------------------------------------- */
383 static int plldis
= 0;
385 static int tms470_handle_plldis_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
389 command_print(cmd_ctx
, "tms470 plldis <0 | 1>");
390 return ERROR_INVALID_ARGUMENTS
;
394 sscanf(args
[0], "%d", &plldis
);
395 plldis
= plldis
? 1 : 0;
398 command_print(cmd_ctx
, "plldis=%d", plldis
);
403 /* ---------------------------------------------------------------------- */
405 static int tms470_check_flash_unlocked(target_t
* target
)
409 target_read_u32(target
, 0xFFE89C08, &fmbbusy
);
410 LOG_INFO("tms470 fmbbusy = 0x%08" PRIx32
" -> %s", fmbbusy
, fmbbusy
& 0x8000 ? "unlocked" : "LOCKED");
411 return fmbbusy
& 0x8000 ? ERROR_OK
: ERROR_FLASH_OPERATION_FAILED
;
414 /* ---------------------------------------------------------------------- */
416 static int tms470_try_flash_keys(target_t
* target
, const uint32_t * key_set
)
418 uint32_t glbctrl
, fmmstat
;
419 int retval
= ERROR_FLASH_OPERATION_FAILED
;
422 target_read_u32(target
, 0xFFFFFFDC, &glbctrl
);
423 target_write_u32(target
, 0xFFFFFFDC, glbctrl
| 0x10);
425 /* only perform the key match when 3VSTAT is clear */
426 target_read_u32(target
, 0xFFE8BC0C, &fmmstat
);
427 if (!(fmmstat
& 0x08))
430 uint32_t fmbptr
, fmbac2
, orig_fmregopt
;
432 target_write_u32(target
, 0xFFE8BC04, fmmstat
& ~0x07);
434 /* wait for pump ready */
437 target_read_u32(target
, 0xFFE8A814, &fmbptr
);
440 while (!(fmbptr
& 0x0200));
442 /* force max wait states */
443 target_read_u32(target
, 0xFFE88004, &fmbac2
);
444 target_write_u32(target
, 0xFFE88004, fmbac2
| 0xff);
446 /* save current access mode, force normal read mode */
447 target_read_u32(target
, 0xFFE89C00, &orig_fmregopt
);
448 target_write_u32(target
, 0xFFE89C00, 0x00);
450 for (i
= 0; i
< 4; i
++)
454 /* There is no point displaying the value of tmp, it is
455 * filtered by the chip. The purpose of this read is to
456 * prime the unlocking logic rather than read out the value.
458 target_read_u32(target
, 0x00001FF0 + 4 * i
, &tmp
);
460 LOG_INFO("tms470 writing fmpkey = 0x%08" PRIx32
"", key_set
[i
]);
461 target_write_u32(target
, 0xFFE89C0C, key_set
[i
]);
464 if (ERROR_OK
== tms470_check_flash_unlocked(target
))
467 * There seems to be a side-effect of reading the FMPKEY
468 * register in that it re-enables the protection. So we
471 for (i
= 0; i
< 4; i
++)
475 target_read_u32(target
, 0x00001FF0 + 4 * i
, &tmp
);
476 target_write_u32(target
, 0xFFE89C0C, key_set
[i
]);
481 /* restore settings */
482 target_write_u32(target
, 0xFFE89C00, orig_fmregopt
);
483 target_write_u32(target
, 0xFFE88004, fmbac2
);
486 /* clear config bit */
487 target_write_u32(target
, 0xFFFFFFDC, glbctrl
);
492 /* ---------------------------------------------------------------------- */
494 static int tms470_unlock_flash(struct flash_bank_s
*bank
)
496 target_t
*target
= bank
->target
;
497 const uint32_t *p_key_sets
[5];
498 unsigned i
, key_set_count
;
503 p_key_sets
[0] = flashKeys
;
504 p_key_sets
[1] = FLASH_KEYS_ALL_ONES
;
505 p_key_sets
[2] = FLASH_KEYS_ALL_ZEROS
;
506 p_key_sets
[3] = FLASH_KEYS_MIX1
;
507 p_key_sets
[4] = FLASH_KEYS_MIX2
;
512 p_key_sets
[0] = FLASH_KEYS_ALL_ONES
;
513 p_key_sets
[1] = FLASH_KEYS_ALL_ZEROS
;
514 p_key_sets
[2] = FLASH_KEYS_MIX1
;
515 p_key_sets
[3] = FLASH_KEYS_MIX2
;
518 for (i
= 0; i
< key_set_count
; i
++)
520 if (tms470_try_flash_keys(target
, p_key_sets
[i
]) == ERROR_OK
)
522 LOG_INFO("tms470 flash is unlocked");
527 LOG_WARNING("tms470 could not unlock flash memory protection level 2");
528 return ERROR_FLASH_OPERATION_FAILED
;
531 /* ---------------------------------------------------------------------- */
533 static int tms470_flash_initialize_internal_state_machine(struct flash_bank_s
*bank
)
535 uint32_t fmmac2
, fmmac1
, fmmaxep
, k
, delay
, glbctrl
, sysclk
;
536 target_t
*target
= bank
->target
;
537 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
538 int result
= ERROR_OK
;
541 * Select the desired bank to be programmed by writing BANK[2:0] of
544 target_read_u32(target
, 0xFFE8BC04, &fmmac2
);
546 fmmac2
|= (tms470_info
->ordinal
& 7);
547 target_write_u32(target
, 0xFFE8BC04, fmmac2
);
548 LOG_DEBUG("set fmmac2 = 0x%04" PRIx32
"", fmmac2
);
551 * Disable level 1 sector protection by setting bit 15 of FMMAC1.
553 target_read_u32(target
, 0xFFE8BC00, &fmmac1
);
555 target_write_u32(target
, 0xFFE8BC00, fmmac1
);
556 LOG_DEBUG("set fmmac1 = 0x%04" PRIx32
"", fmmac1
);
561 target_write_u32(target
, 0xFFE8BC10, 0x2fc0);
562 LOG_DEBUG("set fmtcreg = 0x2fc0");
567 target_write_u32(target
, 0xFFE8A07C, 50);
568 LOG_DEBUG("set fmmaxpp = 50");
571 * MAXCP = 0xf000 + 2000
573 target_write_u32(target
, 0xFFE8A084, 0xf000 + 2000);
574 LOG_DEBUG("set fmmaxcp = 0x%04x", 0xf000 + 2000);
579 target_read_u32(target
, 0xFFE8A080, &fmmaxep
);
580 if (fmmaxep
== 0xf000)
582 fmmaxep
= 0xf000 + 4095;
583 target_write_u32(target
, 0xFFE8A80C, 0x9964);
584 LOG_DEBUG("set fmptr3 = 0x9964");
588 fmmaxep
= 0xa000 + 4095;
589 target_write_u32(target
, 0xFFE8A80C, 0x9b64);
590 LOG_DEBUG("set fmptr3 = 0x9b64");
592 target_write_u32(target
, 0xFFE8A080, fmmaxep
);
593 LOG_DEBUG("set fmmaxep = 0x%04" PRIx32
"", fmmaxep
);
598 target_write_u32(target
, 0xFFE8A810, 0xa000);
599 LOG_DEBUG("set fmptr4 = 0xa000");
602 * FMPESETUP, delay parameter selected based on clock frequency.
604 * According to the TI App Note SPNU257 and flashing code, delay is
605 * int((sysclk(MHz) + 1) / 2), with a minimum of 5. The system
606 * clock is usually derived from the ZPLL module, and selected by
609 target_read_u32(target
, 0xFFFFFFDC, &glbctrl
);
610 sysclk
= (plldis
? 1 : (glbctrl
& 0x08) ? 4 : 8) * oscMHz
/ (1 + (glbctrl
& 7));
611 delay
= (sysclk
> 10) ? (sysclk
+ 1) / 2 : 5;
612 target_write_u32(target
, 0xFFE8A018, (delay
<< 4) | (delay
<< 8));
613 LOG_DEBUG("set fmpsetup = 0x%04" PRIx32
"", (delay
<< 4) | (delay
<< 8));
616 * FMPVEVACCESS, based on delay.
618 k
= delay
| (delay
<< 8);
619 target_write_u32(target
, 0xFFE8A05C, k
);
620 LOG_DEBUG("set fmpvevaccess = 0x%04" PRIx32
"", k
);
623 * FMPCHOLD, FMPVEVHOLD, FMPVEVSETUP, based on delay.
626 target_write_u32(target
, 0xFFE8A034, k
);
627 LOG_DEBUG("set fmpchold = 0x%04" PRIx32
"", k
);
628 target_write_u32(target
, 0xFFE8A040, k
);
629 LOG_DEBUG("set fmpvevhold = 0x%04" PRIx32
"", k
);
630 target_write_u32(target
, 0xFFE8A024, k
);
631 LOG_DEBUG("set fmpvevsetup = 0x%04" PRIx32
"", k
);
634 * FMCVACCESS, based on delay.
637 target_write_u32(target
, 0xFFE8A060, k
);
638 LOG_DEBUG("set fmcvaccess = 0x%04" PRIx32
"", k
);
641 * FMCSETUP, based on delay.
643 k
= 0x3000 | delay
* 20;
644 target_write_u32(target
, 0xFFE8A020, k
);
645 LOG_DEBUG("set fmcsetup = 0x%04" PRIx32
"", k
);
648 * FMEHOLD, based on delay.
650 k
= (delay
* 20) << 2;
651 target_write_u32(target
, 0xFFE8A038, k
);
652 LOG_DEBUG("set fmehold = 0x%04" PRIx32
"", k
);
655 * PWIDTH, CWIDTH, EWIDTH, based on delay.
657 target_write_u32(target
, 0xFFE8A050, delay
* 8);
658 LOG_DEBUG("set fmpwidth = 0x%04" PRIx32
"", delay
* 8);
659 target_write_u32(target
, 0xFFE8A058, delay
* 1000);
660 LOG_DEBUG("set fmcwidth = 0x%04" PRIx32
"", delay
* 1000);
661 target_write_u32(target
, 0xFFE8A054, delay
* 5400);
662 LOG_DEBUG("set fmewidth = 0x%04" PRIx32
"", delay
* 5400);
667 /* ---------------------------------------------------------------------- */
669 int tms470_flash_status(struct flash_bank_s
*bank
)
671 target_t
*target
= bank
->target
;
672 int result
= ERROR_OK
;
675 target_read_u32(target
, 0xFFE8BC0C, &fmmstat
);
676 LOG_DEBUG("set fmmstat = 0x%04" PRIx32
"", fmmstat
);
678 if (fmmstat
& 0x0080)
680 LOG_WARNING("tms470 flash command: erase still active after busy clear.");
681 result
= ERROR_FLASH_OPERATION_FAILED
;
684 if (fmmstat
& 0x0040)
686 LOG_WARNING("tms470 flash command: program still active after busy clear.");
687 result
= ERROR_FLASH_OPERATION_FAILED
;
690 if (fmmstat
& 0x0020)
692 LOG_WARNING("tms470 flash command: invalid data command.");
693 result
= ERROR_FLASH_OPERATION_FAILED
;
696 if (fmmstat
& 0x0010)
698 LOG_WARNING("tms470 flash command: program, erase or validate sector failed.");
699 result
= ERROR_FLASH_OPERATION_FAILED
;
702 if (fmmstat
& 0x0008)
704 LOG_WARNING("tms470 flash command: voltage instability detected.");
705 result
= ERROR_FLASH_OPERATION_FAILED
;
708 if (fmmstat
& 0x0006)
710 LOG_WARNING("tms470 flash command: command suspend detected.");
711 result
= ERROR_FLASH_OPERATION_FAILED
;
714 if (fmmstat
& 0x0001)
716 LOG_WARNING("tms470 flash command: sector was locked.");
717 result
= ERROR_FLASH_OPERATION_FAILED
;
723 /* ---------------------------------------------------------------------- */
725 static int tms470_erase_sector(struct flash_bank_s
*bank
, int sector
)
727 uint32_t glbctrl
, orig_fmregopt
, fmbsea
, fmbseb
, fmmstat
;
728 target_t
*target
= bank
->target
;
729 uint32_t flashAddr
= bank
->base
+ bank
->sectors
[sector
].offset
;
730 int result
= ERROR_OK
;
733 * Set the bit GLBCTRL4 of the GLBCTRL register (in the System
734 * module) to enable writing to the flash registers }.
736 target_read_u32(target
, 0xFFFFFFDC, &glbctrl
);
737 target_write_u32(target
, 0xFFFFFFDC, glbctrl
| 0x10);
738 LOG_DEBUG("set glbctrl = 0x%08" PRIx32
"", glbctrl
| 0x10);
740 /* Force normal read mode. */
741 target_read_u32(target
, 0xFFE89C00, &orig_fmregopt
);
742 target_write_u32(target
, 0xFFE89C00, 0);
743 LOG_DEBUG("set fmregopt = 0x%08x", 0);
745 (void)tms470_flash_initialize_internal_state_machine(bank
);
748 * Select one or more bits in FMBSEA or FMBSEB to disable Level 1
749 * protection for the particular sector to be erased/written.
753 target_read_u32(target
, 0xFFE88008, &fmbsea
);
754 target_write_u32(target
, 0xFFE88008, fmbsea
| (1 << sector
));
755 LOG_DEBUG("set fmbsea = 0x%04" PRIx32
"", fmbsea
| (1 << sector
));
759 target_read_u32(target
, 0xFFE8800C, &fmbseb
);
760 target_write_u32(target
, 0xFFE8800C, fmbseb
| (1 << (sector
- 16)));
761 LOG_DEBUG("set fmbseb = 0x%04" PRIx32
"", fmbseb
| (1 << (sector
- 16)));
763 bank
->sectors
[sector
].is_protected
= 0;
766 * clear status regiser, sent erase command, kickoff erase
768 target_write_u16(target
, flashAddr
, 0x0040);
769 LOG_DEBUG("write *(uint16_t *)0x%08" PRIx32
"=0x0040", flashAddr
);
770 target_write_u16(target
, flashAddr
, 0x0020);
771 LOG_DEBUG("write *(uint16_t *)0x%08" PRIx32
"=0x0020", flashAddr
);
772 target_write_u16(target
, flashAddr
, 0xffff);
773 LOG_DEBUG("write *(uint16_t *)0x%08" PRIx32
"=0xffff", flashAddr
);
776 * Monitor FMMSTAT, busy until clear, then check and other flags for
777 * ultimate result of the operation.
781 target_read_u32(target
, 0xFFE8BC0C, &fmmstat
);
782 if (fmmstat
& 0x0100)
787 while (fmmstat
& 0x0100);
789 result
= tms470_flash_status(bank
);
793 target_write_u32(target
, 0xFFE88008, fmbsea
);
794 LOG_DEBUG("set fmbsea = 0x%04" PRIx32
"", fmbsea
);
795 bank
->sectors
[sector
].is_protected
= fmbsea
& (1 << sector
) ? 0 : 1;
799 target_write_u32(target
, 0xFFE8800C, fmbseb
);
800 LOG_DEBUG("set fmbseb = 0x%04" PRIx32
"", fmbseb
);
801 bank
->sectors
[sector
].is_protected
= fmbseb
& (1 << (sector
- 16)) ? 0 : 1;
803 target_write_u32(target
, 0xFFE89C00, orig_fmregopt
);
804 LOG_DEBUG("set fmregopt = 0x%08" PRIx32
"", orig_fmregopt
);
805 target_write_u32(target
, 0xFFFFFFDC, glbctrl
);
806 LOG_DEBUG("set glbctrl = 0x%08" PRIx32
"", glbctrl
);
808 if (result
== ERROR_OK
)
810 bank
->sectors
[sector
].is_erased
= 1;
816 /* ----------------------------------------------------------------------
817 Implementation of Flash Driver Interfaces
818 ---------------------------------------------------------------------- */
820 static int tms470_register_commands(struct command_context_s
*cmd_ctx
)
822 command_t
*tms470_cmd
= register_command(cmd_ctx
, NULL
, "tms470", NULL
, COMMAND_ANY
, "applies to TI tms470 family");
824 register_command(cmd_ctx
, tms470_cmd
, "flash_keyset", tms470_handle_flash_keyset_command
, COMMAND_ANY
, "tms470 flash_keyset <key0> <key1> <key2> <key3>");
825 register_command(cmd_ctx
, tms470_cmd
, "osc_megahertz", tms470_handle_osc_megahertz_command
, COMMAND_ANY
, "tms470 osc_megahertz <MHz>");
826 register_command(cmd_ctx
, tms470_cmd
, "plldis", tms470_handle_plldis_command
, COMMAND_ANY
, "tms470 plldis <0/1>");
831 /* ---------------------------------------------------------------------- */
833 static int tms470_erase(struct flash_bank_s
*bank
, int first
, int last
)
835 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
836 int sector
, result
= ERROR_OK
;
838 if (bank
->target
->state
!= TARGET_HALTED
)
840 LOG_ERROR("Target not halted");
841 return ERROR_TARGET_NOT_HALTED
;
844 tms470_read_part_info(bank
);
846 if ((first
< 0) || (first
>= bank
->num_sectors
) || (last
< 0) || (last
>= bank
->num_sectors
) || (first
> last
))
848 LOG_ERROR("Sector range %d to %d invalid.", first
, last
);
849 return ERROR_FLASH_SECTOR_INVALID
;
852 result
= tms470_unlock_flash(bank
);
853 if (result
!= ERROR_OK
)
858 for (sector
= first
; sector
<= last
; sector
++)
860 LOG_INFO("Erasing tms470 bank %d sector %d...", tms470_info
->ordinal
, sector
);
862 result
= tms470_erase_sector(bank
, sector
);
864 if (result
!= ERROR_OK
)
866 LOG_ERROR("tms470 could not erase flash sector.");
871 LOG_INFO("sector erased successfully.");
878 /* ---------------------------------------------------------------------- */
880 static int tms470_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
)
882 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
883 target_t
*target
= bank
->target
;
884 uint32_t fmmac2
, fmbsea
, fmbseb
;
887 if (target
->state
!= TARGET_HALTED
)
889 LOG_ERROR("Target not halted");
890 return ERROR_TARGET_NOT_HALTED
;
893 tms470_read_part_info(bank
);
895 if ((first
< 0) || (first
>= bank
->num_sectors
) || (last
< 0) || (last
>= bank
->num_sectors
) || (first
> last
))
897 LOG_ERROR("Sector range %d to %d invalid.", first
, last
);
898 return ERROR_FLASH_SECTOR_INVALID
;
901 /* enable the appropriate bank */
902 target_read_u32(target
, 0xFFE8BC04, &fmmac2
);
903 target_write_u32(target
, 0xFFE8BC04, (fmmac2
& ~7) | tms470_info
->ordinal
);
905 /* get the original sector proection flags for this bank */
906 target_read_u32(target
, 0xFFE88008, &fmbsea
);
907 target_read_u32(target
, 0xFFE8800C, &fmbseb
);
909 for (sector
= 0; sector
< bank
->num_sectors
; sector
++)
913 fmbsea
= set
? fmbsea
& ~(1 << sector
) : fmbsea
| (1 << sector
);
914 bank
->sectors
[sector
].is_protected
= set
? 1 : 0;
918 fmbseb
= set
? fmbseb
& ~(1 << (sector
- 16)) : fmbseb
| (1 << (sector
- 16));
919 bank
->sectors
[sector
].is_protected
= set
? 1 : 0;
923 /* update the protection bits */
924 target_write_u32(target
, 0xFFE88008, fmbsea
);
925 target_write_u32(target
, 0xFFE8800C, fmbseb
);
930 /* ---------------------------------------------------------------------- */
932 static int tms470_write(struct flash_bank_s
*bank
, uint8_t * buffer
, uint32_t offset
, uint32_t count
)
934 target_t
*target
= bank
->target
;
935 uint32_t glbctrl
, fmbac2
, orig_fmregopt
, fmbsea
, fmbseb
, fmmaxpp
, fmmstat
;
936 int result
= ERROR_OK
;
939 if (target
->state
!= TARGET_HALTED
)
941 LOG_ERROR("Target not halted");
942 return ERROR_TARGET_NOT_HALTED
;
945 tms470_read_part_info(bank
);
947 LOG_INFO("Writing %" PRId32
" bytes starting at 0x%08" PRIx32
"", count
, bank
->base
+ offset
);
950 target_read_u32(target
, 0xFFFFFFDC, &glbctrl
);
951 target_write_u32(target
, 0xFFFFFFDC, glbctrl
| 0x10);
953 (void)tms470_flash_initialize_internal_state_machine(bank
);
955 /* force max wait states */
956 target_read_u32(target
, 0xFFE88004, &fmbac2
);
957 target_write_u32(target
, 0xFFE88004, fmbac2
| 0xff);
959 /* save current access mode, force normal read mode */
960 target_read_u32(target
, 0xFFE89C00, &orig_fmregopt
);
961 target_write_u32(target
, 0xFFE89C00, 0x00);
964 * Disable Level 1 protection for all sectors to be erased/written.
966 target_read_u32(target
, 0xFFE88008, &fmbsea
);
967 target_write_u32(target
, 0xFFE88008, 0xffff);
968 target_read_u32(target
, 0xFFE8800C, &fmbseb
);
969 target_write_u32(target
, 0xFFE8800C, 0xffff);
972 target_read_u32(target
, 0xFFE8A07C, &fmmaxpp
);
974 for (i
= 0; i
< count
; i
+= 2)
976 uint32_t addr
= bank
->base
+ offset
+ i
;
977 uint16_t word
= (((uint16_t) buffer
[i
]) << 8) | (uint16_t) buffer
[i
+ 1];
981 LOG_INFO("writing 0x%04x at 0x%08" PRIx32
"", word
, addr
);
983 /* clear status register */
984 target_write_u16(target
, addr
, 0x0040);
985 /* program flash command */
986 target_write_u16(target
, addr
, 0x0010);
987 /* burn the 16-bit word (big-endian) */
988 target_write_u16(target
, addr
, word
);
991 * Monitor FMMSTAT, busy until clear, then check and other flags
992 * for ultimate result of the operation.
996 target_read_u32(target
, 0xFFE8BC0C, &fmmstat
);
997 if (fmmstat
& 0x0100)
1002 while (fmmstat
& 0x0100);
1004 if (fmmstat
& 0x3ff)
1006 LOG_ERROR("fmstat = 0x%04" PRIx32
"", fmmstat
);
1007 LOG_ERROR("Could not program word 0x%04x at address 0x%08" PRIx32
".", word
, addr
);
1008 result
= ERROR_FLASH_OPERATION_FAILED
;
1014 LOG_INFO("skipping 0xffff at 0x%08" PRIx32
"", addr
);
1019 target_write_u32(target
, 0xFFE88008, fmbsea
);
1020 target_write_u32(target
, 0xFFE8800C, fmbseb
);
1021 target_write_u32(target
, 0xFFE88004, fmbac2
);
1022 target_write_u32(target
, 0xFFE89C00, orig_fmregopt
);
1023 target_write_u32(target
, 0xFFFFFFDC, glbctrl
);
1028 /* ---------------------------------------------------------------------- */
1030 static int tms470_probe(struct flash_bank_s
*bank
)
1032 if (bank
->target
->state
!= TARGET_HALTED
)
1034 LOG_WARNING("Cannot communicate... target not halted.");
1035 return ERROR_TARGET_NOT_HALTED
;
1038 return tms470_read_part_info(bank
);
1041 static int tms470_auto_probe(struct flash_bank_s
*bank
)
1043 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
1045 if (tms470_info
->device_ident_reg
)
1047 return tms470_probe(bank
);
1050 /* ---------------------------------------------------------------------- */
1052 static int tms470_erase_check(struct flash_bank_s
*bank
)
1054 target_t
*target
= bank
->target
;
1055 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
1056 int sector
, result
= ERROR_OK
;
1057 uint32_t fmmac2
, fmbac2
, glbctrl
, orig_fmregopt
;
1058 static uint8_t buffer
[64 * 1024];
1060 if (target
->state
!= TARGET_HALTED
)
1062 LOG_ERROR("Target not halted");
1063 return ERROR_TARGET_NOT_HALTED
;
1066 if (!tms470_info
->device_ident_reg
)
1068 tms470_read_part_info(bank
);
1072 target_read_u32(target
, 0xFFFFFFDC, &glbctrl
);
1073 target_write_u32(target
, 0xFFFFFFDC, glbctrl
| 0x10);
1075 /* save current access mode, force normal read mode */
1076 target_read_u32(target
, 0xFFE89C00, &orig_fmregopt
);
1077 target_write_u32(target
, 0xFFE89C00, 0x00);
1079 /* enable the appropriate bank */
1080 target_read_u32(target
, 0xFFE8BC04, &fmmac2
);
1081 target_write_u32(target
, 0xFFE8BC04, (fmmac2
& ~7) | tms470_info
->ordinal
);
1084 target_write_u32(target
, 0xFFE8BC10, 0x2fc0);
1086 /* clear TEZ in fmbrdy */
1087 target_write_u32(target
, 0xFFE88010, 0x0b);
1089 /* save current wait states, force max */
1090 target_read_u32(target
, 0xFFE88004, &fmbac2
);
1091 target_write_u32(target
, 0xFFE88004, fmbac2
| 0xff);
1094 * The TI primitives inspect the flash memory by reading one 32-bit
1095 * word at a time. Here we read an entire sector and inspect it in
1096 * an attempt to reduce the JTAG overhead.
1098 for (sector
= 0; sector
< bank
->num_sectors
; sector
++)
1100 if (bank
->sectors
[sector
].is_erased
!= 1)
1102 uint32_t i
, addr
= bank
->base
+ bank
->sectors
[sector
].offset
;
1104 LOG_INFO("checking flash bank %d sector %d", tms470_info
->ordinal
, sector
);
1106 target_read_buffer(target
, addr
, bank
->sectors
[sector
].size
, buffer
);
1108 bank
->sectors
[sector
].is_erased
= 1;
1109 for (i
= 0; i
< bank
->sectors
[sector
].size
; i
++)
1111 if (buffer
[i
] != 0xff)
1113 LOG_WARNING("tms470 bank %d, sector %d, not erased.", tms470_info
->ordinal
, sector
);
1114 LOG_WARNING("at location 0x%08" PRIx32
": flash data is 0x%02x.", addr
+ i
, buffer
[i
]);
1116 bank
->sectors
[sector
].is_erased
= 0;
1121 if (bank
->sectors
[sector
].is_erased
!= 1)
1123 result
= ERROR_FLASH_SECTOR_NOT_ERASED
;
1128 LOG_INFO("sector erased");
1132 /* reset TEZ, wait states, read mode, GLBCTRL.4 */
1133 target_write_u32(target
, 0xFFE88010, 0x0f);
1134 target_write_u32(target
, 0xFFE88004, fmbac2
);
1135 target_write_u32(target
, 0xFFE89C00, orig_fmregopt
);
1136 target_write_u32(target
, 0xFFFFFFDC, glbctrl
);
1141 /* ---------------------------------------------------------------------- */
1143 static int tms470_protect_check(struct flash_bank_s
*bank
)
1145 target_t
*target
= bank
->target
;
1146 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
1147 int sector
, result
= ERROR_OK
;
1148 uint32_t fmmac2
, fmbsea
, fmbseb
;
1150 if (target
->state
!= TARGET_HALTED
)
1152 LOG_ERROR("Target not halted");
1153 return ERROR_TARGET_NOT_HALTED
;
1156 if (!tms470_info
->device_ident_reg
)
1158 tms470_read_part_info(bank
);
1161 /* enable the appropriate bank */
1162 target_read_u32(target
, 0xFFE8BC04, &fmmac2
);
1163 target_write_u32(target
, 0xFFE8BC04, (fmmac2
& ~7) | tms470_info
->ordinal
);
1165 target_read_u32(target
, 0xFFE88008, &fmbsea
);
1166 target_read_u32(target
, 0xFFE8800C, &fmbseb
);
1168 for (sector
= 0; sector
< bank
->num_sectors
; sector
++)
1174 protected = fmbsea
& (1 << sector
) ? 0 : 1;
1175 bank
->sectors
[sector
].is_protected
= protected;
1179 protected = fmbseb
& (1 << (sector
- 16)) ? 0 : 1;
1180 bank
->sectors
[sector
].is_protected
= protected;
1183 LOG_DEBUG("bank %d sector %d is %s", tms470_info
->ordinal
, sector
, protected ? "protected" : "not protected");
1189 /* ---------------------------------------------------------------------- */
1191 static int tms470_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
)
1194 tms470_flash_bank_t
*tms470_info
= bank
->driver_priv
;
1196 if (!tms470_info
->device_ident_reg
)
1198 tms470_read_part_info(bank
);
1201 if (!tms470_info
->device_ident_reg
)
1203 (void)snprintf(buf
, buf_size
, "Cannot identify target as a TMS470\n");
1204 return ERROR_FLASH_OPERATION_FAILED
;
1207 used
+= snprintf(buf
, buf_size
, "\ntms470 information: Chip is %s\n", tms470_info
->part_name
);
1211 used
+= snprintf(buf
, buf_size
, "Flash protection level 2 is %s\n", tms470_check_flash_unlocked(bank
->target
) == ERROR_OK
? "disabled" : "enabled");
1218 /* ---------------------------------------------------------------------- */
1221 * flash bank tms470 <base> <size> <chip_width> <bus_width> <target>
1225 static int tms470_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
)
1227 bank
->driver_priv
= malloc(sizeof(tms470_flash_bank_t
));
1229 if (!bank
->driver_priv
)
1231 return ERROR_FLASH_OPERATION_FAILED
;
1234 (void)memset(bank
->driver_priv
, 0, sizeof(tms470_flash_bank_t
));
1239 flash_driver_t tms470_flash
= {
1241 .register_commands
= &tms470_register_commands
,
1242 .flash_bank_command
= &tms470_flash_bank_command
,
1243 .erase
= &tms470_erase
,
1244 .protect
= &tms470_protect
,
1245 .write
= &tms470_write
,
1246 .probe
= &tms470_probe
,
1247 .auto_probe
= &tms470_auto_probe
,
1248 .erase_check
= &tms470_erase_check
,
1249 .protect_check
= &tms470_protect_check
,
1250 .info
= &tms470_info
,