1 /***************************************************************************
2 * Copyright (C) 2005, 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * Copyright (C) 2009 Michael Schwingen *
5 * michael@schwingen.org *
6 * Copyright (C) 2010 Øyvind Harboe <oyvind.harboe@zylin.com> *
7 * Copyright (C) 2010 by Antonio Borneo <borneo.antonio@gmail.com> *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details. *
19 * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the *
21 * Free Software Foundation, Inc., *
22 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
23 ***************************************************************************/
31 #include <target/arm.h>
32 #include <helper/binarybuffer.h>
33 #include <target/algorithm.h>
36 #define CFI_MAX_BUS_WIDTH 4
37 #define CFI_MAX_CHIP_WIDTH 4
39 /* defines internal maximum size for code fragment in cfi_intel_write_block() */
40 #define CFI_MAX_INTEL_CODESIZE 256
42 static struct cfi_unlock_addresses cfi_unlock_addresses
[] =
44 [CFI_UNLOCK_555_2AA
] = { .unlock1
= 0x555, .unlock2
= 0x2aa },
45 [CFI_UNLOCK_5555_2AAA
] = { .unlock1
= 0x5555, .unlock2
= 0x2aaa },
48 /* CFI fixups foward declarations */
49 static void cfi_fixup_0002_erase_regions(struct flash_bank
*flash
, void *param
);
50 static void cfi_fixup_0002_unlock_addresses(struct flash_bank
*flash
, void *param
);
51 static void cfi_fixup_atmel_reversed_erase_regions(struct flash_bank
*flash
, void *param
);
53 /* fixup after reading cmdset 0002 primary query table */
54 static const struct cfi_fixup cfi_0002_fixups
[] = {
55 {CFI_MFR_SST
, 0x00D4, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
56 {CFI_MFR_SST
, 0x00D5, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
57 {CFI_MFR_SST
, 0x00D6, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
58 {CFI_MFR_SST
, 0x00D7, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
59 {CFI_MFR_SST
, 0x2780, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
60 {CFI_MFR_ATMEL
, 0x00C8, cfi_fixup_atmel_reversed_erase_regions
, NULL
},
61 {CFI_MFR_FUJITSU
, 0x22ea, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
62 {CFI_MFR_FUJITSU
, 0x226b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
63 {CFI_MFR_AMIC
, 0xb31a, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
64 {CFI_MFR_MX
, 0x225b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
65 {CFI_MFR_AMD
, 0x225b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
66 {CFI_MFR_ANY
, CFI_ID_ANY
, cfi_fixup_0002_erase_regions
, NULL
},
70 /* fixup after reading cmdset 0001 primary query table */
71 static const struct cfi_fixup cfi_0001_fixups
[] = {
75 static void cfi_fixup(struct flash_bank
*bank
, const struct cfi_fixup
*fixups
)
77 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
78 const struct cfi_fixup
*f
;
80 for (f
= fixups
; f
->fixup
; f
++)
82 if (((f
->mfr
== CFI_MFR_ANY
) || (f
->mfr
== cfi_info
->manufacturer
)) &&
83 ((f
->id
== CFI_ID_ANY
) || (f
->id
== cfi_info
->device_id
)))
85 f
->fixup(bank
, f
->param
);
90 /* inline uint32_t flash_address(struct flash_bank *bank, int sector, uint32_t offset) */
91 static __inline__
uint32_t flash_address(struct flash_bank
*bank
, int sector
, uint32_t offset
)
93 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
95 if (cfi_info
->x16_as_x8
) offset
*= 2;
97 /* while the sector list isn't built, only accesses to sector 0 work */
99 return bank
->base
+ offset
* bank
->bus_width
;
104 LOG_ERROR("BUG: sector list not yet built");
107 return bank
->base
+ bank
->sectors
[sector
].offset
+ offset
* bank
->bus_width
;
111 static void cfi_command(struct flash_bank
*bank
, uint8_t cmd
, uint8_t *cmd_buf
)
115 /* clear whole buffer, to ensure bits that exceed the bus_width
118 for (i
= 0; i
< CFI_MAX_BUS_WIDTH
; i
++)
121 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
123 for (i
= bank
->bus_width
; i
> 0; i
--)
125 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
130 for (i
= 1; i
<= bank
->bus_width
; i
++)
132 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
137 static int cfi_send_command(struct flash_bank
*bank
, uint8_t cmd
, uint32_t address
)
139 uint8_t command
[CFI_MAX_BUS_WIDTH
];
141 cfi_command(bank
, cmd
, command
);
142 return target_write_memory(bank
->target
, address
, bank
->bus_width
, 1, command
);
145 /* read unsigned 8-bit value from the bank
146 * flash banks are expected to be made of similar chips
147 * the query result should be the same for all
149 static uint8_t cfi_query_u8(struct flash_bank
*bank
, int sector
, uint32_t offset
)
151 struct target
*target
= bank
->target
;
152 uint8_t data
[CFI_MAX_BUS_WIDTH
];
154 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 1, data
);
156 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
159 return data
[bank
->bus_width
- 1];
162 /* read unsigned 8-bit value from the bank
163 * in case of a bank made of multiple chips,
164 * the individual values are ORed
166 static uint8_t cfi_get_u8(struct flash_bank
*bank
, int sector
, uint32_t offset
)
168 struct target
*target
= bank
->target
;
169 uint8_t data
[CFI_MAX_BUS_WIDTH
];
172 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 1, data
);
174 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
176 for (i
= 0; i
< bank
->bus_width
/ bank
->chip_width
; i
++)
184 for (i
= 0; i
< bank
->bus_width
/ bank
->chip_width
; i
++)
185 value
|= data
[bank
->bus_width
- 1 - i
];
191 static uint16_t cfi_query_u16(struct flash_bank
*bank
, int sector
, uint32_t offset
)
193 struct target
*target
= bank
->target
;
194 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
195 uint8_t data
[CFI_MAX_BUS_WIDTH
* 2];
197 if (cfi_info
->x16_as_x8
)
200 for (i
= 0;i
< 2;i
++)
201 target_read_memory(target
, flash_address(bank
, sector
, offset
+ i
), bank
->bus_width
, 1,
202 &data
[i
*bank
->bus_width
]);
205 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 2, data
);
207 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
208 return data
[0] | data
[bank
->bus_width
] << 8;
210 return data
[bank
->bus_width
- 1] | data
[(2 * bank
->bus_width
) - 1] << 8;
213 static uint32_t cfi_query_u32(struct flash_bank
*bank
, int sector
, uint32_t offset
)
215 struct target
*target
= bank
->target
;
216 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
217 uint8_t data
[CFI_MAX_BUS_WIDTH
* 4];
219 if (cfi_info
->x16_as_x8
)
222 for (i
= 0;i
< 4;i
++)
223 target_read_memory(target
, flash_address(bank
, sector
, offset
+ i
), bank
->bus_width
, 1,
224 &data
[i
*bank
->bus_width
]);
227 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 4, data
);
229 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
230 return data
[0] | data
[bank
->bus_width
] << 8 | data
[bank
->bus_width
* 2] << 16 | data
[bank
->bus_width
* 3] << 24;
232 return data
[bank
->bus_width
- 1] | data
[(2* bank
->bus_width
) - 1] << 8 |
233 data
[(3 * bank
->bus_width
) - 1] << 16 | data
[(4 * bank
->bus_width
) - 1] << 24;
236 static int cfi_reset(struct flash_bank
*bank
)
238 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
239 int retval
= ERROR_OK
;
241 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
246 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
251 if (cfi_info
->manufacturer
== 0x20 &&
252 (cfi_info
->device_id
== 0x227E || cfi_info
->device_id
== 0x7E))
254 /* Numonix M29W128G is cmd 0xFF intolerant - causes internal undefined state
255 * so we send an extra 0xF0 reset to fix the bug */
256 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x00))) != ERROR_OK
)
265 static void cfi_intel_clear_status_register(struct flash_bank
*bank
)
267 struct target
*target
= bank
->target
;
269 if (target
->state
!= TARGET_HALTED
)
271 LOG_ERROR("BUG: attempted to clear status register while target wasn't halted");
275 cfi_send_command(bank
, 0x50, flash_address(bank
, 0, 0x0));
278 static uint8_t cfi_intel_wait_status_busy(struct flash_bank
*bank
, int timeout
)
282 while ((!((status
= cfi_get_u8(bank
, 0, 0x0)) & 0x80)) && (timeout
-- > 0))
284 LOG_DEBUG("status: 0x%x", status
);
288 /* mask out bit 0 (reserved) */
289 status
= status
& 0xfe;
291 LOG_DEBUG("status: 0x%x", status
);
293 if ((status
& 0x80) != 0x80)
295 LOG_ERROR("timeout while waiting for WSM to become ready");
297 else if (status
!= 0x80)
299 LOG_ERROR("status register: 0x%x", status
);
301 LOG_ERROR("Block Lock-Bit Detected, Operation Abort");
303 LOG_ERROR("Program suspended");
305 LOG_ERROR("Low Programming Voltage Detected, Operation Aborted");
307 LOG_ERROR("Program Error / Error in Setting Lock-Bit");
309 LOG_ERROR("Error in Block Erasure or Clear Lock-Bits");
311 LOG_ERROR("Block Erase Suspended");
313 cfi_intel_clear_status_register(bank
);
319 static int cfi_spansion_wait_status_busy(struct flash_bank
*bank
, int timeout
)
321 uint8_t status
, oldstatus
;
322 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
324 oldstatus
= cfi_get_u8(bank
, 0, 0x0);
327 status
= cfi_get_u8(bank
, 0, 0x0);
328 if ((status
^ oldstatus
) & 0x40) {
329 if (status
& cfi_info
->status_poll_mask
& 0x20) {
330 oldstatus
= cfi_get_u8(bank
, 0, 0x0);
331 status
= cfi_get_u8(bank
, 0, 0x0);
332 if ((status
^ oldstatus
) & 0x40) {
333 LOG_ERROR("dq5 timeout, status: 0x%x", status
);
334 return(ERROR_FLASH_OPERATION_FAILED
);
336 LOG_DEBUG("status: 0x%x", status
);
340 } else { /* no toggle: finished, OK */
341 LOG_DEBUG("status: 0x%x", status
);
347 } while (timeout
-- > 0);
349 LOG_ERROR("timeout, status: 0x%x", status
);
351 return(ERROR_FLASH_BUSY
);
354 static int cfi_read_intel_pri_ext(struct flash_bank
*bank
)
357 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
358 struct cfi_intel_pri_ext
*pri_ext
;
360 if (cfi_info
->pri_ext
)
361 free(cfi_info
->pri_ext
);
363 pri_ext
= malloc(sizeof(struct cfi_intel_pri_ext
));
366 LOG_ERROR("Out of memory");
369 cfi_info
->pri_ext
= pri_ext
;
371 pri_ext
->pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
372 pri_ext
->pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
373 pri_ext
->pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
375 if ((pri_ext
->pri
[0] != 'P') || (pri_ext
->pri
[1] != 'R') || (pri_ext
->pri
[2] != 'I'))
377 if ((retval
= cfi_reset(bank
)) != ERROR_OK
)
381 LOG_ERROR("Could not read bank flash bank information");
382 return ERROR_FLASH_BANK_INVALID
;
385 pri_ext
->major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
386 pri_ext
->minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
388 LOG_DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext
->pri
[0], pri_ext
->pri
[1], pri_ext
->pri
[2], pri_ext
->major_version
, pri_ext
->minor_version
);
390 pri_ext
->feature_support
= cfi_query_u32(bank
, 0, cfi_info
->pri_addr
+ 5);
391 pri_ext
->suspend_cmd_support
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 9);
392 pri_ext
->blk_status_reg_mask
= cfi_query_u16(bank
, 0, cfi_info
->pri_addr
+ 0xa);
394 LOG_DEBUG("feature_support: 0x%" PRIx32
", suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x",
395 pri_ext
->feature_support
,
396 pri_ext
->suspend_cmd_support
,
397 pri_ext
->blk_status_reg_mask
);
399 pri_ext
->vcc_optimal
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xc);
400 pri_ext
->vpp_optimal
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xd);
402 LOG_DEBUG("Vcc opt: %x.%x, Vpp opt: %u.%x",
403 (pri_ext
->vcc_optimal
& 0xf0) >> 4, pri_ext
->vcc_optimal
& 0x0f,
404 (pri_ext
->vpp_optimal
& 0xf0) >> 4, pri_ext
->vpp_optimal
& 0x0f);
406 pri_ext
->num_protection_fields
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xe);
407 if (pri_ext
->num_protection_fields
!= 1)
409 LOG_WARNING("expected one protection register field, but found %i", pri_ext
->num_protection_fields
);
412 pri_ext
->prot_reg_addr
= cfi_query_u16(bank
, 0, cfi_info
->pri_addr
+ 0xf);
413 pri_ext
->fact_prot_reg_size
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0x11);
414 pri_ext
->user_prot_reg_size
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0x12);
416 LOG_DEBUG("protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i", pri_ext
->num_protection_fields
, pri_ext
->prot_reg_addr
, 1 << pri_ext
->fact_prot_reg_size
, 1 << pri_ext
->user_prot_reg_size
);
421 static int cfi_read_spansion_pri_ext(struct flash_bank
*bank
)
424 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
425 struct cfi_spansion_pri_ext
*pri_ext
;
427 if (cfi_info
->pri_ext
)
428 free(cfi_info
->pri_ext
);
430 pri_ext
= malloc(sizeof(struct cfi_spansion_pri_ext
));
433 LOG_ERROR("Out of memory");
436 cfi_info
->pri_ext
= pri_ext
;
438 pri_ext
->pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
439 pri_ext
->pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
440 pri_ext
->pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
442 if ((pri_ext
->pri
[0] != 'P') || (pri_ext
->pri
[1] != 'R') || (pri_ext
->pri
[2] != 'I'))
444 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
448 LOG_ERROR("Could not read spansion bank information");
449 return ERROR_FLASH_BANK_INVALID
;
452 pri_ext
->major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
453 pri_ext
->minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
455 LOG_DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext
->pri
[0], pri_ext
->pri
[1], pri_ext
->pri
[2], pri_ext
->major_version
, pri_ext
->minor_version
);
457 pri_ext
->SiliconRevision
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 5);
458 pri_ext
->EraseSuspend
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 6);
459 pri_ext
->BlkProt
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 7);
460 pri_ext
->TmpBlkUnprotect
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 8);
461 pri_ext
->BlkProtUnprot
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 9);
462 pri_ext
->SimultaneousOps
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 10);
463 pri_ext
->BurstMode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 11);
464 pri_ext
->PageMode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 12);
465 pri_ext
->VppMin
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 13);
466 pri_ext
->VppMax
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 14);
467 pri_ext
->TopBottom
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 15);
469 LOG_DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext
->SiliconRevision
,
470 pri_ext
->EraseSuspend
, pri_ext
->BlkProt
);
472 LOG_DEBUG("Temporary Unprotect: 0x%x, Block Protect Scheme: 0x%x, Simultaneous Ops: 0x%x", pri_ext
->TmpBlkUnprotect
,
473 pri_ext
->BlkProtUnprot
, pri_ext
->SimultaneousOps
);
475 LOG_DEBUG("Burst Mode: 0x%x, Page Mode: 0x%x, ", pri_ext
->BurstMode
, pri_ext
->PageMode
);
478 LOG_DEBUG("Vpp min: %u.%x, Vpp max: %u.%x",
479 (pri_ext
->VppMin
& 0xf0) >> 4, pri_ext
->VppMin
& 0x0f,
480 (pri_ext
->VppMax
& 0xf0) >> 4, pri_ext
->VppMax
& 0x0f);
482 LOG_DEBUG("WP# protection 0x%x", pri_ext
->TopBottom
);
484 /* default values for implementation specific workarounds */
485 pri_ext
->_unlock1
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock1
;
486 pri_ext
->_unlock2
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock2
;
487 pri_ext
->_reversed_geometry
= 0;
492 static int cfi_read_atmel_pri_ext(struct flash_bank
*bank
)
495 struct cfi_atmel_pri_ext atmel_pri_ext
;
496 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
497 struct cfi_spansion_pri_ext
*pri_ext
;
499 if (cfi_info
->pri_ext
)
500 free(cfi_info
->pri_ext
);
502 pri_ext
= malloc(sizeof(struct cfi_spansion_pri_ext
));
505 LOG_ERROR("Out of memory");
509 /* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,
510 * but a different primary extended query table.
511 * We read the atmel table, and prepare a valid AMD/Spansion query table.
514 memset(pri_ext
, 0, sizeof(struct cfi_spansion_pri_ext
));
516 cfi_info
->pri_ext
= pri_ext
;
518 atmel_pri_ext
.pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
519 atmel_pri_ext
.pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
520 atmel_pri_ext
.pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
522 if ((atmel_pri_ext
.pri
[0] != 'P') || (atmel_pri_ext
.pri
[1] != 'R') || (atmel_pri_ext
.pri
[2] != 'I'))
524 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
528 LOG_ERROR("Could not read atmel bank information");
529 return ERROR_FLASH_BANK_INVALID
;
532 pri_ext
->pri
[0] = atmel_pri_ext
.pri
[0];
533 pri_ext
->pri
[1] = atmel_pri_ext
.pri
[1];
534 pri_ext
->pri
[2] = atmel_pri_ext
.pri
[2];
536 atmel_pri_ext
.major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
537 atmel_pri_ext
.minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
539 LOG_DEBUG("pri: '%c%c%c', version: %c.%c", atmel_pri_ext
.pri
[0], atmel_pri_ext
.pri
[1], atmel_pri_ext
.pri
[2], atmel_pri_ext
.major_version
, atmel_pri_ext
.minor_version
);
541 pri_ext
->major_version
= atmel_pri_ext
.major_version
;
542 pri_ext
->minor_version
= atmel_pri_ext
.minor_version
;
544 atmel_pri_ext
.features
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 5);
545 atmel_pri_ext
.bottom_boot
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 6);
546 atmel_pri_ext
.burst_mode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 7);
547 atmel_pri_ext
.page_mode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 8);
549 LOG_DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x",
550 atmel_pri_ext
.features
, atmel_pri_ext
.bottom_boot
, atmel_pri_ext
.burst_mode
, atmel_pri_ext
.page_mode
);
552 if (atmel_pri_ext
.features
& 0x02)
553 pri_ext
->EraseSuspend
= 2;
555 if (atmel_pri_ext
.bottom_boot
)
556 pri_ext
->TopBottom
= 2;
558 pri_ext
->TopBottom
= 3;
560 pri_ext
->_unlock1
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock1
;
561 pri_ext
->_unlock2
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock2
;
566 static int cfi_read_0002_pri_ext(struct flash_bank
*bank
)
568 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
570 if (cfi_info
->manufacturer
== CFI_MFR_ATMEL
)
572 return cfi_read_atmel_pri_ext(bank
);
576 return cfi_read_spansion_pri_ext(bank
);
580 static int cfi_spansion_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
583 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
584 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
586 printed
= snprintf(buf
, buf_size
, "\nSpansion primary algorithm extend information:\n");
590 printed
= snprintf(buf
, buf_size
, "pri: '%c%c%c', version: %c.%c\n", pri_ext
->pri
[0],
591 pri_ext
->pri
[1], pri_ext
->pri
[2],
592 pri_ext
->major_version
, pri_ext
->minor_version
);
596 printed
= snprintf(buf
, buf_size
, "Silicon Rev.: 0x%x, Address Sensitive unlock: 0x%x\n",
597 (pri_ext
->SiliconRevision
) >> 2,
598 (pri_ext
->SiliconRevision
) & 0x03);
602 printed
= snprintf(buf
, buf_size
, "Erase Suspend: 0x%x, Sector Protect: 0x%x\n",
603 pri_ext
->EraseSuspend
,
608 printed
= snprintf(buf
, buf_size
, "VppMin: %u.%x, VppMax: %u.%x\n",
609 (pri_ext
->VppMin
& 0xf0) >> 4, pri_ext
->VppMin
& 0x0f,
610 (pri_ext
->VppMax
& 0xf0) >> 4, pri_ext
->VppMax
& 0x0f);
615 static int cfi_intel_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
618 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
619 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
621 printed
= snprintf(buf
, buf_size
, "\nintel primary algorithm extend information:\n");
625 printed
= snprintf(buf
, buf_size
, "pri: '%c%c%c', version: %c.%c\n", pri_ext
->pri
[0], pri_ext
->pri
[1], pri_ext
->pri
[2], pri_ext
->major_version
, pri_ext
->minor_version
);
629 printed
= snprintf(buf
, buf_size
, "feature_support: 0x%" PRIx32
", suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x\n", pri_ext
->feature_support
, pri_ext
->suspend_cmd_support
, pri_ext
->blk_status_reg_mask
);
633 printed
= snprintf(buf
, buf_size
, "Vcc opt: %x.%x, Vpp opt: %u.%x\n",
634 (pri_ext
->vcc_optimal
& 0xf0) >> 4, pri_ext
->vcc_optimal
& 0x0f,
635 (pri_ext
->vpp_optimal
& 0xf0) >> 4, pri_ext
->vpp_optimal
& 0x0f);
639 printed
= snprintf(buf
, buf_size
, "protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i\n", pri_ext
->num_protection_fields
, pri_ext
->prot_reg_addr
, 1 << pri_ext
->fact_prot_reg_size
, 1 << pri_ext
->user_prot_reg_size
);
644 /* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#> [options]
646 FLASH_BANK_COMMAND_HANDLER(cfi_flash_bank_command
)
648 struct cfi_flash_bank
*cfi_info
;
652 LOG_WARNING("incomplete flash_bank cfi configuration");
653 return ERROR_FLASH_BANK_INVALID
;
657 * - not exceed max value;
659 * - be equal to a power of 2.
660 * bus must be wide enought to hold one chip */
661 if ((bank
->chip_width
> CFI_MAX_CHIP_WIDTH
)
662 || (bank
->bus_width
> CFI_MAX_BUS_WIDTH
)
663 || (bank
->chip_width
== 0)
664 || (bank
->bus_width
== 0)
665 || (bank
->chip_width
& (bank
->chip_width
- 1))
666 || (bank
->bus_width
& (bank
->bus_width
- 1))
667 || (bank
->chip_width
> bank
->bus_width
))
669 LOG_ERROR("chip and bus width have to specified in bytes");
670 return ERROR_FLASH_BANK_INVALID
;
673 cfi_info
= malloc(sizeof(struct cfi_flash_bank
));
674 cfi_info
->probed
= 0;
675 cfi_info
->erase_region_info
= 0;
676 cfi_info
->pri_ext
= NULL
;
677 bank
->driver_priv
= cfi_info
;
679 cfi_info
->write_algorithm
= NULL
;
681 cfi_info
->x16_as_x8
= 0;
682 cfi_info
->jedec_probe
= 0;
683 cfi_info
->not_cfi
= 0;
685 for (unsigned i
= 6; i
< CMD_ARGC
; i
++)
687 if (strcmp(CMD_ARGV
[i
], "x16_as_x8") == 0)
689 cfi_info
->x16_as_x8
= 1;
691 else if (strcmp(CMD_ARGV
[i
], "jedec_probe") == 0)
693 cfi_info
->jedec_probe
= 1;
697 cfi_info
->write_algorithm
= NULL
;
699 /* bank wasn't probed yet */
700 cfi_info
->qry
[0] = -1;
705 static int cfi_intel_erase(struct flash_bank
*bank
, int first
, int last
)
708 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
711 cfi_intel_clear_status_register(bank
);
713 for (i
= first
; i
<= last
; i
++)
715 if ((retval
= cfi_send_command(bank
, 0x20, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
720 if ((retval
= cfi_send_command(bank
, 0xd0, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
725 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->block_erase_timeout_typ
)) == 0x80)
726 bank
->sectors
[i
].is_erased
= 1;
729 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
734 LOG_ERROR("couldn't erase block %i of flash bank at base 0x%" PRIx32
, i
, bank
->base
);
735 return ERROR_FLASH_OPERATION_FAILED
;
739 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
742 static int cfi_spansion_erase(struct flash_bank
*bank
, int first
, int last
)
745 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
746 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
749 for (i
= first
; i
<= last
; i
++)
751 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
756 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
761 if ((retval
= cfi_send_command(bank
, 0x80, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
766 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
771 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
776 if ((retval
= cfi_send_command(bank
, 0x30, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
781 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->block_erase_timeout_typ
)) == ERROR_OK
)
782 bank
->sectors
[i
].is_erased
= 1;
785 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
790 LOG_ERROR("couldn't erase block %i of flash bank at base 0x%" PRIx32
, i
, bank
->base
);
791 return ERROR_FLASH_OPERATION_FAILED
;
795 return cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0));
798 static int cfi_erase(struct flash_bank
*bank
, int first
, int last
)
800 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
802 if (bank
->target
->state
!= TARGET_HALTED
)
804 LOG_ERROR("Target not halted");
805 return ERROR_TARGET_NOT_HALTED
;
808 if ((first
< 0) || (last
< first
) || (last
>= bank
->num_sectors
))
810 return ERROR_FLASH_SECTOR_INVALID
;
813 if (cfi_info
->qry
[0] != 'Q')
814 return ERROR_FLASH_BANK_NOT_PROBED
;
816 switch (cfi_info
->pri_id
)
820 return cfi_intel_erase(bank
, first
, last
);
823 return cfi_spansion_erase(bank
, first
, last
);
826 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
833 static int cfi_intel_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
836 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
837 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
841 /* if the device supports neither legacy lock/unlock (bit 3) nor
842 * instant individual block locking (bit 5).
844 if (!(pri_ext
->feature_support
& 0x28))
845 return ERROR_FLASH_OPERATION_FAILED
;
847 cfi_intel_clear_status_register(bank
);
849 for (i
= first
; i
<= last
; i
++)
851 if ((retval
= cfi_send_command(bank
, 0x60, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
857 if ((retval
= cfi_send_command(bank
, 0x01, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
861 bank
->sectors
[i
].is_protected
= 1;
865 if ((retval
= cfi_send_command(bank
, 0xd0, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
869 bank
->sectors
[i
].is_protected
= 0;
872 /* instant individual block locking doesn't require reading of the status register */
873 if (!(pri_ext
->feature_support
& 0x20))
875 /* Clear lock bits operation may take up to 1.4s */
876 cfi_intel_wait_status_busy(bank
, 1400);
880 uint8_t block_status
;
881 /* read block lock bit, to verify status */
882 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
886 block_status
= cfi_get_u8(bank
, i
, 0x2);
888 if ((block_status
& 0x1) != set
)
890 LOG_ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set
, block_status
);
891 if ((retval
= cfi_send_command(bank
, 0x70, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
895 cfi_intel_wait_status_busy(bank
, 10);
898 return ERROR_FLASH_OPERATION_FAILED
;
908 /* if the device doesn't support individual block lock bits set/clear,
909 * all blocks have been unlocked in parallel, so we set those that should be protected
911 if ((!set
) && (!(pri_ext
->feature_support
& 0x20)))
913 /* FIX!!! this code path is broken!!!
915 * The correct approach is:
917 * 1. read out current protection status
919 * 2. override read out protection status w/unprotected.
921 * 3. re-protect what should be protected.
924 for (i
= 0; i
< bank
->num_sectors
; i
++)
926 if (bank
->sectors
[i
].is_protected
== 1)
928 cfi_intel_clear_status_register(bank
);
930 if ((retval
= cfi_send_command(bank
, 0x60, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
935 if ((retval
= cfi_send_command(bank
, 0x01, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
940 cfi_intel_wait_status_busy(bank
, 100);
945 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
948 static int cfi_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
950 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
952 if (bank
->target
->state
!= TARGET_HALTED
)
954 LOG_ERROR("Target not halted");
955 return ERROR_TARGET_NOT_HALTED
;
958 if ((first
< 0) || (last
< first
) || (last
>= bank
->num_sectors
))
960 LOG_ERROR("Invalid sector range");
961 return ERROR_FLASH_SECTOR_INVALID
;
964 if (cfi_info
->qry
[0] != 'Q')
965 return ERROR_FLASH_BANK_NOT_PROBED
;
967 switch (cfi_info
->pri_id
)
971 return cfi_intel_protect(bank
, set
, first
, last
);
974 LOG_ERROR("protect: cfi primary command set %i unsupported", cfi_info
->pri_id
);
979 /* Convert code image to target endian */
980 /* FIXME create general block conversion fcts in target.c?) */
981 static void cfi_fix_code_endian(struct target
*target
, uint8_t *dest
, const uint32_t *src
, uint32_t count
)
984 for (i
= 0; i
< count
; i
++)
986 target_buffer_set_u32(target
, dest
, *src
);
992 static uint32_t cfi_command_val(struct flash_bank
*bank
, uint8_t cmd
)
994 struct target
*target
= bank
->target
;
996 uint8_t buf
[CFI_MAX_BUS_WIDTH
];
997 cfi_command(bank
, cmd
, buf
);
998 switch (bank
->bus_width
)
1004 return target_buffer_get_u16(target
, buf
);
1007 return target_buffer_get_u32(target
, buf
);
1010 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
1015 static int cfi_intel_write_block(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t address
, uint32_t count
)
1017 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1018 struct target
*target
= bank
->target
;
1019 struct reg_param reg_params
[7];
1020 struct arm_algorithm armv4_5_info
;
1021 struct working_area
*source
;
1022 uint32_t buffer_size
= 32768;
1023 uint32_t write_command_val
, busy_pattern_val
, error_pattern_val
;
1025 /* algorithm register usage:
1026 * r0: source address (in RAM)
1027 * r1: target address (in Flash)
1029 * r3: flash write command
1030 * r4: status byte (returned to host)
1031 * r5: busy test pattern
1032 * r6: error test pattern
1035 static const uint32_t word_32_code
[] = {
1036 0xe4904004, /* loop: ldr r4, [r0], #4 */
1037 0xe5813000, /* str r3, [r1] */
1038 0xe5814000, /* str r4, [r1] */
1039 0xe5914000, /* busy: ldr r4, [r1] */
1040 0xe0047005, /* and r7, r4, r5 */
1041 0xe1570005, /* cmp r7, r5 */
1042 0x1afffffb, /* bne busy */
1043 0xe1140006, /* tst r4, r6 */
1044 0x1a000003, /* bne done */
1045 0xe2522001, /* subs r2, r2, #1 */
1046 0x0a000001, /* beq done */
1047 0xe2811004, /* add r1, r1 #4 */
1048 0xeafffff2, /* b loop */
1049 0xeafffffe /* done: b -2 */
1052 static const uint32_t word_16_code
[] = {
1053 0xe0d040b2, /* loop: ldrh r4, [r0], #2 */
1054 0xe1c130b0, /* strh r3, [r1] */
1055 0xe1c140b0, /* strh r4, [r1] */
1056 0xe1d140b0, /* busy ldrh r4, [r1] */
1057 0xe0047005, /* and r7, r4, r5 */
1058 0xe1570005, /* cmp r7, r5 */
1059 0x1afffffb, /* bne busy */
1060 0xe1140006, /* tst r4, r6 */
1061 0x1a000003, /* bne done */
1062 0xe2522001, /* subs r2, r2, #1 */
1063 0x0a000001, /* beq done */
1064 0xe2811002, /* add r1, r1 #2 */
1065 0xeafffff2, /* b loop */
1066 0xeafffffe /* done: b -2 */
1069 static const uint32_t word_8_code
[] = {
1070 0xe4d04001, /* loop: ldrb r4, [r0], #1 */
1071 0xe5c13000, /* strb r3, [r1] */
1072 0xe5c14000, /* strb r4, [r1] */
1073 0xe5d14000, /* busy ldrb r4, [r1] */
1074 0xe0047005, /* and r7, r4, r5 */
1075 0xe1570005, /* cmp r7, r5 */
1076 0x1afffffb, /* bne busy */
1077 0xe1140006, /* tst r4, r6 */
1078 0x1a000003, /* bne done */
1079 0xe2522001, /* subs r2, r2, #1 */
1080 0x0a000001, /* beq done */
1081 0xe2811001, /* add r1, r1 #1 */
1082 0xeafffff2, /* b loop */
1083 0xeafffffe /* done: b -2 */
1085 uint8_t target_code
[4*CFI_MAX_INTEL_CODESIZE
];
1086 const uint32_t *target_code_src
;
1087 uint32_t target_code_size
;
1088 int retval
= ERROR_OK
;
1091 cfi_intel_clear_status_register(bank
);
1093 armv4_5_info
.common_magic
= ARM_COMMON_MAGIC
;
1094 armv4_5_info
.core_mode
= ARM_MODE_SVC
;
1095 armv4_5_info
.core_state
= ARM_STATE_ARM
;
1097 /* If we are setting up the write_algorith, we need target_code_src */
1098 /* if not we only need target_code_size. */
1100 /* However, we don't want to create multiple code paths, so we */
1101 /* do the unecessary evaluation of target_code_src, which the */
1102 /* compiler will probably nicely optimize away if not needed */
1104 /* prepare algorithm code for target endian */
1105 switch (bank
->bus_width
)
1108 target_code_src
= word_8_code
;
1109 target_code_size
= sizeof(word_8_code
);
1112 target_code_src
= word_16_code
;
1113 target_code_size
= sizeof(word_16_code
);
1116 target_code_src
= word_32_code
;
1117 target_code_size
= sizeof(word_32_code
);
1120 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
1121 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1124 /* flash write code */
1125 if (!cfi_info
->write_algorithm
)
1127 if (target_code_size
> sizeof(target_code
))
1129 LOG_WARNING("Internal error - target code buffer to small. Increase CFI_MAX_INTEL_CODESIZE and recompile.");
1130 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1132 cfi_fix_code_endian(target
, target_code
, target_code_src
, target_code_size
/ 4);
1134 /* Get memory for block write handler */
1135 retval
= target_alloc_working_area(target
, target_code_size
, &cfi_info
->write_algorithm
);
1136 if (retval
!= ERROR_OK
)
1138 LOG_WARNING("No working area available, can't do block memory writes");
1139 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1142 /* write algorithm code to working area */
1143 retval
= target_write_buffer(target
, cfi_info
->write_algorithm
->address
, target_code_size
, target_code
);
1144 if (retval
!= ERROR_OK
)
1146 LOG_ERROR("Unable to write block write code to target");
1151 /* Get a workspace buffer for the data to flash starting with 32k size.
1152 Half size until buffer would be smaller 256 Bytem then fail back */
1153 /* FIXME Why 256 bytes, why not 32 bytes (smallest flash write page */
1154 while (target_alloc_working_area_try(target
, buffer_size
, &source
) != ERROR_OK
)
1157 if (buffer_size
<= 256)
1159 LOG_WARNING("no large enough working area available, can't do block memory writes");
1160 retval
= ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1165 /* setup algo registers */
1166 init_reg_param(®_params
[0], "r0", 32, PARAM_OUT
);
1167 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
1168 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
1169 init_reg_param(®_params
[3], "r3", 32, PARAM_OUT
);
1170 init_reg_param(®_params
[4], "r4", 32, PARAM_IN
);
1171 init_reg_param(®_params
[5], "r5", 32, PARAM_OUT
);
1172 init_reg_param(®_params
[6], "r6", 32, PARAM_OUT
);
1174 /* prepare command and status register patterns */
1175 write_command_val
= cfi_command_val(bank
, 0x40);
1176 busy_pattern_val
= cfi_command_val(bank
, 0x80);
1177 error_pattern_val
= cfi_command_val(bank
, 0x7e);
1179 LOG_DEBUG("Using target buffer at 0x%08" PRIx32
" and of size 0x%04" PRIx32
, source
->address
, buffer_size
);
1181 /* Programming main loop */
1184 uint32_t thisrun_count
= (count
> buffer_size
) ? buffer_size
: count
;
1187 if ((retval
= target_write_buffer(target
, source
->address
, thisrun_count
, buffer
)) != ERROR_OK
)
1192 buf_set_u32(reg_params
[0].value
, 0, 32, source
->address
);
1193 buf_set_u32(reg_params
[1].value
, 0, 32, address
);
1194 buf_set_u32(reg_params
[2].value
, 0, 32, thisrun_count
/ bank
->bus_width
);
1196 buf_set_u32(reg_params
[3].value
, 0, 32, write_command_val
);
1197 buf_set_u32(reg_params
[5].value
, 0, 32, busy_pattern_val
);
1198 buf_set_u32(reg_params
[6].value
, 0, 32, error_pattern_val
);
1200 LOG_DEBUG("Write 0x%04" PRIx32
" bytes to flash at 0x%08" PRIx32
, thisrun_count
, address
);
1202 /* Execute algorithm, assume breakpoint for last instruction */
1203 retval
= target_run_algorithm(target
, 0, NULL
, 7, reg_params
,
1204 cfi_info
->write_algorithm
->address
,
1205 cfi_info
->write_algorithm
->address
+ target_code_size
- sizeof(uint32_t),
1206 10000, /* 10s should be enough for max. 32k of data */
1209 /* On failure try a fall back to direct word writes */
1210 if (retval
!= ERROR_OK
)
1212 cfi_intel_clear_status_register(bank
);
1213 LOG_ERROR("Execution of flash algorythm failed. Can't fall back. Please report.");
1214 retval
= ERROR_FLASH_OPERATION_FAILED
;
1215 /* retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE; */
1216 /* FIXME To allow fall back or recovery, we must save the actual status
1217 somewhere, so that a higher level code can start recovery. */
1221 /* Check return value from algo code */
1222 wsm_error
= buf_get_u32(reg_params
[4].value
, 0, 32) & error_pattern_val
;
1225 /* read status register (outputs debug inforation) */
1226 cfi_intel_wait_status_busy(bank
, 100);
1227 cfi_intel_clear_status_register(bank
);
1228 retval
= ERROR_FLASH_OPERATION_FAILED
;
1232 buffer
+= thisrun_count
;
1233 address
+= thisrun_count
;
1234 count
-= thisrun_count
;
1239 /* free up resources */
1242 target_free_working_area(target
, source
);
1244 if (cfi_info
->write_algorithm
)
1246 target_free_working_area(target
, cfi_info
->write_algorithm
);
1247 cfi_info
->write_algorithm
= NULL
;
1250 destroy_reg_param(®_params
[0]);
1251 destroy_reg_param(®_params
[1]);
1252 destroy_reg_param(®_params
[2]);
1253 destroy_reg_param(®_params
[3]);
1254 destroy_reg_param(®_params
[4]);
1255 destroy_reg_param(®_params
[5]);
1256 destroy_reg_param(®_params
[6]);
1261 static int cfi_spansion_write_block(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t address
, uint32_t count
)
1263 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1264 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1265 struct target
*target
= bank
->target
;
1266 struct reg_param reg_params
[10];
1267 struct arm_algorithm armv4_5_info
;
1268 struct working_area
*source
;
1269 uint32_t buffer_size
= 32768;
1271 int retval
, retvaltemp
;
1272 int exit_code
= ERROR_OK
;
1274 /* input parameters - */
1275 /* R0 = source address */
1276 /* R1 = destination address */
1277 /* R2 = number of writes */
1278 /* R3 = flash write command */
1279 /* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
1280 /* output parameters - */
1281 /* R5 = 0x80 ok 0x00 bad */
1282 /* temp registers - */
1283 /* R6 = value read from flash to test status */
1284 /* R7 = holding register */
1285 /* unlock registers - */
1286 /* R8 = unlock1_addr */
1287 /* R9 = unlock1_cmd */
1288 /* R10 = unlock2_addr */
1289 /* R11 = unlock2_cmd */
1291 static const uint32_t word_32_code
[] = {
1292 /* 00008100 <sp_32_code>: */
1293 0xe4905004, /* ldr r5, [r0], #4 */
1294 0xe5889000, /* str r9, [r8] */
1295 0xe58ab000, /* str r11, [r10] */
1296 0xe5883000, /* str r3, [r8] */
1297 0xe5815000, /* str r5, [r1] */
1298 0xe1a00000, /* nop */
1300 /* 00008110 <sp_32_busy>: */
1301 0xe5916000, /* ldr r6, [r1] */
1302 0xe0257006, /* eor r7, r5, r6 */
1303 0xe0147007, /* ands r7, r4, r7 */
1304 0x0a000007, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */
1305 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1306 0x0afffff9, /* beq 8110 <sp_32_busy> ; b if DQ5 low */
1307 0xe5916000, /* ldr r6, [r1] */
1308 0xe0257006, /* eor r7, r5, r6 */
1309 0xe0147007, /* ands r7, r4, r7 */
1310 0x0a000001, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */
1311 0xe3a05000, /* mov r5, #0 ; 0x0 - return 0x00, error */
1312 0x1a000004, /* bne 8154 <sp_32_done> */
1314 /* 00008140 <sp_32_cont>: */
1315 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1316 0x03a05080, /* moveq r5, #128 ; 0x80 */
1317 0x0a000001, /* beq 8154 <sp_32_done> */
1318 0xe2811004, /* add r1, r1, #4 ; 0x4 */
1319 0xeaffffe8, /* b 8100 <sp_32_code> */
1321 /* 00008154 <sp_32_done>: */
1322 0xeafffffe /* b 8154 <sp_32_done> */
1325 static const uint32_t word_16_code
[] = {
1326 /* 00008158 <sp_16_code>: */
1327 0xe0d050b2, /* ldrh r5, [r0], #2 */
1328 0xe1c890b0, /* strh r9, [r8] */
1329 0xe1cab0b0, /* strh r11, [r10] */
1330 0xe1c830b0, /* strh r3, [r8] */
1331 0xe1c150b0, /* strh r5, [r1] */
1332 0xe1a00000, /* nop (mov r0,r0) */
1334 /* 00008168 <sp_16_busy>: */
1335 0xe1d160b0, /* ldrh r6, [r1] */
1336 0xe0257006, /* eor r7, r5, r6 */
1337 0xe0147007, /* ands r7, r4, r7 */
1338 0x0a000007, /* beq 8198 <sp_16_cont> */
1339 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1340 0x0afffff9, /* beq 8168 <sp_16_busy> */
1341 0xe1d160b0, /* ldrh r6, [r1] */
1342 0xe0257006, /* eor r7, r5, r6 */
1343 0xe0147007, /* ands r7, r4, r7 */
1344 0x0a000001, /* beq 8198 <sp_16_cont> */
1345 0xe3a05000, /* mov r5, #0 ; 0x0 */
1346 0x1a000004, /* bne 81ac <sp_16_done> */
1348 /* 00008198 <sp_16_cont>: */
1349 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1350 0x03a05080, /* moveq r5, #128 ; 0x80 */
1351 0x0a000001, /* beq 81ac <sp_16_done> */
1352 0xe2811002, /* add r1, r1, #2 ; 0x2 */
1353 0xeaffffe8, /* b 8158 <sp_16_code> */
1355 /* 000081ac <sp_16_done>: */
1356 0xeafffffe /* b 81ac <sp_16_done> */
1359 static const uint32_t word_16_code_dq7only
[] = {
1361 0xe0d050b2, /* ldrh r5, [r0], #2 */
1362 0xe1c890b0, /* strh r9, [r8] */
1363 0xe1cab0b0, /* strh r11, [r10] */
1364 0xe1c830b0, /* strh r3, [r8] */
1365 0xe1c150b0, /* strh r5, [r1] */
1366 0xe1a00000, /* nop (mov r0,r0) */
1369 0xe1d160b0, /* ldrh r6, [r1] */
1370 0xe0257006, /* eor r7, r5, r6 */
1371 0xe2177080, /* ands r7, #0x80 */
1372 0x1afffffb, /* bne 8168 <sp_16_busy> */
1374 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1375 0x03a05080, /* moveq r5, #128 ; 0x80 */
1376 0x0a000001, /* beq 81ac <sp_16_done> */
1377 0xe2811002, /* add r1, r1, #2 ; 0x2 */
1378 0xeafffff0, /* b 8158 <sp_16_code> */
1380 /* 000081ac <sp_16_done>: */
1381 0xeafffffe /* b 81ac <sp_16_done> */
1384 static const uint32_t word_8_code
[] = {
1385 /* 000081b0 <sp_16_code_end>: */
1386 0xe4d05001, /* ldrb r5, [r0], #1 */
1387 0xe5c89000, /* strb r9, [r8] */
1388 0xe5cab000, /* strb r11, [r10] */
1389 0xe5c83000, /* strb r3, [r8] */
1390 0xe5c15000, /* strb r5, [r1] */
1391 0xe1a00000, /* nop (mov r0,r0) */
1393 /* 000081c0 <sp_8_busy>: */
1394 0xe5d16000, /* ldrb r6, [r1] */
1395 0xe0257006, /* eor r7, r5, r6 */
1396 0xe0147007, /* ands r7, r4, r7 */
1397 0x0a000007, /* beq 81f0 <sp_8_cont> */
1398 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1399 0x0afffff9, /* beq 81c0 <sp_8_busy> */
1400 0xe5d16000, /* ldrb r6, [r1] */
1401 0xe0257006, /* eor r7, r5, r6 */
1402 0xe0147007, /* ands r7, r4, r7 */
1403 0x0a000001, /* beq 81f0 <sp_8_cont> */
1404 0xe3a05000, /* mov r5, #0 ; 0x0 */
1405 0x1a000004, /* bne 8204 <sp_8_done> */
1407 /* 000081f0 <sp_8_cont>: */
1408 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1409 0x03a05080, /* moveq r5, #128 ; 0x80 */
1410 0x0a000001, /* beq 8204 <sp_8_done> */
1411 0xe2811001, /* add r1, r1, #1 ; 0x1 */
1412 0xeaffffe8, /* b 81b0 <sp_16_code_end> */
1414 /* 00008204 <sp_8_done>: */
1415 0xeafffffe /* b 8204 <sp_8_done> */
1418 armv4_5_info
.common_magic
= ARM_COMMON_MAGIC
;
1419 armv4_5_info
.core_mode
= ARM_MODE_SVC
;
1420 armv4_5_info
.core_state
= ARM_STATE_ARM
;
1422 int target_code_size
;
1423 const uint32_t *target_code_src
;
1425 switch (bank
->bus_width
)
1428 target_code_src
= word_8_code
;
1429 target_code_size
= sizeof(word_8_code
);
1432 /* Check for DQ5 support */
1433 if( cfi_info
->status_poll_mask
& (1 << 5) )
1435 target_code_src
= word_16_code
;
1436 target_code_size
= sizeof(word_16_code
);
1440 /* No DQ5 support. Use DQ7 DATA# polling only. */
1441 target_code_src
= word_16_code_dq7only
;
1442 target_code_size
= sizeof(word_16_code_dq7only
);
1446 target_code_src
= word_32_code
;
1447 target_code_size
= sizeof(word_32_code
);
1450 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
1451 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1454 /* flash write code */
1455 if (!cfi_info
->write_algorithm
)
1457 uint8_t *target_code
;
1459 /* convert bus-width dependent algorithm code to correct endiannes */
1460 target_code
= malloc(target_code_size
);
1461 if (target_code
== NULL
)
1463 LOG_ERROR("Out of memory");
1466 cfi_fix_code_endian(target
, target_code
, target_code_src
, target_code_size
/ 4);
1468 /* allocate working area */
1469 retval
= target_alloc_working_area(target
, target_code_size
,
1470 &cfi_info
->write_algorithm
);
1471 if (retval
!= ERROR_OK
)
1477 /* write algorithm code to working area */
1478 if ((retval
= target_write_buffer(target
, cfi_info
->write_algorithm
->address
,
1479 target_code_size
, target_code
)) != ERROR_OK
)
1487 /* the following code still assumes target code is fixed 24*4 bytes */
1489 while (target_alloc_working_area_try(target
, buffer_size
, &source
) != ERROR_OK
)
1492 if (buffer_size
<= 256)
1494 /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
1495 if (cfi_info
->write_algorithm
)
1496 target_free_working_area(target
, cfi_info
->write_algorithm
);
1498 LOG_WARNING("not enough working area available, can't do block memory writes");
1499 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1503 init_reg_param(®_params
[0], "r0", 32, PARAM_OUT
);
1504 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
1505 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
1506 init_reg_param(®_params
[3], "r3", 32, PARAM_OUT
);
1507 init_reg_param(®_params
[4], "r4", 32, PARAM_OUT
);
1508 init_reg_param(®_params
[5], "r5", 32, PARAM_IN
);
1509 init_reg_param(®_params
[6], "r8", 32, PARAM_OUT
);
1510 init_reg_param(®_params
[7], "r9", 32, PARAM_OUT
);
1511 init_reg_param(®_params
[8], "r10", 32, PARAM_OUT
);
1512 init_reg_param(®_params
[9], "r11", 32, PARAM_OUT
);
1516 uint32_t thisrun_count
= (count
> buffer_size
) ? buffer_size
: count
;
1518 retvaltemp
= target_write_buffer(target
, source
->address
, thisrun_count
, buffer
);
1520 buf_set_u32(reg_params
[0].value
, 0, 32, source
->address
);
1521 buf_set_u32(reg_params
[1].value
, 0, 32, address
);
1522 buf_set_u32(reg_params
[2].value
, 0, 32, thisrun_count
/ bank
->bus_width
);
1523 buf_set_u32(reg_params
[3].value
, 0, 32, cfi_command_val(bank
, 0xA0));
1524 buf_set_u32(reg_params
[4].value
, 0, 32, cfi_command_val(bank
, 0x80));
1525 buf_set_u32(reg_params
[6].value
, 0, 32, flash_address(bank
, 0, pri_ext
->_unlock1
));
1526 buf_set_u32(reg_params
[7].value
, 0, 32, 0xaaaaaaaa);
1527 buf_set_u32(reg_params
[8].value
, 0, 32, flash_address(bank
, 0, pri_ext
->_unlock2
));
1528 buf_set_u32(reg_params
[9].value
, 0, 32, 0x55555555);
1530 retval
= target_run_algorithm(target
, 0, NULL
, 10, reg_params
,
1531 cfi_info
->write_algorithm
->address
,
1532 cfi_info
->write_algorithm
->address
+ ((target_code_size
) - 4),
1533 10000, &armv4_5_info
);
1535 status
= buf_get_u32(reg_params
[5].value
, 0, 32);
1537 if ((retval
!= ERROR_OK
) || (retvaltemp
!= ERROR_OK
) || status
!= 0x80)
1539 LOG_DEBUG("status: 0x%" PRIx32
, status
);
1540 exit_code
= ERROR_FLASH_OPERATION_FAILED
;
1544 buffer
+= thisrun_count
;
1545 address
+= thisrun_count
;
1546 count
-= thisrun_count
;
1549 target_free_all_working_areas(target
);
1551 destroy_reg_param(®_params
[0]);
1552 destroy_reg_param(®_params
[1]);
1553 destroy_reg_param(®_params
[2]);
1554 destroy_reg_param(®_params
[3]);
1555 destroy_reg_param(®_params
[4]);
1556 destroy_reg_param(®_params
[5]);
1557 destroy_reg_param(®_params
[6]);
1558 destroy_reg_param(®_params
[7]);
1559 destroy_reg_param(®_params
[8]);
1560 destroy_reg_param(®_params
[9]);
1565 static int cfi_intel_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1568 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1569 struct target
*target
= bank
->target
;
1571 cfi_intel_clear_status_register(bank
);
1572 if ((retval
= cfi_send_command(bank
, 0x40, address
)) != ERROR_OK
)
1577 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, 1, word
)) != ERROR_OK
)
1582 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != 0x80)
1584 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1589 LOG_ERROR("couldn't write word at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1590 return ERROR_FLASH_OPERATION_FAILED
;
1596 static int cfi_intel_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1599 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1600 struct target
*target
= bank
->target
;
1602 /* Calculate buffer size and boundary mask */
1603 /* buffersize is (buffer size per chip) * (number of chips) */
1604 /* bufferwsize is buffersize in words */
1605 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1606 uint32_t buffermask
= buffersize
-1;
1607 uint32_t bufferwsize
= buffersize
/ bank
->bus_width
;
1609 /* Check for valid range */
1610 if (address
& buffermask
)
1612 LOG_ERROR("Write address at base 0x%" PRIx32
", address %" PRIx32
" not aligned to 2^%d boundary",
1613 bank
->base
, address
, cfi_info
->max_buf_write_size
);
1614 return ERROR_FLASH_OPERATION_FAILED
;
1617 /* Check for valid size */
1618 if (wordcount
> bufferwsize
)
1620 LOG_ERROR("Number of data words %" PRId32
" exceeds available buffersize %" PRId32
, wordcount
, buffersize
);
1621 return ERROR_FLASH_OPERATION_FAILED
;
1624 /* Write to flash buffer */
1625 cfi_intel_clear_status_register(bank
);
1627 /* Initiate buffer operation _*/
1628 if ((retval
= cfi_send_command(bank
, 0xe8, address
)) != ERROR_OK
)
1632 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->buf_write_timeout_max
)) != 0x80)
1634 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1639 LOG_ERROR("couldn't start buffer write operation at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1640 return ERROR_FLASH_OPERATION_FAILED
;
1643 /* Write buffer wordcount-1 and data words */
1644 if ((retval
= cfi_send_command(bank
, bufferwsize
-1, address
)) != ERROR_OK
)
1649 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, bufferwsize
, word
)) != ERROR_OK
)
1654 /* Commit write operation */
1655 if ((retval
= cfi_send_command(bank
, 0xd0, address
)) != ERROR_OK
)
1659 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->buf_write_timeout_max
)) != 0x80)
1661 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1666 LOG_ERROR("Buffer write at base 0x%" PRIx32
", address %" PRIx32
" failed.", bank
->base
, address
);
1667 return ERROR_FLASH_OPERATION_FAILED
;
1673 static int cfi_spansion_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1676 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1677 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1678 struct target
*target
= bank
->target
;
1680 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1685 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
1690 if ((retval
= cfi_send_command(bank
, 0xa0, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1695 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, 1, word
)) != ERROR_OK
)
1700 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != ERROR_OK
)
1702 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1707 LOG_ERROR("couldn't write word at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1708 return ERROR_FLASH_OPERATION_FAILED
;
1714 static int cfi_spansion_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1717 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1718 struct target
*target
= bank
->target
;
1719 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1721 /* Calculate buffer size and boundary mask */
1722 /* buffersize is (buffer size per chip) * (number of chips) */
1723 /* bufferwsize is buffersize in words */
1724 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1725 uint32_t buffermask
= buffersize
-1;
1726 uint32_t bufferwsize
= buffersize
/ bank
->bus_width
;
1728 /* Check for valid range */
1729 if (address
& buffermask
)
1731 LOG_ERROR("Write address at base 0x%" PRIx32
", address %" PRIx32
" not aligned to 2^%d boundary", bank
->base
, address
, cfi_info
->max_buf_write_size
);
1732 return ERROR_FLASH_OPERATION_FAILED
;
1735 /* Check for valid size */
1736 if (wordcount
> bufferwsize
)
1738 LOG_ERROR("Number of data words %" PRId32
" exceeds available buffersize %" PRId32
, wordcount
, buffersize
);
1739 return ERROR_FLASH_OPERATION_FAILED
;
1743 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1748 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
1753 // Buffer load command
1754 if ((retval
= cfi_send_command(bank
, 0x25, address
)) != ERROR_OK
)
1759 /* Write buffer wordcount-1 and data words */
1760 if ((retval
= cfi_send_command(bank
, bufferwsize
-1, address
)) != ERROR_OK
)
1765 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, bufferwsize
, word
)) != ERROR_OK
)
1770 /* Commit write operation */
1771 if ((retval
= cfi_send_command(bank
, 0x29, address
)) != ERROR_OK
)
1776 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != ERROR_OK
)
1778 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1783 LOG_ERROR("couldn't write block at base 0x%" PRIx32
", address %" PRIx32
", size %" PRIx32
, bank
->base
, address
, bufferwsize
);
1784 return ERROR_FLASH_OPERATION_FAILED
;
1790 static int cfi_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1792 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1794 switch (cfi_info
->pri_id
)
1798 return cfi_intel_write_word(bank
, word
, address
);
1801 return cfi_spansion_write_word(bank
, word
, address
);
1804 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1808 return ERROR_FLASH_OPERATION_FAILED
;
1811 static int cfi_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1813 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1815 switch (cfi_info
->pri_id
)
1819 return cfi_intel_write_words(bank
, word
, wordcount
, address
);
1822 return cfi_spansion_write_words(bank
, word
, wordcount
, address
);
1825 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1829 return ERROR_FLASH_OPERATION_FAILED
;
1832 static int cfi_read(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
1834 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1835 struct target
*target
= bank
->target
;
1836 uint32_t address
= bank
->base
+ offset
;
1838 int align
; /* number of unaligned bytes */
1839 uint8_t current_word
[CFI_MAX_BUS_WIDTH
];
1843 LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1844 (int)count
, (unsigned)offset
);
1846 if (bank
->target
->state
!= TARGET_HALTED
)
1848 LOG_ERROR("Target not halted");
1849 return ERROR_TARGET_NOT_HALTED
;
1852 if (offset
+ count
> bank
->size
)
1853 return ERROR_FLASH_DST_OUT_OF_BANK
;
1855 if (cfi_info
->qry
[0] != 'Q')
1856 return ERROR_FLASH_BANK_NOT_PROBED
;
1858 /* start at the first byte of the first word (bus_width size) */
1859 read_p
= address
& ~(bank
->bus_width
- 1);
1860 if ((align
= address
- read_p
) != 0)
1862 LOG_INFO("Fixup %d unaligned read head bytes", align
);
1864 /* read a complete word from flash */
1865 if ((retval
= target_read_memory(target
, read_p
, bank
->bus_width
, 1, current_word
)) != ERROR_OK
)
1868 /* take only bytes we need */
1869 for (i
= align
; (i
< bank
->bus_width
) && (count
> 0); i
++, count
--)
1870 *buffer
++ = current_word
[i
];
1872 read_p
+= bank
->bus_width
;
1875 align
= count
/ bank
->bus_width
;
1878 if ((retval
= target_read_memory(target
, read_p
, bank
->bus_width
, align
, buffer
)) != ERROR_OK
)
1881 read_p
+= align
* bank
->bus_width
;
1882 buffer
+= align
* bank
->bus_width
;
1883 count
-= align
* bank
->bus_width
;
1888 LOG_INFO("Fixup %d unaligned read tail bytes", count
);
1890 /* read a complete word from flash */
1891 if ((retval
= target_read_memory(target
, read_p
, bank
->bus_width
, 1, current_word
)) != ERROR_OK
)
1894 /* take only bytes we need */
1895 for (i
= 0; (i
< bank
->bus_width
) && (count
> 0); i
++, count
--)
1896 *buffer
++ = current_word
[i
];
1902 static int cfi_write(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
1904 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1905 struct target
*target
= bank
->target
;
1906 uint32_t address
= bank
->base
+ offset
; /* address of first byte to be programmed */
1908 int align
; /* number of unaligned bytes */
1909 int blk_count
; /* number of bus_width bytes for block copy */
1910 uint8_t current_word
[CFI_MAX_BUS_WIDTH
* 4]; /* word (bus_width size) currently being programmed */
1914 if (bank
->target
->state
!= TARGET_HALTED
)
1916 LOG_ERROR("Target not halted");
1917 return ERROR_TARGET_NOT_HALTED
;
1920 if (offset
+ count
> bank
->size
)
1921 return ERROR_FLASH_DST_OUT_OF_BANK
;
1923 if (cfi_info
->qry
[0] != 'Q')
1924 return ERROR_FLASH_BANK_NOT_PROBED
;
1926 /* start at the first byte of the first word (bus_width size) */
1927 write_p
= address
& ~(bank
->bus_width
- 1);
1928 if ((align
= address
- write_p
) != 0)
1930 LOG_INFO("Fixup %d unaligned head bytes", align
);
1932 /* read a complete word from flash */
1933 if ((retval
= target_read_memory(target
, write_p
, bank
->bus_width
, 1, current_word
)) != ERROR_OK
)
1936 /* replace only bytes that must be written */
1937 for (i
= align
; (i
< bank
->bus_width
) && (count
> 0); i
++, count
--)
1938 current_word
[i
] = *buffer
++;
1940 retval
= cfi_write_word(bank
, current_word
, write_p
);
1941 if (retval
!= ERROR_OK
)
1943 write_p
+= bank
->bus_width
;
1946 /* handle blocks of bus_size aligned bytes */
1947 blk_count
= count
& ~(bank
->bus_width
- 1); /* round down, leave tail bytes */
1948 switch (cfi_info
->pri_id
)
1950 /* try block writes (fails without working area) */
1953 retval
= cfi_intel_write_block(bank
, buffer
, write_p
, blk_count
);
1956 retval
= cfi_spansion_write_block(bank
, buffer
, write_p
, blk_count
);
1959 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1960 retval
= ERROR_FLASH_OPERATION_FAILED
;
1963 if (retval
== ERROR_OK
)
1965 /* Increment pointers and decrease count on succesful block write */
1966 buffer
+= blk_count
;
1967 write_p
+= blk_count
;
1972 if (retval
== ERROR_TARGET_RESOURCE_NOT_AVAILABLE
)
1974 /* Calculate buffer size and boundary mask */
1975 /* buffersize is (buffer size per chip) * (number of chips) */
1976 /* bufferwsize is buffersize in words */
1977 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1978 uint32_t buffermask
= buffersize
-1;
1979 uint32_t bufferwsize
= buffersize
/ bank
->bus_width
;
1981 /* fall back to memory writes */
1982 while (count
>= (uint32_t)bank
->bus_width
)
1985 if ((write_p
& 0xff) == 0)
1987 LOG_INFO("Programming at %08" PRIx32
", count %08" PRIx32
" bytes remaining", write_p
, count
);
1990 if ((bufferwsize
> 0) && (count
>= buffersize
) && !(write_p
& buffermask
))
1992 retval
= cfi_write_words(bank
, buffer
, bufferwsize
, write_p
);
1993 if (retval
== ERROR_OK
)
1995 buffer
+= buffersize
;
1996 write_p
+= buffersize
;
1997 count
-= buffersize
;
2001 /* try the slow way? */
2004 for (i
= 0; i
< bank
->bus_width
; i
++)
2005 current_word
[i
] = *buffer
++;
2007 retval
= cfi_write_word(bank
, current_word
, write_p
);
2008 if (retval
!= ERROR_OK
)
2011 write_p
+= bank
->bus_width
;
2012 count
-= bank
->bus_width
;
2020 /* return to read array mode, so we can read from flash again for padding */
2021 if ((retval
= cfi_reset(bank
)) != ERROR_OK
)
2026 /* handle unaligned tail bytes */
2029 LOG_INFO("Fixup %" PRId32
" unaligned tail bytes", count
);
2031 /* read a complete word from flash */
2032 if ((retval
= target_read_memory(target
, write_p
, bank
->bus_width
, 1, current_word
)) != ERROR_OK
)
2035 /* replace only bytes that must be written */
2036 for (i
= 0; (i
< bank
->bus_width
) && (count
> 0); i
++, count
--)
2037 current_word
[i
] = *buffer
++;
2039 retval
= cfi_write_word(bank
, current_word
, write_p
);
2040 if (retval
!= ERROR_OK
)
2044 /* return to read array mode */
2045 return cfi_reset(bank
);
2048 static void cfi_fixup_atmel_reversed_erase_regions(struct flash_bank
*bank
, void *param
)
2051 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2052 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2054 pri_ext
->_reversed_geometry
= 1;
2057 static void cfi_fixup_0002_erase_regions(struct flash_bank
*bank
, void *param
)
2060 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2061 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2064 if ((pri_ext
->_reversed_geometry
) || (pri_ext
->TopBottom
== 3))
2066 LOG_DEBUG("swapping reversed erase region information on cmdset 0002 device");
2068 for (i
= 0; i
< cfi_info
->num_erase_regions
/ 2; i
++)
2070 int j
= (cfi_info
->num_erase_regions
- 1) - i
;
2073 swap
= cfi_info
->erase_region_info
[i
];
2074 cfi_info
->erase_region_info
[i
] = cfi_info
->erase_region_info
[j
];
2075 cfi_info
->erase_region_info
[j
] = swap
;
2080 static void cfi_fixup_0002_unlock_addresses(struct flash_bank
*bank
, void *param
)
2082 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2083 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2084 struct cfi_unlock_addresses
*unlock_addresses
= param
;
2086 pri_ext
->_unlock1
= unlock_addresses
->unlock1
;
2087 pri_ext
->_unlock2
= unlock_addresses
->unlock2
;
2091 static int cfi_query_string(struct flash_bank
*bank
, int address
)
2093 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2096 if ((retval
= cfi_send_command(bank
, 0x98, flash_address(bank
, 0, address
))) != ERROR_OK
)
2101 cfi_info
->qry
[0] = cfi_query_u8(bank
, 0, 0x10);
2102 cfi_info
->qry
[1] = cfi_query_u8(bank
, 0, 0x11);
2103 cfi_info
->qry
[2] = cfi_query_u8(bank
, 0, 0x12);
2105 LOG_DEBUG("CFI qry returned: 0x%2.2x 0x%2.2x 0x%2.2x", cfi_info
->qry
[0], cfi_info
->qry
[1], cfi_info
->qry
[2]);
2107 if ((cfi_info
->qry
[0] != 'Q') || (cfi_info
->qry
[1] != 'R') || (cfi_info
->qry
[2] != 'Y'))
2109 if ((retval
= cfi_reset(bank
)) != ERROR_OK
)
2113 LOG_ERROR("Could not probe bank: no QRY");
2114 return ERROR_FLASH_BANK_INVALID
;
2120 static int cfi_probe(struct flash_bank
*bank
)
2122 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2123 struct target
*target
= bank
->target
;
2124 int num_sectors
= 0;
2127 uint32_t unlock1
= 0x555;
2128 uint32_t unlock2
= 0x2aa;
2130 uint8_t value_buf0
[CFI_MAX_BUS_WIDTH
], value_buf1
[CFI_MAX_BUS_WIDTH
];
2132 if (bank
->target
->state
!= TARGET_HALTED
)
2134 LOG_ERROR("Target not halted");
2135 return ERROR_TARGET_NOT_HALTED
;
2138 cfi_info
->probed
= 0;
2141 free(bank
->sectors
);
2142 bank
->sectors
= NULL
;
2144 if(cfi_info
->erase_region_info
)
2146 free(cfi_info
->erase_region_info
);
2147 cfi_info
->erase_region_info
= NULL
;
2150 /* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,
2151 * while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa
2153 if (cfi_info
->jedec_probe
)
2159 /* switch to read identifier codes mode ("AUTOSELECT") */
2160 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, unlock1
))) != ERROR_OK
)
2164 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, unlock2
))) != ERROR_OK
)
2168 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, unlock1
))) != ERROR_OK
)
2173 if ((retval
= target_read_memory(target
, flash_address(bank
, 0, 0x00), bank
->bus_width
, 1, value_buf0
)) != ERROR_OK
)
2177 if ((retval
= target_read_memory(target
, flash_address(bank
, 0, 0x01), bank
->bus_width
, 1, value_buf1
)) != ERROR_OK
)
2181 switch (bank
->chip_width
) {
2183 cfi_info
->manufacturer
= *value_buf0
;
2184 cfi_info
->device_id
= *value_buf1
;
2187 cfi_info
->manufacturer
= target_buffer_get_u16(target
, value_buf0
);
2188 cfi_info
->device_id
= target_buffer_get_u16(target
, value_buf1
);
2191 cfi_info
->manufacturer
= target_buffer_get_u32(target
, value_buf0
);
2192 cfi_info
->device_id
= target_buffer_get_u32(target
, value_buf1
);
2195 LOG_ERROR("Unsupported bank chipwidth %d, can't probe memory", bank
->chip_width
);
2196 return ERROR_FLASH_OPERATION_FAILED
;
2199 LOG_INFO("Flash Manufacturer/Device: 0x%04x 0x%04x", cfi_info
->manufacturer
, cfi_info
->device_id
);
2200 /* switch back to read array mode */
2201 if ((retval
= cfi_reset(bank
)) != ERROR_OK
)
2206 /* check device/manufacturer ID for known non-CFI flashes. */
2207 cfi_fixup_non_cfi(bank
);
2209 /* query only if this is a CFI compatible flash,
2210 * otherwise the relevant info has already been filled in
2212 if (cfi_info
->not_cfi
== 0)
2216 /* enter CFI query mode
2217 * according to JEDEC Standard No. 68.01,
2218 * a single bus sequence with address = 0x55, data = 0x98 should put
2219 * the device into CFI query mode.
2221 * SST flashes clearly violate this, and we will consider them incompatbile for now
2224 retval
= cfi_query_string(bank
, 0x55);
2225 if (retval
!= ERROR_OK
)
2228 * Spansion S29WS-N CFI query fix is to try 0x555 if 0x55 fails. Should
2229 * be harmless enough:
2231 * http://www.infradead.org/pipermail/linux-mtd/2005-September/013618.html
2233 LOG_USER("Try workaround w/0x555 instead of 0x55 to get QRY.");
2234 retval
= cfi_query_string(bank
, 0x555);
2236 if (retval
!= ERROR_OK
)
2239 cfi_info
->pri_id
= cfi_query_u16(bank
, 0, 0x13);
2240 cfi_info
->pri_addr
= cfi_query_u16(bank
, 0, 0x15);
2241 cfi_info
->alt_id
= cfi_query_u16(bank
, 0, 0x17);
2242 cfi_info
->alt_addr
= cfi_query_u16(bank
, 0, 0x19);
2244 LOG_DEBUG("qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", cfi_info
->qry
[0], cfi_info
->qry
[1], cfi_info
->qry
[2], cfi_info
->pri_id
, cfi_info
->pri_addr
, cfi_info
->alt_id
, cfi_info
->alt_addr
);
2246 cfi_info
->vcc_min
= cfi_query_u8(bank
, 0, 0x1b);
2247 cfi_info
->vcc_max
= cfi_query_u8(bank
, 0, 0x1c);
2248 cfi_info
->vpp_min
= cfi_query_u8(bank
, 0, 0x1d);
2249 cfi_info
->vpp_max
= cfi_query_u8(bank
, 0, 0x1e);
2250 cfi_info
->word_write_timeout_typ
= cfi_query_u8(bank
, 0, 0x1f);
2251 cfi_info
->buf_write_timeout_typ
= cfi_query_u8(bank
, 0, 0x20);
2252 cfi_info
->block_erase_timeout_typ
= cfi_query_u8(bank
, 0, 0x21);
2253 cfi_info
->chip_erase_timeout_typ
= cfi_query_u8(bank
, 0, 0x22);
2254 cfi_info
->word_write_timeout_max
= cfi_query_u8(bank
, 0, 0x23);
2255 cfi_info
->buf_write_timeout_max
= cfi_query_u8(bank
, 0, 0x24);
2256 cfi_info
->block_erase_timeout_max
= cfi_query_u8(bank
, 0, 0x25);
2257 cfi_info
->chip_erase_timeout_max
= cfi_query_u8(bank
, 0, 0x26);
2259 LOG_DEBUG("Vcc min: %x.%x, Vcc max: %x.%x, Vpp min: %u.%x, Vpp max: %u.%x",
2260 (cfi_info
->vcc_min
& 0xf0) >> 4, cfi_info
->vcc_min
& 0x0f,
2261 (cfi_info
->vcc_max
& 0xf0) >> 4, cfi_info
->vcc_max
& 0x0f,
2262 (cfi_info
->vpp_min
& 0xf0) >> 4, cfi_info
->vpp_min
& 0x0f,
2263 (cfi_info
->vpp_max
& 0xf0) >> 4, cfi_info
->vpp_max
& 0x0f);
2264 LOG_DEBUG("typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u", 1 << cfi_info
->word_write_timeout_typ
, 1 << cfi_info
->buf_write_timeout_typ
,
2265 1 << cfi_info
->block_erase_timeout_typ
, 1 << cfi_info
->chip_erase_timeout_typ
);
2266 LOG_DEBUG("max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u", (1 << cfi_info
->word_write_timeout_max
) * (1 << cfi_info
->word_write_timeout_typ
),
2267 (1 << cfi_info
->buf_write_timeout_max
) * (1 << cfi_info
->buf_write_timeout_typ
),
2268 (1 << cfi_info
->block_erase_timeout_max
) * (1 << cfi_info
->block_erase_timeout_typ
),
2269 (1 << cfi_info
->chip_erase_timeout_max
) * (1 << cfi_info
->chip_erase_timeout_typ
));
2271 cfi_info
->dev_size
= 1 << cfi_query_u8(bank
, 0, 0x27);
2272 cfi_info
->interface_desc
= cfi_query_u16(bank
, 0, 0x28);
2273 cfi_info
->max_buf_write_size
= cfi_query_u16(bank
, 0, 0x2a);
2274 cfi_info
->num_erase_regions
= cfi_query_u8(bank
, 0, 0x2c);
2276 LOG_DEBUG("size: 0x%" PRIx32
", interface desc: %i, max buffer write size: %x", cfi_info
->dev_size
, cfi_info
->interface_desc
, (1 << cfi_info
->max_buf_write_size
));
2278 if (cfi_info
->num_erase_regions
)
2280 cfi_info
->erase_region_info
= malloc(4 * cfi_info
->num_erase_regions
);
2281 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2283 cfi_info
->erase_region_info
[i
] = cfi_query_u32(bank
, 0, 0x2d + (4 * i
));
2284 LOG_DEBUG("erase region[%i]: %" PRIu32
" blocks of size 0x%" PRIx32
"",
2286 (cfi_info
->erase_region_info
[i
] & 0xffff) + 1,
2287 (cfi_info
->erase_region_info
[i
] >> 16) * 256);
2292 cfi_info
->erase_region_info
= NULL
;
2295 /* We need to read the primary algorithm extended query table before calculating
2296 * the sector layout to be able to apply fixups
2298 switch (cfi_info
->pri_id
)
2300 /* Intel command set (standard and extended) */
2303 cfi_read_intel_pri_ext(bank
);
2305 /* AMD/Spansion, Atmel, ... command set */
2307 cfi_info
->status_poll_mask
= CFI_STATUS_POLL_MASK_DQ5_DQ6_DQ7
; /* default for all CFI flashs */
2308 cfi_read_0002_pri_ext(bank
);
2311 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2315 /* return to read array mode
2316 * we use both reset commands, as some Intel flashes fail to recognize the 0xF0 command
2318 if ((retval
= cfi_reset(bank
)) != ERROR_OK
)
2322 } /* end CFI case */
2324 /* apply fixups depending on the primary command set */
2325 switch (cfi_info
->pri_id
)
2327 /* Intel command set (standard and extended) */
2330 cfi_fixup(bank
, cfi_0001_fixups
);
2332 /* AMD/Spansion, Atmel, ... command set */
2334 cfi_fixup(bank
, cfi_0002_fixups
);
2337 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2341 if ((cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
) != bank
->size
)
2343 LOG_WARNING("configuration specifies 0x%" PRIx32
" size, but a 0x%" PRIx32
" size flash was found", bank
->size
, cfi_info
->dev_size
);
2346 if (cfi_info
->num_erase_regions
== 0)
2348 /* a device might have only one erase block, spanning the whole device */
2349 bank
->num_sectors
= 1;
2350 bank
->sectors
= malloc(sizeof(struct flash_sector
));
2352 bank
->sectors
[sector
].offset
= 0x0;
2353 bank
->sectors
[sector
].size
= bank
->size
;
2354 bank
->sectors
[sector
].is_erased
= -1;
2355 bank
->sectors
[sector
].is_protected
= -1;
2359 uint32_t offset
= 0;
2361 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2363 num_sectors
+= (cfi_info
->erase_region_info
[i
] & 0xffff) + 1;
2366 bank
->num_sectors
= num_sectors
;
2367 bank
->sectors
= malloc(sizeof(struct flash_sector
) * num_sectors
);
2369 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2372 for (j
= 0; j
< (cfi_info
->erase_region_info
[i
] & 0xffff) + 1; j
++)
2374 bank
->sectors
[sector
].offset
= offset
;
2375 bank
->sectors
[sector
].size
= ((cfi_info
->erase_region_info
[i
] >> 16) * 256) * bank
->bus_width
/ bank
->chip_width
;
2376 offset
+= bank
->sectors
[sector
].size
;
2377 bank
->sectors
[sector
].is_erased
= -1;
2378 bank
->sectors
[sector
].is_protected
= -1;
2382 if (offset
!= (cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
))
2384 LOG_WARNING("CFI size is 0x%" PRIx32
", but total sector size is 0x%" PRIx32
"", \
2385 (cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
), offset
);
2389 cfi_info
->probed
= 1;
2394 static int cfi_auto_probe(struct flash_bank
*bank
)
2396 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2397 if (cfi_info
->probed
)
2399 return cfi_probe(bank
);
2402 static int cfi_intel_protect_check(struct flash_bank
*bank
)
2405 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2406 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2409 /* check if block lock bits are supported on this device */
2410 if (!(pri_ext
->blk_status_reg_mask
& 0x1))
2411 return ERROR_FLASH_OPERATION_FAILED
;
2413 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
2418 for (i
= 0; i
< bank
->num_sectors
; i
++)
2420 uint8_t block_status
= cfi_get_u8(bank
, i
, 0x2);
2422 if (block_status
& 1)
2423 bank
->sectors
[i
].is_protected
= 1;
2425 bank
->sectors
[i
].is_protected
= 0;
2428 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
2431 static int cfi_spansion_protect_check(struct flash_bank
*bank
)
2434 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2435 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2438 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
2443 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
2448 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
2453 for (i
= 0; i
< bank
->num_sectors
; i
++)
2455 uint8_t block_status
= cfi_get_u8(bank
, i
, 0x2);
2457 if (block_status
& 1)
2458 bank
->sectors
[i
].is_protected
= 1;
2460 bank
->sectors
[i
].is_protected
= 0;
2463 return cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0));
2466 static int cfi_protect_check(struct flash_bank
*bank
)
2468 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2470 if (bank
->target
->state
!= TARGET_HALTED
)
2472 LOG_ERROR("Target not halted");
2473 return ERROR_TARGET_NOT_HALTED
;
2476 if (cfi_info
->qry
[0] != 'Q')
2477 return ERROR_FLASH_BANK_NOT_PROBED
;
2479 switch (cfi_info
->pri_id
)
2483 return cfi_intel_protect_check(bank
);
2486 return cfi_spansion_protect_check(bank
);
2489 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2496 static int cfi_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
2499 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2501 if (cfi_info
->qry
[0] == (char)-1)
2503 printed
= snprintf(buf
, buf_size
, "\ncfi flash bank not probed yet\n");
2507 if (cfi_info
->not_cfi
== 0)
2508 printed
= snprintf(buf
, buf_size
, "\ncfi information:\n");
2510 printed
= snprintf(buf
, buf_size
, "\nnon-cfi flash:\n");
2512 buf_size
-= printed
;
2514 printed
= snprintf(buf
, buf_size
, "\nmfr: 0x%4.4x, id:0x%4.4x\n",
2515 cfi_info
->manufacturer
, cfi_info
->device_id
);
2517 buf_size
-= printed
;
2519 if (cfi_info
->not_cfi
== 0)
2521 printed
= snprintf(buf
, buf_size
, "qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x\n", cfi_info
->qry
[0], cfi_info
->qry
[1], cfi_info
->qry
[2], cfi_info
->pri_id
, cfi_info
->pri_addr
, cfi_info
->alt_id
, cfi_info
->alt_addr
);
2523 buf_size
-= printed
;
2525 printed
= snprintf(buf
, buf_size
, "Vcc min: %x.%x, Vcc max: %x.%x, Vpp min: %u.%x, Vpp max: %u.%x\n",
2526 (cfi_info
->vcc_min
& 0xf0) >> 4, cfi_info
->vcc_min
& 0x0f,
2527 (cfi_info
->vcc_max
& 0xf0) >> 4, cfi_info
->vcc_max
& 0x0f,
2528 (cfi_info
->vpp_min
& 0xf0) >> 4, cfi_info
->vpp_min
& 0x0f,
2529 (cfi_info
->vpp_max
& 0xf0) >> 4, cfi_info
->vpp_max
& 0x0f);
2531 buf_size
-= printed
;
2533 printed
= snprintf(buf
, buf_size
, "typ. word write timeout: %u, typ. buf write timeout: %u, typ. block erase timeout: %u, typ. chip erase timeout: %u\n",
2534 1 << cfi_info
->word_write_timeout_typ
,
2535 1 << cfi_info
->buf_write_timeout_typ
,
2536 1 << cfi_info
->block_erase_timeout_typ
,
2537 1 << cfi_info
->chip_erase_timeout_typ
);
2539 buf_size
-= printed
;
2541 printed
= snprintf(buf
, buf_size
, "max. word write timeout: %u, max. buf write timeout: %u, max. block erase timeout: %u, max. chip erase timeout: %u\n",
2542 (1 << cfi_info
->word_write_timeout_max
) * (1 << cfi_info
->word_write_timeout_typ
),
2543 (1 << cfi_info
->buf_write_timeout_max
) * (1 << cfi_info
->buf_write_timeout_typ
),
2544 (1 << cfi_info
->block_erase_timeout_max
) * (1 << cfi_info
->block_erase_timeout_typ
),
2545 (1 << cfi_info
->chip_erase_timeout_max
) * (1 << cfi_info
->chip_erase_timeout_typ
));
2547 buf_size
-= printed
;
2549 printed
= snprintf(buf
, buf_size
, "size: 0x%" PRIx32
", interface desc: %i, max buffer write size: %x\n",
2551 cfi_info
->interface_desc
,
2552 1 << cfi_info
->max_buf_write_size
);
2554 buf_size
-= printed
;
2556 switch (cfi_info
->pri_id
)
2560 cfi_intel_info(bank
, buf
, buf_size
);
2563 cfi_spansion_info(bank
, buf
, buf_size
);
2566 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2574 struct flash_driver cfi_flash
= {
2576 .flash_bank_command
= cfi_flash_bank_command
,
2578 .protect
= cfi_protect
,
2582 .auto_probe
= cfi_auto_probe
,
2583 /* FIXME: access flash at bus_width size */
2584 .erase_check
= default_flash_blank_check
,
2585 .protect_check
= cfi_protect_check
,
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