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> *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
30 #include <target/arm.h>
31 #include <helper/binarybuffer.h>
32 #include <target/algorithm.h>
35 #define CFI_MAX_BUS_WIDTH 4
36 #define CFI_MAX_CHIP_WIDTH 4
38 /* defines internal maximum size for code fragment in cfi_intel_write_block() */
39 #define CFI_MAX_INTEL_CODESIZE 256
41 static struct cfi_unlock_addresses cfi_unlock_addresses
[] =
43 [CFI_UNLOCK_555_2AA
] = { .unlock1
= 0x555, .unlock2
= 0x2aa },
44 [CFI_UNLOCK_5555_2AAA
] = { .unlock1
= 0x5555, .unlock2
= 0x2aaa },
47 /* CFI fixups foward declarations */
48 static void cfi_fixup_0002_erase_regions(struct flash_bank
*flash
, void *param
);
49 static void cfi_fixup_0002_unlock_addresses(struct flash_bank
*flash
, void *param
);
50 static void cfi_fixup_atmel_reversed_erase_regions(struct flash_bank
*flash
, void *param
);
52 /* fixup after reading cmdset 0002 primary query table */
53 static const struct cfi_fixup cfi_0002_fixups
[] = {
54 {CFI_MFR_SST
, 0x00D4, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
55 {CFI_MFR_SST
, 0x00D5, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
56 {CFI_MFR_SST
, 0x00D6, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
57 {CFI_MFR_SST
, 0x00D7, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
58 {CFI_MFR_SST
, 0x2780, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
59 {CFI_MFR_ATMEL
, 0x00C8, cfi_fixup_atmel_reversed_erase_regions
, NULL
},
60 {CFI_MFR_FUJITSU
, 0x226b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_5555_2AAA
]},
61 {CFI_MFR_AMIC
, 0xb31a, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
62 {CFI_MFR_MX
, 0x225b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
63 {CFI_MFR_AMD
, 0x225b, cfi_fixup_0002_unlock_addresses
, &cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
]},
64 {CFI_MFR_ANY
, CFI_ID_ANY
, cfi_fixup_0002_erase_regions
, NULL
},
68 /* fixup after reading cmdset 0001 primary query table */
69 static const struct cfi_fixup cfi_0001_fixups
[] = {
73 static void cfi_fixup(struct flash_bank
*bank
, const struct cfi_fixup
*fixups
)
75 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
76 const struct cfi_fixup
*f
;
78 for (f
= fixups
; f
->fixup
; f
++)
80 if (((f
->mfr
== CFI_MFR_ANY
) || (f
->mfr
== cfi_info
->manufacturer
)) &&
81 ((f
->id
== CFI_ID_ANY
) || (f
->id
== cfi_info
->device_id
)))
83 f
->fixup(bank
, f
->param
);
88 /* inline uint32_t flash_address(struct flash_bank *bank, int sector, uint32_t offset) */
89 static __inline__
uint32_t flash_address(struct flash_bank
*bank
, int sector
, uint32_t offset
)
91 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
93 if (cfi_info
->x16_as_x8
) offset
*= 2;
95 /* while the sector list isn't built, only accesses to sector 0 work */
97 return bank
->base
+ offset
* bank
->bus_width
;
102 LOG_ERROR("BUG: sector list not yet built");
105 return bank
->base
+ bank
->sectors
[sector
].offset
+ offset
* bank
->bus_width
;
110 static void cfi_command(struct flash_bank
*bank
, uint8_t cmd
, uint8_t *cmd_buf
)
114 /* clear whole buffer, to ensure bits that exceed the bus_width
117 for (i
= 0; i
< CFI_MAX_BUS_WIDTH
; i
++)
120 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
122 for (i
= bank
->bus_width
; i
> 0; i
--)
124 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
129 for (i
= 1; i
<= bank
->bus_width
; i
++)
131 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
136 static int cfi_send_command(struct flash_bank
*bank
, uint8_t cmd
, uint32_t address
)
138 uint8_t command
[CFI_MAX_BUS_WIDTH
];
140 cfi_command(bank
, cmd
, command
);
141 return target_write_memory(bank
->target
, address
, bank
->bus_width
, 1, command
);
144 /* read unsigned 8-bit value from the bank
145 * flash banks are expected to be made of similar chips
146 * the query result should be the same for all
148 static uint8_t cfi_query_u8(struct flash_bank
*bank
, int sector
, uint32_t offset
)
150 struct target
*target
= bank
->target
;
151 uint8_t data
[CFI_MAX_BUS_WIDTH
];
153 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 1, data
);
155 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
158 return data
[bank
->bus_width
- 1];
161 /* read unsigned 8-bit value from the bank
162 * in case of a bank made of multiple chips,
163 * the individual values are ORed
165 static uint8_t cfi_get_u8(struct flash_bank
*bank
, int sector
, uint32_t offset
)
167 struct target
*target
= bank
->target
;
168 uint8_t data
[CFI_MAX_BUS_WIDTH
];
171 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 1, data
);
173 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
175 for (i
= 0; i
< bank
->bus_width
/ bank
->chip_width
; i
++)
183 for (i
= 0; i
< bank
->bus_width
/ bank
->chip_width
; i
++)
184 value
|= data
[bank
->bus_width
- 1 - i
];
190 static uint16_t cfi_query_u16(struct flash_bank
*bank
, int sector
, uint32_t offset
)
192 struct target
*target
= bank
->target
;
193 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
194 uint8_t data
[CFI_MAX_BUS_WIDTH
* 2];
196 if (cfi_info
->x16_as_x8
)
199 for (i
= 0;i
< 2;i
++)
200 target_read_memory(target
, flash_address(bank
, sector
, offset
+ i
), bank
->bus_width
, 1,
201 &data
[i
*bank
->bus_width
]);
204 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 2, data
);
206 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
207 return data
[0] | data
[bank
->bus_width
] << 8;
209 return data
[bank
->bus_width
- 1] | data
[(2 * bank
->bus_width
) - 1] << 8;
212 static uint32_t cfi_query_u32(struct flash_bank
*bank
, int sector
, uint32_t offset
)
214 struct target
*target
= bank
->target
;
215 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
216 uint8_t data
[CFI_MAX_BUS_WIDTH
* 4];
218 if (cfi_info
->x16_as_x8
)
221 for (i
= 0;i
< 4;i
++)
222 target_read_memory(target
, flash_address(bank
, sector
, offset
+ i
), bank
->bus_width
, 1,
223 &data
[i
*bank
->bus_width
]);
226 target_read_memory(target
, flash_address(bank
, sector
, offset
), bank
->bus_width
, 4, data
);
228 if (bank
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
229 return data
[0] | data
[bank
->bus_width
] << 8 | data
[bank
->bus_width
* 2] << 16 | data
[bank
->bus_width
* 3] << 24;
231 return data
[bank
->bus_width
- 1] | data
[(2* bank
->bus_width
) - 1] << 8 |
232 data
[(3 * bank
->bus_width
) - 1] << 16 | data
[(4 * bank
->bus_width
) - 1] << 24;
235 static void cfi_intel_clear_status_register(struct flash_bank
*bank
)
237 struct target
*target
= bank
->target
;
239 if (target
->state
!= TARGET_HALTED
)
241 LOG_ERROR("BUG: attempted to clear status register while target wasn't halted");
245 cfi_send_command(bank
, 0x50, flash_address(bank
, 0, 0x0));
248 static uint8_t cfi_intel_wait_status_busy(struct flash_bank
*bank
, int timeout
)
252 while ((!((status
= cfi_get_u8(bank
, 0, 0x0)) & 0x80)) && (timeout
-- > 0))
254 LOG_DEBUG("status: 0x%x", status
);
258 /* mask out bit 0 (reserved) */
259 status
= status
& 0xfe;
261 LOG_DEBUG("status: 0x%x", status
);
263 if ((status
& 0x80) != 0x80)
265 LOG_ERROR("timeout while waiting for WSM to become ready");
267 else if (status
!= 0x80)
269 LOG_ERROR("status register: 0x%x", status
);
271 LOG_ERROR("Block Lock-Bit Detected, Operation Abort");
273 LOG_ERROR("Program suspended");
275 LOG_ERROR("Low Programming Voltage Detected, Operation Aborted");
277 LOG_ERROR("Program Error / Error in Setting Lock-Bit");
279 LOG_ERROR("Error in Block Erasure or Clear Lock-Bits");
281 LOG_ERROR("Block Erase Suspended");
283 cfi_intel_clear_status_register(bank
);
289 static int cfi_spansion_wait_status_busy(struct flash_bank
*bank
, int timeout
)
291 uint8_t status
, oldstatus
;
292 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
294 oldstatus
= cfi_get_u8(bank
, 0, 0x0);
297 status
= cfi_get_u8(bank
, 0, 0x0);
298 if ((status
^ oldstatus
) & 0x40) {
299 if (status
& cfi_info
->status_poll_mask
& 0x20) {
300 oldstatus
= cfi_get_u8(bank
, 0, 0x0);
301 status
= cfi_get_u8(bank
, 0, 0x0);
302 if ((status
^ oldstatus
) & 0x40) {
303 LOG_ERROR("dq5 timeout, status: 0x%x", status
);
304 return(ERROR_FLASH_OPERATION_FAILED
);
306 LOG_DEBUG("status: 0x%x", status
);
310 } else { /* no toggle: finished, OK */
311 LOG_DEBUG("status: 0x%x", status
);
317 } while (timeout
-- > 0);
319 LOG_ERROR("timeout, status: 0x%x", status
);
321 return(ERROR_FLASH_BUSY
);
324 static int cfi_read_intel_pri_ext(struct flash_bank
*bank
)
327 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
328 struct cfi_intel_pri_ext
*pri_ext
= malloc(sizeof(struct cfi_intel_pri_ext
));
330 cfi_info
->pri_ext
= pri_ext
;
332 pri_ext
->pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
333 pri_ext
->pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
334 pri_ext
->pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
336 if ((pri_ext
->pri
[0] != 'P') || (pri_ext
->pri
[1] != 'R') || (pri_ext
->pri
[2] != 'I'))
338 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
342 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
346 LOG_ERROR("Could not read bank flash bank information");
347 return ERROR_FLASH_BANK_INVALID
;
350 pri_ext
->major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
351 pri_ext
->minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
353 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
);
355 pri_ext
->feature_support
= cfi_query_u32(bank
, 0, cfi_info
->pri_addr
+ 5);
356 pri_ext
->suspend_cmd_support
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 9);
357 pri_ext
->blk_status_reg_mask
= cfi_query_u16(bank
, 0, cfi_info
->pri_addr
+ 0xa);
359 LOG_DEBUG("feature_support: 0x%" PRIx32
", suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x",
360 pri_ext
->feature_support
,
361 pri_ext
->suspend_cmd_support
,
362 pri_ext
->blk_status_reg_mask
);
364 pri_ext
->vcc_optimal
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xc);
365 pri_ext
->vpp_optimal
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xd);
367 LOG_DEBUG("Vcc opt: %x.%x, Vpp opt: %u.%x",
368 (pri_ext
->vcc_optimal
& 0xf0) >> 4, pri_ext
->vcc_optimal
& 0x0f,
369 (pri_ext
->vpp_optimal
& 0xf0) >> 4, pri_ext
->vpp_optimal
& 0x0f);
371 pri_ext
->num_protection_fields
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0xe);
372 if (pri_ext
->num_protection_fields
!= 1)
374 LOG_WARNING("expected one protection register field, but found %i", pri_ext
->num_protection_fields
);
377 pri_ext
->prot_reg_addr
= cfi_query_u16(bank
, 0, cfi_info
->pri_addr
+ 0xf);
378 pri_ext
->fact_prot_reg_size
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0x11);
379 pri_ext
->user_prot_reg_size
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0x12);
381 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
);
386 static int cfi_read_spansion_pri_ext(struct flash_bank
*bank
)
389 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
390 struct cfi_spansion_pri_ext
*pri_ext
= malloc(sizeof(struct cfi_spansion_pri_ext
));
392 cfi_info
->pri_ext
= pri_ext
;
394 pri_ext
->pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
395 pri_ext
->pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
396 pri_ext
->pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
398 if ((pri_ext
->pri
[0] != 'P') || (pri_ext
->pri
[1] != 'R') || (pri_ext
->pri
[2] != 'I'))
400 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
404 LOG_ERROR("Could not read spansion bank information");
405 return ERROR_FLASH_BANK_INVALID
;
408 pri_ext
->major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
409 pri_ext
->minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
411 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
);
413 pri_ext
->SiliconRevision
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 5);
414 pri_ext
->EraseSuspend
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 6);
415 pri_ext
->BlkProt
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 7);
416 pri_ext
->TmpBlkUnprotect
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 8);
417 pri_ext
->BlkProtUnprot
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 9);
418 pri_ext
->SimultaneousOps
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 10);
419 pri_ext
->BurstMode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 11);
420 pri_ext
->PageMode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 12);
421 pri_ext
->VppMin
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 13);
422 pri_ext
->VppMax
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 14);
423 pri_ext
->TopBottom
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 15);
425 LOG_DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext
->SiliconRevision
,
426 pri_ext
->EraseSuspend
, pri_ext
->BlkProt
);
428 LOG_DEBUG("Temporary Unprotect: 0x%x, Block Protect Scheme: 0x%x, Simultaneous Ops: 0x%x", pri_ext
->TmpBlkUnprotect
,
429 pri_ext
->BlkProtUnprot
, pri_ext
->SimultaneousOps
);
431 LOG_DEBUG("Burst Mode: 0x%x, Page Mode: 0x%x, ", pri_ext
->BurstMode
, pri_ext
->PageMode
);
434 LOG_DEBUG("Vpp min: %u.%x, Vpp max: %u.%x",
435 (pri_ext
->VppMin
& 0xf0) >> 4, pri_ext
->VppMin
& 0x0f,
436 (pri_ext
->VppMax
& 0xf0) >> 4, pri_ext
->VppMax
& 0x0f);
438 LOG_DEBUG("WP# protection 0x%x", pri_ext
->TopBottom
);
440 /* default values for implementation specific workarounds */
441 pri_ext
->_unlock1
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock1
;
442 pri_ext
->_unlock2
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock2
;
443 pri_ext
->_reversed_geometry
= 0;
448 static int cfi_read_atmel_pri_ext(struct flash_bank
*bank
)
451 struct cfi_atmel_pri_ext atmel_pri_ext
;
452 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
453 struct cfi_spansion_pri_ext
*pri_ext
= malloc(sizeof(struct cfi_spansion_pri_ext
));
455 /* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,
456 * but a different primary extended query table.
457 * We read the atmel table, and prepare a valid AMD/Spansion query table.
460 memset(pri_ext
, 0, sizeof(struct cfi_spansion_pri_ext
));
462 cfi_info
->pri_ext
= pri_ext
;
464 atmel_pri_ext
.pri
[0] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 0);
465 atmel_pri_ext
.pri
[1] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 1);
466 atmel_pri_ext
.pri
[2] = cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 2);
468 if ((atmel_pri_ext
.pri
[0] != 'P') || (atmel_pri_ext
.pri
[1] != 'R') || (atmel_pri_ext
.pri
[2] != 'I'))
470 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
474 LOG_ERROR("Could not read atmel bank information");
475 return ERROR_FLASH_BANK_INVALID
;
478 pri_ext
->pri
[0] = atmel_pri_ext
.pri
[0];
479 pri_ext
->pri
[1] = atmel_pri_ext
.pri
[1];
480 pri_ext
->pri
[2] = atmel_pri_ext
.pri
[2];
482 atmel_pri_ext
.major_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 3);
483 atmel_pri_ext
.minor_version
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 4);
485 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
);
487 pri_ext
->major_version
= atmel_pri_ext
.major_version
;
488 pri_ext
->minor_version
= atmel_pri_ext
.minor_version
;
490 atmel_pri_ext
.features
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 5);
491 atmel_pri_ext
.bottom_boot
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 6);
492 atmel_pri_ext
.burst_mode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 7);
493 atmel_pri_ext
.page_mode
= cfi_query_u8(bank
, 0, cfi_info
->pri_addr
+ 8);
495 LOG_DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x",
496 atmel_pri_ext
.features
, atmel_pri_ext
.bottom_boot
, atmel_pri_ext
.burst_mode
, atmel_pri_ext
.page_mode
);
498 if (atmel_pri_ext
.features
& 0x02)
499 pri_ext
->EraseSuspend
= 2;
501 if (atmel_pri_ext
.bottom_boot
)
502 pri_ext
->TopBottom
= 2;
504 pri_ext
->TopBottom
= 3;
506 pri_ext
->_unlock1
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock1
;
507 pri_ext
->_unlock2
= cfi_unlock_addresses
[CFI_UNLOCK_555_2AA
].unlock2
;
512 static int cfi_read_0002_pri_ext(struct flash_bank
*bank
)
514 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
516 if (cfi_info
->manufacturer
== CFI_MFR_ATMEL
)
518 return cfi_read_atmel_pri_ext(bank
);
522 return cfi_read_spansion_pri_ext(bank
);
526 static int cfi_spansion_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
529 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
530 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
532 printed
= snprintf(buf
, buf_size
, "\nSpansion primary algorithm extend information:\n");
536 printed
= snprintf(buf
, buf_size
, "pri: '%c%c%c', version: %c.%c\n", pri_ext
->pri
[0],
537 pri_ext
->pri
[1], pri_ext
->pri
[2],
538 pri_ext
->major_version
, pri_ext
->minor_version
);
542 printed
= snprintf(buf
, buf_size
, "Silicon Rev.: 0x%x, Address Sensitive unlock: 0x%x\n",
543 (pri_ext
->SiliconRevision
) >> 2,
544 (pri_ext
->SiliconRevision
) & 0x03);
548 printed
= snprintf(buf
, buf_size
, "Erase Suspend: 0x%x, Sector Protect: 0x%x\n",
549 pri_ext
->EraseSuspend
,
554 printed
= snprintf(buf
, buf_size
, "VppMin: %u.%x, VppMax: %u.%x\n",
555 (pri_ext
->VppMin
& 0xf0) >> 4, pri_ext
->VppMin
& 0x0f,
556 (pri_ext
->VppMax
& 0xf0) >> 4, pri_ext
->VppMax
& 0x0f);
561 static int cfi_intel_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
564 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
565 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
567 printed
= snprintf(buf
, buf_size
, "\nintel primary algorithm extend information:\n");
571 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
);
575 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
);
579 printed
= snprintf(buf
, buf_size
, "Vcc opt: %x.%x, Vpp opt: %u.%x\n",
580 (pri_ext
->vcc_optimal
& 0xf0) >> 4, pri_ext
->vcc_optimal
& 0x0f,
581 (pri_ext
->vpp_optimal
& 0xf0) >> 4, pri_ext
->vpp_optimal
& 0x0f);
585 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
);
590 /* flash_bank cfi <base> <size> <chip_width> <bus_width> <target#> [options]
592 FLASH_BANK_COMMAND_HANDLER(cfi_flash_bank_command
)
594 struct cfi_flash_bank
*cfi_info
;
598 LOG_WARNING("incomplete flash_bank cfi configuration");
599 return ERROR_FLASH_BANK_INVALID
;
602 if ((bank
->chip_width
> CFI_MAX_CHIP_WIDTH
)
603 || (bank
->bus_width
> CFI_MAX_BUS_WIDTH
))
605 LOG_ERROR("chip and bus width have to specified in bytes");
606 return ERROR_FLASH_BANK_INVALID
;
609 cfi_info
= malloc(sizeof(struct cfi_flash_bank
));
610 cfi_info
->probed
= 0;
611 bank
->driver_priv
= cfi_info
;
613 cfi_info
->write_algorithm
= NULL
;
615 cfi_info
->x16_as_x8
= 0;
616 cfi_info
->jedec_probe
= 0;
617 cfi_info
->not_cfi
= 0;
619 for (unsigned i
= 6; i
< CMD_ARGC
; i
++)
621 if (strcmp(CMD_ARGV
[i
], "x16_as_x8") == 0)
623 cfi_info
->x16_as_x8
= 1;
625 else if (strcmp(CMD_ARGV
[i
], "jedec_probe") == 0)
627 cfi_info
->jedec_probe
= 1;
631 cfi_info
->write_algorithm
= NULL
;
633 /* bank wasn't probed yet */
634 cfi_info
->qry
[0] = -1;
639 static int cfi_intel_erase(struct flash_bank
*bank
, int first
, int last
)
642 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
645 cfi_intel_clear_status_register(bank
);
647 for (i
= first
; i
<= last
; i
++)
649 if ((retval
= cfi_send_command(bank
, 0x20, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
654 if ((retval
= cfi_send_command(bank
, 0xd0, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
659 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->block_erase_timeout_typ
)) == 0x80)
660 bank
->sectors
[i
].is_erased
= 1;
663 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
668 LOG_ERROR("couldn't erase block %i of flash bank at base 0x%" PRIx32
, i
, bank
->base
);
669 return ERROR_FLASH_OPERATION_FAILED
;
673 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
676 static int cfi_spansion_erase(struct flash_bank
*bank
, int first
, int last
)
679 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
680 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
683 for (i
= first
; i
<= last
; i
++)
685 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
690 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
695 if ((retval
= cfi_send_command(bank
, 0x80, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
700 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
705 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
710 if ((retval
= cfi_send_command(bank
, 0x30, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
715 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->block_erase_timeout_typ
)) == ERROR_OK
)
716 bank
->sectors
[i
].is_erased
= 1;
719 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
724 LOG_ERROR("couldn't erase block %i of flash bank at base 0x%" PRIx32
, i
, bank
->base
);
725 return ERROR_FLASH_OPERATION_FAILED
;
729 return cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0));
732 static int cfi_erase(struct flash_bank
*bank
, int first
, int last
)
734 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
736 if (bank
->target
->state
!= TARGET_HALTED
)
738 LOG_ERROR("Target not halted");
739 return ERROR_TARGET_NOT_HALTED
;
742 if ((first
< 0) || (last
< first
) || (last
>= bank
->num_sectors
))
744 return ERROR_FLASH_SECTOR_INVALID
;
747 if (cfi_info
->qry
[0] != 'Q')
748 return ERROR_FLASH_BANK_NOT_PROBED
;
750 switch (cfi_info
->pri_id
)
754 return cfi_intel_erase(bank
, first
, last
);
757 return cfi_spansion_erase(bank
, first
, last
);
760 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
767 static int cfi_intel_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
770 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
771 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
772 struct target
*target
= bank
->target
; /* FIXME: to be removed */
773 uint8_t command
[CFI_MAX_BUS_WIDTH
]; /* FIXME: to be removed */
777 /* if the device supports neither legacy lock/unlock (bit 3) nor
778 * instant individual block locking (bit 5).
780 if (!(pri_ext
->feature_support
& 0x28))
781 return ERROR_FLASH_OPERATION_FAILED
;
783 cfi_intel_clear_status_register(bank
);
785 for (i
= first
; i
<= last
; i
++)
787 cfi_command(bank
, 0x60, command
); /* FIXME: to be removed */
788 LOG_DEBUG("address: 0x%4.4" PRIx32
", command: 0x%4.4" PRIx32
, flash_address(bank
, i
, 0x0), target_buffer_get_u32(target
, command
));
789 if ((retval
= cfi_send_command(bank
, 0x60, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
795 cfi_command(bank
, 0x01, command
); /* FIXME: to be removed */
796 LOG_DEBUG("address: 0x%4.4" PRIx32
", command: 0x%4.4" PRIx32
, flash_address(bank
, i
, 0x0), target_buffer_get_u32(target
, command
));
797 if ((retval
= cfi_send_command(bank
, 0x01, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
801 bank
->sectors
[i
].is_protected
= 1;
805 cfi_command(bank
, 0xd0, command
); /* FIXME: to be removed */
806 LOG_DEBUG("address: 0x%4.4" PRIx32
", command: 0x%4.4" PRIx32
, flash_address(bank
, i
, 0x0), target_buffer_get_u32(target
, command
));
807 if ((retval
= cfi_send_command(bank
, 0xd0, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
811 bank
->sectors
[i
].is_protected
= 0;
814 /* instant individual block locking doesn't require reading of the status register */
815 if (!(pri_ext
->feature_support
& 0x20))
817 /* Clear lock bits operation may take up to 1.4s */
818 cfi_intel_wait_status_busy(bank
, 1400);
822 uint8_t block_status
;
823 /* read block lock bit, to verify status */
824 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
828 block_status
= cfi_get_u8(bank
, i
, 0x2);
830 if ((block_status
& 0x1) != set
)
832 LOG_ERROR("couldn't change block lock status (set = %i, block_status = 0x%2.2x)", set
, block_status
);
833 if ((retval
= cfi_send_command(bank
, 0x70, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
837 cfi_intel_wait_status_busy(bank
, 10);
840 return ERROR_FLASH_OPERATION_FAILED
;
850 /* if the device doesn't support individual block lock bits set/clear,
851 * all blocks have been unlocked in parallel, so we set those that should be protected
853 if ((!set
) && (!(pri_ext
->feature_support
& 0x20)))
855 /* FIX!!! this code path is broken!!!
857 * The correct approach is:
859 * 1. read out current protection status
861 * 2. override read out protection status w/unprotected.
863 * 3. re-protect what should be protected.
866 for (i
= 0; i
< bank
->num_sectors
; i
++)
868 if (bank
->sectors
[i
].is_protected
== 1)
870 cfi_intel_clear_status_register(bank
);
872 if ((retval
= cfi_send_command(bank
, 0x60, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
877 if ((retval
= cfi_send_command(bank
, 0x01, flash_address(bank
, i
, 0x0))) != ERROR_OK
)
882 cfi_intel_wait_status_busy(bank
, 100);
887 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
890 static int cfi_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
892 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
894 if (bank
->target
->state
!= TARGET_HALTED
)
896 LOG_ERROR("Target not halted");
897 return ERROR_TARGET_NOT_HALTED
;
900 if ((first
< 0) || (last
< first
) || (last
>= bank
->num_sectors
))
902 LOG_ERROR("Invalid sector range");
903 return ERROR_FLASH_SECTOR_INVALID
;
906 if (cfi_info
->qry
[0] != 'Q')
907 return ERROR_FLASH_BANK_NOT_PROBED
;
909 switch (cfi_info
->pri_id
)
913 return cfi_intel_protect(bank
, set
, first
, last
);
916 LOG_ERROR("protect: cfi primary command set %i unsupported", cfi_info
->pri_id
);
921 /* FIXME Replace this by a simple memcpy() - still unsure about sideeffects */
922 static void cfi_add_byte(struct flash_bank
*bank
, uint8_t *word
, uint8_t byte
)
924 /* struct target *target = bank->target; */
929 * The data to flash must not be changed in endian! We write a bytestrem in
930 * target byte order already. Only the control and status byte lane of the flash
931 * WSM is interpreted by the CPU in different ways, when read a uint16_t or uint32_t
932 * word (data seems to be in the upper or lower byte lane for uint16_t accesses).
936 if (target
->endianness
== TARGET_LITTLE_ENDIAN
)
940 for (i
= 0; i
< bank
->bus_width
- 1; i
++)
941 word
[i
] = word
[i
+ 1];
942 word
[bank
->bus_width
- 1] = byte
;
948 for (i
= bank
->bus_width
- 1; i
> 0; i
--)
949 word
[i
] = word
[i
- 1];
955 /* Convert code image to target endian */
956 /* FIXME create general block conversion fcts in target.c?) */
957 static void cfi_fix_code_endian(struct target
*target
, uint8_t *dest
, const uint32_t *src
, uint32_t count
)
960 for (i
= 0; i
< count
; i
++)
962 target_buffer_set_u32(target
, dest
, *src
);
968 static uint32_t cfi_command_val(struct flash_bank
*bank
, uint8_t cmd
)
970 struct target
*target
= bank
->target
;
972 uint8_t buf
[CFI_MAX_BUS_WIDTH
];
973 cfi_command(bank
, cmd
, buf
);
974 switch (bank
->bus_width
)
980 return target_buffer_get_u16(target
, buf
);
983 return target_buffer_get_u32(target
, buf
);
986 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
991 static int cfi_intel_write_block(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t address
, uint32_t count
)
993 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
994 struct target
*target
= bank
->target
;
995 struct reg_param reg_params
[7];
996 struct arm_algorithm armv4_5_info
;
997 struct working_area
*source
;
998 uint32_t buffer_size
= 32768;
999 uint32_t write_command_val
, busy_pattern_val
, error_pattern_val
;
1001 /* algorithm register usage:
1002 * r0: source address (in RAM)
1003 * r1: target address (in Flash)
1005 * r3: flash write command
1006 * r4: status byte (returned to host)
1007 * r5: busy test pattern
1008 * r6: error test pattern
1011 static const uint32_t word_32_code
[] = {
1012 0xe4904004, /* loop: ldr r4, [r0], #4 */
1013 0xe5813000, /* str r3, [r1] */
1014 0xe5814000, /* str r4, [r1] */
1015 0xe5914000, /* busy: ldr r4, [r1] */
1016 0xe0047005, /* and r7, r4, r5 */
1017 0xe1570005, /* cmp r7, r5 */
1018 0x1afffffb, /* bne busy */
1019 0xe1140006, /* tst r4, r6 */
1020 0x1a000003, /* bne done */
1021 0xe2522001, /* subs r2, r2, #1 */
1022 0x0a000001, /* beq done */
1023 0xe2811004, /* add r1, r1 #4 */
1024 0xeafffff2, /* b loop */
1025 0xeafffffe /* done: b -2 */
1028 static const uint32_t word_16_code
[] = {
1029 0xe0d040b2, /* loop: ldrh r4, [r0], #2 */
1030 0xe1c130b0, /* strh r3, [r1] */
1031 0xe1c140b0, /* strh r4, [r1] */
1032 0xe1d140b0, /* busy ldrh r4, [r1] */
1033 0xe0047005, /* and r7, r4, r5 */
1034 0xe1570005, /* cmp r7, r5 */
1035 0x1afffffb, /* bne busy */
1036 0xe1140006, /* tst r4, r6 */
1037 0x1a000003, /* bne done */
1038 0xe2522001, /* subs r2, r2, #1 */
1039 0x0a000001, /* beq done */
1040 0xe2811002, /* add r1, r1 #2 */
1041 0xeafffff2, /* b loop */
1042 0xeafffffe /* done: b -2 */
1045 static const uint32_t word_8_code
[] = {
1046 0xe4d04001, /* loop: ldrb r4, [r0], #1 */
1047 0xe5c13000, /* strb r3, [r1] */
1048 0xe5c14000, /* strb r4, [r1] */
1049 0xe5d14000, /* busy ldrb r4, [r1] */
1050 0xe0047005, /* and r7, r4, r5 */
1051 0xe1570005, /* cmp r7, r5 */
1052 0x1afffffb, /* bne busy */
1053 0xe1140006, /* tst r4, r6 */
1054 0x1a000003, /* bne done */
1055 0xe2522001, /* subs r2, r2, #1 */
1056 0x0a000001, /* beq done */
1057 0xe2811001, /* add r1, r1 #1 */
1058 0xeafffff2, /* b loop */
1059 0xeafffffe /* done: b -2 */
1061 uint8_t target_code
[4*CFI_MAX_INTEL_CODESIZE
];
1062 const uint32_t *target_code_src
;
1063 uint32_t target_code_size
;
1064 int retval
= ERROR_OK
;
1067 cfi_intel_clear_status_register(bank
);
1069 armv4_5_info
.common_magic
= ARM_COMMON_MAGIC
;
1070 armv4_5_info
.core_mode
= ARM_MODE_SVC
;
1071 armv4_5_info
.core_state
= ARM_STATE_ARM
;
1073 /* If we are setting up the write_algorith, we need target_code_src */
1074 /* if not we only need target_code_size. */
1076 /* However, we don't want to create multiple code paths, so we */
1077 /* do the unecessary evaluation of target_code_src, which the */
1078 /* compiler will probably nicely optimize away if not needed */
1080 /* prepare algorithm code for target endian */
1081 switch (bank
->bus_width
)
1084 target_code_src
= word_8_code
;
1085 target_code_size
= sizeof(word_8_code
);
1088 target_code_src
= word_16_code
;
1089 target_code_size
= sizeof(word_16_code
);
1092 target_code_src
= word_32_code
;
1093 target_code_size
= sizeof(word_32_code
);
1096 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
1097 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1100 /* flash write code */
1101 if (!cfi_info
->write_algorithm
)
1103 if (target_code_size
> sizeof(target_code
))
1105 LOG_WARNING("Internal error - target code buffer to small. Increase CFI_MAX_INTEL_CODESIZE and recompile.");
1106 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1108 cfi_fix_code_endian(target
, target_code
, target_code_src
, target_code_size
/ 4);
1110 /* Get memory for block write handler */
1111 retval
= target_alloc_working_area(target
, target_code_size
, &cfi_info
->write_algorithm
);
1112 if (retval
!= ERROR_OK
)
1114 LOG_WARNING("No working area available, can't do block memory writes");
1115 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1118 /* write algorithm code to working area */
1119 retval
= target_write_buffer(target
, cfi_info
->write_algorithm
->address
, target_code_size
, target_code
);
1120 if (retval
!= ERROR_OK
)
1122 LOG_ERROR("Unable to write block write code to target");
1127 /* Get a workspace buffer for the data to flash starting with 32k size.
1128 Half size until buffer would be smaller 256 Bytem then fail back */
1129 /* FIXME Why 256 bytes, why not 32 bytes (smallest flash write page */
1130 while (target_alloc_working_area_try(target
, buffer_size
, &source
) != ERROR_OK
)
1133 if (buffer_size
<= 256)
1135 LOG_WARNING("no large enough working area available, can't do block memory writes");
1136 retval
= ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1141 /* setup algo registers */
1142 init_reg_param(®_params
[0], "r0", 32, PARAM_OUT
);
1143 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
1144 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
1145 init_reg_param(®_params
[3], "r3", 32, PARAM_OUT
);
1146 init_reg_param(®_params
[4], "r4", 32, PARAM_IN
);
1147 init_reg_param(®_params
[5], "r5", 32, PARAM_OUT
);
1148 init_reg_param(®_params
[6], "r6", 32, PARAM_OUT
);
1150 /* prepare command and status register patterns */
1151 write_command_val
= cfi_command_val(bank
, 0x40);
1152 busy_pattern_val
= cfi_command_val(bank
, 0x80);
1153 error_pattern_val
= cfi_command_val(bank
, 0x7e);
1155 LOG_DEBUG("Using target buffer at 0x%08" PRIx32
" and of size 0x%04" PRIx32
, source
->address
, buffer_size
);
1157 /* Programming main loop */
1160 uint32_t thisrun_count
= (count
> buffer_size
) ? buffer_size
: count
;
1163 if ((retval
= target_write_buffer(target
, source
->address
, thisrun_count
, buffer
)) != ERROR_OK
)
1168 buf_set_u32(reg_params
[0].value
, 0, 32, source
->address
);
1169 buf_set_u32(reg_params
[1].value
, 0, 32, address
);
1170 buf_set_u32(reg_params
[2].value
, 0, 32, thisrun_count
/ bank
->bus_width
);
1172 buf_set_u32(reg_params
[3].value
, 0, 32, write_command_val
);
1173 buf_set_u32(reg_params
[5].value
, 0, 32, busy_pattern_val
);
1174 buf_set_u32(reg_params
[6].value
, 0, 32, error_pattern_val
);
1176 LOG_DEBUG("Write 0x%04" PRIx32
" bytes to flash at 0x%08" PRIx32
, thisrun_count
, address
);
1178 /* Execute algorithm, assume breakpoint for last instruction */
1179 retval
= target_run_algorithm(target
, 0, NULL
, 7, reg_params
,
1180 cfi_info
->write_algorithm
->address
,
1181 cfi_info
->write_algorithm
->address
+ target_code_size
- sizeof(uint32_t),
1182 10000, /* 10s should be enough for max. 32k of data */
1185 /* On failure try a fall back to direct word writes */
1186 if (retval
!= ERROR_OK
)
1188 cfi_intel_clear_status_register(bank
);
1189 LOG_ERROR("Execution of flash algorythm failed. Can't fall back. Please report.");
1190 retval
= ERROR_FLASH_OPERATION_FAILED
;
1191 /* retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE; */
1192 /* FIXME To allow fall back or recovery, we must save the actual status
1193 somewhere, so that a higher level code can start recovery. */
1197 /* Check return value from algo code */
1198 wsm_error
= buf_get_u32(reg_params
[4].value
, 0, 32) & error_pattern_val
;
1201 /* read status register (outputs debug inforation) */
1202 cfi_intel_wait_status_busy(bank
, 100);
1203 cfi_intel_clear_status_register(bank
);
1204 retval
= ERROR_FLASH_OPERATION_FAILED
;
1208 buffer
+= thisrun_count
;
1209 address
+= thisrun_count
;
1210 count
-= thisrun_count
;
1213 /* free up resources */
1216 target_free_working_area(target
, source
);
1218 if (cfi_info
->write_algorithm
)
1220 target_free_working_area(target
, cfi_info
->write_algorithm
);
1221 cfi_info
->write_algorithm
= NULL
;
1224 destroy_reg_param(®_params
[0]);
1225 destroy_reg_param(®_params
[1]);
1226 destroy_reg_param(®_params
[2]);
1227 destroy_reg_param(®_params
[3]);
1228 destroy_reg_param(®_params
[4]);
1229 destroy_reg_param(®_params
[5]);
1230 destroy_reg_param(®_params
[6]);
1235 static int cfi_spansion_write_block(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t address
, uint32_t count
)
1237 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1238 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1239 struct target
*target
= bank
->target
;
1240 struct reg_param reg_params
[10];
1241 struct arm_algorithm armv4_5_info
;
1242 struct working_area
*source
;
1243 uint32_t buffer_size
= 32768;
1245 int retval
, retvaltemp
;
1246 int exit_code
= ERROR_OK
;
1248 /* input parameters - */
1249 /* R0 = source address */
1250 /* R1 = destination address */
1251 /* R2 = number of writes */
1252 /* R3 = flash write command */
1253 /* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
1254 /* output parameters - */
1255 /* R5 = 0x80 ok 0x00 bad */
1256 /* temp registers - */
1257 /* R6 = value read from flash to test status */
1258 /* R7 = holding register */
1259 /* unlock registers - */
1260 /* R8 = unlock1_addr */
1261 /* R9 = unlock1_cmd */
1262 /* R10 = unlock2_addr */
1263 /* R11 = unlock2_cmd */
1265 static const uint32_t word_32_code
[] = {
1266 /* 00008100 <sp_32_code>: */
1267 0xe4905004, /* ldr r5, [r0], #4 */
1268 0xe5889000, /* str r9, [r8] */
1269 0xe58ab000, /* str r11, [r10] */
1270 0xe5883000, /* str r3, [r8] */
1271 0xe5815000, /* str r5, [r1] */
1272 0xe1a00000, /* nop */
1274 /* 00008110 <sp_32_busy>: */
1275 0xe5916000, /* ldr r6, [r1] */
1276 0xe0257006, /* eor r7, r5, r6 */
1277 0xe0147007, /* ands r7, r4, r7 */
1278 0x0a000007, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */
1279 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1280 0x0afffff9, /* beq 8110 <sp_32_busy> ; b if DQ5 low */
1281 0xe5916000, /* ldr r6, [r1] */
1282 0xe0257006, /* eor r7, r5, r6 */
1283 0xe0147007, /* ands r7, r4, r7 */
1284 0x0a000001, /* beq 8140 <sp_32_cont> ; b if DQ7 == Data7 */
1285 0xe3a05000, /* mov r5, #0 ; 0x0 - return 0x00, error */
1286 0x1a000004, /* bne 8154 <sp_32_done> */
1288 /* 00008140 <sp_32_cont>: */
1289 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1290 0x03a05080, /* moveq r5, #128 ; 0x80 */
1291 0x0a000001, /* beq 8154 <sp_32_done> */
1292 0xe2811004, /* add r1, r1, #4 ; 0x4 */
1293 0xeaffffe8, /* b 8100 <sp_32_code> */
1295 /* 00008154 <sp_32_done>: */
1296 0xeafffffe /* b 8154 <sp_32_done> */
1299 static const uint32_t word_16_code
[] = {
1300 /* 00008158 <sp_16_code>: */
1301 0xe0d050b2, /* ldrh r5, [r0], #2 */
1302 0xe1c890b0, /* strh r9, [r8] */
1303 0xe1cab0b0, /* strh r11, [r10] */
1304 0xe1c830b0, /* strh r3, [r8] */
1305 0xe1c150b0, /* strh r5, [r1] */
1306 0xe1a00000, /* nop (mov r0,r0) */
1308 /* 00008168 <sp_16_busy>: */
1309 0xe1d160b0, /* ldrh r6, [r1] */
1310 0xe0257006, /* eor r7, r5, r6 */
1311 0xe0147007, /* ands r7, r4, r7 */
1312 0x0a000007, /* beq 8198 <sp_16_cont> */
1313 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1314 0x0afffff9, /* beq 8168 <sp_16_busy> */
1315 0xe1d160b0, /* ldrh r6, [r1] */
1316 0xe0257006, /* eor r7, r5, r6 */
1317 0xe0147007, /* ands r7, r4, r7 */
1318 0x0a000001, /* beq 8198 <sp_16_cont> */
1319 0xe3a05000, /* mov r5, #0 ; 0x0 */
1320 0x1a000004, /* bne 81ac <sp_16_done> */
1322 /* 00008198 <sp_16_cont>: */
1323 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1324 0x03a05080, /* moveq r5, #128 ; 0x80 */
1325 0x0a000001, /* beq 81ac <sp_16_done> */
1326 0xe2811002, /* add r1, r1, #2 ; 0x2 */
1327 0xeaffffe8, /* b 8158 <sp_16_code> */
1329 /* 000081ac <sp_16_done>: */
1330 0xeafffffe /* b 81ac <sp_16_done> */
1333 static const uint32_t word_16_code_dq7only
[] = {
1335 0xe0d050b2, /* ldrh r5, [r0], #2 */
1336 0xe1c890b0, /* strh r9, [r8] */
1337 0xe1cab0b0, /* strh r11, [r10] */
1338 0xe1c830b0, /* strh r3, [r8] */
1339 0xe1c150b0, /* strh r5, [r1] */
1340 0xe1a00000, /* nop (mov r0,r0) */
1343 0xe1d160b0, /* ldrh r6, [r1] */
1344 0xe0257006, /* eor r7, r5, r6 */
1345 0xe2177080, /* ands r7, #0x80 */
1346 0x1afffffb, /* bne 8168 <sp_16_busy> */
1348 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1349 0x03a05080, /* moveq r5, #128 ; 0x80 */
1350 0x0a000001, /* beq 81ac <sp_16_done> */
1351 0xe2811002, /* add r1, r1, #2 ; 0x2 */
1352 0xeafffff0, /* b 8158 <sp_16_code> */
1354 /* 000081ac <sp_16_done>: */
1355 0xeafffffe /* b 81ac <sp_16_done> */
1358 static const uint32_t word_8_code
[] = {
1359 /* 000081b0 <sp_16_code_end>: */
1360 0xe4d05001, /* ldrb r5, [r0], #1 */
1361 0xe5c89000, /* strb r9, [r8] */
1362 0xe5cab000, /* strb r11, [r10] */
1363 0xe5c83000, /* strb r3, [r8] */
1364 0xe5c15000, /* strb r5, [r1] */
1365 0xe1a00000, /* nop (mov r0,r0) */
1367 /* 000081c0 <sp_8_busy>: */
1368 0xe5d16000, /* ldrb r6, [r1] */
1369 0xe0257006, /* eor r7, r5, r6 */
1370 0xe0147007, /* ands r7, r4, r7 */
1371 0x0a000007, /* beq 81f0 <sp_8_cont> */
1372 0xe0166124, /* ands r6, r6, r4, lsr #2 */
1373 0x0afffff9, /* beq 81c0 <sp_8_busy> */
1374 0xe5d16000, /* ldrb r6, [r1] */
1375 0xe0257006, /* eor r7, r5, r6 */
1376 0xe0147007, /* ands r7, r4, r7 */
1377 0x0a000001, /* beq 81f0 <sp_8_cont> */
1378 0xe3a05000, /* mov r5, #0 ; 0x0 */
1379 0x1a000004, /* bne 8204 <sp_8_done> */
1381 /* 000081f0 <sp_8_cont>: */
1382 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
1383 0x03a05080, /* moveq r5, #128 ; 0x80 */
1384 0x0a000001, /* beq 8204 <sp_8_done> */
1385 0xe2811001, /* add r1, r1, #1 ; 0x1 */
1386 0xeaffffe8, /* b 81b0 <sp_16_code_end> */
1388 /* 00008204 <sp_8_done>: */
1389 0xeafffffe /* b 8204 <sp_8_done> */
1392 armv4_5_info
.common_magic
= ARM_COMMON_MAGIC
;
1393 armv4_5_info
.core_mode
= ARM_MODE_SVC
;
1394 armv4_5_info
.core_state
= ARM_STATE_ARM
;
1396 int target_code_size
;
1397 const uint32_t *target_code_src
;
1399 switch (bank
->bus_width
)
1402 target_code_src
= word_8_code
;
1403 target_code_size
= sizeof(word_8_code
);
1406 /* Check for DQ5 support */
1407 if( cfi_info
->status_poll_mask
& (1 << 5) )
1409 target_code_src
= word_16_code
;
1410 target_code_size
= sizeof(word_16_code
);
1414 /* No DQ5 support. Use DQ7 DATA# polling only. */
1415 target_code_src
= word_16_code_dq7only
;
1416 target_code_size
= sizeof(word_16_code_dq7only
);
1420 target_code_src
= word_32_code
;
1421 target_code_size
= sizeof(word_32_code
);
1424 LOG_ERROR("Unsupported bank buswidth %d, can't do block memory writes", bank
->bus_width
);
1425 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1428 /* flash write code */
1429 if (!cfi_info
->write_algorithm
)
1431 uint8_t *target_code
;
1433 /* convert bus-width dependent algorithm code to correct endiannes */
1434 target_code
= malloc(target_code_size
);
1435 cfi_fix_code_endian(target
, target_code
, target_code_src
, target_code_size
/ 4);
1437 /* allocate working area */
1438 retval
= target_alloc_working_area(target
, target_code_size
,
1439 &cfi_info
->write_algorithm
);
1440 if (retval
!= ERROR_OK
)
1446 /* write algorithm code to working area */
1447 if ((retval
= target_write_buffer(target
, cfi_info
->write_algorithm
->address
,
1448 target_code_size
, target_code
)) != ERROR_OK
)
1456 /* the following code still assumes target code is fixed 24*4 bytes */
1458 while (target_alloc_working_area_try(target
, buffer_size
, &source
) != ERROR_OK
)
1461 if (buffer_size
<= 256)
1463 /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
1464 if (cfi_info
->write_algorithm
)
1465 target_free_working_area(target
, cfi_info
->write_algorithm
);
1467 LOG_WARNING("not enough working area available, can't do block memory writes");
1468 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
1472 init_reg_param(®_params
[0], "r0", 32, PARAM_OUT
);
1473 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
1474 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
1475 init_reg_param(®_params
[3], "r3", 32, PARAM_OUT
);
1476 init_reg_param(®_params
[4], "r4", 32, PARAM_OUT
);
1477 init_reg_param(®_params
[5], "r5", 32, PARAM_IN
);
1478 init_reg_param(®_params
[6], "r8", 32, PARAM_OUT
);
1479 init_reg_param(®_params
[7], "r9", 32, PARAM_OUT
);
1480 init_reg_param(®_params
[8], "r10", 32, PARAM_OUT
);
1481 init_reg_param(®_params
[9], "r11", 32, PARAM_OUT
);
1485 uint32_t thisrun_count
= (count
> buffer_size
) ? buffer_size
: count
;
1487 retvaltemp
= target_write_buffer(target
, source
->address
, thisrun_count
, buffer
);
1489 buf_set_u32(reg_params
[0].value
, 0, 32, source
->address
);
1490 buf_set_u32(reg_params
[1].value
, 0, 32, address
);
1491 buf_set_u32(reg_params
[2].value
, 0, 32, thisrun_count
/ bank
->bus_width
);
1492 buf_set_u32(reg_params
[3].value
, 0, 32, cfi_command_val(bank
, 0xA0));
1493 buf_set_u32(reg_params
[4].value
, 0, 32, cfi_command_val(bank
, 0x80));
1494 buf_set_u32(reg_params
[6].value
, 0, 32, flash_address(bank
, 0, pri_ext
->_unlock1
));
1495 buf_set_u32(reg_params
[7].value
, 0, 32, 0xaaaaaaaa);
1496 buf_set_u32(reg_params
[8].value
, 0, 32, flash_address(bank
, 0, pri_ext
->_unlock2
));
1497 buf_set_u32(reg_params
[9].value
, 0, 32, 0x55555555);
1499 retval
= target_run_algorithm(target
, 0, NULL
, 10, reg_params
,
1500 cfi_info
->write_algorithm
->address
,
1501 cfi_info
->write_algorithm
->address
+ ((target_code_size
) - 4),
1502 10000, &armv4_5_info
);
1504 status
= buf_get_u32(reg_params
[5].value
, 0, 32);
1506 if ((retval
!= ERROR_OK
) || (retvaltemp
!= ERROR_OK
) || status
!= 0x80)
1508 LOG_DEBUG("status: 0x%" PRIx32
, status
);
1509 exit_code
= ERROR_FLASH_OPERATION_FAILED
;
1513 buffer
+= thisrun_count
;
1514 address
+= thisrun_count
;
1515 count
-= thisrun_count
;
1518 target_free_all_working_areas(target
);
1520 destroy_reg_param(®_params
[0]);
1521 destroy_reg_param(®_params
[1]);
1522 destroy_reg_param(®_params
[2]);
1523 destroy_reg_param(®_params
[3]);
1524 destroy_reg_param(®_params
[4]);
1525 destroy_reg_param(®_params
[5]);
1526 destroy_reg_param(®_params
[6]);
1527 destroy_reg_param(®_params
[7]);
1528 destroy_reg_param(®_params
[8]);
1529 destroy_reg_param(®_params
[9]);
1534 static int cfi_intel_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1537 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1538 struct target
*target
= bank
->target
;
1540 cfi_intel_clear_status_register(bank
);
1541 if ((retval
= cfi_send_command(bank
, 0x40, address
)) != ERROR_OK
)
1546 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, 1, word
)) != ERROR_OK
)
1551 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != 0x80)
1553 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1558 LOG_ERROR("couldn't write word at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1559 return ERROR_FLASH_OPERATION_FAILED
;
1565 static int cfi_intel_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1568 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1569 struct target
*target
= bank
->target
;
1571 /* Calculate buffer size and boundary mask */
1572 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1573 uint32_t buffermask
= buffersize
-1;
1574 uint32_t bufferwsize
;
1576 /* Check for valid range */
1577 if (address
& buffermask
)
1579 LOG_ERROR("Write address at base 0x%" PRIx32
", address %" PRIx32
" not aligned to 2^%d boundary",
1580 bank
->base
, address
, cfi_info
->max_buf_write_size
);
1581 return ERROR_FLASH_OPERATION_FAILED
;
1583 switch (bank
->chip_width
)
1585 case 4 : bufferwsize
= buffersize
/ 4; break;
1586 case 2 : bufferwsize
= buffersize
/ 2; break;
1587 case 1 : bufferwsize
= buffersize
; break;
1589 LOG_ERROR("Unsupported chip width %d", bank
->chip_width
);
1590 return ERROR_FLASH_OPERATION_FAILED
;
1593 bufferwsize
/=(bank
->bus_width
/ bank
->chip_width
);
1596 /* Check for valid size */
1597 if (wordcount
> bufferwsize
)
1599 LOG_ERROR("Number of data words %" PRId32
" exceeds available buffersize %" PRId32
, wordcount
, buffersize
);
1600 return ERROR_FLASH_OPERATION_FAILED
;
1603 /* Write to flash buffer */
1604 cfi_intel_clear_status_register(bank
);
1606 /* Initiate buffer operation _*/
1607 if ((retval
= cfi_send_command(bank
, 0xe8, address
)) != ERROR_OK
)
1611 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->buf_write_timeout_max
)) != 0x80)
1613 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1618 LOG_ERROR("couldn't start buffer write operation at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1619 return ERROR_FLASH_OPERATION_FAILED
;
1622 /* Write buffer wordcount-1 and data words */
1623 if ((retval
= cfi_send_command(bank
, bufferwsize
-1, address
)) != ERROR_OK
)
1628 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, bufferwsize
, word
)) != ERROR_OK
)
1633 /* Commit write operation */
1634 if ((retval
= cfi_send_command(bank
, 0xd0, address
)) != ERROR_OK
)
1638 if (cfi_intel_wait_status_busy(bank
, 1000 * (1 << cfi_info
->buf_write_timeout_max
)) != 0x80)
1640 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1645 LOG_ERROR("Buffer write at base 0x%" PRIx32
", address %" PRIx32
" failed.", bank
->base
, address
);
1646 return ERROR_FLASH_OPERATION_FAILED
;
1652 static int cfi_spansion_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1655 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1656 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1657 struct target
*target
= bank
->target
;
1659 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1664 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
1669 if ((retval
= cfi_send_command(bank
, 0xa0, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1674 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, 1, word
)) != ERROR_OK
)
1679 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != ERROR_OK
)
1681 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1686 LOG_ERROR("couldn't write word at base 0x%" PRIx32
", address %" PRIx32
, bank
->base
, address
);
1687 return ERROR_FLASH_OPERATION_FAILED
;
1693 static int cfi_spansion_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1696 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1697 struct target
*target
= bank
->target
;
1698 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
1700 /* Calculate buffer size and boundary mask */
1701 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1702 uint32_t buffermask
= buffersize
-1;
1703 uint32_t bufferwsize
;
1705 /* Check for valid range */
1706 if (address
& buffermask
)
1708 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
);
1709 return ERROR_FLASH_OPERATION_FAILED
;
1711 switch (bank
->chip_width
)
1713 case 4 : bufferwsize
= buffersize
/ 4; break;
1714 case 2 : bufferwsize
= buffersize
/ 2; break;
1715 case 1 : bufferwsize
= buffersize
; break;
1717 LOG_ERROR("Unsupported chip width %d", bank
->chip_width
);
1718 return ERROR_FLASH_OPERATION_FAILED
;
1721 bufferwsize
/=(bank
->bus_width
/ bank
->chip_width
);
1723 /* Check for valid size */
1724 if (wordcount
> bufferwsize
)
1726 LOG_ERROR("Number of data words %" PRId32
" exceeds available buffersize %" PRId32
, wordcount
, buffersize
);
1727 return ERROR_FLASH_OPERATION_FAILED
;
1731 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
1736 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
1741 // Buffer load command
1742 if ((retval
= cfi_send_command(bank
, 0x25, address
)) != ERROR_OK
)
1747 /* Write buffer wordcount-1 and data words */
1748 if ((retval
= cfi_send_command(bank
, bufferwsize
-1, address
)) != ERROR_OK
)
1753 if ((retval
= target_write_memory(target
, address
, bank
->bus_width
, bufferwsize
, word
)) != ERROR_OK
)
1758 /* Commit write operation */
1759 if ((retval
= cfi_send_command(bank
, 0x29, address
)) != ERROR_OK
)
1764 if (cfi_spansion_wait_status_busy(bank
, 1000 * (1 << cfi_info
->word_write_timeout_max
)) != ERROR_OK
)
1766 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1771 LOG_ERROR("couldn't write block at base 0x%" PRIx32
", address %" PRIx32
", size %" PRIx32
, bank
->base
, address
, bufferwsize
);
1772 return ERROR_FLASH_OPERATION_FAILED
;
1778 static int cfi_write_word(struct flash_bank
*bank
, uint8_t *word
, uint32_t address
)
1780 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1782 switch (cfi_info
->pri_id
)
1786 return cfi_intel_write_word(bank
, word
, address
);
1789 return cfi_spansion_write_word(bank
, word
, address
);
1792 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1796 return ERROR_FLASH_OPERATION_FAILED
;
1799 static int cfi_write_words(struct flash_bank
*bank
, uint8_t *word
, uint32_t wordcount
, uint32_t address
)
1801 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1803 switch (cfi_info
->pri_id
)
1807 return cfi_intel_write_words(bank
, word
, wordcount
, address
);
1810 return cfi_spansion_write_words(bank
, word
, wordcount
, address
);
1813 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1817 return ERROR_FLASH_OPERATION_FAILED
;
1820 static int cfi_write(struct flash_bank
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
1822 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
1823 struct target
*target
= bank
->target
;
1824 uint32_t address
= bank
->base
+ offset
; /* address of first byte to be programmed */
1825 uint32_t write_p
, copy_p
;
1826 int align
; /* number of unaligned bytes */
1827 int blk_count
; /* number of bus_width bytes for block copy */
1828 uint8_t current_word
[CFI_MAX_BUS_WIDTH
* 4]; /* word (bus_width size) currently being programmed */
1832 if (bank
->target
->state
!= TARGET_HALTED
)
1834 LOG_ERROR("Target not halted");
1835 return ERROR_TARGET_NOT_HALTED
;
1838 if (offset
+ count
> bank
->size
)
1839 return ERROR_FLASH_DST_OUT_OF_BANK
;
1841 if (cfi_info
->qry
[0] != 'Q')
1842 return ERROR_FLASH_BANK_NOT_PROBED
;
1844 /* start at the first byte of the first word (bus_width size) */
1845 write_p
= address
& ~(bank
->bus_width
- 1);
1846 if ((align
= address
- write_p
) != 0)
1848 LOG_INFO("Fixup %d unaligned head bytes", align
);
1850 for (i
= 0; i
< bank
->bus_width
; i
++)
1851 current_word
[i
] = 0;
1854 /* copy bytes before the first write address */
1855 for (i
= 0; i
< align
; ++i
, ++copy_p
)
1858 if ((retval
= target_read_memory(target
, copy_p
, 1, 1, &byte
)) != ERROR_OK
)
1862 cfi_add_byte(bank
, current_word
, byte
);
1865 /* add bytes from the buffer */
1866 for (; (i
< bank
->bus_width
) && (count
> 0); i
++)
1868 cfi_add_byte(bank
, current_word
, *buffer
++);
1873 /* if the buffer is already finished, copy bytes after the last write address */
1874 for (; (count
== 0) && (i
< bank
->bus_width
); ++i
, ++copy_p
)
1877 if ((retval
= target_read_memory(target
, copy_p
, 1, 1, &byte
)) != ERROR_OK
)
1881 cfi_add_byte(bank
, current_word
, byte
);
1884 retval
= cfi_write_word(bank
, current_word
, write_p
);
1885 if (retval
!= ERROR_OK
)
1890 /* handle blocks of bus_size aligned bytes */
1891 blk_count
= count
& ~(bank
->bus_width
- 1); /* round down, leave tail bytes */
1892 switch (cfi_info
->pri_id
)
1894 /* try block writes (fails without working area) */
1897 retval
= cfi_intel_write_block(bank
, buffer
, write_p
, blk_count
);
1900 retval
= cfi_spansion_write_block(bank
, buffer
, write_p
, blk_count
);
1903 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
1904 retval
= ERROR_FLASH_OPERATION_FAILED
;
1907 if (retval
== ERROR_OK
)
1909 /* Increment pointers and decrease count on succesful block write */
1910 buffer
+= blk_count
;
1911 write_p
+= blk_count
;
1916 if (retval
== ERROR_TARGET_RESOURCE_NOT_AVAILABLE
)
1918 //adjust buffersize for chip width
1919 uint32_t buffersize
= (1UL << cfi_info
->max_buf_write_size
) * (bank
->bus_width
/ bank
->chip_width
);
1920 uint32_t buffermask
= buffersize
-1;
1921 uint32_t bufferwsize
;
1923 switch (bank
->chip_width
)
1925 case 4 : bufferwsize
= buffersize
/ 4; break;
1926 case 2 : bufferwsize
= buffersize
/ 2; break;
1927 case 1 : bufferwsize
= buffersize
; break;
1929 LOG_ERROR("Unsupported chip width %d", bank
->chip_width
);
1930 return ERROR_FLASH_OPERATION_FAILED
;
1933 bufferwsize
/=(bank
->bus_width
/ bank
->chip_width
);
1935 /* fall back to memory writes */
1936 while (count
>= (uint32_t)bank
->bus_width
)
1939 if ((write_p
& 0xff) == 0)
1941 LOG_INFO("Programming at %08" PRIx32
", count %08" PRIx32
" bytes remaining", write_p
, count
);
1944 if ((bufferwsize
> 0) && (count
>= buffersize
) && !(write_p
& buffermask
))
1946 retval
= cfi_write_words(bank
, buffer
, bufferwsize
, write_p
);
1947 if (retval
== ERROR_OK
)
1949 buffer
+= buffersize
;
1950 write_p
+= buffersize
;
1951 count
-= buffersize
;
1955 /* try the slow way? */
1958 for (i
= 0; i
< bank
->bus_width
; i
++)
1959 current_word
[i
] = 0;
1961 for (i
= 0; i
< bank
->bus_width
; i
++)
1963 cfi_add_byte(bank
, current_word
, *buffer
++);
1966 retval
= cfi_write_word(bank
, current_word
, write_p
);
1967 if (retval
!= ERROR_OK
)
1970 write_p
+= bank
->bus_width
;
1971 count
-= bank
->bus_width
;
1979 /* return to read array mode, so we can read from flash again for padding */
1980 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1984 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
1989 /* handle unaligned tail bytes */
1992 LOG_INFO("Fixup %" PRId32
" unaligned tail bytes", count
);
1995 for (i
= 0; i
< bank
->bus_width
; i
++)
1996 current_word
[i
] = 0;
1998 for (i
= 0; (i
< bank
->bus_width
) && (count
> 0); ++i
, ++copy_p
)
2000 cfi_add_byte(bank
, current_word
, *buffer
++);
2003 for (; i
< bank
->bus_width
; ++i
, ++copy_p
)
2006 if ((retval
= target_read_memory(target
, copy_p
, 1, 1, &byte
)) != ERROR_OK
)
2010 cfi_add_byte(bank
, current_word
, byte
);
2012 retval
= cfi_write_word(bank
, current_word
, write_p
);
2013 if (retval
!= ERROR_OK
)
2017 /* return to read array mode */
2018 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
2022 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
2025 static void cfi_fixup_atmel_reversed_erase_regions(struct flash_bank
*bank
, void *param
)
2028 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2029 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2031 pri_ext
->_reversed_geometry
= 1;
2034 static void cfi_fixup_0002_erase_regions(struct flash_bank
*bank
, void *param
)
2037 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2038 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2041 if ((pri_ext
->_reversed_geometry
) || (pri_ext
->TopBottom
== 3))
2043 LOG_DEBUG("swapping reversed erase region information on cmdset 0002 device");
2045 for (i
= 0; i
< cfi_info
->num_erase_regions
/ 2; i
++)
2047 int j
= (cfi_info
->num_erase_regions
- 1) - i
;
2050 swap
= cfi_info
->erase_region_info
[i
];
2051 cfi_info
->erase_region_info
[i
] = cfi_info
->erase_region_info
[j
];
2052 cfi_info
->erase_region_info
[j
] = swap
;
2057 static void cfi_fixup_0002_unlock_addresses(struct flash_bank
*bank
, void *param
)
2059 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2060 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2061 struct cfi_unlock_addresses
*unlock_addresses
= param
;
2063 pri_ext
->_unlock1
= unlock_addresses
->unlock1
;
2064 pri_ext
->_unlock2
= unlock_addresses
->unlock2
;
2068 static int cfi_query_string(struct flash_bank
*bank
, int address
)
2070 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2073 if ((retval
= cfi_send_command(bank
, 0x98, flash_address(bank
, 0, address
))) != ERROR_OK
)
2078 cfi_info
->qry
[0] = cfi_query_u8(bank
, 0, 0x10);
2079 cfi_info
->qry
[1] = cfi_query_u8(bank
, 0, 0x11);
2080 cfi_info
->qry
[2] = cfi_query_u8(bank
, 0, 0x12);
2082 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]);
2084 if ((cfi_info
->qry
[0] != 'Q') || (cfi_info
->qry
[1] != 'R') || (cfi_info
->qry
[2] != 'Y'))
2086 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
2090 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
2094 LOG_ERROR("Could not probe bank: no QRY");
2095 return ERROR_FLASH_BANK_INVALID
;
2101 static int cfi_probe(struct flash_bank
*bank
)
2103 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2104 struct target
*target
= bank
->target
;
2105 int num_sectors
= 0;
2108 uint32_t unlock1
= 0x555;
2109 uint32_t unlock2
= 0x2aa;
2112 if (bank
->target
->state
!= TARGET_HALTED
)
2114 LOG_ERROR("Target not halted");
2115 return ERROR_TARGET_NOT_HALTED
;
2118 cfi_info
->probed
= 0;
2120 /* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,
2121 * while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa
2123 if (cfi_info
->jedec_probe
)
2129 /* switch to read identifier codes mode ("AUTOSELECT") */
2130 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, unlock1
))) != ERROR_OK
)
2134 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, unlock2
))) != ERROR_OK
)
2138 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, unlock1
))) != ERROR_OK
)
2143 if (bank
->chip_width
== 1)
2145 uint8_t manufacturer
, device_id
;
2146 if ((retval
= target_read_u8(target
, flash_address(bank
, 0, 0x00), &manufacturer
)) != ERROR_OK
)
2150 if ((retval
= target_read_u8(target
, flash_address(bank
, 0, 0x01), &device_id
)) != ERROR_OK
)
2154 cfi_info
->manufacturer
= manufacturer
;
2155 cfi_info
->device_id
= device_id
;
2157 else if (bank
->chip_width
== 2)
2159 if ((retval
= target_read_u16(target
, flash_address(bank
, 0, 0x00), &cfi_info
->manufacturer
)) != ERROR_OK
)
2163 if ((retval
= target_read_u16(target
, flash_address(bank
, 0, 0x01), &cfi_info
->device_id
)) != ERROR_OK
)
2169 LOG_INFO("Flash Manufacturer/Device: 0x%04x 0x%04x", cfi_info
->manufacturer
, cfi_info
->device_id
);
2170 /* switch back to read array mode */
2171 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x00))) != ERROR_OK
)
2175 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x00))) != ERROR_OK
)
2180 /* check device/manufacturer ID for known non-CFI flashes. */
2181 cfi_fixup_non_cfi(bank
);
2183 /* query only if this is a CFI compatible flash,
2184 * otherwise the relevant info has already been filled in
2186 if (cfi_info
->not_cfi
== 0)
2190 /* enter CFI query mode
2191 * according to JEDEC Standard No. 68.01,
2192 * a single bus sequence with address = 0x55, data = 0x98 should put
2193 * the device into CFI query mode.
2195 * SST flashes clearly violate this, and we will consider them incompatbile for now
2198 retval
= cfi_query_string(bank
, 0x55);
2199 if (retval
!= ERROR_OK
)
2202 * Spansion S29WS-N CFI query fix is to try 0x555 if 0x55 fails. Should
2203 * be harmless enough:
2205 * http://www.infradead.org/pipermail/linux-mtd/2005-September/013618.html
2207 LOG_USER("Try workaround w/0x555 instead of 0x55 to get QRY.");
2208 retval
= cfi_query_string(bank
, 0x555);
2210 if (retval
!= ERROR_OK
)
2213 cfi_info
->pri_id
= cfi_query_u16(bank
, 0, 0x13);
2214 cfi_info
->pri_addr
= cfi_query_u16(bank
, 0, 0x15);
2215 cfi_info
->alt_id
= cfi_query_u16(bank
, 0, 0x17);
2216 cfi_info
->alt_addr
= cfi_query_u16(bank
, 0, 0x19);
2218 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
);
2220 cfi_info
->vcc_min
= cfi_query_u8(bank
, 0, 0x1b);
2221 cfi_info
->vcc_max
= cfi_query_u8(bank
, 0, 0x1c);
2222 cfi_info
->vpp_min
= cfi_query_u8(bank
, 0, 0x1d);
2223 cfi_info
->vpp_max
= cfi_query_u8(bank
, 0, 0x1e);
2224 cfi_info
->word_write_timeout_typ
= cfi_query_u8(bank
, 0, 0x1f);
2225 cfi_info
->buf_write_timeout_typ
= cfi_query_u8(bank
, 0, 0x20);
2226 cfi_info
->block_erase_timeout_typ
= cfi_query_u8(bank
, 0, 0x21);
2227 cfi_info
->chip_erase_timeout_typ
= cfi_query_u8(bank
, 0, 0x22);
2228 cfi_info
->word_write_timeout_max
= cfi_query_u8(bank
, 0, 0x23);
2229 cfi_info
->buf_write_timeout_max
= cfi_query_u8(bank
, 0, 0x24);
2230 cfi_info
->block_erase_timeout_max
= cfi_query_u8(bank
, 0, 0x25);
2231 cfi_info
->chip_erase_timeout_max
= cfi_query_u8(bank
, 0, 0x26);
2233 LOG_DEBUG("Vcc min: %x.%x, Vcc max: %x.%x, Vpp min: %u.%x, Vpp max: %u.%x",
2234 (cfi_info
->vcc_min
& 0xf0) >> 4, cfi_info
->vcc_min
& 0x0f,
2235 (cfi_info
->vcc_max
& 0xf0) >> 4, cfi_info
->vcc_max
& 0x0f,
2236 (cfi_info
->vpp_min
& 0xf0) >> 4, cfi_info
->vpp_min
& 0x0f,
2237 (cfi_info
->vpp_max
& 0xf0) >> 4, cfi_info
->vpp_max
& 0x0f);
2238 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
,
2239 1 << cfi_info
->block_erase_timeout_typ
, 1 << cfi_info
->chip_erase_timeout_typ
);
2240 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
),
2241 (1 << cfi_info
->buf_write_timeout_max
) * (1 << cfi_info
->buf_write_timeout_typ
),
2242 (1 << cfi_info
->block_erase_timeout_max
) * (1 << cfi_info
->block_erase_timeout_typ
),
2243 (1 << cfi_info
->chip_erase_timeout_max
) * (1 << cfi_info
->chip_erase_timeout_typ
));
2245 cfi_info
->dev_size
= 1 << cfi_query_u8(bank
, 0, 0x27);
2246 cfi_info
->interface_desc
= cfi_query_u16(bank
, 0, 0x28);
2247 cfi_info
->max_buf_write_size
= cfi_query_u16(bank
, 0, 0x2a);
2248 cfi_info
->num_erase_regions
= cfi_query_u8(bank
, 0, 0x2c);
2250 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
));
2252 if (cfi_info
->num_erase_regions
)
2254 cfi_info
->erase_region_info
= malloc(4 * cfi_info
->num_erase_regions
);
2255 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2257 cfi_info
->erase_region_info
[i
] = cfi_query_u32(bank
, 0, 0x2d + (4 * i
));
2258 LOG_DEBUG("erase region[%i]: %" PRIu32
" blocks of size 0x%" PRIx32
"",
2260 (cfi_info
->erase_region_info
[i
] & 0xffff) + 1,
2261 (cfi_info
->erase_region_info
[i
] >> 16) * 256);
2266 cfi_info
->erase_region_info
= NULL
;
2269 /* We need to read the primary algorithm extended query table before calculating
2270 * the sector layout to be able to apply fixups
2272 switch (cfi_info
->pri_id
)
2274 /* Intel command set (standard and extended) */
2277 cfi_read_intel_pri_ext(bank
);
2279 /* AMD/Spansion, Atmel, ... command set */
2281 cfi_info
->status_poll_mask
= CFI_STATUS_POLL_MASK_DQ5_DQ6_DQ7
; /* default for all CFI flashs */
2282 cfi_read_0002_pri_ext(bank
);
2285 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2289 /* return to read array mode
2290 * we use both reset commands, as some Intel flashes fail to recognize the 0xF0 command
2292 if ((retval
= cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
2296 if ((retval
= cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0))) != ERROR_OK
)
2300 } /* end CFI case */
2302 /* apply fixups depending on the primary command set */
2303 switch (cfi_info
->pri_id
)
2305 /* Intel command set (standard and extended) */
2308 cfi_fixup(bank
, cfi_0001_fixups
);
2310 /* AMD/Spansion, Atmel, ... command set */
2312 cfi_fixup(bank
, cfi_0002_fixups
);
2315 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2319 if ((cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
) != bank
->size
)
2321 LOG_WARNING("configuration specifies 0x%" PRIx32
" size, but a 0x%" PRIx32
" size flash was found", bank
->size
, cfi_info
->dev_size
);
2324 if (cfi_info
->num_erase_regions
== 0)
2326 /* a device might have only one erase block, spanning the whole device */
2327 bank
->num_sectors
= 1;
2328 bank
->sectors
= malloc(sizeof(struct flash_sector
));
2330 bank
->sectors
[sector
].offset
= 0x0;
2331 bank
->sectors
[sector
].size
= bank
->size
;
2332 bank
->sectors
[sector
].is_erased
= -1;
2333 bank
->sectors
[sector
].is_protected
= -1;
2337 uint32_t offset
= 0;
2339 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2341 num_sectors
+= (cfi_info
->erase_region_info
[i
] & 0xffff) + 1;
2344 bank
->num_sectors
= num_sectors
;
2345 bank
->sectors
= malloc(sizeof(struct flash_sector
) * num_sectors
);
2347 for (i
= 0; i
< cfi_info
->num_erase_regions
; i
++)
2350 for (j
= 0; j
< (cfi_info
->erase_region_info
[i
] & 0xffff) + 1; j
++)
2352 bank
->sectors
[sector
].offset
= offset
;
2353 bank
->sectors
[sector
].size
= ((cfi_info
->erase_region_info
[i
] >> 16) * 256) * bank
->bus_width
/ bank
->chip_width
;
2354 offset
+= bank
->sectors
[sector
].size
;
2355 bank
->sectors
[sector
].is_erased
= -1;
2356 bank
->sectors
[sector
].is_protected
= -1;
2360 if (offset
!= (cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
))
2362 LOG_WARNING("CFI size is 0x%" PRIx32
", but total sector size is 0x%" PRIx32
"", \
2363 (cfi_info
->dev_size
* bank
->bus_width
/ bank
->chip_width
), offset
);
2367 cfi_info
->probed
= 1;
2372 static int cfi_auto_probe(struct flash_bank
*bank
)
2374 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2375 if (cfi_info
->probed
)
2377 return cfi_probe(bank
);
2381 static int cfi_intel_protect_check(struct flash_bank
*bank
)
2384 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2385 struct cfi_intel_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2388 /* check if block lock bits are supported on this device */
2389 if (!(pri_ext
->blk_status_reg_mask
& 0x1))
2390 return ERROR_FLASH_OPERATION_FAILED
;
2392 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, 0x55))) != ERROR_OK
)
2397 for (i
= 0; i
< bank
->num_sectors
; i
++)
2399 uint8_t block_status
= cfi_get_u8(bank
, i
, 0x2);
2401 if (block_status
& 1)
2402 bank
->sectors
[i
].is_protected
= 1;
2404 bank
->sectors
[i
].is_protected
= 0;
2407 return cfi_send_command(bank
, 0xff, flash_address(bank
, 0, 0x0));
2410 static int cfi_spansion_protect_check(struct flash_bank
*bank
)
2413 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2414 struct cfi_spansion_pri_ext
*pri_ext
= cfi_info
->pri_ext
;
2417 if ((retval
= cfi_send_command(bank
, 0xaa, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
2422 if ((retval
= cfi_send_command(bank
, 0x55, flash_address(bank
, 0, pri_ext
->_unlock2
))) != ERROR_OK
)
2427 if ((retval
= cfi_send_command(bank
, 0x90, flash_address(bank
, 0, pri_ext
->_unlock1
))) != ERROR_OK
)
2432 for (i
= 0; i
< bank
->num_sectors
; i
++)
2434 uint8_t block_status
= cfi_get_u8(bank
, i
, 0x2);
2436 if (block_status
& 1)
2437 bank
->sectors
[i
].is_protected
= 1;
2439 bank
->sectors
[i
].is_protected
= 0;
2442 return cfi_send_command(bank
, 0xf0, flash_address(bank
, 0, 0x0));
2445 static int cfi_protect_check(struct flash_bank
*bank
)
2447 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2449 if (bank
->target
->state
!= TARGET_HALTED
)
2451 LOG_ERROR("Target not halted");
2452 return ERROR_TARGET_NOT_HALTED
;
2455 if (cfi_info
->qry
[0] != 'Q')
2456 return ERROR_FLASH_BANK_NOT_PROBED
;
2458 switch (cfi_info
->pri_id
)
2462 return cfi_intel_protect_check(bank
);
2465 return cfi_spansion_protect_check(bank
);
2468 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2475 static int cfi_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
2478 struct cfi_flash_bank
*cfi_info
= bank
->driver_priv
;
2480 if (cfi_info
->qry
[0] == (char)-1)
2482 printed
= snprintf(buf
, buf_size
, "\ncfi flash bank not probed yet\n");
2486 if (cfi_info
->not_cfi
== 0)
2487 printed
= snprintf(buf
, buf_size
, "\ncfi information:\n");
2489 printed
= snprintf(buf
, buf_size
, "\nnon-cfi flash:\n");
2491 buf_size
-= printed
;
2493 printed
= snprintf(buf
, buf_size
, "\nmfr: 0x%4.4x, id:0x%4.4x\n",
2494 cfi_info
->manufacturer
, cfi_info
->device_id
);
2496 buf_size
-= printed
;
2498 if (cfi_info
->not_cfi
== 0)
2500 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
);
2502 buf_size
-= printed
;
2504 printed
= snprintf(buf
, buf_size
, "Vcc min: %x.%x, Vcc max: %x.%x, Vpp min: %u.%x, Vpp max: %u.%x\n",
2505 (cfi_info
->vcc_min
& 0xf0) >> 4, cfi_info
->vcc_min
& 0x0f,
2506 (cfi_info
->vcc_max
& 0xf0) >> 4, cfi_info
->vcc_max
& 0x0f,
2507 (cfi_info
->vpp_min
& 0xf0) >> 4, cfi_info
->vpp_min
& 0x0f,
2508 (cfi_info
->vpp_max
& 0xf0) >> 4, cfi_info
->vpp_max
& 0x0f);
2510 buf_size
-= printed
;
2512 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",
2513 1 << cfi_info
->word_write_timeout_typ
,
2514 1 << cfi_info
->buf_write_timeout_typ
,
2515 1 << cfi_info
->block_erase_timeout_typ
,
2516 1 << cfi_info
->chip_erase_timeout_typ
);
2518 buf_size
-= printed
;
2520 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",
2521 (1 << cfi_info
->word_write_timeout_max
) * (1 << cfi_info
->word_write_timeout_typ
),
2522 (1 << cfi_info
->buf_write_timeout_max
) * (1 << cfi_info
->buf_write_timeout_typ
),
2523 (1 << cfi_info
->block_erase_timeout_max
) * (1 << cfi_info
->block_erase_timeout_typ
),
2524 (1 << cfi_info
->chip_erase_timeout_max
) * (1 << cfi_info
->chip_erase_timeout_typ
));
2526 buf_size
-= printed
;
2528 printed
= snprintf(buf
, buf_size
, "size: 0x%" PRIx32
", interface desc: %i, max buffer write size: %x\n",
2530 cfi_info
->interface_desc
,
2531 1 << cfi_info
->max_buf_write_size
);
2533 buf_size
-= printed
;
2535 switch (cfi_info
->pri_id
)
2539 cfi_intel_info(bank
, buf
, buf_size
);
2542 cfi_spansion_info(bank
, buf
, buf_size
);
2545 LOG_ERROR("cfi primary command set %i unsupported", cfi_info
->pri_id
);
2553 struct flash_driver cfi_flash
= {
2555 .flash_bank_command
= cfi_flash_bank_command
,
2557 .protect
= cfi_protect
,
2560 .auto_probe
= cfi_auto_probe
,
2561 .erase_check
= default_flash_blank_check
,
2562 .protect_check
= cfi_protect_check
,